CN1298087A - Wet dedusting tower for vertical cement kiln - Google Patents
Wet dedusting tower for vertical cement kiln Download PDFInfo
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- CN1298087A CN1298087A CN99125209A CN99125209A CN1298087A CN 1298087 A CN1298087 A CN 1298087A CN 99125209 A CN99125209 A CN 99125209A CN 99125209 A CN99125209 A CN 99125209A CN 1298087 A CN1298087 A CN 1298087A
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- gas wash
- kiln
- tower
- cement
- vertical
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
Wet dedusting tower as one special cleaning and filtering mechanism to separate and recover dust from fume is respectively installed on two sides of chimney of vertical cement kiln. It consists of casing, nozzles, water pipe, steel pipe grill, sewage trough, etc. It traps and recovers dust from fume of vertical cement kiln and makes fume exhaust reach related standard by means of the comprehensive technological process including showering, atomizing, water film treatment, steel pipe grill treatment, etc.
Description
The invention belongs to dust is separated the cleaning and filtering isolated plant technical field that reclaims from flue gas.
A large amount of dust in process of production, is contained in the middle-size and small-size cement plant of domestic employing shaft kiln production line in the flue gas of discharge, environment is caused severe contamination.To the processing of the flue gas of vertical cement kiln that surpasses discharging standards, can adopt sack cleaner, electrostatic precipitator to solve.But this two classes deduster exists the problem that investment is big, operating cost is high.Development in recent years a kind of water handle the wet scrubber (tower) of flue gas of shaft kiln.Wherein more novel have " cement in vertical kiln wet scrubber " (Chinese patent ZL94238057.6).This " cement in vertical kiln wet scrubber " is to adopt the technology of jet, whirlwind, moisture film to separate dust in flue gas.Confirm that use this wet scrubber to handle the flue gas of shaft kiln, dust content is not reach 150mg/NM in the flue gas in actual the use
3Standard, even do not reach 400mg/NM
3Standard.
Purpose of the present invention is a shortcoming of attempting to overcome above-mentioned wet scrubber, adopts to increase injection flow rate, increases shower nozzle and increases the grid that steel pipe is formed, thereby a kind of novel wet dedusting tower for vertical cement kiln is provided.
Structure of the present invention is provided by following examples and accompanying drawing.
Fig. 1 is the schematic diagram of the wet dedusting tower for vertical cement kiln of proposition according to the present invention
Fig. 2, Fig. 3 are the plane and the profiles of steel pipe grid mount pad [11].
Describe structure of the present invention and working condition in detail below in conjunction with accompanying drawing 1, Fig. 2, Fig. 3.
As shown in Figure 1, this wet dedusting tower profile is the L type, is loaded on two sides of the original chimney of shaft kiln [1], each root chimney [1] bag two gas wash tower [2].Every shaft kiln has two chimneys [1], then adorns four gas wash towers [2] altogether.Adorn a butterfly valve [3] at shaft kiln chimney [1] middle part.Between chimney [1] and gas wash tower [2], adorn a slide valve [4].
When cement in vertical kiln is produced, earlier the butterfly valve [3] on the chimney [1] to cut out.The flashboard [5] of the slide valve [4] of gas wash tower [2] bottom is sling with shutter opening and closing device [6], makes slide valve [4] become opening.After flue gas of shaft kiln enters gas wash tower [2], under the current of streamlined high velocity projector [7] ejection drive and under the draft effect of gas wash tower [2], flue gas passes the grid [8] that becomes certain inclination angle installed steel pipe to form with the plane in the gas wash tower [2], enters atmosphere from gas wash tower [2] top then.
Exhaust gas dust mixes mutually with a large amount of vaporific fine water droplets of shower nozzle [7] ejection and collides in gas wash tower [2], flows into the sump [9] of gas wash tower [2] bottom with water.The water under high pressure of shower nozzle [7] is supplied with by feed pipe [12].Pass in the flue gas of water smoke, dust reduces to some extent, but does not reach requirement.Therefore, the grid [8] that is rearranged by certain size by steel pipe has been installed at the middle part of gas wash tower [2].Under the effect of shower nozzle [7] ejection water smoke, the steel tube surface of grid [8] moisture film that flowing.When flue gas passed grid [8], residue big multipotency of dust and steel pipe collided in the flue gas, with the effect of steel tube surface moisture film, flowed into sump [9].Sump [9] outlet feeds solid-liquid separating equipment.Pass the flue gas of grid [8], after containing dust and reduce in a large number wherein, by entering atmosphere above the gas wash tower [2].The maintenance of shower nozzle [7] is changed and can be undertaken by flange [10] at gas wash tower [2] in addition.Flange [10] is welded in front, the back side and the reverse side of gas wash tower [2] as shown in Figure 1, and each face is 10, and a gas wash tower [2] is pacified 30 flanges [10] altogether.
As Fig. 2, shown in Figure 3, steel pipe grid [8] is to be loaded on the grid seat [11].Each gas wash tower [2] is installed two grid seats [11].The row of grid seat [11], row size determine as required, can not overstocked (causing dust to stop up easily), can not be thin excessively (when flue gas passes, dust not and grid [8] collision of band moisture film).
Wet dedusting tower for vertical cement kiln of the present invention has the following advantages:
1, dust removal tower structure is simple, and maintenance management is convenient.
2, dust removal mechanism is to have used multiple complex arts such as spray, spraying, moisture film in the gas wash tower, and efficiency of dust collection improves greatly.
3, the dedusting effect of gas wash tower has been strengthened in the utilization of steel pipe grid, further improves efficiency of dust collection.
4, former machine shaft kiln has only two chimneys now to adorn four gas wash towers, and natural air exhaust power greatly strengthens, and helps shaft kiln production.
Claims (4)
1, a kind of wet dedusting tower for vertical cement kiln is characterized in that:
A. gas wash tower [2] is loaded on shaft kiln chimney [1] both sides, gas wash tower [2] bottom has its inside of a slide valve [4] that shower nozzle [7] and steel pipe grid [8] are arranged, sump [9] is arranged at the gas wash tower bottom, and the outside is equipped with maintenance, is changed shower nozzle [7] flange [10] and high service pipe [12].
One butterfly valve [3] is installed on chimney of b. former cement in vertical kiln, two shutter opening and closing devices [6] are installed.
2, device according to claim 1 is characterized in that plane 2, the section of steel pipe grid seat [11] is shown in Figure 3, arrange size can not be overstocked can not be thin excessively.
3, according to claim 1,2 described devices, every original two stacks of cement in vertical kiln [1], every chimney [1] will be adorned 2 gas wash towers, and every cement in vertical kiln is adorned four gas wash towers altogether.
4, according to claim 1,2 described devices, gas wash tower [2] profile is into L shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99125209A CN1298087A (en) | 1999-11-29 | 1999-11-29 | Wet dedusting tower for vertical cement kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99125209A CN1298087A (en) | 1999-11-29 | 1999-11-29 | Wet dedusting tower for vertical cement kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1298087A true CN1298087A (en) | 2001-06-06 |
Family
ID=5283795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99125209A Pending CN1298087A (en) | 1999-11-29 | 1999-11-29 | Wet dedusting tower for vertical cement kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1298087A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101757823A (en) * | 2010-02-10 | 2010-06-30 | 长沙有色冶金设计研究院 | Bypass wet dedusting system |
| CN102311237A (en) * | 2011-06-03 | 2012-01-11 | 太原钢铁(集团)有限公司 | Method for repairing mechanical shaft kiln lining |
| CN112665373A (en) * | 2020-11-23 | 2021-04-16 | 安徽金岩高岭土科技有限公司 | Improvement of bottom support beam and smoke exhaust system of vertical kiln |
| CN112933807A (en) * | 2021-02-05 | 2021-06-11 | 白峰肖 | Dust removal pipeline for cement production |
-
1999
- 1999-11-29 CN CN99125209A patent/CN1298087A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101757823A (en) * | 2010-02-10 | 2010-06-30 | 长沙有色冶金设计研究院 | Bypass wet dedusting system |
| CN102311237A (en) * | 2011-06-03 | 2012-01-11 | 太原钢铁(集团)有限公司 | Method for repairing mechanical shaft kiln lining |
| CN102311237B (en) * | 2011-06-03 | 2013-02-27 | 太原钢铁(集团)有限公司 | Method for repairing mechanical shaft kiln lining |
| CN112665373A (en) * | 2020-11-23 | 2021-04-16 | 安徽金岩高岭土科技有限公司 | Improvement of bottom support beam and smoke exhaust system of vertical kiln |
| CN112933807A (en) * | 2021-02-05 | 2021-06-11 | 白峰肖 | Dust removal pipeline for cement production |
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| PB01 | Publication | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Peiyao Document name: Deemed as a notice of withdrawal |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |