Indirect thermal cracking and ash combustion smelting furnace and treatment method thereof

Abstract

The invention belongs to the technical field of organic solid waste treatment, and particularly relates to an efficient and energy-saving indirect thermal cracking and ash combustion smelting furnace with a wide utilization range. The efficient and energy-saving indirect thermal cracking and ash combustion smelting furnace comprises a rotary thermal cracking and ash combustion smelting furnace body and a rotary barrel / rotary kiln sealing device, wherein the rotary thermal cracking and ash combustion smelting furnace body comprises an indirect thermal cracking barrel body with a spiral pushing device in the middle and a spiral inverse pushing ash combustion smelting heating furnace at the outer part of the barrel body; the rotary kiln sealing device comprises a rotary barrel body, a feeding end material collection hood, a discharge end material collection hood, a water seal filling sealing ring, a nitrogen emergency sealing air chamber and scale sealing pieces; the rotary indirect thermal cracking barrel body is lined with a heat-resistant steel barrel made from a silicon carbide material; a rotary screw conveyer is arranged in the heat-resistant steel barrel; and a high temperature resistant ceramic screw conveyer blade is fixed to the outer part of the barrel body. According to the efficient and energy-saving indirect thermal cracking and ash combustion smelting furnace, a cracking furnace, a secondary combustion chamber and a smelting furnace are integrated in one furnace body, noncondensable gas, condensed oil and carbon residues generated after cracking can be utilized as fuel makeup, heat consumption is greatly reduced, and remaining ash is smelted till ash reaches the safe landfill standard.

Description

technical field [0001] The invention belongs to the technical field of organic solid waste treatment, and particularly relates to an indirect thermal cracking and ash burning melting furnace capable of extracting, separating, reducing and reusing reusable energy in solid waste, which is highly efficient, energy-saving and has a wide range of applications. its processing method. Background technique [0002] In most cities in my country, municipal solid waste, medical waste, and waste plastics are treated by incineration, that is, high-temperature heat treatment, and many small hospitals use small incinerators. This method has insufficient fuel during incineration, etc. Many problems have caused these solid wastes to be incompletely burned, and highly toxic dioxins are easily produced, causing great harm to people's health. Under such conditions, it is difficult to achieve harmless waste, reduction, and recycling of waste. In addition, when hazardous waste is incinerated, ...

AI Technical Summary

Problems solved by technology

[0012] Aiming at the deficiencies in the prior art, the present invention provides an indirect thermal cracking and ash burning melting furnace with high efficiency, energy saving and wide application range, which can solve the problem that the tube wall of the analysis chamber should be deformed, worn, not resistant to corrosion and non-condensable gas is not completely Combustion and other problems; the present invention has a simple structure and can burn carbonized products at the same time, thereby realizing ash melting, reducing the heat consumption of indirect thermal desorption equipment and reducing the disposal cost of residue landfill

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