CN101288869A - Coat dust automatic filtering apparatus - Google Patents
Coat dust automatic filtering apparatus Download PDFInfo
- Publication number
- CN101288869A CN101288869A CNA2008100500100A CN200810050010A CN101288869A CN 101288869 A CN101288869 A CN 101288869A CN A2008100500100 A CNA2008100500100 A CN A2008100500100A CN 200810050010 A CN200810050010 A CN 200810050010A CN 101288869 A CN101288869 A CN 101288869A
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- transfer valve
- filtering apparatus
- automatic filtering
- filter screen
- branch road
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Abstract
The invention provides a pulverized coal automatic filter device, comprising two or more branches; all the branches are connected with each other at common joint; the common joint is provided with a switching valve which can only be opened with single branch; each branch is provided with a filter net and an impurity removal mechanism used for removing the impurities on the filter net. The impurity removal mechanism comprises a fan, a dedusting bag and a bracket; the fan and the dedusting bag are oppositely connected with the two sides of the bracket; the impurity removal mechanism also comprises a driving device used for delivering the filter net to a position between the fan and the dedusting bag; the driving device is connected with the filter net. The device connects one of the branch after being switched by the switching valve to carry out the filtration operation by arranging the filter net and the impurity removal mechanism on a plurality of branches, then removes the impurities on the filter nets of other branches and effectively improves the working efficiency; meanwhile, the automatic operation also reduces the labour intensity of the workers and the manpower is not needed to clean the screens.
Description
Technical field
The present invention relates to the coal mine machinery field, especially relate to a kind of coal powder filter.
Background technology
Superfine pulverized coal is the key raw material that uses in iron and steel enterprise's blast furnace, and it is to be processed through operations such as ball mill grinding, classification and sortings by lump coal, and purpose is that coal dust can fully mix with mineral powder, improves the smelting efficient of iron and steel.In the coal dust thinning process, need remove some undesired impurities of carrying secretly in the coal dust such as blade of grass, plastics, scraps of paper etc., but because their lighter weight, can not fully be filtered, and easily and coal dust mix, cause and when iron and steel smelting, stop up coal nozzle, influenced normally carrying out of smelting procedure.At present, coal dust impurity removal means commonly used adopts method for sieving more, adopting more is pulverized coal sieve, but pulverized coal sieve is undesirable for the screening effect of fine class materials such as coal dust, still contain certain impurity in the coal dust of screening back, be easy to make pulverized coal sieve blocked, make staff's pulverized coal sieve of having to frequently clear up, influence production efficiency.
Summary of the invention
The object of the present invention is to provide a kind of advantages of simplicity and high efficiency to filter the device of foreign material in the coal dust, can remove the impurity on the compass screen surface automatically, continuously coal dust is filtered.
Technical scheme of the present invention is:
A kind of coat dust automatic filtering apparatus, it comprises two or more branch roads, each branch road connects in public junction, and public junction is provided with the transfer valve of only opening single branch road, in the contaminant removal mechanism that is equipped with filter screen on each branch road and removes impurity on the filter screen.
Described contaminant removal mechanism comprises blower fan, dust settling pocket and support, the relative both sides that are connected support of blower fan with dust settling pocket, and contaminant removal mechanism comprises also filter screen is delivered to driving arrangement between blower fan and the dust settling pocket that driving arrangement is connected with filter screen.
The air outlet of described blower fan is towards the one side of the non-filtration side of filter screen.
Described transfer valve also is connected with the transfer valve driving mechanism.
Described transfer valve spool is connected by pinion and rack with the transfer valve driving mechanism; Transfer valve one end is a gear, and the tooth bar of gear and transfer valve driving mechanism is suitable, and the transfer valve driving mechanism comprises driving arrangement, and tooth bar is fixedly connected on the driving arrangement.
Described driving arrangement is a cylinder.
Described transfer valve spool is positioned at the fork that is of branch road, and the axial cross section of fork is shaped as " people " font, and fork rotates around the rotating shaft of spool.
Also be provided with pressure sensor on the described branch road.
The present invention is by being provided with filter screen and contaminant removal mechanism on a plurality of branch roads, connecting wherein by transfer valve switching back, a branch road carries out filtration work, then the impurity on the filter screen of other branch road is removed, can increase work efficiency effectively, full automatic operation has simultaneously also reduced working strength of workers, no longer needs labor cleaning's sieve.On filter screen impurity more for a long time, the pressure sensor on the branch road is the signal piping internal pressure automatically, makes the cylinder action at transfer valve place by system control device, drives transfer valve and automaticallyes switch; The rotational angle that effectively guarantees the transfer valve spool behind near the travel switch that is provided with the cylinder can be not excessive, guarantees that spool is not damaged; Make the cylinder action of contaminant removal mechanism simultaneously, the filter screen that is covered with impurity is oppositely dried with blower fan, blow away the impurity on the filter screen, and it is collected in the dust bag.Of the present invention simple in structure, the device therefor cost is lower, and overall cost is also corresponding lower, and its automaticity height has reduced working strength of workers, has very high market using value.
Description of drawings
Fig. 1 is a structural representation of the present invention,
Fig. 2 is the structure conversion schematic diagram of transfer valve 1.
The specific embodiment
As shown in Figure 1, 2, the present invention includes two arms 5 and 10 and two transfer valves 1 and 11. Transfer valve 1 and 11 is the valve of threeway; Two arms 5 and 10 are " U " shape, and its cross sectional shape is circular.Two bifurcations 22 of transfer valve 1 link to each other with an end of 5 with arm 10 respectively with 23; Equally, two of transfer valve 11 bifurcations link to each other with 10 the other end with arm 5 respectively.The crook of arm 5,10 is a circular arc, helps reducing the resistance of pulverized coal conveying.The present invention is installed in coal dust and filters between the trunk line of carrying, and is divided into left branch and right branch, and left branch comprises arm 10, and right branch comprises arm 5.
As shown in Figure 2, transfer valve 1 comprises and is located at three spools 2 between the valve port that spool 2 15 rotates around the shaft.One end of spool 2 is a fork 24, the other end is the gear 25 of an arc section, the axial cross section shape of fork 24 is " people " font, the face that the radial direction of fork 24 is circular arc help to reduce coal dust by the time resistance, the circular arc transition of arm 5 and 10 crook simultaneously also help to reduce coal dust by the time resistance.The top of fork 24 can be pressed on the inner surface of transfer valve 1 when turning to maximum angle, seals the bifurcations of leading to one of them branch road.Transfer valve 11 is identical with transfer valve 1 structure.
The middle part of arm 5 is provided with screen pack 8, and the cross sectional shape of the shape of screen pack 8 and arm 5 is suitable.Be provided with contaminant removal mechanism on the right side of screen pack 8, contaminant removal mechanism comprises support 14, and support 14 is fixedlyed connected with arm 5.Support 14 front ends are for collecting the dust bag 6 of foreign material, and the rear end is a blower fan 9.The direction of the wind that blower fan 9 blows out is opposite with the coal dust direction of motion.Contaminant removal mechanism also comprises cylinder 7, and the piston rod 26 of cylinder 7 is connected with filter screen 8, and the direction of motion of piston rod 26 is vertical with the direction of motion of coal dust in pipeline.
Each equipment and the right branch of left branch are symmetrical arranged.
During duty, cylinder 4 promotes tooth bar 3 and moves right, and then fork 24 is swung left, after piston rod touched travel switch 21, fork 24 stopped swinging, and fork 24 tops are pressed on transfer valve 1 inwall, close the branch road that leads to arm 10, open the branch road that leads to arm 5.Also swing left under cylinder 12 and tooth bar 16 effects of the spool of transfer valve 11 simultaneously is communicated with the pipeline that arm 5 leads to the trunk line outlet.
As shown in Figure 1, coal dust enters from trunk line, enters in the transfer valve 1 through the mouth of pipe 20 of transfer valve 1.Coal dust enters arm 5 then, after filter screen 8 filters, arrives transfer valve 11 along pipeline, transfers out from the trunk line outlet then.
Behind the work certain hour, filter screen 8 in the arm 5 is piled up the impurity that some is arranged, because impurity causes the pressure of arm 5 to raise to the inhibition of pipeline, when pressure is elevated to setting, pressure sensor 27 in the pipeline sends signal, control system of the present invention is received signal, this device produces following sequence of movement: cylinder 4 and 12 inflation action rapidly, tooth bar 3 and 16 driven wheel 25 and 17 immediately rotates, transfer valve 1 and 11 fork 24 and 18 swings to the right under gear 25 and 17 drives, cylinder block triggers corresponding travel switch after moving to the relevant position, and fork 24 and 18 stops swinging, and realizes the switching of branch road.At this moment, arm 5 sealing, arm 10 is opened, and coal dust begins the strainer filtering from the arm 10.After treating that the branch road switching is finished, the filter screen 8 on the arm 5 is extracted in cylinder 7 inflations to the right out, and the filtering surface of filter screen 8 is piled up the impurity that some is arranged, and blower fan 9 cleans filter screen 8 from the another side reverse air blast of filter screen 8, and impurity is blown in the dust settling pocket 6.Through after the time-delay of certain hour, cylinder 7 is counteragent once more, and the filter screen 8 after the cleaning is sent back in the arm 5.
Impurity is more on the filter screen in the left branch, and when the branch road internal pressure reached setting pressure, transfer valve 1 and 11 spool were swung left, and left branch is closed, and right branch is switched on carries out filtration work.Both sides branch road alternation has so promptly realized the automatic operation that coal dust filters.
Need to prove that at last transfer valve 1 and 11 the used pinion and rack of driving can be by the slider-crank mechanism approximate substitutions; Used each cylinder of the present invention also can be replaced by hydraulic cylinder.
Claims (9)
1, a kind of coat dust automatic filtering apparatus, it is characterized in that: it comprises two or more branch roads, each branch road connects in public junction, and public junction is provided with the transfer valve of only opening single branch road, in the contaminant removal mechanism that is equipped with filter screen on each branch road and removes impurity on the filter screen.
2, coat dust automatic filtering apparatus according to claim 1, it is characterized in that: described contaminant removal mechanism comprises blower fan, dust settling pocket and support, the relative both sides that are connected support of blower fan with dust settling pocket, contaminant removal mechanism comprises also filter screen is delivered to driving arrangement between blower fan and the dust settling pocket that driving arrangement is connected with filter screen.
3, coat dust automatic filtering apparatus according to claim 2 is characterized in that: the air outlet of described blower fan is towards the one side of the non-filtration side of filter screen.
4, coat dust automatic filtering apparatus according to claim 1 and 2 is characterized in that: described transfer valve also is connected with the transfer valve driving mechanism.
5, coat dust automatic filtering apparatus according to claim 4 is characterized in that: described transfer valve spool is connected by pinion and rack with the transfer valve driving mechanism; Transfer valve one end is a gear, and the tooth bar of gear and transfer valve driving mechanism is suitable, and the transfer valve driving mechanism comprises driving arrangement, and tooth bar is fixedly connected on the driving arrangement.
6, coat dust automatic filtering apparatus according to claim 5 is characterized in that: described driving arrangement is a cylinder.
7, coat dust automatic filtering apparatus according to claim 1 and 2 is characterized in that: described transfer valve spool is positioned at the fork that is of branch road, and the axial cross section of fork is shaped as " people " font, and fork rotates around the rotating shaft of spool.
8, coat dust automatic filtering apparatus according to claim 4 is characterized in that: described transfer valve spool is positioned at the fork that is of branch road, and the axial cross section of fork is shaped as " people " font, and fork rotates around the rotating shaft of spool.
9, coat dust automatic filtering apparatus according to claim 1 and 2 is characterized in that: also be provided with pressure sensor on the described branch road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100500100A CN101288869B (en) | 2008-06-12 | 2008-06-12 | Coat dust automatic filtering apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100500100A CN101288869B (en) | 2008-06-12 | 2008-06-12 | Coat dust automatic filtering apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101288869A true CN101288869A (en) | 2008-10-22 |
| CN101288869B CN101288869B (en) | 2011-07-20 |
Family
ID=40033414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100500100A Expired - Fee Related CN101288869B (en) | 2008-06-12 | 2008-06-12 | Coat dust automatic filtering apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN101288869B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107349717A (en) * | 2017-09-01 | 2017-11-17 | 苏州百硕自动化环保设备有限公司 | A kind of dedusting purifier |
| CN107803932A (en) * | 2017-10-24 | 2018-03-16 | 重庆建工住宅建设有限公司 | A kind of fast hard non-shrinkage concrete production equipment and its production method |
| CN105586096B (en) * | 2014-10-20 | 2018-08-17 | 航天长征化学工程股份有限公司 | Direct-acting type filtering device of gasification furnace pulverized coal conveying system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH673009A5 (en) * | 1987-01-23 | 1990-01-31 | Indupack Ag | |
| CN2156926Y (en) * | 1992-11-20 | 1994-02-23 | 鞍山钢铁公司设计研究院丹东开发区分院 | Large-chambered blowback cloth-bag dust-collector |
| DE19509059C1 (en) * | 1995-03-14 | 1996-03-14 | Wil Man Polymer Filtration Gmb | Controlled sepn. into two-stream fluid system |
| CN2823583Y (en) * | 2005-07-05 | 2006-10-04 | 刘玉良 | Two way parallel filter |
| CN201200974Y (en) * | 2008-06-12 | 2009-03-04 | 郑州大学 | Full-automatic filtration device for coal fines |
-
2008
- 2008-06-12 CN CN2008100500100A patent/CN101288869B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105586096B (en) * | 2014-10-20 | 2018-08-17 | 航天长征化学工程股份有限公司 | Direct-acting type filtering device of gasification furnace pulverized coal conveying system |
| CN107349717A (en) * | 2017-09-01 | 2017-11-17 | 苏州百硕自动化环保设备有限公司 | A kind of dedusting purifier |
| CN107803932A (en) * | 2017-10-24 | 2018-03-16 | 重庆建工住宅建设有限公司 | A kind of fast hard non-shrinkage concrete production equipment and its production method |
| CN107803932B (en) * | 2017-10-24 | 2024-03-22 | 重庆建工住宅建设有限公司 | Quick-hardening shrinkage-free concrete production equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101288869B (en) | 2011-07-20 |
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Granted publication date: 20110720 Termination date: 20120612 |