Sludge incinerator contaminant ultralow emission device and method

Abstract

The invention discloses a sludge incinerator contaminant ultralow emission device and method. The device comprises a combustion furnace, an exhaust pipe, a carbon tank and a purification tank. A feedhopper is mounted on the top of the combustion furnace, the bottom of the combustion furnace is connected with a base, electromagnetic valves are mounted at the joint of one end of the combustion furnace and the feed hopper and the joint of the other end of the combustion furnace and the base, one side of the middle of the combustion furnace is connected with an air inflow pipe, the other side ofthe middle of the combustion furnace is connected with a suction pipe, and a one-way valve is mounted at the joint of the suction pipe and the combustion furnace. The bottom of the base is connected with the exhaust pipe, one end of the exhaust pipe is connected with the carbon tank, and one end of the carbon tank is connected with the purification tank through the exhaust pipe. By means of the device, emitted contaminants can be reduced, ultralow emission is achieved, and environmental pollution is reduced. Active carbon layers are freely switched to be used, the frequency of replacing the active carbon layers in the carbon tank is reduced, the active carbon layers are replaced at a time after all the active carbon layers are used, and therefore the working efficiency is improved. The active carbon layers are easy and rapid to switch, the operation is convenient, and the filtering efficiency is unchanged.

Description

technical field [0001] The invention relates to a discharge device, in particular to a sludge incinerator ultra-low pollutant discharge device and method, and belongs to the application field of sludge incineration treatment. Background technique [0002] At present, the treatment and disposal methods of sludge mainly include sanitary landfill, drying, land use and incineration. Sludge incineration has the obvious advantages of reduction, harmlessness, and resource utilization. During the incineration process, all germs are killed, the stability of heavy metals is improved, and toxic organic matter is oxidized and decomposed. The volume of residual ash of sludge after incineration is much smaller than that of sludge after mechanical dehydration. At present, sludge incineration has been widely used all over the world, and the proportion of sludge incineration will be further increased in the future. [0003] However, there are still some deficiencies in the use of the exist...

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Problems solved by technology

[0004] The purpose of the present invention is to provide an ultra-low pollutant discharge device and method for sludge incinerators, which can solve the problem that existing sludge incinerators need to add coal powder during incineration, which increases the cost of combustion, and the increase in coal powder combustion is toxic. substance

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