A crab claw type washer and method of using the same

Abstract

The present invention relates to a crab claw type washer and a method for using the same. The crab claw type washer comprises: a fixing device, a water inlet, and a main body, and is characterized in that the main body comprises an end cover, a bolt, a cylinder, a sewage pipe, and a flushing part. The end cover and the cylinder and the flushing part are connected by bolts to form a certain closed space; the flushing part comprises a ring plate welded with a small flushing tube matching the flushing area and orientation; a circular baffle is welded at the bottom of the sewage pipe for height positioning; the fixing device is a detachable hanging structure. The structure of the present invention is easy to disassemble and clean, has a more uniform spraying effect, and has a better anti-blocking effect.

Description

Technical Field

[0001] The invention relates to the technical field of filtering equipment, in particular to a crab claw type washer and a use method thereof. Background Art

[0002] Many filtering equipment such as rotary vacuum filters and flip filter discs will encounter scaling problems to varying degrees, especially the wet hopper of the semi-aqueous phosphoric acid rotary filter, which will cause serious scaling and clogging due to the hydration of semi-aqueous phosphogypsum. If the inner surface of the hopper is not cleaned in time, the volume of the hopper cavity will become smaller and smaller. In severe cases, the deposits will climb up along the inner wall of the hopper to the filter disc, thus affecting the normal operation and discharge of the filter.

[0003] The traditional method is to use a tubular flusher to intermittently or continuously flush the inner cavity of the hopper. The tubular flusher is usually made of a simple steel pipe. A small spray hole is drilled at a certain distance directly below or diagonally below the steel pipe. Sometimes, in order to enhance the spraying effect, a square water distribution plate is welded at each water outlet.

[0004] This type of tubular flusher reduces the risk of clogging of the slag bucket to a certain extent, but it also has the following shortcomings in actual use:

[0005] 1. The spraying effect is uneven. Usually, the small holes near the water inlet spray more water, while the parts far away from the water inlet spray less water. This phenomenon is particularly obvious when the flushing water volume is small. The uneven spraying effect is extremely unfavorable to ensure the flushing of the slag bucket.

[0006] 2. The main pipe is very prone to scaling and clogging, and it is also very difficult to clean the inside of the narrow and long pipe. Once the inside of the pipe is clogged, the flushing effect of the tubular flusher will be greatly reduced.

[0007] 3. Tube-type flushers are mostly fixed and welded with dispersed ear plates and have many points, which makes it inconvenient to remove and clean the main pipe. Summary of the invention

[0008] In view of the deficiencies in the prior art, the object of the present invention is to provide a crab claw type flusher with a better structure, more uniform spraying effect, better anti-clogging effect and more convenient cleaning.

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] A crab claw type flusher comprises: a fixing device, a water inlet, and a main body, characterized in that the main body comprises an end cover, a cylinder, and a flushing piece; the end cover and the cylinder, and the flushing piece are connected by bolts to form a certain enclosed space; the contact surfaces of the end cover and the cylinder, and the flushing piece and the cylinder are provided with grooves, and the grooves are equipped with sealing rings; the flushing piece comprises a ring plate and a flushing tube, and the flushing tube matches the flushing area and orientation; the water inlet is a tangential water inlet structure, located in the upper half of the cylinder, tangent to the side wall of the cylinder; the fixing device is a detachable hanging structure.

[0011] Preferably, the bolt is a movable bolt, and the end cover, cylinder and ring plate are all provided with flanges, and the flanges are provided with U-shaped grooves in the same position.

[0012] Preferably, the flushing tube is a detachable structure, which is connected to the ring plate by means of a nut locking method; the contact surface between the flushing tube and the ring plate is provided with a groove and equipped with a corresponding sealing ring.

[0013] Preferably, the flushing tube is a segmentally detachable structure, and the connection methods include nut locking and clamp connection; the contact surface between the flushing tube and the ring plate is provided with a groove and a corresponding sealing ring.

[0014] Preferably, the detachable hanging structure is connected to the cylinder by means of a nut locking method.

[0015] Preferably, a sewage pipe is provided at the center position of the ring plate, and the sewage pipe is at the same height as the water inlet; a hole slightly larger than the outer diameter of the sewage pipe is opened at the center position of the ring plate, and there is a gap fit between the sewage pipe and the hole; a circular baffle is welded to the lower half of the sewage pipe, and the contact surface between the circular baffle and the flushing part is provided with a groove, and the groove is equipped with a corresponding sealing ring.

[0016] A method for using a crab claw type washer comprises the following steps:

[0017] A. Lock the cylinder with the end cover and the flushing piece to form a certain closed space to ensure uniform water discharge. The flushing liquid enters the cylinder tangentially from the water inlet to generate a vortex to flush the inner wall. Large particles and crystal precipitates can be discharged to the outside of the flusher through the sewage pipe first.

[0018] B. When there is too much scale, loosen the nut of the bolt, and then rotate the bolt along the U-shaped groove with the pin as the center, separate the end cover and the cylinder or the cylinder and the flushing part for separate cleaning;

[0019] C. Pull out the sewage pipe from the flushing part for cleaning; loosen the nut to remove the small flushing tube from the flushing part for cleaning; loosen the nut and clamp to disassemble the small flushing tube in sections for cleaning.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The crab claw type flusher is different from the traditional tube type flusher in that the crab claw type flusher integrates and assembles all flushing small tubes on the same flushing part to facilitate cleaning operations. Each flushing small tube can be disassembled and taken out from the flushing part for cleaning operations. Furthermore, the flushing small tube with a longer length is a segmented detachable structure (such as a connection structure using a nut locking, a clamp method, etc.). It is convenient to clean the flushing water pipe with a longer length.

[0022] 2. The crab claw type flusher provides a detachable hanging structure. Different from the fixed connection of the traditional tube type flusher, the crab claw type flusher is a detachable hanging structure. Usually, the number of hanging points is only 2 to 3 points. After removing the hanging rod, the entire crab claw type flusher can be taken out and cleaned, which is very convenient to operate.

[0023] 3. The crab claw type flusher provides a quick-open end cover structure, which allows the inside of the cylinder to be cleaned more conveniently by quickly disassembling the end covers at both ends of the cylinder through the movable bolts.

[0024] 4. The crab claw type flusher provides a closed space structure. The contact surfaces between the end cover and the cylinder, and between the flushing part and the cylinder are provided with grooves and corresponding sealing rings to play a sealing role. It is used to buffer a certain amount of flushing water to ensure uniform water discharge from each flushing part, and at the same time offset the pressure generated by the flushing liquid with a certain pressure;

[0025] 5. The crab claw type flusher provides a tangential water inlet structure. When the flusher is working, the water flow will generate a vortex with a certain flow rate inside the cylinder. The vortex is more conducive to ensuring the uniformity of water output from each flushing part, even under the condition of small water volume. At the same time, the rotating vortex will also have a certain degree of flushing and self-cleaning effect on the inner wall of the cylinder and the flushing part, so the risk of scaling and clogging inside the flusher will be greatly reduced.

[0026] 6. The crab claw type flusher provides a movable insertable drain pipe structure. When the flusher is working, larger particles, crystal precipitates, etc. in the flushing water will be preferentially discharged from the middle drain pipe outside the flusher, which reduces the risk of each flushing part being blocked. When the drain pipe is blocked, the drain pipe can be quickly removed and cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A left side schematic diagram of a crab claw washer;

[0028] Figure 2 A schematic top view of a crab claw washer;

[0029] Figure 3Schematic diagram of the U-shaped groove;

[0030] Figure 4 Schematic diagram of the sealing structure;

[0031] Explanation of the reference numerals in the accompanying drawings: 1. fixing device; 2. end cover; 3. bolt; 4. water inlet; 5. cylinder; 6. drain pipe; 7. flushing part; 8. main body; 9. flange; 10. U-shaped groove; 3-1. nut; 6-1. annular baffle; 7-1. ring plate; 7-2. flushing small tube; 7-3. hole; 11. groove; 12. sealing ring. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] according to Figure 1 , Figure 3 , Figure 4 As shown, the present invention provides the following technical solutions: a crab claw type flusher, comprising: a fixing device 1, a water inlet 4, a main body 8, the main body 8 including an end cover 2, a cylinder 5, a sewage pipe 6, and a flushing part 7. The fixing device 1 is a detachable hanging structure, which is connected to the cylinder 5 by a nut locking method. The water inlet 4 is a tangential water inlet structure, located in the upper half of the cylinder 5, and tangent to the side wall of the cylinder 5. The end cover 2 and the cylinder 5, and the flushing part 7 are connected by bolts 3, forming a certain closed space. The contact surfaces of the end cover 2 and the cylinder 5, and the flushing part 7 and the cylinder 5 are provided with a groove 11, and the groove 11 is provided with a sealing ring 12. The bolt 3 is a movable bolt, and the end cover 2, the cylinder 5, and the ring plate 7-1 are provided with a flange 9, and the flange 9 has a U-shaped groove 10 with the same position. The bolt 3 can be rotated by a pin shaft, and the movable bolt can be disassembled and separated by loosening the nut and rotating the movable bolt. The flushing part 7 includes a ring plate 7-1 and a plurality of flushing tubes 7-2. Each flushing tube 7-2 is connected by a nut locking method, integrated and assembled on the ring plate 7-1, and the flushing tubes 7-2 match the flushing area and orientation, and can be disassembled and taken out separately. The flushing tube 7-2 and the ring plate 7-1 are provided with a groove 11 on the contact surface, and are equipped with a corresponding sealing ring 12. The longer flushing tube 7-2 is a structure that can be disassembled in sections, for example, using a connection structure such as a nut locking method or a clamp method. The contact surface between the flushing tube 7-2 and the ring plate 7-1 is provided with a groove 11, and is equipped with a corresponding sealing ring 12.

[0034] The drain pipe 6 is located at the center of the ring plate 7-1, and the height of the drain pipe 6 is consistent with that of the water inlet 4; a hole 7-3 slightly larger than the outer diameter of the drain pipe 6 is opened at the center of the ring plate 7-1, and there is a clearance fit between the drain pipe 6 and the hole 7-3, which can be easily removed when blocked; a circular baffle 6-1 is welded to the lower half of the drain pipe 6 for height positioning, and a groove 11 is provided on the contact surface between the circular baffle 6-1 and the flushing member 7, and the groove 11 is equipped with a corresponding sealing ring 12 to play a sealing role.

[0035] In summary, the fixing device 1 is a suspension rod, which is used to suspend the entire weight of the crab claw type washer. When the scale inside the washer is serious, the crab claw type washer can be easily removed and cleaned;

[0036] The flanges 9 of the end cover 2, the cylinder 5 and the flushing member 7 are all provided with U-shaped grooves 10 at the same position, and the movable bolt 3 can be rotated by the pin shaft. After loosening the nut 3-1, the movable bolt 3 can be disassembled by rotating it through the U-shaped groove 10. It does not need to be disassembled as a whole before opening. The inside of the cylinder 5 can be cleaned by quick disassembly.

[0037] The flushing pipe 7-2 matching the flushing area and orientation is assembled on the ring plate 7-1 of the flushing member 7. The long flushing pipe 7-2 is designed to be detachable in sections to further facilitate the cleaning of the long flushing water pipe. A hole 7-3 slightly larger than the outer diameter of the sewage pipe 6 is opened at the center of the ring plate 7-1. There is a clearance fit between the sewage pipe 6 and the hole 7-3, so that the sewage pipe 6 can be easily taken out for cleaning.

[0038] The contact surfaces between the end cap 2 and the cylinder 5, the flushing member 7 and the cylinder 5, and the annular baffle 6-1 and the flushing member 7 are provided with grooves 11 and corresponding sealing rings 12 to play a sealing role. The closed space formed between the end cap 2 and the cylinder 5, and the cylinder 5 and the flushing member 7 is used to buffer a certain amount of flushing water to ensure uniform water discharge from each flushing member, and at the same time can offset the pressure generated by the flushing liquid of a certain pressure.

[0039] When the flusher is working, the flushing liquid enters the cylinder 5 tangentially from the water inlet 4, and the water flow will generate a vortex with a certain flow rate inside the cylinder 5. The larger particles and crystal precipitates carried in the flushing liquid can be preferentially discharged to the outside of the flusher through the sewage pipe 6, which reduces the risk of each flushing tube 7-2 being blocked. When the sewage pipe 6 is blocked, it can be quickly disassembled through the swing bolt, taken out and cleaned. The tangential water inlet design can generate a vortex with a certain flow rate inside the cylinder 5 when the flusher is working, and produce different degrees of flushing effect on the inner wall of the cylinder 5 and the flushing part 7, which plays a certain self-cleaning role, which reduces the risk of pipeline blockage caused by crystal precipitates of flushing water to a certain extent.

[0040] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is limited by the appended claims and their equivalents.

Claims

1. A crab claw type flusher, comprising: A fixing device (1), a water inlet (4), and a main body (8), characterized in that the main body (8) comprises an end cover (2), a cylinder (5), and a flushing member (7); the end cover (2) and the cylinder (5), and the cylinder (5) and the flushing member (7) are connected by bolts (3) to form a certain closed space; a groove (11) is provided on the contact surface between the end cover (2) and the cylinder (5), and between the flushing member (7) and the cylinder (5), and the groove (11) is provided with a sealing ring (12); the flushing member (7) comprises a ring plate (7-1) and a plurality of flushing small tubes (7-2), and the flushing small tubes (7-2) are connected to the flushing area and orientation; the flushing tube (7-2) is a detachable structure, connected to the ring plate (7-1) by means of a nut locking method; the contact surface between the flushing tube (7-2) and the ring plate (7-1) is provided with a groove (11) and a corresponding sealing ring (12); the water inlet (4) is a tangential water inlet structure, located in the upper half of the cylinder (5) and tangent to the side wall of the cylinder (5); the fixing device (1) is a detachable hanging structure; the bolt (3) is a movable bolt, and the end cover (2), the cylinder (5) and the ring plate (7-1) are all provided with a flange (9), and the flange (9) has a U-shaped groove (10) with the same position.

2. A crab claw type flusher according to claim 1, characterized in that: The flushing tube (7-2) is a segmentally detachable structure, and the connection methods include nut locking and clamp connection. The contact surface between the flushing tube (7-2) and the ring plate (7-1) is provided with a groove (11) and a corresponding sealing ring (12).

3. A crab claw type flusher according to claim 1, characterized in that: The detachable hanging structure is connected to the cylinder (5) by means of a nut locking method.

4. A crab claw type flusher according to claim 1, characterized in that: A sewage pipe (6) is provided at the center of the annular plate (7-1), and the sewage pipe (6) is at the same height as the water inlet (4); a hole (7-3) slightly larger than the outer diameter of the sewage pipe (6) is opened at the center of the annular plate (7-1), and a clearance fit is formed between the sewage pipe (6) and the hole (7-3); a circular baffle (6-1) is welded to the lower half of the sewage pipe (6), and a groove (11) is provided on the contact surface between the circular baffle (6-1) and the flushing member (7), and the groove (11) is provided with a corresponding sealing ring (12).

5. The method for using a crab claw type washer according to claim 4, characterized in that: The following steps are involved: A. The cylinder (5) is locked with the end cover (2) and the flushing member (7) to form a certain closed space to ensure uniform water discharge. The flushing liquid enters the cylinder (5) tangentially from the water inlet (4) to generate a vortex to flush the inner wall. Large particles and crystal precipitates can be preferentially discharged to the outside of the flusher through the sewage pipe (6); B. When there is too much scale, loosen the nut of the bolt (3), and then rotate the bolt (3) along the U-shaped groove (10) with the pin as the center, so as to separate the end cover (2) from the cylinder (5) or the cylinder (5) from the flushing part (7) for separate cleaning; C. Pull out the sewage pipe (6) from the flushing part (7) for cleaning; loosen the nut to remove the flushing small pipe (7-2) from the flushing part (7) for cleaning; loosen the nut and the clamp to disassemble the flushing small pipe (7-2) in sections for cleaning.

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