Overflow pump caustic washing device

Abstract

The present disclosure relates to the technical field of caustic washing device, and one embodiment of the present disclosure provides an overflow pump caustic washing device, which comprises a cleaning assembly, a bottom flow pump, a suction pipe, a recovery pipe and a conversion assembly. The cleaning assembly is arranged on the side of a caustic tank and used for cleaning a settling tank and an overflow pump to be cleaned. The bottom flow pump is installed on a bottom plate. The suction pipe is connected and installed between the bottom flow pump and the settling tank. The recovery pipe is connected and installed at a water outlet of the bottom flow pump. The conversion assembly is arranged on the recovery pipe and used for recycling or utilizing the recovered caustic liquid. Through the above technical solution, the technical problem that the caustic liquid is directly discharged after passing through the inside of the settling tank and the overflow pump in the prior art is solved, and the recycling is not achieved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of alkaline washing apparatus technology, and more specifically, to an overflow pump alkaline washing apparatus. Background Technology

[0002] In alumina production, the decomposition and sedimentation of alumina is an essential process. After processes such as leaching, the slurry is in a solid-liquid mixed state, containing solid red mud particles and sodium aluminate solution. The slurry is fed into a sedimentation tank, where the gravity of the solids separates the sodium aluminate solution from the insoluble silica particles, achieving coarse filtration of the sodium aluminate solution. Then, the coarsely filtered sodium aluminate solution is pumped through the overflow layer outlet into the leaf filter for fine filtration. Some insoluble solid particles remain in the overflow layer, which can be retained in the overflow pump or sedimentation tank, thus affecting the accuracy of subsequent flow control of the overflow pump.

[0003] When removing scale from the overflow pump and settling tank, alkaline solutions can be used. After the alkaline solution comes into contact with the scale particles, the scale particles can gradually dissolve, forming soluble salts that detach from the attached surface. However, when removing scale particles with alkaline solution, the temperature of the alkaline solution needs to be raised to above 90°C. Therefore, it is difficult to accurately control the temperature of existing alkaline washing devices. If the required temperature is not reached, the scale removal effect will be poor. Furthermore, after the alkaline solution passes through the settling tank and overflow pump, it is directly discharged, which not only wastes resources and fails to achieve the effect of recycling, but also causes harm to the environment or water pollution. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide an overflow pump alkaline washing device, which solves the technical problem in the prior art that after the alkaline solution passes through the settling tank and the overflow pump, the alkaline solution is directly discharged and not recycled.

[0005] According to one aspect, at least one embodiment of this disclosure provides an overflow pump alkaline washing device, including a base plate, an alkaline solution tank, and a settling tank. The alkaline solution tank and the settling tank are both mounted on the base plate. The device also includes a cleaning assembly, an underflow pump, a suction pipe, a recovery pipe, and a conversion assembly. The cleaning assembly is disposed on the side of the alkaline solution tank and is used to clean the settling tank and the overflow pump to be cleaned. The underflow pump is mounted on the base plate. The suction pipe is connected between the underflow pump and the settling tank. The recovery pipe is connected to the outlet of the underflow pump. The conversion assembly is disposed on the recovery pipe and is used to utilize or recycle the recovered alkaline solution.

[0006] Furthermore, the cleaning assembly includes an alkali pump, an inlet pipe, an outlet pipe, an outlet hopper, and a reflux assembly. The alkali pump is mounted on the base plate. The inlet pipe is connected between the alkali tank and the alkali pump. The outlet pipe is connected to the outlet of the alkali pump and is located above the settling tank. Several outlet hoppers are provided, and all of the outlet hoppers are connected to the bottom end of the outlet pipe. The reflux assembly is located on the settling tank and is used to allow the alkali solution after cleaning the alkali pump to flow into the settling tank.

[0007] Furthermore, the reflux assembly includes a mounting frame, a cleaning pipe, a first support ring, an outlet pipe, and a connecting pipe. The mounting frame is fixedly installed on the side of the settling tank. The cleaning pipe is connected to the top of the outlet pipe. Two first support rings are provided, and the two first support rings are detachably installed on the side of the mounting frame. Two outlet pipes are provided, and the two outlet pipes are fixedly installed on the two first support rings. The connecting pipe is located between the two outlet pipes, and the two outlet pipes are connected to both sides of the outlet pipe.

[0008] Furthermore, the conversion assembly includes a motor, a gear, a rotating tube, and a gear ring. The motor is mounted on the base plate, the gear is fixedly connected to the output end of the motor via a rotating shaft, the rotating tube is connected to the top end of the recycling tube, the gear ring is fixedly mounted on the rotating tube, and the gear meshes with the gear ring.

[0009] Furthermore, it also includes a heat preservation component, which includes a steam coil, a gas supply pipe, and a temperature sensor. The steam coil is fixedly installed inside the alkali solution tank, the gas supply pipe is connected and installed on the side of the steam coil, and the temperature sensor is installed inside the alkali solution tank.

[0010] Furthermore, two support rods are detachably installed on the base plate, and the recycling pipe is fixedly installed on the two support rods.

[0011] Furthermore, the outflow pipe and several of the liquid outlet hoppers are all located above the settling tank.

[0012] Furthermore, the rotating tube is rotatably mounted on the recycling tube via a rotary joint.

[0013] Furthermore, a rubber sealing ring is installed between the steam coil and the alkali tank.

[0014] Furthermore, a cover plate is hinged to the top of the alkali tank, and the cover plate has heat insulation properties.

[0015] The beneficial effects of the embodiments disclosed herein are as follows:

[0016] In this disclosure, when cleaning the overflow pump and settling tank and recovering alkali solution, the overflow pump and settling tank that need to be cleaned can first be cleaned by the cleaning component. After cleaning, all the used alkali solution flows into the settling tank. Then, the alkali solution in the settling tank is flowed back into the alkali solution tank through the recovery pipe by the underflow pump and suction pipe for secondary use. If it is not needed for reuse and needs to be recovered, the suctioned alkali solution is discharged to another place by the conversion component. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram showing the structure of the alkaline solution tank, settling tank, and cleaning components of this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the conversion component of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the alkaline solution tank and the heat preservation component of this utility model.

[0022] In the diagram: 1. Base plate; 2. Alkali tank; 3. Settling tank; 4. Underflow pump; 5. Suction pipe; 6. Recovery pipe; 7. Alkali pump; 8. Inlet pipe; 9. Outlet pipe; 10. Outlet hopper; 11. Mounting frame; 12. Cleaning pipe; 13. Support ring one; 14. Outlet pipe; 15. Connecting pipe; 16. Motor; 17. Gear; 18. Rotating pipe; 19. Gear ring; 20. Steam coil; 21. Gas supply pipe; 22. Temperature sensor; 23. Support rod two; 24. Cover plate. Detailed Implementation

[0023] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0024] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0025] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0026] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0028] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] Example 1, as Figures 1-4As shown, an overflow pump alkaline washing device according to an embodiment of the present disclosure is illustrated, including a base plate 1, an alkaline solution tank 2, and a settling tank 3. The alkaline solution tank 2 and the settling tank 3 are both mounted on the base plate 1. The device also includes a cleaning assembly, an underflow pump 4, a suction pipe 5, a recovery pipe 6, and a conversion assembly. The cleaning assembly is disposed on the side of the alkaline solution tank 2 and is used to clean the settling tank 3 and the overflow pump to be cleaned. The underflow pump 4 is mounted on the base plate 1. The suction pipe 5 is connected and installed between the underflow pump 4 and the settling tank 3. The recovery pipe 6 is connected and installed at the outlet of the underflow pump 4. The conversion assembly is disposed on the recovery pipe 6 and is used to utilize or recycle the recovered alkaline solution.

[0030] When cleaning the overflow pump and settling tank 3, such as Figure 2 As shown, the alkaline solution is cleaned using a cleaning assembly, which includes an alkaline pump 7, an inlet pipe 8, an outlet pipe 9, an outlet hopper 10, and a reflux assembly. The alkaline pump 7 is mounted on the base plate 1. The inlet pipe 8 is connected between the alkaline tank 2 and the alkaline pump 7. The outlet pipe 9 is connected to the outlet of the alkaline pump 7 and is located above the settling tank 3. Several outlet hoppers 10 are provided, and each outlet hopper 10 is connected to the bottom end of the outlet pipe 9. The reflux assembly is located on the settling tank 3 and is used to allow the alkaline solution after cleaning the alkaline pump 7 to flow into the settling tank 3. The system includes a mounting bracket 11, a cleaning pipe 12, a support ring 13, an outlet pipe 14, and a connecting pipe 15. The mounting bracket 11 is fixedly installed on the side of the settling tank 3. The cleaning pipe 12 is connected to the top of the outlet pipe 9. Two support rings 13 are provided, and each support ring 13 is detachably installed on the side of the mounting bracket 11 by bolts. Two outlet pipes 14 are provided, and each outlet pipe 14 is fixedly installed on one of the two support rings 13. The connecting pipe 15 is located between the two outlet pipes 14, and the two outlet pipes 14 are connected to both sides of the outlet pipe 14.

[0031] Specifically, the overflow pump to be cleaned is installed on the mounting bracket 11, the cleaning pipe 12 is connected to the inlet of the overflow pump, and the connecting pipe 15 is connected to the outlet of the overflow pump. The alkali pump 7 is started, and the alkali pump 7 draws the alkali solution in the alkali tank 2 into the outlet hopper 10 through the inlet pipe 8 and the outlet pipe 9. The outlet hopper 10 sprays the alkali solution into the settling tank 3. The outlet pipe 14 and several outlet hoppers 10 are all located above the settling tank 3, thereby cleaning the settling tank 3. The alkali solution in the outlet pipe 9 enters the overflow pump through the cleaning pipe 12 for cleaning, and then flows into the settling tank 3 through the connecting pipe 15 and the outlet pipe 14, thus completing the cleaning.

[0032] After cleaning, when reusing the alkaline solution in settling tank 3, the underflow pump 4 can be started. The underflow pump 4 draws the alkaline solution in alkaline tank 2 into rotating pipe 18 through suction pipe 5 and recovery pipe 6. Two support rods 23 are detachably installed on the base plate 1 by bolts, and the recovery pipe 6 is fixedly installed on the two support rods 23. The support rods 23 can support the recovery pipe 6, and then the solution flows into alkaline tank 2 through rotating pipe 18. If reuse is not required and the alkaline solution needs to be recovered, it can be done through a conversion component, such as... Figure 3 As shown, the conversion assembly includes a motor 16, a gear 17, a rotating tube 18, and a gear ring 19. The motor 16 is mounted on the base plate 1. The gear 17 is fixedly connected to the output end of the motor 16 via a rotating shaft. The rotating tube 18 is connected to the top of the recovery tube 6. The gear ring 19 is fixedly mounted on the rotating tube 18, and the gear 17 meshes with the gear ring 19. Specifically, when the motor 16 is started, the output end of the motor 16 drives the gear 17 to rotate. The gear 17 drives the gear ring 19, which meshes with it, to rotate. The rotating tube 18 is connected to the recovery tube 6 via a rotary joint. The gear ring 19 then drives the rotating tube 18 to rotate to a position away from the alkali tank 2, thus converting it to another position, so that the alkali can be recovered when it flows out. It should be noted that the connection between the internal pipe and the pump is detachable via a flange, which facilitates the disassembly and cleaning of the subsequent pipes and allows for the installation and cleaning of different overflow pumps.

[0033] Working principle: During cleaning and alkali recovery, the overflow pump to be cleaned is first installed on the mounting bracket 11. The cleaning pipe 12 is connected to the inlet of the overflow pump, and then the connecting pipe 15 is connected to the outlet of the overflow pump. The alkali pump 7 is started, and the alkali pump 7 introduces alkali into the outlet hopper 10 and the cleaning pipe 12 through the inlet pipe 8 and the outlet pipe 9, thereby cleaning the settling tank 3 and the overflow pump. After cleaning, the alkali flows to the settling tank 3 through the connecting pipe 15 and the outlet pipe 14. The solution is placed in the sink 3, and then the underflow pump 4 is started. The underflow pump 4 transports the alkali solution to the rotating pipe 18 through the suction pipe 5 and the recovery pipe 6. Then, it flows to the alkali solution tank 2 through the rotating pipe 18 for subsequent secondary use. If secondary use is not required, the motor 16 is started. The output end of the motor 16 drives the gear 17 to rotate. The gear 17 drives the gear ring 19 that meshes with it to rotate. The gear ring 19 drives the rotating pipe 18 to rotate to other positions in the recovery pipe 6 to release it for recycling.

[0034] In Example 2, when cleaning the settling tank 3 and the overflow pump, the temperature of the alkaline solution needs to reach 90°C. Therefore, a heat preservation component is required to raise and maintain the temperature of the alkaline solution in the alkaline solution tank 2. Figure 4As shown, the insulation component includes a steam coil 20, a gas supply pipe 21, and a temperature sensor 22. The steam coil 20 is fixedly installed inside the alkali tank 2. The gas supply pipe 21 is connected and installed on the side of the steam coil 20. The temperature sensor 22 is installed inside the alkali tank 2. A rubber sealing ring is installed between the steam coil 20 and the alkali tank 2. A cover plate 24 is hinged to the top of the alkali tank 2, and the cover plate 24 has insulation properties. Specifically, steam enters the steam coil 20 through the gas inlet pipe, and the steam coil 20 heats the alkali in the alkali tank 2. The internal temperature sensor 22 measures the temperature in real time, and can cover the cover plate 24 to prevent heat from escaping from the top of the alkali tank 2.

[0035] Working principle: When adjusting the temperature, steam is introduced into the steam coil 20 through the air inlet pipe. The steam coil 20 heats the alkali solution in the alkali solution tank 2. The internal temperature sensor 22 measures the temperature in real time, and the rubber sealing ring ensures that there are no gaps when the steam coil 20 passes through the alkali solution tank 2.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. An overflow pump alkaline washing device, comprising a base plate (1), an alkaline solution tank (2), and a settling tank (3), wherein the alkaline solution tank (2) and the settling tank (3) are both mounted on the base plate (1), characterized in that, Also includes: A cleaning assembly is provided on the side of the alkali tank (2) for cleaning the settling tank (3) and the overflow pump to be cleaned. Underflow pump (4), the underflow pump (4) is mounted on the base plate (1); Suction pipe (5), which is connected and installed between the underflow pump (4) and the settling tank (3); A recovery pipe (6) is connected to the outlet of the underflow pump (4); A conversion component is provided on the recovery tube (6) for utilizing or recovering the recovered alkali solution.

2. The overflow pump alkaline washing device according to claim 1, characterized in that, The cleaning assembly includes: Alkali pump (7), said alkali pump (7) is mounted on said base plate (1); An inlet pipe (8) is installed between the alkali tank (2) and the alkali pump (7); The outlet pipe (9) is connected to the outlet of the alkaline pump (7) and is located above the settling tank (3). A liquid outlet hopper (10) is provided in a plurality of such hoppers, and all such hoppers (10) are connected and installed at the bottom end of the liquid outlet pipe (9); A reflux assembly is provided on the settling tank (3) to allow the alkaline solution after the cleaning alkaline solution pump (7) has finished to flow into the settling tank (3).

3. The overflow pump alkaline washing device according to claim 2, characterized in that, The reflow component includes: Mounting bracket (11), which is fixedly mounted on the side of the settling tank (3); A cleaning tube (12) is connected to the top end of the outlet tube (9); Support ring 1 (13), two support rings 1 (13) are provided, and the two support rings 1 (13) are respectively detachably installed on the side of the mounting bracket (11); Outflow pipe (14), two outflow pipes (14) are provided, and the two outflow pipes (14) are respectively fixedly installed on the two support rings (13); A connecting pipe (15) is disposed between the two outflow pipes (14), and the two outflow pipes (14) are respectively connected to both sides of the outflow pipe (14).

4. The overflow pump alkaline washing device according to claim 3, characterized in that, The conversion component includes: Motor (16), said motor (16) is mounted on said base plate (1); Gear (17), the gear (17) is fixedly connected to the output end of the motor (16) via a rotating shaft; Rotating tube (18), the rotating tube (18) is connected to the top end of the recycling tube (6); A gear ring (19) is fixedly mounted on the rotating tube (18), and the gear (17) meshes with the gear ring (19).

5. The overflow pump alkaline washing device according to claim 4, characterized in that, It also includes a thermal insulation component, which includes: Steam coil (20), the steam coil (20) is fixedly installed inside the alkali tank (2); Gas delivery pipe (21), which is connected to the side of the steam coil (20); Temperature sensor (22) is installed inside the alkali tank (2).

6. The overflow pump alkaline washing device according to claim 5, characterized in that, Two support rods (23) are detachably installed on the base plate (1), and the recycling pipe (6) is fixedly installed on the two support rods (23).

7. The overflow pump alkaline washing device according to claim 6, characterized in that, The outflow pipe (14) and several of the liquid outlet hoppers (10) are located above the settling tank (3).

8. The overflow pump alkaline washing device according to claim 7, characterized in that, The rotating tube (18) is connected to the recycling tube (6) via a rotary joint.

9. An overflow pump alkaline washing device according to claim 8, characterized in that, A rubber sealing ring is installed between the steam coil (20) and the alkali tank (2).

10. An overflow pump alkaline washing device according to claim 9, characterized in that, The top of the alkali tank (2) is hinged to a cover plate (24), and the cover plate (24) has heat insulation properties.

Images