A kind of plate-and-frame filter press filtrate muddy processing device

Abstract

The utility model discloses a kind of filter liquor muddy handling device of plate-and-frame filter press, it is related to filter liquor muddy handling technical field of plate-and-frame filter press, including overflow assembly, muddy liquid collection assembly, plate-and-frame filter press is equipped with liquid outlet pipe;Overflow assembly includes overflow tank, intermediate tank, overflow pipe, filtrate collection tank;Muddy liquid collection assembly includes muddy liquid pipe, muddy liquid collection tank, plugging piece, return liquid pipe, return liquid pump;After overflow tank receives the filtrate discharged by liquid outlet pipe and is full, overflow to intermediate tank again, enter filtrate collection tank by overflow pipe, since intermediate tank, overflow tank are all open state, whether there is muddy phenomenon of filtrate can be viewed in real time, after the appearance of muddy of filtrate, first enter overflow tank and deposit, then enter intermediate tank and deposit, avoid the filtrate of muddy to enter filtrate collection tank directly, simultaneously set muddy liquid pipe, after the appearance of muddy phenomenon of filtrate, muddy liquid pipe can be opened in time, and the filtrate of muddy is introduced into muddy liquid collection tank, avoid causing valuable metal loss and abrasion impeller.

Description

Technical Field

[0001] This utility model relates to the field of plate and frame filter press filtrate turbidity treatment technology, specifically to a plate and frame filter press filtrate turbidity treatment device. Background Technology

[0002] In the copper smelting process, dust collected by dust collection devices is used as raw material in production, thereby comprehensively recovering valuable metal elements from the dust.

[0003] After the flue gas is slurryed, it undergoes oxygen pressure leaching to leach valuable metals such as Cu and Zn into the solution. Iron powder is then added to displace the Cu from the solution. The resulting mixture is then subjected to plate and frame filtration for solid-liquid separation, allowing the recovery of valuable metals. Currently, in the plate and frame filtration process, the filtrate pipe is directly connected to the filtrate tank, and a closed turbidity escape pipe is installed on the filtrate pipe. The connection between the filtrate pipe and the turbidity escape pipe is controlled by a valve. If turbidity escape occurs during production, because the turbidity escape pipe is a closed pipe, the valve is only opened after the operator notices the turbidity. Due to the delayed response, the solution containing solid particles directly enters the filtrate tank, leading not only to a decrease in filtration efficiency and loss of valuable metals, but also to increased wear on the impeller of the solution transfer pump and blockage of the pipes due to the solid particles in the filtrate, ultimately causing equipment failure and hindering smooth production. Utility Model Content

[0004] The main purpose of this utility model is to provide a device for treating cloudy filtrate from a plate and frame filter press, which solves the problem that it is difficult to treat cloudy filtrate in a timely manner after it occurs in an existing plate and frame filter press, resulting in the entry of solution containing solid particles into the filtrate tank.

[0005] To achieve the above objectives, this utility model provides a device for treating turbidity in the filtrate of a plate and frame filter press, wherein the plate and frame filter press is equipped with a filtrate outlet pipe; comprising:

[0006] An overflow assembly includes an overflow trough connected to an outlet pipe and an intermediate trough connected to the overflow trough; the overflow trough is provided with a liquid storage chamber and an overflow port connected to the liquid storage chamber; the intermediate trough is provided with an overflow pipe; the plane at the top of the overflow pipe is lower than the plane at the overflow port, and a filtrate collection trough is provided at the end of the overflow pipe away from the intermediate trough.

[0007] The turbid liquid collection assembly includes a turbid liquid pipe communicating with a storage chamber and an intermediate tank, and a turbid liquid collection tank communicating with the turbid liquid pipe; the plane at the top of the turbid liquid pipe is lower than the plane at the overflow port, and a sealing component is provided on the turbid liquid pipe; a return liquid pipe communicating with a plate and frame filter press is provided on the turbid liquid collection tank; and a return liquid pump is provided on the return liquid pipe.

[0008] As a further improvement of this utility model, the liquid outlet pipe is inserted into the liquid storage cavity, and there is a gap between the liquid outlet pipe and the bottom end of the liquid storage cavity.

[0009] As a further improvement of this utility model, the interior of the intermediate tank is hollow to form a liquid passage cavity, and a partition is provided in the intermediate tank to separate the liquid passage cavity and form a liquid storage cavity; the height of the partition is less than the height of the intermediate tank.

[0010] As a further improvement of this utility model, the bottom end of the liquid storage cavity is lower than the end away from the partition plate, so that the bottom end of the liquid storage cavity is in an inclined state.

[0011] As a further improvement of this utility model, the overflow pipe is located at the end away from the partition, and the inner diameter of the overflow pipe is larger than the inner diameter of the outlet pipe.

[0012] As a further improvement of this utility model, the inner diameter of the turbid liquid tube is larger than the inner diameter of the outlet pipe; the sealing element includes a sealing plug disposed on the turbid liquid tube.

[0013] The beneficial effects of this utility model are reflected in:

[0014] The overflow tank first receives the filtrate discharged from the outlet pipe. After the overflow tank is full, the filtrate overflows into the intermediate tank and then enters the filtrate collection tank through the overflow pipe. Since both the intermediate tank and the overflow tank are open, it is possible to check in real time whether there is any turbidity in the filtrate. If turbidity occurs, the filtrate first enters the overflow tank for collection and sedimentation, and then enters the intermediate tank for sedimentation. This prevents the turbid filtrate from directly entering the filtrate collection tank. At the same time, the turbidity pipe can be opened in time to introduce the turbid filtrate into the turbidity collection tank after turbidity occurs, thus avoiding the loss of valuable metals and wear on the impeller. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a plate and frame filter press filtrate turbidity treatment device according to the present invention;

[0016] Explanation of reference numerals in the attached figures:

[0017] 1. Plate and frame filter press; 2. Discharge pipe; 3. Overflow tank; 4. Intermediate tank; 5. Storage chamber; 6. Overflow port; 7. Overflow pipe; 8. Filtrate collection tank; 9. Turbid liquid pipe; 10. Turbid liquid collection tank; 11. Sealing component; 12. Return pipe; 13. Return pump; 14. Liquid passage chamber; 15. Baffle plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are merely some, not all, of the embodiments of this utility model. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] In one embodiment, see Figure 1 The present invention relates to a plate and frame filter press filtrate turbidity treatment device, comprising an overflow component and a turbidity collection component.

[0020] The plate and frame filter press 1 is equipped with a liquid outlet pipe 2; the overflow assembly includes an overflow trough 3 connected to the liquid outlet pipe 2 and an intermediate trough 4 connected to the overflow trough 3. The overflow trough 3 is equipped with a liquid storage chamber 5 and an overflow port 6 connected to the liquid storage chamber 5. The intermediate trough 4 is equipped with an overflow pipe 7. The top plane of the overflow pipe 7 is lower than the plane of the overflow port 6. The end of the overflow pipe 7 away from the intermediate trough 4 is equipped with a filtrate collection tank 8; the turbid liquid collection assembly includes a turbid liquid pipe 9 connected to the liquid storage chamber 5 and the intermediate trough 4 and a turbid liquid collection tank 10 connected to the turbid liquid pipe 9. The top plane of the turbid liquid pipe 9 is lower than the plane of the overflow port 6. The turbid liquid pipe 9 is equipped with a sealing component 11. The turbid liquid collection tank 10 is equipped with a return liquid pipe 12 connected to the plate and frame filter press 1 and a return liquid pump 13 is equipped on the return liquid pipe 12.

[0021] Furthermore, the outlet pipe 2 is inserted into the liquid storage chamber 5, and there is a gap between the outlet pipe 2 and the bottom of the liquid storage chamber 5.

[0022] Preferably, the distance between the liquid outlet pipe 2 and the bottom end of the liquid storage chamber 5 is between 10cm and 20cm.

[0023] Furthermore, the interior of the intermediate tank 4 is hollow to form a liquid passage cavity 14. A partition 15 is provided inside the intermediate tank 4 to separate the liquid passage cavity 14 and form a liquid storage cavity 5. The height of the partition 15 is less than the height of the intermediate tank 4.

[0024] Preferably, the intermediate tank 4 is a hollow rectangular body with one end open, and the hollow interior of the intermediate tank 4 forms a liquid passage cavity 14 for storing the filtrate overflowing from the liquid storage cavity 5.

[0025] Preferably, an overflow port 6 is formed between the top of the partition 15 and the intermediate groove 4.

[0026] Since there are pipes installed below the plate and frame filter press, space needs to be left for the pipes when the intermediate trough 4 is actually installed. Therefore, the overflow trough 3 is located at both ends of the intermediate trough 4, so two sets of overflow troughs 3 are set up, and there is a gap between the two sets of overflow troughs 3 to form space for installing pipes.

[0027] It should be noted that, for the convenience of pipe installation, the intermediate groove 4 can be a U-shaped structure, and two sets of baffles 15 are provided in the intermediate groove 4 to form two sets of overflow grooves 3.

[0028] Furthermore, the bottom end of the liquid storage cavity 5 is lower than the end away from the partition 15 at the end near the partition 15, so that the bottom end of the liquid storage cavity 5 is in an inclined state.

[0029] Preferably, a wedge-shaped plate is welded to the bottom end of the liquid storage chamber 5.

[0030] Preferably, the outlet pipe 2 is located away from the partition 15 on the higher side of the bottom of the liquid storage chamber 5.

[0031] In the above configuration, the filtrate from the plate and frame filter press 1 enters the overflow tank 3 through the outlet pipe 2 and is stored in the storage chamber. As the amount of filtrate increases, the filtrate flows into the intermediate tank 4 along the upper end of the partition 15 and is located in the liquid passage chamber 14. When the filtrate becomes turbid, the filtrate carrying solid particles first enters the storage chamber 5. The filtrate flows along the bottom end of the storage chamber 5, and the particles begin to settle, reducing the amount of solid particles moving upward into the intermediate tank 4.

[0032] Furthermore, the overflow pipe 7 is located at the end away from the partition 15, and the inner diameter of the overflow pipe 7 is larger than the inner diameter of the outlet pipe 2.

[0033] Preferably, since two sets of outlet pipes 2 are provided, the inner diameter of the overflow pipe 7 is twice the inner diameter of the outlet pipe 2, so as to ensure that the drainage volume in the intermediate tank 4 is equal to the overflow volume in the storage cavity.

[0034] Furthermore, the inner diameter of the turbid liquid pipe 9 is larger than the inner diameter of the outlet pipe 2, and the sealing element 11 includes a sealing plug disposed on the turbid liquid pipe 9.

[0035] Preferably, the turbid liquid pipe 9 of the liquid storage chamber 5 is located near the liquid outlet pipe 2, and the turbid liquid pipe 9 in the intermediate tank 4 is located near the partition plate 15.

[0036] Preferably, the end cap is made of rubber and has an operating lever.

[0037] In the above setup, under normal conditions, the filtrate enters the storage chamber 5 from the outlet pipe 2 and flows into the intermediate tank 4 through the overflow port 6. As the amount of filtrate in the intermediate tank 4 increases, the filtrate flows into the filtrate collection tank 8 through the overflow pipe 7. When turbidity occurs, the filtrate first enters the storage chamber 5. As the filtrate is discharged, solid particles in the filtrate begin to settle in the storage chamber 5, and then flow into the intermediate tank 4 through the overflow port 6. Since both the overflow tank 3 and the intermediate tank 4 are open, workers can promptly detect turbidity and open the sealing plugs. After the sealing plugs are opened, the filtrate in the storage chamber 5 and the intermediate tank 4 is discharged into the turbidity collection tank 10 through the turbidity pipe, thereby preventing the presence of solids. The filtrate containing solid particles enters the filtrate collection tank 8 through the overflow pipe 7. Since the overflow pipe 7 is located far from the partition plate 15, the filtrate containing solid particles that flows into the collection tank through the overflow port 6 begins to settle simultaneously as it moves along the collection tank. The filtrate is discharged into the turbid liquid collection tank 10 by opening the turbid liquid pipe 9 in time, thus preventing solid particles from entering the filtrate collection tank 8. The filtrate that enters the turbid liquid collection tank 10 is then transported back to the plate and frame filter press 1 for filtration via the return pump 13 and the return pipe 12. This solves the problem of valuable metal loss caused by the turbid liquid from the plate and frame filter press 1 directly entering the filtrate collection tank 8. At the same time, it also reduces the risk of impeller wear and pipe blockage of the solution transfer pump, and better ensures smooth production.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for treating turbidity in filtrate from a plate and frame filter press, wherein the plate and frame filter press (1) is provided with a filtrate outlet pipe (2); characterized in that, include: The overflow assembly includes an overflow trough (3) connected to the outlet pipe (2) and an intermediate trough (4) connected to the overflow trough (3); the overflow trough (3) is provided with a liquid storage chamber (5), and the overflow trough (3) is provided with an overflow port (6) connected to the liquid storage chamber (5); the intermediate trough (4) is provided with an overflow pipe (7); the plane at the top of the overflow pipe (7) is lower than the plane at the overflow port (6), and the end of the overflow pipe (7) away from the intermediate trough (4) is provided with a filtrate collection tank (8); The turbid liquid collection assembly includes a turbid liquid pipe (9) connected to the storage chamber (5) and the intermediate tank (4), and a turbid liquid collection tank (10) connected to the turbid liquid pipe (9); the plane at the top of the turbid liquid pipe (9) is lower than the plane at the overflow port (6), and a sealing component (11) is provided on the turbid liquid pipe (9); a return liquid pipe (12) connected to the plate and frame filter press (1) is provided on the turbid liquid collection tank (10); and a return liquid pump (13) is provided on the return liquid pipe (12).

2. The plate and frame filter press filtrate turbidity treatment device according to claim 1, characterized in that: The outlet pipe (2) is inserted into the liquid storage chamber (5), and there is a gap between the outlet pipe (2) and the bottom of the liquid storage chamber (5).

3. The plate and frame filter press filtrate turbidity treatment device according to claim 2, characterized in that: The intermediate tank (4) is hollow inside to form a liquid passage cavity (14). A partition (15) is provided inside the intermediate tank (4) to separate the liquid passage cavity (14) and form a liquid storage cavity (5). The height of the partition (15) is less than the height of the intermediate tank (4).

4. The plate and frame filter press filtrate turbidity treatment device according to claim 3, characterized in that: The bottom end of the liquid storage cavity (5) is lower than the end away from the partition (15) so that the bottom end of the liquid storage cavity (5) is in an inclined state.

5. The plate and frame filter press filtrate turbidity treatment device according to claim 4, characterized in that: The overflow pipe (7) is located at the end away from the partition (15), and the inner diameter of the overflow pipe (7) is larger than the inner diameter of the outlet pipe (2).

6. The plate and frame filter press filtrate turbidity treatment device according to claim 5, characterized in that: The inner diameter of the turbid liquid pipe (9) is larger than the inner diameter of the outlet pipe (2); the sealing element (11) includes a sealing plug disposed on the turbid liquid pipe (9).

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