Multi-stage waste incineration purification treatment technology

Abstract

The invention discloses a multi-stage waste incineration purification treatment technology. The specific technological process comprises the following steps that heavy metal and dioxin in incinerationflue gas are treated, specifically, a certain amount of limestone and calcium chloride are added into waste to be mixed and stirred evenly, HCl in the waste can be effectively removed, and generationof Cl2 is further reduced, so that generation of the dioxin is reduced, and pretreated waste is obtained; the pretreated waste is placed into an incinerator to be incinerated, oxygen is blown in fromthe bottom of the incinerator through an air blower in the incinerating process, stirring and incinerating are conducted at the same time in the incinerating process, sufficient burning of the wasteis facilitated, generation of the dioxin is reduced, and meanwhile an inhibitor is constantly sprayed from the top of the incinerator; and a dust removing cloth bag of a bag-type dust remover is filled with a mixture of activated carbon powder and quicklime. According to the multi-stage waste incineration purification treatment technology, alkalization treatment is conducted before the waste is incinerated, chlorine sources in the waste can be reduced, meanwhile oxygen is blown into the incinerator, so that the waste is burned sufficiently, and generation of the dioxin is reduced.

Description

technical field [0001] The invention belongs to the field of garbage incineration and relates to a multi-stage garbage incineration purification treatment process. Background technique [0002] With the improvement of my country's economic level, the treatment of urban garbage is becoming more and more environmental protection and resource reuse. Due to the unique advantages of incineration in reduction and resource utilization, the incineration of garbage in recent years The rate is increasing day by day, but in the process of waste incineration, a small amount of chlorine sources are often mixed. When the incineration conditions are improper, dioxins are likely to be produced in the incineration flue gas, which will cause air pollution, and dioxins are extremely difficult to dissolve in water and fat , It is difficult to exclude the accumulation in the organism, and it has a strong teratogenic and carcinogenic effect on the human body. [0003] In the process of waste incin...

AI Technical Summary

Problems solved by technology

[0002] With the improvement of my country's economic level, the treatment of urban garbage is becoming more and more environmental protection and resource reuse. Due to the unique advantages of incineration in reduction and resource utilization, the incineration of garbage in recent years The rate is increasing day by day, but in the process of waste incineration, a small amount of chlorine sources are often mixed. When the incineration conditions are improper, dioxins are likely to be produced in the incineration flue gas, which will cause air pollution, and dioxins are extremely difficult to dissolve in water and fat , It is difficult to exclude the accumulation in the organism, and it has a strong teratogenic and carcinogenic effect on the human body