Crushing device for cellulose ether production raw materials

Abstract

The utility model relates to the field of cellulose ether production, in particular to a crushing device for cellulose ether production raw materials, which aims to solve the problems that a large amount of cotton fibers are swung and splashed out of the device when the cotton raw materials are crushed, so that the cotton fibers are inhaled into lungs by workers, and the body health is damaged, and comprises a crushing box, a turning plate sealing mechanism is rotatably mounted at the opening end of the raw material filling pipe, a crushing cavity is formed in the crushing box, and a crushing mechanism is mounted in the crushing cavity; and a wadding suction mechanism is mounted on the side wall of the crushing box. The raw material filling pipe is covered with the turning plate sealing mechanism, so that a large amount of produced cotton fibers can be prevented from flying out of the raw material filling pipe, meanwhile, the leaked cotton fibers can be absorbed when the sealing turning plate is turned over through the cotton fiber absorbing mechanism, and the content of the cotton fibers flying into the air can be reduced through mutual cooperation of the cotton fiber absorbing mechanism and the sealing turning plate during crushing processing; therefore, the suction volume of workers is reduced, and a good working environment is created.

Description

Technical Field

[0001] The utility model relates to the field of cellulose ether production, in particular to a pulverizing device for raw materials in cellulose ether production. Background Art

[0002] Cellulose is the most abundant natural organic matter in the world. Cotton has a cellulose content of nearly 100%, which is the purest natural source of cellulose. Cellulose is an important raw material for papermaking. In addition, products made from cellulose are also widely used in plastics, explosives, electrical engineering and scientific research equipment. After etherification, cellulose can be dissolved in water, dilute alkaline solutions and organic solvents, and has thermoplasticity, which has a wider range of uses and a bright industrial prospect. Cellulose ether is a synthetic polymer made from natural cellulose through chemical modification. Cellulose ether is a derivative of natural cellulose. The production of cellulose ether is different from that of synthetic polymers. Its most basic material is cellulose, a natural high molecular compound. Refined cotton, wheat straw, hemp stalks, etc. are all raw materials for the preparation of cellulose ether crushing and processing.

[0003] A Chinese utility model (Announcement No.: CN218590741U) discloses a pulverizing device for raw materials for the production of methyl cellulose ether, comprising a pulverizing frame, a raw material opening unit on the top of the pulverizing frame, and a discharge hopper at the bottom. The pulverizing frame is provided with multiple groups of pulverizing units from top to bottom to further pulverize the raw materials that have not been completely pulverized, and each group of the pulverizing units includes a pulverizing component and a screening component connected in sequence, wherein the screening component is arranged obliquely so that the raw materials that have not been screened in the upper group are introduced into the lower group of pulverizing units by gravity, and the screened materials can fall from the upper screening component to the lower screening component. The pulverizing device of the utility model is provided with multiple groups of pulverizing units from top to bottom to further pulverize the raw materials that have not been completely pulverized. The raw materials are pulverized and screened downward for multiple times, so that the cotton raw materials that finally fall to the bottom are basically small in particle size, which meets the production requirements, and the opening mechanism is integrated and connected. The entire device occupies a small area and works efficiently.

[0004] In the above technical solution, the raw material is crushed by a crushing component, but when the cotton raw material is crushed, a large amount of cotton wool will float and splash out of the device, which will be inhaled into the lungs of workers and damage their health. Therefore, a crushing device for cellulose ether production raw materials is now proposed. Utility Model Content

[0005] In order to improve the problem that when pulverizing cotton raw materials, a large amount of cotton wool will float and splash out from the device, which will be inhaled into the lungs of workers and damage their health, the utility model provides a pulverizing device for cellulose ether production raw materials.

[0006] The utility model provides a pulverizing device for raw materials for producing cellulose ether, which adopts the following technical scheme:

[0007] A pulverizing device for raw materials for producing cellulose ether comprises a pulverizing box, the upper end surface of which is provided with a raw material filling pipe, the open end of which is rotatably provided with a flap sealing mechanism, a pulverizing chamber is provided inside the pulverizing box, a pulverizing mechanism is installed inside the pulverizing chamber, and the bottom end of the pulverizing chamber is connected to a discharge assembly; a fluff suction mechanism is installed on the side wall of the pulverizing box, and the fluff suction mechanism is connected to the raw material filling pipe.

[0008] By adopting the above technical scheme, by covering the flap sealing mechanism on the raw material filling pipe, it is possible to prevent the generated cotton wool from flying out therefrom in large quantities. At the same time, the cotton wool suction mechanism can absorb the leaked cotton wool when the sealing flap is flipped. Through the mutual cooperation of the two, the content of cotton wool flying into the air during the crushing process can be reduced, thereby reducing the amount of cotton wool inhaled by workers and creating a good working environment.

[0009] Optionally, the flap sealing mechanism includes a sealing flap, and the sealing flap is rotatably connected to the raw material filling pipe through a rotating shaft.

[0010] By adopting the above technical solution, the sealing flap can be rotated through the rotating shaft, so that the raw material filling pipe can be opened conveniently for discharging the material.

[0011] Optionally, both rotating shafts are sleeved with torsion springs, and the sealing flap is elastically rotated on the raw material filling pipe through the rotating shafts and the torsion springs.

[0012] By adopting the above technical solution, the raw material filling pipe can be turned over and sealed in time after the raw material is filled due to the action of the torsion spring, so as to prevent the cotton wool produced by crushing from overflowing in large quantities from the raw material filling pipe.

[0013] Optionally, the crushing mechanism includes a servo motor, which is fixedly mounted on one end side wall of the crushing box through a motor seat, and the output shaft of the servo motor passes through the crushing box and is fixedly connected to a transmission shaft, on which a plurality of fixed crushing knives are fixedly mounted.

[0014] By adopting the above technical solution, the fixed crushing knife can rotate in the crushing box through the transmission shaft and the servo motor, so that the raw materials can be crushed.

[0015] Optionally, a movable crushing knife is provided on one side of the fixed crushing knife, and the movable crushing knife is connected to the transmission shaft via a sliding knife groove.

[0016] By adopting the above technical solution, the movable crushing knife can also rotate in the crushing box through the transmission shaft and the servo motor, so that the cotton thread wrapped on the fixed crushing knife can be cut and crushed by the mutual proximity of the movable crushing knife and the fixed crushing knife. At the same time, by setting two movable crushing knives, the crushing effect can be better increased.

[0017] Optionally, a ball bearing is installed inside the bottom end of the sliding knife groove, and a ball bearing pad is laid at the connection between the ball bearing and the movable crushing knife.

[0018] By adopting the above technical solution, the ball pad can limit the ball, and the ball can make the movable crushing knife slide smoothly in the sliding knife groove.

[0019] Optionally, the fluff suction mechanism includes an air pump, which is fixedly installed on one side of the crushing box, the air suction end of the air pump is connected to a fluff collecting box, the air suction end of the fluff collecting box is connected to a fluff suction pipe, and the end of the fluff suction pipe is connected to the filling end of the raw material filling pipe.

[0020] By adopting the above technical solution, the air pump, the lint collecting box and the lint suction pipe are connected to the filling end of the raw material filling pipe, so that the leaked lint can be absorbed when the sealing flap is turned over, thereby reducing the flying and splashing of the lint.

[0021] Optionally, a filter plate is slidably connected in the fluff collecting box, and a handle is fixedly connected to an end surface of the filter plate on a side facing away from the fluff collecting box.

[0022] By adopting the above technical solution, the filter plate can be pulled out from the cotton wool collecting box through the handle, so that the adsorbed cotton wool can be cleaned conveniently.

[0023] In summary, the utility model has the following beneficial effects:

[0024] 1. The utility model can prevent the cotton wool generated from flying out in large quantities by covering the raw material filling pipe with a flap sealing mechanism, and at the same time can absorb the cotton wool generated by crushing through the cotton wool suction mechanism. The mutual cooperation of the two can reduce the content of cotton wool flying into the air during the crushing process, thereby reducing the amount of cotton wool inhaled by workers, creating a good working environment, and avoiding a greater impact on the health of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model.

[0026] Figure 2 It is a schematic diagram of the structure of the crushing chamber of the utility model.

[0027] Figure 3 It is a schematic diagram of the structure of the fixed crushing knife and the movable crushing knife of the utility model.

[0028] Figure 4 This utility model Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0029] Figure 5 It is a structural schematic diagram of the flap sealing mechanism of the utility model.

[0030] Description of reference numerals:

[0031] 1. Crushing box; 2. Raw material filling pipe; 3. Flap sealing mechanism; 301. Sealing flap; 302. Rotating shaft; 303. Torsion spring; 4. Crushing mechanism; 401. Servo motor; 402. Transmission shaft; 403. Fixed crushing knife; 404. Movable crushing knife; 405. Sliding knife groove; 406. Ball; 407. Ball pad; 5. Flocculation suction mechanism; 501. Air pump; 502. Flocculation collecting box; 503. Filter plate; 504. Flocculation suction pipe; 6. Discharge assembly; 7. Crushing chamber. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-5 This application is described in further detail.

[0033] Please refer to Figure 1-2 A pulverizing device for raw materials for producing cellulose ether comprises a pulverizing box 1, wherein a raw material filling pipe 2 is installed on the upper end surface of the pulverizing box 1, and a flap sealing mechanism 3 is rotatably installed on the open end of the raw material filling pipe 2. A pulverizing chamber 7 is provided inside the pulverizing box 1, and the pulverizing chamber 7 is communicated with the raw material filling pipe 2. A pulverizing mechanism 4 is installed inside the pulverizing chamber 7, and a discharging assembly 6 is communicated with the bottom end of the pulverizing chamber 7. The discharging assembly 6 comprises a discharging pipe and a valve. When discharging is not required, the valve is used to close the discharging pipe; a lint suction mechanism 5 is installed on the side wall of the pulverizing box 1, and the lint suction mechanism 5 is communicated with the pulverizing chamber 7. By covering the flap sealing mechanism 3 on the raw material filling pipe 2, a large amount of cotton wool generated can be prevented from flying out therefrom. At the same time, the cotton wool sucking mechanism 5 can absorb the leaked cotton wool when the sealing flap 301 is turned over. The cooperation between the two can reduce the content of cotton wool flying into the air during the pulverizing process, thereby reducing the inhalation amount of the workers and creating a good working environment.

[0034] Reference Figure 1 and Figure 5The flap sealing mechanism 3 includes a sealing flap 301, and the sealing flap 301 is rotatably connected to the raw material filling pipe 2 through a rotating shaft 302. The sealing flap 301 can be rotated through the rotating shaft 302, so that the raw material filling pipe 2 can be opened conveniently for discharging. Torsion springs 303 are sleeved on the two rotating shafts 302. One end of the torsion spring 303 is inserted into the rotating shaft 302, and the other end is inserted into the inner wall of the raw material filling pipe 2. The sealing flap 301 rotates elastically on the raw material filling pipe 2 through the rotating shaft 302 and the torsion spring 303. The raw material filling pipe 2 after filling with raw materials can be turned over and sealed in time through the action of the torsion spring 303, so as to prevent the cotton wool generated by crushing from overflowing from the raw material filling pipe 2 in large quantities.

[0035] Reference Figure 1 , Figure 3 and Figure 4 The crushing mechanism 4 includes a servo motor 401, which is fixedly mounted on one end side wall of the crushing box 1 through a motor seat. The output shaft of the servo motor 401 penetrates the crushing box 1 and is fixedly connected to a transmission shaft 402. A plurality of fixed crushing knives 403 are fixedly mounted on the transmission shaft 402. The fixed crushing knives 403 can rotate in the crushing box 1 through the transmission shaft 402 and the servo motor 401, thereby crushing the raw materials. A movable crushing knife 404 is arranged on one side of the fixed crushing knife 403. The movable crushing knife 404 is connected to the transmission shaft 402 through a sliding knife groove 405. The sliding knife groove 405 is fixed on the shaft wall of the transmission shaft 402. The movable crushing knife 404 can also rotate in the crushing box 1 through the transmission shaft 402 and the servo motor 401. In this way, the cotton thread wound on the fixed crushing knife 403 can be cut and crushed by the mutual proximity of the movable crushing knife 404 and the fixed crushing knife 403. At the same time, by setting two kinds of crushing knives in a certain manner, the crushing effect can be better increased. A ball 406 is installed inside the bottom end of the sliding knife groove 405, and a ball pad 407 is laid at the connection between the ball 406 and the movable crushing knife 404. The ball pad 407 can limit the ball 406 and enable the movable crushing knife 404 to slide smoothly in the sliding knife groove 405.

[0036] Reference Figure 1The fluff suction mechanism 5 includes an air pump 501, which is fixedly installed on one side of the crushing box 1. The suction end of the air pump 501 is connected to a fluff collecting box 502, and the suction end of the fluff collecting box 502 is connected to a fluff suction pipe 504. The end of the fluff suction pipe 504 is interconnected with the filling end of the raw material filling pipe 2. The pipe mouth of the fluff suction pipe 504 is located above the sealing flap 301. The filling end of the raw material filling pipe 2 is interconnected through the air pump 501, the fluff collecting box 502 and the fluff suction pipe 504. When the sealing flap 301 is turned over, the leaked cotton wool can be absorbed to reduce the flying and splashing of the cotton wool. A filter plate 503 is slidably connected inside the fluff collecting box 502. The connection between the filter plate 503 and the inner wall of the fluff collecting box 502 matches each other to prevent the cotton wool from overflowing from the connection. A handle is fixedly connected to the end surface of the filter plate 503 on the side away from the fluff collecting box 502. The filter plate 503 can be pulled out of the fluff collecting box 502 through the handle, thereby facilitating the cleaning of the adsorbed cotton wool.

[0037] The implementation principle of the utility model is as follows: the cotton raw material to be processed and crushed is added from the raw material filling pipe 2, so that the sealing flap 301 can be rotated and turned by squeezing, so that the raw material can be added into the crushing chamber 7, and the sealing flap 301 is timely closed by the action of the torsion spring 303, and the servo motor 401 is started at the same time, and the movable crushing knife 404 and the fixed crushing knife 403 can rotate in the crushing box 1 through the transmission shaft 402 and the servo motor 401, so that the raw material can be crushed. During crushing, the air pump 501 is started, and the crushing chamber 7 is connected with the air pump 501, the flocculant box 502 and the flocculant suction pipe 504, so that the fine cotton wool generated during crushing can be adsorbed and processed, and the adsorbed cotton wool is filtered by the filter plate 503 and finally stored in the flocculant box 502. When cleaning is needed, the filter plate 503 can be pulled out of the flocculant box 502 by the handle, so that the filter plate 503 and the cotton wool adsorbed in the flocculant box 502 can be cleaned conveniently.

[0038] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A pulverizing device for raw materials for producing cellulose ether, comprising a pulverizing box (1), characterized in that: The upper end surface of the pulverizing box (1) is mounted with a raw material filling pipe (2), the open end of the raw material filling pipe (2) is rotatably mounted with a flap sealing mechanism (3), a pulverizing chamber (7) is provided inside the pulverizing box (1), a pulverizing mechanism (4) is mounted inside the pulverizing chamber (7), and the bottom end of the pulverizing chamber (7) is connected to a discharge assembly (6); a fluff suction mechanism (5) is mounted on the side wall of the pulverizing box (1), and the fluff suction mechanism (5) is connected to the raw material filling pipe (2).

2. A pulverizing device for raw materials for producing cellulose ether according to claim 1, characterized in that: The flap sealing mechanism (3) comprises a sealing flap (301), and the sealing flap (301) is rotatably connected to the raw material filling pipe (2) via a rotating shaft (302).

3. A pulverizing device for raw materials for producing cellulose ether according to claim 2, characterized in that: Torsion springs (303) are sleeved on the two rotating shafts (302), and the sealing flap (301) elastically rotates on the raw material filling pipe (2) via the rotating shafts (302) and the torsion springs (303).

4. The pulverizing device for raw materials for producing cellulose ether according to claim 1, characterized in that: The pulverizing mechanism (4) comprises a servo motor (401), the servo motor (401) being fixedly mounted on a side wall of one end of the pulverizing box (1) via a motor seat, the output shaft of the servo motor (401) passing through the pulverizing box (1) and being fixedly connected to a transmission shaft (402), and a plurality of groups of fixed pulverizing knives (403) being fixedly mounted on the transmission shaft (402).

5. A pulverizing device for raw materials for producing cellulose ether according to claim 4, characterized in that: A movable crushing knife (404) is provided on one side of the fixed crushing knife (403), and the movable crushing knife (404) is connected to the transmission shaft (402) via a sliding knife groove (405).

6. A pulverizing device for raw materials for producing cellulose ether according to claim 5, characterized in that: A ball bearing (406) is installed inside the bottom end of the sliding knife groove (405), and a ball bearing pad (407) is laid at the connection between the ball bearing (406) and the movable crushing knife (404).

7. The pulverizing device for raw materials for producing cellulose ether according to claim 1, characterized in that: The fluff suction mechanism (5) comprises an air pump (501), the air pump (501) being fixedly mounted on one side of the crushing box (1), the air suction end of the air pump (501) being connected to a fluff collecting box (502), the air suction end of the fluff collecting box (502) being connected to a fluff suction pipe (504), the end of the fluff suction pipe (504) being in communication with the filling end of the raw material filling pipe (2).

8. The pulverizing device for raw materials for producing cellulose ether according to claim 7, characterized in that: A filter plate (503) is slidably connected inside the fluff collecting box (502), and a handle is fixedly connected to an end surface of the filter plate (503) on a side facing away from the fluff collecting box (502).

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