Slurry pump for slurry of sedimentation tank

Abstract

The slurry pump structurally comprises a pump body, a slurry inlet is formed in the pump body, the front section of the slurry inlet is connected with a front monitoring pipe, an upper installation pipe is arranged at the top end of the front monitoring pipe, a monitoring assembly is installed in the upper installation pipe, and the monitoring assembly comprises a rotating seat and a drawing seat provided with a flow meter. The upper installation pipe with a half opening is arranged on the front monitoring pipe, the flow meter is installed on the drawing seat which can be drawn out independently after rotation, and therefore the flow meter can be drawn out independently after being rotated. The drawing seat and the rotating seat are spliced in the upper mounting pipe to plug the opening area alternately, the pipeline does not need to be closed, the drawing seat and the flow meter can be drawn out independently after the rotating seat is rotated to the opening area to plug the opening area, and therefore the flow meter is replaced on the basis that treatment continuity is guaranteed. Therefore, normal speed regulation operation of the mud pump is ensured.

Description

Technical Field

[0001] The utility model relates to the field of sludge treatment, in particular to a sludge pump for sedimentation tank sludge. Background Art

[0002] The mud pump for sedimentation tank mud is a pump specially designed to handle mud in sedimentation tanks. This pump is widely used in sewage treatment, mining, construction and other industries involving mud treatment. Since the mud contains a large amount of solid particles and impurities, these particles will cause wear to the impeller, bearings and other parts inside the pump. At the same time, there is some high-viscosity mud, which will cause greater loss to the pump when the flow rate is high.

[0003] Therefore, in order to cope with these situations, a flow meter is provided at the inlet pipe of the mud pump. The flow meter can measure the flow rate of the mud in the pipeline to indirectly reflect its fluidity, so as to reduce the pump speed through parameter control to reduce the shear force on the mud and the wear of the pump. However, with the increase of usage time, the flow meter will have problems such as wear and aging, which may easily affect the coordination between the flow meter and the mud pump and make it impossible for the mud pump to adjust its speed well. However, in the prior art, the flow meter interface is directly open, so that when replacing the flow meter, the pipeline needs to be closed, otherwise there is a risk of mud spraying out at high or low flow rates. However, closing the pipeline will affect the overall process and cause inconvenience to the handling. Utility Model Content

[0004] In view of the above problems, the utility model provides a mud pump for sedimentation tank mud, which structure includes a pump body and a motor connected to an impeller in the pump body through a transmission shaft, the pump body is provided with a mud inlet and a mud outlet, wherein the front section of the mud inlet is connected to a front monitoring pipe, and a monitoring assembly with a flow meter is installed on the front monitoring pipe; an upper mounting pipe extending upward is provided at the top of the front monitoring pipe, and the monitoring assembly is installed in the upper mounting pipe, and the monitoring assembly includes a pull-out seat provided with a flow meter and a rotating seat installed in the upper mounting pipe in combination with the pull-out seat; a semi-disc-shaped sealing portion is provided at the connecting port between the upper mounting pipe and the front monitoring pipe, and an open area of ​​the connecting port where the sealing portion is not provided is set as an open portion, and the flowmeter on the pull-out seat extends into the front monitoring pipe through the open portion.

[0005] Furthermore, the pull-out seat and the rotating seat are both semi-cylindrical and their cross-sections are assembled into a cylindrical structure. The rotating seat is rotatably engaged in the upper mounting tube. The pull-out seat rotates together with the rotating seat in the upper mounting tube and is pulled out of the upper mounting tube separately after rotation.

[0006] Furthermore, a circular groove is provided on the inner wall of the top end of the upper mounting tube, and a limiting ring is nested in the groove; the pull-out seat and the rotating seat are both limited in their upward freedom by the limiting ring above the open area.

[0007] Furthermore, the inner side of the limiting ring is divided into a limiting section and a release section, the diameter of the release section is greater than or equal to the inner diameter of the upper mounting tube, and the diameter of the release section is smaller than the inner diameter of the upper mounting tube; the outer side of the rotating seat is provided with a groove engaged with the limiting section, and the outer side of the pulling seat is provided with a narrowing portion with a diameter smaller than the limiting section, and the bottom end of the narrowing portion is provided with a plump portion that abuts against the rotating seat and the inner wall of the upper mounting tube.

[0008] Furthermore, the length from the limiting ring to the bottom of the rotating seat is greater than the length from the bottom end of the flow meter to the top end of the full part or to the bottom end of the narrow part.

[0009] Furthermore, a flange-type sealing cover is fixed to the top of the pull-out seat, and the pull-out seat is fixedly mounted on the upper mounting tube through the sealing cover, and the inner side of the sealing cover fixed to the upper mounting tube abuts against the top of the rotating seat.

[0010] Furthermore, a hexagonal bolt head is provided at the top end of the cover.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model arranges an upper mounting tube with a half opening on the front monitoring tube, allows the pull-out seat and the rotating seat to be spliced ​​and cooperated in the upper mounting tube to alternately block the opening area, and allows the flow meter to be installed on the pull-out seat that can be pulled out separately after rotation, so that the equipment does not need to close the pipeline when in use, and the pull-out seat and the flow meter can be pulled out separately for replacement after the rotating seat is rotated to block the opening area, thereby replacing the flow meter while ensuring the continuity of the processing, thereby cooperating with the mud pump to ensure the normal speed regulation operation of the mud pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the overall structure of a mud pump for sedimentation tank mud.

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the cooperation between the monitoring component and the front monitoring tube of the utility model.

[0015] Figure 3 It is a schematic diagram of the three-dimensional cross-section structure of the monitoring component and the front monitoring tube of the utility model.

[0016] Figure 4 It is a schematic diagram of the top view of the cross-section structure of the limit ring and the upper mounting tube of the utility model.

[0017] Figure 5 It is a schematic diagram of the side section structure of the monitoring assembly and the front monitoring pipe of the utility model.

[0018] In the figure: 1. Pump body; 2. Motor; 3. Drive shaft; 4. Front monitoring tube; 5. Monitoring assembly;

[0019] 11. Mud inlet; 12. Mud outlet; 41. Upper mounting pipe; 42. Blocking part; 43. Opening part; 51. Pull-out seat; 52. Flow meter; 53. Sealing cover; 54. Rotating seat; 55. Limiting ring;

[0020] 51a, narrowing part; 51b, plump part; 55a, limiting section; 55b, releasing section. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] Examples, such as Figure 1-Figure 5 As shown: The utility model provides a mud pump for sedimentation tank mud, which structure includes a pump body 1 and a motor 2 connected to an impeller in the pump body 1 through a transmission shaft 3. The pump body 1 is provided with a mud inlet 11 and a mud outlet 12. The motor 2 drives the impeller in the pump body 1 to rotate through the transmission shaft 3, thereby transferring the mud from the mud inlet 11 to the mud outlet 12;

[0023] Among them, the front section of the mud inlet 11 is connected to the front monitoring pipe 4, and the front monitoring pipe 4 is equipped with a monitoring assembly 5 with a flow meter 52. The top of the front monitoring pipe 4 is provided with an upper mounting pipe 41 extending upward, and the monitoring assembly 5 is installed in the upper mounting pipe 41. Specifically, the monitoring assembly 5 includes a pull-out seat 51 equipped with the flow meter 52 and a rotating seat 54 installed in the upper mounting pipe 41 in combination with the pull-out seat 51. A semi-disc-shaped blocking portion 42 is provided at the connecting port between the upper mounting pipe 41 and the front monitoring pipe 4, and an open area of ​​the connecting port where the blocking portion 42 is not provided is set as an open portion 43, and the flow meter 52 on the pull-out seat 51 extends into the front monitoring pipe 4 through the open portion 43;

[0024] The pull-out seat 51 and the rotating seat 54 are both semi-cylindrical and their cross sections are assembled into a cylindrical structure. The rotating seat 54 is rotatably engaged in the upper mounting tube 41, so that the pull-out seat 51 and the rotating seat 54 can be gap-matched with the minimum gap in the upper mounting tube 41. It is known to those skilled in the art that the gap can be sealed, such as by nesting sealing rings, adding sealing gaskets, etc., which will not be described in detail here;

[0025] In addition, a flange-type cover 53 is fixed to the top of the pull-out seat 51, and the pull-out seat 51 is fixedly mounted to the upper mounting tube 41 through the cover 53. The inner side of the cover 53 fixed to the upper mounting tube 41 abuts against the top of the rotating seat 54. In this embodiment, a hexagonal bolt head is provided at the top of the cover 53 to facilitate the rotational drive of the pull-out seat 51.

[0026] What is needed is that the pull-out seat 51 rotates together with the rotating seat 54 in the upper mounting tube 41 and is pulled out of the upper mounting tube 41 alone after rotation. To achieve this purpose, a circular groove is provided on the inner wall of the top end of the upper mounting tube 41, and a limiting ring 55 is nested in the groove. After the pull-out seat 51 and the rotating seat 54 are rotated to the upper side of the opening portion 43, the upward freedom is limited by the limiting ring 55. For this reason, the inner side of the limiting ring 55 is divided into a limiting section 55a and a release section 55b. The diameter of the release section 55b is greater than or equal to the inner diameter of the upper mounting tube 41, and the diameter of the release section 55b is smaller than the inner diameter of the upper mounting tube 41. It can be known that the limiting section 55a is located above the opening portion 43.

[0027] At the same time, a groove engaging with the limiting section 55a is provided on the outer side of the rotating seat 54, and a narrowing portion 51a having a smaller diameter than the limiting section 55a is provided on the outer side of the pull-out seat 51. A plump portion 51b is provided at the bottom end of the narrowing portion 51a to abut against the rotating seat 54 and the inner wall of the upper mounting tube 41, so that the rotating seat 54 rotated to this point is restricted by the limiting section 55a and blocked at the opening 43, and the pull-out seat 51 rotated to the release section 55b can be pulled out of the upper mounting tube 41 alone, and the pull-out seat 51 in the installed state is rotated to the limiting section 55a, so that the flow meter 52 extends from the lower opening 43 into the front monitoring tube 4, and the pull-out seat 51 is restricted by the limiting section 55a and cannot be pulled out;

[0028] It should be noted that the length from the limiting ring 55 to the bottom of the rotating seat 54 is greater than the length from the bottom end of the flow meter 52 to the top end of the full portion 51b or to the bottom end of the narrowed portion 51a.

[0029] During disassembly, the flow rate of upstream sludge can be reduced, and the sealing cover 53 can be removed from the upper mounting tube 41. Then, the sealing cover 53 can be pulled upward to drive the pull-out seat 51 to rise until the plump portion 51b hits the limiting ring 55. At this time, the bottom end of the flow meter 52 is higher than the blocking portion 42. Then, the pull-out seat 51 is rotated to make the pull-out seat 51 and the rotating seat 54 rotate in the upper mounting tube 41, and the rotating seat 54 is rotated to the top of the opening portion 43. At this time, the rotating seat 54 is restricted by the limiting section 55a and blocked at the opening portion 43, and the pull-out seat 51 rotated to the release section 55b can be raised upward alone. The mounting tube 41 is pulled out and replaced, and then the pull-out seat 51 with the replaced flow meter 52 is embedded downward into the upper mounting tube 41. The pull-out seat 51 is then rotated to the limit section 55a and continued to be pressed downward, so that the flow meter 52 extends from the opening 43 below into the front monitoring tube 4. At the same time, the sealing cover 53 also contacts the top of the upper mounting tube 41 and is fixed to the upper mounting tube 41, thereby fixing the pull-out seat 51 and the rotating seat 54 together to the upper mounting tube 41. On the basis of ensuring the continuity of the processing, the flow meter 52 can be replaced, thereby ensuring the normal operation of the mud pump.

[0030] It should be noted that, during disassembly, the disassembly can be carried out directly or the flow rate of upstream sludge can be reduced. When the flow in the pipeline is relatively full, a certain amount of mud may be drawn into the upper mounting tube 41 when the pull-out seat 51 is pulled upward. After the rotating seat 54 rotates to seal the opening 43, the mud is in the other half of the space of the upper mounting tube 41. At this time, the pull-out seat 51 is pulled outward, and the mud height decreases as the pull-out seat 51 and the flow meter 52 are pulled out. After the new pull-out seat 51 and the flow meter 52 are inserted, the mud restores the original liquid level and is squeezed back into the pipeline from the opening 43 by the pull-out seat 51 after a new rotation. The two vertical sides of the cross section of the rotating seat 54 are tangent to and against the inner wall of the upper mounting tube 41. Even if there is a certain gap, the lifting force of the mud in the pipeline on the rotating seat 54 when the rotating seat 54 is against the opening 43 cannot cause it to deviate to a large extent, and after the sealing structure is filled, these displacements will be reduced.

[0031] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A mud pump for sedimentation tank mud, comprising a pump body and a motor connected to an impeller in the pump body through a transmission shaft, wherein the pump body is provided with a mud inlet and a mud outlet, and characterized in that: The front section of the mud inlet is connected to a front monitoring pipe, and a monitoring component with a flow meter is installed on the front monitoring pipe; An upper mounting tube extending upward is provided at the top of the front monitoring tube, and the monitoring assembly is installed in the upper mounting tube. The monitoring assembly includes a pull-out seat equipped with a flow meter and a rotating seat installed in the upper mounting tube in combination with the pull-out seat; A semi-disc-shaped plugging portion is provided at the connecting port between the upper mounting tube and the front monitoring tube, and an open area of ​​the connecting port without the plugging portion is set as an open portion, and the flow meter on the pull-out seat extends into the front monitoring tube through the open portion.

2. A mud pump for sedimentation tank mud according to claim 1, characterized in that: The pull-out seat and the rotating seat are both semi-cylindrical and their cross-sections are assembled into a cylindrical structure. The rotating seat is rotatably engaged in the upper mounting tube. The pull-out seat rotates together with the rotating seat in the upper mounting tube and is pulled out of the upper mounting tube alone after rotation.

3. A mud pump for sedimentation tank mud according to claim 2, characterized in that: A circular groove is provided on the inner wall of the top end of the upper mounting tube, and a limiting ring is nested in the groove; The pull-out seat and the rotating seat are both provided with a limiting ring above the open portion area to limit the upward freedom.

4. A mud pump for sedimentation tank mud according to claim 3, characterized in that: The inner side of the limiting ring is divided into a limiting section and a release section, wherein the diameter of the release section is greater than or equal to the inner diameter of the upper mounting tube, and the diameter of the release section is smaller than the inner diameter of the upper mounting tube; The outer side of the rotating seat is provided with a groove engaged with the limiting section, the outer side of the pulling seat is provided with a narrowing portion with a diameter smaller than the limiting section, and the bottom end of the narrowing portion is provided with a plump portion that abuts against the rotating seat and the inner wall of the upper mounting tube.

5. A mud pump for sedimentation tank mud according to claim 4, characterized in that: The length from the limiting ring to the bottom of the rotating seat is greater than the length from the bottom end of the flow meter to the top end of the full part or to the bottom end of the narrow part.

6. A mud pump for sedimentation tank mud according to claim 2, characterized in that: A flange-type sealing cover is fixed on the top of the pull-out seat, and the pull-out seat is fixedly mounted on the upper mounting tube through the sealing cover, and the inner side of the sealing cover fixed to the upper mounting tube abuts against the top of the rotating seat.

7. A mud pump for sedimentation tank mud according to claim 6, characterized in that: A hexagonal bolt head is arranged on the top of the cover.

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