Circulating filtering device for vertical oxidation line hole sealing groove

Abstract

The utility model discloses a circulating filtering device for a vertical oxidation line hole sealing groove. The circulating filtering device comprises the hole sealing groove, a drainage valve and a drainage pipe. The hole sealing device further comprises a sinking flow filtering device which is used for treating settled impurities sinking in hole sealing groove liquid in a sinking flow filtering mode. The overflow filtering device is used for treating suspended impurities suspended in the hole sealing tank liquid in an overflow filtering manner; according to the utility model, a double-circulation filtering system in which the sinking flow filtering device is matched with the overflow filtering device is arranged, so that sunk sediment impurities and suspended impurities in the hole sealing bath solution can be filtered out, the structure is simple, the filtered bath solution is clear and not turbid, the service life of the bath solution is long, and the produced product is free from dusting phenomenon.

Description

Technical Field

[0001] The utility model relates to the field of vertical oxidation line sealing tanks, in particular to a set of circulating filtering devices for vertical oxidation line sealing tanks. Background Art

[0002] In the field of sealing tanks of vertical oxidation lines, aluminum ions are brought into the sealing tanks, and the aluminum ions will react with the chelating agent in the tank liquid to produce solid matter, causing the tank liquid to become turbid. At the same time, the nickel in the nickel-containing sealing agent will also undergo hydrolysis reaction, resulting in turbidity. Therefore, the turbidity problem of the sealing tanks of vertical oxidation lines has always been a pain point in the industry.

[0003] In the industry, sealing tanks all use the overflow filtration method. In this method, the filter removes the turbidity carried by the overflow, which is a minority, while the majority of the turbidity remains in the sinking state.

[0004] The above description can be demonstrated by the following method: after scooping out the turbid liquid from the beaker and letting it stand, it can be observed that the turbidity has settled and the liquid has become clear.

[0005] Therefore, the sealing tank liquid in the vertical oxidation line industry is currently basically in a turbid state. Summary of the Invention

[0006] The utility model aims to solve one of the technical problems existing in the prior art.

[0007] The present application provides a circulating filtration device for a sealing tank of a vertical oxidation line, comprising:

[0008] Sealing trough, drain valve, drain pipe;

[0009] Also includes:

[0010] A sedimentation filtration device, which processes the sedimentation debris in the sealing tank liquid by sedimentation filtration;

[0011] The overflow filtration device processes suspended debris in the sealing tank liquid through overflow filtration.

[0012] The sedimentation filtration device includes:

[0013] A sinking filter structure for filtering the sealing tank liquid that sinks out of the sealing tank;

[0014] A sinking flow pipeline, which is used to form a circulation loop with the bottom tank liquid of the sealing tank and the sinking flow filtration structure;

[0015] A control valve No. 1 is connected to the bottom tank liquid of the sealing tank through the sinking flow pipeline.

[0016] The sinking flow filtration structure includes:

[0017] a sinking flow chemical pump, which is connected to the first control valve through the sinking flow pipeline;

[0018] A sinking flow filter, which is connected to the sinking flow chemical pump through the sinking flow pipeline;

[0019] Among them, a No. 1 manual valve is provided between the sinking flow chemical pump and the sinking flow filter, and a No. 2 manual valve is provided between the sinking flow filter and the sealing tank.

[0020] The starting end of the sinking flow pipeline is arranged at the bottom end of the sealing tank, and the end thereof extends into the tank liquid along the tank wall of the sealing tank. The pipe exposed above the tank liquid is provided with holes to prevent the tank liquid from being sucked back.

[0021] Overflow filtration device includes:

[0022] a buffer structure for buffering the sealing tank liquid overflowing from the sealing tank;

[0023] an overflow filtering structure for filtering the sealing tank liquid overflowing from the sealing tank;

[0024] An overflow pipeline, which is used to form a circulation loop with the sealing tank, the buffer structure, and the overflow filter structure;

[0025] The cache structure includes:

[0026] An overflow groove of the sealing groove is provided at the top of one side groove surface of the sealing groove, and the overflow groove of the sealing groove is lower than the remaining groove surface of the sealing groove;

[0027] A sealing tank overflow collecting hopper is provided at the top edge of the sealing tank and is connected to the sealing tank overflow ditch;

[0028] A second control valve is connected to the overflow collection bucket of the sealing tank through the overflow pipeline;

[0029] The auxiliary tank is connected to the second control valve through the overflow pipeline.

[0030] Wherein, the upper surface height of the auxiliary groove is higher than the groove surface height of the overflow groove of the sealing groove.

[0031] The overflow filtration structure includes:

[0032] an overflow chemical pump, which is connected to the auxiliary tank through the overflow pipeline;

[0033] an overflow filter, which is connected to the overflow chemical pump through the overflow pipeline;

[0034] Among them, a No. 3 manual valve is provided between the overflow chemical pump and the overflow filter, and a No. 4 manual valve is provided between the overflow filter and the sealing tank.

[0035] The starting end of the overflow pipeline is connected to the overflow collecting bucket of the sealing tank, and the end thereof is arranged at the bottom end of the sealing tank.

[0036] The overflow filtration device also includes:

[0037] A maintenance pipeline, one end of which is arranged between the overflow chemical pump and the No. 3 manual valve, and the other end of which is arranged between the No. 4 manual valve and the sealing tank;

[0038] A No. 5 manual valve is provided on the maintenance pipeline.

[0039] The flow rate of the downflow filter is smaller than the flow rate of the overflow filter.

[0040] The beneficial effects of the utility model are as follows:

[0041] By setting up a double-circulation filtration system that cooperates with a sedimentation filtration device and an overflow filtration device, the settled debris and suspended debris in the sealing tank liquid can be filtered out. The structure is simple, the tank liquid after filtration is clear and has no turbidity, the tank liquid has a long service life, and the products produced do not have dusting phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a structural schematic diagram of a circulating filtration device for a sealing tank of a vertical oxidation line in an embodiment of the present application.

[0043] Reference numerals

[0044] 1-sealing tank, 2-drain valve, 3-drain pipe, 4-sinking filter device, 41-sinking filter structure, 411-sinking chemical pump, 412-sinking filter, 42-sinking pipeline, 43-No. 1 control valve, 5-overflow filter device, 51-cache structure, 511-sealing tank overflow ditch, 512-sealing tank overflow collection bucket, 513-No. 2 control valve, 514-auxiliary tank, 52-overflow filter structure, 521-overflow chemical pump, 522-overflow filter, 53-overflow pipeline, 54-maintenance pipeline, 61-No. 1 manual valve, 62-No. 2 manual valve, 63-No. 3 manual valve, 64-No. 4 manual valve, 65-No. 5 manual valve. DETAILED DESCRIPTION

[0045] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0046] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0047] In the following, in conjunction with the accompanying drawings, a circulating filtration device for a vertical oxidation line sealing tank provided in an embodiment of the present application is described in detail through specific embodiments and application scenarios.

[0048] Example 1:

[0049] like Figure 1 As shown, an embodiment of the present application provides a circulating filtration device for a sealing tank of a vertical oxidation line, including a sealing tank 1, a drain valve 2, and a drain pipe 3; it also includes: a sedimentation filtration device 4, which uses sedimentation filtration to treat precipitated debris in the sealing tank liquid; and an overflow filtration device 5, which uses overflow filtration to treat suspended debris in the sealing tank liquid.

[0050] Furthermore, the sedimentation filtration device 4 includes a sedimentation filtration structure 41, which is used to filter the sealing tank liquid that flows out of the sealing tank 1; a sedimentation pipeline 42, which is used to form a circulation loop with the bottom tank liquid of the sealing tank 1 and the sedimentation filtration structure 41; and a No. 1 control valve 43, which is connected to the bottom tank liquid of the sealing tank 1 through the sedimentation pipeline 42.

[0051] Furthermore, the sinking flow filtration structure 41 includes: a sinking flow chemical pump 411, which is connected to the No. 1 control valve 43 through the sinking flow pipeline 42; a sinking flow filter 412, which is connected to the sinking flow chemical pump 411 through the sinking flow pipeline 42; wherein, a No. 1 manual valve 61 is provided between the sinking flow chemical pump 411 and the sinking flow filter 412, and a No. 2 manual valve 62 is provided between the sinking flow filter 412 and the sealing tank 1.

[0052] Furthermore, the starting end of the sinking flow pipe 42 is set at the bottom end of the sealing tank 1, and the end thereof extends into the tank liquid along the tank wall of the sealing tank 1. The pipe exposed above the tank liquid is provided with a hole to prevent the tank liquid from being sucked back.

[0053] In this embodiment of the present application, due to the above-mentioned structure, one end of the drain valve 2 is connected between the No. 1 control valve 43 and the sinking chemical pump 411, and the other end is connected to the drain pipe 3. The tank liquid in the sealing tank 1 can be discharged into the sewage treatment system through the No. 1 control valve 43, the drain valve 2, and the drain pipe 3 in sequence;

[0054] The tank liquid in the sealing tank 1 passes through the sinking pipe 42 in sequence through the No. 1 control valve 43, the sinking chemical pump 411, the No. 1 manual valve 61, the sinking filter 412, and the No. 2 manual valve 62, and finally returns to the sealing tank 1. In this process, the No. 1 control valve 43 plays the role of a master switch in the sinking filter device 4. After the No. 1 control valve 43 is opened, the sinking chemical pump 411 can be used to extract the tank liquid to be filtered at the bottom of the sealing tank 1, so that the tank liquid flows in the sinking pipe 42 at a certain flow rate. When passing through the sinking filter 412, the sinking filter 412 will filter out impurities in the tank liquid that cannot pass through the filter, making the tank liquid clearer. The No. 1 manual valve 61 and the No. 2 manual valve 62 can adjust the tank liquid flow rate. The No. 1 control valve 43, the No. 1 manual valve 61 and the No. 2 manual valve 62 all use manual turbine butterfly valves, and the sinking filter 412 uses a 5μm wire-wound filter.

[0055] The starting end of the sinking flow pipe 42 is set at the bottom end of the sealing tank 1, and the end thereof extends into the tank liquid along the tank wall of the sealing tank 1. The pipe exposed above the tank liquid is provided with a hole to prevent the tank liquid from being sucked back.

[0056] Example 2:

[0057] like Figure 1 As shown, in this embodiment, in addition to the structural features of the previous embodiment, the overflow filtering device 5 includes a buffer structure 51 for buffering the sealing tank liquid overflowing from the sealing tank 1; an overflow filtering structure 52 for filtering the sealing tank liquid overflowing from the sealing tank 1; and an overflow pipeline 53 for forming a circulation loop with the sealing tank 1, the buffer structure 51, and the overflow filtering structure 52.

[0058] Furthermore, the buffer structure 51 includes a sealing tank overflow ditch 511, which is located at the top of one side of the sealing tank 1 and is lower than the rest of the sealing tank 1; a sealing tank overflow collection hopper 512, which is located at the top edge of the sealing tank 1 and communicates with the sealing tank overflow ditch 511; a second control valve 513, which is connected to the sealing tank overflow collection hopper 512 via the overflow pipe 53; and an auxiliary tank 514, which is connected to the second control valve 513 via the overflow pipe 53. The upper surface of the auxiliary tank 514 is higher than the tank surface of the sealing tank overflow ditch 511.

[0059] Furthermore, the overflow filtering structure 52 includes an overflow chemical pump 521, which is connected to the auxiliary tank 514 through the overflow pipe 53; an overflow filter 522, which is connected to the overflow chemical pump 521 through the overflow pipe 53; wherein, a No. 3 manual valve 63 is provided between the overflow chemical pump 521 and the overflow filter 522, and a No. 4 manual valve 64 is provided between the overflow filter 522 and the sealing tank 1.

[0060] Furthermore, the starting end of the overflow pipe 53 is connected to the sealing tank overflow collection bucket 512, and the end thereof is arranged at the bottom end of the sealing tank 1.

[0061] Furthermore, the overflow filtration device 5 also includes a maintenance pipeline 54, one end of which is arranged between the overflow chemical pump 521 and the No. 3 manual valve 63, and the other end is arranged between the No. 4 manual valve 64 and the sealing tank 1; the No. 5 manual valve 65 is arranged on the maintenance pipeline 54.

[0062] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the tank liquid in the sealing tank 1 passes through the overflow pipe 53 in sequence through the sealing tank overflow groove 511, the sealing tank overflow collecting bucket 512, the No. 2 control valve 513, the auxiliary tank 514, the overflow chemical pump 521, the No. 3 manual valve 63, the overflow filter 522, the No. 4 manual valve 64, and finally returns to the sealing tank 1. In this process, the No. 2 control valve 513 plays the role of a master switch in the overflow filtration device 5. The sealing tank overflow groove 511 is set at 8 cm lower than the tank surface on one side of the sealing tank 1. The tank liquid at the top of the sealing tank 1 passes ... The tank overflow collection bucket 512 and the No. 2 control valve 513 are buffered in the auxiliary tank 514, thereby effectively preventing the overflow chemical pump 521 from being burned due to the air being drawn into the overflow chemical pump 521 during the overflow of the sealing tank liquid through the sealing tank overflow collection bucket 512. The overflow chemical pump 521 can pump out the tank liquid in the auxiliary tank 514 and make the tank liquid flow in the overflow pipe 53 at a certain flow rate. When passing through the overflow filter 522, the overflow filter 522 will filter out impurities in the tank liquid that cannot pass through the filter, making the tank liquid clearer. The No. 3 manual valve 63 and the No. 4 manual valve 64 can adjust the tank liquid flow rate.

[0063] The upper surface of the auxiliary groove 514 is 10-20 cm higher than the groove surface of the overflow groove 511 of the sealing groove, which can prevent the overflow of the tank liquid from overflowing from the auxiliary groove 514.

[0064] When the overflow filter 522 needs to be replaced, the No. 3 manual valve 63 is closed and the No. 5 manual valve 65 is opened, so that the tank liquid can return to the sealing tank 1 through the maintenance pipeline 54. The tank liquid does not pass through the overflow filter 522, thereby facilitating the cleaning, maintenance, repair and replacement of the overflow filter 522.

[0065] The No. 2 control valve 513, No. 3 manual valve 63, No. 4 manual valve 64 and No. 5 manual valve 65 all use manual turbine butterfly valves, and the overflow filter 522 uses a 5μm wire-wound filter;

[0066] The starting end of the overflow pipe 53 is connected to the sealing tank overflow collecting bucket 512, and the end thereof is arranged at the bottom end of the sealing tank 1, so that the tank liquid flows out from the top and returns to the bottom, thereby ensuring the stability of the tank surface liquid level and the uniformity of the tank liquid from top to bottom.

[0067] Example 3:

[0068] like Figure 1 As shown, in this embodiment, in addition to including the structural features of the previous embodiment, the flow rate of the downflow filter 412 is smaller than the flow rate of the overflow filter 522.

[0069] In this embodiment of the present application, due to the adoption of the above-mentioned structure, in the design of the circulation filtration system of the sealing tank of the vertical oxidation line, the filter can be reasonably configured according to different situations. For the suspended impurities in the tank liquid, due to their small particle size, in order to ensure a good filtration effect, it is necessary to increase the flow rate through the overflow filter 522. The volume of the sealing tank 1 is 130 cubic meters, and the tank liquid is required to circulate once in 1-2 hours. After calculation and matching with the flow rate, a 100t / h overflow filter 522 is selected. This allows the suspended impurities to pass through the overflow filter 522 in a shorter time, and the small-particle suspended impurities are removed more timely and effectively. As for the large-particle precipitated impurities at the bottom of the tank liquid, they are easily intercepted and the number of small-particle suspended impurities is small. Therefore, the circulation volume does not need to be as strict as that of small-particle suspended particles, so it can be set to 1 cycle in 4-5 hours. The selection of a 30t / h sedimentation filter 412 can meet the filtration requirements of the large-particle precipitated impurities at the bottom, thereby ensuring the filtration effect while optimizing the configuration and operation efficiency of the entire circulation filtration system.

[0070] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0071] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A circulating filtration device for a sealing tank of a vertical oxidation line, comprising a sealing tank (1), a drain valve (2), and a drain pipe (3), characterized in that: Also includes: A sedimentation filtration device (4) processes sedimented debris in the sealing tank liquid by sedimentation filtration; An overflow filtration device (5) processes suspended debris in the sealing tank liquid by overflow filtration; The sinking filter device (4) comprises: A sinking filter structure (41) for filtering the sealing tank liquid that sinks out of the sealing tank (1); A sinking flow pipeline (42) is used to form a circulation loop with the bottom tank liquid of the sealing tank (1) and the sinking flow filtering structure (41); A control valve (43) is connected to the bottom tank liquid of the sealing tank (1) through the sinking flow pipeline (42); The overflow filtering device (5) comprises: a buffer structure (51) for buffering the sealing tank liquid overflowing from the sealing tank (1); an overflow filtering structure (52) for filtering the sealing tank liquid overflowing from the sealing tank (1); The overflow pipeline (53) is used to form a circulation loop with the sealing tank (1), the buffer structure (51), and the overflow filtering structure (52).

2. The circulating filtration device for sealing tanks of a vertical oxidation line according to claim 1, characterized in that: The sinking filter structure (41) comprises: a sinking flow chemical pump (411), which is connected to the first control valve (43) via the sinking flow pipeline (42); A sinking filter (412) is connected to the sinking chemical pump (411) via the sinking pipeline (42); A first manual valve (61) is provided between the sinking chemical pump (411) and the sinking filter (412), and a second manual valve (62) is provided between the sinking filter (412) and the sealing tank (1).

3. The circulating filtration device for sealing tanks of a vertical oxidation line according to claim 1, characterized in that: The starting end of the sinking flow pipe (42) is arranged at the bottom end of the sealing tank (1), and the end thereof extends into the tank liquid along the tank wall of the sealing tank (1). The pipe exposed above the tank liquid is provided with a hole to prevent the tank liquid from being sucked back.

4. The circulating filtration device for sealing tanks of a vertical oxidation line according to claim 2, characterized in that: The cache structure (51) includes: A sealing groove overflow groove (511) is provided at the top of a groove surface on one side of the sealing groove (1), and the sealing groove overflow groove (511) is lower than the remaining groove surface of the sealing groove (1); A sealing tank overflow collecting hopper (512), which is arranged at the top edge of the sealing tank (1) and is connected to the sealing tank overflow ditch (511); A second control valve (513) is connected to the sealing tank overflow collection bucket (512) through the overflow pipeline (53); An auxiliary tank (514) is connected to the second control valve (513) via the overflow pipe (53); The height of the upper surface of the auxiliary groove (514) is higher than the groove surface height of the overflow groove (511) of the sealing groove.

5. The circulating filtration device for sealing tanks of a vertical oxidation line according to claim 4, characterized in that: The overflow filtration structure (52) comprises: an overflow chemical pump (521), which is connected to the auxiliary tank (514) via the overflow pipeline (53); An overflow filter (522) is connected to the overflow chemical pump (521) via the overflow pipeline (53); A No. 3 manual valve (63) is provided between the overflow chemical pump (521) and the overflow filter (522), and a No. 4 manual valve (64) is provided between the overflow filter (522) and the sealing tank (1).

6. The circulating filtration device for sealing tanks of a vertical oxidation line according to claim 4, characterized in that: The starting end of the overflow pipeline (53) is connected to the sealing tank overflow collection bucket (512), and the end thereof is arranged at the bottom end of the sealing tank (1).

7. The circulating filtration device for sealing tanks of a vertical oxidation line according to claim 5, characterized in that: The overflow filtering device (5) further comprises: A maintenance pipeline (54), one end of which is arranged between the overflow chemical pump (521) and the No. 3 manual valve (63), and the other end of which is arranged between the No. 4 manual valve (64) and the sealing tank (1); A fifth manual valve (65) is provided on the maintenance pipeline (54).

8. The circulating filtration device for sealing tanks of a vertical oxidation line according to claim 5, characterized in that: The flow rate of the downflow filter (412) is smaller than the flow rate of the overflow filter (522).

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