Washing device for cellulose ether production

Abstract

The utility model discloses a washing device for cellulose ether production, and relates to the technical field of cellulose ether production.The washing device comprises a supporting frame, a kettle body installed on the supporting frame and a stirring mechanism installed in the kettle body, the outer wall of the top of the kettle body is fixedly connected with a stirring motor for driving the stirring mechanism to rotate, and the inner wall of the kettle body is fixedly connected with a partition plate; the stirring mechanism is located above the partition plate and comprises a stirring shaft rotationally connected to the inner wall of the top of the kettle body. The rotating shaft and the stirring blades are arranged at the bottom of the kettle body, and the rotating shaft rotates to drive the stirring blades to rotate, so that cellulose ether accumulated at the bottom of the reaction kettle is conveniently stirred and raised, and the situation that the cellulose ether accumulated at the bottom of the kettle body cannot be effectively cleaned is avoided; the problem that stirring is not sufficient when a cellulose ether raw material in an existing reaction kettle is cleaned is solved.

Description

Technical Field

[0001] The present application relates to the technical field of cellulose ether production, and particularly relates to a washing device for cellulose ether production. Background Art

[0002] Cellulose ether is a general term for a series of products formed by the reaction of alkali cellulose and an etherifying agent under certain conditions. It has excellent properties such as thickening, binding, emulsifying, suspending, dispersing, film-forming, stabilizing, water retention, and salt tolerance, and is widely used in fields such as coatings, cosmetics, ceramics, medicine, food, textiles, and papermaking. The common production method of cellulose ether is as follows: refined cotton is pulverized and alkalized with an alkali solution in an organic solvent to form alkali cellulose, and the alkali cellulose reacts with an etherifying agent to obtain a crude cellulose ether product. The crude cellulose ether product contains cellulose ether, by-products, water, an organic solvent, and excessive alkali. After neutralizing the excessive alkali and removing the solvent from the crude cellulose ether product, it is sent to a solid-liquid separation device to obtain a slurry.

[0003] After retrieval, a patent with the Chinese patent publication number CN220574262U discloses a washing kettle for cellulose ether production, which includes a kettle body, and also includes a steam inlet pipe, a liquid delivery pipe, an upper connecting column, a lower connecting column, and a stirring mechanism. The stirring mechanism includes a motor, a rotating shaft, a first connecting plate, a second connecting plate, a scraping plate, and a stirring plate. The lower connecting column is fixedly connected to the lower end of the kettle body, and a support plate is fixedly connected to the lower end of the lower connecting column. The motor is fixedly connected to the support plate. One end of the rotating shaft rotates through the support plate, and one end of the rotating shaft is fixedly connected to the motor. The other end of the rotating shaft rotates through the lower connecting column and the lower end of the kettle body in sequence, and the other end of the rotating shaft rotates into the kettle body. One side of the first connecting plate is fixedly connected to the other end of the rotating shaft. One end of the scraping plate is symmetrically fixedly connected to both ends of the first connecting plate. Both ends of the second connecting plate are fixedly connected to the other end of the scraping plate. Both ends of the stirring plate are fixedly connected to two scraping plates respectively. A connecting member is provided at the upper end of the second connecting plate. One end of the liquid delivery pipe is threadedly connected to the connecting member, and the other end of the liquid delivery pipe rotates through the kettle body and the upper connecting column in sequence. The steam inlet pipe is fixedly connected to one side of the outer periphery of the kettle body, and the steam inlet pipe communicates with the kettle body.

[0004] The following deficiencies exist in the above-mentioned washing kettle for cellulose ether production in the above patent: in the above patent, the raw materials in the kettle body are stirred and cleaned by arranging a stirring plate in the kettle body, but in the actual operation process, the stirring effect of the stirring plate is limited, and the raw materials are prone to gather at the bottom of the reaction kettle body, thus making it inconvenient to fully stir the raw materials in the reaction kettle. Summary of the Utility Model

[0005] In order to improve the problem of insufficient stirring during the cleaning of cellulose ether raw materials in the existing reaction kettle, the present application provides a washing device for cellulose ether production.

[0006] This application provides a washing device for the production of cellulose ether, which includes a support frame, a kettle body installed on the support frame, and a stirring mechanism installed in the kettle body. A stirring motor for driving the stirring mechanism to rotate is fixedly connected to the outer wall of the top of the kettle body. A partition is fixedly connected to the inner wall of the kettle body, and the stirring mechanism is located above the partition. The stirring mechanism includes a stirring shaft rotatably connected to the inner wall of the top of the kettle body, and a plurality of stirring blades are fixedly connected to the outer wall of the stirring shaft. A connecting component is arranged on the outer wall of the bottom of the stirring shaft.

[0007] With the above structure, by arranging the stirring mechanism in the kettle body, the stirring mechanism is convenient for stirring the cellulose ether raw material in the kettle body. The setting of the stirring motor is convenient for directly driving the stirring mechanism to rotate. When the stirring shaft rotates, the cellulose ether is directly stirred by the stirring blades.

[0008] The stirring mechanism further includes a rotating shaft rotatably connected to the outer wall of the partition, and three rotating blades are fixedly connected to the outer wall of the rotating shaft at equal distances. A ribbed groove is formed on the outer wall of the top of the rotating shaft.

[0009] With the above structure, the rotation of the rotating shaft on the partition is convenient for directly driving the rotating blades to rotate. When the rotating blades rotate, it is convenient for directly stirring the precipitated cellulose ether on the partition.

[0010] An installation cavity is formed inside the stirring shaft, and the connecting component is arranged on the inner wall of the installation cavity.

[0011] With the above structure, the setting of the installation cavity is convenient for installing the connecting component in the stirring shaft.

[0012] The connecting component includes a driving column slidably connected to the inner wall of the installation cavity, and a prism is fixedly connected to one end of the driving column. The specifications of the prism and the ribbed groove match each other.

[0013] With the above structure, the prism on the driving column is convenient for cooperating with the ribbed groove to make the stirring shaft and the rotating shaft rotate synchronously.

[0014] An installation frame is fixedly connected to the inner wall of the installation cavity, and a screw rod is rotatably connected to the outer wall of one side of the installation frame.

[0015] With the above structure, the setting of the installation frame is convenient for installing the screw rod.

[0016] A threaded groove is formed at one end of the driving column, and the screw rod is screwed on the inner wall of the threaded groove.

[0017] With the above structure, the rotation of the screw rod directly drives the driving column to slide in the installation cavity.

[0018] A servo motor is fixedly connected to the outer wall of the installation frame, and the output shaft of the servo motor is fixedly connected to the screw rod.

[0019] With the above structure, the rotation of the screw can be conveniently and directly driven by setting the servo motor.

[0020] Two discharge openings are provided on the outer wall of the bottom of the partition plate, and discharge valves are fixedly connected to the inner walls of the two discharge openings. A discharge pipe is installed on the outer wall of the bottom of the kettle body, and a feed pipe is fixedly connected to the outer wall of the top of the kettle body.

[0021] With the above structure, the washed raw materials can be conveniently discharged directly through the setting of the discharge valve.

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

[0023] 1. In this application, by setting the rotating shaft and the stirring blades at the bottom of the kettle body, the rotation of the rotating shaft drives the rotation of the stirring blades, which is convenient for stirring and lifting the cellulose ether accumulated at the bottom of the reaction kettle, thus avoiding the ineffective cleaning of the cellulose ether accumulated at the bottom of the kettle body and solving the problem of insufficient stirring during the cleaning of cellulose ether raw materials in the existing reaction kettle.

[0024] 2. In this application, by setting the connecting component on the stirring shaft, the connecting component is convenient for connecting the stirring shaft and the rotating shaft, so that the rotating blade and the stirring blade can rotate synchronously. Moreover, the cooperation between the prism in the connecting component and the rib groove on the rotating shaft facilitates the stable transmission between the stirring shaft and the rotating shaft, thus facilitating the stirring and lifting of the cellulose ether raw materials deposited at the bottom of the kettle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the overall schematic diagram of this application;

[0026] Figure 2 is the sectional view schematic diagram of the kettle body of this application;

[0027] Figure 3 is the schematic diagram of the stirring mechanism of this application;

[0028] Figure 4 is the schematic diagram of the partition plate of this application;

[0029] Figure 5 is the three-dimensional schematic diagram of the stirring mechanism of this application;

[0030] Figure 6 is the partial sectional view schematic diagram of the stirring shaft of this application.

[0031] Description of the reference numerals: 1, support frame; 2, kettle body; 3, stirring motor; 4, discharge pipe; 5, feed pipe; 6, partition plate; 7, discharge valve; 8, stirring mechanism; 9, stirring shaft; 10, stirring blade; 11, rotating shaft; 12, rotating blade; 13, rib groove; 14, connecting component; 15, servo motor; 16, mounting bracket; 17, screw; 18, mounting cavity; 19, driving column; 20, prism. DETAILED DESCRIPTION OF THE INVENTION

[0032] The following will further elaborate on this application in conjunction with the attached Figure 1-6 drawings.

[0033] Please refer to Figure 1-3 , a washing device for cellulose ether production, comprising a support frame 1, a kettle body 2 mounted on the support frame 1, and a stirring mechanism 8 mounted in the kettle body 2. A stirring motor 3 for driving the stirring mechanism 8 to rotate is fixedly connected to the outer wall of the top of the kettle body 2. A partition plate 6 is fixedly connected to the inner wall of the kettle body 2, and the stirring mechanism 8 is located above the partition plate 6. The stirring mechanism 8 includes a stirring shaft 9 rotatably connected to the inner wall of the top of the kettle body 2, and a plurality of stirring blades 10 are fixedly connected to the outer wall of the stirring shaft 9. A connecting component 14 is arranged on the outer wall of the bottom of the stirring shaft 9.

[0034] During use, by arranging the stirring mechanism 8 in the kettle body 2, the arrangement of the stirring mechanism 8 facilitates the stirring of the cellulose ether raw material in the kettle body 2. The arrangement of the stirring motor 3 facilitates directly driving the stirring mechanism 8 to rotate. When the stirring shaft 9 rotates, it directly stirs the cellulose ether through the stirring blades 10.

[0035] Referring to Figure 4 , the stirring mechanism 8 further includes a rotating shaft 11 rotatably connected to the outer wall of the partition plate 6, and three equally spaced rotating blades 12 are fixedly connected to the outer wall of the rotating shaft 11. A ribbed groove 13 is formed on the outer wall of the top of the rotating shaft 11. By rotating the rotating shaft 11 on the partition plate 6, it is convenient to directly drive the rotating blades 12 to rotate. When the rotating blades 12 rotate, it is convenient to directly stir the precipitated cellulose ether on the partition plate 6.

[0036] Referring to Figure 6 , an installation cavity 18 is formed inside the stirring shaft 9, and the connecting component 14 is arranged on the inner wall of the installation cavity 18. The arrangement of the installation cavity 18 facilitates the installation of the connecting component 14 in the stirring shaft 9.

[0037] Referring to Figure 6 , the connecting component 14 includes a driving column 19 slidably connected to the inner wall of the installation cavity 18, and a prism 20 is fixedly connected to one end of the driving column 19. The specifications of the prism 20 and the ribbed groove 13 are matched. By means of the prism 20 on the driving column 19, it is convenient to cooperate with the ribbed groove 13 to make the stirring shaft 9 and the rotating shaft 11 rotate synchronously.

[0038] Referring to Figure 6 , an installation frame 16 is fixedly connected to the inner wall of the installation cavity 18, and a screw rod 17 is rotatably connected to the outer wall of one side of the installation frame 16. The arrangement of the installation frame 16 facilitates the installation of the screw rod 17.

[0039] Referring to Figure 6, one end of the driving column 19 is provided with a threaded groove, and the screw rod 17 is screwed on the inner wall of the threaded groove. By rotating the screw rod 17, the driving column 19 is directly driven to slide in the installation cavity 18.

[0040] Referring to Figure 6 , a servo motor 15 is fixedly connected to the outer wall of the mounting frame 16, and the output shaft of the servo motor 15 is fixedly connected to the screw rod 17. The setting of the servo motor 15 facilitates directly driving the screw rod 17 to rotate.

[0041] Referring to Figure 4 , two discharge openings are provided on the bottom outer wall of the partition plate 6, and discharge valves 7 are fixedly connected to the inner walls of the two discharge openings. A discharge pipe 4 is installed on the bottom outer wall of the kettle body 2, and a feed pipe 5 is fixedly connected to the top outer wall of the kettle body 2. The setting of the discharge valve 7 facilitates directly discharging the washed raw materials.

[0042] The implementation principle of this application is as follows: When in use, when washing cellulose ether, it is directly injected into the kettle body 2 through the feed pipe 5, and then the stirring motor 3 is started. The stirring motor 3 directly drives the stirring blades 10 to stir the cellulose ether raw materials in the kettle body 2 through the stirring shaft 9. A connection component 14 is arranged on the stirring shaft 9. When the servo motor 15 in the connection component 14 is started, it directly drives the screw rod 17 to rotate. When the screw rod 17 rotates, it directly drives the driving column 19 to move. When the driving column 19 moves, it directly drives the prism 20 to act. When the prism 20 is inserted into the rib groove 13 on the rotating shaft 11, the stirring shaft 9 can drive the rotating shaft 11 to rotate synchronously, thereby facilitating the full stirring of the cellulose ether deposited at the bottom of the kettle body 2 by the rotating blades 12.

[0043] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A washing device for cellulose ether production, comprising a support frame (1), a kettle body (2) installed on the support frame (1), and a stirring mechanism (8) installed in the kettle body (2), characterized in that: A stirring motor (3) for driving the stirring mechanism (8) to rotate is fixedly connected to the outer wall of the top of the kettle body (2). A partition plate (6) is fixedly connected to the inner wall of the kettle body (2), and the stirring mechanism (8) is located above the partition plate (6). The stirring mechanism (8) includes a stirring shaft (9) rotatably connected to the inner wall of the top of the kettle body (2), and a plurality of stirring blades (10) are fixedly connected to the outer wall of the stirring shaft (9). A connecting component (14) is arranged on the outer wall of the bottom of the stirring shaft (9).

2. The washing device for cellulose ether production according to claim 1, wherein: The stirring mechanism (8) further includes a rotating shaft (11) rotatably connected to the outer wall of the partition plate (6), and three rotating blades (12) equally spaced are fixedly connected to the outer wall of the rotating shaft (11). A rib groove (13) is formed on the outer wall of the top of the rotating shaft (11).

3. The washing device for cellulose ether production according to claim 2, wherein: An installation cavity (18) is formed inside the stirring shaft (9), and the connecting component (14) is arranged on the inner wall of the installation cavity (18).

4. A washing device for the production of cellulose ether according to claim 3, characterized in that: The connecting component (14) includes a driving column (19) slidably connected to the inner wall of the installation cavity (18), and a prism (20) is fixedly connected to one end of the driving column (19). The specifications of the prism (20) match the specifications of the rib groove (13).

5. A washing device for the production of cellulose ether according to claim 4, characterized in that: An installation frame (16) is fixedly connected to the inner wall of the installation cavity (18), and a screw rod (17) is rotatably connected to the outer wall of one side of the installation frame (16).

6. The washing device for producing cellulose ether according to claim 5, characterized in that: A thread groove is formed at one end of the driving column (19), and the screw rod (17) is screwed on the inner wall of the thread groove.

7. The washing device for producing cellulose ether according to claim 6, characterized in that: A servo motor (15) is fixedly connected to the outer wall of the installation frame (16), and the output shaft of the servo motor (15) is fixedly connected to the screw rod (17).

8. A washing device for cellulose ether production according to claim 7, characterized in that: Two material discharge openings are formed on the outer wall of the bottom of the partition plate (6), and a material discharge valve (7) is fixedly connected to the inner wall of each of the two material discharge openings. A material discharge pipe (4) is installed on the outer wall of the bottom of the kettle body (2), and a feed pipe (5) is fixedly connected to the outer wall of the top of the kettle body (2).

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