APT (ammonium paratungstate) production wastewater recycling device and method

Abstract

The invention discloses an APT production wastewater recycling device and method, and relates to the technical field of wastewater recycling devices.The APT production wastewater recycling device comprises a treatment tank provided with a water inlet pipe, and a filtering part used for filtering impurities is arranged in the treatment tank; the filter part comprises a first filter screen which is obliquely arranged; wherein a water inlet mechanism is arranged at the end, located in the treatment tank, of the water inlet pipe and comprises a first pipe body, an air bag and a second pipe body, the first pipe body communicates with the water inlet pipe, the air bag communicates with the end, away from the water inlet pipe, of the first pipe body, and the second pipe body communicates with the end, away from the first pipe body, of the air bag. According to the APT production wastewater recycling device and method, by arranging the structures such as the filtering piece and the air bag, the filtering effect is achieved, meanwhile, impurities slide towards the lower position, so that the impurities are accumulated in the collecting area and are convenient to collect and treat, the sliding speed of the impurities can be increased by increasing the flow speed of a water body, and the collecting efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater recycling devices, and particularly to an APT production wastewater recycling device and method. Background Art

[0002] Ammonium paratungstate (APT) is an inorganic compound with a monoclinic system of small transparent crystals or white crystals in appearance. The relative density is 2.3, soluble in water, insoluble in ethanol. The aqueous solution is weakly acidic. When heated in air, partial ammonia molecules begin to be removed below 100 °C, and all ammonia molecules and crystal water are removed under strong heating, turning into yellow tungsten trioxide powder. It decomposes in acid and alkali solutions and reacts with hydrogen peroxide to form soluble peroxotungstates. It is used to manufacture tungsten trioxide or blue tungsten oxide to produce tungsten powder. It is also used to manufacture ammonium metatungstate and other tungsten compounds, and is used as an additive in the petrochemical industry. When producing ammonium paratungstate (APT), a wastewater recycling device is required.

[0003] In the existing wastewater recycling devices, a filter screen is usually set to filter impurities in the wastewater. However, after long-term use, it is necessary to stop the machine for operators to manually clean the filter screen, which is cumbersome and affects the use efficiency of the wastewater recycling device.

[0004] Therefore, it is very necessary to propose an APT production wastewater recycling device and method to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an APT production wastewater recycling device and method to solve the problem that in the existing wastewater recycling devices, a filter screen is usually set to filter impurities in the wastewater. However, after long-term use, it is necessary to stop the machine for operators to manually clean the filter screen, which is cumbersome and affects the use efficiency of the wastewater recycling device.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An APT production wastewater recycling device includes a treatment tank provided with a water inlet pipe, and a filtering member for filtering impurities is arranged inside the treatment tank;

[0007] The filtering member includes a first filter screen arranged obliquely;

[0008] Wherein, one end of the water inlet pipe inside the treatment tank is provided with a water inlet mechanism, and the water inlet mechanism includes a first pipe body, an airbag and a second pipe body. The first pipe body is communicated with the water inlet pipe, the airbag is communicated at one end of the first pipe body away from the water inlet pipe, and the second pipe body is communicated at one end of the airbag away from the first pipe body;

[0009] The bottom end of the airbag abuts against the first filter screen, and one side wall of the airbag is thick while the other side wall is thin;

[0010] When water enters, control the second pipe body to close, the airbag expands and squeezes the first filter screen to swing downward, and at the same time the second pipe body swings towards the thicker side of the airbag;

[0011] Control the second pipe body to open, the airbag contracts, increasing the water flow rate, and the first filter screen resets, and at the same time the second pipe body resets.

[0012] Preferably, a solenoid valve is fixedly installed on the second pipe body.

[0013] Preferably, the water inlet mechanism is close to the upwardly inclined end of the first filter screen.

[0014] Preferably, the filter element further includes a second filter screen and a rubber ring. The second filter screen is fixedly connected to the downwardly inclined end of the first filter screen. Both the first filter screen and the second filter screen are fixedly connected to the inner ring of the rubber ring, and the outer ring of the rubber ring is fixedly connected to the inner wall of the treatment tank.

[0015] Preferably, a collection area is formed between the second filter screen, the rubber ring and the inner wall of the treatment tank.

[0016] Preferably, a support plate and a rotating shaft are arranged below the first filter screen. The top end of the support plate is fixedly connected to the bottom of the first filter screen. The rotating shaft is fixedly connected to the inner wall of the treatment tank. The bottom end of the support plate is rotatably arranged on the rotating shaft.

[0017] Preferably, a filter cover is fixedly connected to the bottom end inside the treatment tank. A storage chamber is formed between the filter cover and the bottom end of the treatment tank. An outlet pipe is installed at the bottom end of the treatment tank. One end of the outlet pipe located inside the treatment tank is communicated with a horizontal pipe. The end of the horizontal pipe far from the outlet pipe is communicated with a vertical pipe, and the vertical pipe passes through the filter cover and extends into the storage chamber.

[0018] Preferably, a circular hole is opened at the top end of the vertical pipe. A round rod is rotatably arranged inside the circular hole. The top end of the round rod is fixedly connected with an elastic strip. A vertical rod is fixedly connected to the bottom of the first filter screen. The elastic strip cooperates with the vertical rod. The bottom end of the round rod is fixedly connected with a paddle.

[0019] Preferably, a support column is fixedly connected to the bottom end of the treatment tank. There are multiple support columns, and the multiple support columns are evenly distributed around the axis of the treatment tank.

[0020] The present invention also discloses a method for recycling APT production wastewater, using the above-mentioned APT production wastewater recycling device, and further including the following operation steps:

[0021] S1. Control the second pipe body to close, the airbag expands and squeezes the first filter screen to swing downward, and at the same time the second pipe body swings towards the thicker side of the airbag;

[0022] S2. Control the opening of the second pipe body, contract the airbag, increase the water flow rate, accelerate the sliding of impurities, and at the same time, the first filter screen resets and swings, and the second pipe body resets to evenly admit water;

[0023] S3. Suction the filtered water from the bottom of the treatment tank for recycling.

[0024] The technical effects and advantages of the present invention:

[0025] 1. By setting structures such as filter elements and airbags, the present invention achieves the filtering effect. At the same time, impurities also slide downward, accumulating in the collection area for easy collection and treatment. Increasing the water flow rate can improve the sliding speed of impurities and enhance the collection efficiency;

[0026] 2. The expansion and contraction of the airbag will squeeze the first filter screen to swing, further accelerating the sliding speed of impurities;

[0027] 3. One side wall of the airbag is thick while the other side wall is thin, expanding the coverage area. The wastewater sprayed from the second pipe body is evenly distributed on the first filter screen to ensure the filtering efficiency;

[0028] 4. The water body that has been filtered twice is pumped out by the vertical pipe, horizontal pipe and outlet pipe for recycling. The paddle drives the round rod to rotate, and the round rod drives the elastic strip to rotate, hitting the vertical rod, causing the filter element to vibrate slightly and improving the sliding speed of impurities. Brief Description of the Drawings

[0029] Figure 1 It is a schematic structural diagram of the APT production wastewater recycling device of the present invention.

[0030] Figure 2 It is a schematic structural diagram of the treatment tank and filter element of the present invention.

[0031] Figure 3 It is the present invention Figure 2 The enlarged schematic diagram of the structure at A in the present invention.

[0032] Figure 4 It is the present invention Figure 2 The enlarged schematic diagram of the structure at B in the present invention.

[0033] Figure 5 It is the present invention Figure 2 The enlarged schematic diagram of the structure at C in the present invention.

[0034] Figure 6 It is a schematic structural diagram of the first pipe body and airbag of the present invention.

[0035] Figure 7 It is a schematic structural diagram of the first filter screen and the second filter screen of the present invention.

[0036] In the figure: 1, treatment tank; 2, water inlet pipe; 3, water outlet pipe; 4, pump body; 5, filter element; 501, first filter screen; 502, second filter screen; 503, rubber ring; 6, first pipe body; 7, airbag; 8, second pipe body; 9, solenoid valve; 10, support plate; 11, rotating shaft; 12, collection area; 13, horizontal pipe; 14, filter cover; 15, vertical pipe; 16, round hole; 17, round rod; 18, paddle; 19, elastic strip; 20, vertical rod; 21, storage chamber; 22, support column. Detailed implementation manner

[0037] The present invention provides an APT production wastewater recycling device as shown in Figures 1 to 7 which includes a treatment tank 1 provided with a water inlet pipe 2. A support column 22 is fixedly connected to the bottom end of the treatment tank 1. There are multiple support columns 22, and the multiple support columns 22 are evenly distributed around the axis of the treatment tank 1. The support column 22 is provided to support the treatment tank 1.

[0038] Referring to Figure 1 as shown in, a pump body 4 is provided at one end of the water inlet pipe 2 away from the treatment tank 1. The pump body 4 includes structures such as an impeller, which is used to suck the wastewater produced by APT production into the treatment tank 1 and treat the wastewater inside the treatment tank 1. A water outlet pipe 3 is installed at the bottom end of the treatment tank 1, and the treated water body is pumped out through the water outlet pipe 3 for recycling use. A pump body 4 can also be provided on the water outlet pipe 3, which can be adjusted according to the specific usage situation.

[0039] Referring to Figure 2 , Figure 7 as shown in, in order to realize the filtration treatment of impurities in the wastewater, a filter element 5 for filtering impurities is provided inside the treatment tank 1. The filter element 5 includes a first filter screen 501 arranged obliquely. The filter element 5 further includes a second filter screen 502 and a rubber ring 503. The second filter screen 502 is fixedly connected to the downwardly inclined end of the first filter screen 501. The second filter screen 502 is also arranged obliquely, and the end away from the first filter screen 501 is inclined downward. The slope of the second filter screen 502 is greater than the slope of the first filter screen 501. The first filter screen 501 and the second filter screen 502 are both fixedly connected to the inner ring of the rubber ring 503, and the outer ring of the rubber ring 503 is fixedly connected to the inner wall of the treatment tank 1.

[0040] Since the first filter screen 501 and the second filter screen 502 are arranged obliquely, when the wastewater is conveyed to the position above the filter element 5, it can flow from high to low along the inclined plane formed by the first filter screen 501 and the second filter screen 502 to achieve the filtering effect. At the same time, the impurities also slide downward, which is convenient for collection and treatment.

[0041] In addition, due to the provision of the rubber ring 503, the first filter screen 501 and the second filter screen 502 can swing, accelerating the sliding of the impurities.

[0042] A collection area 12 is formed between the second filter screen 502, the rubber ring 503 and the inner wall of the treatment tank 1 for collecting impurities. A cleaning groove, a cover plate, etc. can be provided at the position of the treatment tank 1 corresponding to the collection area 12. The cover plate is opened, and the operator can regularly clean it using the cleaning groove.

[0043] Refer to Figure 2 、 Figure 3 As shown in

[0044] An inlet water mechanism is provided at one end of the water inlet pipe 2 inside the treatment tank 1. The inlet water mechanism is close to the upwardly inclined end of the first filter screen 501. The inlet water mechanism includes a first pipe body 6, an airbag 7 and a second pipe body 8. The airbag 7 has a certain elasticity. The first pipe body 6 is communicated with the water inlet pipe 2. The airbag 7 is communicated at one end of the first pipe body 6 away from the water inlet pipe 2. The second pipe body 8 is communicated at one end of the airbag 7 away from the first pipe body 6. Wastewater is conveyed into the treatment tank 1 by the water inlet pipe 2, the first pipe body 6, the airbag 7 and the second pipe body 8, and when the wastewater is conveyed to the upwardly inclined end of the first filter screen 501, it can flow from high to low along the inclined plane formed by the first filter screen 501 and the second filter screen 502 to achieve the filtering effect.

[0045] The bottom end of the airbag 7 abuts against the first filter screen 501. When the airbag 7 expands and becomes larger, it will squeeze the end of the first filter screen 501 close to the inlet water mechanism to swing downward; when the airbag 7 contracts, the first filter screen 501 resets.

[0046] To ensure that the wastewater sprayed from the second pipe body 8 is evenly distributed on the first filter screen 501, refer to Figure 7 (Top view of the top of the treatment tank 1). One side wall of the airbag 7 is thick, while the other side wall is thin. When no wastewater treatment is carried out, the second pipe body 8 is inclined towards the thin side wall of the airbag 7; when conveying wastewater and the airbag 7 expands and becomes larger, since the deformation degree of the thin part of the airbag 7 is greater than that of the thick part of the airbag 7, the second pipe body 8 swings towards the thick side of the airbag 7.

[0047] Specifically, when water inlet, the solenoid valve 9 is closed to control the second pipe body 8 to close. Wastewater enters the inside of the airbag 7 to make the airbag 7 expand and become larger. After the airbag 7 expands and becomes larger, it will squeeze the first filter screen 501 to swing downward, and at the same time the second pipe body 8 swings towards the thick side of the airbag 7;

[0048] Next, open the solenoid valve 9 to control the opening of the second pipe body 8. The airbag 7 contracts. Under the action of the self-resetting elastic force of the airbag 7, the water flow rate is increased. When the wastewater is conveyed to the position above the filter element 5, it can flow from high to low along the inclined plane formed by the first filter screen 501 and the second filter screen 502, achieving the filtering effect. At the same time, the impurities also slide downward, accumulating in the collection area 12, facilitating collection and treatment. Moreover, increasing the water flow rate can increase the sliding speed of the impurities and improve the collection efficiency.

[0049] Moreover, the bottom end of the airbag 7 is separated from the first filter screen 501, and the first filter screen 501 swings back to its original position, further accelerating the sliding speed of the impurities. At the same time, the second pipe body 8 swings obliquely from the side with a thicker wall of the airbag 7 towards the side with a thinner wall of the airbag 7, expanding the coverage area. The wastewater sprayed from the second pipe body 8 is evenly distributed on the first filter screen 501, ensuring the filtering efficiency.

[0050] Repeat the above operations to ensure the efficiency of filtering and collection.

[0051] Through the arrangement of structures such as the filter element 5 and the airbag 7, the present invention achieves the filtering effect. At the same time, the impurities also slide downward, accumulating in the collection area 12, facilitating collection and treatment. Moreover, increasing the water flow rate can increase the sliding speed of the impurities and improve the collection efficiency.

[0052] In addition, the expansion and contraction of the airbag 7 will squeeze the first filter screen 501 to swing, further accelerating the sliding speed of the impurities.

[0053] One side wall of the airbag 7 is thick, while the other side wall is thin, expanding the coverage area. The wastewater sprayed from the second pipe body 8 is evenly distributed on the first filter screen 501, ensuring the filtering efficiency.

[0054] A support plate 10 and a rotating shaft 11 are arranged below the first filter screen 501. The top end of the support plate 10 is fixedly connected to the bottom of the first filter screen 501, the rotating shaft 11 is fixedly connected to the inner wall of the treatment tank 1, and the bottom end of the support plate 10 is rotatably arranged on the rotating shaft 11. The arrangement of the support plate 10 and the rotating shaft 11 ensures the stability of the swing of the filter element 5.

[0055] A filter cover 14 is fixedly connected to the bottom end inside the treatment tank 1 for secondary filtration treatment. A storage chamber 21 is formed between the filter cover 14 and the bottom end of the treatment tank 1. One end of the water outlet pipe 3 inside the treatment tank 1 is communicated with a horizontal pipe 13. The end of the horizontal pipe 13 far from the water outlet pipe 3 is communicated with a vertical pipe 15, and the vertical pipe 15 passes through the filter cover 14 and extends into the storage chamber 21. The water body that has been filtered twice is pumped out by the vertical pipe 15, the horizontal pipe 13, and the water outlet pipe 3 for recycling.

[0056] A circular hole 16 is formed at the top end of the vertical pipe 15. A round rod 17 is rotatably arranged inside the circular hole 16. An elastic strip 19 is fixedly connected to the top end of the round rod 17. A vertical rod 20 is fixedly connected to the bottom of the first filter screen 501. The elastic strip 19 cooperates with the vertical rod 20. A paddle 18 is fixedly connected to the bottom end of the round rod 17. The water body that has been filtered twice is pumped out by the vertical pipe 15, the horizontal pipe 13 and the water outlet pipe 3 for recycling. The paddle 18 drives the round rod 17 to rotate, and the round rod 17 drives the elastic strip 19 to rotate, hitting the vertical rod 20, causing the filter element 5 to vibrate slightly and increasing the sliding speed of impurities.

[0057] The present invention also discloses a method for recycling APT production wastewater, using the above APT production wastewater recycling device, and further comprising the following operating steps:

[0058] S1. Control the second pipe body 8 to close, the airbag 7 expands and squeezes the first filter screen 501 to swing downward, and at the same time the second pipe body 8 swings towards the thicker side of the airbag 7;

[0059] S2. Control the second pipe body 8 to open, the airbag 7 contracts, increasing the water flow rate, accelerating the sliding of impurities, and the first filter screen 501 swings back to its original position, and at the same time the second pipe body 8 returns to evenly intake water;

[0060] S3. Suction the filtered water body from the bottom end of the treatment tank 1 for recycling.

Claims

1. An APT production wastewater recycling device, characterized in that: It includes a treatment tank (1) provided with a water inlet pipe (2), and a filter element (5) for filtering impurities is arranged inside the treatment tank (1); The filter element (5) includes a first filter screen (501) arranged obliquely; Wherein, one end of the water inlet pipe (2) located inside the treatment tank (1) is provided with a water inlet mechanism, and the water inlet mechanism includes a first pipe body (6), an airbag (7) and a second pipe body (8). The first pipe body (6) is communicated with the water inlet pipe (2), the airbag (7) is communicated with one end of the first pipe body (6) far away from the water inlet pipe (2), and the second pipe body (8) is communicated with one end of the airbag (7) far away from the first pipe body (6); The bottom end of the airbag (7) abuts against the first filter screen (501), and one side wall of the airbag (7) is thick while the other side wall is thin; When water enters, the second pipe body (8) is controlled to be closed, the airbag (7) expands and squeezes the first filter screen (501) to swing downward, and at the same time, the second pipe body (8) swings towards the thick side of the airbag (7); The second pipe body (8) is controlled to be opened, the airbag (7) contracts, the water flow rate is increased, and the first filter screen (501) resets, and at the same time, the second pipe body (8) resets.

2. The APT production wastewater recycling device according to claim 1, wherein: A solenoid valve (9) is fixedly installed on the second pipe body (8).

3. The APT production wastewater recycling device according to claim 1, characterized in that: One end of the water inlet mechanism is inclined upward near the first filter screen (501).

4. An APT production wastewater recycling device according to claim 1, characterized in that: The filter element (5) further includes a second filter screen (502) and a rubber ring (503). The second filter screen (502) is fixedly connected to the downward-inclined end of the first filter screen (501). Both the first filter screen (501) and the second filter screen (502) are fixedly connected to the inner ring of the rubber ring (503), and the outer ring of the rubber ring (503) is fixedly connected to the inner wall of the treatment tank (1).

5. An APT production wastewater recycling device according to claim 4, characterized in that: A collection area (12) is formed between the second filter screen (502), the rubber ring (503) and the inner wall of the treatment tank (1).

6. The APT production wastewater recycling device according to claim 1, characterized in that: A support plate (10) and a rotating shaft (11) are arranged below the first filter screen (501). The top end of the support plate (10) is fixedly connected to the bottom of the first filter screen (501), the rotating shaft (11) is fixedly connected to the inner wall of the treatment tank (1), and the bottom end of the support plate (10) is rotatably arranged on the rotating shaft (11).

7. An APT production wastewater recycling device according to claim 1, characterized in that: The bottom end inside the treatment tank (1) is fixedly connected with a filter cover (14). A storage chamber (21) is formed between the filter cover (14) and the bottom end of the treatment tank (1). A water outlet pipe (3) is installed at the bottom end of the treatment tank (1). One end of the water outlet pipe (3) located inside the treatment tank (1) is communicated with a horizontal pipe (13). One end of the horizontal pipe (13) far away from the water outlet pipe (3) is communicated with a vertical pipe (15), and the vertical pipe (15) passes through the filter cover (14) and extends to the inside of the storage chamber (21).

8. An APT production wastewater recycling device according to claim 7, characterized in that: A circular hole (16) is formed at the top end of the vertical pipe (15). A round rod (17) is rotatably arranged inside the circular hole (16). An elastic strip (19) is fixedly connected to the top end of the round rod (17). A vertical rod (20) is fixedly connected to the bottom of the first filter screen (501). The elastic strip (19) cooperates with the vertical rod (20). A paddle (18) is fixedly connected to the bottom end of the round rod (17).

9. An APT production wastewater recycling device according to claim 1, characterized in that: Support columns (22) are fixedly connected to the bottom end of the treatment tank (1). There are multiple support columns (22), and the multiple support columns (22) are evenly distributed around the axis of the treatment tank (1).

10. A method for recycling APT production wastewater, characterized in that: When using the APT production wastewater recycling device according to any one of claims 1 to 9, the following operating steps are further included: S1. Control the second pipe body (8) to close. The airbag (7) expands and squeezes the first filter screen (501) to swing downward. At the same time, the second pipe body (8) swings toward the thicker side of the airbag (7). S2. Control the second pipe body (8) to open. The airbag (7) contracts to increase the water flow rate and accelerate the sliding of impurities. And the first filter screen (501) swings back to its original position. At the same time, the second pipe body (8) returns to its original position for uniform water intake. S3. Suction the filtered water body from the bottom end of the treatment tank (1) for recycling.

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