Multi-stage filtering device for aromatic solvent production

Abstract

The utility model discloses a multistage filtering device for aromatic solvent production, and relates to the technical field of aromatic solvent production equipment, the multistage filtering device for aromatic solvent production comprises a treatment box, the bottom of the treatment box is fixedly connected with a liquid discharge pipe, the inner wall of the liquid discharge pipe is fixedly connected with a first filter screen frame, and the inner wall of the first filter screen frame is fixedly connected with a second filter screen frame. Two fan-shaped first filter screens are fixedly connected to the inner wall of the first filter screen frame, two second filter screen frames with the same fan-shaped sections are slidably connected to the inner wall of the first filter screen frame, second filter screens are fixedly connected to the bottoms of the second filter screen frames, rotating shafts are rotatably connected to the inner walls of the first filter screen frames, and filter cotton is arranged below the two second filter screens. When the multi-stage filtering device for aromatic solvent production is used, a worker only needs to push the threaded rod, the filtering equipment in the liquid discharging pipe can be disassembled, meanwhile, after disassembly is completed, filtering cotton is completely exposed to the outside, the worker can conveniently replace or clean the filtering cotton, and the convenience of the device in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aromatic hydrocarbon solvent production equipment, in particular to a multi-stage filtering device for aromatic hydrocarbon solvent production. Background Art

[0002] Aromatic solvents are clear, colorless liquids. They are toxic aromatic hydrocarbons and ignition sources should be eliminated near storage points. Aromatic solvents will produce waste residue and debris during the production process, which will have a great impact on solvent performance, so they need to be filtered during the production process.

[0003] Patent No.: CN219355904U, discloses a multi-stage filtering device for the production of high-boiling point aromatic solvents. Through filtering with filter nets and filter cotton, it can achieve rich filtering methods and excellent filtering effects; the cleaning liquid is pumped out into the high-pressure nozzle by a liquid pump, and then the motor is driven to drive the transmission rod and the blade to move, the internal cleaning liquid is stirred, the inner wall of the device box is cleaned, and then filtered through the discharge pipe, which can achieve the effect of self-cleaning of the device and extending the service life of the device.

[0004] However, during the implementation of this solution, since the filter cotton is completely located inside the drain pipe, after the drain pipe is removed, the filter cotton and the filter screen are completely located in the drain pipe, large particles of impurities on the filter screen will fall off after hitting the drain pipe, while the impurities in the filter cotton are absorbed by the holes in the filter cotton, and then after hitting the drain pipe, the impurities in the filter cotton are still difficult to clean, and since the filter cotton is completely located in the drain pipe, it is inconvenient for the staff to take out the filter cotton for replacement, and thus a multi-stage filtration device for the production of aromatic solvents is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a multi-stage filtering device for producing aromatic solvents, which can solve the problems of the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-stage filtering device for producing aromatic solvents, comprising a treatment box, a liquid inlet pipe connected to the inside of the treatment box is fixedly connected to the surface of the treatment box, a liquid storage box is fixedly connected to one side of the treatment box, a connecting pipe is fixedly connected to the surface of the liquid storage box, an end of the connecting pipe away from the liquid storage box is fixedly connected to the treatment box, a drain pipe is fixedly connected to the bottom of the treatment box, a first filter screen frame is fixedly connected to the inner wall of the drain pipe, two fan-shaped first filters are fixedly connected to the inner wall of the first filter screen frame, and two fan-shaped first filters are slidably connected to the inner wall of the first filter screen frame. A second filter screen frame with a similar fan-shaped cross-section, a second filter screen is fixedly connected to the bottom of the second filter screen frame, an inner wall of the first filter screen frame is rotatably connected to a rotating shaft, filter cotton is arranged below the two second filter screens, the two second filter screen frames and the opposite sides of the two second filter screens are fixedly connected to a fixing rod, a connecting sleeve is fixedly connected to the surface of the fixing rod, the surface of the connecting sleeve is slidably connected to the lower end of the rotating shaft, the inside of the connecting sleeve is slidably connected to two blocks protruding from the surface of the connecting sleeve, the surface of the block located on the outside of the connecting sleeve is an inclined surface, an annular groove is provided inside the rotating shaft, and the surface of the block and the inner wall of the annular groove slide on each other.

[0007] Preferably, a motor is fixedly connected to the surface of the drain pipe, and the output end of the motor passes through the surface of the drain pipe and is rotatably connected to the inside of the drain pipe. A bevel gear is fixedly connected to the surface of the rotating shaft, and the output end of the motor is also fixedly connected to the bevel gear. The two bevel gears are meshed with each other, and two push plates are fixedly connected to the surface of the rotating shaft, and the surfaces of the two push plates are in contact with the surface of the first filter screen.

[0008] Preferably, a conical shielding cover is fixedly connected to the upper end of the rotating shaft, and the shielding cover is located above the two bevel gears.

[0009] Preferably, a cross bracket is provided at the bottom of the filter cotton.

[0010] Preferably, a spring is fixedly connected to the surface of the clamping block, and one end of the spring away from the clamping block is fixedly connected to the inner wall of the connecting sleeve.

[0011] Preferably, the connecting sleeve is internally slidably connected to a movable column, the surface of the movable column is fixedly connected to an extrusion rod, the surface of the block is provided with a movable groove with a right-angled trapezoidal cross-section, and the surface of the extrusion rod and the inner wall of the movable groove slide against each other.

[0012] Preferably, the internal thread of the movable column is connected with a threaded rod, and the threaded rod penetrates the surface of the connecting sleeve and the fixed rod and is slidably connected with the inside of the connecting sleeve and the fixed rod.

[0013] Preferably, a tray is fixedly connected to the surface of the threaded rod, and the tray is located below the cross bracket.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) When the multi-stage filtration device for producing aromatic solvents is used, the staff only needs to push the threaded rod to complete the disassembly of the filtration device in the discharge pipe. The operation is simple. After the disassembly, the filter cotton is completely exposed to the outside, which makes it convenient for the staff to replace or clean the filter cotton, thereby improving the convenience of the device when in use and the practicality of the device. It is worthy of promotion.

[0016] (2) The multi-stage filtering device for producing aromatic solvents can use the rotation of the rotating shaft to push the large particles of impurities retained on the surface of the first filter screen through the setting of the push plate, so that the large particles of impurities enter the second filter screen frame and the second filter screen, so that the surface of the first filter screen is always in a relatively clean state, so that the device always has the ability to filter large particles of impurities, avoids clogging of the filtering device by large particles of impurities, reduces the filtering of aromatic solvents, and thus improves the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the liquid discharge pipe of the utility model;

[0020] Figure 3 This is a schematic diagram of the surface structure of the second filter frame of the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the rotating shaft of the utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the connecting sleeve of the utility model;

[0023] Figure 6 For this utility model Figure 5 Enlarged schematic diagram at point A in the middle.

[0024] Figure numerals: 1. processing box; 2. liquid storage box; 3. connecting pipe; 4. liquid inlet pipe; 5. liquid discharge pipe; 6. motor; 7. rotating shaft; 8. first filter frame; 9. first filter; 10. second filter frame; 11. second filter; 12. push plate; 13. bevel gear; 14. shielding cover; 15. filter cotton; 16. cross bracket; 17. threaded rod; 18. fixed rod; 19. connecting sleeve; 20. block; 21. ring groove; 22. movable column; 23. tray; 24. spring; 25. movable groove; 26. extrusion rod. DETAILED DESCRIPTION

[0025] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0026] See also Figure 1-6 The utility model provides a technical solution: a multi-stage filtering device for the production of aromatic solvents, comprising a treatment box 1, a liquid inlet pipe 4 connected to the inside of the treatment box 1 is fixedly connected to the surface of the treatment box 1, a liquid storage box 2 is fixedly connected to one side of the treatment box 1, a connecting pipe 3 is fixedly connected to the surface of the liquid storage box 2, and one end of the connecting pipe 3 away from the liquid storage box 2 is fixedly connected to the treatment box 1, serving as a flow channel for the detergent in the liquid storage box 2, so that the detergent can smoothly enter the treatment box 1 from the liquid storage box 2 to clean the inner wall of the treatment box 1.

[0027] A drain pipe 5 is fixedly connected to the bottom of the processing box 1, and a first filter frame 8 is fixedly connected to the inner wall of the drain pipe 5. Two first fan-shaped filters 9 are fixedly connected to the inner wall of the first filter frame 8. Two second filter frames 10 with the same fan-shaped cross-sections are slidably connected to the inner wall of the first filter frame 8. A second filter 11 is fixedly connected to the bottom of the second filter frame 10, and then through the arrangement of the second filter 11 and the first filter 9, the discharged aromatic solvent can be fully filtered. A motor 6 is fixedly connected to the surface of the drain pipe 5, and the output end of the motor 6 passes through the surface of the drain pipe 5 and is rotatably connected to the inside of the drain pipe 5. The inner wall of the first filter frame 8 is rotatably connected to a rotating shaft 7, and a bevel gear 13 is fixedly connected to the surface of the rotating shaft 7. The output end of the motor 6 is also fixedly connected to the bevel gear 13, and the two bevel gears 13 are meshed with each other.

[0028] Furthermore, two push plates 12 are fixedly connected to the surface of the rotating shaft 7, and the surfaces of the two push plates 12 are in contact with the surface of the first filter screen 9. Through the setting of the push plates 12, the rotation of the rotating shaft 7 can be used to push the large particle impurities retained on the surface of the first filter screen 9, so that the large particle impurities enter the second filter screen frame 10 and the second filter screen 11, so that the surface of the first filter screen 9 is always in a relatively clean state, so that the device always has the ability to filter large particle impurities, avoids clogging of the filtering device by large particle impurities, reduces the filtration of aromatic solvents, and thus improves the use effect of the device, which is worthy of promotion.

[0029] A conical shielding cover 14 is fixedly connected to the upper end of the rotating shaft 7, and the shielding cover 14 is located above the two bevel gears 13. Through the setting of the shielding cover 14, the two bevel gears 13 can be covered, thereby preventing the aromatic hydrocarbon solvent from falling directly on the two bevel gears 13, causing impurities to be retained on the surface of the bevel gears 13, affecting the mutual meshing of the two bevel gears 13, and improving the stability of the device during use.

[0030] Furthermore, filter cotton 15 is arranged under each of the two second filter screens 11, and the setting of the filter cotton 15 can adsorb small particle impurities in the aromatic solvent, thereby realizing multi-stage filtration of the aromatic solvent, and further improving the purity of the aromatic solvent. A cross bracket 16 is arranged at the bottom of the filter cotton 15 to lift and support the filter cotton 15, thereby avoiding the filter cotton 15 being washed away when the aromatic solvent is discharged and the filter cotton 15 being skewed, so that the filter cotton 15 can stably filter the aromatic solvent.

[0031] A fixing rod 18 is fixedly connected to the opposite sides of the two second filter frames 10 and the two second filters 11, and a connecting sleeve 19 is fixedly connected to the surface of the fixing rod 18. The surface of the connecting sleeve 19 is slidably connected to the lower end of the rotating shaft 7, and the inside of the connecting sleeve 19 is slidably connected to two blocks 20 protruding from the surface of the connecting sleeve 19. The surface of the block 20 located outside the connecting sleeve 19 is an inclined surface, and a spring 24 is fixedly connected to the surface of the block 20, and the end of the spring 24 away from the block 20 is fixedly connected to the inner wall of the connecting sleeve 19 for resetting the block 20.

[0032] Furthermore, the interior of the connecting sleeve 19 is slidably connected to a movable column 22, the surface of the movable column 22 is fixedly connected to an extrusion rod 26, the surface of the block 20 is provided with a movable groove 25 with a right-angled trapezoidal cross-section, the surface of the extrusion rod 26 and the inner wall of the movable groove 25 slide with each other, the internal thread of the movable column 22 is connected to a threaded rod 17, the threaded rod 17 passes through the surfaces of the connecting sleeve 19 and the fixed rod 18 and is slidably connected to the interior of the connecting sleeve 19 and the fixed rod 18, so as to extend the length of the movable column 22, thereby facilitating the staff to operate the movable column 22.

[0033] A tray 23 is fixedly connected to the surface of the threaded rod 17 . The tray 23 is located below the cross bracket 16 to limit the position of the cross bracket 16 .

[0034] An annular groove 21 is provided inside the rotating shaft 7, and the surface of the block 20 and the inner wall of the annular groove 21 slide against each other. The annular groove 21 cooperates with the second filter frame 10, so that the connecting sleeve 19 can be connected to the rotating shaft 7, thereby realizing the connection between the second filter frame 10 and the first filter frame 8.

[0035] Specifically, when filtering the aromatic solvent, the motor 6 is started, and the rotating shaft 7 is driven to rotate through the two bevel gears 13, thereby driving the push plate 12 to make a circular motion on the surface of the first filter screen 9, pushing the impurities on the surface of the first filter screen 9, and pushing the impurities into the second filter screen 11, so as to achieve the aggregation of large particles of impurities, so that the first filter screen 9 is always kept in a clean state, and the device always has the ability to filter large particles of impurities. After the filtered aromatic solvent is filtered by the first filter screen 9 and the second filter screen 11, it contacts with the filter cotton 15, and then the filter cotton 15 filters the aromatic solvent again, adsorbs the small particles of impurities in the aromatic solvent, and improves the purity of the aromatic solvent.

[0036] After the device is used, when it is necessary to clean the impurities in the filter cotton 15 and the second filter screen 11, push the threaded rod 17, and then drive the movable column 22 to slide in the connecting sleeve 19, so that the extrusion rod 26 squeezes the inclined surface of the movable groove 25, and then drives the block 20 to slide in the connecting sleeve 19, and stretches the spring 24, so that the block 20 retracts into the connecting sleeve 19 and no longer contacts the annular groove 21, and then the connecting sleeve 19 can be directly separated from the rotating shaft 7 under the action of gravity or vertical pulling, so that the second filter screen 11 and the filter cotton 15 can be taken out of the drain pipe 5, and then the large particles of impurities collected by the second filter screen 11 can be cleaned, and the filter cotton 15 can be cleaned or replaced.

[0037] When the filter cotton 15 and the second filter screen 11 need to be installed into the drain pipe 5, the staff first places the filter cotton 15 on the bottom of the second filter screen 11, then places the cross bracket 16 under the filter cotton 15, and then passes the threaded rod 17 through the cross bracket 16, the filter cotton 15 and the fixed rod 18, and inserts it into the connecting sleeve 19, so that the threaded rod 17 is threadedly connected with the movable column 22, and then as the threaded rod 17 rotates, the tray 23 gradually fits with the cross bracket 16, and then the cross bracket 16 and the filter cotton 15 are clamped between the second filter screen 11 and the tray 23, completing the filter. After the filter cotton 15 is installed, the connecting sleeve 19 is then inserted into the lower end of the rotating shaft 7, so that the second filter frame 10 is inserted between the two first filter screens 9, and then the block 20 is again inserted into the annular groove 21, thereby completing the installation of the device. When the device is used, the staff only needs to push the threaded rod 17 to complete the disassembly of the filter device in the drain pipe 5. The operation is simple. At the same time, after the disassembly is completed, the filter cotton 15 is completely exposed to the outside world, which makes it convenient for the staff to replace or clean the filter cotton 15, thereby improving the convenience of the device when used, and improving the practicality of the device, which is worthy of promotion.

[0038] Working principle: When it is necessary to clean the impurities in the filter cotton 15 and the second filter screen 11, push the threaded rod 17, and then drive the movable column 22 to slide in the connecting sleeve 19, so that the extrusion rod 26 squeezes the inclined surface of the movable groove 25, and then drives the block 20 to slide in the connecting sleeve 19, and stretches the spring 24, so that the block 20 retracts into the connecting sleeve 19 and no longer contacts the annular groove 21, and then at this time, under the action of gravity or vertical pulling, the connecting sleeve 19 can be directly separated from the rotating shaft 7, so that the second filter screen 11 and the filter cotton 15 can be taken out of the drain pipe 5.

[0039] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A multi-stage filtration device for producing aromatic solvents, comprising a treatment box (1), characterized in that: The surface of the treatment box (1) is fixedly connected to a liquid inlet pipe (4) which is in communication with the interior of the treatment box (1); one side of the treatment box (1) is fixedly connected to a liquid storage box (2); the surface of the liquid storage box (2) is fixedly connected to a connecting pipe (3); one end of the connecting pipe (3) which is away from the liquid storage box (2) is fixedly connected to the treatment box (1); the bottom of the treatment box (1) is fixedly connected to a liquid discharge pipe (5); the inner wall of the liquid discharge pipe (5) is fixedly connected to a first filter screen frame (8); the inner wall of the first filter screen frame (8) is fixedly connected to two first fan-shaped filter screens (9); the inner wall of the first filter screen frame (8) is slidably connected to two second filter screen frames (10) which are also fan-shaped in cross section; the bottom of the second filter screen frame (10) is fixedly connected to a second filter screen ( 11), the inner wall of the first filter screen frame (8) is rotatably connected to a rotating shaft (7), filter cotton (15) is arranged below the two second filter screens (11), the two second filter screen frames (10) and the opposite sides of the two second filter screens (11) are fixedly connected to a fixing rod (18), the surface of the fixing rod (18) is fixedly connected to a connecting sleeve (19), the surface of the connecting sleeve (19) is slidably connected to the lower end of the rotating shaft (7), the interior of the connecting sleeve (19) is slidably connected to two clamping blocks (20) protruding from the surface of the connecting sleeve (19), the surface of the clamping block (20) located outside the connecting sleeve (19) is an inclined surface, the interior of the rotating shaft (7) is provided with an annular groove (21), the surface of the clamping block (20) and the inner wall of the annular groove (21) slide relative to each other.

2. The multi-stage filtration device for producing aromatic solvents according to claim 1, characterized in that: The surface of the liquid discharge pipe (5) is fixedly connected to a motor (6), the output end of the motor (6) penetrates the surface of the liquid discharge pipe (5) and is rotatably connected to the inside of the liquid discharge pipe (5), the surface of the rotating shaft (7) is fixedly connected to a bevel gear (13), the output end of the motor (6) is also fixedly connected to a bevel gear (13), the two bevel gears (13) are meshed with each other, the surface of the rotating shaft (7) is fixedly connected to two push plates (12), the surfaces of the two push plates (12) are in contact with the surface of the first filter screen (9).

3. The multi-stage filtration device for producing aromatic solvents according to claim 2, characterized in that: A conical shielding cover (14) is fixedly connected to the upper end of the rotating shaft (7), and the shielding cover (14) is located above the two bevel gears (13).

4. The multi-stage filtration device for producing aromatic solvents according to claim 1, characterized in that: A cross bracket (16) is arranged at the bottom of the filter cotton (15).

5. The multi-stage filtration device for producing aromatic solvents according to claim 1, characterized in that: A spring (24) is fixedly connected to the surface of the clamping block (20), and one end of the spring (24) away from the clamping block (20) is fixedly connected to the inner wall of the connecting sleeve (19).

6. The multi-stage filtration device for producing aromatic solvents according to claim 4, characterized in that: The connecting sleeve (19) is slidably connected to a moving column (22) inside, a squeezing rod (26) is fixedly connected to the surface of the moving column (22), a movable groove (25) with a right-angle trapezoidal cross section is provided on the surface of the clamping block (20), and the surface of the squeezing rod (26) and the inner wall of the movable groove (25) slide against each other.

7. The multi-stage filtration device for producing aromatic solvents according to claim 6, characterized in that: The movable column (22) is internally threadedly connected with a threaded rod (17), and the threaded rod (17) penetrates the surfaces of the connecting sleeve (19) and the fixed rod (18) and is slidably connected to the inside of the connecting sleeve (19) and the fixed rod (18).

8. The multi-stage filtration device for producing aromatic solvents according to claim 7, characterized in that: A tray (23) is fixedly connected to the surface of the threaded rod (17), and the tray (23) is located below the cross bracket (16).

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