Rotary Vacuum Paddle Dryer

Evaporation Rate 4.12 Kg/ HrlSq. Meter
Heating Temp From 30°C to 300°C.

Rotary Vacuum Paddle Dryers is utilized in varied industries to extract and obtain dry powder either from solutions or wet cake. Operational efficiency is high and the costs incurred are low with this dryer when compared to other dryers in the market. The mechanism, involves a closed system wherein hot water, steam, or hot fluid is used as a heating medium within the jacket, in the hollow paddle as well as in the hallow shaft. This paddle dryer includes vacuum pump, condenser, receiver and dust collection. Wet feed receives good heat transfer with the constant agitation triggering heated rotating paddles and minimum clearance between scrapers and heated walls. This process gives rise to the evaporation of moisture or solvent, which makes the wet material dry to the essential level. Vacuum is used to remove the vapors that are formed already. Further, the dust problems are eradicated with the absence of large air flows, which also results in low energy consumption. These vacuum paddle dryer (RVPD) are highly appreciated in the market.

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Rotocone Vaccum Dryer

Most suitable for drying of materials which cannot resist high temperature, material which are easily oxidised, volatile materials which should be retrieved, materials strong irritant and poisonous in nature. The rotocone dryer with improved technology integrates during operation under vacuum. The Dryer rotates at a very low speed (5 - 12 rpm) and thus has very low wear and tear and requires very little maintenance. This machine is ideal for crystalline products, granules used in chemical, pharmaceutical and food industries. Revovery of Loss of material is effectively collected by a specially designed pilot filter fitted on the vacuum side, Solvent recovery is through condenser & receiver. The capacity of the machine ranges from 15 liters to 5000 liters.

The rotocone dryer is working under vacuum, facilitates enhanced drying efficiency, low temperature operation and economy of process by total solvent recovery. Due to vacuum, the drying is enhanced resulting in fast drying, cutting the process time, which saves heat energy and electric energy.

SALIENT FEATURES :
Totally sealed and protected from contamination Provision of sampling nozzle without breaking vacuum. Cyclone separator provided for recovery of any solid particle escape. Suitable size condenser & receiver provided for solvent. Mechanical seals for vacuum & hot water connection. Variable speed drive is provided for fine adjustment of the speed.
ADVATAGES :
Reduces drying time Uniform material shuffling over the heated contact surface of the cone. Handling and exposure of final product is avoided. Eliminates need for re-drying of lumps. System can process crystalline or amorphous powders which are prone for lumps Optimum and continuous vacuum during process.
SALIENT FEATURES - GMP Model :
Inner shell/Cone and contact parts in SS 316. Steam/HW water Jacket in SS 304. Insulation with jacket in SS 304. Cyclone separator in SS316. Condenser (shell & tube type) and Receiver ( cylindrical & cone type) in SS304 Digital Temperature Indicators (FLP) at Hot Water inlet and outlet. Digital Temperature Indicator (FLP) and Dial Vacuum Gauge in vapor line. Digital Temperature Controller (FLP) with Pneumatic Valve at Hot water inlet. Butterfly valve (SS316) at discharge port with dummy and hand wheel. Stand and Structure in SS 304 / MS with SS304 cladding. Drive unit enclosed with SS304 Covers Dry Mechanical Seal for vacuum side. Dry Mechanical Seal for Waterside. FLP Motor & FLP Control panel enclosed in SS304 panel Provision for Nitrogen purging/Vacuum release with interlocking to isolation valve. Temperature and Vacuum Gauges (Dial Type) on Cone. Safety Guard/railing telescopic type with limit switch (FLP) with interlocking. Drain plug and safety valve on Hot Water / Steam Jacket. Pulse jet type dust filter is provided inside the cone. Positioning wheel /inching button for cone DRIVE SYSTEM : Gear Box & Motor Direct Coupled and Gear Box to Cone Drive shaft Bull Gear-Pinion Gear Drive. Extended shaft (drive side) so that drive unit can be kept in service zone (if required) Vacuum loading system of wet material into the Cone. PHARMA FINISH : Internal 320 Grit Mirror Polish and Outer 180 Grit Mat Finish.
OPTIONALS :
Cantilever (One side base) construction for small models only. VFD for Drive Motor with RPM indicator. Condenser and Receiver in SS316 instead of SS304. Lump breakers with FLP motor, Mechanical seals and electrical slip-ring joint. Auto Bin loading mechanism with accessories. Vacuum pump with FLP motor. Hot water system (steam heated) with tank and circulation pump.

ODEL	RV-RCVD-15	RV-RCVD-100	RV-RCVD-200	RV-RCVD-300	RV-RCVD-500	RV-RCVD-750	RV-RCVD-1000	RV-RCVD-1500	RV-RCVD-2000	RV-RCVD-3000
Total Vol. in Ltrs.	15	100	200	300	500	750	1000	1500	2000	3000
Working Vol. in Ltrs.	9	60	120	180	300	450	600	900	1200	1800
Capacity in Kg. (max)	5	30	75	100	175	250	350	500	700	1050
RPM	6	6	6	6	6	6	6	6	6	6
Heat Transfer area in M2	0.5	3.5	4.2	5	6	7	8	9.5	11	15
Cyclone Seperator in Ltrs.	1	5	7	10	15	20	25	30	40	60
Condensor in M2	0.1	0.5	0.75	1	1.5	2	2.5	3	4	6
Receiver in Ltrs.	3	20	40	50	75	100	150	200	250	350
Charging Ht. in mm	700	13500	1500	1650	1800	2000	2300	2500	2650	2850
Discharge Ht. in mm	320	625	660	660	710	660	710	710	710	710
Gear Box	2”	2.5”	3”	3“	4”	4”	5”	6”	6”	8”
Main Drive Motor	0.5HP	2HP	3HP	3HP	5HP	5HP	7.5HP	10HP	10HP	15HP
Lump Breaker Motor	----	----	----	0.5HP	0.75HP	0.75HP	1HP	1HP	2HP	3HP
Charging dia. in mm	150	250	300	300	350	400	400	450	500	600
Discharge dia. in mm	75	125	150	150	150	200	200	250	250	300

Design Temp: 200"C, Testing: Vacuum side Full vacuum upto 750 mm of Hg & Steam/Hot water jacket side 5 Kgs/cm2 pressure test.

NOTE: Loading per batch in kg. of wet material based on 0.5 - 0.6 bulk density & 60% container volume.

OVERALL DIMENSIONS (APPROX.) :

Length in mm (with Cyclone)	870	1675	1900	2100	2300	2750	3100	3300	3550	3850
Length in mm (with Cyclone, Condenser & Receiver)	1150	2080	2300	2550	2850	3320	3750	4150	4450	4850
Width in mm (with Safety Guards)	580	1250	1350	1500	1650	1780	2080	2320	2575	2800
Height in mm	760	1625	1800	1950	2050	2380	2650	2840	3025	3250
Weight in Kg. (Approx.)	415	850	950	1050	1250	1580	1950	2480	3250	3450

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Rotocone Dryer

SALIENT FEATURES:

Totally sealed and protected from contamination
Provision of sampling nozzle without breaking vacuum.
Cyclone separator provided for recovery of any solid particle escape.
Suitable size condenser & receiver provided for solvent.
Mechanical seals for vacuum & hot water connection.
Variable speed drive is provided for fine adjustment of the speed.

ADVATAGES :

Reduces drying time
Uniform material shuffling over the heated contact surface of the cone.
Handling and exposure of final product is avoided.
Eliminates need for redrying of lumps.
System can process crystalline or amorphous powders which are prone for lumps
Optimum and continuous vacuum during process.

Most suitable for drying of materials which can not resist high temperature, material which are easily oxidised, volatile materials which should be retrieved, materials strong irritant and poisonous in nature. The rotocone dryer with improved technology integrates during operation under vacuum. The rotocone dryer facilitates enhanced drying efficiency, low temperature operation and economy of process by total solvent recovery.

Model	RV-DCRVD50	RV-DCRVD100	RV-DCRVD200	RV-DCRVD300	RV-DCRVD500	RV-DCRVD700	RV-DCRVD1000
Total Volume	50 Ltrs	100 Ltrs	200 Ltrs	300 Ltrs	500 Ltrs	700 Ltrs	1000 Ltrs
Working Volume	25 Ltrs	50 Ltrs	120Ltrs	150 Ltrs	250 Ltrs	350 Ltrs	500 Ltrs
RPM	6	6	6	6	6	6	6
Gear Box	2.5"	3"	3"	3.5"	4"	5"	5"
Condenser	0.5 m²	1 m²	1.5 m²	2 m²	3 m²	3.5 m²	4 m²
Receiver	25 Ltrs	50 Ltrs	100 Ltrs	150 Ltrs	200Ltrs	250 Ltrs	300Ltrs
Cyclone Seperator	50 Ltrs	75 Ltrs	100 Ltrs	120 Ltrs	130Ltrs	150 Ltrs	175 Ltrs
Main Drive Motor	1 HP	1.5 HP	3 HP	3 HP	5 HP	7.5 HP	7.5HP
Lump Breaker Motor	0.16 HP	0.25 HP	0.5 HP	0.5 HP	0.75 HP	1 HP	1 HP
Vaccum Pump	1 HP	3 HP	5 HP	7.5 HP	7.5 HP	10 HP	10 HP

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Rotary Vacuum Paddle Dryer

Rotary Vacuum Paddle Dryers is utilized in varied industries to extract and obtain dry powder either from solutions or wet cake. Operational efficiency is high and the costs incurred are low with this dryer when compared to other dryers in the market. The mechanism, involves a closed system wherein hot water, steam, or hot fluid is used as a heating medium within the jacket, in the hollow paddle as well as in the hallow shaft. This paddle dryer includes vacuum pump, condenser, receiver and dust collection.

Wet feed receives good heat transfer with the constant agitation triggering heated rotating paddles and minimum clearance between scrapers and heated walls. This process gives rise to the evaporation of moisture or solvent, which makes the wet material dry to the essential level. Vacuum is used to remove the vapors that are formed already. Further, the dust problems are eradicated with the absence of large air flows, which also results in low energy consumption. These vacuum paddle dryer (RVPD) are highly appreciated in the market.

FEATURES :
Drying optimization is a process that is carried out by means of external and internal heating. The large heat transfer area available on the wide paddles and hollow shaft enable and equip maximum heat transfer efficiency to the product. External heating is generated through jacket or limpet coils, while internal heating through a hollow shaft, along with a set of hollow paddles. These hallow paddles are equipped with scrapers that have very low gap from wall in order to maximize heat transfer. Scrapers move material to all parts of the dryer and additionally help in discharging the material. There is a hollow rotating agitator shaft that imparts heat to the product and scrapes the shell wall tumbles. This facilitates for maximum heat transfer and discharge product whenever required. Mechanical seals at Shell ends/Stuffing Box. The vessel is well designed to take temperature stresses in the process of vacuum drying. Thereby, there is low power consumption with the use of helical bevel gear box. Special floating bearing design to combat temperature stresses. So as to remove the condensate formed by steam heating in the hallow shaft, special rotary joints are also designed to introduce heating media in the hollow shaft. Product Filter is very efficiently used to arrest valuable product carried away with the vapors in a filter bag. The arrested product particles are thrown back into the dryer by reverse flow of pulsating air. Generally, the product filters are heated to avoid condensations of vapors in the filter bag. User friendly discharge valve design provides vacuum tight closing when the material is processed. The quick opening facility lever facilities filling of bags when material discharge and packed. Breaker bars are incorporated in the RVPD to break the lumps when the product forms lumps at some stage in drying process. Insulation with Cladding will provide on heating jacket/Limpet coil

Rotary Vacuum Paddle Dryers (RVPD) is a cylindrical jacketed vessel with a central agitator having specially designed blades. The blades of this Rotary Vacuum Paddle Dryer (RVPD) are so designed that they sweep the entire internal surface and at the same time turn the material so that all the particles are come in contact with the heated surface. GMP construction - Cylindrical, horizontal vessel with flat welded rear cover and a hinged flat front door opening up over the entire vessel diameter. With the door open the internals of the machine are fully accessible for cleaning and inspection purposes All surfaces in contact with the product such as the vessel, rear cover, front door, agitator and vapor filter are heated, providing very efficient heat exchange. To provide for good heat exchange and discharge characteristics the cylindrical vessel, the rear cover, the front door and the agitator are machined to assure the smallest possible tolerances between agitator and vessel walls. The agitator is installed at the rear of the dryer, supported on one side of the vessel only. The agitator is designed to meet the requirements of this particular dryer type to assure good and even mixing action throughout the dryer volume, also in reverse operation. The agitator provides very good emptying characteristics, and at the same time reduces friction onto the product to a minimum to prevent local overheating as well as to prevent directional thrust or local product compression. A double mechanical seal is installed on the rear cover, well accessible for cleaning and maintenance purposes. A spacer in between the seal and the agitator drive permits removal of the seal without disassembling the drive. Dry or wet running mechanical seals may be installed. The central agitator shaft is supported on the one end bearings housed in bearing housing in such a way that the alignment remains always intact. This central agitator is driven by means of a Motor & Gear box through the bull Gear. The horizontal shell is jacketed to heat the shell with steam / hot water or any other thermal fluid. Limpet coil is provided instead of jacket if the heating media is fluid. A Dust Catcher consisting of bag filter is provided on the top to prevent the losses of material particles after the drying process. A Condenser of adequate heating surface area is provided wherein the evaporated vapors are condensed and these condensed vapors are then collected in the receiver of suitable capacity, placed beneath the condenser. A Vacuum Pump of adequate capacity is provided & fitted to the receiver of these rotary vacuum dryers to create the vacuum in the dryer shell through the Receiver, Condenser and Dust Catcher.

SALIENT FEATURES OF ROTARY VACUUM DRYERS (RVD) :
Very suitable for drying materials which are heat sensitive, as low temperature for drying can be maintained by high vacuum Lowest energy consumption compared to any other batch type dryer due to higher differential temperatures. Higher Thermal Efficiency. Almost 100% recovery of solvents. Heating Temp.: From 30C to 300C. Evaporation Rate : 4.12 Kg/ HrlSq. Meter of Heating surface area of water at heating temperature of 100C. Limpet coil could be provided instead of jacket if the heating media is fluid. Breaker bars of approximately same length as dryer shell can be provided if lump formation is expected during drying

MODEL	RV-RVPD500	RV- RVPD750	RV- RVPD1000	RV-RVPD1500	RV- RVPD2000	RV- RVPD3000	RV-RVPD4000	RV-RVPD5000
TOTAL VOLUME IN LTRS	500	750	1000	1500	2000	3000	4000	5000
TOTAL VOLUME IN LTRS	300	450	600	900	1200	1800	2400	3000
CAP IN KGS (MAX)	175	250	350	500	700	1000	1350	2000
SHELL DIA MM	650	725	800	900	1000	1100	1250	1350
SHELL LENGTH MM	1500	2000	2000	2350	2600	3200	3300	3500
RPM OF PADDLE	14	12	10	10	8	8	8	6
HEAT TRANSFER AREA- M2	4	5	7.5	9	10	14	17	20
DUST FILTER AREA –M2	0.25	0.35	0.5	0.75	1.0	1.25	1.5	1.75
CONDENSOR –M2	1.5	2	2.5	3	3.5	4	4	4
RECEIVER IN LTRS	75	100	150	200	250	250	250	250
CHARGING HT. IN MM	1650	1750	1900	2200	2300	2400	2600	2800
DISCHARGING HT. IN MM	650	650	750	750	750	750	750	750
CHARGING SIZE IN MM	100dia.	100dia.	125dia.	125dia.	150dia.	150dia.	200dia.	250dia.
DISCHARGING SIZE IN MM	150dia.	175dia.	200dia.	200dia.	250dia.	250dia.	300dia.	300dia.
GEAR BOX	4”	4”	5”	5”	6”	7”	8”	10”
MAIN DRIVE MOTOR	5HP	5HP	7.5HP	7.5HP	10HP	15HP	20HP	25HP
LENGTH IN MM	2900	3350	3750	4350	4750	5250	5500	5750
WIDTH IN MM	950	1050	1125	1200	1325	1500	1625	1700
HEIGHT IN MM	2200	2500	2850	3000	3250	3700	3800	4000
WEIGHT IN KG (APPROX)	800	1000	1250	1500	1900	2500	3000	3500

Design Temp: 200OC, Testing: Vacuum side Full vacuum upto 750mm of Hg & Steam/Hot water jacket side 5 Kgs/cm2 pressure test

CANTILEVER MODEL:

MODEL	RV- RVPD50	RV- RVPD100	RV-RVPD200	RV- RVPD500	RV-RVPD750	RV-RVPD1000	RV- RVPD1500	RV-RVPD2000
TOTAL VOLUME IN LTRS	50	100	200	500	750	1000	1500	2000
TOTAL VOLUME IN LTRS	30	60	120	300	450	600	900	1200
CAP IN KGS (MAX)	15	30	70	175	250	350	500	700
SHELL DIA MM	400	475	600	800	900	1000	1150	1250
SHELL LENGTH MM	450	600	750	1000	1175	1300	1600	1650
RPM OF PADDLE	16	16	14	14	12	10	10	8
HEAT TRANSFER AREA- M2	1.1	1.5	2.1	4.0	5.0	7.5	9.0	10
DUST FILTER AREA –M2	0.05	0.07	0.10	0.25	0.35	0.50	0.75	1.0
CONDENSOR –M2	0.25	0.5	1.0	1.5	2.0	2.5	3.0	3.5
RECEIVER IN LTRS	15	25	50	75	100	150	200	250
CHARGING HT. IN MM	1800	2000	2300	1750	1900	2000	2300	2550
DISCHARGING HT. IN MM	600	600	650	650	650	750	750	750
CHARGING SIZE IN MM	100dia.	100dia.	125dia.	100dia.	100dia.	125dia.	125dia.	150dia.
DISCHARGING SIZE IN MM	125dia.	150dia.	175dia.	200dia.	225dia.	250dia.	250dia.	300dia.
GEAR BOX	2”	3.5”	3”	4”	4”	5”	5”	6”
MAIN DRIVE MOTOR	1HP	2HP	3HP	5HP	5HP	7.5HP	7.5HP	10HP
LENGTH IN MM	1500	1800	2300	2800	3200	3500	4000	4500
WIDTH IN MM	600	750	900	1125	1200	1325	1600	1625
HEIGHT IN MM	1800	2200	2500	2850	3000	3250	3700	3800
WEIGHT IN KG (APPROX)	400	500	600	800	1000	1250	1500	1900

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Tray Dryer

SALIENT FEATURES:

All stainless steel 304 / 316 / 316L CGMP construction for pharmaceutical applications or external mild steel with stainless steel interiors with rounded corners or full mild steel construction
Blower fans are axial flow type with variable pitch blades to adjust air flow to suit product being dried
Electric / steam / thermic fluid / diesel oil / LPG heating
Tunnel type dryers wherein trolleys are placed one behind the other and double door loading
Flame - proof construction with explosion flaps, non-sparking metal combinations, earthing chain etc.
Positive exhausts wherever required
Continuously wound and crimped fins for the heat exchangers in case of steam / thermic fluid heated models.
Steam / thermic fluid heat exchangers tested at 20Kg / cm hydraulically
Electric heater terminals situated outside the hot zone in case of electrically heated dryers. Heaters are accessible and replaceable from outside the dryer

MODEL		TD 6	TD 12	TD 24	TD 48	TD 96	TD 192
CAPACITY IN TRAYS size 16" X 32" X 1.25"(h)		6	12	24	48	96	192
MOTOR HP		0.5	0.5	1	1	2	4
NO OF TROLLIES		NIL	NIL	NIL / 1	1	2	4
Heating Load KW	100° C	1.5	3.0	6.0	9.0	18	36
	150° C	3.0	4.5	7.5	12	21	39
	200° C	4.5	6	9	15	24	42
	250° C	6	7.5	10.5	18	27	45
	300° C	7.5	9	12	21	30	48

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Agitated Nutsch Filter Dryer

This is a combination of filter and dryer unit in single equipment to achieve economy in process, space and energy thereby improving profitability. This equipment can be used in manufacturing process of various Pharmaceuticals, Intermediate Compounds, Chemicals, Fine Chemicals, Agro Chemicals, Insecticides, Pesticides, Dyes and Food Products.

The Agitated Nutsche Filter Dryer is a closed vessel designed to separate solid and liquid by filtration under pressure or vacuum. The advanced technology of agitation and hydraulics used in the equipment makes it versatile and user friendly. The resulting wet cake can be reslurried and washed thoroughly with water or solvents unlike in untsch filters or centrifuges. Wash liquid quantity can be controlled and recycled, reducing effluent load. The discharge of wet cake is automatic. If the process demands filtration in chilled or hot condition, it is also possible. Drying of wet cake is also possible when drying features are incorporated. The unit consists of a totally enclosed and sealed cylindrical shell fitted with a agitator assembly which moves horizontally as well as vertically. The cylinder operates under pressure or vacuum or both. The closed operation ensures odorless, contamination free and nonpolluting working conditions maintaining product purity and hygiene. The equipment is functionally safe and easy to operate.

The equipment is functionally safe and easy to operate. It can carry out various phase of process operations, viz: Crystallization, filtration, extraction, Discoloration, Washing and drying. The number of conventional machines employed for filtration process are also reduced. It has multi- functional utility, saves on power, labor, floor space, material wastage and time.

Additionally, the equipment is fitted with a stirrer mechanism which efficiently agitates the slurry during cake washing, smoothes and squeezes the cake during filtration and assists in the automatic discharge of the cake. A side discharge arrangement is provided, closing and opening through hydraulic / mechanical means. A filter plate with filter cloth is fitted at the bottom of the shell for separating liquids from solids. The cake is retained on top of the plate. The upward and downward movement of the agitator assembly is utilized for cake washing, compressing, drying and discharge of the cake. A vacuum pump connected to receiver is installed for discharging of liquids and vapor collection. The cylindrical shell can also be provided with a jacket. A filter plate is located at the base of the vessel in level with the discharge port. The filter medium, usually a filter cloth, is fitted on the filter plate which is replaceable type.

In addition a special multilayered filter plate can also be provided instead of filter cloth. In dryer construction heating is provided on shell by limpet in bottom by jacket and through hollow agitator and blades. Vacuum is applied for fast drying.

It has multi- functional utility, saves on power, labor, floor space, material wastage and time. We use sophisticated technology that combines hydraulics and agitation, which makes the Agitated filter dryer easy to use and very versatile.

SALIENT FEATURES :

Designed and Manufactured to suit critical hygienic conditions of pharma and food industries. (cGMP MODEL).
Operated by hydraulic cylinders and held tightly with zero leakage.
Offered in various materials of constructions, like stainless steel, Hastelloy, Titanium, carbon steel, rubber lined carbon steel and lead lined carbon steel.
Offered in a wide range of filtration area capacities from 25 Lits upto 10000 Lits.
Method of operation is totally enclosed, neat and hygienic. These conditions are excellent for solvent recovery, Hollow Shaft and Hollow Blades for thorough drying.
Suitable for handling of sterile compounds or toxic and hazardous materials without human intervention.
Enables easy non-manual and automatic cake / solid discharge. Scraper blade is provided to scrap the material which may stay on shell.
Hollow Shaft and Hollow Blades for thorough drying.
Specially designed tank cleaning nozzle is provided for thorough cleaning of inside of filter body. (CIP)

Home>>Product Range>>Dryers Section>>Agitated Nutsch Filter Dryer

This is a combination of filter and dryer unit in single equipment to achieve economy in process, space and energy thereby improving profitability. This equipment can be used in manufacturing process of various Pharmaceuticals, Intermediate Compounds, Chemicals, Fine Chemicals, Agro Chemicals, Insecticides, Pesticides, Dyes and Food Products.
The Agitated Nutsche Filter Dryer is a closed vessel designed to separate solid and liquid by filtration under pressure or vacuum. The advanced technology of agitation and hydraulics used in the equipment makes it versatile and user friendly. The resulting wet cake can be reslurried and washed thoroughly with water or solvents unlike in untsch filters or centrifuges. Wash liquid quantity can be controlled and recycled, reducing effluent load. The discharge of wet cake is automatic. If the process demands filtration in chilled or hot condition, it is also possible. Drying of wet cake is also possible when drying features are incorporated. The unit consists of a totally enclosed and sealed cylindrical shell fitted with a agitator assembly which moves horizontally as well as vertically. The cylinder operates under pressure or vacuum or both. The closed operation ensures odorless, contamination free and nonpolluting working conditions maintaining product purity and hygiene. The equipment is functionally safe and easy to operate.
The equipment is functionally safe and easy to operate. It can carry out various phase of process operations, viz: Crystallization, filtration, extraction, Discoloration, Washing and drying. The number of conventional machines employed for filtration process are also reduced. It has multi- functional utility, saves on power, labor, floor space, material wastage and time.

AGITATED NUTSCH FILTER DRYER-GMP

AGITATED NUTSCH FILTER DRYER (ANFD-Blade)

CONSTRUCTION :

Additionally, the equipment is fitted with a stirrer mechanism which efficiently agitates the slurry during cake washing, smoothes and squeezes the cake during filtration and assists in the automatic discharge of the cake. A side discharge arrangement is provided, closing and opening through hydraulic / mechanical means. A filter plate with filter cloth is fitted at the bottom of the shell for separating liquids from solids. The cake is retained on top of the plate. The upward and downward movement of the agitator assembly is utilized for cake washing, compressing, drying and discharge of the cake. A vacuum pump connected to receiver is installed for discharging of liquids and vapor collection. The cylindrical shell can also be provided with a jacket. A filter plate is located at the base of the vessel in level with the discharge port. The filter medium, usually a filter cloth, is fitted on the filter plate which is replaceable type.
In addition a special multilayered filter plate can also be provided instead of filter cloth. In dryer construction heating is provided on shell by limpet in bottom by jacket and through hollow agitator and blades. Vacuum is applied for fast drying.
It has multi- functional utility, saves on power, labor, floor space, material wastage and time. We use sophisticated technology that combines hydraulics and agitation, which makes the Agitated filter dryer easy to use and very versatile.

SALIENT FEATURES :

Designed and Manufactured to suit critical hygienic conditions of pharma and food industries. (cGMP MODEL).
Operated by hydraulic cylinders and held tightly with zero leakage.
Offered in various materials of constructions, like stainless steel, Hastelloy, Titanium, carbon steel, rubber lined carbon steel and lead lined carbon steel.
Offered in a wide range of filtration area capacities from 25 Lits upto 10000 Lits.
Method of operation is totally enclosed, neat and hygienic. These conditions are excellent for solvent recovery, Hollow Shaft and Hollow Blades for thorough drying.
Suitable for handling of sterile compounds or toxic and hazardous materials without human intervention.
Enables easy non-manual and automatic cake / solid discharge. Scraper blade is provided to scrap the material which may stay on shell.
Hollow Shaft and Hollow Blades for thorough drying.
Specially designed tank cleaning nozzle is provided for thorough cleaning of inside of filter body. (CIP)

TECHNICAL DESIGN PARAMETERS :

Design Pressure	Vessel -Full Vaccum , Jacket/Limpet 4bar
Design Temp	150deg
Finish	Internal: 240gr Mirror finish, External 180gr Mat finish

OPERATIONAL SEQUENCE :

The operation of Nutsche Filters requires a complex manipulation of valves and hydraulics so present day installations are always semi or fully automated.

Filtration

The filter is charged with slurry and pressure is applied to displace the filtrate leaving the cake retained over the filter medium. For slurries with a wide distribution of coarse fast settling solids and slow settling fines there is a risk of segregation with the finer fraction settling over the coarse fraction. When this happens the fines seal the cake and slow down the cake formation so keeping the slurry in suspension with rotating arms during filtration assists in forming a homogeneous cake.

Cake Washing

In the washing stage a spray ring or connections on top of the cover introduce the wash liquid over the cake. This displaces the mother solution with the wash liquid but with such in-situ washing the efficiency may be quite low if the cake forms with an uneven thickness.
One of the advantages of the Nutsche Filter is the ability to smoothen the cake's surface prior to applying spray wash so that the entire bed is washed evenly.
Washing efficiency may be further improved if air or gas are not allowed to enter the cake in a multi-washing system so the wash liquids always displace the solutions in a "piston" like manner. This is achieved by a special detector that monitors the surface of the cake for moisture and once air or gas start entering the bed a signal is transmitted to close the filtrate valve and reopen it once next washing commences.

Cake Repulping

Many processes require high washing efficiency to remove the contaminating liquid from the product and washing the cake by repulping yields the most efficient product purity. This is done by resuspending the cake with the paddle arms for thorough mixing with the wash solution. During resuspension the rotating arms are moving slowly downwards and are "shaving" the bed gradually layer after layer until the entire cake enters the slurry.

Pressure Drying

In the drying stage air or gas purges the cake until the captive moisture is reduced to an asymptotic level and in practical terms the cake is considered to be as dry as possible.
To obtain minimum moisture the cake is smoothened by reversing the rotation of the paddle or auger arms and exerting controlled pressure on its surface with the hydraulic system. This seals cracks in the cake so that air or gas will not bypass the bed.

Vacuum Drying

Further reduction in cake moisture may be obtained by slowly rotating and lowering the paddle arms to scrape and de-lump the cake. To take advantage of the drying ability of the Nutsche Filter it is worth considering the option of heating components such as the vessel, filter floor and paddles to enhance drying.

Cake Discharge

Once all the stages are completed the cake discharge valve opens and the paddle arms on the smaller machines or the auger arms on the larger ones are rotated and lowered to convey the dry cake towards the center. The same procedure also applies to side discharge machines however it should be noted that in this case the cake comes out intermittently and not continuously. This may have a layout impact on the downstream facility such as the conveyor that handles the product to storage.
On some filters the cloth or woven mesh screen may be backwashed with water to dislodge and remove any cake residue that adhered to the medium after cake discharge.

MODEL	RV-ANFD-50	RV-ANFD-100	RV-ANFD-200	RV-ANFD-300	RV-ANFD-500	RV-ANFD-1000	RV-ANFD-1500	RV-ANFD-2000	RV-ANFD-3000	RV-ANFD-5000
WORKING VOLUME	50	100	200	300	500	1000	1500	2000	3000	5000
CAKE VOLUME	25	50	100	150	200	400	750	1000	1500	2500
FILTER AREA	0.2	0.4	0.5	0.6	0.75	1.1	1.5	2	3	5
VESSEL DIA	425	600	700	800	1000	1200	1400	1600	2000	2500
VESSEL HT	400	400	550	600	600	900	1000	1000	1000	1000
BOTTOM OPENING STROKE	300	300	300	300	300	300	300	300	300	300
DISCHARGE VALVE ID	150	150	200	200	250	300	300	400	450	450
AGITATOR RPM	10	10	10	10	10	10	10	10	10	10
AGITATOR DRIVE	1	1	2	3	5	7.5	10	12.5	15	20
AGITATOR VERTICAL STROKE	200	200	200	200	250	250	300	400	450	450
AGITATOR UP DOWN SPEED	250	250	250	250	250	250	250	250	250	250
OVERALL DIMENSION	1300 X 1300 X 2400	1500 X 1500 X 2500	1700 X 1700 X 3000	1800 X 1800 X 3000	2000 X 2000 X 3300	2200 X 2500 X 3675	2300 X 2300 X 3800	2500 X 2500 X 3800	2800 X 2800 X 4375	3500 X 3500 X 4600
DESIGN PRESSURE	VESSEL – FULL VACUUM, JACKET / LIMPET – 4 BAR
DESIGN TEMP	150 DEGREE
FINISH	INTERNAL : 240GR. MIRROR FINISH , EXTERNAL : 180GR. MATT FINISH

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Vacuum Tray Dryer

Vacuum Tray Dryer is used mainly for drying of high grade, temperature and oxygen sensitive products. Vacuum Tray Dryer is highly suitable for drying hygroscopic substances, which are dried to very low residual moisture, content level. Frequently vacuum drying cabinets are the sole possibility for drying lumpy, glutinous products or products of low pomposity.

Its also suitable for drying of thermal sensitive materials easily resolved, polymerized or deteriorated under higher temperature. Sterilization can be conducted prior to the drying process, during which no matter is allowed to enter the product. Static vacuum dryer eliminates the configuration damage of the drying materials, therefore widely used in pharmaceutical, chemicals and foodstuff etc.

SALIENT FEATURES :

Vacuum Tray dryer is the most commonly used batch dryer. They are box-shaped and loaded and unloaded via a door. Inside are several heating plates mounted one above the other on which the product is placed in trays.
The bottoms of both heating plates and trays should be as smooth as possible to permit optimal heat transfer between plates and product.
The medium flowing through the heating plates is water, steam or thermal oil.
The distance between the heating plates is determined primarily by the surface loading and the foaming of the product.
To avoid retrograde condensation the cabinet walls are indirectly preheated by the heating plates. Next, the product is introduced and heated at atmospheric pressure. Only after all individual product trays reach the same temperature the cabinet is evacuated and drying can start.
The preheating phase is very important in order that the drying curve and the foaming of the product is identical throughout the cabinet.
During the main drying phase the vacuum is in the range of 40 to 80 mbar abs and in the final drying phase vacuums of only few mbar abs are reached.
Heating temperatures are normally in the range between 800C and 1100C. Depending on product and surface load, drying takes from a few hours to 1 to 2 days.
For some products the vacuum and temperature profiles are automatically controlled in order to prevent a pass over of the critical product temperature.
The dimensioning of the vacuum system is an important factor in the design of drying cabinet systems. If for example vigorous foaming of the product is desired, evacuation to the operational vacuum level must take place very quickly.
Vapours produced during drying are taken out direct, or via a steam jet compressor to a surface condenser in which the vapours condensate. The non-condensable vapours are extracted by the vacuum system.
On completion of the drying, the product can be cooled by circulating of cooling water through the heating plates.
Often vacuum drying cabinets are supplied to new, small production operations in newly opened markets. Following successful development of the market, it could be worthwhile to replace the cabinets through continuous vacuum belt type dryers.

SALIENT FEATURES - GMP Model :
Main Body/Vacuum chamber SS316 with heavy duty SS316 flange and Stiffeners. Door SS 316 (Dish Curve shape) with heavy duty SS316 flange. Shelves Hollow Type pads SS316 with flow Baffles. Condenser (Shell & tube type) and Receiver (Cylindreical/ Botom Cone type) in SS 304 with Isolation valve and Flow Glass in between to monitor condensation. Trays (without back folding) in SS316 rounded corners and edges. Explosion Vent / Rupture Disc on vacuum chamber. Digital Temperature Controller (FLP) with solenoid controlled Pneumatic operated valve at Hot Water inlet. Provision for Validation Port on Body Digital Temp., Indicator (FLP) at H.W. inlet & outlet. Dial type Vacuum gauge and Digital Temp., Indicator (FLP) in Vapor line. Pressure release valve in Steam line. View Glass/Light glass provided on vacuum chamber Door, Body and Receiver. Silicon transparent gasket for door. Nitrogen purging valve provided on Vacuum chamber. Vacuum break valve provided on vacuum chamber Drain valve for Vacuum chamber and Receiver.
Temperature Accuracy: _+ 2 to 30C

FINISH :Internal 320 Grit Mirror Polish and Outer 180 Grit Mat Finish.

OPTIONALS :
Condenser and Receiver in SS 316 instead of SS304. Limpet coil on Vacuum chamber. Limpet coil on Vacuum chamber. Hot water system (Steam heated) with tank (Insulated), SS304 Steam Radiator/Electrical heaters, Circulation pump with FLP Motor and controls. Insulation on the vacuum chamber outer surface (with / without ) door. The insulation is enclosed and covered with SS 304 sheet & polished to matt finish.

MODEL	RV-VTD 3TRAY	RV-VTD 6TRAY	RV-VTD 12TRAY	RV-VTD 24TRAY	RV-VTD 36TRAY	RV-VTD 48TRAY	RV-VTD 96TRAY
No. Of Trays	3	6	12	24	36	48	96
Capacity in Kg	3-5	12-18	25-35	50-75	75-100	100-150	200-300
Tray volume in Ltrs	5	10	10	10	10	10	10
Capacity in Kg.	1 – 1.5	2 - 3	2 – 3	2 - 3	2 - 3	2 - 3	2 – 3
Tray size : L W H in mm	406x406 x 32	812x406 x 32	812x406 x 32	812x406 x 32	812x406 x 32	812x406 x 32	812 x 406 x 32
No. of Heating Shelfs	4	7	7	9	13	17	17
Shelf size in mm	430x430	430 X835	835x835	835x1259	835x1250	835x1250	1250x1650
Distance between shelves in mm	100	100	100	100	100	100	100
Trays on each self	1	1	2	3	3	3	6
Condenser	0.2m2	0.5 m2	0.75m2	1m2	1.5m2	2m2	3m2
Receiver	10Ltrs	25 Ltrs	50 Ltrs	75 Ltrs	100 Ltrs	150 Ltrs	250 Ltrs
H.W. Distribution Pipes	1”	1 ½”	1½”	1½”	1½”	1½”	2”
Door Gasket (Silicon)	16mmSQ	16mmSQ	16mmSQ	16mmSQ	16mmSQ	16mmSQ	16mmSQ
No. of Door Bolts (Φ40)	4	6	8	10	12	12	14
Design Temperature : 150 deg.’C, TESTING : The vacuum dryer shelves are hydro-tested 5 Kg/Cm2 in Assembled condition. The vacuum chamber is tested for full vacuum.
OVERALL DIMENSIONS (APPROX.) :
Width in mm	900	1250	1700	1800	1800	1850	2300
Depth in mm	900	1500	1500	1900	1900	1900	2300
Height in mm	1100	1850	1900	2100	2250	2650	2650
Weight in mm	400	700	1000	1500	2000	2500	5500

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Fluid Bed Dryer

Ravi Fluid Bed Dryers are available in the following options:

Design confirming to GMP norms.Model available ranging from 5Kgs. To 500kgs.
Bucket type bottom chamber above ground level.
Intrinsically safe earthing arrangement.
Air filteration supplied with 20 micron washable filter followed by 5 micron Microvee filter & finally air is passes through 0.3 micron Hepa Filter .
Differential pressure gauges to monitor pressure drop across inletfilters and finger bag.
(CIP)Clean in Place systems for washing down during product changes.
Pneumatically Operated system for lifting & sealing of Product Container.
Product container lifting platform and air cylinder replaced by pneumatically operated gasket.
Inflatable gasket system for sealing lifting platform with bottom jack chamber instead of bottom bag.
PP Finger bag fitted with the help of inflatable silicon rubber tube.
Automatic pneumatically operated shaking system with timer & butterfly valve.
Fully sealed air control damper with positional for accurate air monitoring.
Solid flow chart monitor for detection of torn finger bag also available, which automatically STOP the machine blower if it detects any particle escaping from torn finger bag towards exhaust.
Fully sealed air control damper with positional for accurate air monitoring.
Solid flow chart monitor for detection of torn finger bag also available, which automatically STOP the machine blower if it detects any particle escaping from torn finger bag towards exhaust.
Rear chamber with heating coils and air inlet filter modules to be mounted in remote areas.
Fan motor unit to be mounted in remote areas.
Stainless steel interconnecting duct lines with flanges for connecting remote mounted heating and fan motor modules.
Noise level below 90 DB with specially designed silencer
Microprocessor based control panels with key board, display unit & printer.

Model	RV30	RV60	RV120	RV200	RV250	RV300	RV400	RV500
Capacity of Drier (gs)	30-40	60-70	120-140	200-220	250-280	300-330	400-450	500-550
Container Volume (Ltrs) *	100	220	430	590	730	900	1330	1660
Blower Motor HP/KW	5/3.7	10/7.5	15/11	20/15	25/18.5	25/18.5	30/22.5	40/30
Heating Load - KW	18	36	54**	-	-	-	-	-
Steam Consumption (Kgs/Hr)	35	65	100	160	200	250	320	380

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Fluid Bed Dryer

Ravi Fluid Bed Dryers are available in the following options:

Design confirming to GMP norms.Model available ranging from 5Kgs. To 500kgs.
Bucket type bottom chamber above ground level.
Intrinsically safe earthing arrangement.
Air filteration supplied with 20 micron washable filter followed by 5 micron Microvee filter & finally air is passes through 0.3 micron Hepa Filter .
Differential pressure gauges to monitor pressure drop across inletfilters and finger bag.
(CIP)Clean in Place systems for washing down during product changes.
Pneumatically Operated system for lifting & sealing of Product Container.
Product container lifting platform and air cylinder replaced by pneumatically operated gasket.
Inflatable gasket system for sealing lifting platform with bottom jack chamber instead of bottom bag.
PP Finger bag fitted with the help of inflatable silicon rubber tube.
Automatic pneumatically operated shaking system with timer & butterfly valve.
Fully sealed air control damper with positional for accurate air monitoring.

Solid flow chart monitor for detection of torn finger bag also available, which automatically STOP the machine blower if it detects any particle escaping from torn finger bag towards exhaust.
Fully sealed air control damper with positional for accurate air monitoring.
Solid flow chart monitor for detection of torn finger bag also available, which automatically STOP the machine blower if it detects any particle escaping from torn finger bag towards exhaust.
Rear chamber with heating coils and air inlet filter modules to be mounted in remote areas.
Fan motor unit to be mounted in remote areas.
Stainless steel interconnecting duct lines with flanges for connecting remote mounted heating and fan motor modules.
Noise level below 90 DB with specially designed silencer
Microprocessor based control panels with key board, display unit & printer.

Model	RV30	RV60	RV120	RV200	RV250	RV300	RV400	RV500
Capacity of Drier (gs)	30-40	60-70	120-140	200-220	250-280	300-330	400-450	500-550
Container Volume (Ltrs) *	100	220	430	590	730	900	1330	1660
Blower Motor HP/KW	5/3.7	10/7.5	15/11	20/15	25/18.5	25/18.5	30/22.5	40/30
Heating Load - KW	18	36	54**	-	-	-	-	-
Steam Consumption (Kgs/Hr)	35	65	100	160	200	250	320	380

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Dryers #889368

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Rotary Vacuum Paddle Dryer

Tray Dryer

Agitated Nutsch Filter Dryer

Vacuum Tray Dryer

Fluid Bed Dryer

Fluid Bed Dryer

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