CN206255839U - A kind of medical wastes incineration high-concentration fume acid-producing apparatus - Google Patents

A kind of medical wastes incineration high-concentration fume acid-producing apparatus Download PDF

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Publication number
CN206255839U
CN206255839U CN201621368629.2U CN201621368629U CN206255839U CN 206255839 U CN206255839 U CN 206255839U CN 201621368629 U CN201621368629 U CN 201621368629U CN 206255839 U CN206255839 U CN 206255839U
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China
Prior art keywords
producing apparatus
medical wastes
acid
flue gas
circulating
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CN201621368629.2U
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Inventor
晏振辉
阮剑波
王利飚
卢青
邹伟龙
李超
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Shanghai solid waste disposal Co., Ltd.
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SHANGHAI SOLID WASTE MANAGEMENT CENTER
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Abstract

The utility model discloses a kind of medical wastes incineration high-concentration fume acid-producing apparatus, including:Gas fume conveying system, flue gas washing system, circulating cooling system, flue gas emission;Circulating cooling system includes the water circulating pump, heat exchanger, the first spiral nozzle and the second spiral nozzle that are sequentially connected;Flue gas washing system is provided with circulating water pool, and the water in circulating water pool does the sour gas that absorbent is used to absorb in flue gas;Water circulating pump is connected with circulating water pool;The utility model has can effectively reduce chlorinity in flying dust and sewage, while the advantage of acid can be prepared into.

Description

A kind of medical wastes incineration high-concentration fume acid-producing apparatus
Technical field
The utility model is related to environmental technology field, more particularly to a kind of medical wastes incineration high-concentration fume relieving haperacidity to set It is standby.
Background technology
Incineration treatment technology is the safest processing method of clinical waste, and application is all being widelyd popularize in countries in the world, and its is excellent Point is not only can thoroughly to kill all microorganisms, and most of organic matter can also be made to incinerate burning, is transformed into inorganic ash content, Solid waste volume can be reduced after burning, so as to substantially reduce the final disposal expense of clinical waste, eliminate clinical waste secondary Pollution, but, clinical waste is due to chloride more, thus HCl concentration in incineration flue gas is significantly higher, and according to surveying and determination, medical treatment is useless HCl concentration in thing incineration flue gas is average up to 3000 ~ 4000mg/Nm3.
At present, processed using acid stripping method for the high-concentration acidic wastewater gas that medical wastes incineration is produced, conventional depickling Technology is divided into dry method, semidry method, wet method three major types according to absorbent state.
Dry-process deacidification is:Acid contaminant in flue gas in reactor with Ca (OH)2Dry powder direct reaction, waste heat boiler Outlet temperature be l80 DEG C ~ 240 DEG C.When flue-gas temperature is higher, take to spray cooling measure in reactor.Experimental study Result shows that deacidification efficiency is 70% ~ 80% when flue-gas temperature is at 200 DEG C ~ 230 DEG C.
Semidry method depickling typically uses calcium oxide(CaO)Or calcium hydroxide(Ca(OH)2)It is absorbent, is prepared into hydroxide Calcium solution.Using nozzle or rotary atomizer by aqua calcis penetrating reactor, the liquid of 30 μm ~ 50 μm of particle diameter is formed Drop, is reacted with sour gas.
Wet purification refers to that alkaline absorbent reacts with sour gas under wet condition and removes product.Wet method depickling Using scrubbing tower form, scrubbing tower is divided into cooling end and dehumidification by absorption portion.In cooling end, by the direction flue gas from cooling end Middle spray cooling liquid, 60 DEG C ~ 70 DEG C are cooled to by flue-gas temperature.
There is respective shortcoming in existing various medical wastes incineration deacidifying flue gas technologies:What dry method and semidry method were produced Flying dust is hazardous waste, can only bring greatly tired to recycling because chlorinity is high in flying dust using being filled after solidification Difficulty, cost of disposal greatly, limits effective implementation of flying dust resource.
, in water, the chloride ion content in sewage is high, and content is thousands of to up to ten thousand for chloride shift in wet method depickling flue gas Mg/L sewage, considerably beyond local sewage drainage standard, it is difficult to accomplish qualified discharge, many places are due to no municipal sewers Net, it is impossible to use the technology.
Therefore, one kind being badly in need of in the prior art can effectively reduce chlorinity in flying dust and sewage, while acid can be prepared into, it is real The recycling of existing resource, the equipment so as to realize the medical wastes incineration high-concentration fume relieving haperacidity of energy-saving and emission-reduction.
The content of the invention
The purpose of this utility model is to provide a kind of medical wastes incineration high-concentration fume acid-producing apparatus, is effectively reduced The content of chlorine in flying dust and sewage, while acid can be prepared into, realizes the recycling of resource.
To achieve the above object, the specific skill of a kind of medical wastes incineration high-concentration fume acid-producing apparatus of the present utility model Art scheme is:
A kind of medical wastes incineration high-concentration fume acid-producing apparatus, including:Gas fume conveying system, flue gas washing system, follow Ring cooling system, flue gas emission;Wherein, circulating cooling system includes the water circulating pump, heat exchanger, the first spiral shell that are sequentially connected Churning mouth and the second spiral nozzle;Flue gas washing system is provided with circulating water pool, and the water in circulating water pool makees absorbent for inhaling Receive the sour gas in flue gas;Water circulating pump is connected with circulating water pool, and the water in circulating water pool is used as recirculated water simultaneously.
Further, the first spiral nozzle and the second spiral nozzle are arranged at the top of scrubbing tower, lead footpath pipe and access scrubbing tower It is interior.
Further, the bottom of scrubbing tower is connected with circulating water pool.
Further, the top of circulating water pool is cylinder, and bottom is inverted cone, also, the bottom of circulating water pool is set There are sewage draining exit and sour floss hole.
Further, the upper end for leading footpath pipe has been sequentially connected with the second straight tube, the second elbow, the first straight tube, air-introduced machine and airduct.
Further, the upper end of circulating water pool is connected with smoke discharging pipe, for the flue gas after demisting to be discharged.
Further, demister and filling pipe are provided with smoke discharging pipe.
Further, also include:Sack cleaner.
Further, the outlet temperature of heat exchanger is:50~60℃.
Further, the flow of water circulating pump is:10~20m³/h.
A kind of medical wastes incineration high-concentration fume acid-producing apparatus of the present utility model have advantages below:
1st, sour gas is absorbed with water, absorbent cost is reduced compared to wet method depickling.
2nd, acid effectively can be prepared into from medical wastes incineration high-concentration fume, be back in production, realize resource Recycle.
3rd, the top of circulating water pool is cylinder, and bottom is inverted cone, and this structure can be effectively improved in circulating water pool The emission effect of acid.
4th, heat exchanger is provided with circulating cooling system, the temperature of recirculated water is effectively controlled.
5th, water circulating pump is provided with circulating cooling system, is recycled the water of circulating water pool, economized on resources.
6th, filling pipe is provided with flue gas emission, can be to being kept the skin wet in circulating water pool, so that circulating water pool In water level keep it is constant.
Brief description of the drawings
Fig. 1 is a kind of structural representation of medical wastes incineration high-concentration fume acid-producing apparatus of the present utility model.
Specific embodiment
In order to be better understood by the purpose of this utility model, 26S Proteasome Structure and Function, below in conjunction with the accompanying drawings, to of the present utility model A kind of medical wastes incineration high-concentration fume acid-producing apparatus do further detailed description.
As shown in figure 1, a kind of medical wastes incineration high-concentration fume acid-producing apparatus of the present utility model include:Flue gas is conveyed System 1, flue gas washing system 2, circulating cooling system 3, flue gas emission 4.Wherein, circulating cooling system 3 includes sequentially phase Water circulating pump 34 even, heat exchanger 31, the first spiral nozzle 32 and the second spiral nozzle 33;Flue gas washing system 2 is provided with to be followed Ring pond 22, the water in circulating water pool 22 does the sour gas that absorbent is used to absorb in flue gas;Water circulating pump 34 and recirculated water Pond 22 is connected, and water circulating pump 34 draws water to circulate washing flue gas from circulating water pool 22.
Further, the first spiral nozzle 32 and the second spiral nozzle 33 are arranged at the top of scrubbing tower 21, for washing Sprinkling water smoke in tower 21, leads footpath pipe 17 and accesses in scrubbing tower 21, water by the first spiral nozzle 32 and the second spiral nozzle 33 with The mode of spraying is sprayed into fully reacts in scrubbing tower 21 with the acidic materials in flue gas, simultaneously because temperature reduction, course of reaction In have condensate liquid precipitation, the acid dissolving of generation will be reacted, and drop into circulating water pool 22.
Further, the bottom of scrubbing tower 21 is connected with circulating water pool 22.
Further, the top of circulating water pool 22 is cylinder, and bottom is inverted cone, and this structure design is conducive to circulation Liquid discharge in pond is clean;The bottom of circulating water pool 22 is provided with sewage draining exit 24 and sour floss hole 23, and it is useless that reaction is produced Liquid is regularly discharged from sewage draining exit, and after the acidity in circulating water pool reaches to a certain degree, concentrated hydrochloric acid is discharged from sour floss hole, It is used to recycle.
Further, the upper end for leading footpath pipe 17 has been sequentially connected with the second straight tube 16, the second elbow 14, the first straight tube 13, first Elbow 12, air-introduced machine 15 and airduct 11, for conveying flue gas, flue gas are sent into scrubbing tower, and flue gas is removed by sack cleaner 5 Airduct 11, air-introduced machine 15, the first elbow 12, the first straight tube 13, the second elbow 14, the second straight tube 16 are sequentially passed through after dirt and is led Footpath pipe 17 enters in scrubbing tower 21, wherein, air-introduced machine 15 is used to reduce the pressure of flue gas, curved so as to flue gas smoothly to be sent into first In first 12.
Further, the upper end of circulating water pool 22 is connected with smoke discharging pipe 41, for the flue gas after demisting to be discharged.
Further, demister 42 and filling pipe 43 are provided with smoke discharging pipe 41, demister is used for carrying out demisting to flue gas Treatment, filling pipe carries out water-refilling operation, is held essentially constant the water level in circulating water pool.
Further, also include:Sack cleaner 5, for carrying out dust removal process to flue gas.
Further, the outlet temperature of heat exchanger is:50 ~ 60 DEG C, temperature is too high may to cause acid voluntarily to be volatilized, and recirculated water Amount is reduced rapidly, needs a large amount of moisturizings;The too low water made in flue gas of temperature is largely condensed and enters recirculated water, causes relieving haperacidity concentration not Greatly, 50 ~ 60 DEG C is optimum temperature range.
Further, the flow of water circulating pump is:10 ~ 20m3/h, flow is used for adjusting the temperature of whole equipment, due to heat exchange Device parameter is certain, and equipment is fixed, and actual flue-gas temperature is finely tuned by adjusting flow, existing by experience and reality The result of field operation show that the flow of water circulating pump is:The outlet temperature of heat exchanger can be maintained 50 ~ 60 during 10 ~ 20m3/h ℃。
By after above-mentioned steps treatment, can effectively remove the chlorion in flue gas, removal efficiency is up to more than 90%, while following The concentration that acid is prepared in ring pond is maximum up to more than 5%.
General principle of the invention, principal character and advantages of the present invention has been shown and described above.The technology of the industry Personnel it should be appreciated that the present invention is not limited to the above embodiments, simply explanation described in above-described embodiment and specification this The principle of invention, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its Equivalent is defined.

Claims (10)

1. a kind of medical wastes incineration high-concentration fume acid-producing apparatus, it is characterised in that including:Gas fume conveying system, flue gas are washed Wash system, circulating cooling system, flue gas emission;The circulating cooling system includes the water circulating pump, the heat exchange that are sequentially connected Device, the first spiral nozzle and the second spiral nozzle;The flue gas washing system is provided with circulating water pool, in the circulating water pool Water does the sour gas that absorbent is used to absorb in flue gas;The water circulating pump is connected with the circulating water pool, the recirculated water Water in pond is used as circulation washings simultaneously.
2. a kind of medical wastes incineration high-concentration fume acid-producing apparatus according to claim 1, it is characterised in that described One spiral nozzle and the second spiral nozzle are arranged at the top of scrubbing tower, lead footpath pipe and access in the scrubbing tower.
3. a kind of medical wastes incineration high-concentration fume acid-producing apparatus according to claim 1 and 2, it is characterised in that institute The bottom for stating scrubbing tower is connected with the circulating water pool.
4. a kind of medical wastes incineration high-concentration fume acid-producing apparatus according to claim 1, it is characterised in that described to follow The top in ring pond is cylinder, and bottom is inverted cone, also, the bottom of the circulating water pool is provided with sewage draining exit and acid discharge Mouthful.
5. a kind of medical wastes incineration high-concentration fume acid-producing apparatus according to claim 2, it is characterised in that described to lead The upper end of footpath pipe has been sequentially connected with the second straight tube, the second elbow, the first straight tube, air-introduced machine and airduct.
6. a kind of medical wastes incineration high-concentration fume acid-producing apparatus according to claim 1, it is characterised in that described to follow The upper end in ring pond is connected with smoke discharging pipe, for the flue gas after demisting to be discharged.
7. a kind of medical wastes incineration high-concentration fume acid-producing apparatus according to claim 6, it is characterised in that the row Demister and filling pipe are provided with smoke pipeline.
8. a kind of medical wastes incineration high-concentration fume acid-producing apparatus according to claim 1, it is characterised in that also wrap Include:Sack cleaner.
9. a kind of medical wastes incineration high-concentration fume acid-producing apparatus according to claim 1, it is characterised in that described to change The outlet temperature of hot device is:50~60℃.
10. a kind of medical wastes incineration high-concentration fume acid-producing apparatus according to claim 1, it is characterised in that described The flow of water circulating pump is:10~20m³/h.
CN201621368629.2U 2016-12-14 2016-12-14 A kind of medical wastes incineration high-concentration fume acid-producing apparatus Active CN206255839U (en)

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CN201621368629.2U CN206255839U (en) 2016-12-14 2016-12-14 A kind of medical wastes incineration high-concentration fume acid-producing apparatus

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CN201621368629.2U CN206255839U (en) 2016-12-14 2016-12-14 A kind of medical wastes incineration high-concentration fume acid-producing apparatus

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106698350A (en) * 2016-12-14 2017-05-24 上海市固体废物处置中心 Equipment and method for making acid from high-concentration flue gas generated during incineration of medical waste

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106698350A (en) * 2016-12-14 2017-05-24 上海市固体废物处置中心 Equipment and method for making acid from high-concentration flue gas generated during incineration of medical waste

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Address after: 201815 2491 Jiading District Road, Shanghai

Patentee after: Shanghai solid waste disposal Co., Ltd.

Address before: 201815 2491 Jiading District Road, Shanghai

Patentee before: Shanghai Solid Waste Management Center

CP01 Change in the name or title of a patent holder