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A kind of garbage incineration treatment method

A technology of waste incineration and treatment method, applied in the direction of combustion method, incinerator, combustion type, etc., can solve the problems of difficult incineration process control, complex incinerator structure, and high equipment investment cost, so as to improve flue gas purification efficiency and reduce Temperature, the effect of reducing the cost of waste disposal

Inactive Publication Date: 2018-06-01
龚亚强 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The incinerator adjusts the oxygen amount of the independent oxygen supply unit to make the garbage burn evenly and fully on the grate. The structure of the garbage incinerator of the invention is complex, the equipment investment cost is high, and the incineration process is difficult to control

Method used

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  • A kind of garbage incineration treatment method
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  • A kind of garbage incineration treatment method

Examples

Experimental program
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Effect test

Embodiment 1

[0041] refer to figure 1 , a kind of waste incineration processing method of the present embodiment, comprises the following steps:

[0042] (1) The mixed domestic garbage is sorted out by the garbage sorting mechanism to sort out combustibles such as plants, mixed with wood ash incineration auxiliary agent of 10% w / w of combustibles, and then sent to the incinerator for incineration. The air intake keeps the temperature inside the incinerator at 1150°C;

[0043] (2) The flue gas produced by waste incineration is heat-exchanged through the heat exchanger 10 to reduce the temperature of the flue gas, and the heat recovered by the heat exchanger 10 is returned to the incinerator for recycling; through the serpentine water pipe 14 in the incinerator, the waste is accumulated for incineration Heat generated and recycled;

[0044] (3) The flue gas passing through the heat exchanger 10 enters the flue gas dust removal and purification system, the alkaline reaction tank and the act...

Embodiment 2

[0056] A kind of garbage incineration processing method of the present embodiment, and the difference of embodiment 1 is:

[0057] The incineration auxiliary agent is bamboo ash, and its dosage is 8% w / w of the weight of combustibles, and the temperature in the incinerator is controlled at 1050°C;

[0058] The top of the central air intake pipe 3 of the incinerator is located at 1 / 2 of the furnace body, the air hole 4 is inclined 15° to the bottom of the furnace body, and the inner diameter of the central air intake pipe 3 is 1 / 10 of the diameter of the furnace inner layer 5 , such as the furnace inner layer 5 has a diameter of 7.0m, and the inner diameter of the central air intake pipe 3 is 700mm;

[0059] A kind of waste incineration treatment method of this embodiment, the particle content in the flue gas after waste incineration treatment is 0.302mg / Nm 3 , the nitrogen oxide content is 0.041mg / Nm 3 , the total non-methane hydrocarbon content is 1.5mg / Nm 3 , hydrogen chl...

Embodiment 3

[0061] A kind of garbage incineration processing method of the present embodiment, and the difference of embodiment 1 is:

[0062] The auxiliary agent for incineration is a mixture of wood ash and bamboo ash with a weight ratio of 1:2, and its dosage is 12% w / w of the weight of combustibles, and the temperature in the incinerator is controlled at 1100°C;

[0063] refer to Figure 6 and Figure 7 , the inner layer 5 of the incinerator body adopts a metal body with a hollow cavity, the insulation layer 6 is filled with asbestos, and the outer layer is composed of a metal cylinder with a waterproof layer 7; the bottom of the furnace body is made of three metal The support frame 17 is fixed; the top of the central air inlet pipe 3 is positioned at the 3 / 5 place of the body of furnace, the air hole 4 is inclined to the bottom of the furnace body by 8°, and the inner diameter of the central air inlet pipe 3 is 1% of the diameter of the inner layer of the furnace 5 / 15, such as the...

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Abstract

A garbage incineration treatment method, comprising the following steps: (1) Combustibles are sorted out by a garbage sorting mechanism from domestic garbage, mixed with an incineration auxiliary agent with 8-15% w / w of combustibles, and sent to an incinerator for incineration, The temperature in the incinerator is maintained at 1000~1200°C by adjusting the air intake of the central air intake pipe; (2) The flue gas generated by waste incineration is heat exchanged through the heat exchanger to reduce the temperature of the flue gas, and the heat recovered by the heat exchanger Return to the incinerator for recycling; through the serpentine water pipe in the incinerator, the heat generated by garbage incineration is accumulated and recycled; (3) The flue gas passing through the heat exchanger enters the flue gas dust removal and purification system, alkaline reaction pool and activated carbon purification in sequence The device is directly discharged into the atmosphere after purification treatment; the waste incineration treatment method adopts a special incinerator. The garbage incineration treatment method of the present invention has low garbage treatment cost, high efficiency, low equipment investment cost, direct discharge of flue gas, and little environmental pollution.

Description

technical field [0001] The invention relates to a garbage treatment method, in particular to a garbage incineration treatment method. Background technique [0002] At present, my country's domestic waste is increasing at a rate of 10% every year, and the simple treatment of waste only accounts for 2.3% of the total. At present, the area of ​​cultivated land occupied by my country's waste stockpiles over the years is about 500 million square meters, and the direct economic loss is 80% billion yuan. The number of cities in the country has grown to 660, and 200 of them have been surrounded by garbage. With an urban population of 260 million, each person produces 440 kilograms of garbage per year, and the amount of garbage produced is 114 million tons, which can make a city with a population of 1 million cover 1 meter. And it is still increasing at a rate of 8-10% every year. [0003] my country has become the country with the heaviest burden of garbage in the world, and the h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23G5/02F23G5/24F23G5/44F23G5/46
Inventor 龚亚强习良生
Owner 龚亚强