Mother liquor filtering device of centrifugal machine for producing o-methyl formate benzenesulfonamide

Abstract

The utility model relates to the technical field of filtering devices, in particular to a centrifugal machine mother liquor filtering device for producing o-methyl formate benzenesulfonamide, which comprises a filtering box, a positioning disc, a filtering cylinder, a feeding pipe and a cleaning mechanism, a fixed table is fixedly arranged on the inner bottom wall of the filtering box, and a second discharging pipe is communicated with the side wall of the filtering box. The positioning disc is rotationally arranged on the fixing table, a first discharging pipe is fixedly arranged on the positioning disc in a communicating mode, the first discharging pipe penetrates through the fixing table and extends out of the filtering box, a discharging control valve is arranged in the first discharging pipe, the filtering cylinder is fixedly arranged on the positioning disc and makes contact with the inner top wall of the filtering box, and the feeding pipe is arranged on the inner top wall of the filtering box in a penetrating mode; the feeding pipe extends into the filter cartridge, the cleaning mechanism is arranged in the filter box and used for cleaning impurities attached to the inner wall of the filter cartridge, and through the technical scheme, the problem that in the related technology, solid particles are prone to being attached to the filter cartridge in the filtering process, and the mother liquor filtering efficiency is affected is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to a centrifuge mother liquor filtering device for producing methyl o-formate benzenesulfonamide. Background Art

[0002] In the production of methyl benzenesulfonamide (MTBFA), centrifuges are primarily used to separate and purify the product. The centrifuge uses high-speed rotation to generate centrifugal force, separating the different components in the mixture and thus purifying the product. During use, the centrifuge requires filtration of the mother liquor. The primary purpose of this filtration is to remove impurities and moisture from the mother liquor, thereby improving its quality and purity. Filtration effectively separates solid particles and liquids from the mother liquor, ensuring a purer composition that meets the requirements of subsequent processes.

[0003] The mother liquor filtration of the centrifuge in the prior art generally involves pouring the mother liquor into the filter cartridge, then controlling the filter cartridge to rotate, and then the liquid and solid particles are separated through the filter cartridge by the centrifugal force of the rotation. The liquid flows out through the filter medium, while the solid particles are retained on the filter medium. This separation process ensures that the outflowing mother liquor has high purity and quality.

[0004] However, during the above-mentioned mother liquor filtration process, solid particles are easily attached to the surface of the filter cartridge under the action of centrifugal force. These solid particles can easily cause the filter cartridge to become clogged, thereby affecting the filter cartridge's filtration efficiency for the mother liquor. Utility Model Content

[0005] The utility model provides a centrifuge mother liquor filtering device for producing methyl o-formate benzenesulfonamide, which solves the problem in the related art that solid particles are easily attached to the filter cartridge during the filtration process, thereby affecting the mother liquor filtration efficiency.

[0006] The technical solution of the utility model is as follows: A centrifuge mother liquor filtration device for the production of methyl benzenesulfonamide, comprising a filter box, a positioning disk, a filter cartridge, a feed pipe and a cleaning mechanism, wherein a fixed platform is fixedly provided on the inner bottom wall of the filter box, a second discharge pipe is connected to the side wall of the filter box, the positioning disk is rotatably provided on the fixed platform, a first discharge pipe is fixed and connected to the positioning disk, the first discharge pipe passes through the fixed platform and extends out of the filter box, the first discharge pipe has a built-in discharge control valve, the filter cartridge is fixedly provided on the positioning disk, the filter cartridge is in contact with the inner top wall of the filter box, the feed pipe is provided through the inner top wall of the filter box, the feed pipe extends into the filter cartridge, and the cleaning mechanism is provided in the filter box for cleaning impurities attached to the inner wall of the filter cartridge.

[0007] Preferably, the cleaning mechanism comprises:

[0008] A support shell, the support shell is fixedly arranged on the filter box, and a support opening is opened on the inner bottom wall of the support shell, and the support opening is communicated with the filter box;

[0009] A support plate, the support plate being slidably disposed in the support shell, a support column being rotatably disposed on the support plate, the support column penetrating the support opening and extending into the filter box;

[0010] A cleaning assembly, the cleaning assembly being arranged on the support column and being used for cleaning the inner wall of the filter cartridge;

[0011] A rotation mechanism, the rotation mechanism being disposed in the support housing and configured to control the support column to rotate;

[0012] A lifting mechanism is provided in the support shell and is used to control the reciprocating movement of the support plate in the height direction.

[0013] Furthermore, the cleaning component includes:

[0014] Cleaning plates, a plurality of cleaning plates are provided on the periphery of the support column, each of the cleaning plates is covered with cleaning bristles, and the cleaning bristles are in contact with the inner wall of the filter cartridge;

[0015] A plurality of fixing rods are fixedly arranged between the cleaning plate and the supporting column.

[0016] Furthermore, the lifting mechanism includes:

[0017] an adjusting shell, the adjusting shell being fixedly arranged on the inner top wall of the supporting shell;

[0018] An adjusting disk is rotatably provided on two opposite side walls of the adjusting housing, and a rotating shaft is rotatably provided at an eccentric position of the adjusting disk;

[0019] an adjusting rod, the adjusting rod being hingedly arranged between the rotating shaft and the supporting plate;

[0020] A synchronous rotation mechanism is provided in the adjustment housing and is used to control the two adjustment disks to rotate synchronously.

[0021] Furthermore, the synchronous rotation mechanism includes:

[0022] An adjusting column, the adjusting column being rotatably disposed in the adjusting housing, and both ends of the adjusting column being fixedly connected to the adjusting disk;

[0023] a first bevel gear, the first bevel gear being fixedly disposed on the adjusting column;

[0024] A power input mechanism is provided on the support shell and is used to control the rotation of the adjustment column.

[0025] On the basis of the above solution, the power input mechanism includes:

[0026] a second bevel gear rotatably disposed on an inner top wall of the adjustment housing;

[0027] A first motor is fixedly disposed on the supporting housing, and an output end of the first motor is fixedly connected to the second bevel gear.

[0028] On the basis of the above solution, the rotation mechanism includes:

[0029] a first annular rack fixedly disposed on the support column;

[0030] a first gear rotatably disposed on the support plate, the first gear being engaged with the first annular rack;

[0031] A driving mechanism is provided in the supporting shell and is used to control the first gear to rotate.

[0032] On the basis of the above solution, the driving mechanism includes:

[0033] a first driving port, the first driving port being provided on the first gear;

[0034] a second driving port, the second driving port being provided on the support plate;

[0035] a driving column, the driving column being rotatably disposed in the supporting shell, the driving column passing through the first driving opening and the second driving opening, and the driving column being slidably connected to a side wall of the first driving opening;

[0036] The second motor is fixedly arranged on the supporting shell, and the output end of the second motor is fixedly connected to the driving column.

[0037] On the basis of the above solution, a sliding groove is provided on the side wall of the driving column, and a slider is fixedly provided on the side wall of the first driving port. The slider extends into the sliding groove and is slidably connected to the side wall of the sliding groove.

[0038] Based on the above solution, a second annular rack is fixedly provided on the side wall of the filter cartridge, and a second gear is rotatably provided on the inner top wall of the filter box. The second gear is engaged with the second annular rack, and the second gear is fixedly connected to the drive column.

[0039] The working principle and beneficial effects of the utility model are as follows:

[0040] 1. In the present invention, through the setting of the lifting mechanism, the operation of the first motor can drive the second bevel gear to rotate. At the same time, the meshing of the second bevel gear and the first bevel gear drives the adjusting column and the adjusting disk to rotate synchronously. During the rotation of the adjusting disk, the support plate and the support column can be pulled by the rotating shaft and the adjusting rod to reciprocate in the height direction, thereby driving the cleaning bristles on the cleaning plate to clean the inner wall of the filter cartridge through the fixed rod;

[0041] 2. In the present invention, through the setting of the rotating mechanism, the operation of the second motor can drive the driving column to rotate, and at the same time, the cooperation between the slider and the slide groove can drive the first gear to rotate. At the same time, the meshing of the first gear and the first annular rack drives the support column to rotate, thereby causing the fixing rod and the cleaning plate to move around the support column. The movement of the cleaning plate can drive the cleaning brush to clean the inner wall of the filter cartridge;

[0042] 3. In the present invention, by configuring the second gear and the second annular rack, the rotation of the drive column can drive the second gear to rotate, and the meshing of the second gear and the second annular rack can drive the filter cartridge to rotate, thereby improving the filtration efficiency under the action of centrifugal force. At the same time, the filter cartridge and the support column can be controlled to rotate in opposite directions, thereby improving the cleaning efficiency.

[0043] 4. In the present invention, through the arrangement of the filter box, positioning plate, filter cartridge, feed pipe and cleaning mechanism, it is convenient to control the operation of the first motor and the second motor to move the cleaning plate around the support column while also moving back and forth in the height direction, thereby driving the cleaning bristles to clean the solid particles attached to the inner wall of the filter cartridge, thereby solving the problem in the related art that the filter cartridge is easily attached with solid particles during the filtration process, thereby affecting the mother liquor filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0045] Figure 1 This is a schematic diagram of the structure of the utility model;

[0046] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0047] Figure 3 This is a schematic diagram of the cross-sectional structure of the adjustment housing of the utility model;

[0048] Figure 4 This is a schematic diagram of the lifting mechanism structure of the utility model.

[0049] In the figure: 1. filter box; 2. second discharge pipe; 3. positioning plate; 4. first discharge pipe; 5. filter cartridge; 6. feed pipe; 7. support shell; 8. support plate; 9. support column; 10. cleaning plate; 11. adjustment shell; 12. adjustment plate; 13. adjustment rod; 14. adjustment column; 15. first bevel gear; 16. second bevel gear; 17. first motor; 18. first annular rack; 19. first gear; 20. drive column; 21. second motor; 22. second annular rack; 23. second gear. DETAILED DESCRIPTION

[0050] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0051] like Figures 1-4 As shown, this embodiment proposes a centrifuge mother liquor filtration device for the production of methyl benzenesulfonamide, including a filter box 1, a positioning disk 3, a filter cartridge 5, a feed pipe 6 and a cleaning mechanism. A fixed platform is fixedly provided on the inner bottom wall of the filter box 1, and a second discharge pipe 2 is connected to the side wall of the filter box 1. The positioning disk 3 is rotatably provided on the fixed platform. A first discharge pipe 4 is fixed and connected to the positioning disk 3. The first discharge pipe 4 passes through the fixed platform and extends out of the filter box 1. The first discharge pipe 4 has a built-in discharge control valve. The filter cartridge 5 is fixedly provided on the positioning disk 3. The filter cartridge 5 contacts the inner top wall of the filter box 1. The feed pipe 6 is provided through the inner top wall of the filter box 1 and extends into the filter cartridge 5. The cleaning mechanism is provided in the filter box 1 for cleaning impurities attached to the inner wall of the filter cartridge 5.

[0052] Reference Figure 2-Figure 4The cleaning mechanism comprises a support shell 7, a support plate 8, a cleaning assembly, a rotating mechanism and a lifting mechanism. The support shell 7 is fixedly arranged on the filter box 1, and a support port is opened on the inner bottom wall of the support shell 7, and the support port is communicated with the filter box 1. The support plate 8 is slidably arranged in the support shell 7, and a support column 9 is rotatably provided on the support plate 8. The support column 9 passes through the support port and extends into the filter box 1. The cleaning assembly is arranged on the support column 9 for cleaning the inner wall of the filter cartridge 5, the rotating mechanism is arranged in the support shell 7 for controlling the rotation of the support column 9, and the lifting mechanism is arranged in the support shell 7 for controlling the support plate 8 to reciprocate in the height direction. The cleaning assembly comprises a cleaning plate 10 and a fixed rod. A plurality of cleaning plates 10 are arranged on the peripheral side of the support column 9, and cleaning bristles are evenly distributed on the cleaning plate 10, and the cleaning bristles contact the inner wall of the filter cartridge 5. A plurality of fixed rods are fixed between the cleaning plate 10 and the support column 9, and the lifting mechanism comprises an adjusting shell 11, an adjusting disk 12, an adjusting rod 13 and a synchronous rotating mechanism. Driving mechanism, the adjusting shell 11 is fixedly set on the inner top wall of the supporting shell 7, and the adjusting disk 12 is rotatably set on the two opposite side walls of the adjusting shell 11. The eccentric position of the adjusting disk 12 is rotatably provided with a rotating shaft, and the adjusting rod 13 is hingedly set between the rotating shaft and the support plate 8. The synchronous rotation mechanism is set in the adjusting shell 11 for controlling the two adjusting disks 12 to rotate synchronously. The synchronous rotation mechanism includes an adjusting column 14, a first bevel gear 15 and a power input mechanism. The adjusting column 14 is rotatably set in the adjusting shell 11, and both ends of the adjusting column 14 are fixedly connected to the adjusting disk 12. The first bevel gear 15 is fixedly set on the adjusting column 14. The power input mechanism is set on the support shell 7 for controlling the rotation of the adjusting column 14. The power input mechanism includes a second bevel gear 16 and a first motor 17. The second bevel gear 16 is rotatably set on the inner top wall of the adjusting shell 11, and the first motor 17 is fixedly set on the support shell 7. The output end of the first motor 17 is fixedly connected to the second bevel gear 16.

[0053] Specifically, the operator can add the mother liquor into the filter cartridge 5 through the feed pipe 6, and then the mother liquor can be filtered through the filter cartridge 5. During the filtration process, the operator controls the first motor 17 to work, and the operation of the first motor 17 can drive the second bevel gear 16 to rotate. At the same time, the engagement of the second bevel gear 16 with the first bevel gear 15 drives the adjusting column 14 and the adjusting disk 12 to rotate synchronously. During the rotation of the adjusting disk 12, the supporting plate 8 and the supporting column 9 can be pulled to move back and forth in the height direction through the rotating shaft and the adjusting rod 13, so that the cleaning bristles on the cleaning plate 10 are driven by the fixed rod to clean the inner wall of the filter cartridge 5.

[0054] Reference Figure 2 and Figure 3The rotating mechanism includes a first annular rack 18, a first gear 19 and a driving mechanism. The first annular rack 18 is fixedly arranged on the support column 9, and the first gear 19 is rotatably arranged on the support plate 8. The first gear 19 is meshed with the first annular rack 18. The driving mechanism is arranged in the support shell 7 for controlling the first gear 19 to rotate. The driving mechanism includes a first driving port, a second driving port, a driving column 20 and a second motor 21. The first driving port is opened on the first gear 19, and the second driving port is opened on the support plate 8. The driving column 20 is rotatably arranged in the support shell 7. The driving column 20 passes through the first driving port and the second driving port. The driving column 20 is slidably connected to the side wall of the first driving port. The second motor 21 is fixedly arranged on the support shell 7. The output end of the second motor 21 is fixedly connected to the driving column 20. A slide groove is opened on the side wall of the driving column 20. A slider is fixedly arranged on the side wall of the first driving port. The slider extends into the slide groove and is slidably connected to the side wall of the slide groove.

[0055] Specifically, the operation of the second motor 21 can drive the driving column 20 to rotate, and at the same time, the cooperation between the slider and the slide groove can drive the first gear 19 to rotate, and at the same time, the engagement of the first gear 19 and the first annular rack 18 can drive the support column 9 to rotate, thereby making the fixing rod and the cleaning plate 10 move around the support column 9. The movement of the cleaning plate 10 can drive the cleaning brush to clean the inner wall of the filter cylinder 5.

[0056] Reference Figure 2 A second annular rack 22 is fixedly provided on the side wall of the filter cartridge 5 , and a second gear 23 is rotatably provided on the inner top wall of the filter box 1 . The second gear 23 is engaged with the second annular rack 22 , and the second gear 23 is fixedly connected to the drive column 20 .

[0057] Specifically, the rotation of the driving column 20 can drive the second gear 23 to rotate, and at the same time, the engagement of the second gear 23 and the second annular rack 22 can drive the filter cartridge 5 to rotate, thereby improving the filtration efficiency under the action of centrifugal force. At the same time, the filter cartridge 5 and the support column 9 can be controlled to rotate in opposite directions, thereby improving the cleaning efficiency.

[0058] When the filter element 5 is in operation, the operator can add the mother liquid into the filter cartridge 5 through the feed pipe 6, and then the mother liquid can be filtered through the filter cartridge 5. During the filtering process, the operator controls the first motor 17 to work, and the operation of the first motor 17 can drive the second bevel gear 16 to rotate. At the same time, the engagement of the second bevel gear 16 with the first bevel gear 15 drives the adjusting column 14 and the adjusting disk 12 to rotate synchronously. During the rotation of the adjusting disk 12, the supporting plate 8 and the supporting column 9 can be pulled to move back and forth in the height direction through the rotating shaft and the adjusting rod 13, so that the cleaning bristles on the cleaning plate 10 are driven by the fixed rod to clean the inner wall of the filter cartridge 5. At the same time, the operator controls the second motor 21 to work, and the operation of the second motor 21 can drive the driving column 20 to rotate. At the same time, the first gear 19 can be driven to rotate through the cooperation of the slider and the slide groove. At the same time, the engagement of the first gear 19 and the first annular rack 18 drives the support column 9 to rotate, thereby making the fixed rod and the cleaning plate 10 move around the support column 9. The movement of the cleaning plate 10 can drive the cleaning brush to clean the inner wall of the filter drum 5. The rotation of the driving column 20 can drive the second gear 23 to rotate. At the same time, the engagement of the second gear 23 and the second annular rack 22 drives the filter drum 5 to rotate, thereby improving the filtration efficiency under the action of centrifugal force. At the same time, the filter drum 5 and the support column 9 can be controlled to rotate in opposite directions, thereby improving the cleaning efficiency. The filtered mother liquor can be discharged from the filter box 1 through the second discharge pipe 2. For the discharge of solid particles, the operator can reduce the speed of the second motor 21, so that the filter drum 5 and the support column 9 rotate slowly, so that the solid particles are discharged through the first discharge pipe 4 under the action of gravity.

[0059] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A centrifuge mother liquor filtration device for producing methyl benzenesulfonamide, characterized in that: include: A filter box (1), wherein a fixing platform is fixedly provided on the inner bottom wall of the filter box (1), and a second discharge pipe (2) is provided in communication with the side wall of the filter box (1); A positioning plate (3), the positioning plate (3) being rotatably mounted on the fixed platform, a first discharge pipe (4) being fixed and connected to the positioning plate (3), the first discharge pipe (4) passing through the fixed platform and extending out of the filter box (1), the first discharge pipe (4) having a built-in discharge control valve; A filter cartridge (5), the filter cartridge (5) being fixedly disposed on the positioning plate (3), the filter cartridge (5) being in contact with the inner top wall of the filter box (1); A feed pipe (6), the feed pipe (6) is provided through the inner top wall of the filter box (1), and the feed pipe (6) extends into the filter cartridge (5); A cleaning mechanism is provided in the filter box (1) and is used to clean impurities attached to the inner wall of the filter cartridge (5).

2. A centrifuge mother liquor filtration device for producing methyl o-formate benzenesulfonamide according to claim 1, characterized in that, The cleaning mechanism comprises: A support shell (7), the support shell (7) is fixedly arranged on the filter box (1), a support opening is provided on the inner bottom wall of the support shell (7), and the support opening is communicated with the filter box (1); A support plate (8), the support plate (8) being slidably disposed in the support shell (7), a support column (9) being rotatably disposed on the support plate (8), the support column (9) penetrating the support opening and extending into the filter box (1); A cleaning assembly, the cleaning assembly being arranged on the support column (9) and being used for cleaning the inner wall of the filter cartridge (5); A rotation mechanism, the rotation mechanism being arranged in the support shell (7) and being used to control the rotation of the support column (9); A lifting mechanism is provided in the support shell (7) and is used to control the support plate (8) to perform reciprocating movement in a height direction.

3. A centrifuge mother liquor filtration device for producing methyl benzenesulfonamide according to claim 2, characterized in that, The cleaning component includes: Cleaning plates (10), a plurality of cleaning plates (10) are provided on the peripheral side of the support column (9), cleaning bristles are uniformly distributed on the cleaning plates (10), and the cleaning bristles are in contact with the inner wall of the filter cartridge (5); Fixed rods, a plurality of fixed rods are fixedly arranged between the cleaning plate (10) and the support column (9).

4. A centrifuge mother liquor filtration device for producing methyl o-formate benzenesulfonamide according to claim 3, characterized in that, The lifting mechanism comprises: an adjusting housing (11), the adjusting housing (11) being fixedly arranged on the inner top wall of the supporting housing (7); An adjusting disk (12), the adjusting disk (12) being rotatably provided on two opposite side walls of the adjusting housing (11), and a rotating shaft being rotatably provided at an eccentric position of the adjusting disk (12); an adjusting rod (13), the adjusting rod (13) being hingedly arranged between the rotating shaft and the supporting plate (8); A synchronous rotation mechanism is provided in the adjustment housing (11) and is used to control the two adjustment disks (12) to rotate synchronously.

5. A centrifuge mother liquor filtration device for producing methyl o-formate benzenesulfonamide according to claim 4, characterized in that, The synchronous rotation mechanism comprises: An adjusting column (14), the adjusting column (14) being rotatably disposed in the adjusting housing (11), and both ends of the adjusting column (14) being fixedly connected to the adjusting disk (12); a first bevel gear (15), the first bevel gear (15) being fixedly arranged on the adjustment column (14); A power input mechanism is provided on the support housing (7) and is used to control the rotation of the adjustment column (14).

6. A centrifuge mother liquor filtration device for producing methyl o-formate benzenesulfonamide according to claim 5, characterized in that, The power input mechanism comprises: a second bevel gear (16), the second bevel gear (16) being rotatably disposed on the inner top wall of the adjustment housing (11); A first motor (17), wherein the first motor (17) is fixedly disposed on the supporting housing (7), and an output end of the first motor (17) is fixedly connected to the second bevel gear (16).

7. A centrifuge mother liquor filtration device for producing methyl o-formate benzenesulfonamide according to claim 6, characterized in that: The rotating mechanism comprises: a first annular rack (18), the first annular rack (18) being fixedly arranged on the support column (9); a first gear (19), the first gear (19) being rotatably disposed on the support plate (8), the first gear (19) being meshed with the first annular rack (18); A driving mechanism is provided in the supporting housing (7) and is used to control the first gear (19) to rotate.

8. A centrifuge mother liquor filtration device for producing methyl o-formate benzenesulfonamide according to claim 7, characterized in that: The driving mechanism comprises: A first drive port, the first drive port being opened on the first gear (19); A second drive port, the second drive port being provided on the support plate (8); A driving column (20), the driving column (20) being rotatably disposed in the supporting shell (7), the driving column (20) passing through the first driving port and the second driving port, the driving column (20) being slidably connected to a side wall of the first driving port; A second motor (21), the second motor (21) is fixedly arranged on the support housing (7), and an output end of the second motor (21) is fixedly connected to the driving column (20).

9. A centrifuge mother liquor filtration device for producing methyl o-formate benzenesulfonamide according to claim 8, characterized in that: A sliding groove is provided on the side wall of the driving column (20), and a sliding block is fixedly provided on the side wall of the first driving port. The sliding block extends into the sliding groove and is slidably connected to the side wall of the sliding groove.

10. A centrifuge mother liquor filtration device for producing methyl o-formate benzenesulfonamide according to claim 9, characterized in that: A second annular rack (22) is fixedly provided on the side wall of the filter cartridge (5), and a second gear (23) is rotatably provided on the inner top wall of the filter box (1), the second gear (23) is meshed with the second annular rack (22), and the second gear (23) is fixedly connected to the drive column (20).

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