CN206121898U - Totally enclosed formula coal pulverizer stone coal collection device - Google Patents
Totally enclosed formula coal pulverizer stone coal collection device Download PDFInfo
- Publication number
- CN206121898U CN206121898U CN201620865261.4U CN201620865261U CN206121898U CN 206121898 U CN206121898 U CN 206121898U CN 201620865261 U CN201620865261 U CN 201620865261U CN 206121898 U CN206121898 U CN 206121898U
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- frame
- coal
- top board
- sealing
- slag case
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- 239000003245 coal Substances 0.000 title claims abstract description 63
- 239000004575 stone Substances 0.000 title claims abstract description 18
- 239000002893 slag Substances 0.000 claims abstract description 42
- 239000000919 ceramic Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 42
- 239000007921 spray Substances 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 9
- 238000009529 body temperature measurement Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 4
- 230000007423 decrease Effects 0.000 abstract description 2
- 239000013049 sediment Substances 0.000 abstract 4
- 230000000630 rising effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 6
- 208000032843 Hemorrhage Diseases 0.000 description 5
- 230000003139 buffering effect Effects 0.000 description 5
- 208000014674 injury Diseases 0.000 description 5
- 230000008733 trauma Effects 0.000 description 5
- 239000003818 cinder Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
The utility model relates to a totally enclosed formula coal pulverizer stone coal collection device. The the device structure is: the slag notch of coal pulverizer is administrated this system and is connect the material mouth to link to each other, is equipped with the observation window between one picture peg and two rotary valves, and two wear -resisting ceramic rotary valves meet through pipeline and frame, are equipped with electronic hoisting device in the frame. Electronic hoisting device drives portable sediment case and reciprocates, and portable sediment case is sealed with the frame closing plate when rising, portable sediment case and closing plate separation during decline, and it can pull out to break away from the portable sediment case in back. Thereby realize the airtight emission of stone coal, this system is sealed tight, has stopped deslagging process gas leakage, the dust flies upward the phenomenon. The utility model discloses in inclosed box was fallen in the free skating under airtight environment that can let the stone coal not have the leakage, the outer hourglass was not understood to the stone buggy, and operational environment is peace and quiet, can not endanger the healthy of staff, has effectively improved workshop operational environment.
Description
Technical field
This utility model is related to a kind of the complete of all-sealed discharge of coal pulverizer pebble coal being applied in field of thermal power
Sealed coal pulverizer stone coal collecting device.
Background technology
Medium-speed pulverizer in power plant pulverized coal preparation system has some to be difficult to the granule for grinding in the running of coal-grinding, always
Shape material, these granular materials are referred to as pebble coal.During medium-speed pulverizer coal-grinding, pebble coal can be separated, and enter
Enter the pebbles coal slag box on the downside of medium-speed pulverizer, there is oblique tubular pebble coal outlet directed downwardly the lower end of pebbles coal slag box,
Pebble coal outlet is connected with residual cake valve, and residual cake valve exists for keeping closing during not discharge in medium-speed pulverizer, medium-speed pulverizer
To open off and in running, pebble coal from blow-off valve to cinder case in, the pebble coal of discharge is needed from medium-speed pulverizer
Outdoor coal cinder yard is sent in the Factory Building at scene.
It is in the Mill Systems of existing operation, most using the box dreg removing system on the spot of buffering, i.e. going out in coal pulverizer
Cinder notch order arranges upper residual cake valve, buffering dreg-storing box, lower dreg discharging valve, opened type slag discharging vehicle, and its deslagging mode is to discharge on the spot, people
Work is cleared；Slagged tap finally due to pebble coal, airborne dust is serious in transfer process, causes working condition very severe in Factory Building, sternly
Ghost image rings power plant environment health and safe and civilized production.Additionally, coal pulverizer longtime running and residual cake valve is frequently opened, causes general
Generally, a large amount of dust for leaking out, severe contamination surrounding are reduced for logical residual cake valve heavy wear, internal hemorrhage due to trauma and leakage phenomenon
The safety of equipment and service life.The defect for buffering box dreg removing system on the spot of the prior art specifically has：
1st, due to coal pulverizer longtime running, buffering dreg-storing box volume is smaller, needs continually to open in coal pulverizer operation
With closing residual cake valve, cause valve wear serious.It is easy to internal hemorrhage due to trauma and leakage.Dust is caused to be directly leaked to outside valve during leakage
；And during internal hemorrhage due to trauma, even if cannot also prevent stone to continue to discharge in coal when closing valve, if slag discharging vehicle splicing may result in not in time
Part pebble coal is directly discharged on ground, not only affects follow-up work but also because the dust that valve leaks are kicked up also can be serious
Pollution environment, this is the major reason of existing working site pollution.
2nd, discharged from the pebble coal for buffering the discharge of dreg-storing box slag notch is open on the spot, emission can also carry substantial amounts of height
Warm dust, causes tapping process dust from flying, causes environmental pollution and potential safety hazard.This is the main of existing working site pollution
Reason.
3rd, from coal pulverizer slag-drip opening to slag case, there are valve, flange connection, internal Non-smooth surface is continuously coupled, therefore, work as deslagging
During when having foreign body, Residue extraction pipeline will be blocked, discovery " will be flooded mill " not in time, is likely to result in more major accident.Clearly
Except the foreign body in scum pipe, need coal pulverizer out of service.Have a strong impact on coal pulverizer normally to run, increase operation costs.
Due to the presence of above-mentioned phenomenon, the equipment in Factory Building is chronically in severe dust atmosphere, electrical apparatus control system,
All kinds of operated pneumatic valves, electromagnetic valve, hydraulic valve are easy to damage, and cause to keep in repair, safeguard and replacement cost increase.It is prior
It is that such working environment severely compromises the health of human body of staff in Factory Building.Thus, it is desirable to provide one kind can be from root
The brand-new all-sealed dreg removing system of coal pulverizer that pebble coal is discharged on the spot is solved in sheet.
Utility model content
In order to solve the above problems, the purpose of this utility model is to provide one kind can improve working environment, labor intensity
Low, service life of equipment is long, the higher hermetically sealed stone coal discharge slag system of work efficiency.
The technical solution of the utility model is：A kind of all-sealed coal pulverizer stone coal collecting device, the device include row
Slag tube assembly, frame, electric lifting device, material position counter device, portable slag case and electrical control cubicles；Wherein, the frame includes top
Plate, column, sealing strip, pressure relief device, spray equipment, temperature measurement and alarm device, travel switch, hand oil pump, correcting stopping means
And supporting guide；
The electric lifting device include 2 motors, 2 supporting guides, 2 steps, 2 driving gears, 2 from
Gear, 2 screw mandrels, 2 travelling nut components, 2 top chocks, 2 frame sealing devices；
The top board two ends connect two columns and constitute frame main body, with deslagging tube assembly lower end phase above the top board
Connect, on the top board lower surface, be provided with inserted sealing joint strip, the pressure relief device, spray equipment, temperature measurement and alarm device point
Top board upper surface is not arranged on, the hand oil pump is arranged on column back side panel, the correcting stopping means are separately positioned on 2
On individual column medial wall, for guiding portable slag case positioning, the supporting guide is separately positioned on the inside of two columns middle
Position, 2 motors are arranged on the supporting guide, and the output shaft of the motor is affixed with the driving gear, described
Moving gear is meshed with the driven gear, and the driven gear is affixed with described leading screw one end, and the screw mandrel is vertically fixed on
Between step and top chock, step is arranged on the medial wall of column, and top chock is arranged on frame top board.
The travelling nut lifting assembly is socketed on the leading screw, and the leading screw along rotation moves up and down, the frame sealing dress
Put and be connected with top board, under be connected with travelling nut lifting assembly, 2 travel switches be separately positioned on step with it is upper
On bearing block, 2 travel switches, motor, pressure relief device, spray equipment and temperature measurement and alarm devices are controlled with the electrical control cubicles
Connection.
Further, the device is also included for preventing the motor damage time relay, the time relay to be arranged on electricity
In control cabinet.
Further, sealing plate is provided with the top of the portable slag case, the sealing plate is with the sealing strip on the top board
Cooperate sealing, and charging aperture is provided with the sealing plate, and the front end side wall of the sealing slag case is provided with manual handle, slag case
Observation window and fork truck interface, the bottom of the portable slag case are provided with two universal wheels and two directional wheels.
Further, the one ceramic wear-resisting push-pull valve and two road ceramic wear-resisting rotary valves in described deslagging tube assembly is pottery
Porcelain wearable valve.
Further, the lifting type level-sensing device includes level-sensing device support, cylinder and blocking rotary type level-sensing device；
The level-sensing device support is arranged on the survey material hole on the top board of the frame, and the cylinder is arranged on the support
Top, the blocking rotary type level-sensing device is arranged on the top of the lifting arm of cylinder.
This utility model is realized with the following method：This all-sealed dreg removing system of set coal pulverizer, has used one kind
Special ceramic wear-resisting valve, the valve, are compared with common metal, hard alloy etc. as sealing pair using engineering wear-resistant ceramic
Valve of the material as sealing pair, wear-resistant degree greatly improve, it is to avoid because of the internal hemorrhage due to trauma that valve seal surface wear is caused.Simultaneously
This ceramic valve can make valve close by adjusting the elasticity of spring in the form of spring jack-up ceramics flashboard is as sealing
Envelope it is tighter, accomplish No leakage, it is to avoid the leakage of valve, and the life-span be 3-5 times of common valve.Due to solving internal hemorrhage due to trauma and outer
Leak, therefore operator can work under more safety and clean environment, and also reduce the maintenance and replacing of equipment
Cost, extend the service life of equipment.Original mode for discharging pebble coal on the spot is changed to into all-sealed coal pulverizer stone
Sub- coal collection device so that operated by personnel is more safe and reliable, simple, labor intensity is lower：Working environment is more clear
It is clean, environmentally friendly.
Description of the drawings
Schematic elevation views of the Fig. 1 for the all-sealed coal pulverizer stone coal collecting device of this utility model.
Left view schematic diagrams of the Fig. 2 for the all-sealed coal pulverizer stone coal collecting device of this utility model.
Overall structure diagrams of the Fig. 3 for the all-sealed coal pulverizer stone coal collecting device of this utility model.
Fig. 4 is portable slag box structure schematic diagram in this utility model.
In figure：
1. deslagging tube assembly, 2. frame, 2-1. top boards, 2-2. columns, 2-3 sealing strips, 2-4. pressure relief devices, 2-5. spray
Device, 2-6. temperature measurement and alarm devices, 2-7. travel switches, 2-8. hand oil pumps, 3. 2-9. correcting stopping means, electronic lifting dress
Put, 3-1. motors, 3-2 supporting guides, 3-3 steps, 3-4. driving gears, 3-5 are moved from gear, 3-6. screw mandrels, 3-7.
Nut assembly, 3-8. top chocks, 3-9. frame sealing devices, 4. material position counter device, 4-1. level-sensing device supports, 4-2. cylinders,
4-3. blocking rotary type level-sensing devices, 5. portable slag case, 5-1. sealing plates, 5-2. manual handles, 5-3 slag case observation windows, 5-4. fork trucks
Interface, 5-5. universal wheels, 6. 5-6. directional wheels, electrical control cubicles.
Specific embodiment
Below in conjunction with the accompanying drawings the technical solution of the utility model is described further.
As Figure 1-4, the all-sealed coal pulverizer stone coal collecting device of this utility model, the device include scum pipe group
Part 1, frame 2, electric lifting device 3, material position counter device 4, portable slag case 5 and electrical control cubicles 6；
The frame 2 includes top board 2-1, column 2-2, sealing strip 2-3, pressure relief device 2-4, spray equipment 2-5, thermometric report
Alarm device 2-6, travel switch 2-7, hand oil pump（2-8）, correcting stopping means 2-9 and supporting guide 2-10；
The electric lifting device 3 includes 2 motor 3-1,2 supporting guide 3-2,2 step 3-3,2 actives
Gear 3-4,2 from gear 3-5,2 screw mandrel 3-6,2 travelling nut component 3-7,2 top chock 3-8,2 frames sealings
Device 3-9；
The material receiving tube 1-1 is inclined on the end face of top board 2-1 of the frame 2, the material receiving tube 1-1's
Discharging opening is tightly connected with the charging aperture on the top board 2-1, the wear-resisting rotation of one wear-resistant ceramic push-pull valve 1-2 and two roads
Rotary valve 1-4 is arranged on the material receiving tube 1-1, the observation window 1-3 be arranged on one wear-resistant ceramic push-pull valve 1-2 and
On the tube wall of the material receiving tube 1-1 between two road Wear-resisting rotating valve 1-4,
The top board 2-1 two ends connect two column 2-2 and constitute frame main body, and the top board 2-1 is provided with charging aperture, inclines
The lower end of the material receiving tube 1-1 for tiltedly arranging is connected with the charging aperture, and the material receiving tube 1-1 is provided with one wear-resistant ceramic push-pull valve
1-2 and two road Wear-resisting rotating valve 1-4, observation window, 1-3 are arranged on one wear-resistant ceramic push-pull valve 1-2 and two road Wear-resisting rotating valves
Between 1-4, the top board 2-1 lower surfaces are located in charging aperture surrounding edge and are provided with inserted sealing joint strip 2-3, pressure relief device
2-4, spray equipment 2-5, temperature measurement and alarm device 2-6 are separately positioned on top board 2-1 upper surfaces, and hand oil pump 2-8 is arranged on column
On 2-2 back side panels, the correcting stopping means 2-9 is separately positioned on 2 column 2-2 medial walls, for guiding portable slag
Case is positioned, and the supporting guide 3-2 is separately positioned on centre position on the inside of two column 2-2, and 2 motor 3-1 are arranged on
On the supporting guide 3-2, the output shaft of the motor 3-1 is affixed with the driving gear 3-4, the moving gear 3-4 and institute
State driven gear 3-5 to be meshed, the driven gear 3-5 is affixed with described leading screw 3-6 one end, the screw mandrel 3-6 is vertically fixed
Between step 3-3 and top chock 3-8, step 3-3 is arranged on the medial wall of column 2-2, top chock 3-8
It is arranged on frame top board 2-1.Travelling nut lifting assembly 3-7 is socketed on the leading screw 3-6, along the leading screw of rotation
3-6 moves up and down, and is connected with top board 2-1 on the frame sealing device 3-9, under be connected with travelling nut lifting assembly 3-7,
2 travel switch 2-7 are separately positioned on step 3-3 and top chock 3-8,2 the travel switch 2-7, electricity
Machine 3-1, pressure relief device 2-4, spray equipment 2-5 and temperature measurement and alarm device 2-6 are connected with the control of the electrical control cubicles 6, in electrical control cubicles 6
It is provided with for preventing the time relay of motor damage, the portable slag case 5 from connecting two positioned at by the top board 2-1 two ends
Column 2-2 constitutes the lower end of frame main body, is provided with sealing plate 5-1, the sealing plate 5-1 at the top of the portable slag case 5
Cooperate sealing with the sealing strip 2-3 on the top board 2-2, the sealing plate 5-1 is provided with charging aperture, the sealing slag case
The front end side wall of 5-1 is provided with manual handle 5-2, slag case observation window 5-3 and fork truck interface 5-4, the bottom of the portable slag case 5
Portion is provided with two universal wheel 5-5 and two directional wheel 5-6.The level-sensing device support 4-1 is arranged on the top board 2-1 of the frame 2
On survey material hole on, the cylinder 4-2 is arranged on the top of the support 4-1, and the blocking rotary type level-sensing device 4-3 is arranged on cylinder
The top of the lifting arm of 4-2.
Operation principle of the present utility model is：
Sealing slag case 5 is pushed into below frame 2, it is in place under the effect of frame both sides guide device, filled by electric up-down
Put and sealing slag case risen, under the control of travel switch with frame sealing plate under face seal, air cylinder driven blocking rotary type level-sensing device
Stretch in dreg discharging box and seal, start simultaneously at detection material position；
Two road wear-resistant ceramic rotary valves are opened, the pebble coal or dust that coal pulverizer is produced falls into close along sealing pipeline environment
Seal in slag case, an observation window is set on sealing slag case to facilitate the height of material position in observation slag case, when sealing slag case falls
When, blocking rotary type level-sensing device sends sound and light alarm.Two road wear-resistant ceramic changeover valves are closed, blanking is blocked.Open automatic decompression valve
Exclude the malleation in stone exhaust system.
Blocking rotary type level-sensing device is risen, Motorized lift device drives slag case to begin to decline, lower to lower stroke switch setting stops
During point, elevating mechanism stops declining, and slag case falls to the ground.With rotation fork truck or artificial by the pull-out of slag case, it is transferred to outdoor and refers to
Positioning puts deslagging.
During coal pulverizer normal discharge pebble coal, when in slag case, pebble coal temperature exceedes presetting temperature, survey
Temperature alarm device 2-6 starts to report to the police, and prompting staff's pebble coal may spontaneous combustion.By 6 control system of electrical control cubicles, spray dress
Put 2-5 to spray water into portable slag case 5, prevent stone coal spontaneous combustion.
When coal pulverizer normally runs, blanking situation inside scum pipe can be observed at any time by observation window 1-2.
When coal pulverizer normally runs, one wear-resistant ceramic push-pull valve 1-2 is normally opened.When two road ceramic wear-resisting rotary valve 1-4 send out
During raw failure, one ceramic wear-resisting push-pull valve 1-2 is reinstated, ensure that coal pulverizer normally runs, one ceramic wear-resisting push-pull valve only rises
Standby effect.
Claims (5)
1. a kind of all-sealed coal pulverizer stone coal collecting device, the device include deslagging tube assembly（1）, frame (2), 2 it is electric
Dynamic lifting device（3）, lifting type level-sensing device（4）, portable slag case (5) and electrical control cubicles（6）；Characterized in that, the frame
（2）Including top board（2-1）, column（2-2）, sealing strip（2-3）, pressure relief device（2-4）, spray equipment（2-5）, thermometric report to the police dress
Put（2-6）, travel switch（2-7）, hand oil pump（2-8）With correcting stopping means（2-9）；
The electric lifting device（3）Including motor（3-1）, supporting guide（3-2）, step（3-3）, driving gear（3-
4）, from gear（3-5）, leading screw（3-6）, travelling nut component（3-7）, top chock（3-8）, frame sealing device（3-9）；
Top board (2-1) two ends connect two columns（2-2）Composition frame main body, the top board（2-1）Above with scum pipe
Component（1）Lower end connects, the top board（2-1）Inserted sealing joint strip is provided with lower surface（2-3）, the pressure relief device
（2-4）, spray equipment（2-5）, temperature measurement and alarm device（2-6）It is separately positioned on top board（2-1）Upper surface, the hand oil pump
（2-8）It is arranged on column（2-2）On back side panel, the correcting stopping means（2-9）It is separately positioned on 2 columns（2-2）Inner side
On wall, for guiding portable slag case positioning, the supporting guide（3-2）It is separately positioned on two columns（2-2）In the middle of inner side
Position, 2 motors（3-1）It is arranged on the supporting guide（3-2）On, the motor（3-1）Output shaft and the master
Moving gear（3-4）It is affixed, the driving gear（3-4）With the driven gear（3-5）It is meshed, the leading screw（3-6）Vertically
It is arranged on step（3-3）With top chock（3-8）Between, the leading screw（3-6）One end is with described from gear（3-5）Gu
Connect, step（3-3）It is arranged on column（2-2）Medial wall on, top chock（3-8）It is arranged on frame top board（2-1）On,
The travelling nut lifting assembly（3-7）It is socketed in the leading screw（3-6）On, along the leading screw of rotation（3-6）Move up and down,
The frame sealing device（3-9）Upper and top board（2-1）It is connected, lower and travelling nut lifting assembly（3-7）It is connected, described in 2
Travel switch（2-7）It is separately positioned on step（3-3）With top chock（3-8）On, 2 travel switches（2-7）, electricity
Machine（3-1）, pressure relief device（2-4）, spray equipment（2-5）And temperature measurement and alarm device（2-6）With the electrical control cubicles（6）Control connects
Connect.
2. collection device according to claim 1, it is characterised in that the device also include for prevent the motor damage time after
Electrical equipment, the time relay are arranged on electrical control cubicles（6）It is interior.
3. collection device according to claim 1, it is characterised in that be provided with sealing plate at the top of the portable slag case (5)
（5-1）, the sealing plate（5-1）With the top board（2-2）On sealing strip（2-3）Cooperate sealing, the sealing plate（5-
1）It is provided with charging aperture, the sealing slag case（5-1）Front end side wall be provided with manual handle（5-2）, slag case observation window（5-3）
With fork truck interface（5-4）, the bottom of the portable slag case (5) is provided with two universal wheels（5-5）With two directional wheels（5-6）.
4. collection device according to claim 1, it is characterised in that described deslagging tube assembly（1）In one ceramics it is resistance to
Mill push-pull valve（1-2）With two road ceramic wear-resisting rotary valves（1-4）For ceramic wear-resisting valve.
5. collection device according to claim 1, it is characterised in that characterized in that, the lifting type level-sensing device（4）Bag
Include level-sensing device support（4-1）, cylinder（4-2）With blocking rotary type level-sensing device（4-3）；
The level-sensing device support（4-1）It is arranged on the frame（2）Top board（2-1）On survey material hole on, the cylinder（4-2）
It is arranged on the support（4-1）Top, the blocking rotary type level-sensing device（4-3）It is arranged on cylinder（4-2）Lifting arm top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620865261.4U CN206121898U (en) | 2016-08-10 | 2016-08-10 | Totally enclosed formula coal pulverizer stone coal collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620865261.4U CN206121898U (en) | 2016-08-10 | 2016-08-10 | Totally enclosed formula coal pulverizer stone coal collection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206121898U true CN206121898U (en) | 2017-04-26 |
Family
ID=58563471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620865261.4U Active CN206121898U (en) | 2016-08-10 | 2016-08-10 | Totally enclosed formula coal pulverizer stone coal collection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206121898U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109382197A (en) * | 2018-10-23 | 2019-02-26 | 大唐滨州发电有限公司 | Coal pulverizer stone coal scuttle jacks up sealing system |
-
2016
- 2016-08-10 CN CN201620865261.4U patent/CN206121898U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109382197A (en) * | 2018-10-23 | 2019-02-26 | 大唐滨州发电有限公司 | Coal pulverizer stone coal scuttle jacks up sealing system |
| CN109382197B (en) * | 2018-10-23 | 2020-09-29 | 大唐滨州发电有限公司 | Stone coal hopper jacking sealing system of coal mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191008 Address after: 450007 Zhengzhuang Road, Sun Zhuang village, West stream Lake Street, Zhongyuan District, Zhengzhou, Henan 356 Patentee after: Henan Dingsheng Aluminium Co., Ltd. Address before: 450007 Gongyi City, Zhengzhou province Longhai Road No. 162, No. 20, attached to No. Co-patentee before: Zhao Xing Patentee before: Zhao Yun Hui |