CN110436150A - Run coal bin coal spout blockage-clearing device and its air-tight structure - Google Patents
Run coal bin coal spout blockage-clearing device and its air-tight structure Download PDFInfo
- Publication number
- CN110436150A CN110436150A CN201910660384.2A CN201910660384A CN110436150A CN 110436150 A CN110436150 A CN 110436150A CN 201910660384 A CN201910660384 A CN 201910660384A CN 110436150 A CN110436150 A CN 110436150A
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- Prior art keywords
- scraper
- seal chamber
- sealing
- air
- coal
- 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.)
- Granted
Links
- 239000003245 coal Substances 0.000 title claims abstract description 58
- 238000007789 sealing Methods 0.000 claims abstract description 60
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 claims abstract description 13
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 10
- 238000012856 packing Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 abstract description 13
- 239000000203 mixture Substances 0.000 abstract description 6
- 238000010304 firing Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- ZBMRKNMTMPPMMK-UHFFFAOYSA-N 2-amino-4-[hydroxy(methyl)phosphoryl]butanoic acid;azane Chemical compound [NH4+].CP(O)(=O)CCC(N)C([O-])=O ZBMRKNMTMPPMMK-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
- B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
- B65D88/68—Large containers characterised by means facilitating filling or emptying preventing bridge formation using rotating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/0093—Devices for cleaning the internal surfaces of the container and forming part of the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/16—Devices for feeding articles or materials to conveyors for feeding materials in bulk
- B65G47/18—Arrangements or applications of hoppers or chutes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
- Sealing Devices (AREA)
Abstract
The present invention discloses a kind of run coal bin coal spout blockage-clearing device and its air-tight structure, blockage-clearing device includes sequentially connected gear reducer, gear, rotationally supports gear and scraper, the scraper is set in pipeline, rotationally support gear be bolted with inner barn wall, scraper, scraper pedestal it is integral；The air-tight structure includes upper seal chamber, lower seal chamber, upper sealing air pipe, lower sealing air pipe, tool apron sealing clamp, adjustment cushion block, scraper pedestal, and the tool apron sealing clamp is set to scraper and inner barn wall interface position；For the adjustment cushion block between scraper pedestal and inner barn wall, the upper seal chamber and lower seal chamber are located at adjustment cushion block two sides up and down, are connected to respectively with upper sealing air pipe and lower sealing air pipe, upper seal chamber is connected to lower seal chamber cavity.Present invention ensures that mud coal mixes the stability for firing powder system operation, air-tight structure is in addition used, sealing effect is improved, has been inherently eliminated the exposed problem of wind powder mixture.
Description
Technical field
The present invention relates to thermal power generating technology fields, more specifically to a kind of positive pressure powder-making system run coal bin coal breakage
Pipeline blockage-clearing device and its air-tight structure.
Background technique
Boiler uses design coal and is generally bituminous coal, using the cold First air pressurized direct pulverizing coal system of medium-speed pulverizer, raw coal
Storehouse is the bottleneck of boiler oil and the key equipment of boiler coal feeding system, to prevent the blocking of run coal bin hopper from influencing boiler just
Often burning is arranged rotary automatic block clearing machine using in feeder import to run coal bin interlude at present, prevents hopper from blocking.But
It is to consider economic implementations, burning mud coal need to be mixed, mixing burning mud coal will appear run coal bin hopper discharge port to feeder import chute blockage feelings
Condition influences long-term mud coal and mixes the stability for firing powder system operation, need to be transformed to feeder inlet device, increases coal spout
Scraper blockage-clearing device.
Simultaneously as use environment is that positive pressure direct blows powder system, feeder and run coal bin part have certain positive pressure, when
Bulkhead is seamed to have wind powder mixture blowout, so the use of scraper blockage-clearing device being then the sealing problem for needing to consider structure.
, there are different drawbacks, first packing_seal in existing a variety of sealing means, the premise of packing_seal is to press packing
Tightly, reduce gap, to achieve the effect that sealing, this mode and pipeline be association of activity and inertia face requirement on the contrary, clamp force is big
Then torque is big, and electric current is high, and packing subsequent need to be compressed, sealing effect due to will appear gap increase after running a period of time
Fruit is poor, and the method for operation is undesirable；Secondly the face of being association of activity and inertia may be implemented in the mode similar for labyrinth seal, the mode of labyrinth seal
A little sealing effect, but use environment this for scraper blockage-clearing device are realized while rotation, it is desirable to which sealing structure adds
Work precision and installation accuracy are quite high, and installation and processing cost arrive, while the positive pressure system that labyrinth seal mixes wind powder is deposited
There are a fatal drawbacks then to have gap, wind powder mixture can enter from gap location since there are relative motions for labyrinth seal
Inside labyrinth seal, coal dust deposition is hardened, and labyrinth seal bite occurs in longtime running, and electric current increases, deceleration machine vibration, serious meeting
There is labyrinth seal deformation；Other mechanical sealing means have the drawbacks of above two sealing means.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of positive pressure powder-making system run coal bin coal spout block clearings
Device and its air-tight structure, its object is to: increase coal breakage pipe-line scraper blockage-clearing device, it is ensured that boiler combustion is transported steadily in the long term
Row, and scraper blockage-clearing device can fundamentally eliminate the problem of leakage of wind powder mixture by the way of sealing gland.
To achieve the above object, the present invention adopts the following technical scheme that.
Run coal bin coal spout blockage-clearing device and its air-tight structure, the blockage-clearing device be installed on rotation cleaner roll-over and
On coal breakage pipeline between feeder, it is characterised in that: the blockage-clearing device includes sequentially connected gear reducer, gear, rotation
Supporting gear and scraper, the scraper are set in pipeline, apart from inner wall of the pipe a distance, it is described rotationally support gear with it is interior
Bulkhead, scraper, scraper pedestal be bolted it is integral, pass through speed reducer drive scraper rotary work；The airtight sealed knot
Structure includes upper seal chamber, lower seal chamber, upper sealing air pipe, lower sealing air pipe, tool apron sealing clamp, adjusts cushion block, scraper pedestal,
The tool apron sealing clamp is set to scraper and inner barn wall interface position；The adjustment cushion block be located at scraper pedestal and inner barn wall it
Between, the upper seal chamber and lower seal chamber are located at adjustment cushion block two sides up and down, respectively with upper sealing air pipe and lower sealing
Air hose connection, the upper seal chamber are connected to lower seal chamber cavity.
Preferably, the scraper is apart from inner wall of the pipe 5-8mm.
Preferably, adjustment money advanced for somebody to be paid back later be uniformly distributed at inner barn wall.
Further, the upper sealing air pipe and lower sealing air pipe and upper seal chamber and lower seal chamber are by the way of welding
Connection.
Further, the upper sealed packing is located at scraper pedestal and top coal spout is association of activity and inertia face, plays sealing and makees
With；Lower sealed packing is located on the outside of lower labyrinth seal, is fixed using lower platen, plays sealing function.
Compared with the prior art, the present invention has the advantages that
The present invention handles coal spout bulkhead product coal in time, effectively ensures mud coal by increasing coal spout blockage-clearing device
The stability for firing powder system operation is mixed, security risk is reduced；In addition, the present invention adopts the installation sealing of coal spout blockage-clearing device
With hermetic seal, sealing effect is improved, the exposed problem of wind powder mixture has been inherently eliminated.
Detailed description of the invention
Fig. 1 is schematic cross-sectional view of the present invention.
Fig. 2 is positional structure schematic diagram of the present invention.
Fig. 3 is hermetic seal schematic illustration of the present invention.
Fig. 4 is present invention adjustment cushion block setting angle schematic diagram.
In figure: 1, speed reducer, 2, gear, 3, lower sealed packing, 4, lower platen, 5, lower sealing air pipe, 6, housing pin, 7,
Adjust cushion block, 8, upper sealed packing, 9, rotationally support gear, 10, bearing seal item, 11, upper sealing air pipe, 12, inner barn wall,
13, scraper, 14, tool apron sealing clamp, 15, housing, 16, scraper pedestal, 17, electronic insertion plate door, 18, coal spout blockage-clearing device,
19, feeder, 20, rotation cleaner roll-over.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description；Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments, is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the instruction such as term " on ", "lower", "inner", "outside", " top/bottom end "
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention and simplification retouch
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation " " is set
Be equipped with ", " be arranged/connect ", " connection " etc., shall be understood in a broad sense, such as " connection ", may be a fixed connection, be also possible to removable
Connection is unloaded, or is integrally connected, can be mechanical connection, is also possible to be electrically connected, can be directly connected, it can also be in
Between medium be indirectly connected, can be the connection inside two elements, for the ordinary skill in the art, can be specific
Situation understands the concrete meaning of above-mentioned term in the present invention.
Embodiment 1:
Referring to Fig. 2, it is existing set that coal spout blockage-clearing device 18, which is installed on rotation cleaner roll-over 20(rotation cleaner roll-over,
It is standby) and feeder 19 between coal breakage pipeline on, be located at electronic 17 top of insertion plate door of former buster.
Referring to Fig. 1, the coal spout blockage-clearing device includes sequentially connected speed reducer 1, gear 2, rotationally supports gear 9
With scraper 13, the scraper 13 is set in pipeline, described to rotationally support gear 9 and inner barn wall apart from inner wall of the pipe 5-8mm
12, scraper 13, scraper pedestal 16 are connected integral by housing pin 6, drive scraper rotary work by speed reducer 1.Coal breakage
Housing 15 is installed on the outside of pipe blockage-clearing device.
Referring to Fig. 1, the air-tight structure includes upper seal chamber, lower seal chamber, upper sealing air pipe 11, lower sealing air pipe
5, tool apron sealing clamp 14, adjustment cushion block 7, upper sealed packing 8, lower sealed packing 3.
Tool apron sealing clamp 14 is set to scraper 13 and 12 interface position of inner barn wall, because of scraper insertion inner barn wall and rotation branch
Connection is held, scraper and inner barn wall have gap, there is the hidden danger for powder leakage of leaking out, so installing tool apron sealing clamp additional, play sealing and make
With.
Upper sealed packing 8 is located at scraper pedestal and top coal spout is association of activity and inertia face, plays sealing function；Rotationally support tooth
It takes turns lower mouth and designs a labyrinth seal, lower sealed packing 3 is located on the outside of lower labyrinth seal, and it is fixed using lower platen 4, it plays sealing and makees
With.
Bearing seal item 10, which is installed on, to be rotationally supported between 9 Internal and external cycle of gear, rotationally supports gear outer ring and inner ring uses
Sealing strip is sealed, and has been prevented sundries from entering and has been rotationally supported inside, causes to rotationally support internal ball, raceway damage；Also it rises
Rotationally support lubricant grease sealing function.
Adjust cushion block 7 between scraper pedestal 16 and inner barn wall 12, be uniformly distributed at inner barn wall；The upper seal chamber
Adjustment about 7 two sides of cushion block are located at lower seal chamber, are connected to respectively with upper sealing air pipe 11 and lower sealing air pipe 5, institute
Seal chamber to be stated to be connected to lower seal chamber cavity, the bleed pressure being passed through in seal chamber is greater than feeder and seals bleed pressure, from
And the hidden danger that there is powder leakage of leaking out in pipeline is prevented, play sealing function.
Concrete operating principle:
Cleaner working principle: motor is rotated by external speed reducer band moving gear, is rotationally supported gear 9 and is adjusted cushion block 7, interior
Bulkhead 12, scraper 13 are connected integral by bolt, housing pin 6, so that scraper 13 rotates, will be attached on feed bin inner wall
Fire coal scrapes off feed bin, generates fluffing action in rotary course, reduces the bonding force between material, and fire coal is easier to fall, reach
To coal spout block clearing effect.
Be association of activity and inertia face sealing principle: scraper blockage-clearing device upper-lower seal air piping gas source comes from seal fan outlet
Road, feeder sealing air gas source come from primary air fan outlet conduit, and sealing air fan outlet pressure is greater than primary air fan outlet pressure
Power, and sealing air pipeline and upper-lower seal chamber weld Shi Junyou slight angle, and adjusting cushion block is to be evenly distributed at inner barn wall,
Upper-lower seal chamber is connected state, and after gas source is connected, upper-lower seal chamber forms an integral sealing chamber, and sealing air is respectively from upper and lower
Sealing air pipe enters, and goes out from upper-lower seal cavity gap, until feeder run coal bin, prevents run coal bin wind powder mixture from entering, if any
Slight coal dust, which enters, to be excluded by lower seal chamber gap location, to have the function that protect bearing or more to be association of activity and inertia face.
By the transformation to scraper blockage-clearing device, pulverized coal preparation system is stable, and blockage-clearing device does not occur bite, speed reducer vibration
Situations such as dynamic, current of electric are stablized in 2.02A or so.
The foregoing is intended to be a preferred embodiment of the present invention；But scope of protection of the present invention is not limited thereto.
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
It improves design and is subject to equivalent substitution or change, should be covered by the scope of protection of the present invention.
Claims (5)
1. run coal bin coal spout blockage-clearing device and its air-tight structure, the blockage-clearing device be installed on rotation cleaner roll-over and to
On coal breakage pipeline between coal machine, it is characterised in that: the blockage-clearing device includes sequentially connected gear reducer, gear, rotation branch
Gear and scraper are held, the scraper is set in pipeline, described to rotationally support gear and interior storehouse apart from inner wall of the pipe a distance
Wall, scraper, scraper pedestal be bolted it is integral, pass through speed reducer drive scraper rotary work；The air-tight structure
Including upper seal chamber, lower seal chamber, upper sealing air pipe, lower sealing air pipe, tool apron sealing clamp, adjustment cushion block, scraper pedestal, institute
It states tool apron sealing clamp and is set to scraper and inner barn wall interface position；The adjustment cushion block be located at scraper pedestal and inner barn wall it
Between, the upper seal chamber and lower seal chamber are located at adjustment cushion block two sides up and down, respectively with upper sealing air pipe and lower sealing
Air hose connection, the upper seal chamber are connected to lower seal chamber cavity.
2. run coal bin coal spout blockage-clearing device as described in claim 1 and its air-tight structure, it is characterised in that: the scraper
Apart from inner wall of the pipe 5-8mm.
3. run coal bin coal spout blockage-clearing device as described in claim 1 and its air-tight structure, it is characterised in that: the adjustment
Cushion block be uniformly distributed at inner barn wall.
4. run coal bin coal spout blockage-clearing device as described in claim 1 and its air-tight structure, it is characterised in that: described close
Envelope air hose and lower sealing air pipe are connect by the way of welding with upper seal chamber and lower seal chamber.
5. run coal bin coal spout blockage-clearing device as described in claim 1 and its air-tight structure, it is characterised in that: described close
Closing disk root is set to is association of activity and inertia face in scraper pedestal and top coal spout, plays sealing function；The lower sealed packing setting
On the outside of lower labyrinth seal, is fixed using lower platen, play sealing function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910660384.2A CN110436150B (en) | 2019-07-22 | 2019-07-22 | Raw coal bin coal dropping pipe blockage removing device and air sealing structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910660384.2A CN110436150B (en) | 2019-07-22 | 2019-07-22 | Raw coal bin coal dropping pipe blockage removing device and air sealing structure thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110436150A true CN110436150A (en) | 2019-11-12 |
| CN110436150B CN110436150B (en) | 2024-07-02 |
Family
ID=68430775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910660384.2A Active CN110436150B (en) | 2019-07-22 | 2019-07-22 | Raw coal bin coal dropping pipe blockage removing device and air sealing structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110436150B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111086777A (en) * | 2020-01-22 | 2020-05-01 | 河南明昱耐磨设备有限公司 | Blockage removing machine with scraper rotating surface parallel to polyhedral bin wall |
| CN113154042A (en) * | 2021-04-27 | 2021-07-23 | 苏州西热节能环保技术有限公司 | Coal feeding device with dustproof sealing structure |
| CN114955278A (en) * | 2022-05-19 | 2022-08-30 | 北京国能龙威发电技术有限公司 | Raw coal bunker outlet coal breakage system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1159977A (en) * | 1965-08-10 | 1969-07-30 | Steinmueller Gmbh L & C | Method of and Apparatus for Feeding the Mills of a Pulverised-Coal Furnace at a Constant Rate |
| CN203500455U (en) * | 2013-09-05 | 2014-03-26 | 辽宁龙电伟业新能科技有限公司 | Improved sealing structure for lower frame body of coal mill |
| CN206001006U (en) * | 2016-08-11 | 2017-03-08 | 大唐略阳发电有限责任公司 | A kind of medium-speed pulverizer tie-rod sealing structure |
| CN107339432A (en) * | 2017-08-22 | 2017-11-10 | 濮阳市鸿宇压力容器有限公司 | A kind of sealing device for being applied to rotation cleaner |
| CN208181836U (en) * | 2018-04-08 | 2018-12-04 | 西安安耐杰环保科技有限公司 | One kind prevents run coal bin from blocking new device |
| CN210504516U (en) * | 2019-07-22 | 2020-05-12 | 国家能源集团宿迁发电有限公司 | Clear stifled device of former coal bunker coal breakage pipe and airtight structure thereof |
-
2019
- 2019-07-22 CN CN201910660384.2A patent/CN110436150B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1159977A (en) * | 1965-08-10 | 1969-07-30 | Steinmueller Gmbh L & C | Method of and Apparatus for Feeding the Mills of a Pulverised-Coal Furnace at a Constant Rate |
| CN203500455U (en) * | 2013-09-05 | 2014-03-26 | 辽宁龙电伟业新能科技有限公司 | Improved sealing structure for lower frame body of coal mill |
| CN206001006U (en) * | 2016-08-11 | 2017-03-08 | 大唐略阳发电有限责任公司 | A kind of medium-speed pulverizer tie-rod sealing structure |
| CN107339432A (en) * | 2017-08-22 | 2017-11-10 | 濮阳市鸿宇压力容器有限公司 | A kind of sealing device for being applied to rotation cleaner |
| CN208181836U (en) * | 2018-04-08 | 2018-12-04 | 西安安耐杰环保科技有限公司 | One kind prevents run coal bin from blocking new device |
| CN210504516U (en) * | 2019-07-22 | 2020-05-12 | 国家能源集团宿迁发电有限公司 | Clear stifled device of former coal bunker coal breakage pipe and airtight structure thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111086777A (en) * | 2020-01-22 | 2020-05-01 | 河南明昱耐磨设备有限公司 | Blockage removing machine with scraper rotating surface parallel to polyhedral bin wall |
| CN113154042A (en) * | 2021-04-27 | 2021-07-23 | 苏州西热节能环保技术有限公司 | Coal feeding device with dustproof sealing structure |
| CN114955278A (en) * | 2022-05-19 | 2022-08-30 | 北京国能龙威发电技术有限公司 | Raw coal bunker outlet coal breakage system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110436150B (en) | 2024-07-02 |
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