CN201284348Y - Dust removing apparatus of coal fine making and spraying system - Google Patents
Dust removing apparatus of coal fine making and spraying system Download PDFInfo
- Publication number
- CN201284348Y CN201284348Y CNU2008201551711U CN200820155171U CN201284348Y CN 201284348 Y CN201284348 Y CN 201284348Y CN U2008201551711 U CNU2008201551711 U CN U2008201551711U CN 200820155171 U CN200820155171 U CN 200820155171U CN 201284348 Y CN201284348 Y CN 201284348Y
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- China
- Prior art keywords
- coal
- cloth bag
- spraying system
- cleaning apparatus
- powder
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- 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
- 239000003245 coal Substances 0.000 title claims abstract description 67
- 239000000428 dust Substances 0.000 title claims abstract description 17
- 238000005507 spraying Methods 0.000 title claims description 16
- 239000004744 fabric Substances 0.000 claims abstract description 40
- 239000000843 powder Substances 0.000 claims description 63
- 238000004140 cleaning Methods 0.000 claims description 19
- 238000000151 deposition Methods 0.000 claims description 13
- 239000002817 coal dust Substances 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 8
- 238000007599 discharging Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 13
- 238000012545 processing Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229940098458 powder spray Drugs 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model relates to a dust removing device in a coal dust sprayed system, comprising a coal mill, a cloth bag coal dust collector, a pulverized coal feeder, a coal dust collecting bin, a coal injecting tank, an air exhauster, a chimney, a coal injecting main pipe and a blast furnace which are connected by pipelines. The top of the coal dust collect bin is provided with a mounting hole which is provided with a discharging pipeline; the discharging pipeline is connected with an inlet of the cloth bag coal dust collector; and the cloth bag coal dust collector of the top of the original coal dust collecting bin is eliminated, thus simplifying the technique equipment, saving the architectural space and reducing the investment cost.
Description
Technical field
The utility model relates to the blast furnace of metallurgical industry system, the cleaning apparatus in particularly a kind of coal fine spraying system.
Background technology
In the blast-furnace coal powder system spray system that metallurgical industry is at present adopted, on technology, will need the coal of jetting, after coal pulverizer powder process, gas, powder are separated by cloth bag collection machine, feeding machine behind the coal powder collection below cloth bag collection machine is fallen in the coal powder collection storehouse, then coal dust is discharged to the winding-up jar from collecting bin, the winding-up jar is carried to metallurgical furnace with the strength mode.When receiving from powder that cloth bag collection machine falls in the coal powder collection storehouse, and when a winding-up jar release exhaust, the blowback of winding-up line clogging, all have the gas powder to enter collecting bin, a large amount of primary mixtures that enter collecting bin need carry out separation off gas.
The method that adopts is that a sack cleaner is set on coal powder collection Cang Ding at present, carries out the gas powder by sack cleaner and separates, and the waste gas after purifying is entered atmosphere, as shown in fig. 1.Label among Fig. 1: 1 is coal pulverizer, and 2 is cloth bag collection machine, and 3 is machine supplying powder, and 4 is the coal powder collection storehouse, and 5 are the winding-up jar, and 6 is sack cleaner, and 7 is vacuum fan, and 8 is chimney, and 9 are the winding-up house steward, and 10 is blast furnace.On the coal powder collection Cang Ding in coal fine spraying system loaded down with trivial details sack cleaner is set, has increased processing unit and cost of investment, and the ventilation of sack cleaner is less, it is bigger to contain powder concentration.
The utility model content
Task of the present utility model provides the cleaning apparatus in a kind of improved coal fine spraying system, it has solved existing cleaning apparatus is that loaded down with trivial details sack cleaner is set on coal powder collection Cang Ding, increase processing unit and cost of investment thus, and the sack cleaner ventilation little, contain the big problem of powder concentration.
Technical solution of the present utility model is as follows:
Cleaning apparatus in a kind of coal fine spraying system, it comprises coal pulverizer, cloth bag collection machine, machine supplying powder, coal powder collection storehouse, winding-up jar, vacuum fan, chimney, winding-up house steward and blast furnace, they are connected by pipeline, on the described coal powder collection Cang Ding open holes is set, on open holes, install discharge tube, discharge tube is connected to the cloth bag collection machine inlet, has removed original sack cleaner set on coal powder collection Cang Ding.
Adopt the cleaning apparatus in the coal fine spraying system of the present utility model, remove the coal powder collection Cang Ding in the system and gone up set sack cleaner, and utilize the cloth bag collection machine above the coal powder collection storehouse to substitute it, finish this part function that collecting bin pushes up set sack cleaner.Because the function of cloth bag collection machine and sack cleaner is identical, all be to carry out the gas powder to separate, discharge clean waste gas, collect powder; Again since the ventilation of sack cleaner generally have only cloth bag collection machine 1/12～1/15 between, and it is more much lower than the former to contain the powder concentration latter, therefore can when not increasing or slightly increasing the receipts powder area of cloth bag collection machine, remove sack cleaner fully, thereby simplified process equipment, save space, reduce cost of investment.
Description of drawings
Fig. 1 is the synoptic diagram that the cleaning apparatus of existing coal fine spraying system comprises sack cleaner.
Fig. 2 is the cleaning apparatus in a kind of coal fine spraying system of the present utility model such as the synoptic diagram of cloth bag collection machine and depositing dust case.
Embodiment
Referring to Fig. 2, cleaning apparatus in a kind of coal fine spraying system of the present utility model comprises coal pulverizer 1, cloth bag collection machine 2, machine supplying powder 3, coal powder collection storehouse 4, winding-up jar 5, vacuum fan 7, chimney 8, winding-up house steward 9 and blast furnace 10, and they are connected by pipeline.Cleaning apparatus also is provided with some auxiliary facilities that are associated.
On coal powder collection Cang4Ding open holes is set, installs discharge tube on open holes, discharge tube is connected to cloth bag collection machine 2 inlets, has removed original sack cleaner set on coal powder collection Cang4Ding 6 (showing among Fig. 1).When coal powder collection storehouse 4 discharging tolerance seldom or the discharging fine powder even, when not needing pre-treatment macrobead coal dust, adopt pipeline directly to connect, promptly pick out the inlet that pipeline is connected to cloth bag collection machine 2 always from coal powder collection Cang4Ding.
In order to remove some macrobead coal dusts, reduce the leaching amount of cloth bag collection machine 2, also installation depositing dust case 11 on the discharge tube that can between coal powder collection Cang4Ding and cloth bag collection machine 2 inlets, be connected.Just connect a depositing dust case 11 in the middle of the discharge tube 2 from coal powder collection storehouse 4 to cloth bag collection machine.This depositing dust case 11 is coarse grain filters.This depositing dust case 11 or the pipeline that can reduce the dilatation of exhaust jet stream dustiness, when air communication was crossed the pipeline of dilatation, air-flow slowed down suddenly and makes to collect after the sedimentation of macrobead coal dust and get back in the coal powder collection storehouse 4, to reduce the dustiness of exhaust jet stream.This depositing dust case 11 also can be a case structure that can reduce the dilatation of exhaust jet stream dustiness.Depositing dust case 11 is simple in structure, and is easy to connect.
The workflow of the cleaning apparatus in the coal fine spraying system of the present utility model is as follows:
Coal with the needs winding-up, after making coal dust, coal pulverizer 1 delivers to cloth bag collection machine 2 by wind-force, by cloth bag collection machine 2 gas, powder are separated, machine supplying powder 3 behind the coal powder collection below cloth bag collection machine 2 is fallen in the coal powder collection storehouse 4, then coal dust is discharged to the winding-up jar 5 from coal powder collection storehouse 4, winding-up jar 5 usefulness strength modes are advanced blast furnace 10 through winding-up house steward 9 winding-ups.Simultaneously, the gas that coal powder collection storehouse 4 is needed separate discharge, by the pipeline that between coal powder collection Cang4Ding and cloth bag collection machine 2 inlets, is connected, make cloth bag collection machine 2 directly carry out the gas powder and separate, vacuum fan 7 and chimney 8 waste gas after with cloth bag collection machine 2 purifications enters atmosphere.
When be pollinated in coal powder collection storehouse 4, when jetting jar 5 release exhausts, when winding-up house steward 9 stops up blowbacks, all there is the gas powder to enter coal powder collection storehouse 4, at this moment, these gas powder enter the inlet of cloth bag collection machine 2 after depositing dust case 11 is with the macrobead sedimentation, separate cloth bag collection machine 2 with the gas powder of coming from coal pulverizer 1.
After cleaning apparatus of the present utility model is removed sack cleaner,,, Primordial Qi powder stream has been played diluting effect because the tolerance that increases is the very low gas of powder containing quantity though the filter tolerance of cloth bag collection machine increases to some extent, little to the receipts powder effectiveness affects of cloth bag collection machine.When if filter tolerance and powder containing quantity are big, can be according to calculating the filtration area that suitably increases cloth bag collection machine, its increasing amount generally increases below 5% on the original area basis.
Below a preferred embodiment adopt the obtained effect of cleaning apparatus of the present utility model to further specify.
At 3000m
3In the level bf coal injection system, if adopt existing processing unit flow process shown in Figure 1, design system Coal powder spray 60t/h, the processing total blast volume of cloth bag collection machine is 135000Nm
3/ h, it is 450g/Nm that import contains powder concentration
3, the filtration total area of the cloth bag collection machine of selecting for use is 3500m
2Blow when stifled the about 10000Nm of average emission dusty gas the material feeding of coal powder collection storehouse, winding-up jar pressure release exhaust and winding-up house steward
3/ h, the dust content that delivers from godown are 200g/Nm
3, need to be provided with the sack cleaner that is positioned on the coal powder collection Cang Ding, filter the total area and be about 220m
2
And after adopting processing unit flow process shown in Figure 2, behind the dilatation depositing dust case by duct type, the dust content that enters cloth bag collection machine is 150g/Nm
3At this moment, the processing total blast volume of cloth bag collection machine is 145000Nm
3/ h, increasing amount is 1/13.5, it is 456g/Nm that import contains powder concentration
3, this compares and can ignore with existing processing unit flow process, so after removing the sack cleaner that is positioned on the coal powder collection Cang Ding, cloth bag collection machine only need increase very a little bit smaller filtration area, does not also have much influences even do not increase the filtration area of cloth bag collection machine.After adopting of the present utility model new cleaning apparatus shown in Figure 2, not only reduced sack cleaner and the facilities such as blower fan, chimney and associated conduit instrument supporting, and reduced building height, reduced routine maintenance and working cost with it.
Certainly, those skilled in the art in the present technique field will be appreciated that, the foregoing description only is to be used for illustrating the utility model, and be not with opposing qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in the scope of the utility model claim conversion, the modification of the foregoing description.
Claims (5)
1. the cleaning apparatus in the coal fine spraying system, it comprises coal pulverizer, cloth bag collection machine, machine supplying powder, coal powder collection storehouse, winding-up jar, vacuum fan, chimney, winding-up house steward and blast furnace, they are connected by pipeline, it is characterized in that, on the described coal powder collection Cang Ding open holes is set, install discharge tube on open holes, discharge tube is connected to the cloth bag collection machine inlet, has removed original sack cleaner set on coal powder collection Cang Ding.
2. the cleaning apparatus in the coal fine spraying system according to claim 1 is characterized in that, on the discharge tube that is connected between described coal powder collection Cang Ding and the cloth bag collection machine inlet depositing dust case is housed.
3. the cleaning apparatus in the coal fine spraying system according to claim 2 is characterized in that, described depositing dust case is a coarse grain filter.
4. the cleaning apparatus in the coal fine spraying system according to claim 2 is characterized in that, described depositing dust case is a pipeline that can reduce the dilatation of exhaust jet stream dustiness.
5. the cleaning apparatus in the coal fine spraying system according to claim 2 is characterized in that, described depositing dust case is a case structure that can reduce the dilatation of exhaust jet stream dustiness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201551711U CN201284348Y (en) | 2008-11-11 | 2008-11-11 | Dust removing apparatus of coal fine making and spraying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201551711U CN201284348Y (en) | 2008-11-11 | 2008-11-11 | Dust removing apparatus of coal fine making and spraying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201284348Y true CN201284348Y (en) | 2009-08-05 |
Family
ID=40949337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201551711U Expired - Fee Related CN201284348Y (en) | 2008-11-11 | 2008-11-11 | Dust removing apparatus of coal fine making and spraying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201284348Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088172A (en) * | 2011-10-31 | 2013-05-08 | 李观升 | Non-pneumatic mechanical convey metering coal feeding device in front of tuyeres |
| CN105509472A (en) * | 2016-01-21 | 2016-04-20 | 大峘集团有限公司 | Sintering ignition device with pulverized coal as fuel |
| CN108057518A (en) * | 2017-11-28 | 2018-05-22 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of magnetic material horizontal wind magnetic-synchro connection screening device and method |
-
2008
- 2008-11-11 CN CNU2008201551711U patent/CN201284348Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088172A (en) * | 2011-10-31 | 2013-05-08 | 李观升 | Non-pneumatic mechanical convey metering coal feeding device in front of tuyeres |
| CN105509472A (en) * | 2016-01-21 | 2016-04-20 | 大峘集团有限公司 | Sintering ignition device with pulverized coal as fuel |
| CN108057518A (en) * | 2017-11-28 | 2018-05-22 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of magnetic material horizontal wind magnetic-synchro connection screening device and method |
| CN108057518B (en) * | 2017-11-28 | 2024-02-02 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Horizontal wind-magnetic synchronous joint selection device and method for magnetic materials |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BAOSTEEL ENGINEERING + TECHNOLOGY GROUP CO., LTD Free format text: FORMER OWNER: BAOGANG ENGINEERING TECHN CO., LTD., SHANGHAI Effective date: 20100720 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100720 Address after: 201900 Shanghai city Baoshan District Tieli Road No. 2510 Patentee after: Baosteel Engeneering &Technology Group Co., Ltd. Address before: 201900 Shanghai city Baoshan District Tieli Road No. 2510 Patentee before: Shanghai Baogang Engineering Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090805 Termination date: 20151111 |
|
| EXPY | Termination of patent right or utility model |