CN2437992Y - Comprehensive tail gas purifying device for refuse incineration - Google Patents
Comprehensive tail gas purifying device for refuse incineration Download PDFInfo
- Publication number
- CN2437992Y CN2437992Y CN 00245490 CN00245490U CN2437992Y CN 2437992 Y CN2437992 Y CN 2437992Y CN 00245490 CN00245490 CN 00245490 CN 00245490 U CN00245490 U CN 00245490U CN 2437992 Y CN2437992 Y CN 2437992Y
- Authority
- CN
- China
- Prior art keywords
- tail gas
- gas
- garbage incinerating
- mixing granulation
- gas purifying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000007787 solid Substances 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000011575 calcium Substances 0.000 claims abstract description 6
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 6
- 239000003463 adsorbent Substances 0.000 claims abstract description 5
- 230000003179 granulation Effects 0.000 claims description 17
- 238000005469 granulation Methods 0.000 claims description 17
- 239000000428 dust Substances 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 9
- 235000019738 Limestone Nutrition 0.000 claims description 4
- 239000006028 limestone Substances 0.000 claims description 4
- 239000003575 carbonaceous material Substances 0.000 claims description 3
- 239000012717 electrostatic precipitator Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 33
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 8
- 238000000746 purification Methods 0.000 abstract description 7
- 238000004056 waste incineration Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005243 fluidization Methods 0.000 abstract description 2
- 239000007921 spray Substances 0.000 abstract description 2
- 239000002253 acid Substances 0.000 abstract 1
- 150000002013 dioxins Chemical class 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 abstract 1
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 5
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 238000006477 desulfuration reaction Methods 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 3
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 3
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 3
- 230000003134 recirculating effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000006298 dechlorination reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 229910001902 chlorine oxide Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
本实用新型公开了一种用于垃圾焚烧尾气全面净化的装置,它是将垃圾焚烧尾气经缩放喷管加速后喷入以钙基脱除剂和吸附剂为床料的循环流化床净化器内并带动床料一起流化,发生气、液、固强烈混合与充分的传热和传质,使尾气中的酸性气体及重金属和二恶英等超细颗粒在传质过程中发生中和反应及被吸附剂吸附。同现有技术相比,本实用新型结构紧凑,占地面积小。使用它工艺步骤简单,净化效果显著,投资运行费用低。
The utility model discloses a device for comprehensively purifying waste incineration tail gas, which sprays the waste incineration tail gas into a circulating fluidized bed purifier with calcium-based removing agent and adsorbent as bed materials after being accelerated through a scaling nozzle It drives the fluidization of the bed materials together, resulting in strong mixing of gas, liquid and solid, and sufficient heat and mass transfer, so that the acid gases, heavy metals and dioxins in the tail gas are neutralized during the mass transfer process. reaction and adsorption by the adsorbent. Compared with the prior art, the utility model has a compact structure and a small occupied area. The process steps of using it are simple, the purification effect is remarkable, and the investment and operation cost is low.
Description
The utility model relates to combustion furnace tail gas clean-up and dedusting technology field, relates in particular to the adsorbing and removing device of dry desulfurization, dechlorination and fine grained, heavy metal, the dioxin etc. of garbage incinerating tail gas.
Atmosphere pollution is the focus of world many countries environmental protection always, and the flue gas desulfurization technique that various countries successively develop has reached kind more than 200.But, can commercial Application have only kind more than ten.Tail gas for the waste incineration generation, except that containing conventional coal-fired flue-gas pollutant such as nitrogen oxide, oxysulfide, fine grained and heavy metal, also contain harmful substances such as more substantial simple substance chlorine, hydrogen chloride, dioxin, conventional desulfurization and dedusting technology can not satisfy the strict purification of garbage incinerating tail gas requirement.Existing external garbage incinerating tail gas purification techniques mostly adopts wet method, as U.S. Pat 4789532 are the sour gas that adopt in the conventional spray lime slurry absorption tail gas, as sulfur dioxide, hydrogen chloride, simple substance chlorine etc., behind reactor, connect the sack cleaner dedusting then.Though said apparatus can be removed sour gas and flying dust in the tail gas, exist equipment investment and operating cost height, floor space big, can not effectively remove heavy metal and the fine grain problem of dioxin that waste incineration produces.
At above-mentioned problems of the prior art, the purpose of this utility model provides a kind ofly invests that operating cost is low, floor space is little, is used for the device of comprehensive garbage incinerating tail gas purifying.Use this device, can make processing step simply, not only the effect of sour gas and flying dust is remarkable in the cleaning of off-gas, more outstanding is that it can effectively remove heavy metal and the dioxin fine grained that waste incineration produces.
In order to reach above-mentioned goal of the invention, the technical solution of the utility model realizes as follows: the device that is used for comprehensive garbage incinerating tail gas purifying, it comprises with the calcium base and removes the fluid bed clarifier that agent and adsorbent are the bed material, with the gas-solid separator that high efficiency cyclonic dust collector, electrostatic precipitator, sack cleaner or their combinations are formed, have the surge bunker and the mixing granulation device of feed and discharge device.Its design feature is: the arrival end of described fluid bed clarifier is provided with de Laval noz(zle) and the bed material inlet that tail gas is quickened.The de Laval noz(zle) other end and garbage incinerating tail gas inlet join.Bed material inlet joins with the outlet of mixing granulation device.The mixing granulation device is equipped with a plurality of batching inlets and joins with batcher.The batcher other end and surge bunker join.Surge bunker top and side top are equipped with gas-solid separator and discharge machine.Gas-solid separator top and side top are equipped with clean gas outlet and horizontal connection tube.The port of export of the horizontal connection tube other end and fluid bed clarifier joins.
According to above-mentioned technical scheme, a plurality of batching inlets of described mixing granulation device are admission port, active carbon material inlet and pulverized limestone material inlet; Thin, the thick hyperbola pipe in two ends in the middle of the shape of described de Laval noz(zle) is.
The utility model compared with prior art has the following advantages and good effect:
(1) on conventional dry recirculating fluidized bed flue gases purification basis, characteristics and purification requirement according to the garbage incinerating tail gas pollutant, organically combine integrated by recirculating fluidized bed clarifier, gas-solid separator and mixing granulation device, utilize the calcium base to remove agent and react the sour gas of removing in the tail gas, add adsorbents such as flying dust and active carbon simultaneously and effectively remove heavy metal and dioxin.Not only technology is simple, and compact equipment is reduced investment outlay and floor space, and good tail gas purification effect, satisfies environmental requirement fully, realizes the garbage incinerating tail gas qualified discharge.
(2) use the mixing granulation device to carry out granulation, can be according to exhaust temperature, pollutant levels and air velocity, in time regulate the addition of fresh material, adding speed, parameters such as granulation size, formation has the particle that enriches activated adoption position and pore structure, helps the optimum state and the best purification efficient of assurance system operation, improve the utilization rate of additive simultaneously, reduce its operating cost.
(3) in removing the process of pollutant, the bed material keeps the relatively dry state, has effectively avoided corrosive pipeline and blockage problem in the wet cleaning system.
(4) owing to adopt dry-type circulating fluidized bed tail gas clean-up technology, the required moisture of system is few, and product is dry state, has reduced water consumption, has avoided the water pollution problems in the wet method, and has reduced the processing cost of product.
The utility model is described in further detail below in conjunction with accompanying drawing and concrete embodiment.
Accompanying drawing is the utility model catenation principle figure.
Referring to accompanying drawing, from the garbage incinerating tail gas that combustion apparatus comes out, by gas inlet 13,, two ends thick hyperbola pipe thin through the centre is after de Laval noz(zle) 1 quickens, to enter fluid bed clarifier 2.Tail gas drives in fluid bed clarifier 2 and removes the bed that agent and flying dust, acticarbon form by the calcium base and expect fluidisation together, and fluidizing velocity fully conducts heat and mass transfer simultaneously up to the 5-10 meter per second.In this process, sour gas such as sulfur dioxide, sulfur trioxide, hydrogen chloride, simple substance chlorine and nitrogen oxide etc. and calcium base alkali compounds generation neutralization reaction in the tail gas generate solid calcium salt.Simultaneously ultra-fine grains such as heavy metal in the tail gas and dioxin are in that to expect to be adsorbed in the abundant mixed process agent flying dust and active carbon adsorbed and remove with bed.Solid particle after reaction and the absorption enters gas-solid separator 4 with air-flow through horizontal transition pipe 3, in gas-solid separator 4, use deduster, this deduster can be that sack cleaner, cyclone dust collectors, electrostatic precipitator or their organic assembling body realize that gas and the efficient of solid particle separate, dust removal efficiency is up to 99.9%, go forward side by side one-step removal acidic gas in flue gas, dioxin and heavy metal.The utility model desulfuration efficiency can reach more than 95%, and dechlorination efficiency is greater than 97%, and heavy metal and dioxin removal efficiency are all greater than 90%.Purified gas is discharged into chimney by clean gas outlet 14 through air-introduced machine.Gas-solid separator 4 removes the solid particle that gets off, complete reaction removes the agent particle and also do not have the agent particle that removes of complete reaction to enter surge bunker 5.Solid material in the surge bunker 5 enters mixing granulation device 8 by batcher 7 more than 90%, and all the other materials that do not circulate are discharged grey storehouse by discharge machine 6 and further handled.Enter in the mixing granulation device 8 recycle stock with from the pulverized limestone of pulverized limestone material inlet 9, the active carbon of active carbon material inlet 10 and the abundant mixing granulation of water of admission port 11, particle size range is 200-300um, maximum is no more than 500um.Mixed material after the granulation is as the bed material of recirculating fluidized bed clarifier 2, and enters in the fluid bed clarifier 2 via bed material inlet 12 by mixing granulation device 8 and to recycle.
Claims (4)
1, a kind of device that is used for comprehensive garbage incinerating tail gas purifying, it comprises with the calcium base and removes the fluid bed clarifier (2) that agent and adsorbent are the bed material, gas-solid separator (4), surge bunker (5) and mixing granulation device (8), it is characterized in that: the arrival end of described fluid bed clarifier (2) is provided with de Laval noz(zle) (1) and the bed material inlet (12) that tail gas is quickened, de Laval noz(zle) (1) other end and garbage incinerating tail gas inlet (13) join, bed material inlet (12) joins with the outlet of mixing granulation device (8), mixing granulation device (8) is equipped with a plurality of batching inlets and joins with batcher (7), batcher (7) other end and surge bunker (5) join, surge bunker (5) top and side top are equipped with gas-solid separator (4) and discharge machine (6), gas-solid separator (4) top and side top are equipped with clean gas outlet (14) and horizontal connection tube (3), and the port of export of horizontal connection tube (3) other end and fluid bed clarifier (2) joins.
2, according to the described device that is used for comprehensive garbage incinerating tail gas purifying of claim 1, it is characterized in that: be provided with deduster between described horizontal connection tube (3) and gas-solid separator (4) junction, this deduster can be sack cleaner, cyclone dust collectors, electrostatic precipitator or their organic assembling body; Described clean gas outlet is provided with air-introduced machine in (14).
3, according to the described device that is used for comprehensive garbage incinerating tail gas purifying of claim 2, it is characterized in that: a plurality of batching inlets of described mixing granulation device (8) are admission port (11), active carbon material inlet (10) and pulverized limestone material inlet (9)
4, according to the described device that is used for comprehensive garbage incinerating tail gas purifying of claim 3, it is characterized in that: thin, the thick hyperbola pipe in two ends in the middle of the shape of described de Laval noz(zle) (1) is.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00245490 CN2437992Y (en) | 2000-08-22 | 2000-08-22 | Comprehensive tail gas purifying device for refuse incineration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00245490 CN2437992Y (en) | 2000-08-22 | 2000-08-22 | Comprehensive tail gas purifying device for refuse incineration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2437992Y true CN2437992Y (en) | 2001-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00245490 Expired - Fee Related CN2437992Y (en) | 2000-08-22 | 2000-08-22 | Comprehensive tail gas purifying device for refuse incineration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2437992Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513015A (en) * | 2011-12-14 | 2012-06-27 | 济宁市无界科技有限公司 | Mixing device for lithium battery positive electrode or negative electrode preparation materials |
| CN105823062A (en) * | 2016-04-27 | 2016-08-03 | 杭州绿能环保发电有限公司 | Desulfurization-deacidification system of clean incineration device for household garbage |
| CN106500105A (en) * | 2016-09-30 | 2017-03-15 | 江西东江环保技术有限公司 | The incineration treatment method of waste |
| CN113862607A (en) * | 2021-10-11 | 2021-12-31 | 昀昊精密模具五金(深圳)有限公司 | Plasma treatment device for surface of die part |
-
2000
- 2000-08-22 CN CN 00245490 patent/CN2437992Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513015A (en) * | 2011-12-14 | 2012-06-27 | 济宁市无界科技有限公司 | Mixing device for lithium battery positive electrode or negative electrode preparation materials |
| CN102513015B (en) * | 2011-12-14 | 2014-04-09 | 济宁市无界科技有限公司 | Mixing device for lithium battery positive electrode or negative electrode preparation materials |
| CN105823062A (en) * | 2016-04-27 | 2016-08-03 | 杭州绿能环保发电有限公司 | Desulfurization-deacidification system of clean incineration device for household garbage |
| CN105823062B (en) * | 2016-04-27 | 2018-03-23 | 杭州绿能环保发电有限公司 | A kind of desulfurization deacidification system of house refuse cleaning incinerator |
| CN106500105A (en) * | 2016-09-30 | 2017-03-15 | 江西东江环保技术有限公司 | The incineration treatment method of waste |
| CN113862607A (en) * | 2021-10-11 | 2021-12-31 | 昀昊精密模具五金(深圳)有限公司 | Plasma treatment device for surface of die part |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: 2907, TOWER A, QINGHUATONGFANGKEJI PLAZA, BEIJING Free format text: FORMER NAME OR ADDRESS: 2670 MAILBOX, BEIJING CITY 100084 YANFA CENTER |
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| CP03 | Change of name, title or address |
Patentee address after: 100083 Beijing Tsinghua Tongfang science and Technology Square A block 2907 Patentee address before: 100084 Beijing 2670 mailbox research and Development Center |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |