CN105819243B - Portable bag-pack cement loading machine dust pelletizing system in bulk - Google Patents
Portable bag-pack cement loading machine dust pelletizing system in bulk Download PDFInfo
- Publication number
- CN105819243B CN105819243B CN201610322782.XA CN201610322782A CN105819243B CN 105819243 B CN105819243 B CN 105819243B CN 201610322782 A CN201610322782 A CN 201610322782A CN 105819243 B CN105819243 B CN 105819243B
- Authority
- CN
- China
- Prior art keywords
- dust
- dust shield
- side cover
- cover plate
- loading machine
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
- B65G69/181—Preventing escape of dust by means of sealed systems
- B65G69/182—Preventing escape of dust by means of sealed systems with aspiration means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Auxiliary Methods And Devices For Loading And Unloading (AREA)
Abstract
The invention discloses a kind of portable bag-pack cement loading machine dust pelletizing system in bulk, including the dust shield being located above carloader feed opening, what is be connected with dust shield is used to draw the dust exhaust apparatus of dust in dust shield, the air-supply arrangement blown into dust shield, being provided with above dust shield drives dust shield to move support along what carloader direct of travel moved linearly, the dust shield includes the side cover plate of the left and right sides, the cover lid at top and front and rear sides have flexible cover curtain, the side cover plate is flexibly connected with cover lid, connected between the side cover plate and cover curtain by flexible connecting member, the lowering or hoisting gear for driving dust shield integral elevating is installed on the mobile support.The present invention can avoid caused dust in bagged cement dropping process from escaping, and greatly improve dust collection effect.
Description
Technical field
The invention belongs to field of Environment Protection, and in particular to dust pelletizing system.
Background technology
Portable bag-pack cement loading machine in bulk improves the folded bag of bagged cement entrucking in the use of cement plant packing shop
Speed, but in taking advantage of a situation and falling folded packet procedures, the collision airborne dust of cement bag is also very big, has between entrucking chain-drive section slide carriage and car body
One drop highly, is also easy to produce dust in dropping process, cement plant fills dust and environmental improvement at chartered plane, because difficulty is larger, do not had
Have and paid attention to, filling needs artificial folded bag and packet loss at bag, working environment, which is disliked, to be omited, and dust concentration is up to tens and often stood to hectogram
Side, occupational health does not ensure, is worked for a long time in airborne dust, or even easily produces anthraco-silicosis, and cement plant and worker suffer untold misery,
And the link that cement production enterprise environmental protection now is most weak.The dress chartered plane dust shield for having Some Enterprises to use at present is most for fixation
Formula, mobile inconvenient, dust collection effect is bad.
The content of the invention
The technical problems to be solved by the invention are just to provide a kind of portable bag-pack cement loading machine dust pelletizing system in bulk,
Dust shield is moved with carloader, improve dust collection effect.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：Portable bag-pack cement loading machine in bulk removes
Dirt system, including be located at dust shield above carloader feed opening, being used for of being connected with dust shield draws dust in dust shield
Dust exhaust apparatus, the air-supply arrangement blown into dust shield, be provided with above dust shield and drive dust shield along carloader traveling side
To the mobile support of rectilinear movement, the dust shield includes the side cover plate of the left and right sides, the cover lid at top and front and rear sides tool
Flexible cover curtain, the side cover plate are flexibly connected with cover lid, connected between the side cover plate and cover curtain by flexible connecting member,
The lowering or hoisting gear for driving dust shield integral elevating is installed on the mobile support.
Preferably, the dust exhaust apparatus includes the induced-draught fan and aspiration channel being connected with deduster, the aspiration channel includes
The air draught canned paragraph fixed with deduster and the air draught telescopic section with mobile support linkage.
Preferably, the air-supply arrangement includes pressure fan and ajutage, the ajutage includes what is fixed with pressure fan
Air-supply canned paragraph and the air-supply telescopic section with mobile support linkage.
Preferably, the mobile support is provided with roller, the ceiling above transport vehicle is provided with along carloader moving direction
The rail groove coordinated with roller.
Preferably, the side cover plate is connected through the hinge with cover lid, driving two is provided between the cover lid and side cover plate
The stretching mechanism that side side cover plate opens.
Preferably, the flexible connecting member between the cover curtain and side cover plate is the canvas telescopic band of fan-like pattern.
Preferably, the cover lid includes the top plate above bottom plate and bottom plate, screw rod is provided between the bottom plate and top plate,
Screw rod both ends pass bottom plate and top plate respectively and the nut that is spirally connected, and screw rod coordinates with via clearance on bottom plate and top plate, the screw rod
Spring is provided between the bottom panel and top panel.
Preferably, the discharge port of the deduster is connected with discharging retracting device.
Preferably, the dust concentration monitor with induced-draught fan communication connection is provided with the dust shield.
Preferably, the import of the deduster is provided with temperature monitor and spark monitoring sensor.
The mobile support linkage of the technical solution adopted by the present invention, dust shield and carloader, so, dust shield is with carloader
It is movable and accordingly move, dust shield can be located above the feed opening of carloader all the time, avoid bagged cement from falling
During caused dust escape, greatly improve dust collection effect.Dust shield is driven integrally to rise in addition, being provided with mobile support
The lowering or hoisting gear of drop, to adapt to the cement transporter of different height.Meanwhile side cover plate is flexibly connected with cover lid, side cover plate and cover
Connected between curtain by flexible connecting member, therefore side cover plate, cover curtain can open laterally, increase the inner space of dust shield
Greatly, the overlay area of dust shield can also become big, avoid dust shield can not cover lid dust generating region situation occur.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and detailed description：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of dust shield (cover curtain is in deployed condition)；
Fig. 3 is the structural representation of cover lid；
Fig. 4 is the structural representation of stretching mechanism.
Embodiment
As shown in figure 1, portable bag-pack cement loading machine dust pelletizing system in bulk, including dust shield 1 and it is connected with dust shield 1
Dust exhaust apparatus 2 and air-supply arrangement 3.Bagged cement is loaded into the trunk 61 of cement transporter 6 by carloader, dust shield 1
Corresponding carloader is set.
Current portable bag-pack cement loading machine in bulk generally comprises mobile support 4, the conveying being connected with mobile support 4
Band 41, conveyer belt is obliquely installed, the trunk 61 of the feed opening face cement transporter 6 below conveyer belt, and the cover of dust shield 1 is set
Above feed opening, during entrucking, air-supply arrangement 3 is dried into dust shield 1, and dust exhaust apparatus 2 sucks cement in dust shield 1
Airborne dust.
Wherein, dust exhaust apparatus 2 includes aspiration channel, deduster 21, the induced-draught fan 22 being sequentially connected, and air-supply arrangement 3 includes sending
Blower fan 31 and ajutage.Due to carloader at work, not only in its lengthwise position along before cement transporter headstock tailstock direction
After move, while also move up and down, dust exhaust apparatus and air-supply arrangement are not easy to arrange, therefore, the present invention is set above dust shield 1
There is mobile support 4, mobile support 4 drives dust shield 1 to be moved with carloader.
Simultaneously in order to coordinate dust shield 1 to move, aspiration channel and ajutage are required to set flexible pipe structure, aspiration channel and send
Airduct links with mobile support, and flexible pipe structure can stretch in carloader moving process.Specifically, aspiration channel include with except
The air draught canned paragraph 23 and the air draught telescopic section 24 with mobile support linkage that dirt device 21 is fixed, ajutage includes solid with pressure fan 31
Fixed air-supply canned paragraph 32 and the air-supply telescopic section 33 with mobile support linkage.Air draught telescopic section 24, air-supply telescopic section 33 are
Flexible pipe structure.
Consider gather dust point, dust shield and pipeline to leak out, the selection of air draught fan delivery is more than 30000m3/ h, blast
4000pa, selection of Motor 55kw.
Wherein, the mobile support 4 is installed on the ceiling 5 in dress hired car, and ceiling 5 is along carloader moving direction
Provided with one for conveyer belt 41 by and mobile elongated slot 51, the width both sides of the elongated slot are respectively provided with a rail groove, described
Mobile support 4 is provided with the roller 42 coordinated with rail groove.So, fold packet procedures in, carloader at any time up and down and the headstock tailstock
In the moving process of direction, dust shield 1 also moves with it, greatly improves dust collection effect.It is simultaneously guarantee air-tightness, track
Integral sealing is carried out between groove and dress hired car, effective displacement of suspended hood is 7 meters.
In addition, worker is folded in packet procedures, main particle pollution scope is in transport of cement vehicle-width direction region and folded bag top region
Domain, therefore, as shown in Fig. 2 dust shield 1 include the side cover plate 11 of the dust shield including the left and right sides, top cover lid 10 with
And front and rear sides have flexible cover curtain 12, cement transporter cross direction both sides stop dust using side cover plate 11, fold bag top
Region stops dust using cover lid 10, and the cover curtain 12 of front and rear sides closes the front and rear sides of dust shield 1, and it is main to ultimately form covering
The cover of particle pollution scope sets space.The side cover plate 11 is flexibly connected with cover lid 10, is passed through between the side cover plate 11 and cover curtain 12
Flexible connecting member 13 connects, therefore the cover lid 10 that side cover plate 11, cover curtain 12 can be relatively above opens laterally, so as to increase cover
If space.
In order to adapt to moving up and down for carloader, the lifting dress for driving the integral elevating of dust shield 1 is installed on mobile support
Put, specific lowering or hoisting gear can use the driving dust shield lifting of pneumatic or electric pushrod.
Further, side cover plate 11 is connected through the hinge with cover lid 10, and driving two is provided between cover lid 10 and side cover plate 11
The stretching mechanism that side side cover plate opposing cover opens to both sides.In order that side cover plate to both sides open when, cover curtain 12 and side cover plate
Between the opening that can seal, the flexible connecting member between the cover curtain and side cover plate is the canvas telescopic band of fan-like pattern.
As shown in figure 4, stretching mechanism includes expansion link 14, first connecting rod 15, second connecting rod 16, third connecting rod 17, stretch
Bar sets one, stretches along the longitudinal direction, driving source can be cylinder or electric pushrod.First connecting rod 15, second connecting rod 16,
Third connecting rod 17 sets two groups and is hinged successively, is divided at left and right sides of expansion link, and second connecting rod or so extends and is located at straight line
In track, first connecting rod is hinged with expansion link, and third connecting rod is hinged with side cover plate, therefore, when expansion link stretches, can drive side
Cover plate deploys or shunk laterally.When side cover plate opens laterally, cover curtain also opens laterally therewith, makes the interior of dust shield
Portion space increases, and the overlay area of dust shield can also become big, avoid dust shield can not the situation of cover lid dust generating region go out
It is existing.
As shown in figure 3, the cover lid 10 includes the top plate 101 above bottom plate 102 and bottom plate, between the bottom plate and top plate
Provided with screw rod 103, screw rod both ends pass bottom plate and top plate respectively and the nut that is spirally connected, and screw rod is matched somebody with somebody with via clearance on bottom plate and top plate
Closing, the screw rod is provided with spring 104 between the bottom panel and top panel, and such bottom plate can do a certain degree of swing with respect to top plate,
The cover below dust shield, which sets space, simultaneously to change, and this is due to cement transporter stop position and inaccurate, therefore should
Dust shield 1 is allowed to do a certain degree of swing, to adapt to the different parking spot of cement transporter
Because caused dust is finished cement during entrucking, there are economic benefits, therefore dust removing dust device after collection
After collection, retracting device is connected with the discharge port of deduster, cement can re-use after recovery.Specifically, reclaim
Device can be cement package bags, and the cement of recovery is directly packed, or be an air flume, make recovery by air flume
Cement come back to front end and packed utilization.
Deduster uses sack cleaner, and the sack cleaner is mountable in the outside cemented platform between dress hired car, by
In deduster from airborne dust point farther out, its aspiration channel is longer, in order to ensure in aspiration channel not dust stratification, in aspiration channel wind speed selection exist
More than 20m/s.
In addition, being provided with the dust concentration monitor communicated to connect with induced-draught fan 22 in dust shield 1, dust concentration monitor will
The dust concentration value monitored is sent to induced-draught fan 22, and induced-draught fan heightens or reduced accordingly induced-draught fan suction according to dust concentration value
Air quantity, if concentration value is too high, suction air volume is just suitably heightened, it is appropriate to reduce suction air volume if concentration value reduces.
The import of deduster 21 is provided with temperature monitor and spark monitoring sensor, if temperature monitor and spark monitoring
Sensor monitoring is too high or have spark generation to temperature, jeopardizes deduster safe operation, just and alarm or cut-out dedusting
Device is run, and is so averted risks in time, ensures that dust-collecting bag is long-term use of.
Claims (7)
1. portable bag-pack cement loading machine dust pelletizing system in bulk, including be located at dust shield above carloader feed opening, with
What dust shield connected is used to draw the dust exhaust apparatus of dust in dust shield, the air-supply arrangement blown into dust shield, and its feature exists
In：Being provided with above dust shield drives dust shield to move support, the dust shield bag along what carloader direct of travel moved linearly
Including the side cover plate of the left and right sides, the cover lid at top and front and rear sides has flexible cover curtain, the side cover plate and the activity of cover lid
Connection, is connected between the side cover plate and cover curtain by flexible connecting member, is provided with the mobile support and is driven dust shield whole
The lowering or hoisting gear of body lifting, the mobile support are provided with roller, and the ceiling above transport vehicle is provided with along carloader moving direction
The rail groove coordinated with roller, the side cover plate are connected through the hinge with cover lid, and driving is provided between the cover lid and side cover plate
The stretching mechanism that both sides side cover plate opens, the stretching mechanism include expansion link, first connecting rod, second connecting rod third connecting rod, stretched
Contracting bar sets one, stretches along the longitudinal direction, and driving source is cylinder or electric pushrod, and first connecting rod, second connecting rod, the 3rd connect
Bar sets two groups and is hinged successively, is divided at left and right sides of expansion link, and second connecting rod or so extends and in rectilinear orbit, the
One connecting rod is hinged with expansion link, and third connecting rod is hinged with side cover plate, when expansion link stretches, drive side cover plate deploy laterally or
Shrink, the cover lid includes the top plate above bottom plate and bottom plate, and screw rod, screw rod both ends difference are provided between the bottom plate and top plate
Pass bottom plate and top plate and the nut that is spirally connected, screw rod coordinate with via clearance on bottom plate and top plate, the screw rod is in bottom plate and top plate
Between be provided with spring.
2. movable type bag-pack cement loading machine dust pelletizing system in bulk according to claim 1, it is characterised in that：The dust suction
Device includes the induced-draught fan and aspiration channel that be connecteds with deduster, the aspiration channel include with the air draught canned paragraph of deduster fixation and
With the air draught telescopic section of mobile support linkage.
3. movable type bag-pack cement loading machine dust pelletizing system in bulk according to claim 1, it is characterised in that：The air-supply
Device includes pressure fan and ajutage, and the ajutage includes the air-supply canned paragraph fixed with pressure fan and linked with mobile support
Air-supply telescopic section.
4. movable type bag-pack cement loading machine dust pelletizing system in bulk according to claim 1, it is characterised in that：The cover curtain
Flexible connecting member between side cover plate is the canvas telescopic band of fan-like pattern.
5. movable type bag-pack cement loading machine dust pelletizing system in bulk according to claim 2, it is characterised in that：The dedusting
The discharge port of device is connected with discharging retracting device.
6. movable type bag-pack cement loading machine dust pelletizing system in bulk according to claim 2, it is characterised in that：The dust suction
The dust concentration monitor with induced-draught fan communication connection is provided with cover.
7. movable type bag-pack cement loading machine dust pelletizing system in bulk according to claim 2, it is characterised in that：The dedusting
The import of device is provided with temperature monitor and spark monitoring sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610322782.XA CN105819243B (en) | 2016-05-16 | 2016-05-16 | Portable bag-pack cement loading machine dust pelletizing system in bulk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610322782.XA CN105819243B (en) | 2016-05-16 | 2016-05-16 | Portable bag-pack cement loading machine dust pelletizing system in bulk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105819243A CN105819243A (en) | 2016-08-03 |
| CN105819243B true CN105819243B (en) | 2018-02-23 |
Family
ID=56529648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610322782.XA Active CN105819243B (en) | 2016-05-16 | 2016-05-16 | Portable bag-pack cement loading machine dust pelletizing system in bulk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105819243B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107639096A (en) * | 2016-12-01 | 2018-01-30 | 中国石油化工股份有限公司 | Quick lime discharging pit dust removal method |
| CN107364743A (en) * | 2017-08-25 | 2017-11-21 | 金华申宇环保设备有限公司 | A kind of dust arrester on cement loading siding |
| CN107630280A (en) * | 2017-09-05 | 2018-01-26 | 芜湖品度电子科技有限公司 | Novel textile machine dust suction subassembly |
| CN108466850A (en) * | 2018-04-23 | 2018-08-31 | 王柯桢 | A kind of movable type cement dust collection loading apparatus |
| CN108840128A (en) * | 2018-07-25 | 2018-11-20 | 福建联创机械设备有限公司 | A kind of fully automatic environmental-friendly cement truck-loading facilities |
| EP3892574B1 (en) * | 2020-04-08 | 2023-09-06 | BAUER Resources GmbH | Cover hood and method for filling |
| CN113666141B (en) * | 2021-08-30 | 2023-09-01 | 三一汽车制造有限公司 | Smoke protection device and method |
| CN114476733A (en) * | 2022-02-16 | 2022-05-13 | 陕西精益化工有限公司 | Slag bin dust collecting equipment |
| CN114803583B (en) * | 2022-06-28 | 2022-09-09 | 新合海机械(江苏)有限公司 | Dust collecting device for bagged cement truck loading |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3827578A (en) * | 1972-09-25 | 1974-08-06 | R Hough | Rotary grain distribution system |
| US5191909A (en) * | 1991-04-03 | 1993-03-09 | Griffin Environmental Co., Inc. | Transit mix truck dust hood assembly |
| CN2573440Y (en) * | 2002-08-29 | 2003-09-17 | 王国培 | Tail sealing device of belt conveyer |
| CN105523398A (en) * | 2016-01-15 | 2016-04-27 | 高玉宗 | Truck loading dust collecting system |
| CN205602752U (en) * | 2016-05-16 | 2016-09-28 | 金华华东环保设备有限公司 | Portable bagged water mud carloader dust pelletizing system in bulk |
-
2016
- 2016-05-16 CN CN201610322782.XA patent/CN105819243B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3827578A (en) * | 1972-09-25 | 1974-08-06 | R Hough | Rotary grain distribution system |
| US5191909A (en) * | 1991-04-03 | 1993-03-09 | Griffin Environmental Co., Inc. | Transit mix truck dust hood assembly |
| CN2573440Y (en) * | 2002-08-29 | 2003-09-17 | 王国培 | Tail sealing device of belt conveyer |
| CN105523398A (en) * | 2016-01-15 | 2016-04-27 | 高玉宗 | Truck loading dust collecting system |
| CN205602752U (en) * | 2016-05-16 | 2016-09-28 | 金华华东环保设备有限公司 | Portable bagged water mud carloader dust pelletizing system in bulk |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105819243A (en) | 2016-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105819243B (en) | Portable bag-pack cement loading machine dust pelletizing system in bulk | |
| CN104261152B (en) | A kind of dust collecting for bagged cement entrucking link | |
| CN205602739U (en) | Portable suction hood of bagged water mud carloader | |
| CN205602752U (en) | Portable bagged water mud carloader dust pelletizing system in bulk | |
| CN106759057B (en) | Blowing and drawing type rail cleaning vehicle, method and application | |
| CN106115309A (en) | A kind of bag-pack cement loading machine dust arrester installation | |
| CN107364743A (en) | A kind of dust arrester on cement loading siding | |
| CN105523398A (en) | Truck loading dust collecting system | |
| CN102966367A (en) | Roadway construction equipment and dust removing device thereof | |
| CN103213568A (en) | Movable de-dusting system at bottom of metro vehicle and method of de-dusting system | |
| CN111071209B (en) | Carriage clout cleans collecting device | |
| CN209226193U (en) | A kind of dust-extraction unit for cement loading siding | |
| CN207030508U (en) | A kind of bag of cement carloader dust pelletizing system | |
| CN205854662U (en) | A kind of packed water mud drum clearing apparatus | |
| CN202784910U (en) | Desulfurization ash loading device used for long-large tank truck | |
| CN205151250U (en) | Bagged water mud carloader dust arrester installation | |
| CN2201993Y (en) | Moveable and dust removing ventilating apparatus | |
| US9388692B2 (en) | Dust collection system for a machine | |
| CN203002728U (en) | Semi-extensible flue gas gathering cover | |
| CN105000400A (en) | Novel dust collection device of bagged powder material automatic car loader | |
| CN210456712U (en) | Bagged cement dress lane dust collector | |
| CN104907304B (en) | Dust collecting device on bagged cement truck loading site | |
| CN205471774U (en) | Three stations first dust suppression device that stretches out and draws back | |
| CN206599293U (en) | Cement package bags carloader moves dust collecting system | |
| CN204980462U (en) | Novel powder material automatic loading machine removes dust in bags device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 818 Dayan Road, Linjiang Industrial Park, Wucheng District, Jinhua City, Zhejiang Province Patentee after: JINHUA HUADONG ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd. Address before: 321016 Zhejiang Province, Jinhua City Industrial Park, Xinhua Street No. 556 Jinhua East China Environmental Protection Equipment Co. Patentee before: JINHUA HUADONG ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Dust removal system of mobile bulk bagged cement loader Effective date of registration: 20211225 Granted publication date: 20180223 Pledgee: Agricultural Bank of China Limited by Share Ltd. Jinhua Economic Development Zone Branch Pledgor: JINHUA HUADONG ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd. Registration number: Y2021330002641 |
|
| 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: 20221213 Granted publication date: 20180223 Pledgee: Agricultural Bank of China Limited by Share Ltd. Jinhua Economic Development Zone Branch Pledgor: JINHUA HUADONG ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd. Registration number: Y2021330002641 |