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N-level incineration treatment technology for domestic garbage

A domestic waste and technical technology, which is applied in the field of N-level incineration treatment of domestic waste, can solve the problems of difficult maintenance of equipment, high cost of civil construction, large volume of rotary kiln equipment, etc., to achieve full utilization and increase the effect of residence time

Inactive Publication Date: 2010-07-14
CITIC HEAVY INDUSTRIES CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Rotary kiln equipment is large in size, high in civil construction costs, and difficult in equipment maintenance

Method used

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  • N-level incineration treatment technology for domestic garbage
  • N-level incineration treatment technology for domestic garbage

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Embodiment Construction

[0033] figure 1It is a schematic structural view of the 4-stage incinerator of the present invention. It can be seen that the N-stage incinerator used to realize the N-stage incineration treatment technology of domestic waste in the present invention consists of an air lock feeder 1, a smoke outlet 2, and the N-n Classification grate 3, furnace body 4, N-n+1 stage distribution grate 5, N-n+2 stage distribution grate 6, N-stage distribution grate 7, air inlet pipe 8 , a support column 9 and an air lock discharger 10, said N≥2 and a natural integer, said n=N-1. to combine figure 1 , when N=4, the N-nth grade distribution grate corresponds to the first grade distribution grate, the N-n+1 grade distribution grate corresponds to the second grade distribution grate, and the N-n+2 grade The distribution grate corresponds to the third-level distribution grate, and the N-level distribution grate corresponds to the fourth-level distribution grate, that is to say, the number of distrib...

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Abstract

The invention relates to an N-level incineration treatment method for domestic garbage, which comprises that: an N-level incinerator (N is more than or equal to 2) is arranged between a rotary kiln and a decomposing furnace; tertiary hot-blast air is introduced into the N-level incinerator, so that spiral upcurrent with the temperature of 850 DEG C is formed; the domestic garbage of which the moisture content is less than 10 percent is crushed into garbage materials of which the granularity is less than 30 millimeters, and a small quantity of the garbage materials are fed into a furnace body slowly through an air-lock feeder, and meet N-level dividing grates which are arranged from top to bottom to undergo the combustion, decomposition and gasification of organic matters; and generated acidic fume is discharged to the decomposing furnace through smoke outlets distributed at multiple positions uniformly, and after the decomposing furnace reaches the furnace temperature of over 900 DEG C and is in the state of alkalinity, the acidic fumes can be further subjected to neutralization treatment to reach discharging standards finally. Ash residues of the garbage are discharged out of the furnace body by a totally-enclosed electric vibrating discharger, are conveyed to a kiln hood of the rotary kiln by conveying equipment to enter the rotary kiln, and are used as a raw component for producing cement for calcination and solidified in the cement finally, so that the treatment aim of the 'harmlessness, reduction and recycling' of the domestic garbage is fulfilled.

Description

technical field [0001] The invention belongs to the technical field of domestic waste treatment, in particular to an N-stage incineration treatment technology of domestic waste. Background technique [0002] The disposal of domestic waste is one of the most popular research topics in today's society. The country clearly puts forward the principle of "harmless, reduced, and resourceful" waste disposal. [0003] At present, the common treatment methods of domestic waste include incineration, landfill and biological method. [0004] The landfill method requires the construction of a large area of ​​landfill and the treatment of leachate, which requires a large investment, and there is also a hidden danger of secondary pollution caused by the leakage of the filtrate. [0005] The garbage biological method is to ferment domestic garbage. The process is complicated and the equipment performance requirements are high. It is suitable for the treatment of garbage with biodegradable ...

Claims

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Application Information

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IPC IPC(8): F23G5/033F23G5/04F23G5/027F23G5/44C04B7/28
CPCY02P40/10
Inventor 王继生袁曙光崔慧君许卫革金树宝
Owner CITIC HEAVY INDUSTRIES CO LTD
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