Multi-stage waste incineration purification treatment technology

A waste incineration and purification process technology, applied in incinerators, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of dioxins being difficult to dissolve in water, easy to produce dioxins, difficult to eliminate, etc. problems, to achieve the effect of reasonable reuse, low raw material prices, and cost savings

Pending Publication Date: 2018-01-19
ANHUI SHENGYUN ENVIRONMENT PROTECTION GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A multi-stage waste incineration purification treatment process, the specific process flow is as follows:

[0030] Step 1: Treatment of heavy metals and dioxins in the incineration flue gas: (1) Add a certain amount of limestone and calcium chloride to the garbage, mix and mix evenly, and leave it for 3 days, wherein 10g of limestone and 20g of calcium chloride are added to each kilogram of garbage Calcium; can effectively remove HCl in garbage, further reduce Cl 2 generation, thereby reducing the generation of dioxins and obtaining pre-treated waste;

[0031] (2) Put the pretreated garbage in an incinerator for incineration. During the incineration process, oxygen is blown in from the bottom of the incinerator through a blower, and it is incinerated while stirring during the incineration process, which is conducive to the full combustion of garbage and reduces the formation of dioxins. , while continuously spraying inhibitors from the top of the incinerator, wherein t...

Embodiment 2

[0041] A multi-stage waste incineration purification treatment process, the specific process flow is as follows:

[0042] Step 1: Treatment of heavy metals and dioxins in the incineration flue gas: (1) Add a certain amount of limestone and calcium chloride to the garbage and mix well, leave it for 5 days, and add 15g of limestone and 30g of calcium chloride per kilogram of garbage Calcium; can effectively remove HCl in garbage, further reduce Cl 2 generation, thereby reducing the generation of dioxins and obtaining pre-treated waste;

[0043] (2) Put the pretreated garbage in an incinerator for incineration. During the incineration process, oxygen is blown in from the bottom of the incinerator through a blower, and it is incinerated while stirring during the incineration process, which is conducive to the full combustion of garbage and reduces the formation of dioxins. , while continuously spraying inhibitors from the top of the incinerator, wherein the inhibitors are ammonia...

Embodiment 3

[0053] A multi-stage waste incineration purification treatment process, the specific process flow is as follows:

[0054] Step 1: Treatment of heavy metals and dioxins in the incineration flue gas: (1) Add a certain amount of limestone and calcium chloride to the garbage, mix and mix evenly, and leave it for 10 days, wherein 20g of limestone and 50g of chloride are added to each kilogram of garbage Calcium; can effectively remove HCl in garbage, further reduce Cl 2 generation, thereby reducing the generation of dioxins and obtaining pre-treated waste;

[0055] (2) Put the pretreated garbage in an incinerator for incineration. During the incineration process, oxygen is blown in from the bottom of the incinerator through a blower, and it is incinerated while stirring during the incineration process, which is conducive to the full combustion of garbage and reduces the formation of dioxins. , while continuously spraying inhibitors from the top of the incinerator, wherein the inhi...

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PUM

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G5/02B01J20/24B01J20/30C02F1/28B01D53/02C02F101/20
Inventor 汪汉雄
Owner ANHUI SHENGYUN ENVIRONMENT PROTECTION GRP CO LTD
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