CN201609621U - Spray tower for dry-method dust removal of coal gas - Google Patents
Spray tower for dry-method dust removal of coal gas Download PDFInfo
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- CN201609621U CN201609621U CN2010201017717U CN201020101771U CN201609621U CN 201609621 U CN201609621 U CN 201609621U CN 2010201017717 U CN2010201017717 U CN 2010201017717U CN 201020101771 U CN201020101771 U CN 201020101771U CN 201609621 U CN201609621 U CN 201609621U
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Abstract
The utility model relates to a spray tower for dry-method dust removal of coal gas, comprising a tower body, at least three layers of water spray structures and a water draining sealing tank, wherein one side surface of the tower body is provided with a coal gas inlet which is connected with a coal gas pipeline, and the top of the tower body is provided with a coal gas outlet; the inner upper part of the tower body is provided with at least two filling layers and the inner lower part thereof is provided with a water draining hopper, and each water spray structure comprises a ring-shaped water pipe and a plurality of spray guns arranged on the ring-shaped water pipe; the ring-shaped water pipe is arranged at the outer side of the tower body, and the water spray ends of the spray guns are correspondingly arranged in the tower body by penetrating through the tower body; each ring-shaped water pipe is respectively connected with a water supply pipeline, on which a flow meter and a control valve are arranged; and the water draining sealing tank is arranged at the water draining side of the tower body and connected with the water draining hopper at the inner lower part of the tower body through a pipeline. The spray tower for dry-method dust removal of coal gas solves the harmful effects of the defects of dry-method dust removal technology of coal gas on clean coal gas pipelines and subsequent devices for coal gas users.
Description
Technical field
The utility model relates to gas purification equipment, particularly is applicable to the spray column of super-huge blast furnace gas dry dusting.
Background technology
Blast furnace gas is the significant by-products that blast furnace ironmaking is produced, and can be used as the fuel of the Cheap highly effective of other flow processs in the integrated iron and steel works.Blast furnace gas enters gravitational precipitator from the furnace roof tedge through down-comer, and about 40% bulky grain dust is stayed in the gravitational precipitator and discharged by ash ejector in the raw gas.The initially treated raw coke oven gas of process enters in the follow-up gas purification process equipment to be handled, and the purified gas dustiness that requires to handle is less than 5mg/NM
3
Existing gas purification process equipment is divided into 2 big classes, and a class is the gas wet cleaning, relatively is typically two civilian scrubbing towers, also has and uses more circumferential weld washing process at present.Another kind of is the coal gas dry-method dust collecting process, and the most frequently used is bag-type dust.
Gas wet cleans and the coal gas dry-method dust collecting process respectively has pluses and minuses:
The gas wet purging system, the maintenance of equipment expense is lower, maintenance load is little, but whole gas wet washing system floor space is big, and operation needs many water supply that high powered water pump does not stop, the consumption industrial fresh water is many, and the water treatment of washing coal gas difficulty relatively, the obstruction of wearing and tearing easily of sludge carrier pipe road, operating cost is higher, coal gas of high temperature obviously descends through cleaning the back sensible heat, has reduced the generating capacity of top pressure power generation system.And the content of mechanical water and dust is more much higher than dry method dust in the coal gas after the wet-cleaning, is unfavorable for coal gas user's use.
Gas dry-dedusting system, floor space is less on the whole, and it is few to consume industrial fresh water, and the dust content of gas after the dedusting is low, gas temperature height, the generating capacity height of top pressure power generation system.Shortcoming is that the post facility maintenance cost is higher, especially fatal is still remains in the coal gas through harmful ion in the coal gas of dedusting such as chlorion, sulfate ion, can form the sour corrosion medium because gas condensed water is separated out at the low temperature coal gas pipeline section, gas piping and coal gas subscriber equipment are caused damage.
Consider that from the energy-conserving and environment-protective angle coal gas dry-method dust collecting process just day by day becomes the first-selected technology of large blast furnace gas purification, the defective workmanship of itself also constantly highlights.
Summary of the invention
The purpose of this utility model is to design a kind of spray column of coal gas dry-method dedusting, solves the harmful effect of coal gas dry-method dust collecting process drawback to purified gas pipeline and follow-up coal gas subscriber equipment.
For achieving the above object the technical solution of the utility model:
The spray column of coal gas dry-method dedusting, it comprises, tower body, the one side is provided with the gas entry that connects gas piping, and gas exit is established at the tower body top; The tower body internal upper part is established two-layer at least packing layer, and drain bucket is established in the bottom in the tower body; At least three layers of water spraying structure, every layer of water spraying structure comprises annular conduit, is arranged at the some spray guns on the annular conduit; Annular conduit is located on the tower body outside, and spray gun water spray end passes in the corresponding tower body of tower body; Each annular conduit connects feedwater piping respectively; Be provided with flow on the feedwater piping and take into account by-pass valve control; The draining hermetically sealed can is arranged at the drain-side of tower body, connects the drain bucket of bottom in the tower body by pipeline.
Further, the internal diameter of described tower body is 3 times of gas piping internal diameter.
Again, described spray gun is connected with the spray column tower body by flange.
By-pass valve control is set respectively on the described annular conduit.
Be provided with U type water sealing (sealing water) pipe on the described feedwater piping.
Described tower body design has the self supporting structure that can stably be installed on the basis.
In addition, also be provided with the inspection manhole of being convenient to inside is checked and changed the filler operation on the tower body described in the utility model.
Described feedwater piping connects a pond, and the pond is provided with electric water level gauge and water pump.
In spray column of the present utility model,
Be provided with flowmeter on the feedwater piping, can regulate confluent by manually-operated gate, move with economic way on the qualified basis of purified gas composition guaranteeing according to operational effect.
The drain-side of spray column is provided with the draining hermetically sealed can, satisfies the sealing and the drainage requirement of low-pressure gas.
The pond of spray column is provided with electric water level gauge, and the limit, pond is provided with three water pumps, can control the start and stop of water pump according to the setting of water level, makes whole system be in automatic running status.
The internal diameter of tower body is 3 times of gas piping internal diameter, has guaranteed that gas speed is lower, can fully mix with the spray atomized water.
Spray column is provided with three layers of spray gun, and every layer spray gun quantity is different with length, and the spray water of ejection can cover whole spray column inner surface, prevents the coal gas flow short-circuit and influences clean result.
Spray gun is connected with the spray column tower body by flange, has both guaranteed not leakage gas, can be convenient for changing when maintenance again.
Three layers of shower are provided with manually-operated gate respectively, can adjust the inlet valve aperture according to process requirements and promptly adjust the spray Total Water, also can close certain layer nozzle respectively, and are easy to adjust reliable.
Spray column feedwater side is provided with U type water sealing (sealing water) pipe, even the cutout of supplying water can guarantee that also the coal gas in the spray column does not escape.
Spray column is provided with two-layer packing layer, is used to slough the mechanical water that the coal gas cleaning process is brought into, guarantees that the coal gas water content that is sent to gaspipe network meets technological requirement.
The spray column tower body is designed to self supporting structure, can stably be installed on the basis, need not support by extraneous steel construction.
The position that spray column is suitable is provided with inspection manhole, is convenient to the filler operation is checked and changed in inside.
Advantage of the present utility model is:
The water that coal gas spraying cooling tower uses is the dirty recirculated water that original wet gas cleaning system provides, clean dried wet method and use the coal gas purging system for blast furnace gas, when being in the dry method dust state, original coal gas cleans the water yield of dirty water circulating pump and can suitably turn down, guarantee that original two civilian scrubbing tower water level is on the basis of safety level, unnecessary water can be used for the coal gas spray washing, the water that has washed is back to the pond, send water back to the water treatment plant dosing by the foldback pump again and adjust indexs such as pH value, the water of spray column can be recycling, need not replenish new water substantially.
Not only well adapted to of the requirement of different working conditions to the coal gas purging system, also solved because of acid ion and chloride ion content height in the coal gas dry-method dedusting purified gas to the Corrosion of Pipeline problem.5.8 after the washing brought up in 1.5 before by the washing of the pH value of gas condensed water, and chloride ion content is reduced to 156ppm by 1400ppm, has obtained good comprehensive benefit.
Description of drawings
Fig. 1 is the schematic diagram of the utility model one embodiment;
Fig. 2 is the schematic diagram of the utility model embodiment spray column;
Fig. 3 is the cutaway view of the utility model embodiment.
The specific embodiment
Referring to Fig. 1～Fig. 3, the spray column of the utility model coal gas dry-method dedusting, it comprises, tower body 1, the one side is provided with the gas entry 101 that connects gas piping 9, and gas exit 102 is established at the tower body top; The tower body internal upper part is established two-layer packing layer 2,2 ', and drain bucket 3 is established in the bottom in the tower body 1; Three layers of water spraying structure, every layer of water spraying structure comprises annular conduit 4, is arranged at the some spray guns 5,5 ' on the annular conduit 4; Annular conduit 4 is located on tower body 1 outside, and spray gun 5,5 ' water spray end pass in the tower body 1 corresponding tower body; Each annular conduit 4 connects feedwater piping 6 respectively; Be provided with flow on the feedwater piping 6 and take into account by-pass valve control; Draining hermetically sealed can 11 is arranged at the drain-side of tower body 1, connects the drain bucket 3 of bottom in the tower bodies 1 by drainage pipeline 10.
The internal diameter of described tower body 1 is 3 times of gas piping 9 internal diameters.Described spray gun is connected with the spray column tower body by flange.On the described shellring shape water pipe 4 by-pass valve control is set respectively.Be provided with U type water sealing (sealing water) pipe 7 on the feedwater piping 6.Described tower body 1 design has the self supporting structure 8 that can stably be installed on the basis.
The pond 12 of spray column is provided with electric water level gauge, and the limit, pond is provided with three water pumps 13, can control the start and stop of water pump according to the setting of water level, makes whole system be in automatic running status.
In addition, also be provided with the inspection manhole of being convenient to inside is checked and changed the filler operation on the tower body 1 described in the utility model.
Claims (8)
1. the spray column of coal gas dry-method dedusting is characterized in that, comprise,
Tower body, the one side is provided with the gas entry that connects gas piping, and gas exit is established at the tower body top; The tower body internal upper part is established two-layer at least packing layer, and drain bucket is established in the bottom in the tower body;
At least three layers of water spraying structure, every layer of water spraying structure comprises annular conduit, is arranged at the some spray guns on the annular conduit; Annular conduit is located on the tower body outside, and spray gun water spray end passes in the corresponding tower body of tower body; Each annular conduit connects feedwater piping respectively; Be provided with flow on the feedwater piping and take into account by-pass valve control;
The draining hermetically sealed can is arranged at the drain-side of tower body, connects the drain bucket of bottom in the tower body by pipeline.
2. the spray column of coal gas dry-method dedusting as claimed in claim 1 is characterized in that, the internal diameter of described tower body is 3 times of gas piping internal diameter.
3. the spray column of coal gas dry-method dedusting as claimed in claim 1 is characterized in that, described spray gun is connected with the spray column tower body by flange.
4. the spray column of coal gas dry-method dedusting as claimed in claim 1 is characterized in that, by-pass valve control is set respectively on the described annular conduit.
5. the spray column of coal gas dry-method dedusting as claimed in claim 1 is characterized in that, is provided with U type water sealing (sealing water) pipe on the described feedwater piping.
6. the spray column of coal gas dry-method dedusting as claimed in claim 1 is characterized in that, described tower body design has the self supporting structure that can stably be installed on the basis.
7. the spray column of coal gas dry-method dedusting as claimed in claim 1 is characterized in that, also is provided with the inspection manhole of being convenient to inside is checked and changed the filler operation on the described tower body.
8. the spray column of coal gas dry-method dedusting as claimed in claim 1 is characterized in that, described feedwater piping connects a pond, and the pond is provided with electric water level gauge and water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201017717U CN201609621U (en) | 2010-01-26 | 2010-01-26 | Spray tower for dry-method dust removal of coal gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201017717U CN201609621U (en) | 2010-01-26 | 2010-01-26 | Spray tower for dry-method dust removal of coal gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201609621U true CN201609621U (en) | 2010-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201017717U Expired - Fee Related CN201609621U (en) | 2010-01-26 | 2010-01-26 | Spray tower for dry-method dust removal of coal gas |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272451A (en) * | 2013-05-13 | 2013-09-04 | 茅兴娟 | Exhaust gas scrubbing tower |
| CN104001394A (en) * | 2014-06-25 | 2014-08-27 | 昆明中天达玻璃钢开发有限公司 | Scrubbing tower |
| CN104399337A (en) * | 2014-11-25 | 2015-03-11 | 广西农垦糖业集团红河制糖有限公司 | Boiler chimney dust collection system and dust collection method |
| CN105642046A (en) * | 2016-01-11 | 2016-06-08 | 陈胜民 | Measure for filtering, cleaning and rinsing chimney smoke dust by water mist |
| CN107036119A (en) * | 2017-04-21 | 2017-08-11 | 昆明理工大学 | One kind water saving chimney dust removal blowdown apparatus |
| CN111704938A (en) * | 2020-06-29 | 2020-09-25 | 马鞍山钢铁股份有限公司 | Gas cleaning tower integrated with safety water seal |
-
2010
- 2010-01-26 CN CN2010201017717U patent/CN201609621U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272451A (en) * | 2013-05-13 | 2013-09-04 | 茅兴娟 | Exhaust gas scrubbing tower |
| CN104001394A (en) * | 2014-06-25 | 2014-08-27 | 昆明中天达玻璃钢开发有限公司 | Scrubbing tower |
| CN104001394B (en) * | 2014-06-25 | 2016-08-17 | 昆明中天达玻璃钢开发有限公司 | A kind of scrubbing tower |
| CN104399337A (en) * | 2014-11-25 | 2015-03-11 | 广西农垦糖业集团红河制糖有限公司 | Boiler chimney dust collection system and dust collection method |
| CN105642046A (en) * | 2016-01-11 | 2016-06-08 | 陈胜民 | Measure for filtering, cleaning and rinsing chimney smoke dust by water mist |
| CN107036119A (en) * | 2017-04-21 | 2017-08-11 | 昆明理工大学 | One kind water saving chimney dust removal blowdown apparatus |
| CN111704938A (en) * | 2020-06-29 | 2020-09-25 | 马鞍山钢铁股份有限公司 | Gas cleaning tower integrated with safety water seal |
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| 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: 20101020 Termination date: 20160126 |
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| EXPY | Termination of patent right or utility model |