CN203704003U - Desulfurization baffle door - Google Patents
Desulfurization baffle door Download PDFInfo
- Publication number
- CN203704003U CN203704003U CN201320772204.8U CN201320772204U CN203704003U CN 203704003 U CN203704003 U CN 203704003U CN 201320772204 U CN201320772204 U CN 201320772204U CN 203704003 U CN203704003 U CN 203704003U
- Authority
- CN
- China
- Prior art keywords
- driving shaft
- doorframe
- upper driving
- baffles
- baffle plate
- 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.)
- Expired - Lifetime
Links
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 27
- 230000023556 desulfurization Effects 0.000 title abstract description 5
- 238000005096 rolling process Methods 0.000 claims description 13
- 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 description 11
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 11
- 239000007789 gas Substances 0.000 description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 7
- 239000000779 smoke Substances 0.000 description 7
- 229910052717 sulfur Inorganic materials 0.000 description 7
- 239000011593 sulfur Substances 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The utility model relates to a desulfurization baffle door. The desulfurization baffle door comprises a door frame, wherein baffles and driving shafts are arranged in the door frame; the baffles are used for closing the door frame; the driving shafts drive the baffles to be rotatably opened and closed and are provided with an actuation mechanism in a linkage manner; the baffles are divided into upper baffles and lower baffles; the driving shafts are divided into an upper driving shaft and a lower driving shaft which respectively correspond to the upper baffles and the lower baffles; the upper driving shaft extends to the outer side of the door frame, and a rotary control device is arranged at the end part of the upper driving shaft and comprises a mounting shaft parallel to the upper driving shaft; micro switches electrically connected with the actuation mechanism are arranged on the mounting shaft at equal intervals, and comprise an operation switch and an emergency stop switch; contact blocks matched with the micro switches are arranged on the circumferential surface of the upper driving shaft, are divided into an operation contact block and an emergency stop contact block, and are arranged in a staggered manner along the circumferential direction of the upper driving shaft. According to the scheme, the utility model provides the desulfurization baffle door of which the baffles rotate at an accurate angle.
Description
Technical field
The utility model relates to a kind of flue gas desulphurization system, is specifically related to a kind of desulfuration baffle door.
Background technology
In large-scale thermal power industry, metallurgy industry, often has a large amount of sulfur-containing smoke gas to discharge, and sulfur-containing smoke gas can cause the pollution to atmosphere, forms acid rain.At present, conventional flue gas desulphurization system discharges after sulfur-containing smoke gas is processed again, but in the time that flue gas desulphurization system breaks down, need block fume emission with desulfuration baffle door, prevent that sulfur-containing smoke gas from leaking, or make flue gas enter other flue gas desulfurization units by flue, so the sealing property of desulfuration baffle door has often just determined the barrier effect of flue gas desulphurization system.
Traditional desulfuration baffle door is the two baffle plates of twin shaft, by the rotation of baffle plate, the seal of the end that two baffle plates are relative is fitted and form the effect of sealing, but, in actual use, often cause waste and the fume emission Efficiency Decreasing of the energy due to the excessive rotation of baffle plate, secondly, often temperature is higher to be desulfurized the sulfur-containing smoke gas that baffle door stops, for a long time contact meeting with desulfuration baffle door the seal on desulfuration baffle door and bearing are caused damage, affect service life.
Summary of the invention
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of baffle plate anglec of rotation desulfuration baffle door accurately.
For achieving the above object, the utility model provides following technical scheme: comprise doorframe, the driving shaft that is provided for sealing the baffle plate of doorframe in described doorframe and drives baffle plate rotating open-close, described driving shaft is linkedly set with executing agency, described baffle plate is divided into overhead gage and lower baffle plate, described driving shaft is divided into and overhead gage and lower baffle plate upper driving shaft and the lower driving shaft of corresponding setting respectively, it is characterized in that: described upper driving shaft extends to doorframe outside and end is provided with rotating control assembly, described rotating control assembly comprises the installation shaft be arrangeding in parallel with upper driving shaft, in described installation shaft, be equidistantly provided with the microswitch being electrically connected with executing agency, described microswitch comprises run switch and emergency stop switch, on described upper driving shaft side face, be provided with the contact block being equipped with microswitch, described contact block is divided into operation contact block and stops contact block and be circumferentially crisscross arranged along upper driving shaft with anxious.
By adopting technique scheme, executing agency's operation when operation contact block coordinates with run switch conflict, upper driving shaft and lower driving shaft can drive overhead gage and lower baffle plate to be rotated, in the time that operation contact block departs from run switch, executing agency stops, if encountering when foreign matter disturbs run switch causes executing agency to continue to move and exceed limited range, suddenly stopping contact block can contact emergency stop switch and force to stop executing agency, give desulfuration baffle door double insurance, ensure that the baffle plate anglec of rotation accurately can excessively not opened or closure.
The utility model is further set to: described contact block comprises fixed part and contact site, described fixed part is the annular construction member that is sheathed on driving shaft, between described fixed part and upper driving shaft, be equipped with set bolt, described contact site is the arc component fixing with fixed part, described contact site is provided with arc contact surface towards microswitch, described contact site be hollow setting and by sheet metal around forming.
By adopting technique scheme, fixed part is convenient to contact block and is installed on driving shaft, when contact site ensures to contact with microswitch, the degree of depth of feeding is identical, reduce the contact movement amplitude of microswitch, ensure its service life, contact site is hollow setting and avoids upper driving shaft unbalance stress to open and cause difficulty to overhead gage by sheet metal around forming, and extends the service life of desulfuration baffle door.
The utility model is further set to: described microswitch comprises body and actuated element, and described actuated element comprises drive link, rolls and be provided with and the arc contact surface wheel shape piece coordinating of conflicting in described drive link end.
By adopting technique scheme, drive link end arranges rotating wheel shape piece and reduces the frictional force producing when arc contact surface contacts with microswitch, avoids microswitch due to frictional force transverse warping, further increases the service life.
The utility model is further set to: described driving shaft extends to doorframe outside and end is fixedly installed linkage block, described linkage block two ends are respectively arranged with extension, described upper driving shaft and the extension of lower driving shaft is corresponding and between the hinged gangbar that is provided with, described executing agency is positioned at lower driving shaft extends the end in doorframe outside.
By adopting technique scheme, for executing agency synchronous upper driving shaft and lower driving shaft of driving is simultaneously set, ensures that two baffle plates open simultaneously, and the saving energy.
The utility model is further set to: described executing agency is motor, is provided with the manual turntable for driving shaft under manual rotation on described motor, is vertically installed with the handle for rotary manual rotating disk on described manual turntable.
By adopting technique scheme, manual turntable coordinates handle manual rotating driveshaft progressively in the time of debug process, is convenient to control, and improves practicality.
The utility model is further set to: described doorframe top is provided with the cooling-air valve arranging with upper driving shaft extension interlock, when described overhead gage and lower baffle plate are provided with closure and cooling-air valve UNICOM and run through the circulation passage of setting.
By adopting technique scheme, cooling-air valve one end and circulation passage are connected, one end and cooling-air source join, in the time that baffle plate is closed, cooling-air valve is opened in upper driving shaft extension interlock, cooling-air source is carried out cooling to baffle plate, reducing sulfur-containing smoke gas long term high temperature damages baffle plate and seal, cannot adopt liquid cools, avoid liquid to coordinate air to corrode baffle plate, circulation passage strengthens the rate of discharge of cleaned gas in the time that baffle plate is opened, and improves the operating efficiency of integral device.
The utility model is further set to: described cooling-air valve level and be provided with control lever towards upper driving shaft, described control lever is vertical and be fixedly installed extension rod away from the end of cooling-air valve, and between described extension rod end and the linkage block of upper driving shaft, relative gangbar is parallel and hinged is provided with synchronous drive rod.
By adopting technique scheme, control lever coordinates extension rod and synchronous drive rod to make the rotational synchronization of control lever and driving shaft, and in the time opening baffle plate, closed cooling-air valve, opens cooling-air valve when closed baffle plate.
The utility model is further set to: described doorframe top is provided with the rotating turret that several wear for control levers, and described rotating turret is positioned at the position that control lever wears and is provided with the 3rd rolling bearing pedestal.
By adopting technique scheme, rotating turret coordinates the 3rd rolling bearing pedestal to improve the rotational stability of control lever, and reducing external environment affects it.
The utility model is further set to: described doorframe is positioned at the extended position of driving shaft and is fixedly installed the first rolling bearing pedestal that is sheathed on driving shaft, described doorframe outside is also provided with U-shaped bearing bracket stand, described U-shaped bearing bracket stand comprises both sides and the fixing support of doorframe and the platform at middle part, is fixedly installed the second rolling bearing pedestal that is sheathed on driving shaft on described platform.
By adopting technique scheme, two rolling bearings have ensured the rotational stability of driving shaft to greatest extent, before comparing, a bearing are only set and cannot meet the situation that load is larger.
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Brief description of the drawings
Fig. 1 is the stereogram of the utility model detailed description of the invention;
Fig. 2 is the enlarged drawing of A in Fig. 1;
Fig. 3 is the enlarged drawing of B in Fig. 1;
Fig. 4 is the cooperation schematic diagram of contact block and microswitch in the utility model detailed description of the invention;
The cooperation schematic diagram of baffle plate and driving shaft in Fig. 5 the utility model detailed description of the invention.
Detailed description of the invention
As Figure 1-Figure 5, the utility model discloses a kind of desulfuration baffle door, comprise doorframe 1, the driving shaft 3 that is provided for sealing the baffle plate 2 of doorframe 1 in doorframe 1 and drives baffle plate rotating open-close, driving shaft 3 is linkedly set with executing agency 4, baffle plate 2 is divided into overhead gage 21 and lower baffle plate 22, driving shaft 3 is divided into and overhead gage 21 and lower baffle plate 22 upper driving shaft 31 and the lower driving shaft 32 of corresponding setting respectively, upper driving shaft 31 extends to doorframe 1 outside and end is provided with rotating control assembly, rotating control assembly comprises the installation shaft 5 be arrangeding in parallel with upper driving shaft 31, in installation shaft 5, be equidistantly provided with the microswitch 7 being electrically connected with executing agency 4, microswitch comprises run switch 71 and emergency stop switch 72, on upper driving shaft 31 side faces, be provided with the contact block 6 being equipped with microswitch, contact block is divided into operation contact block 61 and stops contact block 62 and be circumferentially crisscross arranged along upper driving shaft 31 with anxious, when operation contact block 61 coordinates with run switch 71 conflicts, executing agency 4 moves, upper driving shaft 31 and lower driving shaft 32 can drive overhead gage 21 and lower baffle plate 22 to be rotated, in the time that operation contact block 61 departs from run switch 71, executing agency 4 stops, if encountering when foreign matter disturbs run switch 71 causes executing agency 4 to continue to move and exceed limited range, suddenly stop contact block 62 and can force to stop executing agency by contact emergency stop switch 72, give desulfuration baffle door double insurance, ensure that the baffle plate anglec of rotation accurately can excessively not opened or closure.
Contact block 6 comprises fixed part 63 and contact site 64, fixed part 63 is for being sheathed on the annular construction member of driving shaft 31, between fixed part 63 and upper driving shaft 31, be equipped with set bolt, contact site 64 is the arc component fixing with fixed part 63, contact site 64 is provided with arc contact surface 641 towards microswitch 7, contact site 64 be hollow setting and by sheet metal around forming, fixed part 63 is convenient to contact block 6 and is installed on driving shaft 5, when contact site 64 ensures to contact with microswitch 7, the degree of depth of feeding is identical, reduce the contact movement amplitude of microswitch 7, ensure its service life, contact site 64 is hollow setting and avoids upper driving shaft 31 unbalance stress to open and cause difficulty to overhead gage 21 by sheet metal around forming, extend the service life of desulfuration baffle door.
Microswitch 7 comprises body 73 and actuated element, actuated element comprises drive link 74, roll and be provided with and the arc contact surface 641 wheel shape piece 741 coordinating of conflicting in drive link 74 ends, drive link 74 ends arrange rotating wheel shape piece 741 and reduce the frictional force producing when arc contact surface 641 contacts with microswitch 7, avoid microswitch 7 due to frictional force transverse warping, further increase the service life.
Driving shaft 3 extends to doorframe 1 outside and end is fixedly installed linkage block 33, linkage block 33 two ends are respectively arranged with extension 331, the extension 331 of upper driving shaft 31 and lower driving shaft 32 corresponding and between the hinged gangbar 332 that is provided with, executing agency 4 is positioned at lower driving shaft 32 extends the end in doorframe 1 outside, be used for arranging an executing agency 4 synchronous upper driving shaft 31 and the lower driving shaft 32 of driving simultaneously, ensure that two baffle plates open simultaneously, and save the energy.
Executing agency 4 is motor, on motor, be provided with the manual turntable 41 for driving shaft under manual rotation, on manual turntable 41, be vertically installed with the handle 42 for rotary manual rotating disk, manual turntable 41 coordinates handle 42 manual rotating driveshaft 3 progressively in the time of debug process, be convenient to control, improve practicality.
Doorframe 1 top is provided with the cooling-air valve 8 arranging with upper driving shaft 31 extension 331 interlocks, when overhead gage 21 and lower baffle plate 22 are provided with closure and cooling-air valve 8 UNICOMs and run through the circulation passage 211 of setting, cooling-air valve 8 one end and circulation passage 211 are connected, one end and cooling-air source join, in the time that baffle plate 2 is closed, cooling-air valve 8 is opened in upper driving shaft 31 extension 331 interlocks, cooling-air source is carried out cooling to baffle plate 2, reducing sulfur-containing smoke gas long term high temperature damages baffle plate 2 and seal, cannot adopt liquid cools, avoid liquid to coordinate air to corrode baffle plate 2, circulation passage 211 strengthens the rate of discharge of cleaned gas in the time that baffle plate is opened, improve the operating efficiency of integral device.
Cooling-air valve 8 levels and be provided with control lever 81 towards upper driving shaft, control lever 81 is vertical and be fixedly installed extension rod 82 away from the end of cooling-air valve 8, between the linkage block 33 of extension rod 82 ends and upper driving shaft 31, relative gangbar 33 is parallel and hinged is provided with synchronous drive rod 83, control lever 81 coordinates extension rod 82 and synchronous drive rod 83 to make the rotational synchronization of control lever and driving shaft 3, in the time opening baffle plate 2, closed cooling-air valve 8, opens cooling-air valve 8 when closed baffle plate 2.
Doorframe 1 top is provided with several rotating turrets 11 wearing for control lever, rotating turret 11 is positioned at the position that control lever 81 wears and is provided with the 3rd rolling bearing pedestal 111, rotating turret 11 coordinates the 3rd rolling bearing pedestal 111 to improve the rotational stability of control lever, and reducing external environment affects it.
Doorframe 1 is positioned at the extended position of driving shaft 2 and is fixedly installed the first rolling bearing pedestal 12 that is sheathed on driving shaft, doorframe 1 outside is also provided with U-shaped bearing bracket stand 13, U-shaped bearing bracket stand 13 comprises both sides and the fixing support 131 of doorframe and the platform 132 at middle part, on platform 132, be fixedly installed the second rolling bearing pedestal 133 that is sheathed on driving shaft 2, two rolling bearings have ensured the rotational stability of driving shaft 2 to greatest extent, before comparing, a bearing are only set and cannot meet the situation that load is larger.
Claims (9)
1. a desulfuration baffle door, comprise doorframe, the driving shaft that is provided for sealing the baffle plate of doorframe in described doorframe and drives baffle plate rotating open-close, described driving shaft is linkedly set with executing agency, described baffle plate is divided into overhead gage and lower baffle plate, described driving shaft is divided into and overhead gage and lower baffle plate upper driving shaft and the lower driving shaft of corresponding setting respectively, it is characterized in that: described upper driving shaft extends to doorframe outside and end is provided with rotating control assembly, described rotating control assembly comprises the installation shaft be arrangeding in parallel with upper driving shaft, in described installation shaft, be equidistantly provided with the microswitch being electrically connected with executing agency, described microswitch comprises run switch and emergency stop switch, on described upper driving shaft side face, be provided with the contact block being equipped with microswitch, described contact block is divided into operation contact block and stops contact block and be circumferentially crisscross arranged along upper driving shaft with anxious.
2. desulfuration baffle door according to claim 1, it is characterized in that: described contact block comprises fixed part and contact site, described fixed part is the annular construction member that is sheathed on driving shaft, between described fixed part and upper driving shaft, be equipped with set bolt, described contact site is the arc component fixing with fixed part, described contact site is provided with arc contact surface towards microswitch, described contact site be hollow setting and by sheet metal around forming.
3. desulfuration baffle door according to claim 2, is characterized in that: described microswitch comprises body and actuated element, and described actuated element comprises drive link, rolls and be provided with and the arc contact surface wheel shape piece coordinating of conflicting in described drive link end.
4. desulfuration baffle door according to claim 3, it is characterized in that: described driving shaft extends to doorframe outside and end is fixedly installed linkage block, described linkage block two ends are respectively arranged with extension, described upper driving shaft and the extension of lower driving shaft is corresponding and between the hinged gangbar that is provided with, described executing agency is positioned at lower driving shaft extends the end in doorframe outside.
5. desulfuration baffle door according to claim 4, it is characterized in that: described executing agency is motor, on described motor, be provided with the manual turntable for driving shaft under manual rotation, on described manual turntable, be vertically installed with the handle for rotary manual rotating disk.
6. desulfuration baffle door according to claim 5, it is characterized in that: described doorframe top is provided with the cooling-air valve arranging with upper driving shaft extension interlock, when described overhead gage and lower baffle plate are provided with closure and cooling-air valve UNICOM and run through the circulation passage of setting.
7. desulfuration baffle door according to claim 6, it is characterized in that: described cooling-air valve level and be provided with control lever towards upper driving shaft, described control lever is vertical and be fixedly installed extension rod away from the end of cooling-air valve, and between described extension rod end and the linkage block of upper driving shaft, relative gangbar is parallel and hinged is provided with synchronous drive rod.
8. desulfuration baffle door according to claim 7, is characterized in that: described doorframe top is provided with the rotating turret that several wear for control levers, and described rotating turret is positioned at the position that control lever wears and is provided with the 3rd rolling bearing pedestal.
9. according to the desulfuration baffle door described in claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8, it is characterized in that: described doorframe is positioned at the extended position of driving shaft and is fixedly installed the first rolling bearing pedestal that is sheathed on driving shaft, described doorframe outside is also provided with U-shaped bearing bracket stand, described U-shaped bearing bracket stand comprises both sides and the fixing support of doorframe and the platform at middle part, is fixedly installed the second rolling bearing pedestal that is sheathed on driving shaft on described platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320772204.8U CN203704003U (en) | 2013-11-28 | 2013-11-28 | Desulfurization baffle door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320772204.8U CN203704003U (en) | 2013-11-28 | 2013-11-28 | Desulfurization baffle door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203704003U true CN203704003U (en) | 2014-07-09 |
Family
ID=51054438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320772204.8U Expired - Lifetime CN203704003U (en) | 2013-11-28 | 2013-11-28 | Desulfurization baffle door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203704003U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152553A (en) * | 2017-05-23 | 2017-09-12 | 杭州杭锅通用设备有限公司 | A kind of high-temperature flue gas baffle door drive mechanism |
| CN107270318A (en) * | 2017-05-23 | 2017-10-20 | 杭州杭锅通用设备有限公司 | A kind of driving structure of high-temperature flue gas baffle door |
-
2013
- 2013-11-28 CN CN201320772204.8U patent/CN203704003U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152553A (en) * | 2017-05-23 | 2017-09-12 | 杭州杭锅通用设备有限公司 | A kind of high-temperature flue gas baffle door drive mechanism |
| CN107270318A (en) * | 2017-05-23 | 2017-10-20 | 杭州杭锅通用设备有限公司 | A kind of driving structure of high-temperature flue gas baffle door |
| CN107152553B (en) * | 2017-05-23 | 2019-01-11 | 杭州杭锅通用设备有限公司 | A kind of high-temperature flue gas baffle door drive mechanism |
| CN107270318B (en) * | 2017-05-23 | 2019-02-26 | 杭州杭锅通用设备有限公司 | A kind of driving structure of high-temperature flue gas baffle door |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203704003U (en) | Desulfurization baffle door | |
| CN201954964U (en) | Sealing device for trolley of sintering annular cooler | |
| CN102032785B (en) | Sealing device for trolley of sintering circular cooler | |
| CN204534626U (en) | Pneumatic non-return air door | |
| CN204718402U (en) | A kind of continuous pallettype sintering machine self-lubricating side-sealing device | |
| CN203642208U (en) | Desulfurizing baffle door | |
| CN206521512U (en) | A kind of aluminium ash fries grey machine | |
| CN202813644U (en) | Non-power natural ventilation dust-removal device of roof | |
| CN106807930B (en) | A kind of large ladle furnace hot repair is tumbled a dust removal method | |
| CN102679733A (en) | Novel high-temperature resistance heated furnace | |
| CN204328021U (en) | The effective interior pin tooth type gate valve of cogeneration vertically-supplying air | |
| CN208397352U (en) | A kind of spherical shearing Double-deck cinder discharge valve | |
| CN203065512U (en) | RH vacuum tank device | |
| CN204553875U (en) | Flue flap valve | |
| CN203532807U (en) | Self-sealing waste heat power generation flat gate valve | |
| CN2924325Y (en) | Suspension type hot air disperser | |
| CN201059871Y (en) | Top sealing plate linkage rod supporting mechanism of sintering device air box end | |
| CN201909329U (en) | Built-in type blind plate used in gas bypass system | |
| CN205037743U (en) | Induction heating furnace | |
| CN103569685B (en) | A kind of feed bin sealed gate | |
| CN201652393U (en) | Air damp door of flue | |
| CN202274758U (en) | Rotary dust collecting device | |
| CN202302010U (en) | Valve special for coal gas diffusion at top of blast furnace | |
| CN216263967U (en) | Movable dust hood of slab flame cutting machine | |
| CN201313915Y (en) | Sealing device for converter movable gas hood |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: TONGZHENG ENVIRONMENTAL PROTECTION GROUP CO.,LTD. Assignor: Jin Rongsen Contract record no.: 2016340000018 Denomination of utility model: Energy-storage quick-open type desulfurization baffle door Granted publication date: 20140709 License type: Exclusive License Record date: 20160825 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |