Coconut Shell Carbonization Furnace

Product Introduction

The biomass dry distillation carbonization furnace is a new model product from Dingli that adopts an advanced thermal dry distillation carbonization technology, resulting in an increased carbonization rate from 85% to 98%. This equipment is easy to operate, safe, environmentally friendly, and highly efficient, providing significant energy savings, making it the ideal equipment for coal, gas, oil, and power plant usage.

Furthermore, the use of a hoisting composite structure in multiple sets of combined distillation carbonization furnaces, along with the hanging cooling method, significantly shortens the production cycle and improves the efficiency of charcoal production. Additionally, the unique carbon gas back-burning technology is used to burn the flue gas produced during carbonization, making it fully utilized, satisfying the heat stove demand, and achieving energy conservation and environmental protection goals. The excess gas can also be utilized as a heat source for the dryer, saving a lot of fuel during production, and increasing the enterprise's benefits.

This equipment can perform carbonization without the use of dynamic electricity and features mobile production, providing simple and convenient operation, making it an ideal choice for large-scale charcoal production.

Working Principle

The TongDing biomass dry distillation carbonization furnace comprises a furnace body, furnace cover, inner tank, material cage, combustible gas return pipe, exhaust pipe, flue gas dust removal device, tank lifting device, and thermometer. The furnace employs anaerobic dry distillation to remove volatile substances in the biomass, achieving biomass carbonization. The carbonization process involves four stages: charging and sealing the furnace, preheating and drying, anaerobic carbonization, and cooling carbonization.

To charge and seal the furnace, the biomass core rods, shells, and other materials are placed in the cage, which is divided into two or three layers, and then put into the inner tank. The cover is locked, and the tank is lifted into the furnace. Preheating and drying occur in the furnace using wood and other fuel, gradually heating from room temperature to 220-250 ℃. This process takes 1.2-2.0 hours, depending on the material's moisture content, density, and particle size, and it discharges the material's moisture and air in the tank.

During anaerobic carbonization, the furnace temperature increases until weak yellow smoke (hydrogen and other volatile substances) discharges from the smoke pipe, marking the beginning of carbonization. Combustible gas is recovered and sent back to the furnace for ignition. The intake air is adjusted, and the tank temperature is maintained at 300-450 ℃ for 2.0-3.5 hours, depending on the carbonized material's density, particle size, and carbonization depth requirements. Natural flameout indicates the end of carbonization.

To cool down and obtain carbon, the tank is lifted out of the furnace and placed in a cooling area for natural or water spray cooling until the inner tank temperature drops below 50 ℃. The cover is then opened, and the charcoal is removed. The total furnace temperature and carbonization time are 3.5-5.5 hours, and it can complete 3-6 furnace cycles in 24 hours. The exhaust gas is treated with a dust collector to meet discharge standards.

Using three sets of carbonization furnace in parallel allows for peak shifting carbonization. The volatile gas generated during the process can fully heat the carbonization furnace, eliminating the need for additional fuel, and achieving energy savings and environmental protection.

Parameter

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