Vaigunth Ener Tek (P). Ltd

Pallikaranai, Chennai, Tamil Nadu

The Municipal Solid Waste (MSW) shall undergo different stages of Recycling Processes, as follows:

MSW Feeding system:

1. Vertical Screw FeederVertical Screw feeding Systems are the most economical and space saving solution for transferring Municipality solid waste materials from a lower to a higher level. The bulk material withdrawn from a silo, hopper, conveying or feeding device may be discharged by the vertical screw into a hopper, Vertical Screw feeding System is excellent for high volumetric efficiency and excellent mechanical features.
2. Hopper 1This container for a loose bulk material such as solid waste grain to store in huge quantity, typically one that tapers downward and is able to discharge its contents at the second hopper; It has the shutter-1 locking arrangement at bottom to avoid gas leaking from the Gasifier.
3. Hopper 2The second Hopper will be discharge Solid waste constantly to the reaction Chamber through horizontal Screw feeder. It has another shutter-2 locking arrangement at bottom to avoid gas leaking from the Gasifier. The shutter 1 and Shutter 2 locking arrangement operated by micro process operating system.
4. Horizontal Screw Feeding systemThe horizontal screw feeder taken solid waste from Hopper 2 and deliver solid waste in to the reaction chamber in constant flow rate basis, so that the reaction and Syngas preparation will be constant.

Reaction Chamber:This gas processed in three steps. They are

1. DryingA mixture of pulp (water-soluble), plastic (polyvinyl chloride powder), protein (soybean protein powder) and water used as the model refuse. The operational conditions were varied and the changes in weight and temperature with time of reaction. Since our system is upward draft gasification system, the upcoming hot Syngas drying solid waste up to required 20 % moisture level.
2. Hydrogen Oxygen Inverter burner combustorShorooqal designed and implemented special type burner for MBM Combustor Pyrolysis Gasifier, This combustor burned a mixture of hydrogen Oxygen and release high energy with the high temperature in the range of 2500 Degree Celsius. It has separate Hydrogen Oxygen gas generator for continues operation.
3. GasificationDue to the high temperature of thermal conversion of organic materials at elevated temperature, the solid waste release gases called syngas with Tar, water and condensable oil.

Ash collection:

1. Rotor Fire GrateThis mechanism rotate at bottom of reaction chamber, its duty is send back the reacted solid waste to Ash collecting chamber
2. Ash cooling SystemThis cooling system provided for cool the ash by water before entering the quenching chamber, Due to cooling of ash water will become steam and feed to the reaction chamber for energy-rich Syngas production.
3. Screw feederThe collected ash in the chamber will be sent back to ash quenching system by this screw feeder.
4. Ash quenching systemThe final stage of hot ash will be quenched in the water through this chamber, so that the ash can be removed frequently.

Cyclone:The cyclone expected to remove up to 95 percent of the tar, which will result in a smaller candle filter system and longer filter life. Thus both capital and maintenance costs will be reduced. This has separate cooling arrangement for removing the tar and dust.

Gas Purification:The purification of syngas is a key stage in Integrated Gasification Combined Cycle (IGCC) plants. Nowadays syngas cleaning is carry out by means of a sequence of purification steps, each of them standing alone devoted to the abatement of a set of components, thus typically resulting in cooling the gas. Moreover, each purification step is optimize without taking into account the whole sequence, from the gasification step through syngas purification up to its final utilization. Many downstream processes require that the syngas be cleaned of trace levels of impurities. Trace minerals, particulates, sulfur compounds, mercury and unconverted carbon can be removed by 3 different processes.

1. Water purifierThis system remove oil and some carbon particle from the Syngas and it has separate multimedia filter with sand and stone for removing oil and tar.
2. Acid PurifierThis system removes alkaline particle and moisture from the Syngas and it has separate multimedia filter with sand and stone for removing impurities
3. Alkaline PurifierThis system remove acid particle from the Syngas and it has separate multimedia filter with sand and stone for removing the impurities

The high-efficiency Hydroxy Generator is compact and easy to operate, and specifically safe because there is not an explosive hazard like LPG gas containers. Therefore, the Hydroxy gas is used as a necessary and useful flame for every thermal process.