Device for preventing gasp during evacuation of slurry pump

Abstract

The utility model relates to the technical field of material conveying, and discloses a slurry pump evacuation gasp preventing device which comprises a slurry pump and a slurry pool arranged on one side of the slurry pump, liquid supplementing mechanisms are arranged in the slurry pool and on the outer side of the slurry pool, dismounting butt joint mechanisms are arranged below the liquid supplementing mechanisms, a floating plate is driven to move downwards when the liquid level is lowered, and the floating plate is driven to move downwards when the liquid level is lowered. Through rolling connection between the rolling wheels and the limiting rolling grooves, friction force in the up-down moving process can be reduced, the floating plate can better move up and down, when the floating plate moves downwards, the connecting rod and the baffle can be driven to move downwards, and when the baffle moves downwards, the clamping and limiting effects on the clamping frame can be relieved; in this way, clear water in the liquid supplementing pipe can penetrate through the clamping frame to flow into the sleeve and is conveyed into the input pipe, even if the liquid level in the slurry pool is too low, the input pipe can suck the clear water, the phenomenon that the impeller is damaged or blocked due to the fact that the input pipe sucks air is prevented, and the service life of the slurry pump is greatly prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of material transportation, in particular to a device for preventing a slurry pump from being evacuated and gasping for air. Background Art

[0002] Slurry pump refers to a kind of machine that increases the energy of solid-liquid mixed medium by centrifugal force (rotation of pump impeller), and converts electrical energy into kinetic energy and potential energy of the medium. It is mainly used in mining, power plants, dredging, metallurgy, chemical industry, building materials and petroleum industries.

[0003] In the actual transportation process, since the amount of conveying medium fed into the slurry pump pool is often not a constant value, it is easy for the conveying medium in the pump pool to be emptied and air to enter the pump body of the slurry pump, which in turn causes the slurry pump to gasp and damage the impeller or cause the slurry pump delivery pipe to be blocked.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] In order to solve the above technical problems that in the actual transportation process, the amount of conveying medium in the slurry pump pool is often not a constant value, the conveying medium in the pump pool is easily evacuated, and air enters the pump body of the slurry pump, which leads to the slurry pump gasping to damage the impeller or cause the slurry pump delivery pipe to be blocked, the basic concept of the technical solution adopted by the utility model is:

[0006] A device for preventing a slurry pump from being evacuated and gasping for air, comprising a slurry pump;

[0007] A slurry pool is arranged on one side of the slurry pump, a liquid replenishing mechanism is arranged inside and outside the slurry pool, a disassembly and assembly docking mechanism is arranged below the liquid replenishing mechanism, and the liquid replenishing mechanism includes an input pipe connected to the output end of one side of the slurry pump:

[0008] The top output end of the slurry pump is connected to an output pipe, the bottom end of the inner wall of the slurry pool is fixedly connected to a limit frame, the inner wall of the limit frame is provided with a limit rolling groove, the inner wall of the limit rolling groove is provided with a roller, the roller is fixedly connected to a floating plate at one end away from the limit rolling groove, the floating plate is movably arranged on the inner wall of the limit frame, the top of the floating plate is fixedly connected to a connecting rod, the connecting rod is fixedly connected to a baffle at one end away from the floating plate, a liquid infusion pipe is arranged above the slurry pool, one end of the liquid infusion pipe is connected to the water inlet, the end of the liquid infusion pipe away from the water inlet is connected to a card frame, the outer wall of the baffle is carded on the inner wall of the card frame, and the outer wall of the limit frame is provided with a connecting groove.

[0009] As a preferred embodiment of the utility model, the disassembly and assembly docking mechanism is connected to a sleeve arranged on the outer wall of one side of the card frame, the inner wall of the sleeve is slidably connected with a connecting sleeve, the outer wall of the connecting sleeve is fixedly connected with a fixing rod, the outer wall of the slurry pool is provided with a slide groove, the bottom end of the inner wall of the slide groove is fixedly connected with a spring, one end of the spring away from the bottom end of the inner wall of the slide groove is fixedly connected to the bottom end of the fixing rod, and the outer wall of the fixing rod is slidably connected to the inner wall of the slide groove.

[0010] As a preferred implementation mode of the present utility model, the number of the limiting rolling grooves and the number of the rollers are two respectively, and the limiting rolling grooves and the rollers are distributed inside the limiting frame in a bilaterally symmetrical structure.

[0011] As a preferred embodiment of the present utility model, the outer wall of the roller fits in close contact with the inner wall of the limiting rolling groove, and the outer wall of the floating plate fits in close contact with the inner wall of the limiting frame.

[0012] As a preferred implementation of the utility model, the outer wall of the baffle is fitted closely to the inner wall of the card frame.

[0013] As a preferred embodiment of the utility model, the outer wall of the connecting sleeve fits snugly with the inner wall of the feed hole opened at the top end of the input pipe.

[0014] As a preferred embodiment of the utility model, the inner wall of the chute provided on the outer wall of the slurry pool fits closely with the outer wall of the fixing rod.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model discloses that as the slurry liquid level decreases, the floating plate floating on it will be driven to move downward. During the descending process, the floating plate will drive the roller to move up and down on the inner wall of the limiting rolling groove. The floating plate can be limited by the limiting frame, so as to ensure that the baffle plate can move in a vertical state up and down. At the same time, the rolling connection between the roller and the limiting rolling groove can reduce the friction during the up and down movement, so that the floating plate can move up and down better. When the floating plate moves downward, it can drive the connecting rod and the baffle plate to move downward. When the baffle plate moves downward, the locking and limiting effect of the card frame can be released, so that the clean water in the liquid replenishment pipe will pass through the card frame and flow into the sleeve, so as to be transmitted to the input pipe. In this way, even if the liquid level in the slurry pool is too low, the input pipe can also suck in clean water, so as to prevent the input pipe from sucking in air and causing damage to the impeller or blockage, thereby greatly extending the service life of the slurry pump.

[0017] According to the utility model, during the installation of the slurry pump, the input pipe is first inserted into the through hole opened on the outer wall of the slurry pool, and during the insertion process, the input pipe will contact and squeeze the connecting sleeve, and the squeezed connecting sleeve will move upward on the inner wall of the sleeve, and at the same time, during the movement of the connecting sleeve, the fixing rod will be driven to move upward, so that the fixing rod will drive the spring to stretch, and as the continuous movement of the input pipe drives the feed hole opened on the top thereof to move to the bottom of the connecting sleeve, the spring can rebound and reset to drive the fixing rod and the connecting sleeve to move downward, and the connecting sleeve will be inserted into the feed hole through the movement of the connecting sleeve, and the installation is completed.

[0018] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In the attached picture:

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the top plan view of the structure of the utility model;

[0022] Figure 3 The schematic diagram of the partial structure of the liquid replenishing mechanism of the utility model Figure 1 ;

[0023] Figure 4 The schematic diagram of the partial structure of the liquid replenishing mechanism of the utility model Figure 2 ;

[0024] Figure 5 It is a schematic diagram of the separation structure of the disassembly and assembly docking mechanism of the utility model.

[0025] In the figure: 1. slurry pump; 2. slurry pool; 31. liquid replenishing mechanism; 311. input pipe; 312. output pipe; 313. limit frame; 314. floating plate; 315. roller; 316. limit rolling groove; 317. connecting rod; 318. baffle; 319. card frame; 3110. liquid replenishing pipe; 3111. connecting groove; 32. disassembly and assembly docking mechanism; 321. connecting sleeve; 322. fixing rod; 323. spring; 324. sleeve. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0027] like Figures 1 to 5As shown, a device for preventing a slurry pump from being evacuated and breathing comprises a slurry pump 1, a slurry pool 2 arranged at one side of the slurry pump 1, a liquid replenishing mechanism 31 is arranged inside and outside the slurry pool 2, a disassembly and assembly docking mechanism 32 is arranged below the liquid replenishing mechanism 31, the liquid replenishing mechanism 31 comprises an input pipe 311 connected to an output end arranged at one side of the slurry pump 1, an output pipe 312 is arranged at the top output end of the slurry pump 1, a limit frame 313 is fixedly connected to the bottom end of the inner wall of the slurry pool 2, a limit rolling groove 316 is arranged on the inner wall of the limit rolling groove 313, and a roller 315 is arranged on the inner wall of the limit rolling groove 316 for rolling The roller 315 is fixedly connected to one end away from the limiting rolling groove 316 with a floating plate 314, and the floating plate 314 is movably arranged on the inner wall of the limiting frame 313. The top of the floating plate 314 is fixedly connected to a connecting rod 317, and the connecting rod 317 is fixedly connected to one end away from the floating plate 314 with a baffle 318. A liquid replenishing pipe 3110 is arranged above the slurry pool 2, and one end of the liquid replenishing pipe 3110 is connected to the water inlet, and the end of the liquid replenishing pipe 3110 away from the water inlet is connected to a card frame 319, the outer wall of the baffle 318 is carded on the inner wall of the card frame 319, and a connecting groove 3111 is provided on the outer wall of the limiting frame 313.

[0028] Furthermore, there are two limiting grooves 316 and two rollers 315 , which are symmetrically distributed inside the limiting frame 313 , so that the left and right sides of the floating plate 314 can be evenly supported simultaneously, thereby maintaining the stability of the floating plate 314 during the up and down movement.

[0029] Furthermore, the outer wall of the roller 315 fits in close contact with the inner wall of the limiting rolling groove 316 , and the outer wall of the floating plate 314 fits in close contact with the inner wall of the limiting frame 313 , thereby further ensuring the stability of the floating plate 314 during the process of moving up and down on the inner wall of the limiting frame 313 .

[0030] Furthermore, the outer wall of the baffle 318 fits snugly with the inner wall of the card frame 319 , so that the inner wall of the card frame 319 can be completely blocked by the baffle 318 , thereby blocking the flow of clean water into the input pipe 311 .

[0031] The disassembly and docking mechanism 32 is connected to a sleeve 324 arranged on the outer wall of one side of the card frame 319, the inner wall of the sleeve 324 is slidably connected with a connecting sleeve 321, the outer wall of the connecting sleeve 321 is fixedly connected with a fixing rod 322, and a slide groove is provided on the outer wall of the slurry pool 2, and a spring 323 is fixedly connected to the bottom end of the inner wall of the slide groove, and one end of the spring 323 away from the bottom end of the inner wall of the slide groove is fixedly connected to the bottom end of the fixing rod 322, and the outer wall of the fixing rod 322 is slidably connected to the inner wall of the slide groove.

[0032] Furthermore, the outer wall of the connecting sleeve 321 fits snugly with the inner wall of the feed hole opened at the top of the input pipe 311, so that when the connecting sleeve 321 is inserted into the feed hole, it can fit perfectly with the inner wall of the feed hole, thereby ensuring that the clean water introduced can be completely transported to the input pipe 311.

[0033] Furthermore, the inner wall of the chute provided on the outer wall of the slurry pool 2 fits snugly with the outer wall of the fixing rod 322, thereby ensuring the fit between the outer wall of the fixing rod 322 and the inner wall of the chute, thereby ensuring the stability of the fixing rod 322 during the up and down movement.

[0034] The implementation principle of the device for preventing the slurry pump from being evacuated and breathing in the present embodiment is as follows: the slurry pump 1 is connected to the slurry pool 2, and then the slurry pump 1 is started to perform the slurry pumping operation. As the slurry pumping time increases, the liquid level of the slurry in the slurry pool 2 will decrease. As the slurry liquid level decreases, the floating plate 314 floating thereon will be driven to move downward. During the descent process, the floating plate 314 will drive the roller 315 to move up and down on the inner wall of the limiting rolling groove 316. The floating plate 314 can be limited by the limiting frame 313, thereby ensuring that the baffle 318 can move in a vertical state. At the same time, the rolling between the roller 315 and the limiting rolling groove 316 The connection can reduce the friction during the up and down movement, so that the floating plate 314 can move up and down better. When the floating plate 314 moves downward, it can drive the connecting rod 317 and the baffle 318 to move downward. When the baffle 318 moves downward, the locking effect on the card frame 319 can be released. In this way, the clean water in the liquid replenishing pipe 3110 will pass through the card frame 319 and flow into the sleeve 324, so as to be transmitted to the input pipe 311. In this way, even if the liquid level in the slurry pool 2 is too low, the input pipe 311 can also suck in clean water, thereby preventing the input pipe 311 from sucking in air and causing damage to the impeller or blockage, thereby greatly extending the service life of the slurry pump 1.

[0035] During the installation of the slurry pump 1, the input pipe 311 is first inserted into the through hole opened on the outer wall of the slurry pool 2. During the insertion process, the input pipe 311 will contact and squeeze the connecting sleeve 321, and the squeezed connecting sleeve 321 will move upward on the inner wall of the sleeve 324. At the same time, during the movement of the connecting sleeve 321, the fixing rod 322 will be driven to move upward, so that the fixing rod 322 will drive the spring 323 to stretch. As the input pipe 311 continues to move, the feed hole opened at its top is driven to move to the bottom of the connecting sleeve 321, and the spring 323 can rebound and reset to drive the fixing rod 322 and the connecting sleeve 321 to move downward. Through the movement of the connecting sleeve 321, it will be inserted into the feed hole to complete the installation.

Claims

1. A device for preventing a slurry pump from being evacuated and gasping, comprising a slurry pump (1); The slurry pool (2) arranged on one side of the slurry pump (1) is characterized in that: A liquid replenishing mechanism (31) is arranged inside and outside the slurry pool (2), a disassembly and assembly docking mechanism (32) is arranged below the liquid replenishing mechanism (31), and the liquid replenishing mechanism (31) comprises an input pipe (311) connected to the output end of one side of the slurry pump (1): The top output end of the slurry pump (1) is connected to an output pipe (312), the bottom end of the inner wall of the slurry pool (2) is fixedly connected to a limit frame (313), the inner wall of the limit frame (313) is provided with a limit rolling groove (316), the inner wall of the limit rolling groove (316) is provided with a roller (315) for rolling, the end of the roller (315) away from the limit rolling groove (316) is fixedly connected to a floating plate (314), the floating plate (314) is movably arranged on the inner wall of the limit frame (313), and the floating plate (314) A connecting rod (317) is fixedly connected to the top end, and a baffle (318) is fixedly connected to one end of the connecting rod (317) away from the floating plate (314). A liquid replenishing pipe (3110) is arranged above the slurry pool (2), and one end of the liquid replenishing pipe (3110) is connected to the water inlet. The end of the liquid replenishing pipe (3110) away from the water inlet is connected to a clamping frame (319), and the outer wall of the baffle (318) is clamped on the inner wall of the clamping frame (319). A connecting groove (3111) is provided on the outer wall of the limit frame (313).

2. A device for preventing a slurry pump from being evacuated and gasped according to claim 1, characterized in that: The disassembly and docking mechanism (32) is connected to a sleeve (324) arranged on the outer wall of one side of the card frame (319); the inner wall of the sleeve (324) is slidably connected to a connecting sleeve (321); the outer wall of the connecting sleeve (321) is fixedly connected to a fixing rod (322); a slide groove is provided on the outer wall of the slurry pool (2); a spring (323) is fixedly connected to the bottom end of the inner wall of the slide groove; one end of the spring (323) away from the bottom end of the inner wall of the slide groove is fixedly connected to the bottom end of the fixing rod (322); and the outer wall of the fixing rod (322) is slidably connected to the inner wall of the slide groove.

3. The device for preventing a slurry pump from being evacuated and gasped according to claim 1, characterized in that: The number of the limiting rolling grooves (316) and the number of the rollers (315) are two respectively, and the limiting rolling grooves (316) and the rollers (315) are distributed inside the limiting frame (313) in a bilaterally symmetrical structure.

4. The device for preventing a slurry pump from being evacuated and gasped according to claim 1, characterized in that: The outer wall of the roller (315) fits in contact with the inner wall of the limiting rolling groove (316), and the outer wall of the floating plate (314) fits in contact with the inner wall of the limiting frame (313).

5. The device for preventing slurry pump from being evacuated and gasped according to claim 1, characterized in that: The outer wall of the baffle (318) fits snugly with the inner wall of the card frame (319).

6. The device for preventing slurry pump from being evacuated and gasped according to claim 2, characterized in that: The outer wall of the connecting sleeve (321) fits snugly with the inner wall of the material inlet hole opened at the top of the input pipe (311).

7. The device for preventing a slurry pump from being evacuated and gasped according to claim 2, characterized in that: The inner wall of the chute provided on the outer wall of the slurry pool (2) fits snugly with the outer wall of the fixing rod (322).

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