Aluminum electrolysis desulfurization recovery treatment tank

Abstract

The aluminum electrolysis desulfurization recycling treatment tank comprises a tank body and a first filtering part, a first cavity and a second cavity which are distributed in the vertical direction are formed in the tank body, a first filtering cavity with a first opening is formed in the first filtering part, the first filtering part is arranged in the first cavity, and the first opening faces the second cavity; according to the device, by means of a bottom-to-top filtering mode, recycled products are filtered in the first filtering cavity, under the action of gravity, the recycled products attached to the interior of the first filtering cavity can be shaken down and discharged through the first opening in a flapping or blowing and beating mode, and therefore compared with a traditional filtering mode of feeding through the upper end, the recycling efficiency is greatly improved. According to the invention, the taking-out frequency of the filter screen is reduced, so that the filtering efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of desulfurization, and particularly relates to an aluminum electrolysis desulfurization recovery treatment tank. BACKGROUND

[0002] In the aluminum electrolysis industry, flue gas generated will contain sulfur oxides, which can easily cause environmental pollution to the atmosphere, so a desulfurization reaction needs to be carried out in a reaction tower, and common desulfurization methods include gypsum desulfurization and semi-dry desulfurization, wherein gypsum desulfurization is widely applied due to high desulfurization efficiency, low investment cost, resource utilization and mature and reliable technology.

[0003] In the gypsum desulfurization process, the reacted gypsum slurry needs to be recovered and treated to realize resource recycling, that is, the product is recovered through steps such as cyclone concentration and vacuum dehydration, wherein the cyclone concentration is the first step of dehydration, and in the dehydration process, unreacted limestone, gypsum crystals and the like will be discharged together with clean water, causing certain resource waste, and in the related art, a sedimentation and filtration method is generally used to obtain the recovered product.

[0004] However, the filter in the prior art mostly adopts a bag filter, that is, the filter bag opening is upward, the upper end is used for feeding, the lower end is used for discharging, and the material is stacked on the filter bag, in order to avoid filter bag blockage, the user needs to frequently open the cover, then take out the support frame, and then take down the material in the filter bag or replace the filter bag, so that the whole filtration efficiency is greatly reduced. Practical new type content

[0005] The aluminum electrolysis desulfurization recovery treatment tank provided in the application embodiment can solve the technical problem that in the related art, in order to avoid filter bag blockage, the user needs to frequently open the cover, then take out the support frame, and then take down the material in the filter bag or replace the filter bag, so that the whole filtration efficiency is greatly reduced.

[0006] The aluminum electrolysis desulfurization recovery treatment tank provided in the application embodiment comprises a tank body and a first filter part, the tank body is internally formed with a first cavity and a second cavity which are sequentially distributed from top to bottom, the tank body is provided with a first liquid discharge pipe communicating with the first cavity and a liquid inlet pipe communicating with the second cavity, the first filter part is formed with a first filter cavity with a first opening, the first filter part is arranged in the first cavity, and the first opening faces the second cavity.

[0007] The aluminum electrolysis desulfurization recovery treatment tank based on the embodiments of the present application, by facing the first opening of the first filter part to the lower end, the recovery product is filtered in the first filter cavity, under the action of gravity, by patting or blowing, the recovery product attached in the first filter cavity can be shaken down, and discharged through the first opening, therefore, compared with the traditional filtering mode through the upper end feeding, the present application reduces the frequency of taking out the filter screen, thereby improving the filtering efficiency.

[0008] In some embodiments, a first partition plate is arranged in the tank body to separate the first cavity and the second cavity, a first gap is arranged on the first partition plate to communicate the first cavity and the second cavity, and the first filter part is detachably fixed on the first partition plate, and the first opening is opposite to the first gap.

[0009] Based on the above-mentioned embodiments, the first partition plate is provided to facilitate the installation of the first filter part, and the first filter part can be conveniently taken out from the first cavity in a detachable manner, and then replaced or maintained.

[0010] In some embodiments, a limiting groove is recessed on the side of the first partition plate facing the first cavity, and part of the first filter part is embedded in the limiting groove.

[0011] Based on the above-mentioned embodiments, by embedding part of the first filter part in the limiting groove, not only the quick installation can be realized, but also the stability during use can be ensured.

[0012] In some embodiments, the tank body has a top cover which is detachably arranged on the upper end of the tank body and is used to open or close the first cavity, and when the top cover is installed on the tank body, the top cover abuts against the first filter part.

[0013] Based on the above-mentioned embodiments, in order to further ensure the stability during use, after the top cover is installed, the top cover can abut against the first filter part from top to bottom, and after the top cover is opened, the first filter part can be conveniently taken out by the user.

[0014] In some embodiments, the side of the top cover facing the first cavity is provided with a flexible part, and when the top cover is installed on the tank body, the flexible part abuts against the first filter part.

[0015] Based on the above-mentioned embodiments, the flexible part can reduce the wear of the first filter part and improve the service life of the first filter part.

[0016] In some embodiments, the bottom end of the tank body is further provided with a second liquid discharge pipe communicating with the second cavity.

[0017] Based on the above-mentioned embodiments, the second liquid discharge pipe is convenient for discharging the residual waste liquid in the tank body.

[0018] In some embodiments, a third cavity is formed in the tank body and located at the lower end of the second cavity, and the treatment tank further comprises a second filter part formed with a second filter cavity having a second opening, the second filter part is arranged in the third cavity and the second opening faces the second cavity.

[0019] According to the above embodiments, the second filter part can filter the recovered products remaining in the waste liquid, thereby avoiding resource waste.

[0020] In some embodiments, a second partition plate is arranged in the tank body to separate the second cavity and the third cavity, a second gap is formed in the second partition plate to communicate the second cavity and the third cavity, and the second filter part is detachably fixed on the second partition plate.

[0021] According to the above embodiments, the second partition plate provides a position for detachable installation of the second filter part, thereby facilitating installation and detachment of the second filter part.

[0022] In some embodiments, the side wall end of the second filter part forming the second opening extends radially outward and forms a limiting part to be arranged on the side of the second partition plate facing the second cavity.

[0023] According to the above embodiments, the installation mode can be quickly realized, thereby facilitating installation and detachment of the second filter part.

[0024] In some embodiments, the second partition plate is formed with a stepped part extending along the circumferential direction of the second gap, and part of the limiting part is attached to the stepped part.

[0025] According to the above embodiments, the limiting part is attached to the stepped part on the second partition plate, thereby facilitating installation and positioning of the second filter part and ensuring stability during use.

[0026] The aluminum electrolysis desulfurization and recovery treatment tank according to the embodiments of the present application comprises a tank body and a first filter part, the tank body has a first cavity and a second cavity distributed along the up-down direction, the first filter part is formed with a first filter cavity having a first opening, the first filter part is arranged in the first cavity and the first opening faces the second cavity, the present application uses a filtering mode from bottom to top, so that the recovered products are filtered in the first filter cavity, under the action of gravity, the recovered products adhered to the first filter cavity can be shaken down by beating or blowing, and then discharged through the first opening. Therefore, compared with the traditional filtering mode of feeding from the upper end, the present application reduces the frequency of taking out the filter screen, thereby improving the filtering efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the accompanying drawings in the following description only only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0028] Figure 1 The perspective view provided for the embodiments of the present application;

[0029] Figure 2 The front view provided for the embodiments of the present application;

[0030] Figure 3 The Figure 2 The cross-sectional view of A-A in the middle;

[0031] Figure 4 The Figure 3 The enlarged view of the structure of A in the middle;

[0032] Figure 5 The Figure 2 The perspective view of the cross-sectional structure of A-A in the middle.

[0033] Legend: 1, tank body; 1a, first cavity; 1b, second cavity; 1c, third cavity; 11, first liquid discharge pipe; 12, liquid inlet pipe; 13, first partition plate; 13a, first notch; 13b, limiting groove; 14, top cover; 14a, flexible part; 15, second liquid discharge pipe; 16, second partition plate; 16a, second notch; 16b, step part; 2, first filter part; 2a, first filter cavity; 3, second filter part; 3a, second filter cavity; 31, limiting part. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present application more clear, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not used to limit the present application.

[0035] In the related art, the user needs to frequently open the cover, then take out the filter screen, and then take out the substances inside or replace the filter bag, which has the technical problem of greatly reducing the efficiency of the whole filtration.

[0036] In order to solve the above technical problems, the present application proposes an aluminum electrolysis desulfurization recovery treatment tank, which comprises a tank body 1 and a first filter part 2.

[0037] The tank body 1 is made of stainless steel, and a first cavity 1a and a second cavity 1b are formed in the tank body 1 from top to bottom.

[0038] The first filter part 2 is provided in the first cavity 1a and is formed with a first filter cavity 2a having a first opening, the first filter cavity 2a is partially overlapped with the first cavity 1a, and the first opening faces the second cavity 1b. In this way, when the slurry after precipitation is filtered, the slurry enters the second cavity 1b through the lower liquid inlet pipe 12, and then enters the first filter cavity 2a and the first cavity 1a in turn, and finally is discharged through the first liquid outlet pipe 11.

[0039] At this stage, the slurry is filtered by the first filter part 2, and is attached to the inner side wall of the first filter cavity 2a. Under the action of gravity, the recovered product attached in the first filter cavity 2a can be shaken down by beating or blowing, and is discharged through the first opening. Compared with the traditional filtering mode of feeding from the upper end, the frequency of taking out the filter screen is reduced, and the filtering efficiency is improved.

[0040] The first filter part 2 can be a filter screen or a support frame plus a filter bag. The filter screen has the advantages of easy cleaning of the attached product, but is easy to wear and needs to be replaced frequently. The support frame plus the filter bag has the advantages that the filter bag can be repeatedly used after cleaning, which is beneficial to cost saving, but the cleaning of the attached product is slightly slow. It should be understood that when the support frame and the filter bag are used, the support frame needs to form a chamber to place the filter bag, that is, the filter bag is located in the support frame. The user can fix the filter bag on the support frame by a rope or other connecting members in the prior art.

[0041] Referring to Figure 3 and Figure 4 , the tank body 1 is provided with a first partition plate 13, the first partition plate 13 is provided in close contact with the inner side wall of the tank body 1 and can be fixed by screw connection or welding, and separates the first cavity 1a and the second cavity 1b. The first partition plate 13 is provided with a first gap 13a to communicate the first cavity 1a and the second cavity 1b. The first filter part 2 is detachably fixed on the first partition plate 13, and the first opening is opposite to the first gap 13a.

[0042] In this way, when the slurry enters the first filter cavity 2a from the second cavity 1b, it can only enter through the first gap 13a, avoiding the slurry directly entering the first cavity 1a from other positions, thereby causing the unfiltered slurry to enter the first liquid outlet pipe 11, and further causing the waste of resources.

[0043] In another aspect, the first partition 13 is provided to facilitate installation of the first filter part 2, and the first filter part 2 is detachably fixed on the first partition 13, which is convenient for taking out the first filter part 2 from the first cavity 1a for replacement or maintenance.

[0044] In the above embodiment, the specific detachable manner is that the first partition 13 is recessed with a limiting groove 13b on the side facing the first cavity 1a, and part of the first filter part 2 is embedded in the limiting groove 13b.

[0045] The limiting groove 13b is circumferentially arranged on the first partition 13, and the first filter part 2 has one end with a first opening embedded in the limiting groove 13b to realize the positioning and installation function, and in addition, the stability in use can be ensured due to the limiting effect of the limiting groove 13b.

[0046] In the present application, the limiting groove 13b is located at the edge of the first gap 13a, that is, a step structure is formed with the limiting groove 13b, the end face of the first opening on the first filter part 2 abuts against one face of the step, and the outer side wall of the first filter part 2 abuts against the other face of the step, so that the limiting function of the limiting groove 13b can be realized.

[0047] The tank body 1 has a top cover 14 which is detachably arranged at the upper end of the tank body 1, and the top cover 14 is made of the same material as the tank body 1, which can be hinged with the tank body 1 or connected with the tank body 1 by bolts, and is used to open or close the first cavity 1a, and the opening of the top cover 14 facilitates the taking out of the first filter part 2 for replacement.

[0048] Generally, the slurry entering the tank body 1 is pumped, so under the impact of the fluid, the first filter part 2 may be separated from the first partition 13, so that the recycling and filtering function cannot be realized or is difficult to realize, therefore, in the present application, when the top cover 14 is installed on the tank body 1, the top cover 14 abuts against the first filter part 2, which is equivalent to pressing the first filter part 2 from top to bottom on the first partition 13, so as to ensure the stability of the first filter part 2 in use.

[0049] In order to reduce wear and tear, the side of the top cover 14 facing the first cavity 1a is provided with a flexible part 14a, which abuts against the first filter part 2 when the top cover 14 is installed on the tank body 1, and the flexible part 14a can be rubber, silicone and cloth structure, generally cloth is used to reduce cost and facilitate installation, which avoids the direct rigid friction between the first filter part 2 and the top cover 14, thereby prolonging the service life of the first filter part 2.

[0050] In order to facilitate the discharge of waste liquid and recycled products, the bottom end of the tank body 1 is also provided with a second liquid discharge pipe 15 communicating with the second cavity 1b.

[0051] The tank body 1 is unpowered, and thus when there is no slurry outside for conveying, part of the slurry will remain in the tank body 1 under the action of gravity and needs to be discharged in time, but the slurry has not been filtered and thus if it is directly discharged, resources will be wasted, and the product attached to the first filtering part 2 will also be taken out.

[0052] Based on this, the third cavity 1c is further formed in the tank body 1 and is located at the lower end of the second cavity 1b, and the processing tank further comprises a second filtering part 3, which is formed with a second filtering cavity 3a with a second opening and is arranged in the third cavity 1c, and the second opening faces the second cavity 1b.

[0053] The second filtering part 3 is a filtering mode in which the material is fed from the upper end and discharged from the lower end, and is mainly used for filtering the slurry remaining in the tank body 1, and thus does not need to be in a filtering state all the time like the first filtering part 2, and thus the degree of wear is smaller.

[0054] The second filtering part 3, like the first filtering part 2, can be a filter screen or a form of a support frame plus a filter bag, and it can be understood that whether it is a filter screen or a support frame, it is made of elastic stainless steel and has a certain deformation capacity.

[0055] Referring to Figure 3 and Figure 4 , the second partition plate 16 is arranged in the tank body 1 and is arranged in abutment with the inner side wall of the tank body 1 and can be fixed by screw connection or welding and separates the second cavity 1b and the third cavity 1c, the second partition plate 16 is provided with a second gap 16a to communicate the second cavity 1b and the third cavity 1c, and the second filtering part 3 is detachably fixed on the second partition plate 16.

[0056] In this way, when the slurry enters the second filtering cavity 3a from the second cavity 1b, it can only enter through the second gap 16a, avoiding the slurry directly entering the third cavity 1c from other positions, thus causing the slurry to enter the second discharge pipe 15 without being filtered, and thus causing resource waste.

[0057] The second partition plate 16 gives the second filtering part 3 a position for detachable installation, facilitating the installation and removal of the second filtering part 3.

[0058] Further, the side wall end portion of the second filtering part 3 forming the second opening extends radially outward and forms a limiting part 31 to be arranged on the side of the second partition plate 16 facing the second cavity 1b.

[0059] The second filtering part 3 can be installed on the second partition plate 16 in a direct arrangement manner, and it is convenient to install and remove.

[0060] It should be understood that in order to facilitate the removal of the second filter part 3, the tank body 1 comprises an upper tank body 17 and a lower tank body 18, wherein the third cavity 1c is located in the lower tank body, and the upper tank body 17 and the lower tank body 18 are connected together by means of flange bolts, and when it is necessary to remove the second filter part 3, the user should first separate the upper tank body 17 and the lower tank body 18, then remove the lower tank body 17, and then take out the second filter part 3 from the lower tank body 17.

[0061] In some other possible embodiments, the second filter part 3 can also be installed on the second partition plate 16 by means of clamping.

[0062] Further, the second partition plate 16 is formed with a stepped portion 16b extending in the circumferential direction of the second notch 16a, and part of the limiting portion 31 is in abutment with the stepped portion 16b.

[0063] The stepped portion 16b has two continuous stepped surfaces, and the limiting portion 31 is in abutment with the two stepped surfaces respectively, so that the quick positioning effect can be achieved, and the second filter part 3 can be prevented from being deviated during the filtration of the slurry.

[0064] In the drawings of the embodiments, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation of the present patent, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0065] The above description is only the preferred embodiments of the present application, and is not intended to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An aluminum electrolytic desulfurization recovery treatment tank characterized by comprising: The application relates to a processing tank. The tank body (1) is internally formed with a first cavity (1a) and a second cavity (1b) arranged in sequence from top to bottom, the tank body (1) is provided with a first liquid discharge pipe (11) communicating with the first cavity (1a) and a liquid inlet pipe (12) communicating with the second cavity (1b), the first liquid discharge pipe (11) is arranged at the upper portion of the first cavity (1a), and the liquid inlet pipe (12) is arranged at the lower portion of the second cavity (1b); and The first filter part (2) is formed with a first filter cavity (2a) with a first opening, the first filter part (2) is arranged in the first cavity (1a), and the first opening faces the second cavity (1b).

2. The aluminum electrolytic sweetening recovery canister of claim 1, wherein, The tank body (1) is internally provided with a first partition plate (13) for separating the first cavity (1a) and the second cavity (1b), the first partition plate (13) is provided with a first gap (13a) for communicating the first cavity (1a) and the second cavity (1b), the first filter part (2) is detachably fixed on the first partition plate (13), and the first opening is opposite to the first gap (13a).

3. The aluminum electrolytic sweetening recovery canister of claim 2, wherein, The first partition plate (13) is recessed with a limiting groove (13b) on the side facing the first cavity (1a), and part of the first filter part (2) is embedded in the limiting groove (13b).

4. The aluminum electrolytic sweetening recovery canister of claim 1, wherein, The tank body (1) is provided with a top cover (14) which is detachably arranged at the upper end of the tank body (1) and used for opening or closing the first cavity (1a), when the top cover (14) is arranged on the tank body (1), the top cover (14) abuts against the first filter part (2).

5. The aluminum electrolytic sweetening recovery canister of claim 4, wherein, The top cover (14) is provided with a flexible part (14a) on the side facing the first cavity (1a), when the top cover (14) is arranged on the tank body (1), the flexible part (14a) abuts against the first filter part (2).

6. The aluminum electrolytic sweetening recovery canister of claim 1, wherein, The bottom end of the tank body (1) is further provided with a second liquid discharge pipe (15) communicating with the second cavity (1b).

7. The aluminum electrolytic sweetening recovery canister of claim 1, wherein, The tank body (1) is further internally formed with a third cavity (1c) located at the lower end of the second cavity (1b). The processing tank further comprises a second filter part (3) formed with a second filter cavity (3a) with a second opening, the second filter part (3) is arranged in the third cavity (1c), and the second opening faces the second cavity (1b).

8. The aluminum electrolytic sweetening recovery canister of claim 7, wherein, The tank body (1) is internally provided with a second partition plate (16) for separating the second cavity (1b) and the third cavity (1c), the second partition plate (16) is provided with a second gap (16a) for communicating the second cavity (1b) and the third cavity (1c), and the second filter part (3) is detachably fixed on the second partition plate (16).

9. The aluminum electrolytic sweetening recovery canister of claim 8, wherein, The side wall end of the second filter part (3) forming the second opening extends radially outward, and forms a limiting part (31) arranged on the side of the second partition plate (16) facing the second cavity (1b).

10. The aluminum electrolytic sweetening recovery canister of claim 9, wherein, The second partition plate (16) is formed with a stepped portion (16b) extending in the circumferential direction of the second notch (16a), and the portion of the limiting portion (31) is in contact with the stepped portion (16b).

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