CN108771923B - Automatic jetting bag type dust collector - Google Patents
Automatic jetting bag type dust collector Download PDFInfo
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- CN108771923B CN108771923B CN201810713386.9A CN201810713386A CN108771923B CN 108771923 B CN108771923 B CN 108771923B CN 201810713386 A CN201810713386 A CN 201810713386A CN 108771923 B CN108771923 B CN 108771923B
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- wind wheel
- gas
- sleeve
- box body
- air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
Abstract
An automatic blowing bag type dust collector effectively solves the problems of low dust collection efficiency, influence on working progress and the like caused by faults caused by electronic control failure in the prior art; the pulse injection device comprises a gas pipe arranged in the upper box body, the end part of the gas pipe is connected with a gas storage bag positioned on the outer wall of the upper box body, the inner end of the gas pipe is provided with a gas injection pipe, the gas injection pipe is provided with a pulse valve, and when the filtering effect of the filter bag cannot reach a set value, the air inlet is blocked by the blocking device; the invention has the advantages of ingenious design and reasonable structure, replaces an electronic structure with a mechanical control device, has more accurate control, does not have electronic faults, and has longer service life, thereby reducing the shutdown time and improving the working efficiency.
Description
Technical Field
The invention relates to the technical field of environment-friendly instruments, in particular to an automatic blowing bag type dust collector.
Background
The principle of the pulse bag type dust collector is that compressed air is used as power, the compressed air instantly sprayed by a spraying mechanism is utilized, and air which is several times of the sprayed air is induced to enter a filter bag at a high speed through a Venturi tube, so that the filter bag generates sharp expansion and impact vibration from a top filter opening to the bottom, and a strong dust removing and accumulating effect is generated. The dust remover has high dust removing strength, and can allow the adoption of higher filtering wind speed, thereby becoming the most widely used dust removing and dust removing mode at present in China.
The traditional bag type dust collector adopts a sensor to control the opening of a pulse valve, and the sensor can be influenced in multiple aspects, so that the sensor sends a signal and the actual condition is in and out, and the bag type dust collector controlled mechanically needs to be designed.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the invention aims to provide an automatic blowing bag type dust collector, which effectively solves the problems of low dust collection efficiency, influence on working progress and the like caused by faults caused by electronic control failure in the prior art.
The technical scheme for solving the problem is that the automatic blowing bag type dust collector comprises a plurality of dust removing boxes arranged side by side, each dust removing box comprises an upper box body, a middle box body and an ash bucket, a pulse blowing device is arranged in the upper box body, a filter bag is arranged in the middle box body, the dust removing boxes are provided with an air inlet and an air outlet which are communicated, a truss is arranged in the middle box body, the filter bag is fixed on the truss, a rotating wind wheel is arranged above a mouth of the filter bag and is fixed on the truss through a support plate, the wind wheel is connected on the support plate in a rotating mode, a sleeve which is fixed on the truss in a rotating mode is arranged outside the wind wheel, the sleeve is connected and fixed on the truss, the driving motor drives the sleeve to rotate at a constant speed, the wind wheel is in smooth contact with the sleeve, the rotating speed of the wind wheel is only determined by the wind speed of the mouth of the, at the moment, the pulse injection device is started, the pulse injection device comprises a gas pipe arranged in the upper box body, the end part of the gas pipe is connected with a gas storage bag positioned on the outer wall of the upper box body, a gas injection pipe is arranged at the inner end of the gas pipe, a pulse valve is arranged on the gas injection pipe, when the filtering effect of the filter bag cannot reach a set value, the wind wheel always extends out of the upper end of the sleeve, a plugging device is arranged in the middle box body, and at the moment, the wind wheel controls the plugging.
The invention has the advantages of ingenious design and reasonable structure, replaces an electronic structure with a mechanical control device, has more accurate control, does not have electronic faults, and has longer service life, thereby reducing the shutdown time and improving the working efficiency.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a top view of fig. 1 of the present invention.
FIG. 3 is a schematic view of a single dust removal box of the present invention.
Fig. 4 is an enlarged sectional view of a portion a in fig. 3 (a state in which the pulse blowing device normally removes dust) according to the present invention.
Figure 5 is a schematic view of the configuration of the occluding device of the present invention.
Fig. 6 is a schematic cross-sectional view of a sleeve according to the present invention.
Figure 7 is a schematic cross-sectional view of a wind wheel according to the invention.
Fig. 8 is a schematic sectional view of the connecting head of the present invention.
FIG. 9 is a schematic cross-sectional view of an air faucet of the present invention.
FIG. 10 is a diagram showing the pulse blowing device of the present invention in a state of blowing ash.
FIG. 11 is a schematic cross-sectional view of B-B of FIG. 10 in accordance with the present invention.
Fig. 12 is an enlarged schematic view of portion C of fig. 6 of the present invention.
Detailed Description
The following description of the present invention will be made in further detail with reference to the accompanying drawings 1 to 12.
As can be seen from fig. 1 to 12, an automatic blowing bag type dust collector comprises a plurality of dust collection boxes 1 arranged side by side, the plurality of dust collection boxes 1 are provided with an air inlet 7 and an air outlet 8 which are communicated, dust-containing gas is shunted by the air inlet 7 and enters each dust collection box 1 for filtration, and then clean gas reaching the standard is discharged from the uniform air outlet 8, each dust collection box 1 comprises an upper box body 2, a middle box body 3 and a dust hopper 4, a pulse blowing device 5 is arranged in the upper box body 2, a filter bag 6 is arranged in the middle box body 3, a truss 9 is arranged in the middle box body 3, the filter bag 6 is fixed on the truss 9, a rotating wind wheel 10 is arranged above the opening of the filter bag 6, wind filtered by the filter bag 6 drives the wind wheel 10 to rotate, the rotating speed of the wind wheel 10 is determined by the air output of the filter bag 6, the wind wheel 10 is fixed on the truss 9 through a support plate 11, the wind wheel 10 is rotatably connected on the, the sleeve 12 is connected with a driving motor 13 fixed on the truss 9, the driving motor 13 drives the sleeve 12 to rotate at a constant speed, when the filter bag 6 needs to be replaced, the rotating speed of the wind wheel 10 is set as the rotating speed of the sleeve 12, the wind wheel 10 is in smooth contact with the sleeve 12, the rotating speed of the wind wheel 10 is only determined by the wind speed of the mouth of the filter bag 6, when the rotating speed of the wind wheel 10 is greater than that of the sleeve 12 (namely the filter bag 6 is normally filtered), blowing is not needed, the wind wheel 10 is always positioned in the sleeve 12, when the rotating speed of the wind wheel 10 is less than that of the sleeve 12 (namely the filter bag 6 needs to be blown), the upper end of the wind wheel 10 extends out of the sleeve 12, at the moment, the pulse blowing device 5 is started to blow the filter bag 6, the pulse blowing device 5 comprises a gas pipe 14 arranged in the upper box 2, the end, when the pulse blowing device 5 works, stored gas in the gas storage bag 15 enters the gas injection pipe 16 through the gas pipe 14, the gas injection pipe 16 is in butt joint with the filter bag 6, so that the filter bag 6 is blown, when the filtering effect of the filter bag 6 still cannot reach a set value after blowing, the wind wheel 10 always extends out of the upper end of the sleeve 12, the plugging device 18 is arranged in the middle box body 3, and at the moment, the wind wheel 10 controls the plugging device 18 to plug the air inlet 7, so that the filter bag 6 is replaced.
An ash discharge valve 19 is arranged below the ash bucket 4, and when the ash collected in the ash bucket 4 is excessive, the ash discharge valve 19 is opened to discharge the ash in the ash bucket 4.
The sleeve 12 is fixed on the truss 9 through a bearing 20, the outer ring of the bearing 20 is fixed on the truss 9, the inner ring of the bearing 20 is fixed with the sleeve 12, and the sleeve 12 is connected with the truss 9 in a sealing way.
Jet-propelled pipe 16 including fixing the connector 21 on gas-supply pipe 14, the connector 21 outside is connected with air cock 22, pulse valve 17 is fixed on air cock 22, connector 21 in be equipped with the cavity 23 that communicates gas-supply pipe 14, the connector 21 outside is equipped with the gas pocket 24 of intercommunication cavity 23, connector 25 has been seted up to air cock 22 upper end, connector 25 inner wall and the sealed cooperation of connector 21 outer wall rotation, be equipped with the air flue 26 with connector 25 lateral wall intercommunication in the air cock 22, thereby air cock 22 rotates back air flue 26 and makes air flue 26 and gas-supply pipe 14 intercommunication with the butt joint of gas pocket 24, pulse valve 17 controls the switching of air flue 26.
The outer side of the connector 21 is provided with a first spiral groove 27, a bolt 28 inserted into the first spiral groove 27 is arranged in the connecting port 25, and the bolt 28 slides in the first spiral groove 27 to enable the air faucet 22 to rotate and move up and down on the connector 21.
Supporting plate 11 on be fixed with revolving cylinder 29, be fixed with first gear 30 on revolving cylinder 29, air cock 22 is equipped with ring gear 31 outward, ring gear 31 and the meshing of first gear 30, revolving cylinder 29 rotates and drives air cock 22 and rotate for air cock 22 rotates and reciprocates on connector 21.
A switch 32 for controlling the opening of the rotary cylinder 29 is arranged below the supporting plate 11, the switch 32 is positioned right above the wind wheel 10, when the wind wheel 10 moves upwards, the wind wheel 10 touches the switch 32, the rotary cylinder 29 starts to rotate, and the pulse blowing device 5 is operated to work.
The supporting plate 11 is provided with a control valve 33 positioned below the air faucet 22, when the air faucet 22 contacts the control valve 33, the control valve 33 controls the pulse valve 17 to be opened, and the pulse valve 17 is opened to blow the filter bag 6 because the air storage bag 15 is communicated with the air passage 26 at the moment.
The sleeve 12 is internally provided with a second spiral groove 34, the outer side of the wind wheel 10 is provided with a sliding block 35 inserted into the second spiral groove 34, the second spiral groove 34 has two circles, a channel 36 is arranged between the two circles of second spiral grooves 34, when the rotating speed of the wind wheel 10 is greater than that of the sleeve 12, the sliding block 35 moves downwards along the second spiral groove 34, the wind wheel 10 moves downwards at the moment, when the wind wheel moves downwards to the bottommost part, the sliding block 35 enters the channel 36 communicated with the second spiral groove 34 and enters the second spiral groove 34 at the upper side from the second spiral groove 34 at the lower side through the channel 36, so that continuous downward movement can be realized, namely, the wind wheel 10 can continuously rotate in the sleeve 12, when the rotating speed of the wind wheel 10 is less than that of the sleeve 12, the sliding block 35 moves upwards along the second spiral groove 34, at the moment, the wind wheel 10.
A spring 37 is arranged below the wind wheel 10, the spring 37 can assist the wind wheel 10 to move in the channel 36, and the elasticity of the spring 37 cannot influence the rotation of the wind wheel 10 in the sleeve 12.
The end part of the channel 36 is provided with a check valve 38, the slide block 35 can only enter the channel 36 from the second spiral groove 34 at the lower side and enter the second spiral groove 34 at the upper side from the channel 36, the check valve 38 comprises a stop lever 39 rotatably arranged at one side of the channel 36, the outer end of the stop lever 39 is connected with a pin 41 through a tension spring 40, and the tension spring 40 pulls the stop lever 39 to close the opening of the channel 36; when the slide block 35 enters the channel 36 from the second spiral groove 34 on the lower side or enters the second spiral groove 34 on the upper side from the channel 36, the slide block 35 pushes the stop lever 39 to rotate, so that the opening of the channel 36 is opened, the slide block 35 enters the channel 36, the stop lever 39 is reset by the tension spring 40, and when the direction is reversed, the pin 41 at the end part of the stop lever 39 blocks the stop lever 39, so that the push opening cannot be opened, and the slide block 35 cannot reversely enter the channel 36.
The plugging device 18 comprises a rotating shaft 42 which is rotatably fixed on the truss 9, a cylindrical plug 43 is fixed at the bottom of the rotating shaft 42, the plug 43 is positioned on the inner side of the air inlet 7, a through hole 44 is formed in the plug 43, the plug 43 is in sealing fit with the air inlet 7 and still in sealing fit after rotation, when the filter is normally filtered, the through hole 44 is communicated with the air inlet 7, dust-containing gas enters the dust removal box 1, when the plug 43 rotates for a certain angle, the through hole 44 is not communicated with the air inlet 7, the plug 43 blocks the air inlet 7, and the dust-containing gas cannot enter the dust removal box 1, an alarm can be arranged at the air inlet 7, when the air inlet 7 is plugged, the alarm is given to; the upper end of the rotating shaft 42 is fixed with a second gear 45, the second gear 45 is meshed with a rotating disc 46 which is rotatably fixed on the truss 9, a plurality of shifting blocks 47 are uniformly distributed on the circumference of the lower end of the rotating disc 46, a shifting lever 48 is arranged on the upper portion of the outer wall of the wind wheel 10, when the wind wheel 10 is continuously located at the upper end of the sleeve 12 and cannot fall back, the shifting lever 48 continuously shifts the shifting blocks 47 to drive the rotating disc 46 to rotate, a rotary spring is arranged on the rotating shaft 42, so that the air inlet 7 is blocked by the plug 43, and after the filter bag 6 is replaced, the.
When the invention is used, the water-saving agent is added,
dirty gas is filtered by filter bag 6 in getting into dust removal case 1 by air intake 7, discharge by air outlet 8 after filtering, it is too many when adnexed dust on filter bag 6, when the filter effect of filter bag 6 is influenced seriously, thereby wind wheel 10 can be automatic rises start pulse jetting device 5 and spray to filter bag 6, filter bag 6 carries out normal filtration after the spraying, when filter bag 6 still can not reach the ideal effect after the spraying, start plugging device 18, with the shutoff of air intake 7 of this dust removal case 1, thereby change filter bag 6.
The rotational speed of wind wheel 10 only is relevant with the amount of wind of 6 mouths of filter bag, the filter effect of filter bag 6 influences the rotational speed of wind wheel 10 promptly, and then control pulse injection device 5 and plugging device 18's operation, when 6 filter effects of filter bag are not enough, the rotational speed of wind wheel 10 reduces, pulse injection device 5 begins to operate, the jetting is after, 6 filter effects of filter bag reach standard, the rotational speed of wind wheel 10 rises again, wind wheel 10 falls back, break away from switch 32, revolving cylinder 29 resets, it rotates and rises on connector 21 to drive air cock 22, thereby make air flue 26 and gas pocket 24 break away from the intercommunication, gas storage package 15 does not supply air, 6 filter effects of filter bag still do not reach standard after the jetting, plugging device 18 moves, seal up air intake 7, thereby conveniently change filter bag 6.
Compared with the prior art, the invention has the following beneficial effects:
1) a mechanical control system is adopted, so that the influence on the dust removal efficiency caused by poor control after the sensor is damaged when the sensor is adopted is avoided;
2) the mechanical control structure is not easy to damage, and the service life of the control system can be prolonged;
3) a plurality of dust removal casees separately filter, and when single dust removal case was changed the filter bag, all the other dust removal casees still can filter, do not hinder operating time, can not reduce filtration efficiency.
The invention has the advantages of ingenious design and reasonable structure, replaces an electronic structure with a mechanical control device, has more accurate control, does not have electronic faults, and has longer service life, thereby reducing the shutdown time and improving the working efficiency.
Claims (10)
1. An automatic-blowing bag type dust collector comprises a plurality of dust collection boxes (1) arranged side by side, each dust collection box (1) comprises an upper box body (2), a middle box body (3) and an ash bucket (4), a pulse blowing device (5) is arranged in each upper box body (2), a filter bag (6) is arranged in each middle box body (3), the dust collection boxes (1) are provided with an air inlet (7) and an air outlet (8) which are communicated, the automatic-blowing bag type dust collector is characterized in that a truss (9) is arranged in each middle box body (3), the filter bags (6) are fixed on the truss (9), a rotating wind wheel (10) is arranged above the opening of each filter bag (6), the wind wheel (10) is fixed on the truss (9) through a support plate (11), the wind wheel (10) is rotatably connected on the support plate (11), a sleeve (12) rotatably fixed on the truss (9) is arranged outside the wind wheel (10), and the sleeve (12) is connected with, the driving motor (13) drives the sleeve (12) to rotate at a constant speed, the wind wheel (10) is in smooth contact with the sleeve (12), the rotating speed of the wind wheel (10) is only determined by the wind speed at the opening of the filter bag (6), when the rotating speed of the wind wheel (10) is greater than that of the sleeve (12), the wind wheel (10) is always positioned inside the sleeve (12), when the rotating speed of the wind wheel (10) is less than that of the sleeve (12), the upper end of the wind wheel (10) extends out of the sleeve (12), at the moment, the pulse blowing device (5) is started, the pulse blowing device (5) comprises a gas pipe (14) arranged in the upper box body (2), the end part of the gas pipe (14) is connected with a gas storage bag (15) positioned on the outer wall of the upper box body (2), the inner end of the gas pipe (14) is provided with a gas ejector pipe (16), the gas ejector pipe (16) is provided with a pulse, a plugging device (18) is arranged in the middle box body (3), and at the moment, the wind wheel (10) controls the plugging device (18) to plug the air inlet (7).
2. The automatic blowing bag type dust collector as claimed in claim 1, wherein the air blowing pipe (16) comprises a connector (21) fixed on the air pipe (14), an air tap (22) is connected to the outer side of the connector (21), and the pulse valve (17) is fixed on the air tap (22).
3. The automatic-blowing bag type dust collector as claimed in claim 2, wherein a cavity (23) communicated with the gas pipe (14) is arranged in the connector (21), a gas hole (24) communicated with the cavity (23) is formed in the outer side of the connector (21), a connector (25) is formed in the upper end of the gas nozzle (22), the inner wall of the connector (25) is in rotary sealing fit with the outer wall of the connector (21), a gas passage (26) communicated with the side wall of the connector (25) is formed in the gas nozzle (22), the gas passage (26) is in butt joint with the gas hole (24) after the gas nozzle (22) rotates, so that the gas passage (26) is communicated with the gas pipe (14), and the pulse valve (17) controls the opening and closing of the gas passage (26).
4. The automatic blowing bag filter according to claim 3, wherein a first spiral groove (27) is formed on the outer side of the connecting head (21), and a pin (28) inserted into the first spiral groove (27) is formed in the connecting port (25) to form a structure for rotatably connecting the connecting head (21) and the air faucet (22).
5. The automatic blowing bag type dust collector of claim 2, wherein a rotary cylinder (29) is fixed on the supporting plate (11), a first gear (30) is fixed on the rotary cylinder (29), a gear ring (31) is arranged outside the air nozzle (22), and the gear ring (31) is engaged with the first gear (30) to form a structure that the rotary cylinder (29) controls the air nozzle (22) to be rotatably connected to the connecting head (21).
6. The automatic blowing bag collector as claimed in claim 1, wherein a switch (32) for controlling the opening of the rotary cylinder (29) is provided under the supporting plate (11), and the switch (32) is provided directly above the wind wheel (10).
7. The automatic blowing bag collector according to claim 1, wherein a second spiral groove (34) is provided in the sleeve (12), a slider (35) inserted into the second spiral groove (34) is provided outside the wind wheel (10), the second spiral groove (34) has two circles, a channel (36) is provided between the two circles of second spiral grooves (34), when the rotation speed of the wind wheel (10) is greater than that of the sleeve (12), the wind wheel (10) moves downwards under the action of the second spiral groove (34), when the wind wheel moves downwards to the bottommost part, the slider (35) enters the upper second spiral groove (34) from the lower second spiral groove (34) through the channel (36) and further moves downwards continuously, when the rotation speed of the wind wheel (10) is less than that of the sleeve (12), the wind wheel (10) moves upwards under the action of the second spiral groove (34), and when the wind wheel (10) reaches the top, the switch (32) is touched, the rotary cylinder (29) starts to rotate.
8. The automatic blowing bag collector as claimed in claim 1, wherein a spring (37) is provided under the wind wheel (10), and the elasticity of the spring (37) does not affect the rotation of the wind wheel (10) in the sleeve (12).
9. The automatic blowing bag type dust collector of claim 7, wherein the end of the channel (36) is provided with a one-way valve (38), the one-way valve (38) comprises a stop lever (39) rotatably arranged on one side of the channel (36), the outer end of the stop lever (39) is connected with a pin (41) through a tension spring (40), and the tension spring (40) pulls the stop lever (39) to close the opening of the channel (36).
10. The automatic blowing bag type dust collector of claim 1, wherein the plugging device (18) comprises a rotating shaft (42) rotatably fixed on the truss (9), a cylindrical plug (43) is fixed at the bottom of the rotating shaft (42), the plug (43) is positioned at the inner side of the air inlet (7), a through hole (44) is formed in the plug (43), and after the plug (43) rotates, the air inlet (7) is plugged by the plug (43); a second gear (45) is fixed at the upper end of the rotating shaft (42), the second gear (45) is meshed with a rotating disc (46) which is rotatably fixed on the truss (9), a plurality of shifting blocks (47) are uniformly distributed on the circumference of the lower end of the rotating disc (46), a shifting rod (48) is arranged on the upper portion of the outer wall of the wind wheel (10), the shifting block (47) is shifted by the shifting rod (48) to drive the rotating disc (46) to rotate, and a rotary spring is arranged on the rotating shaft (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810713386.9A CN108771923B (en) | 2018-06-29 | 2018-06-29 | Automatic jetting bag type dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810713386.9A CN108771923B (en) | 2018-06-29 | 2018-06-29 | Automatic jetting bag type dust collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108771923A CN108771923A (en) | 2018-11-09 |
| CN108771923B true CN108771923B (en) | 2020-09-11 |
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ID=64031025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810713386.9A Active CN108771923B (en) | 2018-06-29 | 2018-06-29 | Automatic jetting bag type dust collector |
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| Country | Link |
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| CN (1) | CN108771923B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113457305A (en) * | 2021-06-03 | 2021-10-01 | 杭州旭颜科技有限公司 | Filter equipment is used in processing of computer parts casing blowing |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0657284B2 (en) * | 1990-12-17 | 1994-08-03 | 株式会社パック・コーポレーション | High speed dust collector |
| JP3755010B2 (en) * | 2003-05-20 | 2006-03-15 | 株式会社ダイエープロジェクト | Air purifier |
| CN201279418Y (en) * | 2008-10-06 | 2009-07-29 | 王松尧 | Multiplex pulse air-flow mechanical automatic control box |
| CN105525968B (en) * | 2015-12-09 | 2018-05-22 | 常州科研试制中心有限公司 | Emission-control equipment |
| CN106823598A (en) * | 2016-12-23 | 2017-06-13 | 易能环境技术有限公司 | One kind is straight-through to flow pulse bag type dust collector |
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2018
- 2018-06-29 CN CN201810713386.9A patent/CN108771923B/en active Active
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| CN108771923A (en) | 2018-11-09 |
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Effective date of registration: 20200817 Address after: 410000 11 / F, building A4, huanchuang enterprise Plaza, 2450 Yuelu West Avenue, Yuelu District, Changsha City, Hunan Province Applicant after: HUNAN JIUJIU INTELLIGENT ENVIRONMENTAL PROTECTION Co.,Ltd. Address before: 450000 Zhengzhou University of Light Industry, 5 Dongfeng Road, Jinshui District, Zhengzhou, Henan Applicant before: Jin Rui |
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Denomination of invention: A bag filter with automatic injection Effective date of registration: 20210629 Granted publication date: 20200911 Pledgee: Bank of Changsha Limited by Share Ltd. science and Technology Branch Pledgor: HUNAN JIUJIU INTELLIGENT ENVIRONMENTAL PROTECTION Co.,Ltd. Registration number: Y2021980005456 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220222 Granted publication date: 20200911 Pledgee: Bank of Changsha Limited by Share Ltd. science and Technology Branch Pledgor: HUNAN JIUJIU INTELLIGENT ENVIRONMENTAL PROTECTION CO.,LTD. Registration number: Y2021980005456 |