CN202129022U - Wet desulfurization dust collecting system for lime - Google Patents
Wet desulfurization dust collecting system for lime Download PDFInfo
- Publication number
- CN202129022U CN202129022U CN201120203041U CN201120203041U CN202129022U CN 202129022 U CN202129022 U CN 202129022U CN 201120203041 U CN201120203041 U CN 201120203041U CN 201120203041 U CN201120203041 U CN 201120203041U CN 202129022 U CN202129022 U CN 202129022U
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- spray
- sprinkling
- reaction chamber
- reative cell
- lime
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Abstract
The utility model provides a wet desulfurization dust collecting system for lime, which is higher in fume gas desulfurization rate and simpler in structure and comprises a sprinkling reaction chamber, a lime slurry sprinkling device and a solvent tank. The lime slurry sprinkling device is arranged inside the sprinkling reaction chamber, the solvent tank is arranged at the bottom of the sprinkling reaction chamber, a flue gas inlet is arranged at one end of the sprinkling reaction chamber, a flue gas outlet is arranged at the other end of the sprinkling reaction chamber, the sprinkling reaction chamber is divided into three sprinkling reaction chambers, a passage between the first sprinkling reaction chamber and the second sprinkling reaction chamber is positioned on the upper portion of the sprinkling reaction chamber, a passage between the second sprinkling reaction chamber and the third sprinkling chamber is positioned on the lower portion of the sprinkling reaction chamber, the flue gas inlet is positioned below the first sprinkling reaction chamber, and the flue gas outlet is positioned above the third sprinkling reaction chamber. Flue gas passes through the three serially connected absorbing reaction chambers of the wet desulfurization dust collecting system to be desulfurized, and is purified more thoroughly and can be discharged standardly, so that the wet desulfurization dust collecting system has the advantages of low energy consumption, no blockage, stable desulfurizing efficiency and the like.
Description
Technical field
The utility model relates to a kind of flue gas desulphurization system, especially a kind of lime wet desulfurizing and dust collecting system.
Background technology
The flue gas desulfurization dust-removal system that uses at present mainly can be divided into four types: flue gas desulfurization technique after control-raw coal purifies in (2) burning in the control-sulfuration bed burning (CFB) and stove after spray absorbent (3) burning control-flue gas desulfurization (4) new technology (like coal gasification/combined cycle system, slag tap burner) wherein the most countries employing is burnt before (1) burning.Flue gas desulfurization then with wet type limestone/gypsum method sulfur removal technology as main flow.
Early stage lime wet desulfurizing and dust collecting system comprises aeration type, vertical countercurrent spray tower, horizontal-jet tower, and has adopted some internal structures such as pallet, filler, glass marble to wait and promote reaction.Efficient is generally 70%～85%.Except that minority, byproduct does not have any commercial value and can only have only magnesium base method and Wellman-Lord method output that the sulphur and the sulfuric acid of commercial value are arranged as trash discharge.Initial cost is not high, but operation maintenance expense height and system reliability is low.Fouling and material failure are maximum problems.Along with the growth of experience, flow is improved, and has reduced the operation maintenance expense and has improved reliability.
Existing lime wet desulfurizing and dust collecting system be improved at burner hearth and flue injection flow process, but desulfurization degree can only reach 90%.
The utility model content
The utility model provides that a kind of flue gas desulphuization rate is higher, the simple more lime wet desulfurizing and dust collecting system of structure.
Realize the lime wet desulfurizing and dust collecting system of the utility model purpose; Comprise the lime white spray equipment that sprays reative cell, is positioned at said spray reative cell, be positioned at the solvent cell of said spray reative cell bottom, said spray reative cell one end is provided with gas approach; The other end is provided with exhanst gas outlet; Said spray reative cell is divided into three spray reative cells, and the passage between the first spray reative cell and the second spray reative cell is positioned at the top of reative cell, and the passage of the second spray reative cell and the 3rd spray reative cell is positioned at the below of reative cell; Said gas approach is positioned at the below of the first spray reative cell, and said exhanst gas outlet is positioned at the top of said the 3rd spray reative cell.
The bottom of said solvent cell is provided with the aeration oxidation unit, and said solvent cell also is connected with sedimentation basin, and the aeration oxidation unit is introduced compressed air and carried out the aeration oxidation, and waste water constantly is discharged in the sedimentation basin, through post precipitation, can lime and sulfide be recycled.
The clear water output of said sedimentation basin links to each other with the lime water tank of said lime white spray equipment, and the clear water of sedimentation basin post precipitation is sent back to the recycling of lime water tank, conserve water resource.
The beneficial effect of the utility model is following:
The lime wet desulfurizing and dust collecting system of the utility model; Waste gas is introduced the spray reative cell, and with the reaction dissolvent of spray and the oxygen of importing, doing at a high speed, reaction absorbs; After the absorption reaction chamber desulfurization of flue gas through three series connection; Can obtain purifying comparatively completely qualified discharge, advantages such as having low energy consumption, do not have to stop up, desulfuration efficiency is stable.
Harmful substance gross weight in the flue gas is every is all successively decreased about 70% through a reative cell, behind the 3rd reative cell, is discharged to the chimney emptying, and purifying rate reaches more than 98.5%.The solvent of spray falls in the solvent cell of road in the bottom owing to the gravity effect behind the fosterization sulphur that absorbs flue gas and other flue dust; Introduce compressed air through aeration oxidation units such as roots blowers in the solvent cell and carry out the aeration oxidation; Waste water constantly is discharged to sedimentation basin; Deng generating post precipitation, can refine byproducts such as calcium sulfate, ammonium sulfate, sodium sulphate and gypsum, turn waste into wealth.Reactant is different, and the byproduct that obtains is also different, and the desulfurization and dedusting solvent water circulation is used, and practices thrift process water.
The lime wet desulfurizing and dust collecting system of the utility model, simple in structure, easy to operate, durable in use, equipment does not have clogging, and desulfurized effect is stable, and is cheap, easy maintenance, operating cost is low.
Description of drawings
Fig. 1 is the structural representation of the utility model lime wet desulfurizing and dust collecting system.
The specific embodiment
The embodiment of the utility model is following:
As shown in Figure 1; The lime wet desulfurizing and dust collecting system of the utility model; Comprise the lime white spray equipment 5 that sprays reative cell 1, is positioned at said spray reative cell 1, be positioned at the solvent cell 6 of said spray reative cell 1 bottom, said spray reative cell 1 one ends are provided with gas approach 7; The other end is provided with exhanst gas outlet 8; Said spray reative cell 1 is divided into three spray reative cells, and the passage between the first spray reative cell 2 and the second spray reative cell 3 is positioned at the top of reative cell, and the passage of the second spray reative cell 3 and the 3rd spray reative cell 4 is positioned at the below of reative cell; Said gas approach 7 is positioned at the below of the first spray reative cell 2, and said exhanst gas outlet 8 is positioned at the top of said the 3rd spray reative cell 4.Said exhanst gas outlet 8 communicates with said chimney 12.
The bottom of said solvent cell 6 is provided with aeration oxidation unit 9; Said solvent cell 6 also is connected with sedimentation basin 11, and aeration oxidation unit 9 is introduced compressed air and carried out the aeration oxidation, and waste water constantly is discharged in the sedimentation basin 11; Through post precipitation, can lime and sulfide be recycled.
The clear water output of said sedimentation basin 11 links to each other with the lime water tank 10 of said lime white spray equipment 5, and the clear water of sedimentation basin 11 post precipitations is sent back to 10 recyclings of lime water tank, conserve water resource.
The lime wet desulfurizing and dust collecting system of the utility model, waste gas are introduced spray reative cell 1, with the reaction dissolvent of spray and the oxygen of importing; Doing at a high speed, reaction absorbs; After the absorption reaction chamber desulfurization of flue gas through three series connection, can obtain purifying comparatively completely, can qualified discharge.
Harmful substance gross weight in the flue gas is every is all successively decreased about 70% through a reative cell, behind the 3rd reative cell, is discharged to chimney 12 emptyings, and purifying rate reaches more than 98.5%.The solvent of spray falls in the solvent cell 6 of road in the bottom owing to the gravity effect behind the fosterization sulphur that absorbs flue gas and other flue dust; Introduce compressed air through aeration oxidation units such as roots blower 9 in the solvent cell 6 and carry out the aeration oxidation; Waste water constantly is discharged to sedimentation basin 11; Deng generating post precipitation, can refine byproducts such as calcium sulfate, ammonium sulfate, sodium sulphate and gypsum, turn waste into wealth.Reactant is different, and the byproduct that obtains is also different, and the desulfurization and dedusting solvent water circulation is used, and practices thrift process water.
The lime wet desulfurizing and dust collecting system of the utility model, spray reative cell 1 has improved the moulding of import and export flue for circulating pump supplies slurry top spray counter current contacting+following current contact spray reative cell, thoroughly eliminates flue gas turbulent flow in the tower; Design many zoneofoxidations and arranged, optimized lime stone flow inlet interface position, gypsum exit position etc.; The operation of no demister is completely abolished bypass flue and baffle door thereof, FGD imports and exports baffle door, is genuine void tower; Improve desulfuration efficiency, ability loss-rate to greatest extent, reduced stone consumption (CaCO
3), water consumption, power consumption, cost is low.
Embodiment recited above describes the preferred implementation of the utility model; Be not that scope to the utility model limits; Design under the spiritual prerequisite not breaking away from the utility model; Various distortion and improvement that the common engineers and technicians in this area make the utility model technical scheme all should fall in the protection domain that claims of the utility model confirm.
Claims (3)
1. a lime wet desulfurizing and dust collecting system comprises the lime white spray equipment that sprays reative cell, is positioned at said spray reative cell, is positioned at the solvent cell of said spray reative cell bottom; Said spray reative cell one end is provided with gas approach; The other end is provided with exhanst gas outlet, it is characterized in that, said spray reative cell is divided into three spray reative cells; Passage between the first spray reative cell and the second spray reative cell is positioned at the top of reative cell; The passage of the second spray reative cell and the 3rd spray reative cell is positioned at the below of reative cell, and said gas approach is positioned at the below of the first spray reative cell, and said exhanst gas outlet is positioned at the top of said the 3rd spray reative cell.
2. lime wet desulfurizing and dust collecting system according to claim 1 is characterized in that the bottom of said solvent cell is provided with the aeration oxidation unit, and said solvent cell also is connected with sedimentation basin.
3. lime wet desulfurizing and dust collecting system according to claim 2 is characterized in that, the clear water output of said sedimentation basin links to each other with the lime water tank of said lime white spray equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120203041U CN202129022U (en) | 2011-06-04 | 2011-06-04 | Wet desulfurization dust collecting system for lime |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120203041U CN202129022U (en) | 2011-06-04 | 2011-06-04 | Wet desulfurization dust collecting system for lime |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202129022U true CN202129022U (en) | 2012-02-01 |
Family
ID=45517808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120203041U Expired - Fee Related CN202129022U (en) | 2011-06-04 | 2011-06-04 | Wet desulfurization dust collecting system for lime |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202129022U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272452A (en) * | 2013-05-20 | 2013-09-04 | 福建省星源农牧科技股份有限公司 | Dry-wet process combined recovery device of excess smashed material of organic fertilizer raw material |
| CN103436301A (en) * | 2013-09-13 | 2013-12-11 | 上海电力学院 | Combined dust removal and desulfurization system for coal gas |
| CN104353338A (en) * | 2014-10-28 | 2015-02-18 | 南京大学（苏州）高新技术研究院 | Cross flow-type desulfurization device |
| CN110152421A (en) * | 2019-06-28 | 2019-08-23 | 河南宗源环保科技有限公司 | Tunnel-type kiln smoke evacuation wash mill |
-
2011
- 2011-06-04 CN CN201120203041U patent/CN202129022U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272452A (en) * | 2013-05-20 | 2013-09-04 | 福建省星源农牧科技股份有限公司 | Dry-wet process combined recovery device of excess smashed material of organic fertilizer raw material |
| CN103272452B (en) * | 2013-05-20 | 2015-09-09 | 福建省星源农牧科技股份有限公司 | Organic fertilizer raw material crushed material clout wet-dry change combined recovery device |
| CN103436301A (en) * | 2013-09-13 | 2013-12-11 | 上海电力学院 | Combined dust removal and desulfurization system for coal gas |
| CN104353338A (en) * | 2014-10-28 | 2015-02-18 | 南京大学（苏州）高新技术研究院 | Cross flow-type desulfurization device |
| CN110152421A (en) * | 2019-06-28 | 2019-08-23 | 河南宗源环保科技有限公司 | Tunnel-type kiln smoke evacuation wash mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20170604 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |