Reverse pickling device for metal filter element

Abstract

The utility model provides a reverse pickling device for a metal filter element, belongs to the technical field of filter element cleaning, and solves the technical problems that hard fine particles blocked on the inner side of the filter element are closer to blocking points during cleaning from inside to outside, the blocking degree of the hard fine particles is more severe, and the cleaning effect is reduced. According to the reverse pickling device for the metal filter element, a cylindrical through hole and a cleaning tank are sequentially formed in a cleaning barrel from top to bottom, a filter element body is placed in the cleaning tank, and a bottom valve is installed at the bottom of the cleaning barrel; the cleaning mechanism comprises a cylinder, the output end of the cylinder is provided with a motor through a mounting plate, the mounting plate and the motor extend into the through hole, the output end of the motor is provided with a cleaning shaft, the cleaning shaft extends into the filter element body, and the periphery of the cleaning shaft is sleeved with a sealing plate; the nozzle is used for rotary cleaning, and a certain inclined angle is formed between the sprayed acid liquid or cleaning liquid and the inner wall of the filter element body, so that hard fine particles can be shoveled up equivalently, and the cleaning effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of filter element cleaning, and relates to a reverse pickling device, in particular to a reverse pickling device for a metal filter element. Background Art

[0002] Metal filter element is a filter element product used to filter and separate solid particles, liquids or gases, usually made of metal materials. Metal filter element has the advantages of high temperature resistance, corrosion resistance, pressure resistance, long life, etc., and is suitable for filtering needs in various industrial fields.

[0003] At present, during the use of metal filter elements, the filter elements are easily blocked, resulting in a decrease in the filter flux. Therefore, the metal filter elements need to be acid-washed at intervals.

[0004] After searching, it is found that a Chinese patent document discloses a metal filter element reverse pickling device [Application No.: CN202021031397.8; Publication No.: CN212440316U]. This pickling liquid does not need to immerse the filter element, and the amount of acid used is small; the filter element can still achieve a good cleaning effect under limited acid concentration.

[0005] Although the utility model can reduce the amount of acid during pickling, since the filter element is blocked at the inner side of the filter element, and the utility model pickles the filter element from the inside to the outside, the acid cannot completely remove the hard fine particles (such as metal chips, sand, etc.), and such cleaning will only make the hard fine particles blocked on the inner side of the filter element closer to the blockage point, making the blockage degree of the hard fine particles more serious, thereby reducing the cleaning effect. Utility Model Content

[0006] The purpose of the utility model is to address the above-mentioned problems in the existing technology and propose a reverse pickling device for a metal filter element. The technical problem to be solved by the utility model is that when cleaning from the inside to the outside, the hard and fine particles blocked on the inner side of the filter element are closer to the blocking point, the hard and fine particles are more severely blocked, and the cleaning effect is reduced.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A reverse pickling device for a metal filter element, comprising a cleaning box;

[0009] A cleaning cylinder, wherein a cylindrical through hole and a cleaning groove are sequentially opened in the cleaning cylinder from top to bottom, the through hole and the cleaning groove are connected, the filter element body is placed in the cleaning groove, and a bottom valve is fixed at the bottom of the cleaning cylinder;

[0010] A cleaning mechanism, the cleaning mechanism comprises a cylinder, a motor is fixed to the output end of the cylinder through a mounting plate, the mounting plate and the motor extend into the through hole, a cleaning shaft is fixed to the output end of the motor, the cleaning shaft extends into the filter element body, a sealing plate is slidingly sleeved on the periphery of the cleaning shaft, the sealing plate covers the filter element body, a liquid spraying cavity is provided in the cleaning shaft, nozzles are evenly fixed on the periphery of the cleaning shaft, the nozzles are connected with the liquid spraying cavity, an acid liquid pipe and a cleaning pipe are respectively fixed on the sealing plate, a guide cavity is provided in the sealing plate, and connecting holes are evenly provided on the periphery of the cleaning shaft corresponding to the sealing plate, and the guide cavity is connected with the connecting hole;

[0011] There is a certain degree of inclination angle between the spray head and the outer surface of the cleaning shaft.

[0012] The working principle of the utility model is as follows: when cleaning, firstly, the filter element body is vertically placed in the cleaning tank, then the cylinder is started to extend, so that the motor drives the cleaning shaft to move downward until the sealing plate covers the filter element body, then the motor is started to rotate the cleaning shaft, and at the same time, acid is provided to the liquid spraying cavity through the acid liquid pipe, and the acid is sprayed from the nozzle to remove the particles blocked in the filter element body, and hard and fine particles are shoveled off at the same time, until the cleaning tank is full of acid liquid, then the acid is stopped from being provided to the liquid spraying cavity, and the bottom valve is opened at this time, and the acid will be discharged from the bottom valve. During the discharge process, the acid located at the interval cavity will enter the filter element body from the outside of the filter element body, and the particles blocked on the inner side of the filter element body will be washed down, taken down together by the acid liquid, and finally discharged from the bottom valve; after pickling, the cleaning liquid is provided to the liquid spraying cavity through the cleaning pipe, and the cleaning liquid is sprayed from the nozzle to clean the inner wall of the filter element body, and the blocked residue is cleaned off at the same time, and the blocked residue cleaned off is discharged from the bottom valve along with the cleaning liquid.

[0013] Two limit plates are symmetrically fixed to the periphery of the cleaning shaft, and the two limit plates are clamped outside the sealing plate.

[0014] By adopting the above structure, the sealing performance between the cleaning shaft and the sealing plate is improved, and the acid or cleaning liquid is effectively prevented from entering the through hole and damaging the motor.

[0015] A positioning seat is annularly fixed in the through hole, positioning holes are evenly opened on the positioning seat, the sealing plate is against the positioning seat, positioning columns are evenly fixed on the sealing plate, and the positioning columns are inserted into the positioning holes.

[0016] By adopting the above structure, the sealing performance of the sealing plate to the cleaning tank is improved, and the acid or cleaning liquid is effectively prevented from leaking into the through hole.

[0017] Sealing pads are arranged between the sealing plate and the end of the filter element body and between the bottom of the cleaning tank and the end of the filter element body.

[0018] By adopting the above structure, the sealing performance of both ends of the cleaning tank is further improved. During pickling, the acid liquid is not easy to leak, thus ensuring the effective utilization rate of the acid liquid.

[0019] A liquid inlet cavity and a storage cavity are provided in the cleaning cylinder in an annular manner from top to bottom, the liquid inlet cavity is located at the periphery of the cleaning tank, the storage cavity is located at the periphery of the through hole, the cleaning tank is connected with the liquid inlet cavity and a guide valve is fixed at the connection point, the guide valve is located at the bottom of the cleaning tank, a liquid pump is fixed in the liquid inlet cavity, the storage cavity is connected with the liquid inlet cavity and a liquid inlet valve is fixed at the connection point, and the storage cavity is connected with the cleaning tank and a liquid discharge valve is fixed at the connection point.

[0020] By adopting the above structure, the filter element body can be acid-washed twice to improve the cleaning effect.

[0021] The cleaning mechanism is installed in the cleaning box, the cylinder is fixed on the top of the inner cavity of the cleaning box, a support plate is fixed in the cleaning box, a slide plate slides on the support plate, the cleaning cylinder is fixed on the slide plate, the bottom valve passes through the slide plate, a collecting chamber is formed between the slide plate and the bottom of the inner cavity of the cleaning box, and a sealing door is provided on the hinge outside the cleaning box.

[0022] The above structure facilitates the collection of acid and cleaning liquid and improves the safety during cleaning.

[0023] Compared with the prior art, the utility model has the following advantages:

[0024] 1. The utility model uses a rotating nozzle for cleaning, and the sprayed acid or cleaning liquid will have a certain degree of inclination angle with the inner wall of the filter element, which is equivalent to shoveling up hard and fine particles, thereby improving the cleaning effect;

[0025] 2. The utility model is provided with a liquid inlet cavity and a storage cavity, which can perform acid washing on the filter element body twice to improve the washing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the cleaning mechanism and cleaning cylinder structure.

[0027] Figure 2 It is a schematic diagram of the internal structure of the cleaning cylinder.

[0028] Figure 3 It is a schematic diagram of the internal structure of the cleaning cylinder.

[0029] Figure 4 It is a schematic diagram of the cleaning shaft structure.

[0030] Figure 5 It is a schematic diagram of the internal structure of the cleaning box.

[0031] Figure 6It is a schematic diagram of the overall structure of the utility model.

[0032] In the figure:

[0033] 10. Filter element body;

[0034] 20. cleaning cylinder; 21. through hole; 211. positioning seat; 212. positioning hole; 22. cleaning tank; 221. partition cavity; 23. liquid inlet cavity; 24. storage cavity; 25. diversion valve; 26. liquid pump; 27. liquid inlet valve; 28. liquid discharge valve; 29. ​​bottom valve;

[0035] 30. Cleaning mechanism; 31. Cylinder; 32. Mounting plate; 33. Motor; 34. Sealing plate; 341. Guide cavity; 342. Positioning column; 35. Cleaning shaft; 351. Spray cavity; 352. Connecting hole; 353. Limiting plate; 354. Spray head; 36. Acid pipe; 37. Cleaning pipe; 38. Fixing rod;

[0036] 40. cleaning box; 41. support plate; 42. collecting chamber; 43. sealing door;

[0037] 50. Skateboard. DETAILED DESCRIPTION

[0038] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0039] Example

[0040] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown;

[0041] A reverse pickling device for a metal filter element, comprising a cleaning box 40; a cleaning cylinder 20, wherein a cylindrical through hole 21 and a cleaning tank 22 are sequentially opened in the cleaning cylinder 20 from top to bottom, wherein the through hole 21 and the cleaning tank 22 are connected, wherein a filter element body 10 is placed in the cleaning tank 22, wherein the filter element body 10 is placed longitudinally, wherein a bottom valve 29 is fixed to the bottom of the cleaning cylinder 20, wherein one end of the filter element body 10 is against the bottom valve 29, and the other end is located at the connection point between the through hole 21 and the cleaning tank 22; the device further comprises a cleaning mechanism 30, wherein the cleaning mechanism The cylinder 30 includes a cylinder 31, which is fixed to the top of the inner cavity of the cleaning box 40. The output end of the cylinder 31 is fixed with a motor 33 through a mounting plate 32. The mounting plate 32 and the motor 33 extend into the through hole 21. The mounting plate 32 fits the inner wall of the through hole 21. The output end of the motor 33 is fixed with a cleaning shaft 35, which extends into the filter element body 10. The outer periphery of the cleaning shaft 35 is covered with a sealing plate 34. The sealing plate 34 covers the filter element body 10, so that the cleaning tank 22 forms a sealed cavity. The cleaning shaft 35 is provided with a spray nozzle. The liquid cavity 351 and the cleaning shaft 35 are evenly fixed with nozzles 354 on the periphery thereof, and the nozzles 354 are connected with the liquid cavity 351, wherein there is a certain degree of inclination angle between the nozzles 354 and the outer surface of the cleaning shaft 35, so that after the cleaning shaft 35 rotates, the acid liquid or cleaning liquid sprayed by the nozzles 354 will have a certain degree of inclination angle with the inner wall of the filter element body 10, so that when the sprayed acid liquid or cleaning liquid contacts the hard and fine particles that are blocked, it is equivalent to shoveling up the hard and fine particles, thereby achieving In order to clean up the hard and fine particles that are blocked, an acid pipe 36 and a cleaning pipe 37 are fixed to the sealing plate 34, respectively. The acid pipe 36 is connected to an external acid supply device to provide acid to the liquid spraying chamber 351, and the cleaning pipe 37 is connected to an external cleaning liquid supply device to provide cleaning liquid to the liquid spraying chamber 351. A guide cavity 341 is provided in the sealing plate 34, and connecting holes 352 are evenly provided on the outer periphery of the cleaning shaft 35 corresponding to the sealing plate 34, and the guide cavity 341 is connected to the connecting hole 352;

[0042] When cleaning, first put the filter element body 10 vertically into the cleaning tank 22, then start the cylinder 31 to extend, so that the motor 33 drives the cleaning shaft 35 to move downward until the sealing plate 34 covers the filter element body 10, and then start the motor 33 to rotate the cleaning shaft 35. At the same time, acid is supplied to the spray chamber 351 through the acid pipe 36, and the acid is sprayed from the nozzle 354 to remove the particles blocked in the filter element body 10 and shovel off the hard and fine particles. After the cleaning tank 22 is filled with acid, the supply of acid to the spray chamber 351 is stopped. When the bottom valve 29 is opened, the acid liquid will be discharged from the bottom valve 29. During the discharge process, the acid liquid located at the partition cavity 221 will enter the filter element body 10 from the outside of the filter element body 10. At this time, the particles blocked on the inner side of the filter element body 10 will be washed down and taken down with the acid liquid, and finally discharged from the bottom valve 29; after pickling, the cleaning liquid is provided to the liquid spraying cavity 351 through the cleaning pipe 37, and the cleaning liquid is sprayed from the nozzle 354 to clean the inner wall of the filter element body 10 and clean up the blocking residue at the same time. The cleaned blocking residue is discharged from the bottom valve 29 along with the cleaning liquid.

[0043] In this way, the hard and fine particles that clog the inner wall of the filter element body 10 can be cleaned off instead of making the hard and fine particles closer to the clogging point, thereby improving the cleaning effect.

[0044] Furthermore, two limit plates 353 are symmetrically fixed on the periphery of the cleaning shaft 35, and the two limit plates 353 are stuck outside the sealing plate 34, thereby improving the sealing between the cleaning shaft 35 and the sealing plate 34, and effectively preventing acid or cleaning liquid from entering the through hole 21 and damaging the motor 33; in addition, fixing rods 38 are evenly fixed between the motor 33 and the sealing plate 34, and cooperate with the two limit plates 353 to fix the position of the sealing plate 34, thereby improving the stability of the sealing plate 34 when sealing.

[0045] Furthermore, a positioning seat 211 is annularly fixed in the through hole 21, and positioning holes 212 are evenly opened on the positioning seat 211. The sealing plate 34 is against the positioning seat 211, and positioning columns 342 are evenly fixed on the sealing plate 34. The positioning columns 342 are inserted into the positioning holes 212. This improves the sealing performance of the sealing plate 34 to the cleaning tank 22, and effectively prevents the acid or cleaning liquid from leaking into the through hole 21; in addition, sealing gaskets are provided between the sealing plate 34 and the end of the filter element body 10 and between the bottom of the cleaning tank 22 and the end of the filter element body 10, which further improves the sealing performance of the two ends of the cleaning tank 22. During pickling, the acid is not easy to leak, thereby ensuring the effective utilization rate of the acid.

[0046] like Figure 2 As shown;

[0047] A liquid inlet chamber 23 and a storage chamber 24 are provided in the cleaning cylinder 20 in an annular manner from top to bottom. The liquid inlet chamber 23 is located outside the cleaning tank 22, and the storage chamber 24 is located outside the through hole 21. The cleaning tank 22 is connected to the liquid inlet chamber 23, and a guide valve 25 is fixed at the connection point. The guide valve 25 is located at the bottom of the cleaning tank 22. A liquid pump 26 is fixed in the liquid inlet chamber 23. The storage chamber 24 is connected to the liquid inlet chamber 23, and a liquid inlet valve 27 is fixed at the connection point. The storage chamber 24 is connected to the cleaning tank 22, and a liquid discharge valve 28 is fixed at the connection point.

[0048] During pickling, when the cleaning tank 22 is full of acid, open the guide valve 25 and the liquid inlet valve 27, start the liquid pump 26 at the same time, close the drain valve 28, and allow the acid to enter the storage chamber 24 until the cleaning tank 22 and the storage chamber 24 are full of acid. Then stop supplying the acid, first drain the acid in the cleaning tank 22 from the bottom valve 29, then close the bottom valve 29, open the drain valve 28, allow the acid to enter the cleaning tank 22, and then open the bottom valve 29. In this way, the filter element body 10 can be pickled twice to improve the cleaning effect.

[0049] like Figure 5 and Figure 6 As shown;

[0050] The cleaning mechanism 30 is installed in the cleaning box 40, and a support plate 41 is fixed in the cleaning box 40. A slide plate 50 is slidably placed on the support plate 41, and the cleaning cylinder 20 is fixed on the slide plate 50. In this way, the filter element body 10 to be cleaned can be placed in the cleaning cylinder 20 after the slide plate 50 is slid outward. The bottom valve 29 passes through the slide plate 50, and a collecting chamber 42 is formed between the slide plate 50 and the bottom of the inner cavity of the cleaning box 40. The acid or cleaning liquid discharged from the bottom valve 29 enters the collecting chamber 42 for collection, which is convenient for reuse. The cleaning box 40 has a sealing door 43 on the outer hinge, and the sealing door 43 improves safety.

[0051] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A reverse pickling device for a metal filter element, comprising a cleaning box (40), characterized in that: A cleaning cylinder (20), wherein a cylindrical through hole (21) and a cleaning groove (22) are sequentially opened in the cleaning cylinder (20) from top to bottom, the through hole (21) and the cleaning groove (22) are connected, the filter element body (10) is placed in the cleaning groove (22), and a bottom valve (29) is fixed at the bottom of the cleaning cylinder (20); The cleaning mechanism (30) comprises a cylinder (31), a motor (33) is fixed to the output end of the cylinder (31) via a mounting plate (32), the mounting plate (32) and the motor (33) extend into the through hole (21), a cleaning shaft (35) is fixed to the output end of the motor (33), the cleaning shaft (35) extends into the filter element body (10), a sealing plate (34) is slidably sleeved on the outer periphery of the cleaning shaft (35), the sealing plate (34) covers the filter element body (10), and the cleaning shaft (35) is provided with a sealing plate (34) on the outer periphery of the cleaning shaft (35). A liquid spraying chamber (351) is provided in the washing shaft (35), nozzles (354) are uniformly fixed on the periphery of the washing shaft (35), and the nozzles (354) are connected to the liquid spraying chamber (351). An acid liquid pipe (36) and a washing pipe (37) are respectively fixed on the sealing plate (34), and a flow guiding chamber (341) is provided in the sealing plate (34). Communication holes (352) are uniformly provided on the periphery of the washing shaft (35) corresponding to the sealing plate (34), and the flow guiding chamber (341) is connected to the communication hole (352); There is a certain degree of inclination angle between the spray head (354) and the outer surface of the cleaning shaft (35).

2. A reverse pickling device for a metal filter element according to claim 1, characterized in that: Two limiting plates (353) are symmetrically fixed to the periphery of the cleaning shaft (35), and the two limiting plates (353) are clamped outside the sealing plate (34).

3. A reverse pickling device for a metal filter element according to claim 2, characterized in that: A positioning seat (211) is fixed in an annular shape inside the through hole (21), positioning holes (212) are evenly formed on the positioning seat (211), the sealing plate (34) abuts against the positioning seat (211), positioning columns (342) are evenly fixed on the sealing plate (34), and the positioning columns (342) are inserted into the positioning holes (212).

4. A reverse pickling device for a metal filter element according to claim 3, characterized in that: Sealing gaskets are provided between the sealing plate (34) and the end of the filter element body (10) and between the bottom of the cleaning tank (22) and the end of the filter element body (10).

5. A reverse pickling device for a metal filter element according to claim 4, characterized in that: The cleaning cylinder (20) is provided with a liquid inlet chamber (23) and a storage chamber (24) in an annular shape from top to bottom. The liquid inlet chamber (23) is located outside the cleaning tank (22), and the storage chamber (24) is located outside the through hole (21). The cleaning tank (22) and the liquid inlet chamber (23) are connected, and a guide valve (25) is fixed at the connection point. The guide valve (25) is located at the bottom of the cleaning tank (22). A liquid pump (26) is fixed in the liquid inlet chamber (23). The storage chamber (24) and the liquid inlet chamber (23) are connected, and a liquid inlet valve (27) is fixed at the connection point. The storage chamber (24) and the cleaning tank (22) are connected, and a liquid discharge valve (28) is fixed at the connection point.

6. A reverse pickling device for a metal filter element according to claim 5, characterized in that: The cleaning mechanism (30) is installed in a cleaning box (40), the cylinder (31) is fixed on the top of the inner cavity of the cleaning box (40), a support plate (41) is fixed in the cleaning box (40), a slide plate (50) slides on the support plate (41), the cleaning cylinder (20) is fixed on the slide plate (50), the bottom valve (29) passes through the slide plate (50), a collecting chamber (42) is formed between the slide plate (50) and the bottom of the inner cavity of the cleaning box (40), and a sealing door (43) is hinged outside the cleaning box (40).

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