CN212644634U - Boiler tail gas treatment structure - Google Patents
Boiler tail gas treatment structure Download PDFInfo
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- CN212644634U CN212644634U CN202021357641.XU CN202021357641U CN212644634U CN 212644634 U CN212644634 U CN 212644634U CN 202021357641 U CN202021357641 U CN 202021357641U CN 212644634 U CN212644634 U CN 212644634U
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Abstract
The utility model relates to a boiler tail gas treatment structure relates to the technical field of boiler, including the furnace body, set up tail gas treatment mechanism on the furnace body, tail gas treatment mechanism includes burning case, heating pipe, some firearm, processing case, filter, absorption fan, and burning case setting is on the furnace body and with the furnace body intercommunication, the heating pipe setting in burning case, some firearm setting in burning case, processing case setting on the furnace body and with burning case intercommunication, the filter setting just is vertical state in processing the case, absorption fan sets up on processing the case. The utility model discloses an in the flue gas enters into the combustion box, the heating pipe heated the flue gas, then some firearms come to light the burning to the flue gas, and the flue gas after the burning passes through the filtration back discharge treatment case of filter to this has reduced the content of impurity in the exhaust flue gas, has reduced the pollution of impurity to the air in the flue gas.
Description
Technical Field
The utility model belongs to the technical field of the technique of boiler and specifically relates to a boiler tail gas treatment structure is related to.
Background
The boiler is an energy conversion device, electric energy or chemical energy of fuel is input into the boiler and is converted into heat energy, and steam, high-temperature water or an organic heat carrier with certain heat energy is output from the boiler.
In the prior art, reference is made to the chinese utility model patent with the publication number CN209655567U, which discloses a cover of a flue gas heat recovery boiler, which is mounted on the top of a boiler body to form a cavity; the bottom of the inner cavity of the furnace body is used for containing boiler water; the bottom of an inner cavity of the furnace body is provided with a heating cavity, the heating cavity is immersed in boiler water, fuel is combusted in the heating cavity to generate heat, the boiler water in the furnace body is heated, the top end of the heating cavity is provided with a flue gas outlet, and flue gas generated after combustion is upwards discharged from the flue gas outlet; a heat exchange cavity for containing boiler water is arranged in the furnace cover, a chimney penetrates through the furnace cover, and the outer wall of the chimney can be in contact with the boiler water in the heat exchange cavity; when the flue gas flows through the chimney, the flue gas exchanges heat with boiler water in the furnace cover to absorb heat carried by the flue gas; the boiler body is connected with the heat exchanger, and boiler water in the boiler body flows into the heat exchange cavity through the heat exchanger and exchanges heat with system water to heat the system water.
The technical scheme has the following defects: the fuel in the heating cavity can be burnt incompletely, so that the discharged flue gas contains more impurities, and the pollution to the air is heavier.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a boiler tail gas treatment structure has reduced the content of impurity in the exhaust flue gas, has reduced the pollution of impurity to the air in the flue gas
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a boiler tail gas treatment structure, includes the furnace body, set up the tail gas treatment mechanism with the furnace body intercommunication on the furnace body, tail gas treatment mechanism includes burning case, heating pipe, some firearm, processing case, filter, absorption fan, burning case setting on the furnace body and with the furnace body intercommunication, the heating pipe sets up in burning case, some firearm setting just is used for igniting the internal fuel of gas in the burning case, processing case setting on the furnace body and with burning case intercommunication, the filter setting just is vertical state in processing the case, absorption fan sets up on processing the case.
By adopting the technical scheme, the absorption fan is started, the flue gas enters the combustion box from the furnace body, the heating pipe heats the flue gas, the igniter ignites and combusts the flue gas, the combusted flue gas moves into the treatment box, and the flue gas is filtered by the filter plate and then discharged out of the treatment box, so that the content of impurities in the discharged flue gas is reduced, and the pollution of the impurities in the flue gas to air is reduced; meanwhile, the temperature of the flue gas after combustion is high, and impurities are less, so that the flue gas can be recycled.
The present invention may be further configured in a preferred embodiment as: the filter board level is provided with a plurality of and filtration pore diminishes along flue gas traffic direction gradually.
Through adopting above-mentioned technical scheme, a plurality of filters filter the impurity in the flue gas, and the filtration pore diminishes gradually simultaneously to this has improved the filter effect of filter to impurity in the flue gas, has reduced the content of impurity in the flue gas.
The present invention may be further configured in a preferred embodiment as: the heating pipe equipartition is provided with a plurality ofly and is the heliciform.
By adopting the technical scheme, the contact area between the heating pipe and the flue gas is increased, and the heating efficiency of the heating pipe to the flue gas is improved.
The present invention may be further configured in a preferred embodiment as: handle the clearance mechanism that is provided with the clearance filter on the case, clearance mechanism is including clearance board, drive screw, drive assembly, collection subassembly, the vertical setting that slides of clearance board just is located the flue gas entering one side of handling the case and is provided with the brush of contradicting on the filter on handling the inside wall of case, the vertical rotation setting of drive screw just with clearance board threaded connection on handling the case, drive assembly sets up on handling the case, the collection subassembly sets up on handling the case.
After the filter plate filters the flue gas for a period of time, more impurities can be attached to the filter plate and block the flue gas, so that the speed of the flue gas passing through the filter plate is reduced, and the filtering efficiency of the filter plate on the flue gas is reduced;
through adopting above-mentioned technical scheme, drive assembly starts to drive screw and rotates, and drive screw rotates and drives clearance board vertical movement, and clearance board vertical movement drives the brush and clears up the filter, and the impurity that the clearance got off enters into and collects in the collection subassembly to this accelerates the speed that the flue gas passes through the filter, has improved the filtration efficiency of filter to the flue gas.
The present invention may be further configured in a preferred embodiment as: the drive assembly comprises a worm wheel, a drive motor and a worm, the worm wheel is arranged on the drive screw, the drive motor is arranged on the processing box, and the worm is arranged on an output shaft of the drive motor and meshed with the worm wheel.
By adopting the technical scheme, the driving motor is started to drive the worm to rotate, the worm rotates to drive the worm wheel to rotate, and the worm wheel rotates to drive the driving screw to rotate, so that the purpose that the driving motor is started to drive the driving screw to rotate is achieved.
The present invention may be further configured in a preferred embodiment as: the collecting assembly comprises a collecting box and a cover plate, a sliding hole is formed in the side wall of the processing box below the filter plate, the collecting box slides on the sliding hole, and the cover plate is arranged on the collecting box and abutted against the outer side wall of the processing box.
Through adopting above-mentioned technical scheme, impurity moves down and falls to collect in the collection box and collect, when needing to clear up collection box simultaneously, the pulling apron drives and collects the box and dismantles from the hole that slides, then collects the box and clear up, and after the clearance was accomplished, will collect the box and install on the hole that slides for the apron is contradicted and is fixed a position the apron on handling the case, guarantees to collect the collection effect of box to impurity with this.
The present invention may be further configured in a preferred embodiment as: the side wall of the cover plate close to the treatment box is provided with a positioning column inserted and arranged on the treatment box and a sealing ring abutted to the outer side wall of the treatment box.
Through adopting above-mentioned technical scheme, the reference column is pegged graft and is installed and fix a position the collection box on handling the case, and the sealing washer has reduced the apron simultaneously and has handled the clearance between the case, has reduced the probability that the flue gas removed the air from the hole that slides, has reduced the pollution of flue gas to the air.
The present invention may be further configured in a preferred embodiment as: the utility model discloses a processing box, including the outlet duct, the setting of absorption fan is kept away from at the outlet duct and is handled case one end, be provided with on the outlet duct and get rid of the subassembly, it includes flexible mounting bracket, activated carbon plate, locating plate to get rid of the subassembly, set up the mounting hole with the intercommunication in the outlet duct on the outlet duct, the mounting bracket slides and sets up on the mounting hole, activated carbon plate joint is installed on the mounting bracket, the locating plate sets up on the mounting bracket and contradicts on the outlet duct lateral wall.
After the flue gas is combusted, harmful gases can be generated and can pollute the air when entering the air;
through adopting above-mentioned technical scheme, the flue gas removes in the outlet duct, and the harmful gas of active carbon board in to the flue gas is got rid of, and the pulling locating plate is dismantled the mounting bracket simultaneously, then changes the active carbon board, then installs the mounting bracket on the hole that slides for the locating plate is contradicted and is fixed a position on the outlet duct, changes the active carbon board with this, has improved the effect of getting rid of the harmful gas of active carbon board, has reduced the pollution that harmful gas produced the air in the flue gas.
To sum up, the utility model discloses a beneficial technological effect does:
1. the smoke enters the combustion box, the heating pipe heats the smoke, the igniter ignites and combusts the smoke, and the combusted smoke is filtered by the filter plate and then discharged out of the treatment box, so that the content of impurities in the discharged smoke is reduced, and the pollution of the impurities in the smoke to air is reduced;
2. the impurities in the flue gas are filtered by the plurality of filter plates, and meanwhile, the filter holes are gradually reduced, so that the filtering effect of the filter plates on the impurities in the flue gas is improved, and the content of the impurities in the flue gas is reduced; the spiral arrangement of the heating pipe increases the contact area between the heating pipe and the flue gas, and improves the heating efficiency of the heating pipe to the flue gas;
3. the filter plate is cleaned by driving the brush to vertically move through the starting of the driving motor, and the cleaned impurities fall into the collecting box for collection, so that the speed of the flue gas passing through the filter plate is increased, and the filtering efficiency of the filter plate on the flue gas is improved; meanwhile, the collecting box can be detached for cleaning, so that the collecting effect of the collecting box on impurities is improved;
4. remove the outlet duct through the flue gas in, the harmful gas of active carbon board in to the flue gas is got rid of, dismantles the mounting bracket simultaneously and gets off to change the active carbon board, then installs the mounting bracket on the outlet duct, has improved the effect of getting rid of the harmful gas of active carbon board, has reduced the pollution that harmful gas produced the air in the flue gas.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic structural diagram of a tail gas treatment mechanism of the present invention, in which a side wall of a combustion box is viewed in section, and a side wall of the treatment box is partially sectioned;
FIG. 3 is a schematic structural view of the cleaning mechanism of the present invention, which is a sectional view of a side wall of the processing chamber, and explodes the collecting assembly;
fig. 4 is an exploded view of the removal assembly of the present invention.
Reference numerals: 1. a furnace body; 11. an input tube; 12. an output pipe; 13. an air inlet pipe; 14. a baffle plate; 15. a slide bar; 2. a tail gas treatment mechanism; 21. a combustion box; 22. heating a tube; 23. an igniter; 24. a treatment tank; 241. a sliding hole; 25. a filter plate; 26. an absorption fan; 3. a cleaning mechanism; 31. cleaning the plate; 311. a brush; 32. a drive screw; 33. a drive assembly; 331. a worm gear; 332. a drive motor; 333. a worm; 34. a collection assembly; 341. a collection box; 342. a cover plate; 41. a positioning column; 42. a seal ring; 43. a handle; 5. an air outlet pipe; 51. a horizontal tube; 52. a vertical tube; 521. mounting holes; 6. removing the component; 61. a mounting frame; 611. a clamping hole; 62. an activated carbon plate; 63. positioning a plate; 631. and (4) a handle.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for utility model's a boiler tail gas treatment structure, including furnace body 1, set up the tail gas treatment mechanism 2 with furnace body 1 intercommunication on the furnace body 1.
Referring to fig. 1 and 2, the tail gas treatment mechanism 2 comprises a combustion box 21, a heating pipe 22, an igniter 23, a treatment box 24, a filter plate 25 and an absorption fan 26, wherein the combustion box 21 is fixedly arranged at the top end of the furnace body 1, and an input pipe 11 communicated with the furnace body 1 is fixedly arranged on the side wall of the combustion box 21 and positioned at one side close to the furnace body 1; the heating pipes 22 are fixedly arranged on two opposite inner side walls of the combustion box 21, a plurality of heating pipes 22 are arranged in an array manner in the horizontal direction and the vertical direction, and the heating pipes 22 are spiral; the igniter 23 is fixedly installed on the inner side wall of the combustion box 21 and is used for igniting flue gas in the combustion box 21.
The treatment box 24 is fixedly arranged at the top end of the furnace body 1, the output pipe 12 is fixedly arranged on the side wall of the combustion box 21 far away from one side of the input pipe 11, three vertically-arranged air inlet pipes 13 are fixedly arranged at one end of the output pipe 12 far away from the combustion box 21, the three air inlet pipes 13 are in a horizontal state, one end of the three air inlet pipes far away from the output pipe 12 is fixedly connected with the side wall of the treatment box 24, and the axes of the three air inlet pipes 13 are parallel to the axis of; filter 25 fixed mounting is on handling 24 inside walls of case, and filter 25 is provided with three along being on a parallel with 13 axis arrays of intake pipe, and simultaneously filter 25's both sides wall and top respectively with handle case 24's both sides wall and interior top end fixed connection, and three filter 25 filtration pores diminish along flue gas direction of motion gradually, and the projection on three 13 horizontal directions of intake pipe is located filter 25 simultaneously. The bottom end fixed mounting of the filter 25 farthest from the air inlet pipe 13 is provided with a baffle 14 which is horizontal, one end of the baffle 14 far away from the filter 25 props against the inner side wall of the treatment box 24 far away from one side of the air inlet pipe 13, and meanwhile, the baffle 14 also props against the inner side wall of the treatment box 24 connected with the filter 25.
Referring to fig. 2 and 3, it is provided with clearance filter 25's clearance mechanism 3 on the case 24 to handle, clearance mechanism 3 includes clearance board 31, drive screw 32, drive assembly 33, collect subassembly 34, it has vertical slide bar 15 to be located filter 25 near intake pipe 13 one side fixed mounting on the roof in case 24, clearance board 31 vertical slides and installs on slide bar 15, equipartition fixed mounting has brush 311 of contradicting on filter 25 on the lateral wall that clearance board 31 is close to filter 25 one side, drive screw 32 is vertical to pass and is handled the case 24 top, and drive screw 32 and clearance board 31 threaded connection, slide bar 15 simultaneously, clearance board 31 and drive screw 32 all are provided with threely along being on a parallel with intake pipe 13 axis array, and drive screw 32's bottom flushes with slide bar 15 bottom and is located the below of filter 25 bottom.
The driving component 33 is arranged at the top end of the treatment box 24, the driving component 33 comprises a worm wheel 331, a driving motor 332 and a worm 333, the worm wheel 331 is connected with a driving screw rod 32 located above the treatment box 24 in a key mode, the driving motor 332 is fixedly installed at the top end of the treatment box 24, the worm 333 is fixedly installed on an output shaft of the driving motor 332, and the three worm gears 333 are arranged in an end-to-end mode and are respectively meshed with the three worm wheels 331.
The collecting assembly 34 comprises a collecting box 341 and a cover plate 342, a sliding hole 241 is formed in the side wall of the processing box 24 positioned below the filter plate 25, the collecting box 341 is slidably mounted on the sliding hole 241, the cover plate 342 is fixedly mounted on the collecting box 341 and abuts against the outer side wall of the processing box 24, positioning pillars 41 inserted and mounted on the processing box 24 are fixedly mounted on the side wall of the cover plate 342 close to the processing box 24, two positioning pillars 41 are horizontally arranged in an array manner, a sealing ring 42 is sleeved on one side of the collecting box 341 close to the cover plate 342, the positioning pillars 41 horizontally penetrate through the sealing ring 42, and the sealing ring 42 abuts against the side wall of the cover plate 342 and the side wall of; the handle 43 is fixedly mounted on the side wall of the cover plate 342 on the side away from the collecting box 341.
Referring to fig. 2 and 4, an outlet pipe 5 is fixedly installed on the side wall of the treatment box 24 and on the side far away from the inlet pipe 13, the outlet pipe 5 comprises a horizontal pipe 51 and a vertical pipe 52 with square cross sections, the horizontal pipe 51 is fixedly installed on the side wall of the treatment box 24 and is in a horizontal state, and the vertical pipe 52 is integrally arranged on one end of the horizontal pipe 51 far away from the treatment box 24, and the pipe opening is vertically upward; the absorption fan 26 is fixedly installed on an end of the vertical pipe 52 remote from the horizontal pipe 51.
The vertical pipe 52 is provided with a removing assembly 6, the removing assembly 6 comprises a movable mounting frame 61, an activated carbon plate 62 and a positioning plate 63, a mounting hole 521 is formed in the side wall of the vertical pipe 52, the mounting frame 61 is horizontally installed on the mounting hole 521 in a sliding mode and extends into the vertical pipe 52, and the projection of the mounting frame 61 in the vertical direction is shaped like a Chinese character 'hui'; mounting bracket 61 has been seted up and has been the joint hole 611 of step shape, and the joint of activated carbon plate 62 is installed on joint hole 611, and locating plate 63 fixed mounting is on the mounting bracket 61 lateral wall, and locating plate 63 contradicts on the lateral wall of vertical pipe 52, and fixed mounting has handle 631 on the lateral wall that locating plate 63 kept away from mounting bracket 61 simultaneously.
The implementation principle of the embodiment is as follows:
the absorption fan 26 is started, the flue gas enters the combustion box 21, the heating pipe 22 heats the flue gas, the igniter 23 ignites and burns the flue gas, the burnt flue gas moves into the treatment box 24, the flue gas is filtered by the filter plate 25 and then moves into the horizontal pipe 51, then moves onto the activated carbon plate 62 in the vertical pipe 52 to remove harmful gas in the flue gas, and finally is discharged into the air, so that the content of impurities and harmful gas in the discharged flue gas is reduced, and the pollution of the impurities and harmful gas in the flue gas to the air is reduced; meanwhile, the temperature of the flue gas discharged into the air is higher, and impurities are less, so that the flue gas can be recycled.
The driving motor 332 starts to drive the vertical movement of the hairbrush 311 plate, the vertical movement of the hairbrush 311 plate drives the hairbrush 311 to clean the filter plate 25, the impurities after cleaning fall into the collecting box 341 to be collected, the speed of the smoke passing through the filter plate 25 is accelerated, and the filtering efficiency of the filter plate 25 on the smoke is improved. Pulling apron 342 and removing and dismantling collection box 341, then clearing up collection box 341, after the clearance is accomplished, install collection box 341 on the hole 241 that slides, and make reference column 41 peg graft and install on handling the case 24, and sealing washer 42 contradicts on the lateral wall of locating plate 63 and the relative one side of handling the case 24 to this has reduced the probability that the flue gas removed the air from the hole 241 that slides, has reduced the pollution of flue gas to the air.
Pulling locating plate 63 simultaneously and dismantling mounting bracket 61, then changing activated carbon plate 62, then sliding mounting bracket 61 and installing on hole 241 that slides to this changes activated carbon plate 62, has improved activated carbon plate 62 and to harmful gas's the effect of getting rid of, has reduced the pollution that harmful gas produced the air in the flue gas.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a boiler tail gas treatment structure, includes furnace body (1), its characterized in that: set up tail gas processing mechanism (2) with furnace body (1) intercommunication on furnace body (1), tail gas processing mechanism (2) are including burning case (21), heating pipe (22), some firearm (23), processing case (24), filter (25), absorption fan (26), burning case (21) set up on furnace body (1) and communicate with furnace body (1), heating pipe (22) set up in burning case (21), some firearm (23) set up in burning case (21) and are used for some internal fuel of gas, processing case (24) set up on furnace body (1) and communicate with burning case (21), filter (25) set up in processing case (24) and are vertical state, absorption fan (26) set up on processing case (24).
2. The boiler tail gas treatment structure according to claim 1, characterized in that: the filter plate (25) is horizontally provided with a plurality of filter holes which are gradually reduced along the smoke running direction.
3. The boiler tail gas treatment structure according to claim 1, characterized in that: the heating pipe (22) equipartition is provided with a plurality ofly and is the heliciform.
4. The boiler tail gas treatment structure according to claim 1, characterized in that: handle and be provided with clearance mechanism (3) of clearance filter (25) on case (24), clearance mechanism (3) are including clearance board (31), drive screw (32), drive assembly (33), collection subassembly (34), clearance board (31) vertical slip set up on the inside wall of handling case (24) and be located one side that is close to the flue gas entering and handles case (24) and be provided with brush (311) of contradicting on filter (25), drive screw (32) vertical rotation set up on handling case (24) and with clearance board (31) threaded connection, drive assembly (33) set up on handling case (24), collection subassembly (34) set up on handling case (24).
5. The boiler tail gas treatment structure according to claim 4, characterized in that: the drive assembly (33) comprises a worm wheel (331), a drive motor (332) and a worm (333), the worm wheel (331) is arranged on the drive screw rod (32), the drive motor (332) is arranged on the treatment box (24), and the worm (333) is arranged on an output shaft of the drive motor (332) and meshed with the worm wheel (331).
6. The boiler tail gas treatment structure according to claim 4, characterized in that: the collecting assembly (34) comprises a collecting box (341) and a cover plate (342), a sliding hole (241) is formed in the side wall of the processing box (24) below the filter plate (25), the collecting box (341) is arranged on the sliding hole (241) in a sliding mode, and the cover plate (342) is arranged on the collecting box (341) and abuts against the outer side wall of the processing box (24).
7. The boiler tail gas treatment structure according to claim 6, characterized in that: the side wall of the cover plate (342) close to the treatment box (24) is provided with a positioning column (41) inserted and arranged on the treatment box (24) and a sealing ring (42) abutted against the side wall of the treatment box (24).
8. The boiler tail gas treatment structure according to claim 1, characterized in that: handle case (24) and be provided with outlet duct (5), it is served to keep away from handling case (24) in outlet duct (5) to absorb fan (26), be provided with on outlet duct (5) and get rid of subassembly (6), it includes movable mounting bracket (61), activated carbon plate (62), locating plate (63) to get rid of subassembly (6), set up on outlet duct (5) with mounting hole (521) of outlet duct (5) interior intercommunication, mounting bracket (61) slide and set up on mounting hole (521), activated carbon plate (62) joint is installed on mounting bracket (61), locating plate (63) set up on mounting bracket (61) and contradict on outlet duct (5) lateral wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021357641.XU CN212644634U (en) | 2020-07-10 | 2020-07-10 | Boiler tail gas treatment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021357641.XU CN212644634U (en) | 2020-07-10 | 2020-07-10 | Boiler tail gas treatment structure |
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| CN212644634U true CN212644634U (en) | 2021-03-02 |
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| CN202021357641.XU Active CN212644634U (en) | 2020-07-10 | 2020-07-10 | Boiler tail gas treatment structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113686164A (en) * | 2021-08-26 | 2021-11-23 | 合肥日新高温技术有限公司 | Flue gas treatment system of high-temperature carbonization furnace |
| CN116688665A (en) * | 2023-06-05 | 2023-09-05 | 江苏永纪实业集团有限公司 | Flue gas purifying equipment and purifying process for sulfuric acid purification |
-
2020
- 2020-07-10 CN CN202021357641.XU patent/CN212644634U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113686164A (en) * | 2021-08-26 | 2021-11-23 | 合肥日新高温技术有限公司 | Flue gas treatment system of high-temperature carbonization furnace |
| CN116688665A (en) * | 2023-06-05 | 2023-09-05 | 江苏永纪实业集团有限公司 | Flue gas purifying equipment and purifying process for sulfuric acid purification |
| CN116688665B (en) * | 2023-06-05 | 2024-01-30 | 江苏永纪实业集团有限公司 | Flue gas purifying equipment and purifying process for sulfuric acid purification |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Chunhui solid waste treatment Co.,Ltd. Assignor: ZHEJIANG CHUNHUI ENVIRONMENTAL PROTECTION ENERGY Co.,Ltd. Contract record no.: X2021980008501 Denomination of utility model: A boiler tail gas treatment structure Granted publication date: 20210302 License type: Common License Record date: 20210830 |
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| EC01 | Cancellation of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Zhejiang Chunhui solid waste treatment Co.,Ltd. Assignor: ZHEJIANG CHUNHUI ENVIRONMENTAL PROTECTION ENERGY CO.,LTD. Contract record no.: X2021980008501 Date of cancellation: 20230906 |