CN210186526U - Solid hazardous waste nickel, cadmium refine with multistage suction filter device - Google Patents
Solid hazardous waste nickel, cadmium refine with multistage suction filter device Download PDFInfo
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- CN210186526U CN210186526U CN201920580057.1U CN201920580057U CN210186526U CN 210186526 U CN210186526 U CN 210186526U CN 201920580057 U CN201920580057 U CN 201920580057U CN 210186526 U CN210186526 U CN 210186526U
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- suction filtration
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- filter cloth
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model provides a solid hazardous waste nickel, cadmium are refined with multistage suction filtration device, the purpose is solved prior art scheme and is easily blockked up the filter cloth to and the lotion quantity makes the filter cake secondary strain longer and the technical problem that the treatment effeciency that leads to is low when dry with greatly. The suction filtration device comprises a plurality of stacked cylinders embedded in a shell. The inner part of the cylinder body is sequentially provided with a spraying ring pipe, a filter support, filter cloth and a necking part from top to bottom, and the side wall of the cylinder body projected in the radial direction of the necking part is provided with an air exhaust hole communicated with a vacuum pump. Wherein the aperture of the filter cloth is reduced along with the reduction of the vertical position of the filter cloth. The utility model discloses carry out multistage suction filtration to thick liquids, the granule of different particle diameters in the successive layer separation thick liquids is favorable to avoiding blockking up the filter cloth, improves suction filtration efficiency. Meanwhile, through the spraying ring pipes arranged in the cylinders, the filter cakes subjected to suction filtration are cleaned in a spraying mode, so that the use amount of washing liquid is reduced, and the time for drying the filter cakes by filtration again is shortened.
Description
Technical Field
The utility model relates to a contain heavy metal hazardous waste and handle and metal recovery technical field, especially relate to a solid hazardous waste nickel, cadmium refine and use multistage suction filter device.
Background
The cadmium-nickel battery uses metal cadmium as negative active material, nickel hydroxide as positive active material, the positive and negative materials are respectively filled in perforated nickel-attached steel band (or nickel band), and made into polar plate by means of slurry-drawing, rolling, sintering, forming or pasting, drying and tabletting, and the electrode is winded or laminated and assembled in the plastic or nickel-plated steel shell. The cadmium-nickel battery can be used as a starting or emergency power supply for railway locomotives, mines, armored vehicles, aircraft engines and the like, can also be used for portable electrical appliances such as electric tools, shavers and the like, and can be used in the fields of low-current and low-rate discharge cordless telephones, electric toys and the like, and has strong applicability, so that the use amount is large. Because the cadmium-nickel battery has a memory effect, the cadmium-nickel battery is often rejected due to improper use methods. The scrapped cadmium-nickel battery belongs to solid hazardous waste, has threats to the environment and human health, and needs to be properly treated; and if the metal nickel and cadmium contained in the alloy are directly discarded, the waste of resources is caused.
At present, the nickel and cadmium separation methods comprise an extraction method, an acid leaching method, an emulsion membrane method, a vacuum distillation method and the like, but all have the defects of incomplete separation and large loss. Aiming at the problems, the applicant converts cadmium in a system into soluble cadmium oxide and metal nickel is insoluble by treatment such as reduction, acid leaching and the like, and the slurry of the cadmium and the metal nickel which coexist is completely separated by suction filtration treatment, and then filter cakes and filtrate are respectively treated to obtain nickel ingots and CdCO with higher grade3. The applicant filed an invention patent application for this technology and was granted patent number CN 104141044B.
The applicant discovers that the existing suction filtration device adopts filter cloth with smaller aperture to complete suction filtration treatment at one time and can obtain higher separation purity in the process of processing and producing by adopting the existing device/equipment to implement the scheme. However, because the particle size of the substances in the suction filtration slurry is extremely uneven, larger particles are more likely to contact with the filter cloth, so that blockage is caused, and the suction filtration efficiency is reduced. And after the suction filtration is finished, the filter cake needs to be cleaned. The filter cake cleaning is carried out in the existing suction filtration device/equipment, only a flow washing or immersion washing mode can be adopted, but the two modes have larger washing liquid consumption, and the filtration drying operation after cleaning consumes longer time.
Disclosure of Invention
To the above-mentioned condition, for overcoming prior art's defect, the utility model provides a solid hazardous waste nickel, cadmium are refined with multistage suction filtration device has solved the easy filter cloth that blocks up of prior art scheme to and the lotion quantity makes the filter cake secondary strain dry the technical problem that the treatment effeciency is low that longer and lead to greatly.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a solid hazardous waste nickel, cadmium are refined and are used multistage suction filtration device, is including the casing that has inside accommodation space to and the vacuum pump that is linked together through pipeline and accommodation space, the casing top is uncovered, the bottom is equipped with the liquid material export, its characterized in that, this suction filtration device still includes:
the top of the cylinder is open, the bottom of the cylinder is provided with a liquid outlet hole, and a plurality of cylinders are stacked and embedded in the shell;
the filter support is radially fixed in the middle of the cylinder body and is of a net structure;
the filter cloth is movably attached above the filter holder;
the spraying ring pipe is fixedly arranged in the cylinder above the filter support;
the necking part is fixedly arranged in the cylinder body below the filter support;
the washing liquid injection hole is formed in the side wall close to the top of the barrel and communicated with the spraying ring pipe;
the air exhaust hole is formed in the side wall of the cylinder body below the filter support, projects at the necking part in the radial direction, and is communicated with the vacuum pump through a pipeline;
wherein the aperture of the filter cloth is reduced along with the reduction of the vertical position of the filter cloth; the side wall of the shell is provided with an orifice matched with the washing liquid injection hole and the air exhaust hole.
Furthermore, the barrel includes along upper barrel and lower barrel of axial swing joint, and the spray ring pipe sets up in the upper barrel, and the throat sets up in the barrel down.
Furthermore, a sealing ring is arranged between the upper cylinder body and the lower cylinder body.
Furthermore, the filter support is movably arranged at the top of the necking part.
Furthermore, the washing liquid injection hole and the air exhaust hole both adopt a thread structure.
The utility model discloses beneficial effect:
1. the utility model discloses a plurality of filter cloth that will have aperture gradient lead to filtering and hold in the palm the activity and set up in a plurality of barrels that the axial stacked, carry out multistage suction filtration to thick liquids, the granule of different particle diameters in the successive layer separation thick liquids is favorable to avoiding blockking up the filter cloth, improves suction filtration efficiency.
2. The utility model discloses be equipped with the spray ring pipe in each barrel to spray each filter cake after the mode is to the suction filtration and wash, be favorable to reducing the lotion quantity, shorten the filter cake and strain futilely long once more.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a perspective schematic view of the present invention.
Fig. 2 is a schematic sectional structure view of the cylinder and the inside thereof.
Fig. 3 is a perspective structural schematic view of an upper cylinder and a lower cylinder in an embodiment of the present invention.
Reference numerals: 1. the washing machine comprises a cylinder body, 11 parts of an upper cylinder body, 12 parts of a lower cylinder body, 2 parts of a liquid outlet hole, 3 parts of a filter holder, 4 parts of filter cloth, 5 parts of a spray ring pipe, 6 parts of a necking part, 7 parts of a washing liquid injection hole, 8 parts of an air exhaust hole and 10 parts of a shell.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the claimed embodiments. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the description of the embodiments of the present application, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", "axial", "radial", and the like are used in the orientation or positional relationship shown in the drawings, and are used for convenience in describing the embodiments of the present application and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the embodiments of the present application.
In the embodiments of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.
In the embodiments of the present application, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
The following disclosure provides many different embodiments or examples for implementing different configurations of embodiments of the invention. In order to simplify the disclosure of the embodiments of the present application, the components and arrangements of the specific examples are described below. Of course, they are merely examples and are not intended to limit embodiments of the present application. Moreover, the claimed embodiments may repeat reference numerals and/or letters in the various examples, which have been repeated for purposes of brevity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The utility model discloses application embodiment provides a solid hazardous waste nickel, cadmium are refined with multistage suction filtration device, this suction filtration device includes:
as shown in fig. 1, a housing 10 having an inner receiving space is provided. The top of the device is open and is used for injecting slurry to carry out suction filtration operation; the bottom is provided with a liquid material outlet for collecting filtrate for subsequent treatment.
The vacuum pump is communicated with the accommodating space of the shell 10 through a pipeline and is used for manufacturing a vacuum environment for suction filtration.
A plurality of cylinders 1 are stacked and embedded in the shell 10. And carrying out suction filtration treatment at a specific level in each cylinder, wherein the particle size of the filtrate is reduced along with the reduction of the vertical position of the cylinder.
As shown in figure 2, the cylinder body 1 is provided with an open top and a liquid outlet 2 at the bottom. The slurry enters the barrel body 1 from the opening at the top to implement suction filtration, and the filtrate is discharged from the liquid outlet hole 2 to the barrel body below to carry out next-stage suction filtration.
The filter support 3 is radially fixed in the middle of the cylinder body 1 and is of a net structure. For providing suction filtration sites.
The filter cloth 4 is movably attached above the filter holder 3. The aperture of the filter cloth 4 becomes smaller as the vertical position of the filter cloth 4 is lowered. Through the combination of a plurality of filter cloth that have different apertures replace adopting single aperture filter cloth to carry out single processing to thick liquids among the prior art scheme, avoided thick liquids to cause the jam and influence suction filtration efficiency to the filter cloth.
And the necking part 6 is fixedly arranged in the cylinder body 1 below the filter support 3. The vacuum suction device has the functions of isolating filtrate and air flow, has the same using effect as the safety bottle of the existing suction device, and has the advantages of compact structure, no need of external pipelines and the like.
The extraction hole 8 is arranged on the side wall of the cylinder 1 below the filter support 3, the radial projection is arranged on the necking part 6, and the extraction hole 8 is communicated with the vacuum pump through a pipeline. Air in the cylinder 1 below the filter cloth 4 is pumped through the pumping holes 8 to form a negative pressure environment, so that filtrate can be filtered out quickly.
And the spraying ring pipe 5 is fixedly arranged in the cylinder body 1 above the filter support 3. The filter cake formed by suction filtration below is cleaned in a spraying mode.
And a washing liquid injection hole 7 which is arranged on the side wall close to the top of the cylinder 1 and communicated with the spray ring pipe 5. An external control pipeline is connected into a washing liquid injection hole 7, washing liquid is manually/automatically injected into the spraying ring pipe 5 at a specific pressure, is released into the cylinder body 1 from the spraying hole in a spraying mode, and falls to the filter cloth 4 to clean filter cakes remained on the filter cloth.
The side wall of the shell 10 is provided with an opening which is matched with the washing liquid injection hole 7 and the air suction hole 8. Corresponding pipelines penetrate through the shell and are communicated with the cylinders to complete the spray cleaning and suction filtration operation.
As shown in fig. 3, the cylinder 1 includes an upper cylinder 11 and a lower cylinder 12 movably connected in the axial direction, the shower ring pipe 5 is disposed in the upper cylinder 11, and the choke 6 is disposed in the lower cylinder 12. And a split structure is adopted, so that the filter cake can be conveniently taken out.
A sealing ring is arranged between the upper cylinder body 11 and the lower cylinder body 12. And the leakage in the suction filtration process is avoided.
The washing liquid injection hole 7 and the air suction hole 8 are both in a threaded structure. The external connecting pipe is in threaded connection with the two holes, so that the stability is improved.
The use method I comprises the following steps:
the method comprises the steps of carrying out acidification pulping on cadmium-nickel battery waste, replacing copper by iron, extracting and precipitating cobalt and zinc, washing and stirring to obtain slurry.
As shown in fig. 1, slurry is injected into the accommodating space from the top inlet of the housing. The slurry first enters the top most barrel 101. The external pipeline connected with the vacuum pump is communicated with the side wall air exhaust hole of the barrel body at the position through a threaded structure, air in the area below the filtering support of the barrel body is extracted, a negative pressure environment is formed, and suction filtration is carried out. The filter cloth in the cylinder has the largest pore diameter, and the filtrate still contains a large amount of solid particles after the slurry is filtered.
The filtrate containing a large amount of solid particles flows into the cylinder 102 through the liquid outlet hole at the bottom of the cylinder 101. The aperture of the filter cloth in the cylinder is slightly reduced compared with the aperture of the upper filter cloth, and the particle size of solid particles in the filter cake obtained by suction filtration is reduced.
The filtrate flows downwards into the next layer of cylinder in sequence until flowing out from the bottom of the cylinder at the bottom layer, and is collected in a centralized manner through a liquid material outlet at the bottom of the shell, so that the content of solid particles in the filtrate is very low.
And after the suction filtration is finished, sequentially taking out the cylinders from the top of the shell. Separating the upper and lower cylinders, taking out the filter holder, and collecting the filter cake.
The use method II comprises the following steps:
the filter cake obtained by the first using method is crushed, burned and reduced, then mixed with water for pulping, temperature control and acidity adjustment, so that cadmium oxide is completely dissolved, and metallic nickel is kept insoluble.
The suction filtration operation is the same as the use method I.
After the suction filtration is finished, an external control pipeline connected with the washing liquid is communicated with a washing liquid injection hole on the side wall of the barrel body through a thread structure, and a dilute sulfuric acid solution with the concentration of 5% -15% is pumped into the spraying ring pipe at a certain pressure. The dilute sulphuric acid solution is in the form of mist through the spraying holes and falls on the filter cake,washing the filter cake to remove Cd2+Fully enters into the solution to realize the complete separation of nickel and cadmium. In the washing process, the suction filtration state is kept to accelerate the penetration of the washing liquid to the filter cake and realize the secondary filtration of the filter cake.
And after the washing liquid is collected at a liquid outlet at the bottom of the shell, the washing liquid is combined with the filtrate collected during suction filtration and used for extracting the metal cadmium.
And after the suction filtration and the secondary filtration are finished, collecting a filter cake.
Claims (5)
1. The utility model provides a refined multistage suction filtration device that uses of dangerous waste nickel of solid, cadmium, is including casing (10) that has inside accommodation space to and the vacuum pump that is linked together through pipeline and accommodation space, casing (10) open-top, bottom are equipped with the liquid material export, its characterized in that, this suction filtration device still includes:
the device comprises a plurality of cylinders (1), wherein the top of each cylinder (1) is open, the bottom of each cylinder is provided with a liquid outlet (2), and the plurality of cylinders (1) are overlapped and embedded in a shell (10);
the filter support (3) is radially fixed in the middle of the cylinder body (1) and is of a net structure;
the filter cloth (4) is movably attached above the filter holder (3);
the spraying ring pipe (5) is fixedly arranged in the cylinder body (1) above the filter support (3);
the necking part (6) is fixedly arranged in the cylinder body (1) below the filter holder (3);
a washing liquid injection hole (7) which is arranged at the side wall close to the top of the cylinder body (1) and communicated with the spraying ring pipe (5);
the air exhaust hole (8) is formed in the side wall of the barrel body (1) below the filter support (3), projects in the radial direction at the necking part (6), and is communicated with the vacuum pump through a pipeline;
wherein the aperture of the filter cloth (4) is reduced along with the reduction of the vertical position of the filter cloth (4); the side wall of the shell (10) is provided with an orifice matched with the washing liquid injection hole (7) and the air suction hole (8).
2. The suction filtration device according to claim 1, wherein the cylinder (1) comprises an upper cylinder (11) and a lower cylinder (12) which are movably connected along the axial direction, the spray ring pipe (5) is arranged in the upper cylinder (11), and the choke portion (6) is arranged in the lower cylinder (12).
3. A suction filtration device as claimed in claim 2, characterized in that a sealing ring is provided between the upper cylinder (11) and the lower cylinder (12).
4. Suction filtration device according to claim 2, characterized in that the filter holder (3) is movably arranged on the top of the throat (6).
5. Suction filtration device according to claim 1, characterized in that the washing liquid injection hole (7) and the suction hole (8) are both threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920580057.1U CN210186526U (en) | 2019-04-25 | 2019-04-25 | Solid hazardous waste nickel, cadmium refine with multistage suction filter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920580057.1U CN210186526U (en) | 2019-04-25 | 2019-04-25 | Solid hazardous waste nickel, cadmium refine with multistage suction filter device |
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| Publication Number | Publication Date |
|---|---|
| CN210186526U true CN210186526U (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920580057.1U Expired - Fee Related CN210186526U (en) | 2019-04-25 | 2019-04-25 | Solid hazardous waste nickel, cadmium refine with multistage suction filter device |
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| CN (1) | CN210186526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114588682A (en) * | 2022-01-12 | 2022-06-07 | 中国矿业大学 | Vacuum filtration-mechanical extrusion integrated coal gasification fine slag continuous dehydration cavity and method |
-
2019
- 2019-04-25 CN CN201920580057.1U patent/CN210186526U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114588682A (en) * | 2022-01-12 | 2022-06-07 | 中国矿业大学 | Vacuum filtration-mechanical extrusion integrated coal gasification fine slag continuous dehydration cavity and method |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200327 Termination date: 20210425 |
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| CF01 | Termination of patent right due to non-payment of annual fee |