Filter pressing tank for producing cellulose ether

Abstract

The utility model discloses a filter pressing tank for cellulose ether production, and relates to the technical field of cellulose ether production, the filter pressing tank comprises an upper tank body and a lower tank body, the inner wall of the lower tank body is fixedly connected with a mounting frame, the inner wall of the mounting frame is fixedly connected with a filter screen plate, and the outer wall of the top of the filter screen plate is rotatably connected with a cleaning seat; two openings are formed in the outer wall of the bottom of the cleaning seat, scraping plates are slidably connected to the inner walls of the two openings, and two fixing seats are fixedly connected to the inner wall of the top of the cleaning seat. The cleaning seat is arranged on the filter screen plate, the two adjustable scrapers are arranged at the bottom of the cleaning seat, filter residues on the filter screen plate can be conveniently cleaned through the arrangement of the scrapers, meanwhile, the two bidirectional screws are arranged in the cleaning seat, and the two threaded sleeves are arranged on the bidirectional screws to be matched with the connecting plates, so that the filter residues on the filter screen plate can be conveniently cleaned. The position of the scraping plate can be conveniently adjusted, the problem that an existing scraping plate is inconvenient to adjust is solved, and the cleaning efficiency of the cleaning base is improved by adjusting the position of the scraping plate.

Description

Technical Field

[0001] The present application relates to the technical field of cellulose ether production, and in particular to a filter press tank for cellulose ether production. Background Art

[0002] Cellulose ether is a widely used polymer compound. In the process of producing cellulose ether, one of the processes is filter pressing. After the production and synthesis of cellulose ether, post-treatment is required to remove the mixed solvent containing benzene substances such as toluene and alcohol substances such as isopropanol and methanol.

[0003] After searching, the Chinese patent application number CN219879196U discloses a filter press tank for the production of cellulose ether, including a sealed tank body and a scraper assembly and a filter screen plate located in the tank body; the tank body includes an upper tank body and a lower tank body connected to each other, and a scraper power assembly that can move up and down is arranged on the upper surface of the upper tank body, and an inlet is also arranged; the scraper assembly includes a rotating shaft and a main scraper plate fixedly arranged at the lower part of the rotating shaft and a side scraper plate fixedly arranged on the side of the rotating shaft.

[0004] The filter press tank for producing cellulose ether in the above-mentioned patent has the following shortcomings: in the above-mentioned patent, a main scraper plate is arranged in the tank body, and the main scraper plate is driven to conveniently scrape the filter material off the filter screen plate, but the main scraper plate is prone to wear when scraping, and the scraper in the above-mentioned patent is mainly adjusted by a scraper lifting rod, and its adjustment accuracy is low and it cannot effectively clean the filter residue on the filter screen plate. Utility Model Content

[0005] In order to improve the problem of poor cleaning effect of filter residue on the filter screen plate, the present application provides a filter press tank for cellulose ether production.

[0006] The present application provides a filter press tank for cellulose ether production, comprising an upper tank body and a lower tank body, wherein the inner wall of the lower tank body is fixedly connected to a mounting frame, and the inner wall of the mounting frame is fixedly connected to a filter screen plate, the top outer wall of the filter screen plate is rotatably connected to a cleaning seat, the bottom outer wall of the cleaning seat is provided with two openings, and the inner walls of the two openings are slidably connected to scrapers, the top inner wall of the cleaning seat is fixedly connected to two fixing seats, and two bidirectional screws are rotatably connected between the two fixing seats and the inner wall of the cleaning seat, the outer walls of the two bidirectional screws are screwed with two threaded sleeves, the outer walls of the four threaded sleeves are rotatably connected to connecting plates, the four connecting plates are grouped in pairs, and the two groups of connecting plates are rotatably connected to the outer walls of the two scrapers respectively.

[0007] By adopting the above structure, the scraper can be driven to rotate by the cleaning seat to facilitate cleaning of the filter residue adhered to the filter screen plate. As the thickness of the cellulose ether filter residue layer decreases, the position of the scraper needs to be adjusted. During adjustment, the bidirectional screw is driven to rotate, thereby driving the two threaded sleeves to move toward each other. When the threaded sleeves move toward each other, the scraper is directly pushed to move through the connecting plate, so that the cellulose ether filter residue can be further cleaned.

[0008] A servo motor is fixedly connected to the inner wall of the top of the cleaning seat, and a synchronous wheel is fixedly connected to the output shaft of the servo motor. A battery is fixedly connected to the inner wall of the top of the cleaning seat, and the battery is electrically connected to a controller. The controller is electrically connected to the servo motor, and the controller is built into the battery.

[0009] With the above structure, the servo motor can be directly used to drive the synchronous wheel to rotate, and the battery can provide electrical energy to the servo motor.

[0010] The same synchronous wheel 2 is fixedly connected between the two bidirectional screws, and the same synchronous belt is connected between the synchronous wheel 2 and the synchronous wheel 1.

[0011] With the above structure, the bidirectional screw can be driven to rotate by the servo motor through the setting of the synchronous belt.

[0012] The top outer wall of the cleaning seat is fixedly connected with a mounting column, and the top outer wall of the mounting column is provided with an angular groove.

[0013] By adopting the above structure, the cleaning seat can be conveniently driven to rotate by connecting the cleaning seat to the installation column.

[0014] A prism is inserted into the inner wall of the prism groove, and a rotating shaft is fixedly connected to the top outer wall of the prism.

[0015] With the above structure, the cooperation between the rotating shaft and the prism facilitates the cleaning seat to rotate through the mounting column, thereby facilitating the cleaning of the filter residue on the filter screen plate.

[0016] A circular opening is formed on the outer wall of the top of the upper tank body, and the rotating shaft is slidably connected to the inner wall of the circular opening.

[0017] With the above structure, the extension of the rotating shaft is facilitated by the setting of the round opening.

[0018] A feed port is provided on the top outer wall of the upper tank body, and a feed pipe is fixedly connected to the inner wall of the feed port; a discharge port is provided on the bottom outer wall of the lower tank body, and a discharge pipe is fixedly connected to the inner wall of the discharge port.

[0019] With the above structure, the feed pipe is provided to facilitate the injection of raw materials into the tank body, and the discharge pipe is provided to facilitate the discharge of filtered raw materials.

[0020] The outer wall of the lower tank body is fixedly connected with three hydraulic cylinders which are distributed at equal distances, and one end of the piston rods of the three hydraulic cylinders is fixedly connected to the upper tank body.

[0021] With the above structure, the upper tank body can be conveniently driven to open and close through the arrangement of the hydraulic cylinder.

[0022] In summary, the beneficial effects of this application are as follows:

[0023] The present application arranges a cleaning seat on the filter screen plate, and arranges two adjustable scrapers at the bottom of the cleaning seat. The scrapers are arranged to facilitate cleaning of the filter residue on the filter screen plate. At the same time, two bidirectional screws are arranged in the cleaning seat. The two-way screws are provided with two threaded sleeves and connecting plates, which cooperate to facilitate adjustment of the position of the scraper, thereby solving the problem that the existing scraper is inconvenient to adjust. The cleaning efficiency of the cleaning seat is improved by adjusting the position of the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the entire application;

[0025] Figure 2 It is a schematic diagram of the tank under this application;

[0026] Figure 3 It is a schematic diagram of the cleaning seat of this application;

[0027] Figure 4 It is a schematic cross-sectional view of the cleaning seat of this application.

[0028] Explanation of the accompanying drawings: 1. Upper tank body; 2. Lower tank body; 3. Hydraulic cylinder; 4. Rotating shaft; 5. Feed pipe; 6. Cleaning seat; 7. Mounting frame; 8. Filter screen; 9. Mounting column; 10. Ribbon groove; 11. Fixed seat; 12. Bidirectional screw; 13. Scraper; 14. Connecting plate; 15. Threaded sleeve; 16. Servo motor; 17. Synchronous belt; 18. Battery. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-4 This application is described in further detail.

[0030] See also Figure 1-3A filter press tank for producing cellulose ether comprises an upper tank body 1 and a lower tank body 2, the inner wall of the lower tank body 2 is fixedly connected with a mounting frame 7, and the inner wall of the mounting frame 7 is fixedly connected with a filter screen plate 8, the outer wall of the top of the filter screen plate 8 is rotatably connected with a cleaning seat 6, the outer wall of the bottom of the cleaning seat 6 is provided with two openings, and the inner walls of the two openings are slidably connected with scrapers 13, the inner wall of the top of the cleaning seat 6 is fixedly connected with two fixing seats 11, and two bidirectional screws 12 are rotatably connected between the two fixing seats 11 and the inner wall of the cleaning seat 6, the outer walls of the two bidirectional screws 12 are screwed with two threaded sleeves 15, the outer walls of the four threaded sleeves 15 are rotatably connected with connecting plates 14, the four connecting plates 14 are grouped in pairs, and the two groups of connecting plates 14 are rotatably connected to the outer walls of the two scrapers 13 respectively.

[0031] When in use, the scraper 13 is driven to rotate by the cleaning seat 6 to clean the filter residue adhered to the filter screen plate 8. As the thickness of the cellulose ether filter residue layer decreases, the position of the scraper 13 needs to be adjusted. During adjustment, the bidirectional screw 12 is driven to rotate, thereby driving the two threaded sleeves 15 to move toward each other. When the threaded sleeves 15 move toward each other, the scraper 13 is directly pushed to move through the connecting plate 14, so that it can further clean the cellulose ether filter residue.

[0032] Reference Figure 4 A servo motor 16 is fixedly connected to the inner wall of the top of the cleaning seat 6, and a synchronous wheel 1 is fixedly connected to the output shaft of the servo motor 16. A battery 18 is fixedly connected to the inner wall of the top of the cleaning seat 6, and the battery 18 is electrically connected to a controller. The controller is electrically connected to the servo motor 16, and the controller is built into the battery 18. The servo motor 16 is conveniently set to directly drive the synchronous wheel 1 to rotate, and the battery 18 and the controller are convenient to provide electrical energy to the servo motor 16.

[0033] Reference Figure 4 A same synchronous wheel 2 is fixedly connected between the two bidirectional screws 12, and a same synchronous belt 17 is connected between the synchronous wheel 2 and the synchronous wheel 1. The setting of the synchronous belt 17 facilitates the bidirectional screws 12 to rotate by the servo motor 16.

[0034] Reference Figure 3 The top outer wall of the cleaning seat 6 is fixedly connected with a mounting column 9, and the top outer wall of the mounting column 9 is provided with an angular groove 10, which is connected to the cleaning seat 6 through the mounting column 9 to facilitate the cleaning seat 6 to rotate.

[0035] Reference Figure 3 A prism is inserted into the inner wall of the prism groove 10, and the top outer wall of the prism is fixedly connected to the rotating shaft 4. The cooperation between the rotating shaft 4 and the prism facilitates the cleaning seat 6 to rotate through the mounting column 9, thereby facilitating the cleaning of the filter residue on the filter screen plate 8.

[0036] Reference Figure 1A circular opening is provided on the outer wall of the top of the upper tank body 1, and the rotating shaft 4 is slidably connected to the inner wall of the circular opening, and the extension of the rotating shaft 4 is facilitated by the setting of the circular opening.

[0037] Reference Figure 1 A feed port is provided on the top outer wall of the upper tank body 1, and a feed pipe 5 is fixedly connected to the inner wall of the feed port. A discharge port is provided on the bottom outer wall of the lower tank body 2, and a discharge pipe is fixedly connected to the inner wall of the discharge port. The feed pipe 5 is provided to facilitate the injection of raw materials into the tank body, and the discharge pipe is provided to facilitate the discharge of the filtered raw materials.

[0038] Reference Figure 1-2 The outer wall of the lower tank body 2 is fixedly connected with three hydraulic cylinders 3 which are equally distributed, and one end of the piston rods of the three hydraulic cylinders 3 is fixedly connected to the upper tank body 1. The setting of the hydraulic cylinders 3 facilitates the opening and closing of the upper tank body 1.

[0039] The implementation principle of the present application is as follows: when in use, the cleaning seat 6 is driven to rotate by rotating the rotating shaft 4. When the cleaning seat 6 rotates, the scraper 13 thereon is convenient for cleaning out the filter residue on the filter screen plate 8. As the cleaning time increases, the position of the scraper 13 needs to be adjusted. During adjustment, the servo motor 16 is started. When the servo motor 16 is started, the two bidirectional screws 12 are driven to rotate through the synchronous belt 17. When the bidirectional screw 12 rotates, the two threaded sleeves 15 thereon move toward or away from each other. When the two threaded sleeves 15 move toward each other, the scraper 13 is directly pushed out through the connecting plate 14, thereby facilitating the adjustment of the position of the scraper 13. The battery 18 provides electrical energy for the servo motor 16.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A filter press tank for producing cellulose ether, comprising an upper tank body (1) and a lower tank body (2), characterized in that: The inner wall of the lower tank body (2) is fixedly connected to a mounting frame (7), and the inner wall of the mounting frame (7) is fixedly connected to a filter screen plate (8); the top outer wall of the filter screen plate (8) is rotatably connected to a cleaning seat (6); the bottom outer wall of the cleaning seat (6) is provided with two openings, and the inner walls of the two openings are slidably connected to a scraper (13); the top inner wall of the cleaning seat (6) is fixedly connected to two fixing seats (11), and two bidirectional screws (12) are rotatably connected between the two fixing seats (11) and the inner wall of the cleaning seat (6); the outer walls of the two bidirectional screws (12) are screwed to two threaded sleeves (15), and the outer walls of the four threaded sleeves (15) are rotatably connected to a connecting plate (14); the four connecting plates (14) are grouped in pairs, and the two groups of connecting plates (14) are rotatably connected to the outer walls of the two scrapers (13) respectively.

2. The filter press for producing cellulose ether according to claim 1, characterized in that: A servo motor (16) is fixedly connected to the inner wall of the top of the cleaning seat (6), and a synchronous wheel (1) is fixedly connected to the output shaft of the servo motor (16). A battery (18) is fixedly connected to the inner wall of the top of the cleaning seat (6), and the battery (18) is electrically connected to a controller. The controller is electrically connected to the servo motor (16), and the controller is built into the battery (18).

3. The filter press for producing cellulose ether according to claim 2, characterized in that: The same synchronous wheel 2 is fixedly connected between the two bidirectional screw rods (12), and the same synchronous belt (17) is connected between the synchronous wheel 2 and the synchronous wheel 1.

4. The filter press for producing cellulose ether according to claim 3, characterized in that: The top outer wall of the cleaning seat (6) is fixedly connected to a mounting column (9), and the top outer wall of the mounting column (9) is provided with an angular groove (10).

5. The filter press for producing cellulose ether according to claim 4, characterized in that: A prism is inserted into the inner wall of the prism groove (10), and a rotating shaft (4) is fixedly connected to the top outer wall of the prism.

6. The filter press for producing cellulose ether according to claim 5, characterized in that: The top outer wall of the upper tank body (1) is provided with a circular opening, and the rotating shaft (4) is slidably connected to the inner wall of the circular opening.

7. The filter press for producing cellulose ether according to claim 6, characterized in that: The top outer wall of the upper tank body (1) is provided with a feed port, and the inner wall of the feed port is fixedly connected to a feed pipe (5); the bottom outer wall of the lower tank body (2) is provided with a discharge port, and the inner wall of the discharge port is fixedly connected to a discharge pipe.

8. The filter press for producing cellulose ether according to claim 7, characterized in that: The outer wall of the lower tank body (2) is fixedly connected to three hydraulic cylinders (3) distributed at equal distances, and one end of the piston rods of the three hydraulic cylinders (3) is fixedly connected to the upper tank body (1).

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