Fuel-free device for oil-sludge segmented drying, pyrolysis, incineration and secondary combustion of garbage sludge

Abstract

A fuel-free device for oil-sludge segmented drying, pyrolysis, incineration and secondary combustion of garbage sludge is composed of a quench cooler, a hot gas inlet, a multifunctional integrated furnace, a gas outlet, a denitrator, a desulfurizer and an electrostatic dust collector. The quench cooler is connected with and communicates with the hot gas inlet through a connecting pipe. The hot gasinlet is arranged on one side of the upper portion of the multifunctional integrated furnace and communicates with the multifunctional integrated furnace. The gas outlet is arranged on one side of the upper portion of the multifunctional integrated furnace and communicates with the multifunctional integrated furnace. The multifunctional integrated furnace is connected with and communicates with the denitrator through a connecting pipe. The denitrator is connected with and communicates with the desulfurizer through a connecting pipe. The desulfurizer is connected with and communicates with theelectrostatic dust collector through a connecting pipe. The multifunctional integrated furnace is connected with and communicates with the quench cooler through a connecting pipe. Multiple function areas are arranged in the multifunctional integrated furnace, drying, pyrolysis, incineration and secondary combustion are integrated, and environment protection treatment of garbage and the like is perfectly achieved by cooperating with the tail gas purification function.

Description

technical field [0001] The invention relates to the field of environmental protection and chemical industry, in particular to a device for drying, pyrolysis and incineration of garbage sludge and oil sludge in stages, and a fuel-free device for secondary combustion. Background technique [0002] There are many kinds of equipment for waste treatment such as garbage sludge. In general, there are vertical pyrolysis furnaces, and the materials are baked in the lower part. This structure has poor ventilation and poor drying effect; The material is placed on the furnace grate to heat and dry, and the air permeability is improved, but the efficiency is low; there is also a horizontal rotary furnace for indirect heating and drying, although the entire layout is easy to operate, but it occupies a large area There are many supports for each equipment, and the investment is relatively large. Because the economic benefits of solid waste treatment are very low, the investment is large, a...

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Problems solved by technology

[0002] There are many kinds of equipment for waste treatment such as garbage sludge. In general, there are vertical pyrolysis furnaces, and the materials are baked in the lower part. This structure has poor ventilation and poor drying effect; The material is placed on the furnace grate to heat and dry, and the air permeability is improved, but the efficiency is low; there is also a horizontal rotary furnace for indirect heating and drying, although the entire layout is easy to operate, but it occupies a large area There are many supports for each equipment, and the investment is relatively large. Because the economic benefits of solid waste treatment are very low, the investment is large, and it is difficult to promote; the biggest problem with the above-mentioned pyrolysis and incineration equipment is that the drying, pyrolysis, and incineration of materials cannot be realized in one equipment. and secondary pyrolysis of dioxins and burning off excessive carbon monoxide; even if a second combustion chamber is set up separately in the entire treatment system to deal with dioxins and carbon monoxide, due to the large amount of water vapor and carbon monoxide in the material mixed together, the combustible gas is extremely Large dilution, unable to reach the concentration of combustion, resulting in the need to rely on external fuel to ablate carbon monoxide, etc., resulting in extremely high processing costs, making it difficult to maintain sustainable operation or even lose money

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