CN1686623A - Full automatic pulverized coal sieve - Google Patents
Full automatic pulverized coal sieve Download PDFInfo
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- CN1686623A CN1686623A CN 200510043403 CN200510043403A CN1686623A CN 1686623 A CN1686623 A CN 1686623A CN 200510043403 CN200510043403 CN 200510043403 CN 200510043403 A CN200510043403 A CN 200510043403A CN 1686623 A CN1686623 A CN 1686623A
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- pulverized coal
- foreign material
- screen cloth
- full automatic
- sieve
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Abstract
A full-automatic coal powder sieve is composed of a case body with material feeding inlet on its top and material discharging outlet on its bottom, a transverse vibrating sieve in said case, a master air blowing pipe, an impurities gathering outlet opposite to said air blowing pipe, and an impurity collector.
Description
Technical field
The present invention relates to a kind of pulverized coal sieve that is used for cleaning automatically and collects the coal dust foreign material.
Background technology
In industries such as metallurgy, building materials, electric power, be the raising efficiency of combustion, reduce cost and adopt coal spraying process in a large number, and the quality of quality of pc directly influences even coal powder injection effect.But grinding in the process of coal dust, be entrained in article such as wooden unit in the raw coal, woven bag and grind, become the floccules such as wood chip, fiber of lighter weight, be commonly called as and be " chicken feather " through the high strength backing of coal pulverizer.It is agglomerating that these sweep along the foreign material of the picture " chicken feather " in coal dust easily to gather in pipeline storage or course of conveying, if they are not in time cleared, meeting blocking pipe and shower nozzle influence normal coal dust conveying and winding-up, delay production.In order effectively to remove these foreign material, avoid influence to produce, after coal powder grinding is good, install the coal dust vibratory sieve that these foreign material can be screened in place additional.Existing most pulverized coal sieve is to develop from oarse-grained vibratory sieve, coal dust is by sieving thoroughly in the sieve aperture of vibration screen, and the foreign material that can not sieve are thoroughly blocked by screen cloth, become oversize, in the pulverized coal sieve course of work, for preventing the generation of phenomenons such as plug-hole, the operate as normal of assurance pulverized coal sieve, the foreign material that need in time will be trapped on the screen cloth are cleaned out, and normally adopt the mode of clearing up manually after the shutdown to clear up at present, mainly there is following shortcoming in it: 1, because these foreign material run-of-the-mills are very light and force to take part in coal dust, and adhesive force is stronger, tends to stop up or hang in the sieve aperture manually cleaning, be difficult to thorough removing, effect is relatively poor; 2, for convenient cleaning manually, often on screen box, open the clean-up port, after pulverized coal sieve quits work, open the clean-up port and clear up manually, close the clean-up port after the cleaning again, switch is frequent, cause the sieve seal poor, cause leakage of pulverized coal and hidden danger easily; Screen cloth must stop vibration when 3, clearing up, and clearance time is longer, delays production.
Summary of the invention
The objective of the invention is to defective, provide a kind of and can clear up, collect foreign material automatically and clear up thoroughly the full automatic pulverized coal sieve that is easy to safeguard simple in structure at above-mentioned existing coal dust vibratory sieve technology.
Its technical solution is as follows:
A kind of full automatic pulverized coal sieve, it includes a casing, described casing top has charging aperture, the bottom has discharging opening, and tabula has screen cloth between charging aperture in the described casing and the discharging opening, and the side portion along screen cloth in the described casing is laid with air main, on the casing of corresponding another side portion of screen cloth, be provided with foreign material and collect mouth, the air outlet of described air main is collected mouth towards foreign material, and described foreign material are collected mouth and are furnished with the foreign material gathering-device, and the charging aperture of described casing and discharging opening are furnished with opening/shutting valve respectively.
The present invention is in when work, and coal dust drops down onto on the vibration screen after entering casing by charging aperture, and coal dust sieves thoroughly via the sieve aperture of screen cloth, falls into discharging opening, and foreign material such as wood chip, fiber can not be through saturating sieve, screenedly comes out to become oversize.At first with the charging aperture valve closing, stop coal dust and enter during cleaning, treat on the screen cloth coal dust shake clean after, close the valve of discharging opening.Open source of the gas this moment, open at the air outlet on the airduct and begin to collect a mouthful blowing towards foreign material along plane on the screen cloth, the foreign material that hang over or get lodged in the sieve aperture are blown afloat, make it collect mouthful place's motion to foreign material, the foreign material that blow off are collected in mouthful foreign material gathering-device of lower end connection, wind sees through from collecting the foreign material gathering-device, and foreign material are then stayed in the collecting bag, collect.The foreign material on the screen cloth are cleaned out in the air-supply that airduct is continuous, and the sieve aperture that stops up in screening process is emptied.After cleaning is finished, then close source of the gas, out-of-blast, close the valve that foreign material are collected mouth, open the valve at discharging opening place this moment earlier, opens the valve of charging aperture again, recovers coal dust and enter compass screen surface, continues screening.The present invention adopts automatically cleaning and collect foreign material of wind-force, and is simple in structure and cleaning effect good, saving of work and time, when having avoided manual cleaning foreign material, to the normally-open normally-close of screen box, guaranteed the seal of screen box, and screen box and screen cloth do not need failure of oscillation can finish cleaning in scale removal process.
As improvement of the present invention, the below of casing internal vibration screen cloth is provided with secondary airduct, and the wind of secondary airduct is to the screen cloth bottom surface, and blows out from sieve aperture.Because this pair airduct is to up-draught from the screen cloth below, can will blow from bottom to top attached to the foreign material in the sieve aperture, thereby the foreign material that will be blocked in the sieve aperture upwards blow out sieve aperture, and air main guarantees that the foreign material that blown afloat move to foreign material collection mouthful direction, make cleaning more thorough simultaneously.
As a further improvement on the present invention, described casing charging aperture and discharging opening are furnished with respectively and are flexible coupling and respective fixation partly connects.Be the influence of the vibration in the elimination pulverized coal sieve course of work to the part that is connected and fixed with it, the present invention adopts and is flexible coupling, the material that material can be selected good damping effect such as rubber for use and have better pliability and sealing, guarantee in the pulverized coal sieve course of work steadily, safety.
Above-mentioned screen cloth is made by the steel plate that has sieve aperture.Intensity height, not yielding helps with the wind-force cleaning, and convenient fixing in screen box.
The present invention is further illustrated below in conjunction with accompanying drawing:
Description of drawings
Fig. 1 is the structural representation of one embodiment of the present invention;
Fig. 2 is an A-A cutaway view among Fig. 1.
The specific embodiment
As shown in the figure, the present invention includes casing 1, the charging aperture 2 that connects feeding device is arranged at the top of casing 1, discharging opening 3 is arranged at the bottom, tabula has vibration screen 4 between casing 1 inner charging aperture 2 and the discharging opening 3, and the casing of corresponding vibration screen 4 one side portion is provided with air main 5, has foreign material on the casing of corresponding vibration screen 4 opposite sides and collects mouth 7, air main 5 is located at the top of vibration screen 4, and its air outlet 51 is collected the direction of mouth 7 towards foreign material; In the present embodiment, also be provided with secondary airduct 6 below vibration screen 4, its air-out direction is from bottom to top, and air main 5 is connected external air source 9 respectively with secondary airduct 6, and source of the gas can adopt high-pressure inert gas; Foreign material are collected mouthful 7 limit portions along vibration screen 4 and are offered, length should be slightly larger than the length of side of vibration screen 4, foreign material are collected mouth 7 and are connected with dust settling pocket 71 and can be furnished with opening/shutting valve 72, opening/shutting valve 72 is closed when pulverized coal sieve is worked, guarantee the sealing of screen box 1 and prevent that coal dust from entering dust settling pocket 71, open when carrying out the wind-force cleaning; The rubber bellows 22,32 that charging aperture 2 and discharging opening 3 are furnished with opening/shutting valve 21,31 respectively and can connect with miscellaneous part.
As shown in Figure 2, secondary airduct 6 can be horizontally set with below screen cloth, and respectively there is the wind deflector 61 of a corresponding oblique setting its both sides, and the body both sides of secondary airduct 6 have air outlet 62, and air outlet 62 is slightly towards oblique below.Like this, the wind that secondary airduct 6 is blown out by air outlet 62 blows to earlier on the wind deflector 61 of both sides, then by wind deflector 61 refractions vibration screen 4 upward, has so both guaranteed the air-out direction of secondary airduct 6, has avoided coal dust to stop up air outlet 62 again.
The present invention is not limited in above a kind of embodiment, and for example its major and minor airduct 5,6 also can have other conspicuous forms, as long as can guarantee its air-out direction; The dust settling pocket that its foreign material are collected mouthful 7 places also can adopt sack cleaner.
Claims (10)
1, a kind of full automatic pulverized coal sieve, it includes a casing, described casing top has charging aperture, the bottom has discharging opening, tabula has vibration screen between charging aperture in the described casing and the discharging opening, it is characterized in that: the side portion along screen cloth in the described casing is laid with air main, on the casing of corresponding another side portion of screen cloth, be provided with foreign material and collect mouth, the air outlet of described air main is collected mouth towards foreign material, described foreign material are collected mouth and are furnished with the foreign material gathering-device, and the charging aperture of described casing and discharging opening are furnished with opening/shutting valve respectively.
2, full automatic pulverized coal sieve according to claim 1 is characterized in that: the below of described casing internal vibration screen cloth is provided with secondary airduct, and the wind of secondary airduct is to the screen cloth bottom surface, and blows out from sieve aperture.
3, full automatic pulverized coal sieve according to claim 1 and 2 is characterized in that: described foreign material gathering-device is the dust settling pocket that is movably connected on the foreign material collection mouth.
4, full automatic pulverized coal sieve according to claim 1 and 2 is characterized in that: described foreign material gathering-device is one to be connected in the bag-type dust case that foreign material are collected mouthful.
5, full automatic pulverized coal sieve according to claim 1 and 2 is characterized in that: described casing charging aperture and discharging opening are furnished with the flanged (FLGD) hose connector in two ends respectively.
6, full automatic pulverized coal sieve according to claim 3 is characterized in that: described casing charging aperture and discharging opening are furnished with the flanged (FLGD) hose connector in two ends respectively.
7, full automatic pulverized coal sieve according to claim 2 is characterized in that: described secondary airduct is horizontally set with below screen cloth, and respectively there is the wind deflector of a corresponding oblique setting its both sides, and the body both sides of secondary airduct have air outlet, and described air outlet is slightly towards oblique below.
8, full automatic pulverized coal sieve according to claim 4 is characterized in that: described secondary airduct is horizontally set with below screen cloth, and respectively there is the wind deflector of a corresponding oblique setting its both sides, and the body both sides of secondary airduct have air outlet, and described air outlet is slightly towards oblique below.
9, full-automatic pulverized coal sieve automatically according to claim 1 and 2, it is characterized in that: described screen cloth is made by steel plate, has sieve aperture on it.
10, automatic cleaning pulverized coal sieve according to claim 3, it is characterized in that: described screen cloth is made by steel plate, has sieve aperture on it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510043403 CN1686623A (en) | 2005-04-30 | 2005-04-30 | Full automatic pulverized coal sieve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510043403 CN1686623A (en) | 2005-04-30 | 2005-04-30 | Full automatic pulverized coal sieve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1686623A true CN1686623A (en) | 2005-10-26 |
Family
ID=35304665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510043403 Pending CN1686623A (en) | 2005-04-30 | 2005-04-30 | Full automatic pulverized coal sieve |
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| CN (1) | CN1686623A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920244A (en) * | 2010-03-25 | 2010-12-22 | 河南太行振动机械股份有限公司 | Totally-enclosed environment-friendly net vibrating screen |
| CN102166569A (en) * | 2010-12-27 | 2011-08-31 | 本钢板材股份有限公司 | Combined device for screening pulverized coal |
| CN102784756A (en) * | 2012-07-24 | 2012-11-21 | 苏州市华元化工有限公司 | Material culling device |
| CN103272772A (en) * | 2013-03-21 | 2013-09-04 | 南京凯盛国际工程有限公司 | Novel screening anti-blocking device |
| CN104259098A (en) * | 2014-09-02 | 2015-01-07 | 江西稀有稀土金属钨业集团有限公司 | Screen cloth replacing method and replacing vehicle |
| CN107199174A (en) * | 2017-07-19 | 2017-09-26 | 杨艺豪 | A kind of coal production sorting unit |
| CN107879028A (en) * | 2017-12-01 | 2018-04-06 | 中冶焦耐(大连)工程技术有限公司 | A kind of high-temperature material Sealed sifting transportation integration apparatus |
| CN108020492A (en) * | 2017-05-12 | 2018-05-11 | 北京华索科技股份有限公司 | Grain size analysis system |
| CN108620332A (en) * | 2018-04-27 | 2018-10-09 | 和县创智科技信息服务有限公司 | A kind of impurity recovery structure of agricultural material screening machine |
| CN108855448A (en) * | 2018-06-28 | 2018-11-23 | 泾县泾川提魁茶叶有限公司 | A kind of pulverizer that can screen tealeaves |
| CN108855449A (en) * | 2018-06-28 | 2018-11-23 | 泾县泾川提魁茶叶有限公司 | A kind of efficient tea pulverizer |
| CN108883436A (en) * | 2016-01-22 | 2018-11-23 | 凯登拉莫 | Separation equipment |
| CN111359869A (en) * | 2020-02-26 | 2020-07-03 | 江苏鑫华半导体材料科技有限公司 | Electronic grade polycrystalline silicon screening device and method |
| CN115400947A (en) * | 2022-09-23 | 2022-11-29 | 重庆钢铁股份有限公司 | Device and method for automatically purging lump ore vibrating screen |
-
2005
- 2005-04-30 CN CN 200510043403 patent/CN1686623A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920244B (en) * | 2010-03-25 | 2012-10-03 | 河南太行振动机械股份有限公司 | Totally-enclosed environment-friendly net vibrating screen |
| CN101920244A (en) * | 2010-03-25 | 2010-12-22 | 河南太行振动机械股份有限公司 | Totally-enclosed environment-friendly net vibrating screen |
| CN102166569A (en) * | 2010-12-27 | 2011-08-31 | 本钢板材股份有限公司 | Combined device for screening pulverized coal |
| CN102784756A (en) * | 2012-07-24 | 2012-11-21 | 苏州市华元化工有限公司 | Material culling device |
| CN103272772A (en) * | 2013-03-21 | 2013-09-04 | 南京凯盛国际工程有限公司 | Novel screening anti-blocking device |
| CN104259098A (en) * | 2014-09-02 | 2015-01-07 | 江西稀有稀土金属钨业集团有限公司 | Screen cloth replacing method and replacing vehicle |
| CN104259098B (en) * | 2014-09-02 | 2017-12-22 | 江西江钨浩运科技有限公司 | A kind of screen cloth replacing options and more change trains |
| CN108883436A (en) * | 2016-01-22 | 2018-11-23 | 凯登拉莫 | Separation equipment |
| CN108020492A (en) * | 2017-05-12 | 2018-05-11 | 北京华索科技股份有限公司 | Grain size analysis system |
| CN108020492B (en) * | 2017-05-12 | 2024-04-30 | 北京华索科技股份有限公司 | Particle size analysis system |
| CN107199174A (en) * | 2017-07-19 | 2017-09-26 | 杨艺豪 | A kind of coal production sorting unit |
| CN107879028A (en) * | 2017-12-01 | 2018-04-06 | 中冶焦耐(大连)工程技术有限公司 | A kind of high-temperature material Sealed sifting transportation integration apparatus |
| CN108620332A (en) * | 2018-04-27 | 2018-10-09 | 和县创智科技信息服务有限公司 | A kind of impurity recovery structure of agricultural material screening machine |
| CN108855449A (en) * | 2018-06-28 | 2018-11-23 | 泾县泾川提魁茶叶有限公司 | A kind of efficient tea pulverizer |
| CN108855448A (en) * | 2018-06-28 | 2018-11-23 | 泾县泾川提魁茶叶有限公司 | A kind of pulverizer that can screen tealeaves |
| CN111359869A (en) * | 2020-02-26 | 2020-07-03 | 江苏鑫华半导体材料科技有限公司 | Electronic grade polycrystalline silicon screening device and method |
| CN115400947A (en) * | 2022-09-23 | 2022-11-29 | 重庆钢铁股份有限公司 | Device and method for automatically purging lump ore vibrating screen |
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