CN207667379U - It is suitble to the activated coke system of garbage-incineration smoke purifying - Google Patents

It is suitble to the activated coke system of garbage-incineration smoke purifying Download PDF

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Publication number
CN207667379U
CN207667379U CN201721561684.8U CN201721561684U CN207667379U CN 207667379 U CN207667379 U CN 207667379U CN 201721561684 U CN201721561684 U CN 201721561684U CN 207667379 U CN207667379 U CN 207667379U
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activated coke
flue gas
adsorption tower
regenerator
garbage
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孟春强
邢德山
吴春华
柴晓琴
张乾
程文煜
左程
延寒
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Guodian Science and Technology Research Institute Co Ltd
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Guodian Science and Technology Research Institute Co Ltd
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Abstract

The utility model provides a kind of activated coke system of suitable garbage-incineration smoke purifying, it include mainly flue gas flue gas adsorption system, regenerative system and activated coke transport system, system is additionally provided with residual neat recovering system, flue gas adsorption system is equipped with two-stage adsorption tower, flue gas after waste incineration is first sent into flue gas adsorption system after residual neat recovering system heat exchange cooling, neat stress after the absorption of two-stage adsorption tower is by smoke stack emission, the activated coke of two-stage adsorption tower discharge and the activated coke newly supplemented are transplanted on regenerator through activated coke transport system, two-stage adsorption tower is respectively fed to after regenerator regenerates, the heat that residual neat recovering system absorbs is as heat source reuse.About 200 DEG C of flue-gas temperatures that boiler tail discharges are dropped to 120 DEG C by the system by waste heat recovery, can meet the suitable reaction temperature of adsorption tower and prevent the excessively high activated coke of temperature from catching fire, and realize heat recovery.

Description

It is suitble to the activated coke system of garbage-incineration smoke purifying
Technical field
The utility model belongs to field of environment engineering, and in particular to a kind of using activated coke as adsorbent and the rubbish of catalyst Incineration flue gas system is, it can be achieved that set of device removes multiple pollutant.
Background technology
With the fast development of China's economic society, urbanization rate and Living consumption are continuously improved, house refuse Yield is also continuously increased.Garbage incineration technology have minimizing, recycling, it is innoxious and can realize calorific value recycle it is excellent Point, can be with a large amount of rubbish of timely processing, while recycling calorific value, realize garbage harmless, recycling treatment.Due to life rubbish Rubbish complicated component will produce secondary pollution, contains soot dust granule object, sour gas in flue gas in combustion(SOx、NOx 、 HCl、HF), organic pollution dioxin and heavy metal(Hg, Pb, Cd etc.).Therefore, to a variety of dirts in flue gas of refuse burning It contaminates object and carries out purification treatment, be highly desirable.
Invention content
It is purified while the multiple pollutant in flue gas of refuse burning to realize, the utility model, which provides, is suitble to waste incineration The activated coke system of gas cleaning.
Technical solution used by the utility model is as follows:
A kind of activated coke system of suitable garbage-incineration smoke purifying includes mainly flue gas adsorption system, flue gas absorption system System, regenerative system, activated coke transport system, the system are additionally provided with residual neat recovering system, and flue gas adsorption system is adsorbed equipped with two-stage Tower, the flue gas after waste incineration are first sent into flue gas adsorption system after residual neat recovering system heat exchange cooling, are inhaled through two-stage adsorption tower Attached neat stress is by smoke stack emission, and the activated coke of two-stage adsorption tower discharge and the activated coke newly supplemented are through activated coke transport system It is transplanted on regenerator, two-stage adsorption tower is respectively fed to after regenerator regenerates;The heat that residual neat recovering system absorbs is as heat source Reuse.
The further design of the utility model is:
Flue gas adsorption system include residual neat recovering system, booster fan, gas approach, primary adsorption tower, connection flue, Secondary absorption tower, exhaust pass and chimney.In flue gas adsorption system, primary adsorption tower passes through secondary canalization string with secondary absorption tower Connection arrangement.
Regenerative system includes regenerator, high-temperature blower, heater, enriched gas outer discharge pipe, cooling blower.
The activated coke transport system includes storage warehouse, 1# conveyers, Double layer rotating valve, Double layer rotating valve, vibrating screen, 2# Conveyer, rotary valve, rotary valve, rotary valve and rotary valve, activated coke transport system form one with adsorption tower and regenerator Weigh stable closed-circuit system.
In flue gas adsorption system, ammonia is injected to gas approach and connecting pipe;In regenerative system, to the tube side of regenerator Inject nitrogen.
Heat exchanger is arranged in residual neat recovering system, and the waste heat of recycling is supplied to the ammonia pipeline of flue gas adsorption system to enter all the way Mouthful, realize ammonia heating;Another way is supplied to the delivery nitrogen pipeline of regenerator, realizes nitrogen temperature.
The utility model has the following advantages that compared with prior art:
The sharpest edges of the activated coke moving bed garbage-incineration smoke purifying technology of the utility model are that can have place simultaneously Multiple pollutant is managed, with current most engineerings using " SNCR denitration+semidry method+dry method+activated carbon injection+sack cleaner " Flue gas purification system is compared, and has following features and advantage:
1)Technological process is short, and floor space is small;
2)During gas cleaning, the pollutants such as SO2, SO3, HCL, HF are present in activated coke micropore with ADSORPTION STATE, without dilute Acid generates, without considering the anti-corrosion of equipment;
3)Operational process does not consume water, does not generate waste water, waste residue;
4)With dedusting function, without configuring special deduster;
5)The activated coke for participating in absorption is significantly larger than the activated carbon for spraying consumption, relies primarily on the pollutant of physical absorption HCL, HF, heavy metal, the clean-up effect of dioxin are more preferable;
6)The SO that wet method is difficult to remove can be removed3, pollutant purification is thorough, and chimney is not necessarily to anti-corrosion;7)It need not be to purification Flue gas heating afterwards, chimney breast are transparent, no plume phenomenon;
7)Byproduct can be recycled, realizes the recycling of Sulphur ressource.
8)About 200 DEG C of flue-gas temperatures that boiler tail discharges are dropped to 120 DEG C by residual neat recovering system, suction can be met It the attached suitable reaction temperature of tower and prevents the excessively high activated coke of temperature from catching fire, and realizes heat recovery.
Description of the drawings:
Fig. 1 is the structural schematic diagram of the utility model.
In figure:101- residual neat recovering systems, 102- booster fans, 103- gas approach, 104- primary adsorption towers, 105- Connection flue, 106- secondary absorption towers, 107- exhaust pass, 108- chimneys, 201- regenerators, 202- high-temperature blowers, 203- add Hot device, the outer discharge pipe of 204- enriched gas, 205- cooling blowers, 301- storage warehouses, 302-1# conveyers, 303- regenerator entrances Double layer rotating valve, 304- regenerators outlet Double layer rotating valve, 305- vibrating screens, 306-2# conveyers, 307- primary adsorption towers enter Mouth rotary valve, 308- secondary absorption tower entrance rotary valves, 309- primary adsorption towers export rotary valve, the outlet of 310- secondary absorption towers Rotary valve.
Specific implementation mode:
The utility model will be further described below in conjunction with the accompanying drawings:
As shown in Figure 1, the system of the activated coke mobile layer purifying flue gas of refuse burning of the utility model, includes mainly flue gas Adsorption system, regenerative system, activated coke transport system and residual neat recovering system.
Flue gas adsorption system includes booster fan 102, gas approach 103, primary adsorption tower 104, connection flue 105, two Grade adsorption tower 106, exhaust pass 107 and chimney 108, purified flue gas are discharged into air.
In flue gas adsorption system, the dust in primary adsorption tower 104 primary attachment SO2, SO3 and flue gas, and tentatively adsorb HCl, HF, heavy metal and dioxin;106 primary attachment HCl, NOX of secondary absorption tower, HF, heavy metal and dioxin, while also can Further increase the purification efficiency of SO2 and SO3;In flue gas adsorption system, ammonia is injected in gas approach 103 and connecting pipe 105 Gas, it is N2 and H2O that reduction reaction, which occurs, by NOX conversion, to realize the purification of NOX.
Sour gas in former flue gas(SOx、NOx 、HCl、HF)When the adsorption reaction occurred in adsorption tower, SO2 is preferential The absorption of other harmful substances matter is adsorbed and inhibited, two-stage adsorption tower step purification is set in the flue gas adsorption system, to realize The high efficiency of flue gas purifies, and primary adsorption tower 104 passes through 105 arranged in series of secondary canalization with secondary absorption tower 106;
Regenerative system includes regenerator 201, high-temperature blower 202, heater 203, the outer discharge pipe 204 of enriched gas, cooling Wind turbine 205, completes the regeneration of activated coke, while releasing the enrichment SO2 flue gases of high concentration, into by-product plant.Again In raw system, nitrogen is injected to the tube side of regenerator.
About 200 DEG C or so the flue-gas temperatures that residual neat recovering system 101 in the present apparatus is used to discharge waste heat boiler tail portion 120 DEG C or so are dropped to, the suitable reaction temperature of adsorption tower can be met and prevents the excessively high activated coke of temperature from catching fire, and can will be recycled Waste heat is used for regenerative system, recycles a part of waste heat.Residual neat recovering system(101)Heat exchanger is set, and the waste heat of recycling carries all the way Supply flue gas adsorption system ammonia line entry, with realize mixed ammonia close to flue gas temperature(About 120 DEG C);All the way It is supplied to the delivery nitrogen pipeline of regenerator, to realize temperature of the temperature for entering nitrogen in regenerator close to activated coke(110 ℃).The former flue gas heat of absorption is used for the heating of the delivery nitrogen into the ammonia and regenerator of flue gas, realizes UTILIZATION OF VESIDUAL HEAT IN.
Activated coke transportation system include storage warehouse 301,1# conveyers 302, Double layer rotating valve 303, Double layer rotating valve 304, Vibrating screen 305,2# conveyers 306, rotary valve 307, rotary valve 308, rotary valve 309, rotary valve 310, with adsorption tower and regeneration Tower forms the closed-circuit system of an equalization stable.
Storage warehouse 301 stores a certain amount of activated coke in activated coke transport system, and reply extraneous factor supplies activated coke Influence, while with regenerator interlock, realize automatic feeding;The activated coke newly supplemented and adsorption tower are discharged 1# conveyers 302 Activated coke be transplanted in regenerator 201;The inlet and outlet of regenerator 201 is provided with Double layer rotating valve 303 and 304, realizes Regenerator and environment are effectively isolated;Regenerator lower part is provided with vibrating screen, and the activated coke powder generated in operational process is sieved It removes, keeping entering the activated coke in adsorption tower has good gas permeability, arranges outside the activated coke powder screened out and is used as fuel; Activated coke after regeneration is transferred to adsorption tower by 2# conveyers 306, is realized the repetition of activated coke, is recycled;In primary adsorption Rotary valve 307,308,309,310 is arranged in the inlet and outlet of tower 103 and secondary absorption tower 105, realizes the effective of adsorption tower and environment Isolation.
In regenerative system, using heating regeneration technology, the hot-air after high-temperature blower 202 heats heater 203 is sent into The bringing-up section of regenerator 201, heating of Activated burnt to 400 DEG C implementation above regenerate;
In regenerative system, activated coke is heated to release the escaping gas of absorption, passes through enriched flue gas discharge line 204 discharges, into by-product plant;
In regenerative system, using air cooling activated coke technique, normal temperature air is sent into regenerator by cooling blower 205 201 cooling section, cooling activated coke are cooled to 150 DEG C hereinafter, repeating, recycling into adsorption tower;
Tthe utility model system is adapted to the characteristics of flue gas of refuse burning, and desulfuration efficiency reaches 99% or more, denitration efficiency Reach 80% or more, de- HCL efficiency reaches 98% or more, removes heavy metal and dioxin efficiency reaches 99% or more.
Meanwhile the system compares traditional " SNCR denitration+semidry method+dry method+activated carbon injection+sack cleaner " mould Formula, the activated coke amount for participating in absorption is big, and good purification is simple in structure, and investment and operating cost are reduced, and depth is belonged to Purification techniques.

Claims (6)

1. a kind of activated coke system of suitable garbage-incineration smoke purifying includes mainly flue gas flue gas adsorption system, regenerative system With activated coke transport system, it is characterized in that:System is additionally provided with residual neat recovering system, and flue gas adsorption system is equipped with two-stage adsorption tower, Flue gas after waste incineration is first sent into flue gas adsorption system after residual neat recovering system heat exchange cooling, after the absorption of two-stage adsorption tower Neat stress by smoke stack emission, the activated coke of two-stage adsorption tower discharge and the activated coke newly supplemented are transferred through activated coke transport system To regenerator, two-stage adsorption tower is respectively fed to after regenerator regenerates, the heat that residual neat recovering system absorbs is as heat source reuse.
2. it is suitble to the activated coke system of garbage-incineration smoke purifying according to claim 1, it is characterized in that:Flue gas adsorption system Booster fan (102), primary adsorption tower (104), connection flue (105), secondary absorption tower (106), goes out gas approach (103) Mouth flue (107) and chimney (108), the primary adsorption tower (104) is with secondary absorption tower (106) by being connected to flue (105) Arranged in series.
3. it is suitble to the activated coke system of garbage-incineration smoke purifying according to claim 2, it is characterized in that:Regenerative system includes Regenerator (201), high-temperature blower (202), heater (203), enriched gas outer discharge pipe (204), cooling blower (205).
4. it is suitble to the activated coke system of garbage-incineration smoke purifying according to claim 2, it is characterized in that:The activated coke is defeated It includes storage warehouse (301), 1# conveyers (302), Double layer rotating valve (303), Double layer rotating valve (304), vibrating screen to send system (305), 2# conveyers (306), rotary valve (307), rotary valve (308), rotary valve (309) and rotary valve (310), activated coke is defeated The closed-circuit system for sending system to form an equalization stable with adsorption tower and regenerator.
5. according to the activated coke system of any suitable garbage-incineration smoke purifyings of claim 1-4, it is characterized in that:Flue gas is inhaled In attached system, ammonia is injected to gas approach (103) and connecting pipe (105);In regenerative system, injected to the tube side of regenerator Nitrogen.
6. it is suitble to the activated coke system of garbage-incineration smoke purifying according to claim 5, it is characterized in that:Residual neat recovering system (101) heat exchanger is set, and the waste heat of recycling is supplied to the ammonia line entry of flue gas adsorption system all the way, realizes ammonia heating; Another way is supplied to the delivery nitrogen pipeline of regenerator, realizes nitrogen temperature.
CN201721561684.8U 2017-11-21 2017-11-21 It is suitble to the activated coke system of garbage-incineration smoke purifying Active CN207667379U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109173711A (en) * 2018-10-07 2019-01-11 张金明 A kind of desulfurizing and denitrifying process
CN110075709A (en) * 2019-03-28 2019-08-02 苏州华加星光环保工程技术有限公司 A kind of telescopic dual chamber integral denitration device and method
CN112403189A (en) * 2020-02-28 2021-02-26 中冶长天国际工程有限责任公司 Flue gas desulfurization and denitrification activated carbon distribution system and distribution method
CN112457892A (en) * 2020-11-30 2021-03-09 南京泽众环保科技有限公司 Coal gas desulfurization system and process method combining fixed bed and moving bed

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109173711A (en) * 2018-10-07 2019-01-11 张金明 A kind of desulfurizing and denitrifying process
CN110075709A (en) * 2019-03-28 2019-08-02 苏州华加星光环保工程技术有限公司 A kind of telescopic dual chamber integral denitration device and method
CN112403189A (en) * 2020-02-28 2021-02-26 中冶长天国际工程有限责任公司 Flue gas desulfurization and denitrification activated carbon distribution system and distribution method
CN112403189B (en) * 2020-02-28 2022-05-03 中冶长天国际工程有限责任公司 Flue gas desulfurization and denitrification activated carbon distribution system and distribution method
CN112457892A (en) * 2020-11-30 2021-03-09 南京泽众环保科技有限公司 Coal gas desulfurization system and process method combining fixed bed and moving bed

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Address after: 210023 No. 10 Wonderland Road, Qixia District, Nanjing City, Jiangsu Province

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Address before: 210023 No. 10 Wonderland Road, Qixia District, Nanjing City, Jiangsu Province

Patentee before: Guodian Science and Technology Research Institute

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