An inlet pipe for an upward suction slurry pump

Abstract

This utility model discloses an inlet pipe for an upward-suction slurry pump, belonging to the technical field of slurry conveying equipment. It includes a slurry pool; the pump body's inlet axis is higher than the top of the slurry pool; a first three-way pipe has a first port, a second port, and a third port, with the first port connected to the pump body's inlet; one end of the slurry inlet pipe is connected to the second port, and the other end extends to the bottom of the slurry pool; a second three-way pipe has a fourth port, a fifth port, and a sixth port, with the fourth port connected to the third port, and the fifth port connected to a clean water inlet pipe; one end of a flushing pipe is connected to the sixth port, and the other end is connected to the lower side wall of the slurry inlet pipe; before and after the pump body starts and stops, clean water flows out from the bottom of the slurry inlet pipe, dispersing the material at the bottom of the slurry inlet pipe. Simultaneously, clean water flows into the slurry inlet pipe and into the pump body, preventing pipe blockage; during pump operation, clean water flows into the slurry inlet pipe and mixes with the slurry, adjusting the slurry concentration; and the pump body's inlet axis is higher than the top of the slurry pool, eliminating the risk of flooding.

Description

Technical Field

[0001] This utility model relates to the technical field of slurry conveying equipment, specifically to an inlet pipe for an upward suction slurry pump. Background Technology

[0002] In the mineral processing process, slurry is usually transported by gravity or by slurry pumps. Especially when transporting slurry from a lower to a higher level, a slurry tank of a certain capacity and a certain number of slurry pumps are required. Specifically, the slurry pump is usually installed at the bottom of the slurry tank, with the pump inlet axis lower than the slurry surface. The side of the slurry tank has an opening that connects to the pump inlet via a pipe. On the one hand, the concentration of the slurry transported by this structure is the same as that of the slurry in the tank and cannot be adjusted. In subsequent operations, additional equipment for adjusting the slurry concentration is required. On the other hand, when the slurry pump is not in use, the material in the pipe connected to the pump inlet is prone to sedimentation and blockage.

[0003] In addition, if the amount of slurry in the previous operation suddenly increases, exceeding the maximum capacity of the slurry tank, and the slurry pump cannot meet the conveying capacity in a short period of time, the slurry overflowing from the tank wall will submerge the motor of the slurry pump, causing the motor to burn out.

[0004] Therefore, developing and designing an upward suction slurry pump inlet pipe that can easily adjust the slurry concentration, prevent material from remaining in the slurry pump inlet pipe, avoid submerging the slurry pump motor, is simple to install, and has low investment costs is an urgent problem to be solved at this stage. Summary of the Invention

[0005] To address the problems existing in the prior art, this utility model provides an inlet pipe for an upward-suction slurry pump. Before and after the pump is started, clean water flows through the flushing pipe and out from the bottom of the inlet pipe, which can disperse the material at the bottom of the inlet pipe. At the same time, clean water flows into the inlet pipe and the pump body through the second three-way pipe and the first three-way pipe, so that the pump body and the inlet pipe are filled with clean water, effectively preventing material residue in the pipe from causing blockage. During the operation of the pump, clean water flows into the inlet pipe through the second three-way pipe and the first three-way pipe in sequence and mixes with the slurry, which can adjust the concentration of the slurry. Furthermore, the inlet axis of the pump body is higher than the top of the slurry pool, so the motor will not be at risk of being submerged by the slurry, and operation and maintenance are also more convenient.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] This utility model provides an inlet pipe for an upward suction slurry pump, comprising:

[0008] Slurry pool;

[0009] The pump body has its inlet axis higher than the top of the slurry tank;

[0010] A first tee pipe, the first tee pipe having a first port, a second port and a third port, the first port being connected to the inlet of the pump body;

[0011] A slurry inlet pipe, one end of which is connected to the second port, and the other end of which extends into the bottom of the slurry pool;

[0012] The second three-way pipe has a fourth port, a fifth port and a sixth port, the fourth port is connected to the third port, and the fifth port is connected to a clean water inlet pipe;

[0013] A flushing pipe, one end of which is connected to the sixth port, and the other end of which is connected to the slurry inlet pipe at the lower side wall of the slurry inlet pipe.

[0014] As a preferred technical solution, a first valve is provided between the fourth port and the third port, a second valve is provided between the fifth port and the clean water inlet pipe, and a third valve is provided between the sixth port and the flushing pipe.

[0015] As a preferred technical solution, the first valve, the second valve, and the third valve are all configured as solenoid valves.

[0016] As a preferred technical solution, the system also includes a controller, which is connected to the pump body, the first valve, the second valve, and the third valve respectively.

[0017] As a preferred technical solution, the controller is configured as a PLC.

[0018] As a preferred technical solution, a reducing pipe is provided between the first port and the inlet of the pump body, and the inner diameter of the reducing pipe gradually decreases along the direction closer to the inlet of the pump body.

[0019] As a preferred technical solution, the inner diameter of the slurry inlet pipe is 5-50 mm larger than the inlet inner diameter of the pump body.

[0020] As a preferred technical solution, the inner diameter of the flushing pipe is 20-100 mm smaller than the inner diameter of the slurry inlet pipe.

[0021] As a preferred technical solution, the inlet axis of the pump body is set horizontally, one end of the slurry inlet pipe that communicates with the inlet of the pump body is set horizontally, and the other end of the slurry inlet pipe is set vertically.

[0022] As a preferred technical solution, the pump body is configured as a slurry pump;

[0023] And / or, the pump body is installed on one side of the slurry tank.

[0024] The beneficial effects of this utility model are as follows:

[0025] 1. Before and after the pump body of this utility model is started, clean water flows out from the bottom of the slurry inlet pipe through the flushing pipe, which can disperse the material at the bottom of the slurry inlet pipe. At the same time, clean water flows into the slurry inlet pipe and pump body through the second three-way pipe and the first three-way pipe, so that the pump body and the slurry inlet pipe are filled with clean water, effectively preventing the material in the pipe from causing blockage. During the operation of the pump body, clean water flows into the slurry inlet pipe through the second three-way pipe and the first three-way pipe in sequence and mixes with the slurry, which can adjust the concentration of the slurry. In addition, the inlet axis of the pump body is higher than the top of the slurry pool, so the motor will not be at risk of being submerged by the slurry, and operation and maintenance are more convenient.

[0026] 2. This utility model can adjust the amount of clean water flowing into the slurry inlet pipe, the amount of clean water entering from the clean water inlet pipe, and the amount of clean water flowing into the flushing pipe through the first valve, the second valve, and the third valve, respectively, to ensure that the real-time flow rate of clean water into the slurry inlet pipe and the flushing pipe is within a reasonable range. At the same time, it can also more accurately control the concentration of the slurry after adjustment. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the inlet pipe of an upward suction slurry pump according to the present invention;

[0028] Figure 2 for Figure 1 A magnified view of region A in the middle.

[0029] In the diagram: 1-Slurry tank, 2-Pump body, 21-Inlet, 3-First tee pipe, 31-First port, 32-Second port, 33-Third port, 4-Slurry inlet pipe, 5-Second tee pipe, 51-Fourth port, 52-Fifth port, 53-Sixth port, 54-First valve, 55-Second valve, 56-Third valve, 6-Flushing pipe, 7-Reducing pipe, 8-Clean water inlet pipe. Detailed Implementation

[0030] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0031] Please refer to Figure 1 and Figure 2This invention provides an embodiment of an inlet pipe for an upward-suction slurry pump, comprising a slurry tank 1; a pump body 2 installed on one side of the slurry tank 1, with the inlet 21 of the pump body 2 having an axis higher than the top of the slurry tank 1; a first three-way pipe 3 having a first port 31, a second port 32, and a third port 33, the first port 31 being connected to the inlet 21 of the pump body 2; one end of a slurry inlet pipe 4 being connected to the second port 32, and the other end of the slurry inlet pipe 4 extending into the bottom of the slurry tank 1; when the pump body 2 is started, the slurry in the slurry tank 1 can enter the pump body 2 through the slurry inlet pipe 4, the second port 32, the first port 31, and the inlet 21 of the pump body 2 and be discharged from the outlet of the pump body 2;

[0032] The second three-way pipe 5 has a fourth port 51, a fifth port 52, and a sixth port 53. The fourth port 51 is connected to the third port 33, and the fifth port 52 is connected to a clean water inlet pipe 8. Clean water flows into the second three-way pipe 5 through the clean water inlet pipe 8, and can flow into the slurry inlet pipe 4 through the fourth port 51 and the third port 33. Before the pump body 2 is started, it can fill the inside of the pump body 2 and the slurry inlet pipe 4 with clean water to prevent material residue in the pipe from causing blockage. During the operation of the pump body 2, it can mix with the slurry in the slurry inlet pipe 4 to adjust the concentration of the slurry.

[0033] One end of the flushing pipe 6 is connected to the sixth port 53, and the other end of the flushing pipe 6 is connected to the slurry inlet pipe 4 at the lower side wall of the slurry inlet pipe 4. Clean water flows through the sixth port 53 and the flushing pipe 6 and out from the bottom of the slurry inlet pipe 4, which can disperse the material at the bottom of the slurry inlet pipe 4.

[0034] It should be noted that pump body 2 is preferably configured as a slurry pump.

[0035] In this embodiment, please refer to Figure 1 and Figure 2 A first valve 54 is provided between the fourth port 51 and the third port 33 to control the amount of clean water flowing into the slurry inlet pipe 4; a second valve 55 is provided between the fifth port 52 and the clean water inlet pipe 8 to control the amount of clean water entering from the clean water inlet pipe 8; a third valve 56 is provided between the sixth port 53 and the flushing pipe 6 to control the amount of clean water flowing into the flushing pipe 6; by adjusting the first valve 54, the second valve 55 and the third valve 56, the flow rate of clean water in each pipe can always be kept within a reasonable range, and at the same time, the concentration of the slurry after adjustment can be controlled more precisely.

[0036] Furthermore, the first valve 54, the second valve 55, and the third valve 56 are preferably all solenoid valves. Accordingly, the present invention should also include a controller, which is connected to the pump body 2, the first valve 54, the second valve 55, and the third valve 56 respectively. By controlling the opening and closing of the pump body 2 and the degree of opening and closing of the first valve 54, the second valve 55, and the third valve 56, the automatic conveying of slurry and the automatic adjustment of slurry concentration can be realized.

[0037] Specifically, the preferred controller is a PLC.

[0038] In this embodiment, please refer to Figure 1 and Figure 2 A reducing pipe 7 is provided between the first inlet 31 and the inlet 21 of the pump body 2. The inner diameter of the reducing pipe 7 gradually decreases along the direction close to the inlet 21 of the pump body 2, so that the slurry in the slurry inlet pipe 4 flows into the pump body 2 at a faster flow rate, avoiding blockage.

[0039] Furthermore, the inner diameter of the slurry inlet pipe 4 is preferably 5-50 mm larger than the inner diameter of the inlet 21 of the pump body 2, which can achieve excellent slurry conveying effect.

[0040] Similarly, the inner diameter of the flushing pipe 6 is preferably 20-100 mm smaller than the inner diameter of the slurry inlet pipe 4, which can effectively disperse the material at the bottom of the slurry inlet pipe 4.

[0041] In this embodiment, please refer to Figure 1 The inlet 21 of the pump body 2 is set horizontally. Correspondingly, the end of the slurry inlet pipe 4 that is connected to the inlet 21 of the pump body 2 is set horizontally to facilitate the installation of the pump body 2. The other end of the slurry inlet pipe 4 is set vertically so that the slurry in the slurry pool 1 can be sucked into the slurry inlet pipe 4 more effectively.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. 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 top entry slurry pump inlet pipe characterized in that, include: Slurry pool (1); Pump body (2), the inlet (21) axis of the pump body (2) is higher than the top of the slurry tank (1); The first three-way pipe (3) has a first port (31), a second port (32) and a third port (33), and the first port (31) is connected to the inlet (21) of the pump body (2); The slurry inlet pipe (4) has one end connected to the second port (32) and the other end extended into the bottom of the slurry pool (1). The second three-way pipe (5) has a fourth port (51), a fifth port (52) and a sixth port (53). The fourth port (51) is connected to the third port (33), and the fifth port (52) is connected to a clean water inlet pipe (8). The flushing pipe (6) has one end connected to the sixth port (53) and the other end connected to the slurry inlet pipe (4) at the lower side wall of the slurry inlet pipe (4).

2. A top entry slurry pump inlet pipe according to claim 1, wherein A first valve (54) is provided between the fourth port (51) and the third port (33), a second valve (55) is provided between the fifth port (52) and the clean water inlet pipe (8), and a third valve (56) is provided between the sixth port (53) and the flushing pipe (6).

3. A top entry slurry pump inlet pipe according to claim 2, wherein The first valve (54), the second valve (55) and the third valve (56) are all solenoid valves.

4. A suction pipe for a slurry pump according to claim 3, characterized in that It also includes a controller, which is connected to the pump body (2), the first valve (54), the second valve (55) and the third valve (56) respectively.

5. A top entry slurry pump inlet pipe according to claim 4, wherein The controller is set as a PLC.

6. A top entry slurry pump inlet pipe according to claim 1, wherein A reducing pipe (7) is provided between the first port (31) and the inlet (21) of the pump body (2), and the inner diameter of the reducing pipe (7) gradually decreases along the direction close to the inlet (21) of the pump body (2).

7. A top entry slurry pump inlet pipe according to claim 1 or 6, wherein The inner diameter of the slurry inlet pipe (4) is 5-50 mm larger than the inner diameter of the inlet (21) of the pump body (2).

8. A top entry slurry pump inlet pipe according to claim 1, wherein The inner diameter of the flushing pipe (6) is 20-100 mm smaller than the inner diameter of the slurry inlet pipe (4).

9. A top entry slurry pump inlet pipe according to claim 1, wherein The inlet (21) axis of the pump body (2) is set horizontally, one end of the slurry inlet pipe (4) connected to the inlet (21) of the pump body (2) is set horizontally, and the other end of the slurry inlet pipe (4) is set vertically.

10. A top entry slurry pump inlet pipe according to claim 1, wherein The pump body (2) is configured as a slurry pump; And / or, the pump body (2) is installed on one side of the slurry tank (1).

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