CN208293096U - For the sealing exhaust fume collecting hood of Winning cell and with its electrolysis installation - Google Patents
For the sealing exhaust fume collecting hood of Winning cell and with its electrolysis installation Download PDFInfo
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- CN208293096U CN208293096U CN201820547516.1U CN201820547516U CN208293096U CN 208293096 U CN208293096 U CN 208293096U CN 201820547516 U CN201820547516 U CN 201820547516U CN 208293096 U CN208293096 U CN 208293096U
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- China
- Prior art keywords
- seal closure
- winning cell
- fume collecting
- exhaust fume
- gathering mask
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The utility model discloses a kind of sealing exhaust fume collecting hoods for Winning cell and the electrolysis with it to equip, and sealing exhaust fume collecting hood includes: seal closure, and the seal closure is suitable for for the Winning cell being located at interior；Gas gathering mask, the gas gathering mask is set in the seal closure and is provide with the discharge portion of the Winning cell, and static pressure chamber is limited between the gas gathering mask and the seal closure and the gas gathering mask is equipped with the multiple air inlets for being connected to the inner space of the gas gathering mask with the static pressure chamber；Exhaust column, the exhaust column are connected on the seal closure and are connected to static pressure chamber.Have many advantages, such as to collect that cigarette effect is good, weight is carried easily according to the sealing exhaust fume collecting hood for Winning cell of the utility model embodiment.
Description
Technical field
The utility model relates to metallurgical technology fields, and in particular, to a kind of sealing exhaust fume collecting hood and tool for Winning cell
There is its electrolysis installation.
Background technique
In metallurgy of copper, a large amount of acid mist can be generated in the production process of electro deposited copper, and when the concentration of copper ion is lower
The arsenic hydride of severe toxicity can be also generated, is such as collected not in time, serious harm will be generated to the health of worker.
Winning cell in the related technology seals gas gathering mask, and one is be placed in several Winning cells using a huge petticoat pipe
Top gas collection, exhausting effect is poor, and petticoat pipe carries large labor intensity.Another kind is that the single layer that gas collection uses above single Winning cell is close
Smoke seal cover, electro deposited copper acid mist are only extracted by the exhaust column that single layer seals one side of petticoat pipe, and collection cigarette effect is poor, easily leaks out
The case where.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model mentions
A kind of sealing exhaust fume collecting hood for Winning cell out, the sealing exhaust fume collecting hood for Winning cell, which can be collected in electrolytic deposition process, to be generated
Flue gas, collection cigarette effect it is good.
In addition, the utility model also proposed a kind of electrolysis installation with the above-mentioned sealing exhaust fume collecting hood for Winning cell.
It include: seal closure according to the sealing exhaust fume collecting hood for Winning cell that the utility model first aspect embodiment proposes,
In the seal closure is suitable for for the Winning cell being located at；Gas gathering mask, the gas gathering mask are set in the seal closure and are provide with institute
The discharge portion of Winning cell is stated, static pressure chamber is limited between the gas gathering mask and the seal closure and the gas gathering mask is equipped with institute
State multiple air inlets that the inner space of gas gathering mask is connected to the static pressure chamber；Exhaust column, the exhaust column are connected to described close
It is connected on sealing cover and with static pressure chamber.
According to the sealing exhaust fume collecting hood for Winning cell of the utility model embodiment, with collection cigarette effect, good, weight is removed easily
The advantages that fortune.
In addition, can also be had according to the sealing exhaust fume collecting hood for Winning cell of the utility model above-described embodiment following attached
The technical characteristic added:
One embodiment according to the present utility model, multiple air inlets are arranged on the roof of the gas gathering mask in more
Column, each column air inlet is arranged along the length direction of the gas gathering mask and multiple row air inlet is between length direction of the gas gathering mask etc.
Away from distribution.
One embodiment according to the present utility model, it is described in the plane of length direction for being orthogonal to the seal closure
The orthographic projection of the roof of seal closure is arch.
One embodiment according to the present utility model, the exhaust column be connected to the seal closure along its length
On the side wall of one end.
One embodiment according to the present utility model, the static pressure is intracavitary to be equipped with multiple floors, each floor difference
It is connected with the seal closure and the gas gathering mask.
One embodiment according to the present utility model, multiple floors include: longitudinal floor, and the longitudinal direction floor is along institute
The length direction for stating seal closure extends；Multiple first is horizontal ribbed, multiple described first horizontal ribbed width in the seal closure
It spends on direction and is located at the side of longitudinal floor, each described first horizontal ribbed width direction along the seal closure extends
And multiple described first horizontal ribbed length direction intervals along the seal closure are arranged, each described first horizontal ribbed and institute
It states and is spaced setting between longitudinal floor；Multiple second is horizontal ribbed, multiple described second horizontal ribbed width in the seal closure
It spends on direction and is located at the other side of longitudinal floor, each described second horizontal ribbed width direction along the seal closure is prolonged
Stretch and multiple described second horizontal ribbed length direction intervals along the seal closure be arranged, each described second it is horizontal ribbed with
Setting is spaced between the longitudinal direction floor.
Pressure control in it is -200 by blower by one embodiment according to the present utility model, the air draft pipe
To -50Pa.
One embodiment according to the present utility model, the seal closure are connected and are integrated with the gas gathering mask.
One embodiment according to the present utility model, the seal closure and the gas gathering mask are fiber glass resin flame retardant type
Material and with a thickness of 5-15mm.
One embodiment according to the present utility model, the seal closure have multiple supporting legs, and multiple supporting legs are supported on
The lower section of the seal closure.
The both ends of the surface of one embodiment according to the present utility model, the seal closure are equipped with recessed handle.
It include: Winning cell according to the electrolysis installation that the utility model second aspect embodiment proposes, the Winning cell has
Smoke evacuation part；The above-mentioned sealing exhaust fume collecting hood for Winning cell.
One embodiment according to the present utility model, the Winning cell be it is multiple, the gas gathering mask is provide with multiple electricity
The discharge portion of product slot；Or it is multiple, multiple sealing exhaust fume collecting hoods that the Winning cell, which is multiple and described sealing exhaust fume collecting hood,
Gas gathering mask is provide with the discharge portion of multiple Winning cells correspondingly.The additional aspect and advantage of the utility model will be under
It gives out, partially will become apparent from the description below, or recognized in the middle part of the description in face by the practice of the utility model.
It is equipped according to the electrolysis of the utility model second aspect embodiment, by using according to the utility model first aspect
The sealing exhaust fume collecting hood for Winning cell of embodiment, has many advantages, such as to collect that cigarette effect is good, weight is carried easily.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the structural schematic diagram according to the sealing exhaust fume collecting hood device for Winning cell of the utility model embodiment；
Fig. 2 is the top view according to the sealing exhaust fume collecting hood device for Winning cell of the utility model embodiment；
Fig. 3 is the cross-sectional view in Fig. 1 at A；
Fig. 4 is the cross-sectional view in Fig. 1 at B.
Appended drawing reference:
Seal exhaust fume collecting hood 100；
Seal closure 10；Supporting leg 11；Recessed handle 12；
Gas gathering mask 20；Air inlet 21；Static pressure chamber 30；Exhaust column 40；
Floor 50；Longitudinal floor 51；First horizontal ribbed 52；Second horizontal ribbed 53.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "vertical", "horizontal", "top", "bottom" "inner", the instructions such as "outside" orientation or positional relationship be
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, defining " first ", the feature of " second " can explicitly or implicitly include one
Or more this feature.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two with
On.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Below with reference to Fig. 1-Fig. 4 description according to the sealing exhaust fume collecting hood 100 for Winning cell of the utility model embodiment.
As shown in Figure 1, the sealing exhaust fume collecting hood 100 for Winning cell according to the utility model embodiment includes: seal closure
10, gas gathering mask 20 and exhaust column 40.
Wherein, in seal closure 10 is suitable for for Winning cell being located at, gas gathering mask 20 is set in seal closure 10 and is provide with Winning cell
Discharge portion, limit static pressure chamber 30 between gas gathering mask 20 and seal closure 10, and gas gathering mask 20 is equipped with gas gathering mask 20
Multiple air inlets 21 that inner space is connected to static pressure chamber 30, exhaust column 40 are connected on seal closure 10 and connect with static pressure chamber 30
It is logical.
Specifically, gas gathering mask 20 is located at the top of Winning cell, seal closure 10 is embedded in gas gathering mask 20, and is sealed
Cover 10 is located at the part of the generation flue gas of Winning cell, and the leakproofness between seal closure 10 and Winning cell is good, seal closure 10
Static pressure chamber 30 is limited between outer surface and the inner surface of gas gathering mask 20, static pressure chamber 30 is used to the part dynamic pressure of air-flow becoming quiet
Pressure is provided with multiple air inlets 21 to accelerating wind speed on gas gathering mask 20, multiple air inlets 21 are by static pressure chamber 30 and gas gathering mask 20
Flue gas inside gas gathering mask 20 can be passed through static pressure by multiple air inlets 21 by inside connection, the exhaust column 40 being connected to static pressure chamber 30
Chamber 30 is pumped out.
When that will start to work, staff is carried to above Winning cell Winning cell by gas gathering mask 20 is sealed, with blower
The exhaust column 40 of (not shown) connection is connected on seal closure 10, and the flue gas that Winning cell generates during motor can pass through
Multiple air inlets 21 enter static pressure chamber 30, and air-flow is converted into static pressure in the 30 inner part dynamic pressure of static pressure chamber, and each air inlet 21 flows into
Air current flow it is uniform, exhaust column 40 is flowed to by air inlet 21 in static pressure chamber 30 conducive to air-flow, completes to exist to Winning cell as a result,
The collection of generated flue gas in the process.After electrolytic deposition process, staff removes gas gathering mask 20 is sealed from Winning cell.
According to the sealing exhaust fume collecting hood 100 for Winning cell of the utility model embodiment, by gas gathering mask 20 and sealing
Static pressure chamber 30 is limited between cover 10, leakproofness is good between seal closure 10 and Winning cell, and the flue gas that Winning cell generates will not escape
It is scattered in environment, flue gas enters static pressure chamber 30 by multiple air inlets 21, and air-flow air quantity in static pressure chamber 30 is uniform, and can be with
Exhaust column 40 is smoothly flowed by air inlet 21, flue gas is not detained in static pressure chamber 30, conducive to flue gas collects and be discharged.Again
100 structure of sealing exhaust fume collecting hood for Winning cell of person, the utility model embodiment are simple, light-weight, and staff is facilitated to exist
It is mounted and dismounted in the Winning cell course of work.Therefore, according to the sealing collection cigarette for Winning cell of the utility model embodiment
Cover 100 has many advantages, such as to collect good, light-weight, the easy carrying of cigarette effect.
Below with reference to Fig. 1-Fig. 4 detailed description according to the sealing collection cigarette for Winning cell of the utility model specific embodiment
Cover 100.
In some embodiments of the utility model, multiple air inlets 21 are arranged on the roof of gas gathering mask 20 in multiple row,
Each column air inlet 21 along gas gathering mask 20 length direction arrangement and multiple row air inlet 21 along gas gathering mask 20 equal spacing in length direction
Distribution.For example, in the embodiment shown in Figure 2, multiple air inlets 21 are on the roof of gas gathering mask 20 along the length of gas gathering mask 20
Direction arrangement is arranged in two, and 21 equidistantly distributed of multiple air inlets, and for Winning cell during generating flue gas, flue gas can be by equal
Multiple air inlets 21 of even distribution enter static pressure chamber 30, and the flow direction of flue gas is evenly distributed as a result,, can be with conducive to the collection of flue gas
Prevent flue gas residence in gas gathering mask 20.
In some embodiments of the utility model, as shown in Figure 3 and Figure 4, in the length direction for being orthogonal to seal closure 10
Plane in, the orthographic projection of the roof of seal closure 10 is arch.The mechanical property of seal closure 10 is preferable as a result, is hardly damaged.
In one embodiment of the utility model, as shown in Figure 1, exhaust column 40 is connected to seal closure 10 along its length
On the side wall of the one end in direction.Enter length direction of the air-flow along seal closure 10 of static pressure chamber 30 by multiple air inlets 21 as a result,
Flowing, is equably discharged by exhaust column 40, the discharge effect of flue gas is good conducive to flue gas.
One embodiment according to the present utility model is equipped with multiple floors referring to embodiment shown in Fig. 2 in static pressure chamber 30
50, each floor 50 is connected with seal closure 10 and gas gathering mask 20 respectively.Floor 50 is respectively supported at the inner wall sum aggregate of seal closure 10
Between the outer wall of gas hood 20, floor 50 is used for the interlocking of fixing seal cover 10 and gas gathering mask 20, thus, it is possible to 10 sum aggregate of seal closure
The overall structure stability that gas hood 20 is constituted is preferable.
Further, multiple referring to Fig. 2 and embodiment shown in Fig. 4 in a specific embodiment of the utility model
Floor 50 includes: longitudinal floor 51, multiple first horizontal ribbed 52 and multiple second horizontal ribbed 53.
Wherein, longitudinal floor 51 extends along the length direction of seal closure 10, top of longitudinal floor 51 perpendicular to gas gathering mask 20
Wall setting, and longitudinal floor 51 connects with the highest point of seal closure 10.Multiple first horizontal ribbed 52 seal closure 10 width
Spend direction on be located at longitudinal rib plate 51 side, each first horizontal ribbed 52 along seal closure 10 width direction extend, and
Multiple first horizontal ribbed 52 are arranged along the length direction interval of seal closure 10, each first horizontal ribbed 52 with longitudinal floor 51
Between be spaced setting, that is to say, that there are gaps between first horizontal ribbed 52 and longitudinal floor 51.Multiple second is horizontal ribbed
53 are located at the other side of longitudinal rib plate 51 in the width direction of seal closure 10, and each second horizontal ribbed 53 along seal closure 10
Width direction extends, and multiple second horizontal ribbed 53 are arranged along the length direction interval of seal closure 10, and each second laterally
Be spaced and be arranged between floor 53 and longitudinal floor 51, that is to say, that between second horizontal ribbed 53 and longitudinal floor 51 there are
Gap.Fixed effect as a result, between seal closure 10 and gas gathering mask 20 is more preferable, and formed between seal closure 10 and gas gathering mask 20
Overall structure is more stable.
Pressure control in it is -200 by blower by one embodiment according to the present utility model, exhaust column 40
To -50Pa.Thus, it is possible to guarantee that the flue gas that Winning cell generates can steadily flow to exhaust column 40, collection cigarette effect is more preferable.
In one embodiment of the utility model, seal closure 10 is connected and is integrated with gas gathering mask 20.Such as Fig. 4 institute
Show, the inner wall with seal closure 10 is to connecing respectively at its width direction both ends for the roof of gas gathering mask 20, and seal closure 10 and gas collection
Cover 20 is integrated, the convenient processing and manufacture of the two, and the overall structure stability that the two is constituted further is promoted.
Optionally, seal closure 10 and gas gathering mask 20 are fiber glass resin flame retardant type material and with a thickness of 5-15mm.As a result,
The heat resistance of seal closure 10 and gas gathering mask 20 is preferable, and lighter in weight, carries convenient for staff.
One embodiment according to the present utility model, seal closure 10 have multiple supporting legs 11, and multiple supporting legs 11 are supported on close
The lower section of sealing cover 10.Such as in the embodiment shown in fig. 1, there are four supporting leg 11, four supporting legs 11 are set the tool of seal closure 10 respectively
Seal closure 10 is supported on motor slot by four edges in 10 lower end of seal closure, four supporting legs 11.
Further, as shown in figure 3, the both ends of the surface of seal closure 10 are equipped with recessed handle 12.Recessed handle 12 can be equipped with two
It is a, and two recessed handles 12 are symmetrical arranged, and staff is facilitated to carry sealing exhaust fume collecting hood 100 as a result,.
Electrolysis installation according to the utility model embodiment is described below.
Electrolysis installation according to the utility model embodiment includes Winning cell and sealing exhaust fume collecting hood 100.Wherein, Winning cell has
There is smoke evacuation part, sealing exhaust fume collecting hood 100 is the above-mentioned sealing exhaust fume collecting hood 100 for Winning cell, and the smoke evacuation part of Winning cell is close
In sealing cover 10 is located at.
In one embodiment of the utility model, Winning cell be it is multiple, gas gathering mask 20 is provide with the exhaust of multiple Winning cells
Part.
In another embodiment of the utility model, Winning cell is multiple and sealing exhaust fume collecting hood 100 is multiple, Duo Gemi
The gas gathering mask 20 of envelope exhaust fume collecting hood 100 is provide with the discharge portion of multiple Winning cells correspondingly.
It is equipped according to the electrolysis of the utility model embodiment, by utilizing according to the utility model embodiment for electrodeposition
The sealing exhaust fume collecting hood 100 of slot, has many advantages, such as to collect that cigarette effect is good, weight is carried easily.
According to the utility model embodiment for electrolytic cell sealing exhaust fume collecting hood 100 other constitute and operate for
All be for those of ordinary skill in the art it is known, be not detailed herein.In the description of this specification, reference term
The description of " one embodiment ", " some embodiments ", " example ", specific examples or " some examples " etc. means to combine the implementation
Example or example particular features, structures, materials, or characteristics described are contained at least one embodiment of the utility model or show
In example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.Moreover,
Particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples with suitable
Mode combines.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective
And modification, the scope of the utility model are defined by the claims and their equivalents.
Claims (13)
1. a kind of sealing exhaust fume collecting hood for Winning cell characterized by comprising
Seal closure, the seal closure are suitable for for the Winning cell being located at interior；
Gas gathering mask, the gas gathering mask are set in the seal closure and are provide with the discharge portion of the Winning cell, the gas gathering mask with
Static pressure chamber is limited between the seal closure and the gas gathering mask is equipped with the inner space of the gas gathering mask and the static pressure chamber
Multiple air inlets of connection；
Exhaust column, the exhaust column are connected on the seal closure and are connected to static pressure chamber.
2. the sealing exhaust fume collecting hood according to claim 1 for Winning cell, which is characterized in that multiple air inlets are in institute
Stating arrangement on the roof of gas gathering mask is in multiple row, length direction arrangement and multiple row air inlet edge of each column air inlet along the gas gathering mask
The equal spacing in length direction of the gas gathering mask is distributed.
3. the sealing exhaust fume collecting hood according to claim 1 for Winning cell, which is characterized in that be orthogonal to the seal closure
Length direction plane in, the orthographic projection of the roof of the seal closure is arch.
4. the sealing exhaust fume collecting hood according to claim 1 for Winning cell, which is characterized in that the exhaust column is connected to institute
It states on the side wall of one end along its length of seal closure.
5. the sealing exhaust fume collecting hood according to claim 1 for Winning cell, which is characterized in that the static pressure is intracavitary equipped with more
A floor, each floor are connected with the seal closure and the gas gathering mask respectively.
6. the sealing exhaust fume collecting hood according to claim 5 for Winning cell, which is characterized in that multiple floors include:
Longitudinal floor, the longitudinal direction floor extend along the length direction of the seal closure；
Multiple first is horizontal ribbed, multiple described first it is horizontal ribbed in the width direction of the seal closure be located at the longitudinal direction
The side of floor, each described first horizontal ribbed width direction along the seal closure extends and multiple first cross ribs
Plate is arranged along the length direction interval of the seal closure, and each described first horizontal ribbed be spaced between longitudinal floor sets
It sets；
Multiple second is horizontal ribbed, multiple described second it is horizontal ribbed in the width direction of the seal closure be located at the longitudinal direction
The other side of floor, each described second horizontal ribbed width direction extension along the seal closure and multiple described second is laterally
Floor along the seal closure length direction interval be arranged, each described second it is horizontal ribbed with it is described longitudinal direction floor between be spaced
Setting.
7. the sealing exhaust fume collecting hood according to claim 1 for Winning cell, which is characterized in that the air draft pipe passes through wind
Pressure control in it is -200 to -50Pa by machine.
8. the sealing exhaust fume collecting hood according to claim 1 for Winning cell, which is characterized in that the seal closure and the collection
Gas hood is connected and is integrated.
9. the sealing exhaust fume collecting hood according to claim 1 for Winning cell, which is characterized in that the seal closure and the collection
Gas hood is fiber glass resin flame retardant type material and with a thickness of 5-15mm.
10. the sealing exhaust fume collecting hood according to claim 1 for Winning cell, which is characterized in that the seal closure has more
A supporting leg, multiple supporting legs are supported on the lower section of the seal closure.
11. the sealing exhaust fume collecting hood according to claim 1 for Winning cell, which is characterized in that the both ends of the seal closure
Face is equipped with recessed handle.
12. a kind of electrolysis installation characterized by comprising
Winning cell, the Winning cell have smoke evacuation part；
The sealing exhaust fume collecting hood of Winning cell is used for described in any one of -11 according to claim 1.
13. electrolysis installation according to claim 12, which is characterized in that the Winning cell is multiple, the gas gathering mask cover
If the discharge portion of multiple Winning cells；Or
The Winning cell is that the multiple and described sealing exhaust fume collecting hood is multiple, the gas gathering mask one-to-one correspondence of multiple sealing exhaust fume collecting hoods
Ground is provide with the discharge portion of multiple Winning cells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820547516.1U CN208293096U (en) | 2018-04-17 | 2018-04-17 | For the sealing exhaust fume collecting hood of Winning cell and with its electrolysis installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820547516.1U CN208293096U (en) | 2018-04-17 | 2018-04-17 | For the sealing exhaust fume collecting hood of Winning cell and with its electrolysis installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208293096U true CN208293096U (en) | 2018-12-28 |
Family
ID=64726554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820547516.1U Active CN208293096U (en) | 2018-04-17 | 2018-04-17 | For the sealing exhaust fume collecting hood of Winning cell and with its electrolysis installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208293096U (en) |
-
2018
- 2018-04-17 CN CN201820547516.1U patent/CN208293096U/en active Active
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