CN207871900U - A kind of flue-gas dust-removing and desulfurization purification system - Google Patents
A kind of flue-gas dust-removing and desulfurization purification system Download PDFInfo
- Publication number
- CN207871900U CN207871900U CN201820074846.3U CN201820074846U CN207871900U CN 207871900 U CN207871900 U CN 207871900U CN 201820074846 U CN201820074846 U CN 201820074846U CN 207871900 U CN207871900 U CN 207871900U
- Authority
- CN
- China
- Prior art keywords
- slurries
- flue
- spray
- flue gas
- desulfurization
- 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
- 239000003546 flue gas Substances 0.000 title claims abstract description 62
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 34
- 230000023556 desulfurization Effects 0.000 title claims abstract description 30
- 238000000746 purification Methods 0.000 title claims abstract description 22
- 239000002002 slurry Substances 0.000 claims abstract description 89
- 239000007921 spray Substances 0.000 claims abstract description 35
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 29
- 238000011084 recovery Methods 0.000 claims abstract description 21
- 235000019738 Limestone Nutrition 0.000 claims abstract description 14
- 239000006028 limestone Substances 0.000 claims abstract description 14
- 239000006227 byproduct Substances 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 4
- 239000006228 supernatant Substances 0.000 claims abstract description 4
- 239000003517 fume Substances 0.000 claims description 21
- 239000000779 smoke Substances 0.000 claims description 13
- 239000000428 dust Substances 0.000 claims description 8
- 238000004537 pulping Methods 0.000 claims description 8
- 238000001179 sorption measurement Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000005367 electrostatic precipitation Methods 0.000 claims description 6
- 239000005864 Sulphur Substances 0.000 claims description 5
- 235000019504 cigarettes Nutrition 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 10
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 8
- 238000001914 filtration Methods 0.000 description 7
- 239000010440 gypsum Substances 0.000 description 4
- 229910052602 gypsum Inorganic materials 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 230000000505 pernicious effect Effects 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a kind of flue-gas dust-removing and desulfurization purification systems.A kind of flue-gas dust-removing and desulfurization purification system includes flue gas pretreatment system, spray desufurization system, slurries feed system and slurries recovery system；Flue gas pretreatment system, slurries feed system and slurries recovery system are connect with spray desufurization system, flue gas pretreatment system enters the flue gas of spray desufurization system for processing, slurries feed system provides desulfurizing agent lime stone slurry for spray desufurization system, and slurries recovery system is used to recycle the by-product slurries generated in spray desufurization system sweetening process；In addition slurries recovery system is also connect with slurries feed system simultaneously, and the supernatant of gained after processing is transmitted to slurries feed system and utilized again by slurries recovery system.The utility model integrates flue gas ash removal, desulfurization and purification, has the characteristics that simple in structure, easy to maintain, desulfurization effect is efficient, can greatly reduce desulphurization cost.
Description
Technical field
The utility model is related to Air Pollution Control fields, more particularly to a kind of flue-gas dust-removing and desulfurization purification system.
Background technology
China is maximum coal production state and country of consumption in the world, and in the world it is only it is several with coal for main energy
One of the country in source.The characteristics of coal in China is ash content height, and sulfur content is big, therefore is discharged after thermal power generation and boiler combustion
Flue gas in contain the pernicious gases such as a large amount of dust and sulfur dioxide (SO2), the environmental problem caused by these pernicious gases
Getting worse.National environmental protection portion issues《Fossil-fuel power plant atmospheric pollutant emission standard》(GB13223-2011) and《Environment
Air quality standard》(GB3095-2012), clearly the emission limit of the pernicious gases such as SO2, particulate matter is provided, is increased
To the protection of environment.
With the raising that SO2, granular material discharged standard require, flue-gas purification equipment performance is proposed tightened up
It is required that but current Refining Equipmeut for Desulfuration in Gas desulfurization effect it is poor, complicated, sorbent utilization is not high, and desulphurization cost is high
It is expensive.Such as Chinese invention patent CN106110866A (application numbers：201610643747.8) a kind of flue gas desulphurization system is disclosed,
Although can also achieve the purpose that flue gas desulfurization, which pre-processes without reference to former flue gas, desulfurization can be made to imitate
Fruit is relatively poor, and desulfurizing agent and desulfurizing byproduct cannot be utilized efficiently, to which desulphurization cost can also greatly increase.
Utility model content
Integrating flue gas ash removal, desulfurization and purification, simple in structure, desulfurization the purpose of this utility model is to provide a kind of
Agent utilization rate is high, and operation is convenient, the low high-efficiency flue gas dust-removal desulfurization purification system of desulphurization cost, to overcome the prior art not
Foot.
To solve the above problems, the utility model adopts the following technical solution：
A kind of flue-gas dust-removing and desulfurization purification system includes flue gas pretreatment system, spray desufurization system, slurries feed system
With slurries recovery system, the flue gas pretreatment system, slurries feed system and slurries recovery system with spray sulphur removal system
System connects, and in addition slurries recovery system is also connect with slurries feed system simultaneously.
Further, the spray desufurization system includes fume desulfurizing tower and circulating pump；The flue gas desulfurization tower top
Portion is equipped with exhaust pipe, and adsorption layer, demister, spray thrower, smoke inlet and slurry are equipped with successively from top to bottom inside fume desulfurizing tower
Liquid storage tank；The slurry tank is divided into upper layer and lower layer, and circulating pump water inlet end is connected to slurry tank lower layer, water outlet and spray
Device is connected to.
Further, the sorbing material internal layer of the adsorption layer is activated carbon fibre, for removing the taste in neat stress
Road.
Further, the spray thrower is made of multiple 360 ° of auto-rotating spray heads, is conducive to desulfurizing agent and sulfur-bearing cigarette
Gas comes into full contact with, and improves desulfuration efficiency.
Further, the demister is woven wire or baffle plate type structure, for intercepting the liquid taken away with air-flow
Drop, makes it flow back into fume desulfurizing tower.
Further, the flue gas pretreatment system include sequentially connected primary filtrating smoke dust case, electrostatic precipitation case,
Wind turbine and flue gas flow meter are connect with the smoke inlet on fume desulfurizing tower by flue, pass through physical filtering and electrostatic
The mode of absorption purifies former flue gas.
Further, the slurries feed system includes sequentially connected limestone powder bin, batcher, pulping tank, slurry
The outlet of liquid pool and supply pump, supply pump is connected to slurry tank lower layer.
Further, the batcher is weighing spiral feeder, can effectively control the amount into agstone.
Further, the slurries recovery system includes sequentially connected discharge pump, surge tank, dewaterer and transmission
Pump, discharge pump intake are connect with slurry tank upper layer, and transmission pump discharge is connect with pulping tank.
According to the utility model, a kind of operating procedure of flue-gas dust-removing and desulfurization purification system, including it is as follows：Slurries supply system
Lime stone slurry in slurry pool is transported in spray desufurization system under the slurry tank of fume desulfurizing tower by the supply pump in system
In layer, then by circulating pump lime stone slurry is extracted into spray thrower.Meanwhile former flue gas wind turbine in flue gas pretreatment system
Pass through primary dust removal and filtration case and electrostatic precipitation case under power successively, flue is equipped with flue gas flow meter and enters for controlling
The exhaust gas volumn of fume desulfurizing tower, flue gas are entered by smoke inlet in fume desulfurizing tower, are filled with the lime stone slurry ejected
Divide mixing.The flue gas and by-product slurries being purified after reaction, by-product slurries return on the slurry tank of fume desulfurizing tower
In layer, and supernatant returns to the pulping tank in slurries feed system again after filtering by discharge pump discharge in slurries recovery system
Gypsum product is made in secondary utilization, gypsum after dehydration；Purified flue gas then ascends into demisting in demister, net after demisting
Flue gas flows through in emission by exhaust pipe to air of the adsorption layer by flue gas desulfurization top of tower.
The beneficial effects of the utility model are：
1, thick, particle dust in flue gas are filtered for multiple times by way of physical filtering and Electrostatic Absorption, flue gas is made to obtain
Preferable purification has been arrived, desulfurization effect is enhanced；
2, spray thrower is connected to by pipeline with slurry tank, and desulfurizing agent cycle in fume desulfurizing tower flows, and reduces de-
Sulphur cost, improves desulfuration efficiency；
3, water need not be largely added when lime stone is with slurry, saved water resource to a certain extent；
4, equipment operation is simple, easy to maintain, by-product can be used effectively, effective protection environment.
Description of the drawings
Fig. 1 is a kind of flue-gas dust-removing and desulfurization purification system structural schematic diagram of the utility model.
1- flue gas pretreatment systems, 11- primary dust removal and filtration casees, 12- electrostatic precipitation casees, 13- wind turbines, 14- flue gas flows
Meter, 2- spray desufurization systems, 21- fume desulfurizing towers, 22- exhaust pipes, 23- adsorption layers, 24- demisters, 25- spray throwers, 26- are followed
Ring pumps, 27- slurry tanks, 28- smoke inlets, 3- slurries feed systems, 31- limestone powder bins, 32- batchers, 33- slurrying
Tank, 34- slurry pools, 35- supply pumps, 4- slurries recovery systems, 41- transmission pumps, 42- dewaterers, 43- surge tanks, 44- discharges
Pump.
Specific implementation mode
The detailed process of the utility model is illustrated by following implementation in conjunction with attached drawing.
As shown in Figure 1, a kind of flue-gas dust-removing and desulfurization purification system, lime stone slurry includes cigarette as desulfurizing agent, the system
Gas pretreating system 1, spray desufurization system 2, slurries feed system 3 and slurries recovery system 4, flue gas pretreatment system 1, slurries
Feed system 3 and slurries recovery system 4 are connect with spray desufurization system 2, and in addition slurries recovery system 4 is also supplied with slurries simultaneously
It is connected to system 3.
It includes fume desulfurizing tower 21 and circulating pump 26 to spray desufurization system 2；21 top of fume desulfurizing tower is equipped with exhaust pipe 22,
It is internal to be equipped with adsorption layer 23, demister 24, spray thrower 25, smoke inlet 28 and slurry tank 27 successively from top to bottom；Slurries store up
Slot 27 divides for upper layer and lower layer, and 26 water inlet end of circulating pump is connected to 27 lower layer of slurry tank, and water outlet is connected to spray thrower 25；Absorption
The sorbing material internal layer of layer 23 is activated carbon fibre, for removing the taste in neat stress；Spray thrower 25 is automatic by multiple 360 °
Rotary nozzle is constituted, and is conducive to coming into full contact with for desulfurizing agent and sulfur-containing smoke gas, improves desulfuration efficiency；Demister 24 is woven wire
Or baffle plate type structure makes it flow back into fume desulfurizing tower 21 for intercepting the drop taken away with air-flow.
Flue gas pretreatment system 1 includes sequentially connected primary filtrating smoke dust case 11, electrostatic precipitation case 12, wind turbine 13 and cigarette
Air-flow gauge 14 is connect by flue with the smoke inlet 28 on fume desulfurizing tower.
Slurries feed system 3 includes sequentially connected limestone powder bin 31, batcher 32, pulping tank 33,34 and of slurry pool
The outlet of supply pump 35, supply pump 35 is connected to 27 lower layer of slurry tank；Batcher 32 is weighing spiral feeder, can be effective
Amount of the control into agstone.
Slurries recovery system 4 includes sequentially connected discharge pump 44, surge tank 43, dewaterer 42 and transmission pump 41, discharge
It pumps 44 entrances to connect with 27 upper layer of slurry tank, 41 outlet of transmission pump is connect with pulping tank 33.
A kind of operating procedure of flue-gas dust-removing and desulfurization purification system, including it is as follows：Supply pump 35 in slurries feed system 3
Lime stone slurry in slurry pool 34 is transported in spray desufurization system 2 in 27 lower layer of slurry tank of fume desulfurizing tower, then
Lime stone slurry is extracted into spray thrower 25 by circulating pump 26.Meanwhile former flue gas wind turbine 13 in flue gas pretreatment system 1
Pass through primary dust removal and filtration case 11 and electrostatic precipitation case 12 under power successively, flue is equipped with flue gas flow meter 14 for controlling
Into the exhaust gas volumn of fume desulfurizing tower 21, flue gas entered by smoke inlet 28 in fume desulfurizing tower 21 system, and is ejected
Lime stone slurry is sufficiently mixed.The flue gas and by-product slurries being purified after reaction, by-product slurries return to fume desulfurizing tower
27 upper layer of slurry tank in, and pass through in slurries recovery system 4 discharge pump 44 discharge after filtering supernatant return slurries supply
It is utilized again to the pulping tank 33 in system 3, gypsum product is made in gypsum after dehydration；Purified flue gas, which then ascends into, to be removed
Demisting in day with fog 24, the neat stress after demisting flow through adsorption layer 23 and are discharged into greatly by the exhaust pipe 22 at 21 top of fume desulfurizing tower
In gas.
Embodiments above is merely to illustrate and unrestricted the technical solution of the utility model.The utility model is not departed from
Any modification or partial replacement should all be covered in the right of the utility model.
Claims (7)
1. a kind of flue-gas dust-removing and desulfurization purification system, which is characterized in that the system includes flue gas pretreatment system, spray sulphur removal system
System, slurries feed system and slurries recovery system, flue gas pretreatment system, slurries feed system and slurries recovery system with spray
Drench desufurization system connection；The flue gas pretreatment system enters the flue gas of spray desufurization system for processing；The slurries
Feed system provides desulfurizing agent lime stone slurry for spray desufurization system；The slurries recovery system is for recycling spray sulphur removal
The by-product slurries generated in system sweetening process；In addition the slurries recovery system also connects with slurries feed system simultaneously
It connects, the supernatant of gained after processing is transmitted to slurries feed system and utilized again by slurries recovery system.
2. a kind of flue-gas dust-removing and desulfurization purification system according to claim 1, which is characterized in that the spray sulphur removal system
System includes fume desulfurizing tower and circulating pump；The flue gas desulfurization top of tower is equipped with exhaust pipe, inside fume desulfurizing tower on to
Under successively be equipped with adsorption layer, demister, spray thrower, smoke inlet and slurry tank.
3. a kind of flue-gas dust-removing and desulfurization purification system according to claim 2, which is characterized in that the slurry tank is set
It sets and is divided into upper layer and lower layer, circulating pump water inlet end is connected to slurry tank lower layer, and water outlet is connected to spray thrower；The adsorption layer
Sorbing material internal layer be activated carbon fibre；The spray thrower is made of multiple 360 ° of auto-rotating spray heads；The demisting
Device is woven wire or baffle plate type structure.
4. a kind of flue-gas dust-removing and desulfurization purification system according to claim 1, which is characterized in that the flue gas pretreatment
System includes sequentially connected primary filtrating smoke dust case, electrostatic precipitation case, wind turbine and flue gas flow meter, passes through flue and cigarette
Smoke inlet connection on desulfurization tower.
5. a kind of flue-gas dust-removing and desulfurization purification system according to claim 1, which is characterized in that the slurries supply system
System includes sequentially connected limestone powder bin, batcher, pulping tank, slurry pool and supply pump, and the outlet of supply pump is connected to slurry
Liquid storage tank lower layer.
6. a kind of flue-gas dust-removing and desulfurization purification system according to claim 5, which is characterized in that the batcher is spiral shell
Weighing feeder is revolved, the amount into agstone can be effectively controlled.
7. a kind of flue-gas dust-removing and desulfurization purification system according to claim 1, which is characterized in that the slurries recycling system
System includes sequentially connected discharge pump, surge tank, dewaterer and transmission pump, and discharge pump intake connect with slurry tank upper layer, passes
Pump discharge is sent to be connect with pulping tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820074846.3U CN207871900U (en) | 2018-01-17 | 2018-01-17 | A kind of flue-gas dust-removing and desulfurization purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820074846.3U CN207871900U (en) | 2018-01-17 | 2018-01-17 | A kind of flue-gas dust-removing and desulfurization purification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207871900U true CN207871900U (en) | 2018-09-18 |
Family
ID=63507128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820074846.3U Expired - Fee Related CN207871900U (en) | 2018-01-17 | 2018-01-17 | A kind of flue-gas dust-removing and desulfurization purification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207871900U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107998865A (en) * | 2018-01-17 | 2018-05-08 | 青岛科技大学 | A kind of flue-gas dust-removing and desulfurization cleaning system |
| CN110938739A (en) * | 2019-12-09 | 2020-03-31 | 郑州宏东实业有限公司 | Heat treatment equipment with recyclable waste heat |
-
2018
- 2018-01-17 CN CN201820074846.3U patent/CN207871900U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107998865A (en) * | 2018-01-17 | 2018-05-08 | 青岛科技大学 | A kind of flue-gas dust-removing and desulfurization cleaning system |
| CN110938739A (en) * | 2019-12-09 | 2020-03-31 | 郑州宏东实业有限公司 | Heat treatment equipment with recyclable waste heat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180918 Termination date: 20190117 |
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| CF01 | Termination of patent right due to non-payment of annual fee |