Small and minitype household garbage gasifier

A domestic waste and gasification furnace technology, applied in incinerators, combustion types, indirect carbon dioxide emission reduction, etc., can solve the problems of high thermal ignition loss rate of ash and slag, complex flue gas composition, and unstable combustion in the secondary combustion chamber. Achieve the effects of reducing the load and cost of flue gas treatment, improving the comprehensive incineration effect, and eliminating the inclusion of pyrolysis process

Pending Publication Date: 2020-04-21
云南净美环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] According to the incineration process, small domestic waste incinerators usually have two types: pyrolysis furnace and gasification furnace: the former is that the waste is directly combined with air (oxygen) and then burned in an oxygen-enriched atmosphere, and if necessary, with the help of auxiliary fuel (heat) solution), this method has the characteristics of a large amount of garbage treatment and relatively simple equipment, but the composition of the flue gas is more complex, difficult to deal with and high in treatment costs; Direct combustion of plastics, rubber and other components that are likely to produce a large amount of harmful substances is gasified and then deep-burned, and the flue gas is re-combusted after supplementing the air. This method has a relatively small amount of garbage disposal and relatively complicated equipment, but the smoke The concentration of harmful substances of dioxin in the gas is relatively lower, the flue gas treatment is relatively easy and the t

Method used

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  • Small and minitype household garbage gasifier
  • Small and minitype household garbage gasifier
  • Small and minitype household garbage gasifier

Examples

Experimental program
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Effect test

Example Embodiment

[0040] Example one:

[0041] A kind of small miniature household garbage gasifier, refer to attached Figure 1-4 , Including the furnace body 2, the furnace body 2 is provided with a grate 7 inside, the grate 7 divides the inner cavity of the furnace body 2 into two upper and lower parts, the upper part is the furnace 5, and the lower part is the ash cavity 9; The upper part of the furnace body 2 is provided with a feeding system 1 with a lock valve 20 and a smoke exhaust pipe 17, the furnace 5 is provided with a gasification kettle 4, and the outlet of the feeding system 1 is at the gas Inside the chemical kettle 4, the top of the gasification kettle 4 is provided with an inspection door 19 that can pass through the furnace; an annular air flow channel is left between the outer side wall of the vaporization kettle 4 and the inner side of the furnace 5, that is, the second combustion Zone 3, the bottom is provided with a discharge door 10; the lower part of the second combustion ...

Example Embodiment

[0046] Example two, refer to the attached Figure 1-3 And 5, the difference between the second embodiment and the first embodiment is that the structure of the secondary air supply system 13 has another possible structure. figure 1 Combined on the basis of Figure 4 , The ring tube 24 is arranged outside the furnace body 2, and there is a secondary air inlet pipe 25 communicating with it and a certain number of manifolds 27. The manifolds 27 pass through the furnace body 2. The side wall extends into the second combustion zone 3, and is provided with air supply holes 23 leading to the second combustion zone 3; the secondary air 26 can enter the renewal pipe 24 from the secondary air inlet pipe 25, and then respectively pass through the manifold 27. Enter the second combustion zone 3 from the air supply hole 23.

[0047] With the above structure, when the incinerator is feeding, the lock valve 20 on the feeding system 1 is opened, and the garbage is sent into the hopper of the fee...

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Abstract

The invention relates to a small and minitype household garbage gasifier, wherein a gasification kettle is arranged in a hearth, a secondary combustion zone is arranged between the inner wall of the hearth and the outer wall of the gasification kettle, after entering the gasification kettle, the garbage is heated and dried in an oxygen-free atmosphere, and gasification reaction carries out to generate gasification gas; the gasified garbage is pyrolyzed in an oxygen-poor atmosphere in the hearth to generate pyrolysis flue gas; gasification gas and pyrolysis flue gas are combusted again in the secondary combustion zone in an oxygen-enriched atmosphere, and part of the heat generated by garbage pyrolysis and secondary combustion is absorbed by the garbage in the gasification kettle to maintain the gasification reaction. The gasifier is simple in structure and convenient to operate, and can more accurately control and manage the working parameters of different links of garbage gasificationand incineration, so the gasifier is beneficial to improving the adaptability of an incinerator to garbage, reducing the content of harmful pollutants in discharged flue gas, and further reducing thetreatment difficulty and treatment cost of flue gas.

Description

technical field [0001] The invention relates to the field of harmless and reduction disposal of household garbage, in particular to a small and miniature household garbage gasifier. [0002] technical background [0003] Incineration is an inevitable development trend of domestic waste disposal. [0004] For cities with large populations, concentrating domestic waste and then incinerating power generation is a better choice to realize the reduction, harmless and resourceful disposal of domestic waste. However, for the vast rural areas, since the waste is relatively scattered, large-scale concentration requires many transfer links and long transfer distances, so large-scale centralized incineration for power generation is difficult to achieve in rural areas. In this regard, in recent years, a new way of thinking has been developed in China. After small-scale collection of rural domestic waste, small-scale incinerators are used to incinerate domestic waste according to local c...

Claims

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Application Information

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IPC IPC(8): F23G5/027F23G5/04F23G5/16F23G5/44
CPCF23G5/0276F23G5/04F23G5/165F23G5/44F23G5/444F23G2201/10F23G2201/303Y02E20/34
Inventor 陈迪华邹娱冯威旗刘南渠邹辉
Owner 云南净美环保科技有限公司
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