Pneumatic medical waste burning process for rotary kiln and device therefor

A medical waste, rotary kiln technology, applied in incinerators, combustion methods, combustion types, etc., can solve problems such as damage to refractory materials of rotary kilns, affecting the operation of slag systems, and achieve the effect of avoiding damage, inhibiting generation and emissions

Inactive Publication Date: 2008-10-15
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cause damage to the refractory material of the rotary kiln, seriously affect the ope

Method used

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  • Pneumatic medical waste burning process for rotary kiln and device therefor
  • Pneumatic medical waste burning process for rotary kiln and device therefor
  • Pneumatic medical waste burning process for rotary kiln and device therefor

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Embodiment Construction

[0034] See Figure 1 to Figure 7 , the device of the present invention comprises a feeding mechanism consisting of a wheeled trash can 0 and a chain hoist 2, a hydraulic piston push rod 1 connected to the feeding hopper 3, a hydraulic pressure plate door 33, a hydraulic fire The interlocking and closed feeding mechanism composed of doors 34, the primary combustion chamber 4 of the rotary kiln connected with the feeding mechanism, the secondary combustion chamber 5 which is movable and airtightly embedded with the primary combustion chamber 4 of the rotary kiln, and the secondary combustion chamber 5 connected in turn Waste heat boiler 17, quench tower 18, absorption tower 19, bag filter 24, induced draft fan 25 and chimney 26. The primary combustion chamber 4 of the rotary kiln is provided with a primary blower 8 and an auxiliary fuel inlet 9 connected to it in the control room for air-controlled anoxic combustion. The rotating furnace wall of the primary combustion chamber 4...

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PUM

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Abstract

The invention discloses a process and a device for incinerating rotary kiln gas-controlled medical waste, relating to the environmental protection technical field. The process of the invention comprises the following steps of: collecting the whole packet of medical waste refuse bag and feeding into a feeding hopper, then feeding into a rotary kiln initial combustion chamber by a feeding mechanism which is closed by chain, and completing the processes of drying, pyrolyzing and air controlled anoxycausis of the medical waste. Waste gas generated by the rotary kiln initial combustion chamber enters to a secondary combustion chamber to undergo the process of air controlled oxygen-enriched complete combustion, wherein bottom ash with a little redial carbon is flamed at an inclined fire grate which is arranged in an ash well at the lower part of the secondary combustion chamber. The smoke gas at an outlet of the secondary combustion chamber is exhausted into the atmosphere by a draft fan through a chimney after surplus heat utilization of a surplus heat boiler, smoke gas sharp quenching of a quench tower, a dry-type deacidification and cloth-bag dust removal of a bag-type duster. Compared with the prior art, the process and the device for incinerating rotary kiln gas-controlled medical waste have the advantages of good operating economical efficiency, automatic safety continuous feeding, fluent slag tapping system and low index of pollution emission.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a process and a device for gas-controlled incineration of medical waste using a rotary kiln. Background technique [0002] At present, the number of beds in medical institutions at all levels in the country is about 3.177 million, and the daily medical waste generated nationwide is as high as 1880-2800 tons. In order to safely and properly dispose of these toxic and hazardous wastes, the state has clearly formulated guidelines for the use of special recycling and centralized incineration of medical wastes, so the technology of harmless incineration of medical wastes has developed rapidly. [0003] Medical waste contains a large number of pathogens and bacteria, and its strict incineration technology requires that the entire bag must be sealed and fed to prevent harmful leachate pollution in medical waste and threaten human health, and to achieve safe combustion. ...

Claims

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Application Information

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IPC IPC(8): F23G5/00
CPCY02E20/34
Inventor 李水清姚强乐国明刘惠永项光明胡华李炳余
Owner TSINGHUA UNIV
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