Precise filtering equipment for propylene glycol methyl ether acetate

Abstract

The utility model relates to the technical field of chemical engineering, and discloses propylene glycol methyl ether acetate precision filtering equipment which comprises a base, a filtering box is fixedly connected to the base, a sliding groove is formed in one side of the filtering box, a connecting pull rod is connected in the sliding groove in a sliding mode, a locking spring is arranged on the connecting pull rod, and the locking spring is connected with the filtering box. The bottom of the connecting pull rod is fixedly connected with an inserting rod, the filter box is slidably connected with a connecting block, the connecting block is slidably connected with the inserting rod, and one end of the connecting block is fixedly connected with a mounting seat. During use, an operator pulls the connecting pull rod to unlock the connecting block by the inserting rod, then the mounting seat can be pulled out for maintenance, the mounting seat can be quickly fixed and unlocked through the arrangement of the locking spring and the inserting rod, and meanwhile, the clamping spring is matched with the locking rod, so that the mounting seat can be quickly fixed and unlocked. Therefore, the coarse filter screen plate can be mounted and dismounted, the operation is simple, the maintenance and cleaning time is shortened, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical engineering, in particular to a precision filtration device for propylene glycol methyl ether acetate. Background Art

[0002] Propylene glycol methyl ether acetate, as a high-performance organic solvent, has excellent solubility, low toxicity and good evaporation rate, and is widely used in fields such as coatings, inks, cleaning agents, adhesives and the manufacture of electronic components. During its production and transportation, propylene glycol methyl ether acetate often contains trace impurities, particulate matters or moisture, which affect the purity and performance of the product.

[0003] However, the current filtration device for propylene glycol methyl ether acetate can remove impurities to a certain extent, but the design of its filtration components is often relatively complex, the disassembly and assembly process is cumbersome and time-consuming, increasing the operation difficulty, resulting in low efficiency in daily maintenance, cleaning and filter element replacement, and further increasing the work burden and production cost of the staff. Therefore, a precision filtration device for propylene glycol methyl ether acetate is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and to propose a precision filtration device for propylene glycol methyl ether acetate.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a precision filtration device for propylene glycol methyl ether acetate, including a base, a filtration box is fixedly connected to the base, a feed inlet is fixedly connected to the top of the filtration box, a discharge port is fixedly connected to the bottom of the filtration box, a chute is opened on one side of the filtration box, a connecting pull rod is slidably connected in the chute, a locking spring is arranged on the connecting pull rod, one end of the locking spring is fixedly connected to the filtration box, a plug rod is fixedly connected to the bottom of the connecting pull rod, the plug rod slides on the filtration box, a connecting block is slidably connected to the filtration box, the connecting block is slidably connected to the plug rod, one end of the connecting block is fixedly connected to a mounting seat, and sliding rods are fixedly connected to both sides of the inner wall of the filtration box, and the mounting seat slides on the sliding rods.

[0006] As a further description of the above technical solution:

[0007] A clamping block is fixedly connected to the mounting seat, a clamping groove is opened on the clamping block, a locking rod is slidably connected in the clamping groove, a clamping spring is connected to the locking rod, one end of the clamping spring is fixedly connected to the clamping block, a coarse filter screen plate is arranged on the mounting seat, through grooves are opened on the coarse filter screen plate, and the locking rod is slidably connected to the through grooves.

[0008] As a further description of the above technical solution:

[0009] A fine filter plate is slidably connected to the mounting seat. The fine filter plate is located below the coarse filter plate. Filter holes are provided on both the fine filter plate and the coarse filter plate. The diameter of the filter holes on the fine filter plate is smaller than the diameter of the filter holes on the coarse filter plate. A sealing sleeve is fixedly connected to one end of the mounting seat close to the connecting block.

[0010] As a further description of the above technical solution:

[0011] The other end of the connecting block is fixedly connected to a connecting plate, and a handle is fixedly connected to the connecting plate.

[0012] As a further description of the above technical solution:

[0013] There are two sets of the sliding grooves, which are symmetrically distributed on the filter box. There are two sets of the locking springs and the inserting rods. The two sets of inserting rods are fixedly connected to the connecting pull rod.

[0014] As a further description of the above technical solution:

[0015] There are two sets of the clamping blocks, which are symmetrically distributed on the mounting seat. There are four sets of the locking rods and the clamping springs, which are evenly distributed on the clamping blocks.

[0016] As a further description of the above technical solution:

[0017] The locking rod is in an "L" shape, and the connecting plate is located below the connecting pull rod.

[0018] The present utility model has the following beneficial effects:

[0019] 1. In the present utility model, when using the precision filtration device for propylene glycol methyl ether acetate, the operator pulls the connecting pull rod to release the locking of the inserting rod on the connecting block, and then the mounting seat can be pulled out for maintenance. Through the setting of the locking spring and the inserting rod, the rapid fixing and unlocking of the mounting seat are realized. At the same time, by the cooperation of the clamping spring and the locking rod, the installation and disassembly of the coarse filter plate can be realized. The operation is simple, the maintenance and cleaning time is shortened, and the work efficiency is improved.

[0020] 2. In the present utility model, when using the precision filtration device for propylene glycol methyl ether acetate, first, the large particle impurities and suspended matters in the solution are effectively removed by the coarse filter plate. The aperture of the fine filter plate is finer, which can further remove the tiny impurities and particulate matters, realizing the precision filtration of the propylene glycol methyl ether acetate solution. The purity of the product is improved through the double filtration mechanism, meeting the high-precision production requirements. Description of the Drawings

[0021] Figure 1Schematic diagram of the three-dimensional structure of a precision filtration device for propylene glycol methyl ether acetate proposed by the present utility model;

[0022] Figure 2 Partial structural cross-sectional view of a precision filtration device for propylene glycol methyl ether acetate proposed by the present utility model;

[0023] Figure 3 is Figure 2 Enlarged view of part A in

[0024] Figure 4 Explosion schematic diagram of the partial structure of a precision filtration device for propylene glycol methyl ether acetate proposed by the present utility model.

[0025] Legend:

[0026] 1. Base; 2. Filtration box; 3. Feed inlet; 4. Discharge port; 5. Slide groove; 6. Connecting rod; 7. Locking spring; 8. Plug rod; 9. Connecting block; 10. Mounting seat; 11. Slide rod; 12. Clamping block; 13. Card slot; 14. Lock rod; 15. Clamping spring; 16. Coarse filter screen plate; 17. Through groove; 18. Fine filter screen plate; 19. Sealing sleeve; 20. Connecting plate; 21. Handle. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Refer to Figures 1 - 4, an embodiment provided by the present utility model: a precision filtering device for propylene glycol methyl ether acetate, comprising a base 1, a filtering box 2 fixedly connected to the base 1, a feeding port 3 fixedly connected to the top of the filtering box 2, a discharging port 4 fixedly connected to the bottom of the filtering box 2, a sliding groove 5 opened on one side of the filtering box 2, a connecting pull rod 6 slidably connected in the sliding groove 5, a locking spring 7 provided on the connecting pull rod 6, one end of the locking spring 7 fixedly connected to the filtering box 2, a plug rod 8 fixedly connected to the bottom of the connecting pull rod 6, the plug rod 8 sliding on the filtering box 2, a connecting block 9 slidably connected to the filtering box 2, the connecting block 9 slidably connected to the plug rod 8, one end of the connecting block 9 fixedly connected to a mounting seat 10, sliding rods 11 fixedly connected to both sides of the inner wall of the filtering box 2, the mounting seat 10 sliding on the sliding rods 11. The operator pulls the connecting pull rod 6 to release the locking of the plug rod 8 on the connecting block 9, and then the mounting seat 10 can be pulled out for maintenance. Through the setting of the locking spring 7 and the plug rod 8, the rapid fixing and unlocking of the mounting seat 10 are realized, the operation is simple, and the work efficiency is improved.

[0029] In addition, a clamping block 12 is fixedly connected to the mounting seat 10, a clamping groove 13 is opened on the clamping block 12, a locking rod 14 is slidably connected in the clamping groove 13, a clamping spring 15 is connected to the locking rod 14, one end of the clamping spring 15 fixedly connected to the clamping block 12, a coarse filter screen plate 16 is provided on the mounting seat 10, a through groove 17 is opened on the coarse filter screen plate 16, the locking rod 14 is slidably connected to the through groove 17, a fine filter screen plate 18 is slidably connected to the mounting seat 10, the fine filter screen plate 18 is located below the coarse filter screen plate 16, filtering holes are opened on both the fine filter screen plate 18 and the coarse filter screen plate 16, and the diameter of the filtering holes on the fine filter screen plate 18 is smaller than that of the filtering holes on the coarse filter screen plate 16. A sealing sleeve 19 is fixedly connected to one end of the mounting seat 10 close to the connecting block 9, a connecting plate 20 is fixedly connected to the other end of the connecting block 9, a handle 21 is fixedly connected to the connecting plate 20, there are two groups of sliding grooves 5 and they are symmetrically distributed on the filtering box 2, there are two groups of locking springs 7 and plug rods 8, both groups of plug rods 8 are fixedly connected to the connecting pull rod 6, there are two groups of clamping blocks 12 and they are symmetrically distributed on the mounting seat 10, there are four groups of locking rods 14 and clamping springs 15 and they are evenly distributed on the clamping blocks 12, the shape of the locking rod 14 is "L", the connecting plate 20 is located below the connecting pull rod 6. First, the large particle impurities and suspended matters in the solution are effectively removed by the coarse filter screen plate 16. The aperture of the fine filter screen plate 18 is finer, which can further remove the tiny impurities and particulate matters, realizing the precision filtration of the propylene glycol methyl ether acetate solution, improving the purity of the product through the double filtration mechanism, meeting the high-precision production requirements, and realizing the installation and disassembly of the coarse filter screen plate 16 by the cooperation of the clamping spring 15 and the locking rod 14, shortening the maintenance and cleaning time.

[0030] Working principle: When using this precision filtration equipment for propylene glycol methyl ether acetate, the operator adds the propylene glycol methyl ether acetate solution to be filtered into the filtration tank 2 through the feed port 3. Under the action of gravity, the solution first passes through the coarse filter screen plate 16, and the coarse filter screen plate 16 filters out large particle impurities and suspended matters in the solution. The preliminarily filtered propylene glycol methyl ether acetate solution then passes through the fine filter screen plate 18. Since the filtration aperture on the fine filter screen plate 18 is smaller than that on the coarse filter screen plate 16, the fine filter screen plate 18 is used to further remove smaller impurities and particulate matters, achieving the effect of precision filtration and improving the purity of the product. When it is necessary to clean or replace the coarse filter screen plate 16 and the fine filter screen plate 18 in the mounting seat 10, the operator pulls up the connecting pull rod 6, drives the insertion rod 8 to move upward through the connecting pull rod 6, so that the insertion rod 8 no longer locks the connecting block 9. At this time, the connecting pull rod 6 squeezes the locking spring 7 upward, and then pulls the handle 21, so as to pull out the mounting seat 10 from the filtration tank 2. The operator pinches the two groups of locking rods 14, and then moves the two groups of locking rods 14 closer to the middle so that they no longer get stuck in the through groove 17, so that the coarse filter screen plate 16 can be taken off the mounting seat 10 for cleaning and replacement. At this time, the locking rod 14 will squeeze the clamping spring 15. After taking out the coarse filter screen plate 16, the fine filter screen plate 18 below the coarse filter screen plate 16 is exposed, so that the fine filter screen plate 18 can be taken off. After cleaning and replacement, the coarse filter screen plate 16 and the fine filter screen plate 18 are reinstalled. Under the elastic force of the clamping spring 15, the locking rod 14 gets stuck in the through groove 17, so as to fix the coarse filter screen plate 16. Then the mounting seat 10 is pushed back into the filtration tank 2, and the connecting pull rod 6 is released. Under the action of the locking spring 7, the insertion rod 8 is inserted into the connecting block 9 again to fix the connecting block 9 on the filtration tank 2, and the sealing sleeve 19 is used to prevent the solution in the filtration tank 2 from leaking out.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A precision filtering device for propylene glycol methyl ether acetate, comprising a base (1), characterized in that: The base (1) is fixedly connected to a filter box (2), the top of the filter box (2) is fixedly connected to a feed port (3), the bottom of the filter box (2) is fixedly connected to a discharge port (4), a slide groove (5) is provided on one side of the filter box (2), a connecting rod (6) is slidably connected in the slide groove (5), a locking spring (7) is provided on the connecting rod (6), one end of the locking spring (7) is fixedly connected to the filter box (2), the bottom of the connecting rod (6) is fixedly connected to a plug rod (8), the plug rod (8) slides on the filter box (2), a connecting block (9) is slidably connected to the filter box (2), the connecting block (9) is slidably connected to the plug rod (8), one end of the connecting block (9) is fixedly connected to a mounting seat (10), sliding rods (11) are fixedly connected to both sides of the inner wall of the filter box (2), and the mounting seat (10) slides on the sliding rods (11).

2. A precision filtering device for propylene glycol methyl ether acetate according to claim 1, characterized in that: A clamping block (12) is fixedly connected to the mounting seat (10), a clamping slot (13) is provided on the clamping block (12), a locking rod (14) is slidably connected in the clamping slot (13), a clamping spring (15) is connected to the locking rod (14), one end of the clamping spring (15) is fixedly connected to the clamping block (12), a coarse filter screen plate (16) is provided on the mounting seat (10), a through slot (17) is provided on the coarse filter screen plate (16), and the locking rod (14) is slidably connected to the through slot (17).

3. A precision filtering device for propylene glycol methyl ether acetate according to claim 2, characterized in that: A fine filter screen plate (18) is slidably connected to the mounting seat (10), the fine filter screen plate (18) is located below the coarse filter screen plate (16), both the fine filter screen plate (18) and the coarse filter screen plate (16) are provided with filter holes, the diameter of the filter holes on the fine filter screen plate (18) is smaller than the diameter of the filter holes on the coarse filter screen plate (16), and a sealing sleeve (19) is fixedly connected to one end of the mounting seat (10) close to the connecting block (9).

4. A precision filtering device for propylene glycol methyl ether acetate according to claim 3, characterized in that: The other end of the connection block (9) is fixedly connected to a connection plate (20), and a handle (21) is fixedly connected to the connection plate (20).

5. A precision filtering device for propylene glycol methyl ether acetate according to claim 4, characterized in that: The slide grooves (5) are provided in two groups and are symmetrically distributed on the filter box (2); the locking springs (7) and the insertion rods (8) are provided in two groups, and the two groups of the insertion rods (8) are fixedly connected to the connecting rod (6).

6. A precision filtering device for propylene glycol methyl ether acetate according to claim 5, characterized in that: The clamping blocks (12) are provided in two groups and are symmetrically distributed on the mounting seat (10); the locking rods (14) and clamping springs (15) are provided in four groups and are evenly distributed on the clamping blocks (12).

7. The precision filtering device for propylene glycol methyl ether acetate according to claim 6, characterized in that: The locking rod (14) is in an "L" shape, and the connecting plate (20) is located below the connecting pull rod (6).

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