Slurry removing device of submerged slurry pump

Abstract

The utility model relates to a slurry removing device of a submerged slurry pump, and belongs to the technical field of slurry treatment. Comprising a sedimentation tank, a movable support arranged at the top of the sedimentation tank, a slurry pump installed in the support, a suction pipe fixedly arranged at the input end of the slurry pump and used for sucking slurry at the bottom of the sedimentation tank, and a mud scraping mechanism installed at the bottom of the suction pipe. When the bracket moves, the mud scraping mechanism is driven to move along with the bracket, so that the main scraping plate and the side scraping plate can scrape sediments such as mud at the bottom of the sedimentation tank and push and gather the sediments towards the suction cover, the suction cover can conveniently remove the scraped sediments, the removal effect on mud composed of substances such as the sediments at the bottom of the sedimentation tank is improved, and the service life of the mud scraping mechanism is prolonged. And one end of the side scraping plate rotating under the elastic force of the spring can be pushed to the inner side wall of the sedimentation tank to automatically adjust the width of the mud scraping mechanism, so that the device can conveniently remove the submerged mud of the sedimentation tanks with different width specifications.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of slurry treatment, and particularly relates to a slurry removal device for a submerged slurry pump. BACKGROUND

[0002] In tunnel engineering excavation construction, large particle sand and coarse particle slurry discharged by a shield machine are first classified and separated by a vibrating screen and a cyclone and then dehydrated and removed, and slurry with a particle size less than 20 microns needs to be naturally separated by a special facility, i.e., a slurry settling tank, fine particle slurry at the upper part is transported to the shield machine for recycling as a lubricant, and slurry sediment with a large specific gravity and a coarse particle size at the lower part needs to be removed. When the slurry is removed, the main part of the slurry pump body is usually arranged above water, and then the slurry is pumped and removed from the submerged slurry by the suction pipe of the slurry pump body.

[0003] The patent with the publication number CN215352163U discloses a slurry removal device in a settling tank using a slurry pump, which comprises: a submerged slurry pump for pumping coarse particle slurry settled at the lower part of the settling tank; and a movable trolley for installing the submerged slurry pump. When the submerged slurry pump is not working, the submerged slurry pump is lifted by a manual hoist and a lifting wire and a hanger to separate from the viscous slurry at the lower part of the settling tank, so as to prevent the slurry from being blocked and affecting the next operation.

[0004] Although the above-mentioned prior art can pump and remove the slurry under the settling tank, part of the sediment such as soil is attached to the inner wall of the settling tank, and the slurry pump is designed to facilitate pumping of the slurry at the bottom of the settling tank, so that the bottom of the suction pipe of the slurry pump has a certain spacing with the bottom of the inner wall of the settling tank, which results in that the suction pipe has a small pumping force on the sediment such as soil attached to the bottom of the settling tank, so that it is difficult to pump and remove the sediment such as soil attached to the bottom of the settling tank, and the removal effect of the sediment attached to the bottom of the settling tank is poor, and thus needs to be improved. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve the above-mentioned problems and provides a slurry removal device for a submerged slurry pump.

[0006] The utility model achieves the above-mentioned purposes by the following technical solutions:

[0007] The utility model relates to a kind of underflow slurry pump slurry removal device, including settling tank, the movable support being set at the top of settling tank, slurry pump is installed in support, suction pipe for pumping the slurry of the bottom of settling tank is fixedly arranged at the input end of slurry pump, and scraping mechanism is installed at the bottom of suction pipe, the bottom end of the suction pipe is fixedly arranged with suction cover, the top of the suction cover is provided with weighting mechanism, the scraping mechanism includes the main scraper that is fixedly arranged at one side of suction cover, and two side scrapers are rotatably arranged at the both sides of main scraper and are inclined, the main scraper and side scraper are all cooperated with the bottom of the inner wall of settling tank, the both ends of the main scraper are fixedly arranged with spring for pushing the two side scrapers to the inner side wall of settling tank, and the end of side scraper away from main scraper is rotatably arranged with roller that cooperates with the inner side wall of settling tank.

[0008] As a further optimization scheme of the utility model, two bottom plates are fixedly arranged at the bottom of the both ends of the support, and wheels that cooperate with the top of the settling tank are rotatably arranged at one side of the bottom plate.

[0009] As a further optimization scheme of the utility model, horizontal plate is fixedly arranged at the inner side of the support, and slurry pump is fixedly installed at the top of horizontal plate.

[0010] As a further optimization scheme of the utility model, sludge discharge pipe is fixedly arranged at the output end of slurry pump, and one end of sludge discharge pipe extends to the outside of support.

[0011] As a further optimization scheme of the utility model, winch for lifting suction cover is fixedly arranged at the top of the inner side of the support.

[0012] As a further optimization scheme of the utility model, the weighting mechanism includes limiting frame fixedly arranged at the top edge of suction cover, and counterweight is arranged in the limiting frame.

[0013] The utility model has the advantages that:

[0014] 1、Through slurry pump, suction cover and other components, cooperating with the movement of support, the slurry at the bottom of settling tank can be pumped and removed, and the scraping mechanism is moved when the support moves, so that the main scraper and side scraper can scrape the sediment such as soil at the bottom of settling tank after moving, and push the sediment to suction cover to gather, so that the removed sediment can be removed by suction cover, the removal effect of slurry composed of sediment and other substances at the bottom of settling tank is improved, and under the spring force, the end of the rotating side scraper can be pushed to the inner side wall of settling tank to automatically adjust the width of scraping mechanism, so that the device can remove underflow slurry of settling tank with different width specifications.

[0015] 2. By rotating the roller, the resistance and wear between the side scraper and the inner wall of the sedimentation tank during movement of the mud scraping mechanism can be reduced, the service life of the side scraper is prolonged, the mud scraping mechanism can be sunk at the bottom of the sedimentation tank through the weight of the weight mechanism, the subsequent mud scraping mechanism is facilitated to scrape mud at the bottom of the sedimentation tank, the hoist can be used to lift and lower the suction cover and other components, and the device is transported to other sedimentation tanks for suction and removal of the underflow mud by moving the suction cover and the support upward after the mud is removed. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the overall structure schematic diagram of the utility model;

[0017] Figure 2 is the local structure internal connection schematic diagram of the sedimentation tank, the main scraper and the side scraper of the utility model;

[0018] Figure 3 is the utility model Figure 1 A structure enlarged view;

[0019] Figure 4 is the utility model Figure 2 B structure enlarged view.

[0020] In the drawing: 1, sedimentation tank;2, support;21, bottom plate;22, wheel;23, transverse plate;3, slurry pump;31, suction pipe;32, suction cover;33, limiting frame;34, counterweight;35, hoist;36, mud discharge pipe;4, main scraper;41, side scraper;42, spring;43, roller. DETAILED DESCRIPTION

[0021] The following detailed description of the application in conjunction with the drawings, it is necessary to point out that the following detailed description is only used to further illustrate the application, can not be understood as limiting the scope of the application, the skilled person can make some non-essential improvements and adjustments to the application according to the above application.

[0022] EMBODIMENT

[0023] As Figures 1-4 shown, a kind of underflow slurry pump mud removal device, including sedimentation tank 1, support 2, slurry pump 3, suction pipe 31 and mud scraping mechanism, sedimentation tank 1 can collect and deposit the sewage generated in the construction process such as tunnel excavation, wherein the mud and other deposits of sewage can be deposited in the bottom of sedimentation tank 1 to form mud, the top of sedimentation tank 1 two sides are equipped with the widened way of small vehicle and pedestrian together, it is the common structure of existing sedimentation tank, here is not too much redundant description.

[0024] As Figure 1As shown, the support 2 is located on the top of the sedimentation tank 1 and is movable. Two base plates 21 are fixed at the bottom of both ends of the support 2. One side of the base plate 21 is equipped with a wheel 22 that rotatably abuts against the top of the sedimentation tank 1. The base plate 21 can connect the wheel 22 and the support 2. By rolling the wheel 22, it is convenient for the staff to push the support 2 to move.

[0025] like Figure 1 and Figure 3 As shown, the slurry pump 3 is installed inside the bracket 2. A horizontal plate 23 is fixedly provided on the inner side of the bracket 2. The slurry pump 3 is fixedly installed on the top of the horizontal plate 23. The horizontal plate 23 can connect the bracket 2 and the slurry pump 3, and can support and fix the slurry pump 3.

[0026] like Figures 1-4 As shown, the suction pipe 31 is fixedly installed at the input end of the slurry pump 3 and is used to suction the slurry at the bottom of the sedimentation tank 1. The suction pipe 31 is fixedly equipped with a suction hood 32 at its bottom end. The slurry pump 3 is fixedly equipped with a sludge discharge pipe 36 at its output end. One end of the sludge discharge pipe 36 extends to the outside of the support 2. When the slurry pump 3 is running, it can suction and remove the slurry at the bottom of the sedimentation tank 1 through the suction pipe 31 and the suction hood 32. The suctioned slurry will be discharged through the sludge discharge pipe 36 to the filter press storage tank of the external mud and water treatment system, and fed into the external filter press for final dewatering treatment. After forming a mud cake, it will be discharged. The discharge part of the slurry is a public technology and will not be described in detail here.

[0027] like Figure 1 , Figure 2 and Figure 4 As shown, the top of the suction hood 32 is provided with a weighting mechanism, which includes a limiting frame 33 fixedly installed at the top edge of the suction hood 32. The top of the suction hood 32 is provided with a counterweight 34 located inside the limiting frame 33. The limiting frame 33 can limit the counterweight 34 on the top of the suction hood 32. The counterweight 34 can be placed directly or detachably installed on the top of the suction hood 32 using screws. Both the limiting frame 33 and the counterweight 34 can add weight to the suction hood 32 and the sludge scraping mechanism, so that the sludge scraping mechanism can sink to the bottom of the sedimentation tank 1, which facilitates the subsequent sludge scraping of the bottom of the sedimentation tank 1 by the sludge scraping mechanism.

[0028] like Figure 1 , Figure 2 and Figure 4As shown, the sludge scraping mechanism is installed at the bottom of the suction pipe 31. The sludge scraping mechanism includes a main scraper 4 fixedly installed on one side of the suction hood 32, and two side scrapers 41 rotatably installed on both sides of the main scraper 4 and inclined. The main scraper 4 and the side scrapers 41 are both in contact with the bottom of the inner wall of the sedimentation tank 1. The two ends of the main scraper 4 are fixedly provided with springs 42 for pushing the two side scrapers 41 toward the inner wall of the sedimentation tank 1. The side scrapers 41 are rotatably provided with rollers 43 at the end away from the main scraper 4, which are in contact with the inner wall of the sedimentation tank 1. By rotating the rollers 43, the resistance and wear between the side scrapers 41 and the inner wall of the sedimentation tank 1 can be reduced when the sludge scraping mechanism moves, thus extending the service life of the side scrapers 41.

[0029] During the sludge removal process, the support 2 can be moved. When the support 2 moves, it will drive the sludge scraping mechanism to move as well. After the main scraper 4 and the side scraper 41 move, they can scrape off the sediment such as mud at the bottom of the sedimentation tank 1 and push the sediment 1 towards the suction hood 32 to gather and collect. This makes it easier for the suction hood 32 to remove the scraped sediment and improve the removal effect on the sludge composed of sediment and other substances at the bottom of the sedimentation tank 1. Under the elastic force of the spring 42, one end of the rotated side scraper 41 can be pushed against the inner wall of the sedimentation tank 1 to automatically adjust the overall width of the sludge scraping mechanism.

[0030] like Figure 1 , Figure 3 and Figure 4 As shown, a winch 35 for lifting and lowering the suction hood 32 is fixedly installed on the top inner side of the support 2. The suction hood 32 is fixedly connected to the bottom of the hoisting rope of the winch 35. The winch 35 can lift and lower the suction hood 32 and other components, which makes it convenient to transfer the device to other sedimentation tanks 1 for the suction and removal of submerged mud by moving the suction hood 32 and the support 2 after the mud is removed.

[0031] It should be noted that, in the use of this submersible slurry pump mud removal device, the first step is to use the winch 35 to slowly lower the suction hood 32 and the sludge scraping mechanism into the inner bottom of the sedimentation tank 1, so that the sludge scraping mechanism sinks into the inner bottom of the sedimentation tank 1 under the weight of the weighting mechanism. Then, the slurry pump 3 is turned on. When the slurry pump 3 is running, it can remove the mud from the bottom of the sedimentation tank 1 by suction pipe 31 and suction hood 32. The mud after suction will be discharged through sludge discharge pipe 36.

[0032] Then, the support 2 is slowly pushed to move. When the support 2 moves, it will drive the sludge scraping mechanism to move as well. After the main scraper 4 and the side scraper 41 move, they can scrape off the mud and other sediments at the bottom of the sedimentation tank 1 and push the sediments 1 towards the suction hood 32 to gather them. This makes it easier for the suction hood 32 to remove the scraped sediments and improve the removal effect on the sludge composed of sediments and other substances at the bottom of the sedimentation tank 1. Under the elastic force of the spring 42, one end of the rotated side scraper 41 can be pushed against the inner wall of the sedimentation tank 1 to automatically adjust the overall width of the sludge scraping mechanism. This makes it easier for the device to remove submerged sludge of different widths in the sedimentation tank 1. Furthermore, the rotation of the roller 43 can reduce the resistance and wear between the side scraper 41 and the inner wall of the sedimentation tank 1 when the sludge scraping mechanism moves, thus extending the service life of the side scraper 41.

[0033] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A submersible slurry pump mud removal device, comprising a sedimentation tank (1), a movable support (2) disposed on the top of the sedimentation tank (1), a slurry pump (3) installed in the support (2), a suction pipe (31) fixedly disposed at the input end of the slurry pump (3) for suctioning slurry from the bottom of the sedimentation tank (1), and a sludge scraping mechanism installed at the bottom of the suction pipe (31), characterized in that: The suction pipe (31) is fixedly provided with a suction cover (32) at the bottom end. The suction cover (32) is provided with a weighting mechanism at the top. The sludge scraping mechanism includes a main scraper (4) fixedly provided on one side of the suction cover (32) and two side scrapers (41) rotatably provided on both sides of the main scraper (4) and inclined. The main scraper (4) and the side scrapers (41) are both in contact with the bottom of the inner wall of the sedimentation tank (1). The two ends of the main scraper (4) are fixedly provided with springs (42) for pushing the two side scrapers (41) towards the inner wall of the sedimentation tank (1). The side scraper (41) is rotatably provided with a roller (43) that is in contact with the inner wall of the sedimentation tank (1) at the end away from the main scraper (4).

2. The slurry removal device for a submersible slurry pump according to claim 1, characterized in that: The support (2) has two base plates (21) fixed at both ends of the bottom, and one side of the base plate (21) is provided with a wheel (22) that fits against the top of the sedimentation tank (1).

3. The slurry removal device for a submersible slurry pump according to claim 1, characterized in that: A horizontal plate (23) is fixedly installed on the inner side of the bracket (2), and the slurry pump (3) is fixedly installed on the top of the horizontal plate (23).

4. The slurry removal device for a submersible slurry pump according to claim 1, characterized in that: The output end of the slurry pump (3) is fixedly provided with a mud discharge pipe (36), one end of which extends to the outside of the support (2).

5. The slurry removal device for a submersible slurry pump according to claim 1, characterized in that: The top inner side of the bracket (2) is fixed with a winch (35) for lifting and lowering the suction hood (32).

6. The slurry removal device for a submersible slurry pump according to claim 1, characterized in that: The weighting mechanism includes a limiting frame (33) fixed at the top edge of the suction hood (32), and a counterweight (34) located inside the limiting frame (33) is provided on the top of the suction hood (32).

Images