CN2420508Y - Water dust-removing double tower recovery device for cement machine shaft kiln - Google Patents
Water dust-removing double tower recovery device for cement machine shaft kiln Download PDFInfo
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- CN2420508Y CN2420508Y CN 00235442 CN00235442U CN2420508Y CN 2420508 Y CN2420508 Y CN 2420508Y CN 00235442 CN00235442 CN 00235442 CN 00235442 U CN00235442 U CN 00235442U CN 2420508 Y CN2420508 Y CN 2420508Y
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- water
- double tower
- dust
- tower body
- shaft kiln
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Abstract
The utility model relates to a water dust removing and double-tower recovering device for a cement machine of a vertical kiln, which belongs to the technical field of a special device which separates diffused dust from smoke gas to be recovered, cleaned and filtered. The utility model is composed of a sedimentation chamber, a gas, dust and water separator and an auxiliary machine. The utility model is characterized in that a plurality of spray nozzles are added to the sedimentation chamber, and the spray nozzles are pressurized into a spraying system by tap water. The time of the smoke gas in the sedimentation chamber and inner cavities of a two-tower body is prolonged by a three-stage precipitation water tank. The water of an inner kiln of a tower body can react fully with the dust by the guidance of the jetted flow of a high pressure blower to obtain the function of high-efficiency dust removal.
Description
The utility model relates to the cement equipment shaft kiln deduster, belongs to being used for the diffusion dust is separated the cleaning and filtering isolated plant technical field that reclaims from flue gas.
Along with development and national economy, the shaft kiln cement industry of China is in the ascendant, surplus national shaft kiln cement plant has reached 20,000, accounts for more than 80% of national cement total output.For China's cement industry and development and national economy make a great contribution.But Vertical Kiln for Cement Production still exists with serious pollution problem, mechanical shaft kiln burning especially, and Dark smoke billows, and dust fills the air, and is cement plant primary pollution source, and it not only contains a large amount of dust, but also contains SO
2Poisonous with HF etc., gas is corrosive; Surrounding environment is destroyed serious, people's health is brought very big harm, arrived must improvement the time.State Council's just decision in 1996 " is wanted qualified discharge to all industrial pollution sources of the whole nation in 2000.
At present, dried, wet two kinds of ways that domestic improvement for the cement in vertical kiln dust has, dry method dust mainly is to adopt electrostatic precipitation and dust settling pocket technique, but these two kinds of methods are big because of investing, operation and maintenance cost is high, and lack and fail further to promote the use of service life.In recent years, adopt the water deduster technology again morely, and had that one-time investment was little, operating cost is low, the advantage with the shaft kiln calcination operating mode matches also can reach 150mg/Nm
3National environmental standard.But most principles that do not adopt former expansion chamber dedusting cause certain waste.The 90 years later construction machine shaft kilns in general cement plant all have expansion chamber, and efficient is not bad, general sectional wind velocity 0.3-0.5m/s, and gas residence time is 20-40s, and efficiency of dust collection is about 50-60%, and the chimney outlet dust concentration is 1-2g/Nm
3, adopting dying fire or dark flameless calcination technology, dust emission concentration will be lower than 600-800mg/Nm
3, but apart from state environmental emissioning standard 150mg/Nm
3, still fall far short.Therefore, to can be used as primary dust removing be the most desirable selection to expansion chamber.The cement plant requires to keep ten thousand yuan of former expansion chamber cost 25-30.
The purpose of the present utility model: be on the basis that can make full use of former expansion chamber, to give improved utility model dedusting technology.It is light that it not only has weight of equipment, easy and simple to handle, easily Installation and Debugging, numerous advantages such as easy to maintenance.And small investment, power-saving, effective, real is the novel concrete machine shaft kiln dual-tower dust removal device of a kind of low input, high repayment.The superperformance of this equipment not only can be created considerable economic to applying unit, more can bring into play and show its social benefit for improving environment.
Above purpose is achieved through the following technical solutions.
This cement equipment shaft kiln water dedusting double tower retracting device ties up on the former expansion chamber basis, is improved.In the sedimentation chamber, increase a plurality of suitable spray spray nozzles, the water yield is controlled to wet method do row's principle, the granule dust more than the 50 μ m is effectively obtained sedimentation, as the one-level pre-duster of water dedusting double tower retracting device.Then, enter the dual-tower dust removal device, adopt the gas seperator of ash and water by former flue, jet is induced, the deduster of whirlwind, moisture film, spray washing and fast, precipitation, collection plaster separator, two big main frames and subsidiary engine compositions such as three grades of precipitation water tanks.It is characterized in that:
Be provided with a plurality of spray nozzles 27 in the described expansion chamber 29, pass through filters 25 then to three cylinder piston pumps 26 with running water by clear water pipe 21, pressurized gasification controls to wet method by spraying system 27 water yields and does row's requirement.Granule dust more than the 50 μ m is effectively obtained sedimentation.The pre-dedusting purpose of one-level as water dedusting double tower retracting device.
Described double tower body 1, two flues 7 that join through both sides and secant-shaped and be located at that smokejack 7 joins on the machine shaft kiln expansion chamber 29, described flue 7 connects slightly downward double tower body 1 and tilts.Its top is provided with Chimney cover.Double tower body 1 bottom is respectively equipped with a high pressure positive blower 18, tangentially entering gas seperator of ash and water 19 by air inlet pipe 32 is equipped with a plurality of jet blower 31 tops that slightly are inclined upwardly and is provided with jet pipe 16 and penetrates jet pipe, be provided with a controlled dish in the pipe and cut down 5, endless tube a plurality of nozzle spray systems 15,16,17 of arranging are housed outside double tower body 1, and a plurality of moisture film nozzles are equipped with on double tower top.Buck enters seperator of ash and water by tower bottom blowdown hole.
Described seperator of ash and water 9 is by separating mechanism, sludge collector structure and carry mud scraper 10 to form the technology that adopts the uncommon patent right of Yang Chun, and patent No. ZL95.2.38189.3 is a cover mature technology.
Plate washer 33 on difference two lower baffles 34 and two enters water tank 23 dashpots 35 with seperator of ash and water 9 primary waters in the described three grades of precipitation water tanks 23, water tank, and by one-level, secondary, three grades of precipitations, the post precipitation clear water is thrown spray system into again by water pump 22 respectively.The trace mortar is cut down by 3 balls to be formed sewerage 24 and enters sewer.
According to the cement equipment shaft kiln water dedusting double tower retracting device of such scheme design, owing to adopted numerous deduster principles, the comprehensive improvement structure of moisture trap principle makes and advances expansion chamber from flue gas of shaft kiln and handle and enter double tower body flue gas earlier from bottom to top.Prolonged the time of flue gas at expansion chamber and double tower intracoelomic cavity.Guide for kiln face reversing smoke free is provided with the high pressure positive blower jet, establish numerous moisture films again simultaneously in body of the tower, the acting in conjunction of spray spout system makes the abundant and dust effect of kiln water body branch energy in the whole double tower body.Therefore, reach high efficiency dedusting effect.
Accompanying drawing 1 is the utility model structural representation.
Accompanying drawing 2 is the utility model structure sediment chamber spraying schematic diagram.
Accompanying drawing 3 is that Figure 1A-A is to cutaway view.
Accompanying drawing 4 is moisture film and spray structure schematic diagram.
Accompanying drawing 5 is following spray structure schematic diagram.
Accompanying drawing 6 is three grades of precipitation water tank schematic diagrames.
Each part of water deduster double tower retracting device member 1, dual-tower dust removal device 18, high pressure positive blower 2, moisture film pipe 19, gas seperator of ash and water.3, upper mounting plate 20, Chimney cover 4, stair 21, clear water pipe 5, dish cuts down 22, water pump 6, lower platform 23, three grades of precipitation water tanks 7, former flue 24, blowdown cuts down 8, blow-off pipe 25, filter 9, seperator of ash and water 26, three cylinder piston pumps 10, scraper plate machine 27, spraying system 11, chute 28, nozzle 12, former biaxial rneader 29, former expansion chamber 13, switch board 30, smoke-intake pipe 14, last spray 1 31, jet blower 15, last spray 2 32, blast pipe 16, jet pipe 33, overhead gage 17, under spray 34, lower baffle plate
35, dashpot
When whole dedusting and retracting device parts break down must interim halt system operation, when carrying out troubleshooting, can continue production for guaranteeing the machine shaft kiln, can stop charging pump work, enter deduster by former expansion chamber system and enter atmosphere.
Use said apparatus, can carry out 3 grades of dedusters in system, good dedusting effect can be controlled at dust emission and is lower than 150/mg/Nm
3, discharging standards, efficiency of dust collection reaches 98% with first-class advantage.Water system does not have obstruction, no dust stratification, does not have and return the cigarette phenomenon, stable and reliable operation, and equipment is light, easily Installation and Debugging, and small investment, price is former single tower water deduster 2/3, and power consumption is that single tower 2/3 capacity makes full use of former expansion chamber, and mounting material is few, and the time is short.Operating maintenance is easier.The cement plant can be accepted on price, is novel vertical kiln deduster ideal equipment.The utility model can reduce to airborne release Dust Capacity 3000-4000T every year, and 8.8 ten thousand T machine shaft kilns have good social benefit, dust under removing simultaneously, can directly make cement producting material after the recovery,, can be ten thousand yuan of the wound direct economic benefit 18-24 of enterprise every year by 60 yuan per ton.
Claims (1)
1, cement equipment shaft kiln water dedusting double tower retracting device is characterized in that:
A. described double tower body (1), two flues (7) that join through both sides and secant-shaped and be located at the machine shaft kiln, expansion chamber (29) smokejack (7) joins, described flue (7) connects slightly downward double tower body (1) and tilts, its top is provided with Chimney cover, double tower body (1) bottom is respectively equipped with a high pressure positive blower (18), tangentially enter gas seperator of ash and water (19) by air inlet pipe (32) a plurality of jet blowers (31) are housed, the top is provided with jet pipe (16), is provided with a controlled dish in the pipe and cuts down (5).Endless tube a plurality of nozzles spray (15,16,17) the double tower top of arranging is housed outside double tower body (1) a plurality of moisture film nozzles are housed;
B. be provided with a plurality of spray nozzles (27) in the expansion chamber (29).Then to three cylinder piston pumps (26), water under high pressure is by spraying system (27) through filter (25) for clear water pipe (21);
C. seperator of ash and water (9) is by separating mechanism, and sludge collector structure and conveying mud scraper mechanism (10) form, and adopt the technology of Yang Chunxi patent right, patent No. ZL95.2.38189.3;
D. three grades of precipitation water tanks (23), respectively by plate washer (33) on two lower baffles (34) and two, primary water enters dashpot (35) in the water tank, enters one-level, secondary, three grades of precipitations respectively, and mortar is cut down by 3 balls to be formed sewerage (24) and enters sewer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00235442 CN2420508Y (en) | 2000-05-29 | 2000-05-29 | Water dust-removing double tower recovery device for cement machine shaft kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00235442 CN2420508Y (en) | 2000-05-29 | 2000-05-29 | Water dust-removing double tower recovery device for cement machine shaft kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2420508Y true CN2420508Y (en) | 2001-02-21 |
Family
ID=33597234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00235442 Expired - Fee Related CN2420508Y (en) | 2000-05-29 | 2000-05-29 | Water dust-removing double tower recovery device for cement machine shaft kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2420508Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1292823C (en) * | 2003-10-15 | 2007-01-03 | 广东新明珠陶瓷有限公司 | Atomized spray dust-removing system of smoke settling chamber for spray drying tower |
| CN103599675A (en) * | 2013-12-04 | 2014-02-26 | 南京深宁磁电有限公司 | Tail gas dedusting device of magnetic material presintering rotary kiln |
-
2000
- 2000-05-29 CN CN 00235442 patent/CN2420508Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1292823C (en) * | 2003-10-15 | 2007-01-03 | 广东新明珠陶瓷有限公司 | Atomized spray dust-removing system of smoke settling chamber for spray drying tower |
| CN103599675A (en) * | 2013-12-04 | 2014-02-26 | 南京深宁磁电有限公司 | Tail gas dedusting device of magnetic material presintering rotary kiln |
| CN103599675B (en) * | 2013-12-04 | 2015-03-25 | 南京深宁磁电有限公司 | Tail gas dedusting device of magnetic material presintering rotary kiln |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |