Coarse filtration device for waste acid solution

Abstract

The utility model belongs to the technical field of waste liquid treatment, and particularly relates to a waste acid liquid coarse filtering device which comprises a tank body, the top of the tank body is rotationally connected with a cover plate, and two first sliding grooves with openings in one sides are formed in the inner wall of the left side of the tank body. Waste acid liquor from a leaching tower automatically flows into the tank body through the acid inlet valve and is filtered by the second filter screen, impurities in the acid liquor are coarsely filtered by the filter holes in the second filter screen, then the cover plate is opened, the first T-shaped rod is pulled to be separated from the clamping groove, and the second filter screen and the first filter screen are taken out by pulling the pull ring. The impurities on the first filter screen are cleaned, the first filter screen and the second filter screen are washed with water and then are put back for continuous use, the impurities are intercepted, the impurities are prevented from sinking to the bottom, cleaning is easy, blocking is not prone to occurring, manual cleaning is reduced, the production cost is reduced, blocking of the emptying valve is avoided, the coarse filtering effect is achieved, the cleaning time is shortened, and the production efficiency is improved. And the environmental protection risk is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste liquid treatment technical field, concretely is a waste acid liquid rough filter device. BACKGROUND

[0002] In the production process of the steel plant cold rolling pickling line, the treatment of waste acid liquid is a vital link. Especially the waste acid generated in the pickling process, these waste acids not only contain various metal ions and acidic substances, but also often carry a large amount of pipeline precipitates, rust, oil stains and other sundries that may be brought in when the iron edge is added. The existence of these impurities poses a serious challenge to the subsequent treatment and reuse of waste acid. In order to effectively treat these waste acid liquids, the usual practice is to send them to a regeneration unit for regeneration treatment. In the regeneration unit, the silicon removal system is a key component, which is responsible for removing silicon elements from the waste acid to ensure the quality of the waste acid and the reuse effect. However, before the waste acid enters the silicon removal system, it needs to go through a pretreatment step, which is to react with the iron edge through the immersion tower. The main function of the immersion tower is to allow the waste acid to fully contact and chemically react with the iron edge, thereby further removing impurities and harmful substances from the waste acid. However, although the immersion tower can purify the waste acid to some extent, some small impurities and particles will still remain in the waste acid liquid after treatment by the immersion tower.

[0003] In the prior art, in order to remove these residual impurities and particles, a filter is usually provided after the immersion tower. However, traditional filters, such as flat hole plate filters, although can play a filtering role to some extent, but the effect is not ideal. Specifically, the flat hole plate filter has a relatively large filter hole diameter, which cannot effectively trap all the small impurities and particles. At the same time, due to the flowability of the waste acid liquid and the sedimentation of the impurity particles, part of the impurities will gradually deposit in the pipeline bottom during the filtering process, forming difficult-to-clean deposits. These deposits not only reduce the filtering efficiency of the filter, but also cause blockage and wear of the pipeline system, and in severe cases, it can even affect the normal operation of the entire acid regeneration unit. Therefore, we propose a waste acid liquid rough filter device to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a waste acid liquid rough filter device, which solves the problems raised in the above background technology.

[0006] (II) Technical scheme

[0007] The utility model discloses a waste acid liquid rough filter device to solve the above problems.

[0008] A waste acid liquid rough filtering device, including the tank body, the top of the tank body is rotatably connected with the cover plate, the left side inner wall of the tank body is provided with two first sliding grooves with one side being open, the first sliding groove is slidably connected with a limiting block, the bottom of the two limiting blocks is fixedly connected with a first filter screen, the front side inner wall and the rear side inner wall of the tank body are provided with a second sliding groove with one side being open, the second sliding groove is slidably connected with a second filter screen, the bottom of the second filter screen is fixedly connected with the top of the first filter screen, the first filter screen and the second filter screen are L-shaped, the top of the second filter screen is welded with a pull ring, the front side of the second filter screen is provided with a clamping groove, the front side of the tank body is welded with a U-shaped block, the U-shaped block is provided with a first T-shaped rod, the first T-shaped rod is welded with a limiting ring, the first T-shaped rod is clamped with the clamping groove, the limiting ring is welded with a first spring between one side and the front side inner wall of the U-shaped block, and the first spring is movably sleeved on the first T-shaped rod.

[0009] Further, the front side inner wall of the U-shaped block is provided with a guide hole, and the U-shaped block is slidably connected with the first T-shaped rod through the guide hole.

[0010] Further, the front side of the cover plate is welded with a connecting block, and the both sides of the connecting block are provided with fixing grooves.

[0011] Further, the front side of the tank body is fixedly connected with two rectangular blocks, and one side of the rectangular block is welded with a second T-shaped rod.

[0012] Further, the second T-shaped rod is slidably connected with an L-shaped clamping block, the L-shaped clamping block is clamped with the corresponding fixing groove, and the second spring is movably sleeved on the corresponding second T-shaped rod.

[0013] Further, the left side of the tank body is provided with a full-flow valve and an acid inlet valve, the right side of the tank body is provided with an acid outlet valve, the bottom of the tank body is provided with a tapered portion, the bottom of the tapered portion is provided with a vent valve, and the first filter screen and the second filter screen are made of PP material.

[0014] (Three) beneficial effects

[0015] Compared with the prior art, the waste acid liquid rough filtering device has the following advantages

[0016] Beneficial effects:

[0017] The utility model discloses, through first filter screen and second filter screen divide the jar body into two parts, left side is waste liquid area, right side is clear liquid area, and the waste acid liquid that the dissolving tower comes out is self -flowing to the jar body through the acid inlet valve, filters after second filter screen, and the impurity in the acid liquid is coarsely filtered through the filter hole on second filter screen, stays in waste liquid area, and the acid liquid after filtering enters clear liquid area, and flows to the storage tank through the acid outlet valve, when cleaning, opens the vent valve, and the acid liquid in the jar body is emptied, and then the cover plate is opened, and then the first T -shaped rod is separated from the clamping groove, and the pull ring is pulled, and the second filter screen and first filter screen are taken out, and the sundries on the first filter screen is cleaned, and after the first filter screen and second filter screen are washed with water, put back and continue to use, through the sundries are intercepted, avoid sundries to sink, easy to clean, not easy to block, and reduce manual cleaning, reduce production cost, avoid the blockage of vent valve, reach the effect of coarse filtration, and shorten the cleaning time, avoid environmental risk. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0019] Figure 2 It is the three-dimensional structure schematic diagram of the utility model's inclination;

[0020] Figure 3 It is the three-dimensional structure schematic diagram of the utility model's cover plate hiding rear;

[0021] Figure 4 It is the three-dimensional structure schematic diagram of the utility model's first filter screen and second filter screen connection;

[0022] Figure 5 It is the three-dimensional structure schematic diagram of the utility model's U -shaped block, limit ring and first T -shaped rod connection;

[0023] Figure 6 It is the three-dimensional structure schematic diagram of the utility model's L -shaped clamping block, second spring and connecting block connection.

[0024] In the drawing: 1, jar body;2, cover plate;3, conical part;4, first sliding slot;5, limit block;6, first filter screen;7, second sliding slot;8, second filter screen;9, pull ring;10, clamping groove;11, U -shaped block;12, first T -shaped rod;13, limit ring;14, first spring;15, connecting block;16, fixed slot;17, rectangular block;18, second T -shaped rod;19, L -shaped clamping block;20, second spring;21, full -flow valve;22, acid inlet valve;23, acid outlet valve;24, vent valve. DETAILED DESCRIPTION

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example

[0027] like Figures 1-6 As shown, an embodiment of this utility model discloses a coarse filtration device for waste acid, comprising a tank 1, a cover plate 2 rotatably connected to the top of the tank 1, two first sliding grooves 4 with one side open on the inner wall of the left side of the tank 1, limit blocks 5 slidably connected to the first sliding grooves 4, and the same first filter screen 6 fixedly connected to the bottom of the two limit blocks 5, and second sliding grooves 7 with one side open on both the inner wall of the front and rear sides of the tank 1, with second filter screens 8 slidably connected to the second sliding grooves 7, the bottom of the second filter screen 8 being fixedly connected to the top of the first filter screen 6, the first filter screen 6 and the second filter screen 8 being L-shaped, and a pull ring 9 welded to the top of the second filter screen 8, the front of the second filter screen 8... A slot 10 is provided on the side, and a U-shaped block 11 is welded to the front side of the tank body 1. A first T-shaped rod 12 is provided on the U-shaped block 11, and a limiting ring 13 is welded to the first T-shaped rod 12. The first T-shaped rod 12 is engaged with the slot 10. A first spring 14 is welded between one side of the limiting ring 13 and the inner wall of the front side of the U-shaped block 11. The first spring 14 is movably sleeved on the first T-shaped rod 12. Some impurities fall on the top of the first filter screen 6. During the cleaning process, the impurities that fall on the top will also be picked up at the same time, so as to prevent impurities from settling and accumulating at the bottom of the tank body 1 and clogging the pipes or equipment. It is not necessary to manually clean the inside of the tank body 1, shorten the cleaning time, reduce labor costs, and lower production costs.

[0028] In some embodiments, a guide hole is provided on the inner front wall of the U-shaped block 11, and the U-shaped block 11 is slidably connected to the first T-shaped rod 12 through the guide hole. The U-shaped block 11 serves as a support.

[0029] In some embodiments, a connecting block 15 is welded to the front side of the cover plate 2, and a fixing groove 16 is provided on both sides of the connecting block 15. The connecting block 15 serves as a connection.

[0030] In some embodiments, two rectangular blocks 17 are fixedly connected to the front side of the tank body 1, and a second T-shaped rod 18 is welded to one side of the rectangular blocks 17.

[0031] In some embodiments, the second T-shaped rod 18 is slidably connected with an L-shaped clamping block 19, the L-shaped clamping block 19 is clamped with the corresponding fixed groove 16, and the second spring 20 is welded between one side of the L-shaped clamping block 19 and one side of the corresponding rectangular block 17. The second spring 20 is movably sleeved on the corresponding second T-shaped rod 18. The second T-shaped rod 18 is provided, which plays a positioning role.

[0032] In some embodiments, the left side of the tank body 1 is provided with a full-flow valve 21 and an acid inlet valve 22, the right side of the tank body 1 is provided with an acid outlet valve 23, the bottom of the tank body 1 is provided with a tapered portion 3, the bottom of the tapered portion 3 is provided with a vent valve 24, and the first filter screen 6 and the second filter screen 8 are both made of PP material. By using PP material, it is very light and easy to take out.

[0033] The working principle or structural principle is as follows: when in use, the first filter screen 6 and the second filter screen 8 divide the tank body 1 into two parts, the left side is a waste liquid area, and the right side is a clear liquid area. The acid inlet valve 22 is connected with the previous process, the full-flow valve 21 is connected with a waste acid liquid storage tank, the acid outlet valve 23 is connected with a filtered acid liquid storage tank, the waste acid liquid from the immersion tower flows into the tank body 1 through the acid inlet valve 22, and after being filtered by the second filter screen 8, the impurities in the acid liquid are coarsely filtered through the filter holes on the second filter screen 8 and stay in the waste liquid area. The filtered acid liquid enters the clear liquid area and flows to the storage tank through the acid outlet valve 23. When cleaning, open the vent valve 24 to empty the acid liquid in the tank body 1, move the L-shaped clamping block 19, the L-shaped clamping block 19 slides on the corresponding second T-shaped rod 18 and compresses the second spring 20, so that the L-shaped clamping block 19 is separated from the corresponding fixed groove 16, then rotate the cover plate 2 to open it, then pull the first T-shaped rod 12, the first T-shaped rod 12 compresses the first spring 14 through the limiting ring 13, so that the first T-shaped rod 12 is separated from the clamping groove 10, then pull the pull ring 9, the pull ring 9 drives the second filter screen 8 to slide on the second sliding groove 7, at the same time, the second filter screen 8 drives the first filter screen 6 to move, the first filter screen 6 drives the limiting block 5 to slide on the corresponding first sliding groove 4 and separates from the tank body 1, so as to take out the first filter screen 6 and the second filter screen 8. Clean the impurities on the first filter screen 6, and then put back the first filter screen 6 and the second filter screen 8 after washing them with water to continue using. By trapping impurities, it avoids that the impurities sink to the bottom, is easy to clean, is not easy to block, reduces manual cleaning, reduces production cost, avoids blockage of the vent valve 24, and the setting of the full-flow valve 21 avoids overflow of the acid liquid from the top of the tank body 1, which not only achieves coarse filtering effect, but also shortens the cleaning time and avoids environmental risks.

[0034] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A waste acid liquid rough filtering device comprising a tank body (1), characterized in that: The top of the tank body (1) is rotationally connected with a cover plate (2), two first sliding grooves (4) with one side being an opening are arranged on the left side inner wall of the tank body (1), the first sliding grooves (4) are slidably connected with limiting blocks (5), the bottom of the two limiting blocks (5) is fixedly connected with a same first filter screen (6), a second sliding groove (7) with one side being an opening is arranged on the front side inner wall and the rear side inner wall of the tank body (1), the second sliding groove (7) is slidably connected with a second filter screen (8), the bottom of the second filter screen (8) is fixedly connected with the top of the first filter screen (6), the first filter screen (6) and the second filter screen (8) are L-shaped, a pull ring (9) is welded on the top of the second filter screen (8), a clamping groove (10) is arranged on the front side of the second filter screen (8), a U-shaped block (11) is welded on the front side of the tank body (1), a first T-shaped rod (12) is arranged on the U-shaped block (11), a limiting ring (13) is welded on the first T-shaped rod (12), the first T-shaped rod (12) is clamped with the clamping groove (10), a first spring (14) is welded between the limiting ring (13) and the front side inner wall of the U-shaped block (11), and the first spring (14) is movably sleeved on the first T-shaped rod (12).

2. The waste acid liquid rough filtering device according to claim 1, characterized in that: A guide hole is arranged on the front side inner wall of the U-shaped block (11), and the U-shaped block (11) is slidably connected with the first T-shaped rod (12) through the guide hole.

3. The waste acid liquid rough filtering device according to claim 1, characterized in that: A connecting block (15) is welded on the front side of the cover plate (2), and a fixing groove (16) is arranged on both sides of the connecting block (15).

4. The waste acid liquid rough filtering device according to claim 3, characterized in that: Two rectangular blocks (17) are fixedly connected on the front side of the tank body (1), and a second T-shaped rod (18) is welded on one side of the rectangular block (17).

5. The waste acid liquid rough filtering device according to claim 4, characterized in that: An L-shaped clamping block (19) is slidably connected on the second T-shaped rod (18), the L-shaped clamping block (19) is clamped with the corresponding fixing groove (16), a second spring (20) is welded between one side of the L-shaped clamping block (19) and one side of the corresponding rectangular block (17), and the second spring (20) is movably sleeved on the corresponding second T-shaped rod (18).

6. The waste acid liquid rough filtering device according to claim 1, characterized in that: A full-flow valve (21) and an acid inlet valve (22) are arranged on the left side of the tank body (1), an acid outlet valve (23) is arranged on the right side of the tank body (1), the bottom of the tank body (1) is arranged as a tapered portion (3), a vent valve (24) is arranged on the bottom of the tapered portion (3), and the first filter screen (6) and the second filter screen (8) are made of PP material.

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