CN203816751U - Closing device for pebble coal discharge of coal mill - Google Patents
Closing device for pebble coal discharge of coal mill Download PDFInfo
- Publication number
- CN203816751U CN203816751U CN201420247041.6U CN201420247041U CN203816751U CN 203816751 U CN203816751 U CN 203816751U CN 201420247041 U CN201420247041 U CN 201420247041U CN 203816751 U CN203816751 U CN 203816751U
- Authority
- CN
- China
- Prior art keywords
- cover plate
- outlet
- hydraulic pressure
- lifting device
- coal
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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 - Lifetime
Links
- 239000003245 coal Substances 0.000 title claims abstract description 73
- 229920001971 elastomer Polymers 0.000 claims abstract description 11
- 239000000806 elastomer Substances 0.000 claims abstract description 11
- 238000007599 discharging Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 15
- 230000008676 import Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 14
- 230000029142 excretion Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 4
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 3
- 230000006837 decompression Effects 0.000 abstract 3
- 239000002817 coal dust Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
Landscapes
- Crushing And Pulverization Processes (AREA)
- Crushing And Grinding (AREA)
Abstract
The utility model relates to a closing device for pebble coal discharge of a coal mill. A bin is arranged at a pebble coal discharge port of the coal mill, a feed valve is arranged at an inlet of the bin, a discharge valve is arranged at an outlet in the bottom of the bin, a vertically moving cover plate is arranged on the outer diameter of the outlet, hydraulic lifters are arranged on the cover plate, an inlet of a decompression pipe extends to a position below a cover plate hole, an outlet of the decompression pipe is communicated with a dust suction pipe, an elastomer is arranged on the lower surface of the cover plate, and the cover plate can move vertically along the outer diameter of the discharge port and the outer diameter of the decompression pipe under the actions of a hydraulic control valve and the hydraulic lifters. When the pebble coal is discharged, a conveying vehicle is arranged at the outlet of the bin, the cover plate is dropped and sealed to the top of the conveying vehicle by the hydraulic control valve and the hydraulic lifters, the pebble coal is discharged into the bin after the feed valve is opened, the feed valve is closed, the discharge valve is opened, the pebble coal falls into the conveying vehicle, the discharge valve is closed when the conveying vehicle is filled with the pebble coal, the cover plate is lifted by the hydraulic control valve and the hydraulic lifters, and the conveying vehicle can carry the pebble coal away.
Description
Technical field
The utility model relates to a kind of power plant Mill Auxiliary Equipment, is mainly applicable to the coal pulverizer excretion pebble coal locking device of coal pulverizer excretion pebble coal.
Background technology
Thermal power plant needs the pebble coal that is mixed in wherein to exclude in the process that grinds coal dust with coal pulverizer, and existing way is, at coal pulverizer, pebble coal discharging opening is set, pebble coal from discharging opening out by manually transporting.Because the coal dust of wearing into is carried by higher blast pipeline, coal pulverizer pebble coal discharging opening bad sealing in addition, therefore, has a large amount of dust and leaks and be diffused in air removing in the process of pebble coal, cause environmental pollution.
Summary of the invention
The purpose of this utility model is a kind of coal pulverizer excretion of design pebble coal locking device, at coal pulverizer pebble coal discharging opening, feed bin is set, the import of feed bin arranges material inlet valve, bin bottom outlet arranges discharge valve, outlet external diameter arranges cover plate moving up and down, hydraulic pressure lifting device is set on cover plate, the import of relief tube reaches below cover board hole, the outlet of relief tube is communicated with sweep-up pipe, cover plate lower surface arranges elastomer, under the effect of hydraulic control valve, hydraulic pressure lifting device, cover plate can move up and down along the external diameter of discharging opening external diameter and relief tube.When excretion pebble coal, dumper is arranged on to bin outlet, by hydraulic control valve, hydraulic pressure lifting device dropping on dumper top seal under cover plate, after opening material inlet valve, pebble coal is excreted in feed bin, close material inlet valve and open discharge valve, pebble coal falls into dumper, and dumper cuts out discharge valve after filling pebble coal, promote cover plate by hydraulic control valve, hydraulic pressure lifting device, dumper can be transported pebble coal.
The utility model solves its technical problem technical scheme used: it is by import, feed bin, support, hydraulic pressure lifting device one, sweep-up pipe, fixed mount, relief tube, sealing ring one, cover plate, elastomer, dumper, outlet, sealing ring two, limited block one, discharge valve, hydraulic pressure lifting device two, hydraulic control valve, hydraulic oil pipe, limited block two, material inlet valve, aperture, macropore composition arranges feed bin below coal pulverizer pebble coal discharging opening, and the import of feed bin is communicated with coal pulverizer pebble coal discharging opening, and import arranges material inlet valve, limited block one, bin bottom arranges outlet, and outlet upper end arranges discharge valve, limited block two, outlet cylindrical arranges cover plate, and cover plate arranges diameter and is greater than the macropore that exports cylindrical, diameter is greater than the aperture of relief tube cylindrical, the axial line and the axis parallel of relief tube and vertical with cover plate plane of outlet, cover plate can move up and down at outlet cylindrical and relief tube cylindrical, between macropore and outlet cylindrical, add sealing ring, between aperture and relief tube cylindrical, add sealing ring, hydraulic pressure lifting device one is set on cover plate, hydraulic pressure lifting device two, hydraulic pressure lifting device one, hydraulic pressure lifting device two is fixed on fixed mount, and relief tube is fixed on fixed mount, and the outlet of relief tube is communicated with sweep-up pipe, and the import of relief tube is through small holes through cover plate, and cover plate lower surface arranges elastomer, elastomer setting and aperture, the hole that macropore is identical, at hydraulic control valve, hydraulic pressure lifting device one, under the effect of hydraulic pressure lifting device two, cover plate can be along discharging opening cylindrical, relief tube cylindrical moves up and down, and when excretion pebble coal, dumper is parked under discharging opening, passes through control valve, hydraulic pressure lifting device one, hydraulic pressure lifting device two is the charging aperture that drops on dumper under cover plate, open material inlet valve pebble coal is excreted in feed bin from coal pulverizer pebble coal discharging opening, close material inlet valve and open discharge valve, pebble coal falls in dumper, dumper cuts out discharge valve after filling pebble coal, passes through control valve, hydraulic pressure lifting device one, hydraulic pressure lifting device two promotes cover plate and departs from dumper charging aperture, and now removable dumper is transported pebble coal.
The beneficial effects of the utility model are: pebble coal is stored into after a certain amount of and takes sealing excretion, reduces the pollution of dust to environment, alleviates workman's labour intensity.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
Accompanying drawing 1 is structure chart of the present utility model.
Accompanying drawing 2 is of the present utility model.
Accompanying drawing 3 is the front view of gate 4
Accompanying drawing 4 is the top view of accompanying drawing 3.
Accompanying drawing 5 is the front view of cover plate 11
Accompanying drawing 6 is the B-B cutaway view of accompanying drawing 5.
In accompanying drawing, 1. coal pulverizer pebble coal discharging opening, 2. import, 3. feed bin, 4. pebble coal, 5. support, 6. hydraulic pressure lifting device one, 7. sweep-up pipe, 8. fixed mount, 9. relief tube, 10. sealing ring one, 11. cover plates, 12. elastomers, 13. dumpers, 14. outlets, 15. sealing rings two, 16. limited blocks one, 17. discharge valves, 18. hydraulic pressure lifting devices two, 19. hydraulic control valves, 20. hydraulic oil pipes, 21. limited blocks two, 22. material inlet valves, 23. apertures, 24. macropores.
Detailed description of the invention
Accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5, in accompanying drawing 6, in the below of coal pulverizer pebble coal discharging opening (1), feed bin (3) is set, the import (2) of feed bin (3) is communicated with coal pulverizer pebble coal discharging opening (1), import (2) arranges material inlet valve (22), limited block one (21), feed bin (3) bottom arranges outlet (14), outlet (14) upper end arranges discharge valve (17), limited block two (16), outlet (14, ) cylindrical arranges cover plate (11), cover plate (11) arranges the macropore (24) that diameter is greater than outlet (14) external diameter, diameter is greater than the aperture (23) of relief tube (9) external diameter, the axial line and the axis parallel of relief tube (9) and vertical with cover plate (11) plane of outlet (14), cover plate (11) can move up and down at outlet (14) cylindrical and relief tube (9) cylindrical, between macropore (24) and outlet (14) cylindrical, add sealing ring two (15), between aperture (23) and relief tube (9) cylindrical, add sealing ring one (10), hydraulic pressure lifting device one (6) is set on cover plate (11), hydraulic pressure lifting device two (18), hydraulic pressure lifting device one (6), hydraulic pressure lifting device two (18) is fixed on fixed mount (8), relief tube (9) is fixed on fixed mount (8), the outlet of relief tube (9) is communicated with sweep-up pipe (7), the import of relief tube (9) is passed cover plate (11) through small holes (23), cover plate (11) lower surface arranges elastomer (12), elastomer (12) arranges and aperture (23), the identical hole of macropore (24), in hydraulic control valve (19), hydraulic pressure lifting device one (6), under the effect of hydraulic pressure lifting device two (18), cover plate (11) can be along outlet (14) cylindrical, relief tube (9) cylindrical moves up and down, when excretion pebble coal (4), dumper (13) is parked under outlet (14), by control valve (19), hydraulic pressure lifting device one (6), hydraulic pressure lifting device two (18) is the charging aperture that drops on dumper (13) under cover plate (11), opening material inlet valve (22) is excreted to pebble coal (4) in feed bin (3) from coal pulverizer pebble coal discharging opening (1), close material inlet valve (22) and open discharge valve (17), pebble coal (4) falls in dumper (13), dumper (13) cuts out discharge valve (17) after filling pebble coal (4), by control valve (19), hydraulic pressure lifting device one (6), hydraulic pressure lifting device two (18) promotes the charging aperture that cover plate (11) departs from dumper (13), now mobile dumper (13) is transported pebble coal (4).
Claims (1)
1. a coal pulverizer excretion pebble coal locking device is by import (2), feed bin (3), support (5), hydraulic pressure lifting device one (6), sweep-up pipe (7), fixed mount (8), relief tube (9), sealing ring one (10), cover plate (11), elastomer (12), dumper (13), outlet (14), sealing ring two (15), limited block one (16), discharge valve (17), hydraulic pressure lifting device two (18), hydraulic control valve (19), hydraulic oil pipe (20), limited block two (21), material inlet valve (22), aperture (23), macropore (24) composition, it is characterized in that: in the below of coal pulverizer pebble coal discharging opening (1), feed bin (3) is set, the import (2) of feed bin (3) is communicated with coal pulverizer pebble coal discharging opening (1), and import (2) arranges material inlet valve (22), limited block one (21), feed bin (3) bottom arranges outlet (14), and outlet (14) upper end arranges discharge valve (17), limited block two (16), outlet (14) cylindrical arranges cover plate (11), and cover plate (11) arranges the macropore (24) that diameter is greater than outlet (14) external diameter, diameter is greater than the aperture (23) of relief tube (9) external diameter, the axial line and the axis parallel of relief tube (9) and vertical with cover plate (11) plane of outlet (14), cover plate (11) can move up and down at outlet (14) cylindrical and relief tube (9) cylindrical, between macropore (24) and outlet (14) cylindrical, add sealing ring two (15), between aperture (23) and relief tube (9) cylindrical, add sealing ring one (10), hydraulic pressure lifting device one (6) is set on cover plate (11), hydraulic pressure lifting device two (18), hydraulic pressure lifting device one (6), hydraulic pressure lifting device two (18) is fixed on fixed mount (8), relief tube (9) is fixed on fixed mount (8), the outlet of relief tube (9) is communicated with sweep-up pipe (7), the import of relief tube (9) is passed cover plate (11) through small holes (23), cover plate (11) lower surface arranges elastomer (12), and elastomer (12) arranges and aperture (23), the identical hole of macropore (24), in hydraulic control valve (19), hydraulic pressure lifting device one (6), under the effect of hydraulic pressure lifting device two (18), cover plate (11) can be along outlet (14) cylindrical, relief tube (9) cylindrical moves up and down, and when excretion pebble coal (4), dumper (13) is parked under outlet (14), by control valve (19), hydraulic pressure lifting device one (6), hydraulic pressure lifting device two (18) is the charging aperture that drops on dumper (13) under cover plate (11), opening material inlet valve (22) is excreted to pebble coal (4) in feed bin (3) from coal pulverizer pebble coal discharging opening (1), close material inlet valve (22) and open discharge valve (17), pebble coal (4) falls in dumper (13), dumper (13) cuts out discharge valve (17) after filling pebble coal (4), by control valve (19), hydraulic pressure lifting device one (6), hydraulic pressure lifting device two (18) promotes the charging aperture that cover plate (11) departs from dumper (13), and now mobile dumper (13) is transported pebble coal (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420247041.6U CN203816751U (en) | 2014-05-15 | 2014-05-15 | Closing device for pebble coal discharge of coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420247041.6U CN203816751U (en) | 2014-05-15 | 2014-05-15 | Closing device for pebble coal discharge of coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203816751U true CN203816751U (en) | 2014-09-10 |
Family
ID=51472295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420247041.6U Expired - Lifetime CN203816751U (en) | 2014-05-15 | 2014-05-15 | Closing device for pebble coal discharge of coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203816751U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109174277A (en) * | 2017-04-05 | 2019-01-11 | 孙立民 | A kind of hydraulic power adjustable in depth pulverizer |
-
2014
- 2014-05-15 CN CN201420247041.6U patent/CN203816751U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109174277A (en) * | 2017-04-05 | 2019-01-11 | 孙立民 | A kind of hydraulic power adjustable in depth pulverizer |
| CN109174277B (en) * | 2017-04-05 | 2020-06-05 | 孙立民 | Hydraulic power degree of depth adjustable crusher |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |
|
| CX01 | Expiry of patent term |