CN2799099Y - Full automatic powdered coal sieve - Google Patents
Full automatic powdered coal sieve Download PDFInfo
- Publication number
- CN2799099Y CN2799099Y CN 200520083741 CN200520083741U CN2799099Y CN 2799099 Y CN2799099 Y CN 2799099Y CN 200520083741 CN200520083741 CN 200520083741 CN 200520083741 U CN200520083741 U CN 200520083741U CN 2799099 Y CN2799099 Y CN 2799099Y
- Authority
- CN
- China
- Prior art keywords
- foreign material
- pulverized coal
- screen cloth
- full automatic
- coal sieve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The utility model discloses a full automatic powdery coal screen which comprises a box body, wherein the upper part of the box body is provided with a feeding hole and the bottom part is provided with a discharge hole. A vibrating screen mesh is transversely partitioned between the feeding hole and the discharge hole; the inside of the box body is laid with an air main at the part along one side part of the screen mesh of the feeding hole, and the box body is provided with a sundries collecting hole at the part of one side corresponding to the screen mesh; the blowing of an upcast ventilation pipe faces the sundries collecting hole, and the sundries collecting hole is provided with a sundries collecting device; the feeding hole and the discharge hole of the box body are respectively matched with an opening and closing valve. The utility model can realize the purpose that screened sundries can be automatically cleaned and collected no matter whether the powdery coal screen is in a vibrating state or in a stop state, and the cleaning is thorough. Frequently opening and closing a screen box at the time of manual cleaning in old times can be avoided, the tightness of the screen box can be ensured and the maintenance is easy.
Description
Technical field
The utility model 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 purpose of this utility model is the defective at above-mentioned existing coal dust vibratory sieve technology, provides 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.
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 utility model 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 utility model adopts wind-force cleaning and collect foreign material automatically, 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 utility model, 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 further improvement of the utility model, 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 utility model 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.
Below in conjunction with accompanying drawing the utility model is further described:
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is an A-A cutaway view among Fig. 1.
The specific embodiment
As shown in the figure, the utility model comprises 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 utility model 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 200520083741 CN2799099Y (en) | 2005-04-30 | 2005-04-30 | Full automatic powdered coal sieve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520083741 CN2799099Y (en) | 2005-04-30 | 2005-04-30 | Full automatic powdered coal sieve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2799099Y true CN2799099Y (en) | 2006-07-26 |
Family
ID=36841597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520083741 Expired - Fee Related CN2799099Y (en) | 2005-04-30 | 2005-04-30 | Full automatic powdered coal sieve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2799099Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586200A (en) * | 2013-11-18 | 2014-02-19 | 芜湖万向新元环保科技有限公司 | Unpacking bucket with downwards turned door |
| CN106076850A (en) * | 2016-08-04 | 2016-11-09 | 北京建工资源循环利用投资有限公司 | A kind of vibrosieve and the garbage sorting device of wind-force |
| CN107197645A (en) * | 2017-06-27 | 2017-09-26 | 中国农业科学院作物科学研究所 | One kind is applied to the three-dimensional uniform high stable seeding apparatus of wheat |
-
2005
- 2005-04-30 CN CN 200520083741 patent/CN2799099Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586200A (en) * | 2013-11-18 | 2014-02-19 | 芜湖万向新元环保科技有限公司 | Unpacking bucket with downwards turned door |
| CN106076850A (en) * | 2016-08-04 | 2016-11-09 | 北京建工资源循环利用投资有限公司 | A kind of vibrosieve and the garbage sorting device of wind-force |
| CN106076850B (en) * | 2016-08-04 | 2018-01-05 | 北京建工资源循环利用投资有限公司 | A kind of vibrosieve and wind-force and garbage sorting device |
| CN107197645A (en) * | 2017-06-27 | 2017-09-26 | 中国农业科学院作物科学研究所 | One kind is applied to the three-dimensional uniform high stable seeding apparatus of wheat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1686623A (en) | Full automatic pulverized coal sieve | |
| CN108150119B (en) | Dry type filtering and dust removing system for mining drilling hole | |
| CN208541919U (en) | A kind of high-efficient cloth-bag dust precipitator | |
| CN2799099Y (en) | Full automatic powdered coal sieve | |
| CN207253923U (en) | A kind of high density duster for filter tube of dust | |
| CN2845891Y (en) | Air filter cloth bag cleaner | |
| CN201287012Y (en) | Pulse bag type dust collector | |
| CN201244416Y (en) | Cloth bag dust collector for removing ash with sound wave | |
| CN209005408U (en) | A kind of pulse bag type dust collector | |
| CN108421362A (en) | A kind of industrial dedusting unit | |
| CN209549981U (en) | Vibrating screen back-blowing device | |
| CN211051109U (en) | Pulse dust collector | |
| CN108636045A (en) | A kind of dust removal unit | |
| CN212327681U (en) | Bag-type dust collector capable of rapidly cleaning dust | |
| CN209109358U (en) | Has effects that laborsaving, dedusting calcium carbonate crushing plant | |
| CN109772697A (en) | Vibrating screen back-blowing device | |
| CN206372626U (en) | A kind of soot cleaning system for being applied to efficient damp proof ultra-purifying dust collector | |
| CN219092744U (en) | Negative pressure screen analysis instrument | |
| CN214526797U (en) | Pneumatic ash conveying device with reverse blowing cleaning mechanism | |
| CN219441984U (en) | Safe and efficient clean production device for reducing crushing and screening dust | |
| CN218078980U (en) | Automatic dust removing mechanism for polypropylene melt-blowing processing | |
| CN109647076A (en) | A kind of Side-spray low-pressure-impulsebag-type bag-type dust collector | |
| CN215232781U (en) | A pulse dust shaker for feed production | |
| CN208975369U (en) | Dust-extraction unit is used in a kind of crushing of Chinese medicine | |
| CN208944801U (en) | A kind of Y type air inlet pipeline for storage battery production equipment |
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 |