CN1426830A - Method of integrated dust removal and desulfur of smoke and its equipment - Google Patents
Method of integrated dust removal and desulfur of smoke and its equipment Download PDFInfo
- Publication number
- CN1426830A CN1426830A CN 01144578 CN01144578A CN1426830A CN 1426830 A CN1426830 A CN 1426830A CN 01144578 CN01144578 CN 01144578 CN 01144578 A CN01144578 A CN 01144578A CN 1426830 A CN1426830 A CN 1426830A
- Authority
- CN
- China
- Prior art keywords
- storehouse
- flue
- ash
- mixing granulation
- reaction
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- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000428 dust Substances 0.000 title claims abstract description 12
- 239000000779 smoke Substances 0.000 title claims description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000003054 catalyst Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000001179 sorption measurement Methods 0.000 claims abstract description 3
- 239000003546 flue gas Substances 0.000 claims description 27
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 26
- 238000005469 granulation Methods 0.000 claims description 26
- 230000003179 granulation Effects 0.000 claims description 26
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 18
- 238000006477 desulfuration reaction Methods 0.000 claims description 15
- 230000023556 desulfurization Effects 0.000 claims description 15
- 230000008676 import Effects 0.000 claims description 15
- 239000011246 composite particle Substances 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 11
- 239000011230 binding agent Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 239000011593 sulfur Substances 0.000 claims description 4
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 3
- 230000004913 activation Effects 0.000 claims description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 3
- 239000010452 phosphate Substances 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- -1 and Substances 0.000 claims description 2
- 230000002349 favourable effect Effects 0.000 claims description 2
- 210000000498 stratum granulosum Anatomy 0.000 claims description 2
- 239000003517 fume Substances 0.000 abstract 3
- 230000003213 activating effect Effects 0.000 abstract 1
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 239000008187 granular material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
A process for dedusting and desulfurizing fume at the same time includes such steps as granulating the mixture of catalyst, desulfurizing agent and water-bearing agent, moistening and activating by high-temp. steam, reaction and adsorption in fume and pre-reacting chamber, entering bag-type deduster along with fume to generate a granule layer on the filter material, further removing dust and adsorbing SO2, and feeding the dust in ash cabin back to the circulating ash cabin for cyclic use. Its advantages are high efficiency, and synchronization of dedusting with desulfurizing.
Description
Technical field
The invention discloses a kind of flue-gas dust-removing and desulfurization integral method and realize the device of this method, belong to the flue gases purification field.
Background technology
Flue gas ash removal is two emphasis aspects that control environment and pollute with removing sulfur dioxide.But at present in the prior art dedusting and desulfur technology often by two independently system bear, though the technology of desulphurizing and dust-removing integral also has many bibliographical informations at present, as " the metallurgical energy " 2000 the 6th interim " development and the application of boiler dusting desulfurization double-purifying system ", but its practicality and technical limitation are clearly.Reason is, one, efficiency of dust collection are difficult to guarantee, and be particularly lower to fine grain capture rate; Its two, system's operational reliability of above-mentioned desulphurizing and dust-removing integral technology is relatively poor, many problems come out and but are difficult to be resolved well; Its three, the coordinated operation of above-mentioned desulphurization system and dust pelletizing system is difficult to realize.Above problem is the key factor of restriction desulphurizing and dust-removing integral technical development.
Summary of the invention
Problem at above-mentioned prior art situation and existence, technical problem to be solved by this invention provides a kind of flue-gas dust-removing and desulfurization integral method and device thereof, recycling of operation characteristic by making full use of sack cleaner and compound additive, when effective raising sack cleaner is to fine grain capture rate, finish the desulfurizing function of flue gas, thereby realize dedusting and desulphurization integrated.
Technical scheme of the present invention realizes as follows:
A kind of flue-gas dust-removing and desulfurization integral method, the steps include: 1) with the mixing granulation device catalyst, desulfurizing agent and water binding agent mixing granulation are formed composite particles, and, spray into flue by Venturi tube with behind the high-temperature steam humidification activation, enter sack cleaner with flue gas; The composite particles that will have desulfurization and absorption fine grained function is by reaction and absorption in flue gas, pre-reaction storehouse, entering sack cleaner at last makes filter material surface form stratum granulosum, and, realize simultaneously that reaction to sulfur dioxide in flue gas removes and to fine grain adsorbing and removing once more to sulfur dioxide with fine grained removes and adsorption reaction.2) the filter material surface cast is recycled to the circulating ash storehouse from the dust that is advanced into grey storehouse, realizes recycling of composite particles.3) make circulating ash storehouse and mixing granulation device realize alternate run by control system, its running time and operation are determined according to factors such as amount of sulfur contenting in smoke, dust concentrations at interval.
The catalyst main component that adds in the mixing granulation device is for having desulfurization, adsorbing iron ash; The water binding agent main component that adds in the mixing granulation device keeps uniform temperature, the phosphate that favourable desulphurization reaction carries out for making the composite particles that sprays in the flue; The desulfurizing agent main component that adds in the mixing granulation device is a calcium oxide.
Realize the device of flue-gas dust-removing and desulfurization integral method, it comprises the mixing granulation device, belt conveyor, compound storehouse, the circulating ash storehouse, sack cleaner and Hui Cang, its design feature is, be equipped with catalyst inlet on the mixing granulation device, the desulfurizing agent import, water binding agent import and high-temperature steam import, mixing granulation device bottom open end is corresponding with the belt conveyer tail end, the belt conveyer top is corresponding with compound storehouse entrance location, compound storehouse links to each other with the ash feeding pipe road with the bottom end opening in circulating ash storehouse, the ash feeding pipe road port of export is provided with the three way type Venturi tube of joining with flue, and the Venturi tube other end is connected with atomizer one end.The other end of atomizer links to each other with grey storehouse and is connected with waterpipe, and grey storehouse bottom end opening inserts the ash returning tube road, and ash returning tube road and the import of circulating ash storehouse are joined, and the upper end of sack cleaner is provided with the flue gas comb.
Wherein the bottom of sack cleaner is set up and can be increased composite particles and sulfur dioxide in flue gas, fine grained and remove pre-reaction storehouse with the reaction time.
The present invention has realized dedusting and desulphurization integrated owing to adopt composite particles that catalyst, desulfurizing agent and water binding agent mixing granulation form that sulfur in smoke and fine grained are adsorbed simultaneously and remove.Simultaneously set up the pre-reaction storehouse, increased composite particles and sulfur dioxide in flue gas, fine grain removing and the reaction time, improved sulfur dioxide and fine grain removal efficiency, realized the up to standard and clean emission of flue gas in the sack cleaner bottom.Method of the present invention, technology is simple, easy to operate.Apparatus structure compactness, the cost of realizing this method is low, resistance is little, safe and reliable to operation.Very easily promote the use of and can transform existing apparatus.
Description of drawings
Accompanying drawing is the structure principle chart of apparatus of the present invention.
The specific embodiment
Method of the present invention is narrated in this document technology contents, and scheme is identical, repeats no more.
Referring to accompanying drawing, the device of implementing the inventive method comprises mixing granulation device 4, belt conveyor 5, compound storehouse 6, circulating ash storehouse 12, sack cleaner 9 and the pre-reaction storehouse 17 and the grey storehouse 10 that are connected with its underpart, wherein be equipped with catalyst inlet 1 on the mixing granulation device 4, desulfurizing agent import 2, water binding agent import 3 and high-temperature steam import 15, mixing granulation device 4 bottom open end are corresponding with belt conveyer 5 tail ends, belt conveyer 5 tops are corresponding with compound storehouse 6 entrance location, compound storehouse 6 links to each other with ash feeding pipe road 7 with the bottom end opening in circulating ash storehouse 12, ash feeding pipe road 7 ports of export are provided with the three way type Venturi tube 18 of joining with flue 13, and Venturi tube 18 other ends are connected with atomizer 8 one ends.The other end of atomizer 8 links to each other with grey storehouse 10 and is connected with waterpipe 16, and grey storehouse 10 bottom end openings insert ash returning tube road 11, and ash returning tube road 11 joins with 12 imports of circulating ash storehouse, and the upper end of sack cleaner 9 is provided with flue gas comb 14.
When using this device, iron ash is by catalyst inlet 1, calcium oxide is by desulfurizing agent import 2, phosphate is by water binding agent import 3, high-temperature steam enters mixing granulation device 4 respectively by high-temperature steam import 15, composite particles after granulation is finished is delivered to the compound storehouse 6 of composite particles material by belt conveyor 5, then enter ash feeding pipe road 7, spray in the boiler smoke pipeline 13 by venturi nozzle 18, enter in the pre-reaction storehouse 17, the flue gas that carries particle then enters in the sack cleaner 9, when above-mentioned utensil moves, circulating ash storehouse 12 is in closed condition, after operation a period of time, close mixing granulation device 4, restart circulating ash storehouse 12, waterpipe 16, atomizer 8, filter material surface is come off and make the dust that enters grey storehouse 10 be recycled to circulating ash storehouse 12 by ash returning tube road 11, enter in the boiler smoke pipeline 13 via ash feeding pipe road 7 again, enter pre-reaction storehouse 17 and sack cleaner 9 respectively after then being atomized the water droplet humidification activation of device 8 ejection.Alternate run is realized by control system in mixing granulation device 4 and circulating ash storehouse 12, and its running time and operation are specifically determined according to factors such as amount of sulfur contenting in smoke, dust concentrations at interval.
Claims (6)
1. flue-gas dust-removing and desulfurization integral method, the steps include: 1) with the mixing granulation device catalyst, desulfurizing agent and water binding agent mixing granulation are formed composite particles, and, spray into flue by Venturi tube with behind the high-temperature steam humidification activation, enter sack cleaner with flue gas; The composite particles that will have desulfurization and absorption fine grained function is by reaction and absorption in flue gas, pre-reaction storehouse, entering sack cleaner at last makes filter material surface form stratum granulosum, and, realize simultaneously that reaction to sulfur dioxide in flue gas removes and to fine grain adsorbing and removing once more to sulfur dioxide with fine grained removes and adsorption reaction; 2) filter material surface is come off and the dust that is advanced into grey storehouse certainly is recycled to the circulating ash storehouse, realize recycling of composite particles; 3) make circulating ash storehouse and mixing granulation device realize alternate run by control system, its running time and operation are determined according to factors such as amount of sulfur contenting in smoke, dust concentrations at interval.
2. according to the described a kind of flue-gas dust-removing and desulfurization integral method of claim 1, it is characterized in that: the catalyst main component that adds in the mixing granulation device is to have desulfurization, adsorbing iron ash.
3. according to the described a kind of flue-gas dust-removing and desulfurization integral method of claim 1, it is characterized in that: the water binding agent main component that adds in the mixing granulation device keeps uniform temperature, the phosphate that favourable desulphurization reaction carries out for making the composite particles that sprays in the flue.
4. according to the described a kind of flue-gas dust-removing and desulfurization integral method of claim 1, it is characterized in that: the desulfurizing agent main component that adds in the mixing granulation device is a calcium oxide.
5. realize the device of flue-gas dust-removing and desulfurization integral method according to claim 1, it comprises mixing granulation device (4), belt conveyor (5), compound storehouse (6), circulating ash storehouse (12), sack cleaner (9) and grey storehouse (10), it is characterized in that: be equipped with catalyst inlet (1) on the described mixing granulation device (4), desulfurizing agent import (2), water binding agent import (3) and high-temperature steam import (15), mixing granulation device (4) bottom open end is corresponding with belt conveyer (5) tail end, belt conveyer (5) top is corresponding with compound storehouse (6) entrance location, compound storehouse (6) links to each other with ash feeding pipe road (7) with the bottom end opening of circulating ash storehouse (12), ash feeding pipe road (7) port of export is provided with the three way type Venturi tube (18) of joining with flue (13), Venturi tube (18) other end is connected with atomizer (8) one ends, the other end of atomizer (8) links to each other with Hui Cang (10) and is connected with waterpipe (16), ash storehouse (10) bottom end opening inserts ash returning tube road (11), ash returning tube road (11) joins with circulating ash storehouse (12) import, and the upper end of sack cleaner (9) is provided with flue gas comb (14).
6. according to the device of the described flue-gas dust-removing and desulfurization integral method of claim 5, it is characterized in that: described sack cleaner (9) bottom is set up can increase composite particles and sulfur dioxide in flue gas, the fine grain pre-reaction storehouse (17) that removes with the reaction time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011445785A CN1190256C (en) | 2001-12-21 | 2001-12-21 | Method of integrated dust removal and desulfur of smoke and its equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011445785A CN1190256C (en) | 2001-12-21 | 2001-12-21 | Method of integrated dust removal and desulfur of smoke and its equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1426830A true CN1426830A (en) | 2003-07-02 |
| CN1190256C CN1190256C (en) | 2005-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011445785A Expired - Lifetime CN1190256C (en) | 2001-12-21 | 2001-12-21 | Method of integrated dust removal and desulfur of smoke and its equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1190256C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100409924C (en) * | 2006-06-13 | 2008-08-13 | 冯之军 | Coal-fired smoke boiler purifier and purification |
| CN105771578A (en) * | 2016-04-03 | 2016-07-20 | 西南科技大学 | Integration technology for raw material processing and smoke desulfurizing |
| CN107511004A (en) * | 2017-10-13 | 2017-12-26 | 云南省烟草公司保山市公司 | Circulation dust collector |
| CN109092000A (en) * | 2018-09-26 | 2018-12-28 | 上海交通大学 | A kind of method of multi-stage absorption flue gas pollutant trapping system and its purifying smoke |
| CN112807985A (en) * | 2021-02-03 | 2021-05-18 | 陕西龙门钢铁有限责任公司 | Device for accelerating ash discharge of desulfurization dust removal ash bin |
| CN113230875A (en) * | 2021-03-04 | 2021-08-10 | 昆明理工大学 | Bayer process red mud dry method for removing SO in copper smelting high-temperature flue gas3Method and apparatus |
-
2001
- 2001-12-21 CN CNB011445785A patent/CN1190256C/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100409924C (en) * | 2006-06-13 | 2008-08-13 | 冯之军 | Coal-fired smoke boiler purifier and purification |
| CN105771578A (en) * | 2016-04-03 | 2016-07-20 | 西南科技大学 | Integration technology for raw material processing and smoke desulfurizing |
| CN107511004A (en) * | 2017-10-13 | 2017-12-26 | 云南省烟草公司保山市公司 | Circulation dust collector |
| CN109092000A (en) * | 2018-09-26 | 2018-12-28 | 上海交通大学 | A kind of method of multi-stage absorption flue gas pollutant trapping system and its purifying smoke |
| CN112807985A (en) * | 2021-02-03 | 2021-05-18 | 陕西龙门钢铁有限责任公司 | Device for accelerating ash discharge of desulfurization dust removal ash bin |
| CN113230875A (en) * | 2021-03-04 | 2021-08-10 | 昆明理工大学 | Bayer process red mud dry method for removing SO in copper smelting high-temperature flue gas3Method and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1190256C (en) | 2005-02-23 |
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Owner name: QINGHUA UNIVERSITY; TONGFANG CO., LTD. Free format text: FORMER NAME OR ADDRESS: QINGHUA UNIVERSITY; TSINGHUA TONGFANG CO., LTD. |
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Address after: 100083 Beijing Tsinghua Tongfang science and Technology Square A block 2907 Co-patentee after: Tongfang Co., Ltd. Patentee after: Tsinghua University Address before: 100083 Beijing Tsinghua Tongfang science and Technology Square A block 2907 Co-patentee before: Qinghua Tongfang Co., Ltd. Patentee before: Tsinghua University |
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Owner name: QINGHUA UNIVERSITY; TONGFANG ENVIRONMENT CO. Free format text: FORMER NAME OR ADDRESS: QINGHUA UNIVERSITY; TONGFANG CO., LTD. |
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Address after: Beijing Tsinghua Tongfang science and Technology Square, block A, 2907, post code: 100083 Co-patentee after: Tongfang Environment Co., Ltd. Patentee after: Tsinghua University Address before: Beijing Tsinghua Tongfang science and Technology Square, block A, 2907, post code: 100083 Co-patentee before: Tongfang Co., Ltd. Patentee before: Tsinghua University |
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Granted publication date: 20050223 |
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