Anti-clogging abrasive water-jet slurry device

Abstract

The application discloses a clogging-preventing abrasive water flushing and pulp making device, which comprises an abrasive tank and a main pipeline installed in the abrasive tank, a plurality of water flushing hole groups for flushing water to the outside are formed on the main pipeline, and a water outlet valve and a sewage valve are connected in parallel with the water outlet end of the main pipeline. During the pulp making process, the water outlet valve keeps a certain opening degree, so that water in the main pipeline always flows towards the sewage valve, the formed water flow can carry impurities, thereby reducing the aggregation of the impurities at the water flushing hole groups, and since the number of the impurities aggregated at the water flushing hole groups is reduced, the clogging probability of the water flushing holes can be effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of high-pressure water jet sandblasting cleaning technology, and in particular to an anti-clogging abrasive flushing and slurry making device. Background Technology

[0002] During the use of high-pressure water jet sandblasting equipment, each sand distribution hopper in the abrasive tank needs to be equipped with a sand flushing nozzle to flush with water, thereby homogenizing the abrasive into a slurry, so as to ensure that the abrasive can be supplied to the descaling nozzle quickly, evenly and stably.

[0003] In existing technologies (such as the anti-clogging abrasive tank disclosed in Chinese patent document CN220637508U), because the drain valve is located at the end of the main pipeline and remains closed during the slurry preparation process, water can only be discharged from the flushing nozzle into the abrasive tank via the main pipeline. During this process, the water has difficulty flowing towards the drain valve, making it difficult for impurities in the water to accumulate there. Instead, they move with the water flow to the flushing nozzle, easily clogging the small flushing holes. In particular, in this technical solution, the flushing nozzle is connected to the main pipeline via a vertical pipe, which provides a deposition space for impurities. Furthermore, impurities entering the vertical pipe are unlikely to return to the annular main pipeline and be discharged from the drain valve due to gravity. Therefore, this structure is even more prone to clogging the flushing holes. Summary of the Invention

[0004] The technical problem to be solved by this invention is how to reduce the probability of impurities in the water clogging the flushing holes.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A clog-resistant abrasive flushing and slurry-making device includes an abrasive tank and a flushing and slurry-making assembly. The abrasive tank has a sand-distributing hopper at its lower part. The flushing and slurry-making assembly includes a main pipeline that extends from the outside of the abrasive tank to the inner cavity of the abrasive tank and flushes and slurries the abrasive inside the tank. The main pipeline extends into the inner cavity of the abrasive tank and runs along the sand-distributing hoppers before finally exiting the abrasive tank and connecting to an external water outlet valve. The bottom surface of the main pipeline has a set of flushing holes facing downwards to flush the abrasive towards each sand-distributing hopper.

[0007] The main pipeline is arranged almost horizontally inside the abrasive tank, and a Y-type filter is connected downstream of the outlet valve.

[0008] The main pipeline is arranged in a ring inside the abrasive tank and passes continuously above each sand distribution hopper. Each of the aforementioned flushing hole groups is correspondingly set above each sand distribution hopper.

[0009] The main pipe extends horizontally out of the abrasive tank to the water outlet valve, and a branch pipe is arranged along the water flow direction La of the main pipe out of the abrasive tank, and a sewage valve is arranged on the branch pipe.

[0010] A bend pipe is arranged between the water outlet end of the branch pipe and the sewage valve, the bend pipe is downwardly bent, the horizontal section of the bend pipe is communicated with the water outlet end of the branch pipe, and the vertical section of the bend pipe is communicated with the sewage valve.

[0011] Each water outlet hole of the water outlet hole group is arranged in an inverted taper shape with a wide upper part and a narrow lower part.

[0012] The main pipe is composed of a plurality of pipe sections connected end to end, and adjacent pipe sections are arranged in detachable connection.

[0013] The pipe sections include a plurality of sand flushing pipes and a plurality of connecting pipes, which are alternately connected, and the sand flushing pipes are formed with a water outlet hole group.

[0014] The main pipe is arranged as a plastic pipe.

[0015] The water outlet valve is located in the vertical direction of the water flow direction La of the main pipe out of the abrasive tank.

[0016] Specifically, the anti-clogging abrasive water flushing and pulp making device includes an abrasive tank and a main pipe installed therein, the main pipe is formed with a plurality of water outlet hole groups for flushing water to the outside, and the water outlet end of the main pipe is connected in parallel with a water outlet valve and a sewage valve. During pulp making, the water outlet valve maintains a certain opening degree, so that water in the main pipe always flows towards the sewage valve, and the formed water flow can carry impurities, thereby reducing the accumulation of impurities at the water outlet hole group. Since the amount of impurities accumulated at the water outlet hole group is reduced, the probability of clogging of the water outlet hole is effectively reduced.

[0017] The abrasive tank is formed with a plurality of sand distribution hoppers, and each sand distribution hopper is arranged above a water outlet hole group. By arranging the water outlet hole group directly above each sand distribution hopper, it is ensured that the water flow uniformly covers the abrasive in each sand distribution hopper, thereby achieving efficient and uniform pulp making.

[0018] The main pipe is composed of a plurality of pipe sections connected end to end, and adjacent pipe sections are arranged in detachable connection. In the prior art, the main pipe has a whole structure, and once the inside is blocked or damaged, it is very inconvenient to maintain. In the present application, a plurality of detachable pipe sections are connected to form the main pipe. When impurities block or damage a pipe section, the pipe section can be easily disassembled for cleaning or replacement, without the need to disassemble the whole main pipe, thereby greatly reducing the maintenance difficulty and cost and improving the maintenance efficiency of the device.

[0019] The pipe section comprises a plurality of sand washing pipes and a plurality of connecting pipes, which are alternately connected, and a plurality of water flushing hole groups are formed on the sand washing pipes. The pipe section is divided into sand washing pipes and connecting pipes, the sand washing pipes are specially provided with water flushing hole groups, and the connecting pipes only play a connecting role, so that the functions of various components are clear. The water flushing function prone to blockage is concentrated in the sand washing pipes, and the connecting pipes only take the responsibility of communication, so that only the sand washing pipes need to be checked during maintenance, thereby reducing the maintenance workload.

[0020] The sand washing pipes are made of plastic. The plastic pipes are corrosion-resistant, and the smooth inner wall can reduce the attachment of impurities, have the characteristics of simple construction and maintenance, and long service life. Moreover, the plastic material can effectively avoid electrochemical corrosion reaction with steel shots, oxide scales and other impurities.

[0021] The water flushing hole groups comprise a central water flushing hole and a plurality of diffusion water flushing holes which are uniformly distributed in the circumferential direction of the central water flushing hole. The multi-hole design enhances the dispersibility of the water flow, the central hole provides core impact, and the diffusion holes assist in expanding the coverage range, thereby optimizing the uniformity of the slurry making.

[0022] The central water flushing hole is vertically arranged, and the diffusion water flushing holes are arranged in a direction away from the central water flushing hole from the inner wall to the outer wall of the main pipeline. The central water flushing hole vertically downwardly flushes water, which can form a direct and powerful impact on the abrasives in the central area of the sand separation hopper; the diffusion water flushing holes are arranged in a direction away from the center and extend in the direction away from the center, which can diffuse the impact force to the surrounding, and effectively flush the abrasives in the edge area of the sand separation hopper. This design makes the water flushing range more reasonable, and the water flow can more uniformly act on the abrasives in the entire sand separation hopper, thereby improving the uniformity of the slurry making.

[0023] The water outlet valve is located in the vertical direction of the water flow La at the water outlet end of the main pipeline; and the sewage valve is located in the straight line direction of the water flow La at the water outlet end of the main pipeline. The sewage valve is arranged in the straight line direction of the water flow, so that the impurities are more likely to move to the direction of the sewage valve under the action of inertia during the flow of the water flow, thereby forming aggregation, which is conducive to the subsequent centralized discharge. The water outlet valve is located in the vertical direction, which can meet the normal water outlet demand without affecting the guiding effect of the sewage valve on the impurities. Compared with other possible directions, this layout is more conducive to the aggregation and discharge of the impurities to the sewage valve, thereby enhancing the effect of sewage discharge and anti-blocking.

[0024] A Y-shaped filter is further connected downstream of the water outlet valve. The Y-shaped filter can further filter the water passing through the water outlet valve, and the filtered water is discharged from the Y-shaped filter and can be reused in other pipelines with low water quality requirements, low pressure and large water quantity.

[0025] A bend pipe is arranged between the water outlet end of the main pipe and the blowdown valve, which is downwardly bent, and the horizontal section of the bend pipe is communicated with the water outlet end of the main pipe, and the vertical section of the bend pipe is communicated with the blowdown valve. The downwardly bent bend pipe utilizes the gravity effect, so that the impurities in the water flow are more likely to sink due to the gravity and enter the vertical section when flowing to the blowdown valve. Compared with the horizontal pipe connection, the bend pipe design can more effectively guide the impurities to move to the blowdown valve and stay, thereby avoiding the backflow of the impurities and further reducing the risk of the blockage of the flush hole group. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a cross-sectional view of the anti-clogging abrasive flush slurry making device;

[0027] Figure 2 is a connection schematic view (top view) of the main pipe, the water outlet valve, the blowdown valve, the Y-type filter and the bend pipe;

[0028] Figure 3 is a connection schematic view (perspective view) of the main pipe, the blowdown valve and the bend pipe;

[0029] Figure 4 is a structural schematic view of the sand flushing pipe;

[0030] Figure 5 is Figure 4 is a cross-sectional view at B-B in FIG. 6;

[0031] Figure 6 is a schematic view of the position relationship of the main pipe, the sand distribution hopper and the abrasive tank.

[0032] The various reference numerals in the drawings represent:

[0033] 1, abrasive tank; 11, sand distribution hopper;

[0034] 2, main pipe; 21, sand flushing pipe; 22, connecting pipe; 23, branch pipe;

[0035] 3, flush hole group; 31, central flush hole; 32, diffusion flush hole;

[0036] 4, water outlet valve;

[0037] 5, blowdown valve;

[0038] 6, Y-type filter;

[0039] 7, bend pipe. DETAILED DESCRIPTION

[0040] The present application will be further described in detail below in combination with the drawings and specific examples.

[0041] Examples

[0042] As Figures 1 to 6As shown, the anti-blocking abrasive water flushing and pulp making device of the embodiment comprises an abrasive tank 1 and a water flushing and pulp making assembly. A lower part of the abrasive tank 1 is provided with a sand distributor 11. The water flushing and pulp making assembly comprises a main pipeline 2 leading from outside of the abrasive tank 1 to an inner cavity of the abrasive tank 1 and flushing the abrasive in the abrasive tank 1. The main pipeline 2 extends into the inner cavity of the abrasive tank 1, is arranged along each sand distributor 11 and finally penetrates the abrasive tank 1 to connect to an external water outlet valve 4. A bottom surface of the main pipeline 2 is provided with a water flushing hole group 3 facing each sand distributor 11. The main pipeline 2 is arranged in a nearly horizontal manner in the abrasive tank 1. A Y-type filter 6 is further connected downstream of the water outlet valve 4. The main pipeline 2 is arranged in a ring shape in the abrasive tank 1 and sequentially and continuously passes above each sand distributor 11. Each water flushing hole group 3 is correspondingly arranged above each sand distributor 11. The main pipeline 2 extends horizontally to the water outlet valve 4 after penetrating the abrasive tank 1. A branch pipeline 23 is arranged in a water flow direction La after the main pipeline 2 penetrates the abrasive tank 1. The branch pipeline 23 is provided with a blowdown valve 5. A bend pipe 7 is arranged between an outlet of the branch pipeline 23 and the blowdown valve 5. The bend pipe 7 is downwardly bent. A horizontal section of the bend pipe 7 is in communication with the outlet of the branch pipeline 23. A vertical section of the bend pipe 7 is in communication with the blowdown valve 5. Each water outlet hole of the water flushing hole group 3 is arranged in an inverted taper shape with a wide upper part and a narrow lower part. The main pipeline 2 is composed of a plurality of pipe sections which are connected in a head-to-tail manner. Adjacent pipe sections are detachably connected. The pipe sections comprise a plurality of sand flushing pipes 21 and a plurality of connecting pipes 22 which are alternately connected. The sand flushing pipes 21 are provided with the water flushing hole group 3. The main pipeline 2 is arranged in a plastic pipe. The water outlet valve 4 is arranged in a vertical direction of the water flow direction La after the main pipeline 2 penetrates the abrasive tank 1.

[0043] Specifically, the anti-clogging abrasive water flushing and pulp making device comprises an abrasive tank 1, which is in a cylindrical shape and is formed with a plurality of sand distribution hoppers 11 at the bottom, the sand distribution hoppers 11 are uniformly distributed along the circumference of the abrasive tank 1, and each sand distribution hopper 11 is installed with a sand valve at the bottom end. It also comprises a main pipeline 2, which is fixed in the middle and upper part of the inner cavity of the abrasive tank 1 through a pipe clamp, the main pipeline 2 is composed of a plurality of pipe sections connected end to end, and adjacent pipe sections are threadedly connected. Specifically, the pipe sections comprise a plurality of sand flushing pipes 21 and a plurality of connecting pipes 22, which are alternately connected. The sand flushing pipe 21 is arranged in an arc-shaped plastic pipe, each sand flushing pipe 21 is formed with a water flushing hole group 3 for flushing water to the outside abrasive, and each water flushing hole group 3 is opposite to one sand distribution hopper 11; the water flushing hole group 3 comprises a central water flushing hole 31 and four diffusion water flushing holes 32 uniformly distributed around it, the central water flushing hole 31 is vertically arranged, and the diffusion water flushing holes 32 are arranged obliquely from the inner wall to the outer wall of the main pipeline 2 in a direction away from the central water flushing hole 31; the connecting pipe 22 is arranged in a hose. The water outlet end of the main pipeline 2 is connected in parallel with a water outlet valve 4 and a sewage valve 5, specifically, a three-way pipe is installed at the water outlet end of the main pipeline 2, one water outlet of the three-way pipe is connected with the water outlet valve 4, and the other water outlet is connected with the sewage valve 5. More specifically, the water outlet valve 4 is located in the vertical direction of the water flow direction La of the water outlet end of the main pipeline 2; the sewage valve 5 is located in the straight line direction of the water flow direction La of the water outlet end of the main pipeline 2. A bend pipe 7 is arranged between the water outlet end of the main pipeline 2 and the sewage valve 5, the bend pipe 7 is bent downward, the horizontal section thereof is connected with the water outlet end of the main pipeline 2, and the vertical section thereof is connected with the sewage valve 5. In addition, a Y-shaped filter 6 is connected downstream of the water outlet valve 4. In this embodiment, the water flushing hole group 3 is directly formed on the sand flushing pipe 21, and there is no vertical pipe for connecting the sand flushing nozzle and the main pipeline in the prior art, so that the deposition space of impurities is completely eliminated. Moreover, the pipe wall of the sand flushing pipe 21 is arranged to be 1-2 mm, which is thinner than the pipe wall of about 5 mm of the sand flushing nozzle in the prior art, so that the travel of impurities from the inside to the outside of the sand flushing pipe 21 is shorter, and it is more difficult to be blocked in the process.

[0044] In the use of the anti-clogging abrasive water flushing slurry making device, first, the flushing pipe 21 and the connecting pipe 22 are alternately connected to form the main pipe 2, and the main pipe 2 is fixed in the middle and upper part of the inner cavity of the abrasive tank 1 by the pipe clamp, so that each water flushing hole group 3 is opposite to one sand hopper 11. The abrasive tank 1 is filled with packed abrasive such as steel shot, and the water source enters the main pipe 2 from the inlet end, and the water body is flushed out from the center water flushing hole 31 and the four evenly distributed diffusion water flushing holes 32 in the circumferential direction of the center water flushing hole 31, and the packed abrasive in the sand hopper 11 is fluidized and slurry is formed, and the fluidized abrasive is then discharged through the sand valve for use by the external descaling nozzle. At the same time of slurry making, in order to ensure that the water body in the main pipe 2 is always in a high-speed flow state and to avoid or reduce the deposition of impurities at the water flushing hole group 3, the water outlet valve 4 is always in an open state, so that the fluid can quickly flow out of the water outlet valve 4 to form a water flow with a relatively high flow rate to push the impurities to move in the main pipe 2 without deposition. At this time, the sewage valve 5 is in a closed state, the water body flowing out of the water outlet valve 4 enters the Y-type filter 6, and after being filtered by the Y-type filter 6, the clean water body returns to the water supply pool for secondary use, and the sewage containing impurities is discharged. When the slurry making is completed, the water outlet valve 4 is closed, and the sewage valve 5 is opened, at this time, the impurities accumulated at the sewage valve 5 are discharged.

[0045] Although the present application has been disclosed in the above preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make many possible changes and modifications to the technical solutions of the present application, or modify equivalent embodiments with equivalent changes, without departing from the scope of the technical solutions of the present application, by using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the content of the technical solutions of the present application, shall fall within the scope of protection of the technical solutions of the present application.

Claims

1. A clogging-preventing abrasive water-flushing slurry making device, comprising an abrasive tank (1) and a water-flushing slurry making assembly, a sand separating hopper (11) being arranged at the lower part of the abrasive tank (1), the water-flushing slurry making assembly comprising a main pipeline (2) leading from outside of the abrasive tank (1) to the inner cavity of the abrasive tank (1) and performing water-flushing slurry making on the abrasive in the abrasive tank (1), characterized in that, The main pipe (2) extends into the inner cavity of the abrasive tank (1), and then is arranged along each sub-tank (11) and finally penetrates out of the abrasive tank (1) to be connected to the water outlet valve (4) outside. The bottom surface of the main pipe (2) is downwardly provided with a water flushing hole group (3) for flushing abrasive; The main pipe (2) is arranged in a ring shape in the abrasive tank (1) and continuously passes above each sub-tank (11) in turn. Each water flushing hole group (3) is correspondingly arranged above each sub-tank (11). The main pipe (2) extends horizontally to the water outlet valve (4) after penetrating out of the abrasive tank (1). Meanwhile, a branch pipe (23) is arranged in the water flow direction of the main pipe (2) after penetrating out of the abrasive tank (1). The branch pipe (23) is provided with a sewage valve (5). A bend pipe (7) is arranged between the water outlet end of the branch pipe (23) and the sewage valve (5). The bend pipe (7) is downwardly bent. The horizontal section of the bend pipe (7) is in communication with the water outlet end of the branch pipe (23), and the vertical section of the bend pipe (7) is in communication with the sewage valve (5). The water outlet valve (4) is located in the vertical direction of the water flow direction of the main pipe (2) after penetrating out of the abrasive tank (1).

2. The anti-clogging abrasive water-jet mill of claim 1, wherein, The main pipe (2) is arranged in a nearly horizontal manner in the abrasive tank (1). The downstream of the water outlet valve (4) is further connected with a Y-shaped filter (6).

3. The anti-clogging abrasive water-jet mill of claim 1 wherein, Each water outlet hole of the water flushing hole group (3) is arranged in an inverted taper shape with a wide upper part and a narrow lower part.

4. The anti-clogging abrasive water-jet mill of claim 1 wherein, The main pipe (2) is composed of a plurality of pipe sections connected end to end. Adjacent pipe sections are detachably connected.

5. The anti-clogging abrasive water-jet mill of claim 4 wherein, The pipe sections include a plurality of sand flushing pipes (21) and a plurality of connecting pipes (22), which are alternately connected. The sand flushing pipes (21) are formed with the water flushing hole group (3).

6. The anti-clogging abrasive water-jet mill of claim 1 wherein, The main pipe (2) is arranged in a plastic pipe.

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