CN202446978U - Desulfurization reactor device - Google Patents
Desulfurization reactor device Download PDFInfo
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- CN202446978U CN202446978U CN2012200307355U CN201220030735U CN202446978U CN 202446978 U CN202446978 U CN 202446978U CN 2012200307355 U CN2012200307355 U CN 2012200307355U CN 201220030735 U CN201220030735 U CN 201220030735U CN 202446978 U CN202446978 U CN 202446978U
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- pipeline
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Abstract
The utility model belongs to the field of comprehensive reutilization of waste lead storage batteries, and in particular relates to a desulfurization reactor device which has reasonable design, saves energy and reduces emission and is efficient and environment-friendly. The device comprises a deduster connected with a flue as well as a chimney, wherein the deduster is connected with a draught fan and a flue gas inlet at the bottom of a desulfurizing tower body by a pipeline in sequence; a cyclic spray system, a sodium hydroxide spray system, a process water spray system and a dehydrating demister are arranged on the desulfurizing tower body from bottom to top in sequence; a pipeline arranged at the bottom of the desulfurizing tower body is connected with a circulating pool; the bottom of the circulating pool is connected with a regenerated precipitate pool, a regenerated liquid pool, a regenerated liquid pump and the interior of the desulfurizing tower by a pipeline in sequence; the lower part of the circulating pool is connected with a circulating water pump and the cyclic spray system by a pipeline in sequence; and a clean flue gas outlet is arranged at the top of the desulfurizing tower body and is connected with a chimney smoke inlet at the bottom of the chimney by a pipeline. The device has the advantages of simpleness and convenience in operation and long-time stable operation of the system.
Description
Technical field
The utility model belongs to waste and old lead accumulator and comprehensively utilizes the field again, be specifically related to a kind of reasonable in design, the desulphurization reaction apparatus of energy-saving and emission-reduction and high-efficiency environment friendly.
Background technology
Sulfur method is varied; Wherein wet desulphurization be again most effective, sorbent utilization is the highest, wet desulphurization does not simultaneously not only increase the deduster load owing to be after being used in deduster; And has a suitable efficiency of dust collection; And when the deduster fault, play the effect that remedies dedusting, guarantee flue gas 100% qualified discharge.For smoke-gas wet desulfurization, press the difference of desulfurizing agent, use the more limestone-based process that mainly contains, soda method and ammonia process.
1, limestone-based process flue gas desulfurization belongs to low-cost, high efficiency sulfur method, but because lime stone is insoluble in water and SO
2Course of reaction is slower; In desulfurization, need great liquid holdup, when the desulfuration efficiency that requires to reach more than 90%, its gas liquid ratio need reach more than 15 at least; The result who causes like this increases equipment cost and consumes a large amount of energy, and system's power consumption accounts for about 25% of station service.
Advantages such as 2, the soda method is a kind of high efficiency sulfur method, and it is fast also to have reaction speed simultaneously, and gas liquid ratio is little, but because the soda price comparison is expensive; The market price is more than 10 times of quick lime, and it is also similar to be used in the back yard industry gas burner, then will improve desulphurization cost on a large scale for thermal power plant; According to measuring and calculating, the two alkaline process of the cost of this sulfur method exceed 5-8 doubly, and because desulfurization is generated as soluble in water; Environmentally harmful material must be handled desulfurization water, increases operating cost.
3, the ammonia process of desulfurization is the same with the soda method has many advantages, but price is high equally, and the liquefied ammonia price is more than 30 times of quick lime more than 3000 yuan/ton on the market, and liquefied ammonia needs with the pressure vessel transportation simultaneously, when big specification is used, extremely inconvenient.
Summary of the invention
The purpose of the utility model is to overcome defective of the prior art and provides a kind of with low cost, reasonable in design, the desulphurization reaction apparatus of energy-saving and emission-reduction and high-efficiency environment friendly.
The purpose of the utility model is achieved in that and comprises deduster, the chimney that links to each other with flue; Described deduster links to each other with the gas approach of air-introduced machine with desulfurization tower body bottom through pipeline successively; Described desulfurization tower body is disposed with circulated sprinkling system, NaOH spray system from top to bottom, fresh water (FW) spray system and dehydrating demisting device; The pipeline that described desulfurization tower body bottom is provided with links to each other with circulatory pool, described circulatory pool bottom through pipeline successively with the regeneration sedimentation basin, the regeneration liquid pool links to each other with liquid pump and the desulfurizing tower inside of regenerating; The bottom of described circulatory pool links to each other with the circulated sprinkling system with water circulating pump through pipeline successively; Described fresh water (FW) water tank links to each other with the fresh water (FW) spray system through pipeline, and described fresh water (FW) water tank is continuous with the pipeline between NaOH water tank and the NaOH spray system through pipeline; The outlet that the top of described desulfurization tower body is provided with clean flue gas is advanced mouth through pipeline with the chimney of chimney bottom and is linked to each other.Pipeline between described air-introduced machine and the gas approach and chimney advance to be provided with the flue gas temperature elevation system between the mouth.Described chimney advances mouth and links to each other with flue gas discharge continuous monitoring system.The top of described regeneration sedimentation basin is provided with the lime stone import.The bottom of described regeneration sedimentation basin is provided with and effluxes the desulfurization product outlet.
The utlity model has following advantage:
1, soda absorbent reactivity is high, infiltration rate is fast, under the certain situation of liquid-gas ratio, can reach higher desulfuration efficiency; 2, desulfurizing tower liquid phase interior and that circulating line is interior is a sodium base clear liquid, and the solubility of absorbent, absorption product is big, and regeneration and precipitate and separate can reduce in the tower and the interior fouling chance of pipeline outside tower greatly; 3, infiltration rate is fast, reduces operating cost thereby can reduce liquid-gas ratio; 4, desulfurization slag is nontoxic, and solubility is little, and non-secondary pollution can fully utilize; 5, lime is made regenerative agent, and is safe and reliable, wide material sources, and price is low; 6, easy and simple to handle, system can steady in a long-term move.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
Of Fig. 1; The utility model comprises deduster 3, the chimney 1 that links to each other with flue 2; Described deduster 3 links to each other with the gas approach 5 of air-introduced machine 4 with desulfurization tower body 6 bottoms through pipeline successively; Described desulfurization tower body 6 is disposed with circulated sprinkling system 7, NaOH spray system 8 from top to bottom, fresh water (FW) spray system 9 and dehydrating demisting device 10; The pipeline that described desulfurization tower body 6 bottoms are provided with links to each other with circulatory pool 15, described circulatory pool 15 bottoms through pipeline successively with regeneration sedimentation basin 11, regeneration liquid pool 12 links to each other with regenerate liquid pump 13 and desulfurizing tower 6 inside; The bottom of described circulatory pool 15 links to each other with circulated sprinkling system 7 with water circulating pump 14 through pipeline successively; Described fresh water (FW) water tank 16 links to each other with fresh water (FW) spray system 9 through pipeline, and described fresh water (FW) water tank 16 is continuous with the pipeline between NaOH water tank 17 and the NaOH spray system 8 through pipeline; The outlet 18 that the top of described desulfurization tower body 6 is provided with clean flue gas is advanced mouth 19 through pipeline with the chimney of chimney 1 bottom and is linked to each other.Pipeline between described air-introduced machine 4 and the gas approach 5 and chimney advance to be provided with flue gas temperature elevation system 20 between the mouth 19.Described chimney advances mouth 19 and links to each other with flue gas discharge continuous monitoring system 21.The top of described regeneration sedimentation basin 7 is provided with lime stone import 23.The bottom of described regeneration sedimentation basin 7 is provided with and effluxes desulfurization product outlet 22.
The principle of the utility model is: after desulfurizing tower 6 was placed on air-introduced machine 4, flue inserted the desulfurizing tower 6 that is positioned at behind the air-introduced machine 4 from deduster 3 outlet with flue gas, and the flue gas after handling through desulfurizing tower 6 goes out desulfurizing tower 6 by the top again and gets in the chimneys 1 and drain into atmosphere.
Circulation absorption pattern in the doctor solution of the utility model adopts after the doctor solution that has absorbed sulfur dioxide flows into desulfurizing tower bottom cycle pond, is returned in the desulfurizing tower by circulating pump, accomplishes next circulation.Simultaneously; In order to keep the relatively stable of desulfurizing agent concentration in the doctor solution; The circular flow of from circulatory pool, telling doctor solution 20% gets into regenerated reactor, carries the abundant mixed regeneration of lime slurry of coming with the desulfurizing agent preparation system, and the slurries after the regeneration get into the sedimentation basin deposition; Supernatant liquor is returned circulatory pool by regenerative pump, and is returned in the tower by circulating pump.
Pipeline between described air-introduced machine 4 and the gas approach 5 and chimney advance mouth 19 and are provided with flue gas temperature elevation system 20.Wet desulphurization equipment is provided with the bypass flue, can when the desulphurization plant fault, guarantee that kiln can normally move; Simultaneously, can cross low or humidity of flue gas when excessive, let a small amount of flue gas directly add in the flue gas after desulfurization, let flue gas heat up, stop purpose because of band of gas water thereby reach by the bypass road in the flue gas after desulfurization temperature.
The utility model desulfurization dust-removal system technological parameter
The desulfurization absorption liquid that desulfurizing tower comes out contains desulfurization product Na
2CO
3And NaHSO
3Deng material, Na wherein
2SO
3Still have desulfurizing function, be utilization rate that improves desulfurizing agent and the treating capacity that reduces absorption liquid, the absorption liquid major part is returned the desulfurizing tower recycle by circulating pump once more after circulatory pool is concentrated near desulfurizing tower, have only about 20% to go to the desulfurization regeneration pond.After in regenerated reactor, adding 5% lime slurry, regenerative response takes place:
NaHSO
3+Ca(OH)
2→Na
2SO
3+CaSO
3↓+H
2O
NaSO
3+Ca(OH)
2→NaOH+CaSO
3↓
Owing to have partial oxidation reaction: SO in the flue gas
3 2+ O
2→ SO
4 2
The basic principles of chemistry of double alkali method desulfurizing can be represented with following reaction equation:
A, desulphurization reaction
Na
2CO
3+SO
2→Na
2SO
3+CO
2 (1)
NaOH+SO
2→Na
2SO
3+H
2O (2)
Na
2CO
3+SO
2+H
2O→Na?HSO
3 (3)
More than in three reactions: (1) formula is for starting reaction, and in the normal reaction, when desulfurization absorption liquid alkalescence was higher, (2) formula was the key reaction formula: when alkalescence is reduced to neutrality even faintly acid, then react by (3) formula.
B, regenerative process
NaHSO
3+Ca(OH)
2→Na
2SO
3+CaSO
3
Na
2SO
3+Ca(OH)
2→NaOH+CaSO
3↓
2CaSO
3+O
2→2CaSO
4↓
In regenerated reactor, after in acid absorption liquid, adding lime slurry, NaHSO
3Discharge Na with lime reaction very soon
+, the SO that generates subsequently
3 2Continue with lime reaction again, the product of generation is with semihydrate CaSO
3, 1/2H
2The form of O precipitates, thereby reaches the purpose of soda regeneration.
Claims (5)
1. desulphurization reaction apparatus; Comprise the deduster (3), the chimney (1) that link to each other with flue (2); It is characterized in that: described deduster (3) links to each other with the gas approach (5) of air-introduced machine (4) with desulfurization tower body (6) bottom through pipeline successively; Described desulfurization tower body (6) is disposed with circulated sprinkling system (7), NaOH spray system (8) from top to bottom, fresh water (FW) spray system (9) and dehydrating demisting device (10); The pipeline that described desulfurization tower body (6) bottom is provided with links to each other with circulatory pool (15), described circulatory pool (15) bottom through pipeline successively with regeneration sedimentation basin (11), regeneration liquid pool (12) links to each other with liquid pump (13) and desulfurizing tower (6) inside of regenerating; The bottom of described circulatory pool (15) links to each other with circulated sprinkling system (7) with water circulating pump (14) through pipeline successively; Described fresh water (FW) water tank (16) links to each other with fresh water (FW) spray system (9) through pipeline, and described fresh water (FW) water tank (16) is continuous with the pipeline between NaOH water tank (17) and the NaOH spray system (8) through pipeline; The outlet (18) that the top of described desulfurization tower body (6) is provided with clean flue gas is advanced mouth (19) through pipeline with the chimney of chimney (1) bottom and is linked to each other.
2. desulphurization reaction apparatus according to claim 1 is characterized in that: pipeline between described air-introduced machine (4) and the gas approach (5) and chimney advance to be provided with flue gas temperature elevation system (20) between the mouth (19).
3. desulphurization reaction apparatus according to claim 1 is characterized in that: described chimney advances mouth (19) and links to each other with flue gas discharge continuous monitoring system (21).
4. desulphurization reaction apparatus according to claim 1 is characterized in that: the top of described regeneration sedimentation basin (7) is provided with lime stone import (23).
5. desulphurization reaction apparatus according to claim 1 is characterized in that: the bottom of described regeneration sedimentation basin (7) is provided with and effluxes desulfurization product outlet (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200307355U CN202446978U (en) | 2012-01-19 | 2012-01-19 | Desulfurization reactor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200307355U CN202446978U (en) | 2012-01-19 | 2012-01-19 | Desulfurization reactor device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202446978U true CN202446978U (en) | 2012-09-26 |
Family
ID=46862873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200307355U Withdrawn - After Issue CN202446978U (en) | 2012-01-19 | 2012-01-19 | Desulfurization reactor device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202446978U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102614768A (en) * | 2012-01-19 | 2012-08-01 | 新乡市亚洲金属循环利用有限公司 | Desulfurization reactor device |
| CN103691276A (en) * | 2013-12-10 | 2014-04-02 | 武汉钢铁(集团)公司 | Method and device for improving utilization rate of alkali liquor at alkaline cleaning section of vacuum potassium carbonate desulfurization technique |
-
2012
- 2012-01-19 CN CN2012200307355U patent/CN202446978U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102614768A (en) * | 2012-01-19 | 2012-08-01 | 新乡市亚洲金属循环利用有限公司 | Desulfurization reactor device |
| CN102614768B (en) * | 2012-01-19 | 2014-02-26 | 新乡市亚洲金属循环利用有限公司 | Desulfurization reactor device |
| CN103691276A (en) * | 2013-12-10 | 2014-04-02 | 武汉钢铁(集团)公司 | Method and device for improving utilization rate of alkali liquor at alkaline cleaning section of vacuum potassium carbonate desulfurization technique |
| CN103691276B (en) * | 2013-12-10 | 2016-03-16 | 武汉钢铁(集团)公司 | A kind of method and device improving vacuum potassium carbonate desulfurization technique alkali wash section alkali lye utilization rate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120926 Effective date of abandoning: 20140226 |
|
| RGAV | Abandon patent right to avoid regrant |