Nitrocotton high-residue-free acid-expelling washing device and washing method

Abstract

The invention relates to the technical field of nitrocotton washing, in particular to a nitrocotton high-residue-free acid-driving washing device and method, and the nitrocotton high-residue-free acid-driving washing device comprises a washing tank, a water inlet seat, a cotton plate, a transmission box, a pump body, a filter tank, an acid discharging seat, a driving box, a console, an ultrasonic generator, a pushing mechanism, a water supply mechanism and a filtering mechanism. According to the device, cotton plates are pushed through the pushing mechanism, so that part of the device can drive the cotton plates to be transferred from a high-acid area on the right side of the washing tank to a clear water area on the left side of the washing tank, and residual acid in the cotton plates can be gradually diluted and removed conveniently; part of the device can stably supply clear water to the left side in the washing tank, acid water on the right side in the washing tank can be conveniently discharged through an acid discharging base, acid water filtration is achieved through a filtering mechanism, part of the device can filter nitrocotton fibers in the acid water, the nitrocotton fibers can be conveniently and evenly collected to the outer wall of a filter screen, and the filtering effect is improved. And the stability, the high efficiency and the convenience of the device are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of nitrocellulose washing, and particularly to a high-residue-free acid-removing washing device and a washing method for nitrocellulose. Background Art

[0002] Nitrocellulose is prepared by the esterification reaction of refined cotton and mixed acid in a nitrating machine. The acid-cotton mixture obtained after the esterification reaction needs to be subjected to operations such as acid removal and displacement washing to reduce the residual acidity in the cotton material and minimize the amount of residual acid as much as possible. Traditional nitrocellulose acid removal generally uses centrifugal washing, with a centrifuge used as the acid-removing machine. With the continuous improvement of the quality requirements of nitrocellulose in industrial production, it is necessary to develop a device and method that can achieve high-residue-free acid-removing washing to reduce the residual acid content and impurity content in nitrocellulose, improve the purity and stability of the product, and meet the strict quality requirements of nitrocellulose in different application fields.

[0003] Existing devices mainly wash nitrocellulose in stages through multiple groups of acid-removing devices with different acidities. Existing technologies are mostly similar to the continuous multi-stage acid-removing displacement washing process method. The structure disclosed in CN109056402A includes feeding the acid-cotton mixture after nitration reaction into a horizontal pusher centrifuge for acid-cotton separation. The sieve plate of the horizontal pusher centrifuge includes a high-concentration waste acid separation section and a displacement washing section, and five-stage countercurrent displacement washing is carried out in the displacement washing section. The present invention adopts a five-stage countercurrent displacement washing process. After acid removal, the residual acidity of the acidified cotton is controlled below 8%, and the residual acidity is greatly reduced compared with the traditional three-stage acid-removing process. Moreover, the final washing waste acid has a relatively high concentration, containing 18% - 22% nitric acid and 47% - 53% sulfur, which is convenient for waste acid treatment, separation and concentration. The process flow and operation are relatively simpler than the two-centrifuge series acid-removing process. However, there are still areas for optimization in this device.

[0004] Existing devices mainly use centrifuges to remove the residual acid in nitrocellulose, making it difficult for some devices to continuously drive the cotton board from the high-acid area on the right side of the washing pool to the clear water area on the left side of the washing pool, resulting in inconvenience in gradually diluting and removing the residual acid in the cotton board. Secondly, some devices are difficult to stably supply clear water to the left side inside the washing pool, resulting in inconvenience in discharging the acid water on the right side inside the washing pool through the acid discharge seat. Finally, some devices are difficult to filter the nitrocellulose flocs in the acid water, resulting in inconvenience in evenly collecting the nitrocellulose flocs on the outer wall of the filter screen, reducing the working efficiency and practicability of the device. Therefore, in order to solve the above problems, a high-residue-free acid-removing washing device and a washing method for nitrocellulose are proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-residue-free acid-removing washing device and washing method for nitrocellulose, so as to solve the problems mentioned in the above background technology. The existing devices in the prior art mainly use centrifuges to remove the residual acid in nitrocellulose, making it difficult for some devices to continuously drive the cotton board from the high-acid area on the right side of the washing pool to the clear water area on the left side of the washing pool, resulting in difficulty in gradually diluting and removing the residual acid in the cotton board. Secondly, it is difficult for some devices to stably supply clear water to the left side inside the washing pool, resulting in difficulty in discharging the acid water on the right side inside the washing pool through the acid discharge seat. Finally, it is difficult for some devices to filter the nitrocellulose flocs in the acid water, resulting in difficulty in evenly collecting the nitrocellulose flocs on the outer wall of the filter screen.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A high-residue-free acid-removing washing device for nitrocellulose, including a washing pool, a water inlet seat is fixedly connected to the lower left side of the washing pool, a cotton board is arranged inside the washing pool, a transmission box is fixedly connected to the upper part of the outer wall of the washing pool, a pump body is fixedly connected to the left side of the transmission box, the bottom of the drainage port of the pump body is fixedly connected to the top of the water inlet seat, a filter pool is fixedly connected to the right side of the washing pool, a acid discharge seat is fixedly connected to the bottom of the inner wall of the filter pool, the acid discharge pipe of the acid discharge seat passes through the right side wall of the filter pool, a driving box is fixedly connected to the top of the filter pool, a control console is fixedly connected to the front side of the filter pool, and an ultrasonic generator is fixedly connected to the bottom of the inner wall of the washing pool;

[0007] A pushing mechanism is arranged inside the transmission box, the pushing mechanism includes a first motor, the bottom of the first motor is fixedly connected to the upper left side of the top of the transmission box, a water supply mechanism is arranged inside the pump body, the water supply mechanism includes a linkage shaft, the rear end of the linkage shaft is movably connected to the rear side of the inner wall of the pump body, and a filtering mechanism is arranged inside the inner wall of the driving box, the filtering mechanism includes a second motor, and the rear side of the second motor is fixedly connected to the front side of the driving box.

[0008] Preferably, a transmission shaft is fixedly connected to the middle of the bottom of the first motor, the bottom end of the transmission shaft passes through the transmission box and is fixedly connected to a first bevel gear, a second bevel gear is meshed and connected below the first bevel gear, a movable shaft is fixedly connected to the inner wall of the second bevel gear, the rear end of the movable shaft is movably connected to the rear left side of the inner wall of the transmission box, and the front end of the movable shaft passes through the front side wall of the transmission box.

[0009] Preferably, driving crawler wheels are fixedly connected to the front and rear sides of the outer wall of the movable shaft inside the transmission box, a pushing crawler belt is closely attached to the outer wall of the driving crawler wheels, a driven crawler wheel is closely attached to the right side inner wall of the pushing crawler belt, and the driven crawler wheel is movably connected to the right side inner wall of the transmission box.

[0010] Preferably, a clamping seat is fixedly connected to the outer wall of the pushing crawler. The clamping seat is in the shape of a square platform. A pushing frame is sleeved on the outer wall of the clamping seat. The top of the cotton board is fixedly connected to the middle of the bottom of the pushing frame.

[0011] Preferably, a driving pulley is fixedly connected to the front end of the movable shaft. A linkage belt is closely attached to the right side of the outer wall of the driving pulley. A driven pulley is closely attached to the left side of the inner wall of the linkage belt.

[0012] Preferably, the front end of the linkage shaft passes through the front side wall of the pump body. The middle of the rear side of the driven pulley is fixedly connected to the front end of the linkage shaft. A screw blade is fixedly connected to the outer wall of the linkage shaft inside the pump body.

[0013] Preferably, a driving worm is fixedly connected to the middle of the rear side of the second motor. The rear end of the driving worm is movably connected to the rear side inner wall of the driving box. The left side of the outer wall of the driving worm is meshed and connected with a driving worm wheel.

[0014] Preferably, a rotating shaft is fixedly connected to the inner wall of the driving worm wheel. The top end of the rotating shaft is movably connected to the top inner wall of the driving box. The bottom end of the rotating shaft passes through the top of the filter tank and is fixedly connected to a main gear. The right side of the inner wall of the main gear is meshed and connected with an internal gear.

[0015] Preferably, a rotating frame is fixedly connected to the bottom of the internal gear. The top end of the rotating frame is movably connected to the top inner wall of the filter tank. The bottom end of the rotating frame is movably connected to the top inner wall of the acid discharge seat. A filter screen is fixedly connected to the outer wall of the rotating frame in a clamped manner.

[0016] A washing method for a high-residue-free acid removal washing device for nitrocellulose includes the following steps:

[0017] S1: The cotton board is sleeved on the clamping seat above the right side of the pushing crawler through the pushing frame, so that the cotton board is placed inside the washing tank.

[0018] S2: The ultrasonic generator is started through the console, so that the ultrasonic generator uses the water inside the washing tank as a medium to perform acid removal washing on the nitrocellulose inside the cotton board.

[0019] S3: The pushing mechanism is started through the console, so that the pushing mechanism drives the pushing frame and the cotton board to move to the left.

[0020] S4: The water supply mechanism is started through the console, so that the water supply mechanism supplies clean water to the left side inside the washing tank through the water inlet seat, and the acid water on the right side inside the washing tank is discharged through the acid discharge seat.

[0021] S5: The filtering mechanism is started through the console, so that the filtering mechanism drives the rotating frame and the filter screen to rotate in a limited way, facilitating the filtration and collection of nitrocellulose flocs in the acid water.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. Through structures such as the first motor, drive shaft, first bevel gear, second bevel gear, movable shaft, and driving crawler in the pushing mechanism of the present invention, when the first motor is started through the console to drive the drive shaft and the first bevel gear to rotate in a limited manner, the first bevel gear meshes to drive the second bevel gear, movable shaft, and driving crawler wheel to rotate in a limited manner. The driving crawler wheel cooperates with the driven crawler wheel to drive the pushing crawler to rotate in a limited manner. The pushing crawler drives the clamping seat to convey cyclically, and the clamping seat drives the pushing frame and the cotton board to slide to the left, realizing the pushing of the cotton board, enabling part of the device to drive the cotton board to transfer from the high-acid area on the right side of the washing pool to the clear-water area on the left side of the washing pool, facilitating the gradual dilution and removal of the residual acid in the cotton board, and improving the stability and practicality of the device.

[0024] 2. Through structures such as the driving pulley, linkage belt, driven pulley, linkage shaft, and auger blade in the water supply mechanism of the present invention, the movable shaft drives the linkage shaft to rotate in a limited manner through the driving pulley, linkage belt, and driven pulley. The linkage shaft drives the auger blade to rotate synchronously, enabling the auger blade to continuously convey clear water to the left side inside the washing pool through the water inlet seat, realizing the water supply of the washing pool, enabling part of the device to stably supply clear water to the left side inside the washing pool, facilitating the discharge of the acid water on the right side inside the washing pool through the acid discharge seat, and improving the efficiency and practicality of the device.

[0025] 3. Through structures such as the second motor, driving worm, driving worm gear, rotating shaft, main gear, internal gear, rotating frame, and filter screen in the filtering mechanism of the present invention, when the second motor is started through the console to drive the driving worm to rotate in a limited manner, the driving worm meshes to drive the driving worm gear, rotating shaft, and main gear to rotate in a limited manner. The main gear meshes to drive the internal gear, rotating frame, and filter screen to rotate in a limited manner, realizing the filtration of the acid water, enabling part of the device to filter the nitrocellulose flocs in the acid water, facilitating the uniform collection of the nitrocellulose flocs on the outer wall of the filter screen, and improving the convenience and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the front side view three-dimensional structure diagram of the present invention;

[0027] Figure 2 is the front view sectional three-dimensional structure diagram of the present invention;

[0028] Figure 3 is the left side view sectional three-dimensional structure diagram of the partial structure of the transmission box and the pushing mechanism of the present invention;

[0029] Figure 4 is the front view sectional three-dimensional structure diagram of the partial structure of the transmission box and the pushing mechanism of the present invention;

[0030] Figure 5This is a left-side perspective sectional view of the partial structure of the washing pool and the pushing mechanism of the present invention;

[0031] Figure 6 This is a top-view sectional perspective view of the partial structure of the pump body and the water supply mechanism of the present invention;

[0032] Figure 7 This is a left-side perspective sectional view of the partial structure of the drive box and the filtering mechanism of the present invention;

[0033] Figure 8 This is a front-view sectional perspective view of the partial structure of the filter tank and the filtering mechanism of the present invention.

[0034] In the figure: 101, washing pool; 102, water inlet seat; 103, cotton board; 104, transmission box; 105, pump body; 106, filter tank; 107, acid discharge seat; 108, drive box; 109, control console; 110, ultrasonic generator; 2, pushing mechanism; 201, first motor; 202, transmission shaft; 203, first bevel gear; 204, second bevel gear; 205, movable shaft; 206, driving sprocket; 207, pushing track; 208, driven sprocket; 209, card seat; 210, pushing frame; 3, water supply mechanism; 301, driving pulley; 302, connecting belt; 303, driven pulley; 304, connecting shaft; 305, auger blade; 4, filtering mechanism; 401, second motor; 402, driving worm; 403, driving worm gear; 404, rotating shaft; 405, main gear; 406, internal gear; 407, rotating frame; 408, filter screen. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Please refer to Figures 1-8 , an embodiment provided by the present invention:

[0037] A nitric acid cellulose high-residue-free acid removal washing device and washing method, including a washing pool 101, a water inlet seat 102 is fixedly connected to the lower left side of the washing pool 101, a cotton board 103 is arranged inside the washing pool 101, a transmission box 104 is fixedly connected to the upper part of the outer wall of the washing pool 101, a pump body 105 is fixedly connected to the left side of the transmission box 104, the bottom of the drainage port of the pump body 105 is fixedly connected to the top of the water inlet seat 102, a filter pool 106 is fixedly connected to the right side of the washing pool 101, a acid drainage seat 107 is fixedly connected to the bottom of the inner wall of the filter pool 106, the acid drainage pipe of the acid drainage seat 107 passes through the right side wall of the filter pool 106, a driving box 108 is fixedly connected to the top of the filter pool 106, a control console 109 is fixedly connected to the front side of the filter pool 106, and an ultrasonic generator 110 is fixedly connected to the bottom of the inner wall of the washing pool 101;

[0038] A pushing mechanism 2 is arranged inside the transmission box 104. The pushing mechanism 2 includes a first motor 201. The bottom of the first motor 201 is fixedly connected to the upper left side of the top of the transmission box 104. The middle of the bottom of the first motor 201 is fixedly connected to a transmission shaft 202. The bottom end of the transmission shaft 202 passes through the transmission box 104 and is fixedly connected to a first bevel gear 203. A second bevel gear 204 is meshed and connected below the first bevel gear 203. A movable shaft 205 is fixedly connected to the inner wall of the second bevel gear 204. The rear end of the movable shaft 205 is movably connected to the rear left side of the inner wall of the transmission box 104. The front end of the movable shaft 205 passes through the front side wall of the transmission box 104. Through this design, it is realized that the first motor 201 drives the transmission shaft 202 and the first bevel gear 203 to rotate in a limited way, so that the first bevel gear 203 meshes and drives the second bevel gear 204 and the movable shaft 205 to rotate in a limited way. The outer wall of the movable shaft 205 is fixedly connected with driving crawler wheels 206 on the front and rear sides inside the transmission box 104. The outer wall of the driving crawler wheels 206 is closely attached to a pushing crawler 207. The inner wall of the right side of the pushing crawler 207 is closely attached to a driven crawler wheel 208. The driven crawler wheel 208 is movably connected to the right side of the inner wall of the transmission box 104. Through this design, it is realized that the movable shaft 205 drives the driving crawler wheels 206 to rotate synchronously, so that the driving crawler wheels 206 cooperate with the driven crawler wheel 208 to drive the pushing crawler 207 to rotate in a limited way. A clamping seat 209 is fixedly connected to the outer wall of the pushing crawler 207. The outer shape of the clamping seat 209 is in the shape of a square platform. A pushing frame 210 is sleeved on the outer wall of the clamping seat 209. The top of the cotton board 103 is fixedly connected to the middle of the bottom of the pushing frame 210. Through this design, it is realized that the pushing crawler 207 drives the clamping seat 209, the pushing frame 210 and the cotton board 103 to slide to the left.

[0039] Inside the pump body 105, there is a water supply mechanism 3. The water supply mechanism 3 includes a linkage shaft 304. The rear end of the linkage shaft 304 is movably connected to the rear side of the inner wall of the pump body 105. The front end of the movable shaft 205 is fixedly connected with a driving pulley 301. The right side of the outer wall of the driving pulley 301 is closely attached to a linkage belt 302. The left side of the inner wall of the linkage belt 302 is closely attached to a driven pulley 303. Through this design, it is realized that the movable shaft 205 drives the linkage shaft 304 to rotate synchronously through the driving pulley 301, the linkage belt 302 and the driven pulley 303, so that the pushing mechanism 2 can be linked with the water supply mechanism 3. The front end of the linkage shaft 304 passes through the front side wall of the pump body 105. The middle part of the rear side of the driven pulley 303 is fixedly connected to the front end of the linkage shaft 304. A screw blade 305 is fixedly connected to the outer wall of the linkage shaft 304 inside the pump body 105. Through this design, it is realized that the linkage shaft 304 drives the screw blade 305 to rotate synchronously, so that the screw blade 305 can continuously transport clear water into the water inlet seat 102.

[0040] Inside the inner wall of the drive box 108, there is a filtering mechanism 4. The filtering mechanism 4 includes a second motor 401. The rear side of the second motor 401 is fixedly connected to the front side of the drive box 108. The middle part of the rear side of the second motor 401 is fixedly connected with a driving worm 402. The rear end of the driving worm 402 is movably connected to the rear side of the inner wall of the drive box 108. The left side of the outer wall of the driving worm 402 is meshed and connected with a driving worm gear 403. Through this design, it is realized that the second motor 401 drives the driving worm 402 to rotate in a limited way, so that the driving worm 402 meshes and drives the driving worm gear 403 to rotate. A rotating shaft 404 is fixedly connected to the inner wall of the driving worm gear 403. The top end of the rotating shaft 404 is movably connected to the top of the inner wall of the drive box 108. The bottom end of the rotating shaft 404 passes through the top of the filter tank 106 and is fixedly connected with a main gear 405. The right side of the inner wall of the main gear 405 is meshed and connected with an internal gear 406. Through this design, it is realized that the driving worm gear 403 drives the rotating shaft 404 and the main gear 405 to rotate in a limited way. The bottom of the internal gear 406 is fixedly connected with a rotating frame 407. The top end of the rotating frame 407 is movably connected to the top of the inner wall of the filter tank 106. The bottom of the rotating frame 407 is movably connected to the top of the inner wall of the acid discharge seat 107. A filter screen 408 is clamped and fixed to the outer wall of the rotating frame 407. Through this design, it is realized that the main gear 405 meshes and drives the internal gear 406, the rotating frame 407 and the filter screen 408 to rotate in a limited way, so that the filter screen 408 filters and collects nitrocellulose flocs in the acid water.

[0041] Working principle: When it is necessary to push the cotton board 103, first start the first motor 201 through the console 109. The first motor 201 drives the transmission shaft 202 to rotate with limited position. The transmission shaft 202 drives the first bevel gear 203 to rotate synchronously. The first bevel gear 203 meshes with and drives the second bevel gear 204 to rotate. The second bevel gear 204 drives the movable shaft 205 to rotate with limited position. The movable shaft 205 drives the driving crawler wheel 206 to rotate synchronously. The driving crawler wheel 206 cooperates with the driven crawler wheel 208 to drive the pushing crawler 207 to rotate with limited position. The pushing crawler 207 drives the card holder 209 to convey cyclically. The card holder 209 drives the pushing frame 210 and the cotton board 103 to slide leftward, realizing the pushing operation of the cotton board 103.

[0042] When it is necessary to supply water to the washing pool 101, first drive the driving pulley 301 to rotate synchronously through the movable shaft 205. The driving pulley 301 drives the linkage belt 302 to rotate. The linkage belt 302 drives the driven pulley 303 to rotate synchronously. The driven pulley 303 drives the linkage shaft 304 to rotate with limited position. The linkage shaft 304 drives the auger blade 305 to rotate synchronously, so that the auger blade 305 can continuously convey clear water to the left side inside the washing pool 101 through the water inlet seat 102, realizing the water supply operation of the washing pool 101.

[0043] When it is necessary to filter the acid water, first start the second motor 401 through the console 109. The second motor 401 drives the driving worm 402 to rotate with limited position. The driving worm 402 meshes with and drives the driving worm wheel 403 to rotate. The driving worm wheel 403 drives the rotating shaft 404 to rotate with limited position. The rotating shaft 404 drives the main gear 405 to rotate synchronously. The main gear 405 meshes with and drives the internal gear 406 to rotate. The internal gear 406 drives the rotating frame 407 to rotate with limited position. The rotating frame 407 drives the filter screen 408 to rotate synchronously, so that the filter screen 408 filters the acid water and evenly collects the nitrocotton flocs in the acid water on the outer wall of the filter screen 408, realizing the filtering operation of the acid water, and the operation ends here.

[0044] The above is only the preferred embodiment of the present invention, and it is not intended to limit the present invention in any form; any ordinary technician in the industry can smoothly implement the present invention according to the illustrations in the specification and the above description; however, any minor changes, modifications and evolutions made by those skilled in the art within the scope of the technical solution of the present invention by using the technical content disclosed above are equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A nitrocellulose high-residue acid-discharging washing device, comprising a washing tank (101), characterized in that: A water inlet seat (102) is fixedly connected to the lower left side of the washing tank (101), a cotton board (103) is provided inside the washing tank (101), a transmission box (104) is fixedly connected to the upper part of the outer wall of the washing tank (101), a pump body (105) is fixedly connected to the left side of the transmission box (104), the bottom of the drainage port of the pump body (105) is fixedly connected to the top of the water inlet seat (102), a filter tank (106) is fixedly connected to the right side of the washing tank (101), an acid discharge seat (107) is fixedly connected to the bottom of the inner wall of the filter tank (106), the acid discharge pipe of the acid discharge seat (107) passes through the right side wall of the filter tank (106), a driving box (108) is fixedly connected to the top of the filter tank (106), a control console (109) is fixedly connected to the front side of the filter tank (106), and an ultrasonic generator (110) is fixedly connected to the bottom of the inner wall of the washing tank (101); A pushing mechanism (2) is provided inside the transmission box (104), and the pushing mechanism (2) comprises a first motor (201), and the bottom of the first motor (201) is fixedly connected to the top left side of the transmission box (104); a water supply mechanism (3) is provided inside the pump body (105), and the water supply mechanism (3) comprises a linkage shaft (304), and the rear end of the linkage shaft (304) is movably connected to the rear side of the inner wall of the pump body (105); a filtering mechanism (4) is provided on the inner wall of the drive box (108), and the filtering mechanism (4) comprises a second motor (401), and the rear side of the second motor (401) is fixedly connected to the front side of the drive box (108).

2. A nitrocellulose high-residue acid-discharging washing device according to claim 1, characterized in that: A transmission shaft (202) is fixedly connected to the middle of the bottom of the first motor (201); the bottom end of the transmission shaft (202) passes through the transmission box (104) and is fixedly connected to a first bevel gear (203); a second bevel gear (204) is meshingly connected below the first bevel gear (203); a movable shaft (205) is fixedly connected to the inner wall of the second bevel gear (204); the rear end of the movable shaft (205) is movably connected to the rear left side of the inner wall of the transmission box (104); and the front end of the movable shaft (205) passes through the front side wall of the transmission box (104).

3. A nitrocellulose high-residue acid-discharging washing device according to claim 2, characterized in that: The outer wall of the movable shaft (205) is located inside the transmission box (104) and is fixedly connected to driving track wheels (206) on both sides of the front and rear sides. The outer wall of the driving track wheel (206) is closely attached to a push track (207). The right side of the inner wall of the push track (207) is closely attached to a driven track wheel (208). The driven track wheel (208) is movably connected to the right side of the inner wall of the transmission box (104).

4. A nitrocellulose high-residue acid-discharging washing device according to claim 3, characterized in that: The outer wall of the pushing crawler (207) is fixedly connected with a holder (209), the outer shape of the holder (209) is in the shape of a square platform, the outer wall of the holder (209) is sleeved with a pushing frame (210), and the top of the cotton board (103) is fixedly connected to the middle of the bottom of the pushing frame (210).

5. The nitrocellulose high-residue acid-discharging washing device according to claim 2, characterized in that: The front end of the movable shaft (205) is fixedly connected to a driving pulley (301), the right side of the outer wall of the driving pulley (301) is closely attached to a linkage belt (302), and the left side of the inner wall of the linkage belt (302) is closely attached to a driven pulley (303).

6. A nitrocellulose high-residue acid-discharging washing device according to claim 5, characterized in that: The front end of the linkage shaft (304) passes through the front side wall of the pump body (105), the middle part of the rear side of the driven pulley (303) is fixedly connected to the front end of the linkage shaft (304), and the outer wall of the linkage shaft (304) is located inside the pump body (105) and is fixedly connected with an auger blade (305).

7. The nitrocellulose high-residue acid-discharging washing device according to claim 1, characterized in that: A driving worm (402) is fixedly connected to the middle of the rear side of the second motor (401), the rear end of the driving worm (402) is movably connected to the rear side of the inner wall of the driving box (108), and the left side of the outer wall of the driving worm (402) is meshedly connected to a driving worm wheel (403).

8. The nitrocellulose high-residue acid-discharging washing device according to claim 7, characterized in that: The inner wall of the driving worm gear (403) is fixedly connected to a rotating shaft (404), the top of the rotating shaft (404) is movably connected to the top of the inner wall of the driving box (108), the bottom of the rotating shaft (404) passes through the top of the filter tank (106) and is fixedly connected to a main gear (405), and the right side of the inner wall of the main gear (405) is meshedly connected to an internal gear (406).

9. A nitrocellulose high-residue acid-discharging washing device according to claim 8, characterized in that: The bottom of the internal gear (406) is fixedly connected to a rotating frame (407), the top of the rotating frame (407) is movably connected to the top of the inner wall of the filter tank (106), the bottom of the rotating frame (407) is movably connected to the top of the inner wall of the acid discharge seat (107), and the outer wall of the rotating frame (407) is clamped and fixed with a filter screen (408).

10. A washing method for a nitrocellulose high-residue-free acid-discharging washing device according to any one of claims 1 to 9, characterized in that: The steps include: S1: The cotton board (103) is mounted on the holder (209) on the upper right side of the pushing track (207) by means of the pushing frame (210), so that the cotton board (103) is placed inside the washing tank (101); S2: starting the ultrasonic generator (110) through the control console (109), so that the ultrasonic generator (110) uses the water in the washing tank (101) as a medium to perform acid removal washing on the nitrocellulose in the cotton board (103); S3: starting the pushing mechanism (2) through the control console (109), so that the pushing mechanism (2) drives the pushing frame (210) and the cotton board (103) to move to the left side; S4: starting the water supply mechanism (3) through the control console (109), so that the water supply mechanism (3) supplies clean water to the left side of the washing tank (101) through the water inlet seat (102), and discharges the acid water on the right side of the washing tank (101) through the acid discharge seat (107); S5: The filter mechanism (4) is started through the control console (109), so that the filter mechanism (4) drives the rotating frame (407) and the filter screen (408) to rotate within a limited position, so as to filter and collect the nitrocellulose in the acid water.

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