CN208799884U - A kind of coal burning dust collecting - Google Patents
A kind of coal burning dust collecting Download PDFInfo
- Publication number
- CN208799884U CN208799884U CN201821042847.6U CN201821042847U CN208799884U CN 208799884 U CN208799884 U CN 208799884U CN 201821042847 U CN201821042847 U CN 201821042847U CN 208799884 U CN208799884 U CN 208799884U
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- China
- Prior art keywords
- dust
- fixed
- air compartment
- frame
- collecting mechanism
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000000428 dust Substances 0.000 title claims abstract description 98
- 239000003245 coal Substances 0.000 title claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 22
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 238000007689 inspection Methods 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction 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 13
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 239000002699 waste material Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses a kind of coal burning dust collectings, its structure includes: upper cover plate, remittance air compartment, collecting mechanism, inspection door, bracket, fixed link, the utility model collecting mechanism simple structure, it is practical, not only dust purification is high-efficient, and the advantages of also reducing labor intensity and the actual bodily harm of worker, dust suction pump is installed on ash bucket, the sucking of dust can be accelerated, and increase absorption efficiency, moist dust can be dried by being equipped with fixed frame on filter bag frame, convenient for the collection of dust, dust enters the dust removal assembly in collecting mechanism by dust and gas entrance, after being filtered in dedusting filtering bag and filter bag frame, clean gas just enters in remittance air compartment by injection tube, the reuse to water resource is realized by water pump, avoid the waste of water resource.
Description
Technical field
The utility model is a kind of coal burning dust collecting, belongs to dust collecting field.
Background technique
Coal is our main energy sources of country, and coal is of wide application, so the dust of our countries is dirty
Than more serious, coal dust is flown upward dye, is effectively caused environmental pollution and is damaged to staff, but the prior art is not complete enough
Kind, the specific aim of collection method is weaker, can not be point-to-pointly for progress gas sampling at the discharge of dust exhaust gas.
Utility model content
In view of this, the utility model embodiment provides a kind of coal burning dust collecting, to improve existing skill
Art is incomplete, and the specific aim of collection method is weaker, can not be point-to-pointly for progress gas sampling at the discharge of dust exhaust gas
It is insufficient.
To achieve the goals above, the utility model is achieved through the following technical solutions: a kind of coal burning powder
Dirt collection device, structure include: upper cover plate, remittance air compartment, collecting mechanism, inspection door, bracket, fixed link, and the upper cover plate is perpendicular
It is directly installed on remittance air compartment top and is gap-matched, the remittance air compartment is vertically fixed on collecting mechanism upper end and and upper cover
The board shaft heart is conllinear, and the collecting mechanism is installed vertically on pedestal upper end and with remittance air compartment using matching, and the inspection door is cut
Face is rectangular configuration and level is tightly attached to collecting mechanism right end and is welded together, and the bracket is fixed on vertically to converge under air compartment
It holds and welds together with collecting mechanism, the fixed link sets there are four altogether and is uniformly installed on bracket left and right ends and adopts
It is secured with nuts, the bracket is integrated with fixed link, and the collecting mechanism is by ash exhauster, driving device, dedusting
Component, the outlet of net gas, injection tube, gas bag, filter bag frame, controller, dust and gas entrance composition, the ash exhauster are vertically arranged to
Dust removal assembly lower end and with driving device using matching, the driving device is conllinear with dust removal assembly axle center, the dedusting
Component level is installed on filter bag frame right end and with injection tube using being mechanically connected, and the net gas outlet level is tightly attached to remittance wind
Room side and weld together, the injection tube level through converge inside air compartment left end and with gas bag using matching,
The gas bag is integrated with injection tube, and the filter bag frame is horizontally fixed on controller right end and adopts with dust removal assembly
With interference fit, the controller is vertically arranged to dust and gas entrance upper end and is gap-matched with filter bag frame, the dirt
Gas entrance is horizontally fixed on filter bag frame lower end.
Further, the ash exhauster is made of dust export, processor, ash bucket, and the dust export section is square
It shape structure and is vertically arranged to processor lower end and is gap-matched, the processor is conllinear with dust export axle center, institute
Ash bucket is stated to be vertically fixed on dust export upper end and match with processor use.
Further, the driving device by coupling lever, first cone tooth, second cone tooth, transmission device, dust suction pump group at,
The coupling lever is tightly attached to dust removal assembly lower end vertically and is gap-matched, and the first cone tooth is installed vertically on coupling lever
Lower end and with the second cone tooth using being meshed, the second cone tooth is conllinear with the first conical tooth shaft heart, and the transmission device is vertical
Be fixed on the second cone tooth upper end and using being flexibly connected, dust suction pump be horizontally fixed on dust removal assembly right end and with transmission
Device is using electrical connection.
Further, the dust removal assembly is made of dedusting filtering bag, the first fixed block, card, and the coupling lever section is
Rectangular configuration and be installed vertically on dedusting filtering bag bottom end and using interference fit, the dedusting filtering bag set altogether there are four and uniformly
It is installed on filter bag frame right end and welds together with the first fixed block, first fixed block sets there are two altogether and uniformly consolidates
It is scheduled on dedusting filtering bag upper and lower ends and with card using matching, the card is vertically arranged to converge air compartment lower end and with the
One fixed block is using mechanical connection.
Further, the injection tube is made of generator, electromagnetic impulse valve, bearing rod, and the generator is horizontally mounted
In electromagnetic impulse valve left end and using electrical connection, the gas bag is fixed on electromagnetic impulse valve lower end and vertically using matching
It closes, the electromagnetic impulse valve is conllinear with bearing rod axle center, the bearing rod rectangular cross-section structure and horizontal through remittance air compartment
It is internal.
Further, the gas bag by connector, fixed frame, help flow fan, pedestal to form, the electromagnetic impulse valve is pacified vertically
Loaded on upper end of joint and using interference fit, the fixed frame horizontal nest is in helping flow fan outer ring and be welded on pedestal
Together, the pedestal level is tightly attached to card left end and is gap-matched.
Further, the filter bag frame is made of the second fixed block, regulating mechanism, fixed frame, second fixed block
It sets altogether there are two and is uniformly installed on fixed frame upper and lower ends and is used with card and match, the regulating mechanism level insertion
Left end and using being flexibly connected inside fixed frame, the fixed frame sets there are two altogether and is horizontally installed to dedusting filtering bag left end simultaneously
And axle center is conllinear.
Further, the remittance air compartment is integrated with collecting mechanism.
The utility model has the beneficial effects that: a kind of coal burning dust collecting of the utility model, on ash bucket
Dust suction pump is installed, the sucking of dust can be accelerated, and increase absorption efficiency, it can be right by being equipped with fixed frame on filter bag frame
Moist dust is dried, and convenient for the collection of dust, dust enters the dust removal assembly in collecting mechanism by dust and gas entrance,
After filtering in dedusting filtering bag and filter bag frame, clean gas is just entered in remittance air compartment by injection tube, clean gas
Body helps flow fan to carry out drive bearing rod by what electromagnetic impulse valve lower end was equipped with, at this point, clean gas is just exported from net gas
It is discharged, entrained dust and particulate matter etc. are attached on dedusting filtering bag in exhaust gas, and the machinery through driving device is even
It connects under work, the processor for being located at hopper bottom is collected and periodically discharged from dust export, and work is completed.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of coal burning dust collecting of the utility model.
Fig. 2 is the schematic diagram of internal structure of the utility model collecting mechanism.
Fig. 3 is the inside detailed construction schematic diagram of the utility model collecting mechanism.
Fig. 4 is the first partial detailed construction schematic diagram in the utility model Fig. 3.
Fig. 5 is the second local detailed construction schematic diagram in the utility model Fig. 3.
In figure: upper cover plate -1, remittance air compartment -2, collecting mechanism -3, inspection door -4, bracket -5, fixed link -6, ash exhauster -
301, driving device -302, dust removal assembly -303, net gas outlet -304, injection tube -305, gas bag -306, filter bag frame -307,
Controller -308, dust and gas entrance -309, dust export -3011, processor -3012, ash bucket -3013, coupling lever -3021, first
Bore tooth -3022, the second cone tooth -3023, transmission device -3024, dust suction pump -3025, dedusting filtering bag -3031, the first fixed block -
3032, card -3033, generator -3051, electromagnetic impulse valve -3052, bearing rod -3053, connector -3061, fixed frame -3062,
Help flow fan -3063, pedestal -3064, the second fixed block -3071, regulating mechanism -3072, fixed frame -3073.
Specific embodiment
To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, Fig. 1
~Fig. 5 schematically shows the structure of the dust collecting of the utility model embodiment, below with reference to specific embodiment party
The utility model is further described in formula.
Embodiment
As Figure 1-Figure 5, the utility model provides a kind of coal burning dust collecting, and structure includes: upper cover
Plate 1, remittance air compartment 2, collecting mechanism 3, inspection door 4, bracket 5, fixed link 6, the upper cover plate 1 are vertically arranged to remittance 2 top of air compartment
And it is gap-matched, the remittance air compartment 2 is vertically fixed on 3 upper end of collecting mechanism and conllinear with 1 axle center of upper cover plate, described
Collecting mechanism 3 is installed vertically on 5 upper end of bracket and uses with remittance air compartment 2 and matches, 4 rectangular cross-section structure of inspection door
And level is tightly attached to 3 right end of collecting mechanism and is welded together, the bracket 5 be fixed on vertically converge 2 lower end of air compartment and with
Collecting mechanism 3 welds together, and the fixed link 6 sets there are four altogether and is uniformly installed on 5 left and right ends of bracket and uses spiral shell
Mother is fixed, and the bracket 5 is integrated with fixed link 6, the collecting mechanism 3 by ash exhauster 301, driving device 302,
Dust removal assembly 303, net gas export 304, injection tube 305, gas bag 306, filter bag frame 307, controller 308,309 groups of dust and gas entrance
At the ash exhauster 301 is vertically arranged to 303 lower end of dust removal assembly and uses with driving device 302 match, the drive
Dynamic device 302 is conllinear with 303 axle center of dust removal assembly, the dust removal assembly 303 be horizontally installed to 307 right end of filter bag frame and with
Using mechanical connection, the net gas exports 304 levels and is tightly attached to remittance 2 side of air compartment and welds together injection tube 305, described
Injection tube 305 is horizontal to be matched through remittance 2 inside left end of air compartment and with the use of gas bag 306, the gas bag 306 and injection tube
305 are integrated, and the filter bag frame 307 is horizontally fixed on 308 right end of controller and used with dust removal assembly 303
It is full of cooperation, the controller 308 is vertically arranged to 309 upper end of dust and gas entrance and is gap-matched with filter bag frame 307, institute
It states dust and gas entrance 309 and is horizontally fixed on 307 lower end of filter bag frame, the ash exhauster 301 is by dust export 3011, processor
3012, ash bucket 3013 forms, and 3011 rectangular cross-section structure of dust export and is vertically arranged to 3012 lower end of processor simultaneously
And be gap-matched, the processor 3012 is conllinear with 3011 axle center of dust export, and the ash bucket 3013 is vertically fixed on ash
Dirt exports 3011 upper ends and with processor 3012 using matching, and the driving device 302 bores tooth by coupling lever 3021, first
3022, the second cone tooth 3023, transmission device 3024,3025 composition of dust suction pump, the coupling lever 3021 are tightly attached to dedusting group vertically
It 303 lower end of part and is gap-matched, the first cone tooth 3022 is installed vertically on 3021 lower end of coupling lever and with second
Cone tooth 3023 is using being meshed, and the second cone tooth 3023 is conllinear with the first cone 3022 axle center of tooth, and the transmission device 3024 hangs down
It is directly fixed on 3023 upper end of the second cone tooth and uses and be flexibly connected, the dust suction pump 3025 is horizontally fixed on dust removal assembly 303
Right end and with transmission device 3024 using being electrically connected, the dust removal assembly 303 is by dedusting filtering bag 3031, the first fixed block
3032, card 3033 forms, and 3021 rectangular cross-section structure of coupling lever and is installed vertically on 3031 bottom end of dedusting filtering bag simultaneously
And using interference fit, the dedusting filtering bag 3031 sets there are four altogether and is uniformly installed on 307 right end of filter bag frame and with the
One fixed block 3032 welds together, and first fixed block 3032 sets there are two altogether and is uniformly fixed on dedusting filtering bag 3031
Lower both ends and with card 3033 using matching, the card 3033 be vertically arranged to converge 2 lower end of air compartment and with it is first solid
Block 3032 is determined using mechanical connection, the injection tube 305 is made of generator 3051, electromagnetic impulse valve 3052, bearing rod 3053,
The generator 3051 is horizontally installed to 3052 left end of electromagnetic impulse valve and using electrical connection, and the gas bag 306 is fixed vertically
In 3052 lower end of electromagnetic impulse valve and using matching, the electromagnetic impulse valve 3052 is conllinear with 3053 axle center of bearing rod, institute
State 3053 rectangular cross-section structure of bearing rod and horizontal through converging inside air compartment 2, the gas bag 306 is by connector 3061, fixed
Frame 3062, help flow fan 3063, pedestal 3064 form, the electromagnetic impulse valve 3052 be vertically arranged to 3061 upper end of connector and
Using interference fit, 3062 horizontal nest of fixed frame is in helping 3063 outer ring of flow fan and be welded on one with pedestal 3064
It rises, 3064 level of pedestal is tightly attached to 3033 left end of card and is gap-matched, and the filter bag frame 307 is consolidated by second
Determine block 3071, regulating mechanism 3072, fixed frame 3073 to form, second fixed block 3071 sets there are two altogether and is uniformly installed on
3073 upper and lower ends of fixed frame and with card 3033 using matching, the horizontal insertion fixed frame 3073 of the regulating mechanism 3072
Internal left end and using be flexibly connected, the fixed frame 3073 set altogether there are two and be horizontally installed to 3031 left end of dedusting filtering bag
And axle center is conllinear, and the remittance air compartment 2 is integrated with collecting mechanism 3.
The utility model simple structure, practical, not only dust purification is high-efficient, but also also reduces the labour of worker
Intensity and actual bodily harm:
Specifically, being equipped with dust suction pump 3025 on ash bucket 3013, the sucking of dust can be accelerated, and increases absorption effect
Rate can be dried moist dust by being equipped with fixed frame 3073 on filter bag frame 307, convenient for the collection of dust.
Specifically, dust enters the dust removal assembly 303 in collecting mechanism 3 by dust and gas entrance 309, passing through dedusting filtering bag
3031 and filter bag frame 307 in filter after, clean gas just by injection tube 305 enter converge air compartment 2 in.
Specifically, clean gas helps flow fan 3063 to carry out band dynamic bearing by what 3052 lower end of electromagnetic impulse valve was equipped with
Bar 3053, at this point, clean gas just 304 is discharged from the outlet of net gas, in exhaust gas entrained dust and particulate matter etc. according to
It is attached on dedusting filtering bag 3031, and under the mechanical connection work through driving device 302, is located at the processor of 3013 bottom of ash bucket
3012 collect and are periodically discharged from dust export 3011, complete work.
Claims (8)
1. a kind of coal burning dust collecting, structure includes: upper cover plate (1), converges air compartment (2), collecting mechanism (3), inspection
Look into door (4), bracket (5), fixed link (6), it is characterised in that:
The upper cover plate (1) is vertically arranged to remittance air compartment (2) top and is gap-matched, and the remittance air compartment (2) is vertically solid
It is scheduled on collecting mechanism (3) upper end and conllinear with upper cover plate (1) axle center, the collecting mechanism (3) is installed vertically on bracket (5)
Hold and with converge air compartment (2) using matching, inspection door (4) rectangular cross-section structure and level is tightly attached to collecting mechanism
(3) right end and weld together, the bracket (5) is fixed on to converge vertically and air compartment (2) lower end and weld with collecting mechanism (3)
Together, the fixed link (6) sets there are four altogether and is uniformly installed on bracket (5) left and right ends and adopts and is secured with nuts, institute
Bracket (5) is stated to be integrated with fixed link (6)；
The collecting mechanism (3) by ash exhauster (301), driving device (302), dust removal assembly (303), net gas outlet (304),
Injection tube (305), gas bag (306), filter bag frame (307), controller (308), dust and gas entrance (309) composition；
The ash exhauster (301) is vertically arranged to dust removal assembly (303) lower end and with driving device (302) using matching
It closes, the driving device (302) is conllinear with dust removal assembly (303) axle center, and the dust removal assembly (303) is horizontally installed to filter bag frame
Frame (307) right end and with injection tube (305) using being mechanically connected, described net gas outlet (304) level, which is tightly attached to, converges air compartment (2)
Side and weld together, the injection tube (305) it is horizontal through converge air compartment (2) internal left end and with gas bag (306)
Using matching, the gas bag (306) is integrated with injection tube (305), and the filter bag frame (307) is horizontally fixed on
Controller (308) right end and with dust removal assembly (303) using being interference fitted, the controller (308) is vertically arranged to dust and gas
It entrance (309) upper end and is gap-matched with filter bag frame (307), the dust and gas entrance (309) is horizontally fixed on filter bag
Frame (307) lower end.
2. a kind of coal burning dust collecting according to claim 1, it is characterised in that: the ash exhauster
(301) it is made of dust export (3011), processor (3012), ash bucket (3013), dust export (3011) section is square
It shape structure and is vertically arranged to processor (3012) lower end and is gap-matched, the processor (3012) and dust export
(3011) axle center is conllinear, and the ash bucket (3013) is vertically fixed on dust export (3011) upper end and adopts with processor (3012)
With matching.
3. a kind of coal burning dust collecting according to claim 1, it is characterised in that: the driving device
(302) by coupling lever (3021), the first cone tooth (3022), the second cone tooth (3023), transmission device (3024), dust suction pump (3025)
Composition, the coupling lever (3021) are tightly attached to dust removal assembly (303) lower end vertically and are gap-matched, the first cone tooth
(3022) it is installed vertically on coupling lever (3021) lower end and with the second cone tooth (3023) using being meshed, described second bores tooth
(3023) conllinear with the first cone tooth (3022) axle center, the transmission device (3024) is vertically fixed on second cone tooth (3023) upper end
And using being flexibly connected, the dust suction pump (3025) is horizontally fixed on dust removal assembly (303) right end and and transmission device
(3024) using electrical connection.
4. a kind of coal burning dust collecting according to claim 3, it is characterised in that: the dust removal assembly
(303) it is made of dedusting filtering bag (3031), the first fixed block (3032), card (3033), coupling lever (3021) section is
Rectangular configuration and be installed vertically on dedusting filtering bag (3031) bottom end and using interference fit, the dedusting filtering bag (3031) altogether
If there are four and be uniformly installed on filter bag frame (307) right end and weld together with the first fixed block (3032), described the
One fixed block (3032) sets there are two altogether and is uniformly fixed on dedusting filtering bag (3031) upper and lower ends and adopts with card (3033)
With matching, the card (3033) is vertically arranged to converge air compartment (2) lower end and uses machinery with the first fixed block (3032)
Connection.
5. a kind of coal burning dust collecting according to claim 1, it is characterised in that: the injection tube (305)
It is made of generator (3051), electromagnetic impulse valve (3052), bearing rod (3053), the generator (3051) is horizontally installed to electricity
Magnetic field impulse valve (3052) left end and using electrical connection, the gas bag (306) is fixed on electromagnetic impulse valve (3052) lower end vertically
And using matching, the electromagnetic impulse valve (3052) is conllinear with bearing rod (3053) axle center, and the bearing rod (3053) is cut
Face is rectangular configuration and level is internal through remittance air compartment (2).
6. a kind of coal burning dust collecting according to claim 5, it is characterised in that: the gas bag (306) by
Connector (3061), fixed frame (3062) help flow fan (3063), pedestal (3064) composition, and the electromagnetic impulse valve (3052) is perpendicular
Directly it is installed on connector (3061) upper end and using interference fit, fixed frame (3062) horizontal nest is in helping flow fan
(3063) outer ring and weld together with pedestal (3064), pedestal (3064) level is tightly attached to card (3033) left end simultaneously
And it is gap-matched.
7. a kind of coal burning dust collecting according to claim 1, it is characterised in that: the filter bag frame
(307) it is made of the second fixed block (3071), regulating mechanism (3072), fixed frame (3073), second fixed block (3071)
Fixed frame (3073) upper and lower ends are set there are two and be uniformly installed on altogether and are used with card (3033) matches, the adjusting
Mechanism (3072) is horizontal to be embedded in fixed frame (3073) internal left end and uses flexible connection, and the fixed frame (3073) is equipped with altogether
Two and it is horizontally installed to dedusting filtering bag (3031) left end and axle center is conllinear.
8. a kind of coal burning dust collecting according to claim 1, it is characterised in that: the remittance air compartment (2) with
Collecting mechanism (3) is integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821042847.6U CN208799884U (en) | 2018-07-03 | 2018-07-03 | A kind of coal burning dust collecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821042847.6U CN208799884U (en) | 2018-07-03 | 2018-07-03 | A kind of coal burning dust collecting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208799884U true CN208799884U (en) | 2019-04-30 |
Family
ID=66228451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821042847.6U Expired - Fee Related CN208799884U (en) | 2018-07-03 | 2018-07-03 | A kind of coal burning dust collecting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208799884U (en) |
-
2018
- 2018-07-03 CN CN201821042847.6U patent/CN208799884U/en not_active Expired - Fee Related
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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: 20190820 Address after: 122004 Goumenzi Village, Xidayingzi Town, Longcheng District, Chaoyang City, Liaoning Province Patentee after: Chaoyang Yanshanhu Power Generation Co.,Ltd. Address before: 313000 North Qiu Du, Zijinqiao Village, Balidian Town, Wuxing District, Huzhou City, Zhejiang Province Patentee before: HUZHOU ZHENFENG TRADING Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190430 |