Drying and cleaning device for cellulose production

Abstract

The invention discloses a drying and cleaning device for cellulose production, which comprises a tank body for bearing and drying materials; the scraping plate is attached to the inner wall of the tank body, and the scraping plate moves to separate materials on the inner wall of the tank body; the driver indirectly drives the scraping plate to move in the vertical direction; the revolution assembly drives the scraping plate to do annular motion, and the revolution assembly is arranged at the telescopic end of the driver; and the swinging assembly drives the scraping plate to rotate along the horizontal axis. The device has the beneficial effects that the multiple scrapers are arranged at the top of the tank body, the scrapers can move in a certain space under the action of the hydraulic cylinder, the revolution assembly and the swing assembly, and the inner wall of the tank body can be cleaned while the scrapers move; in order to avoid the problem of unlimited winding during power connection, the revolution assembly is controlled to only rotate within a fixed number of turns, for example, the revolution assembly rotates forwards by one turn and then rotates backwards by one turn.

Description

Technical Field

[0001] The present invention relates to the technical field of cellulose production, and more specifically, to a drying and cleaning device for cellulose production. Background Art

[0002] Cellulose needs to be heat-steamed to form dry powder. Generally, a spray drying tower is selected. However, there are certain defects in the drying process of cellulose ether. Since the wet cellulose material has a certain viscosity, during the evaporation process, the cellulose is prone to adhere to the inner wall of the tank. The existing cleaning method is manually handled, and normal cleaning can only be carried out after the machine is stopped and cooled. This method will greatly consume manpower and material resources. Summary of the Invention

[0003] In view of the above defects, the present invention provides a drying and cleaning device for cellulose production to solve the above problems.

[0004] To achieve the above object, the present invention adopts the following technical solutions: A drying and cleaning device for cellulose production, comprising: A tank for carrying and drying materials; A scraper for separating the materials on the inner wall of the tank by moving; A driver for indirectly driving the scraper to move in the vertical direction; A revolution component for driving the scraper to perform a circular motion, and the revolution component is arranged at the telescopic end of the driver; A swing component for driving the scraper to rotate along the horizontal axis.

[0005] Further, the driver is a hydraulic cylinder. There are three hydraulic cylinders and their telescopic directions are vertical. The hydraulic cylinders are installed at the upper end of the tank, and a ring plate is installed at the telescopic end of the hydraulic cylinder. The ring plate is fixedly connected to the hydraulic cylinder.

[0006] When rotating forward, the direction of the scraper's revolution is forward, the scraper is in an inclined state, the upper end of the scraper is in the front state, and the lower end of the scraper is in the rear state; when rotating backward, the direction of the scraper's revolution is forward, which is opposite to the forward rotation direction. By controlling the swing component to work, the scraper is also in an inclined state, but the direction is exactly opposite to that during forward rotation. Through this operation, the materials adhering to the inner wall of the tank can be better removed.

[0007] Further, the revolution component includes a slewing bearing installed on the lower surface of the ring plate. A ring pipe is installed at the lower end of the slewing bearing. A rotary motor is installed on one side of the ring pipe. A first gear is installed at the rotary end of the rotary motor. A second toothed ring meshing with the first gear is installed on the lower surface of the ring plate.

[0008] Further, the swinging assembly includes a first bearing installed on the outer side of the annular tube. There are multiple first bearings, which are evenly arranged in a ring on the outer side of the annular tube. A connecting shaft is installed on the inner ring of the first bearing. One end of the connecting shaft extending out of the annular tube is installed with a bearing block. There is a T-shaped groove on one side of the bearing block. The scraper is located in the T-shaped groove, and the lower end of the T-shaped groove is sealed. The scraper is inserted into the T-shaped groove in a fork-mounted manner, which is convenient for later replacement and disassembly. One end of the connecting shaft extending into the annular tube is installed with a first rod, and the first rod is located above the connecting shaft. A second rod is installed at the position below the connecting shaft. There are multiple first rods and second rods, which are evenly arranged in a ring in the annular tube. A first steel wire rope is installed on the first rod, and the first steel wire rope is fixedly connected to multiple first rods. A second steel wire rope is installed on the second rod, and the second steel wire rope is fixedly connected to multiple second rods. A stepping motor is installed on the inner wall of the annular tube, and the driving end of the stepping motor is fixedly connected to one of the connecting shafts. When one of the connecting shafts rotates, the other connecting shafts are driven to rotate synchronously through the transmission of the first steel wire rope and the second steel wire rope.

[0009] Further, a support bearing is installed on the side wall of the annular tube. There are multiple support bearings, which are arranged in a ring. A rotating shaft is installed on the inner ring of the support bearing. One end of the rotating shaft is installed with a driven wheel meshing with the second toothed ring, and the other end of the rotating shaft is installed with an interference component. There are multiple interference components, which are arranged radially.

[0010] Further, the interference component is a horizontal rod.

[0011] Further, the interference component is an L-shaped rod.

[0012] Through the setting of the L-shaped rod, some of the materials thrown out by the centrifugal force can be intercepted. Further, the lower surface of the annular tube is an inclined surface. The height of the outer side of the lower surface of the annular tube is higher than that of the inner side. A conical protrusion is installed on the lower surface of the annular tube, and the conical protrusion is located near the inner side of the annular tube. A triangular prism-shaped protrusion is installed on the lower surface of the annular tube. The triangular prism-shaped protrusion gradually thickens from one end to the other end, and the thicker end of the triangular prism-shaped protrusion is connected to the conical protrusion.

[0013] Through the setting of the inclined surface, it is convenient for the materials scraped by the scraper to flow to the inner side of the annular tube. Through the setting of the conical protrusion, it is convenient for the materials to form drops and promote the falling of the materials. Through the setting of the triangular prism-shaped protrusion, the collection of the materials can be further promoted.

[0014] Further, the middle position of the scraper is in a vertical state, and the reciprocating swing range of the scraper is 40 degrees - 90 degrees.

[0015] Further, a feed pipe is provided on the tank body. A sprayer is installed at the lower end of the feed pipe. An air inlet duct is provided at the upper end of the tank body. A cleaning brush is installed on the inner side of the upper end of the tank body. The scraper can contact the cleaning brush, which can play a role in cleaning the scraper.

[0016] The beneficial effects of the present invention are as follows: A plurality of scraping plates are arranged at the top of the tank body. Through the action of the hydraulic cylinder, the revolution component and the swing component, the scraping plates can move in a certain space, and the inner wall of the tank body can be cleaned while drying, avoiding manual cleaning and reducing the loss of manpower and material resources. In order to avoid the problem of infinite winding of the power connection, the revolution component is controlled to rotate only within a fixed number of turns, for example, rotating one turn forward and then one turn backward. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the drying and cleaning device for cellulose production according to the present invention; Figure 2 is a schematic diagram of part A; Figure 3 is a schematic diagram of part B; Figure 4 is a partial cross-sectional schematic diagram of the tank body; Figure 5 is a schematic diagram of the overall tank body; Figure 6 is a longitudinal cross-sectional schematic diagram of the tank body; Figure 7 is a cross-sectional schematic diagram of the bearing block; Figure 8 is an enlarged schematic diagram of the self-rotating shaft; In the figure, 1, tank body; 2, scraping plate; 3, driver; 4, revolution component; 5, swing component; 31, hydraulic cylinder; 32, annular plate; 41, slewing bearing; 42, annular pipe; 43, rotating motor; 44, first gear; 431, second toothed ring; 51, first bearing; 52, connecting shaft; 45, bearing block; 46, T-shaped groove; 47, first rod; 48, second rod; 49, first steel wire rope; 401, second steel wire rope; 402, stepping motor; 421, support bearing; 422, self-rotating shaft; 423, driven wheel; 424, interference component; 4241, horizontal rod; 4242, L-shaped rod; 425, inclined surface; 426, conical protrusion; 427, triangular protrusion; 11, feed pipe; 12, sprayer; 13, air inlet duct; 14, cleaning brush. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention is made with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention, but the present invention can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0019] This application provides a drying and cleaning device for cellulose production. Please refer to Figures 1 - 8 : including; A tank body 1 for carrying and drying materials; A scraper 2 that moves to separate the materials on the inner wall of the tank body 1; A driver 3 that indirectly drives the scraper 2 to move in the vertical direction; A revolution component 4 that drives the scraper 2 to perform a circular motion. The revolution component 4 is arranged at the telescopic end of the driver 3; A swing component 5 that drives the scraper 2 to rotate around the horizontal axis.

[0020] Specifically, in actual application, the initial positions of the swing component 5 and the revolution component 4 are located at the top of the tank body 1. During cleaning, control the driver 3 to work to drive the revolution component 4, the swing component, and the scraper 2 to move downward as a whole. While the scraper 2 moves downward, control the revolution component 4 to rotate. The revolution component 4 drives multiple scrapers 2 to perform circular motion. In order to avoid the problem of infinite winding of the power connection, control the revolution component 4 to rotate only within a fixed number of turns, for example, rotate one turn forward and then one turn backward; When rotating forward, the direction of revolution of the scraper 2 is forward. The scraper 2 is in an inclined state, with the upper end of the scraper 2 in the forward state and the lower end of the scraper 2 in the backward state; When rotating backward, the direction of revolution of the scraper 2 is forward, which is opposite to the forward rotation direction. Control the swing component 5 to work, and the scraper 2 is also in an inclined state, but the direction is exactly opposite to that when rotating forward. Through this operation, the materials adhering to the inner wall of the tank body 1 can be better removed; After cleaning, control the driver 3 to reset, driving the components connected to it to reset synchronously.

[0021] This embodiment refers to Figure 1 and Figure 4 , the driver 3 is a hydraulic cylinder 31. There are three hydraulic cylinders 31 and their telescopic directions are vertical. The hydraulic cylinders 31 are installed at the upper end of the tank body 1, and a ring plate 32 is installed at the telescopic end of the hydraulic cylinder 31. The ring plate 32 is fixedly connected to the hydraulic cylinder 31.

[0022] Specifically, in actual application, setting three hydraulic cylinders 31 can enable the revolution component 4 and the swing component 5 to move stably in the vertical direction. By setting the ring plate 32, it can be better connected to the slewing bearing 41 and the annular pipe 42.

[0023] This embodiment refers to Figure 1 , Figure 2 and Figure 3, the revolution assembly 4 includes a slewing bearing 41 installed on the lower surface of the annular plate 32. The lower end of the slewing bearing 41 is installed with an annular pipe 42. One side of the annular pipe 42 is installed with a rotary motor 43. The rotating end of the rotary motor 43 is installed with a first gear 44. The lower surface of the annular plate 32 is installed with a second toothed ring 431 meshing with the first gear 44.

[0024] Specifically in practical applications, due to the function of the slewing bearing 41, the annular pipe 42 can rotate stably. The rotary motor 43 is fixedly connected to the annular pipe 42. The rotary motor 43 drives the first gear 44 to rotate. Through the meshing of the first gear 44 and the second toothed ring 431, the generated reaction force enables the annular pipe 42 to rotate. There are many types of slewing bearings 41, which have tensile properties themselves and can play a role in fixing the annular pipe 42 in the vertical direction.

[0025] This embodiment refers to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the swing assembly 5 includes a first bearing 51 installed on the outer side of the annular pipe 42. There are multiple first bearings 51 and they are evenly arranged in a ring on the outer side of the annular pipe 42. The inner ring of the first bearing 51 is installed with a connecting shaft 52. One end of the connecting shaft 52 extending out of the annular pipe 42 is installed with a bearing block 45. One side of the bearing block 45 is provided with a T-shaped groove 46. The scraper 2 is located in the T-shaped groove 46 and the lower end of the T-shaped groove 46 is sealed. One end of the connecting shaft 52 extending into the annular pipe 42 is installed with a first rod 47. The first rod 47 is located above the connecting shaft 52. A second rod 48 is installed at the position of the connecting shaft 52 facing downwards. There are multiple first rods 47 and second rods 48 and they are evenly arranged in a ring in the annular pipe 42. A first steel wire rope 49 is installed on the first rod 47 and the first steel wire rope 49 is fixedly connected to multiple first rods 47. A second steel wire rope 401 is installed on the second rod 48 and the second steel wire rope 401 is fixedly connected to multiple second rods 48. The inner wall of the annular pipe 42 is installed with a stepping motor 402. The driving end of the stepping motor 402 is fixedly connected to one of the connecting shafts 52. When one of the connecting shafts 52 rotates, the other connecting shafts 52 are driven to rotate synchronously through the transmission of the first steel wire rope 49 and the second steel wire rope 401.

[0026] Specifically in practical applications, controlling the rotation of the stepping motor 402 can drive one of the connecting shafts 52 to rotate. The other end of the connecting shaft 52 drives the scraper 2 to rotate. The angle of the scraper 2 can be adjusted according to the actual situation. Due to the function of the first bearing 51, the connecting shaft 52 can rotate stably, greatly reducing the friction between the connecting shaft 52 and the annular pipe 42. The scraper 2 is inserted into the T-shaped groove 46 in a fork-mounted manner, which is convenient for later replacement and disassembly; When one of the connecting shafts 52 rotates, the angle of rotation of the connecting shaft 52 can be precisely controlled through the actions of the first rod 47 and the second rod 48. Through the settings of the first steel wire rope 49 and the second steel wire rope 401, the elastic error is reduced to ensure that the overall 52 can simultaneously utilize the bendable characteristics of the steel wire rope to connect multiple first rods 47 in series, enabling synchronous adjustment of the angle of the scraper 2; To avoid metal fatigue caused by repeated bending of the steel wire rope, the connection method between the steel wire rope and the first rod 47 can be changed to a hinge connection.

[0027] This embodiment refers to Figure 1 、 Figure 3 and Figure 8 On the side wall of the annular pipe 42, support bearings 421 are installed. There are multiple support bearings 421 arranged in a ring. An auto-rotating shaft 422 is installed on the inner ring of the support bearing 421. One end of the auto-rotating shaft 422 is installed with a driven wheel 423 that meshes with the second toothed ring 431, and the other end of the auto-rotating shaft 422 is installed with interference components 424. There are multiple interference components 424 arranged radially.

[0028] Specifically in actual application, when the annular pipe 42 rotates, it drives the driven wheel 423 to move relative to the second toothed ring 431. The driven wheel 423 can rotate around its own axis while revolving. The driven wheel 423 drives the auto-rotating shaft 422 and the interference components 424 to rotate through the auto-rotating shaft 422. Some of the materials scraped by the scraper 2 will fall onto the interference components 424. Through the rotation of the interference components 424, the materials can be further broken up, which is beneficial to the evaporation of moisture and improves the drying efficiency; setting more auto-rotating shafts 422 can cover a larger area and improve the breaking-up efficiency.

[0029] This embodiment refers to Figure 3 and Figure 8 The interference component 424 is a horizontal rod 4241.

[0030] Specifically in actual application, the materials can be broken up through the setting of the horizontal rod 4241.

[0031] This embodiment refers to Figure Figure 3 and Figure 8 The interference component 424 is an L-shaped rod 4242.

[0032] Specifically in actual application, due to the centrifugal force generated when the annular pipe 42 rotates, the scraped materials will be flung towards the wall of the tank body 1. Through the setting of the L-shaped rod 4242, some of the materials flung out due to the centrifugal force can be intercepted.

[0033] This embodiment refers to Figure 1 、 Figure 2 、 Figure 3 and Figure 4, the lower surface of the annular pipe 42 is an inclined surface 425, the height of the outer side of the lower surface of the annular pipe 42 is higher than that of the inner side, a conical protrusion 426 is installed on the lower surface of the annular pipe 42, the conical protrusion 426 is located at a position close to the inner side of the annular pipe 42, a triangular prism-shaped protrusion 427 is installed on the lower surface of the annular pipe 42, the triangular prism-shaped protrusion 427 gradually thickens from one end to the other end, and the thicker end of the triangular prism-shaped protrusion 427 is connected to the conical protrusion 426.

[0034] Specifically in practical applications, through the setting of the inclined surface 425, it is convenient for the materials scraped by the scraper 2 to flow to the inner side of the annular pipe 42. Through the setting of the conical protrusion 426, it is convenient for the materials to form drops and promote the falling of the materials. Through the setting of the triangular prism-shaped protrusion 427, the gathering of the materials can be further promoted.

[0035] This embodiment refers to Figure 1 , Figure 2 and Figure 3 , the middle position of the scraper 2 is in a vertical state, and the reciprocating swing range of the scraper 2 is 40 degrees - 90 degrees.

[0036] Specifically in practical applications, the rotation of the stepper motor 402 can be controlled to adjust the inclination angle of the scraper 2. When the scraper 2 is inclined, it can promote the falling of the materials. When the scraper 2 is in a vertical state, the scraping area is the largest at this time, but the materials can only fall under the action of gravity. By setting the cover plate 2 at different angles, a balance can be achieved between the scraping area size and the falling rate.

[0037] This embodiment refers to Figure 1 , Figure 5 and Figure 6 , a feed pipe 11 is provided on the tank body 1, a sprayer 12 is installed at the lower end of the feed pipe 11, an air inlet duct 13 is provided at the upper end of the tank body 1, and a cleaning brush 14 is installed on the inner side of the upper end of the tank body 1.

[0038] Specifically in practical applications, through the function of the feed pipe 11, the external liquid materials can be transported to the sprayer 12. Through the function of the sprayer 12, the materials can be sprayed. The air inlet duct 13 transports the external hot air into the tank body 1 for drying operations. The scraper 2 can contact the cleaning brush 14, which can play a role in cleaning the scraper 2. Injecting detergent into the tank body 1 can promote the cleaning effect of the tank body 1 and the scraper 2; the electrical appliances in this application are electrically connected to an external controller.

Claims

1. A drying and cleaning device for cellulose production, characterized in that: include; A tank body (1) for carrying and drying materials; A scraper (2), the scraper (2) is in contact with the inner wall of the tank body (1), and the scraper (2) moves to separate the material on the inner wall of the tank body (1); A driver (3) indirectly drives the scraper (2) to move in a vertical direction; A revolution assembly (4) drives the scraper (2) to perform circular motion, and the revolution assembly (4) is arranged at the telescopic end of the driver (3); The swing assembly (5) drives the scraper (2) to rotate along the horizontal axis.

2. The drying and cleaning device for cellulose production according to claim 1, characterized in that: The driver (3) is a hydraulic cylinder (31). Three hydraulic cylinders (31) are provided and the telescopic direction is vertical. The hydraulic cylinder (31) is installed at the upper end of the tank body (1). An annular plate (32) is installed at the telescopic end of the hydraulic cylinder (31). The annular plate (32) is fixedly connected to the hydraulic cylinder (31).

3. The drying and cleaning device for cellulose production according to claim 2, characterized in that: The revolution assembly (4) comprises a slewing bearing (41) mounted on the lower surface of the annular plate (32); an annular tube (42) is mounted on the lower end of the slewing bearing (41); a rotating motor (43) is mounted on one side of the annular tube (42); a first gear (44) is mounted on the rotating end of the rotating motor (43); and a second gear ring (431) meshing with the first gear (44) is mounted on the lower surface of the annular plate (32).

4. The drying and cleaning device for cellulose production according to claim 3, characterized in that: The swing assembly (5) comprises a first bearing (51) mounted on the outside of the annular tube (42). The first bearing (51) is provided with a plurality of first bearings (51) which are evenly arranged in an annular pattern on the outside of the annular tube (42). A connecting shaft (52) is mounted on the inner ring of the first bearing (51). A bearing block (45) is mounted on one end of the connecting shaft (52) extending out of the annular tube (42). A T-shaped groove (46) is provided on one side of the bearing block (45). The scraper (2) is located in the T-shaped groove (46). The lower end of the T-shaped groove (46) is sealed. A first rod (47) is mounted on one end of the connecting shaft (52) extending into the annular tube (42). The first rod (47) is located at a position where the connecting shaft (52) faces upward. A second rod (48) is mounted at a position where the connecting shaft (52) faces downward. A plurality of first rods (47) and second rods (48) are provided and are evenly arranged in an annular shape in the annular tube (42); a first steel wire rope (49) is installed on the first rod (47), and the first steel wire rope (49) is fixedly connected to the plurality of first rods (47); a second steel wire rope (401) is installed on the second rod (48), and the second steel wire rope (401) is fixedly connected to the plurality of second rods (48); a stepping motor (402) is installed on the inner wall of the annular tube (42); a driving end of the stepping motor (402) is fixedly connected to one of the connecting shafts (52); when one of the connecting shafts (52) rotates, the transmission of the first steel wire rope (49) and the second steel wire rope (401) drives the other connecting shafts (52) to rotate synchronously.

5. The drying and cleaning device for cellulose production according to claim 4, characterized in that: A support bearing (421) is installed on the side wall of the annular tube (42), a plurality of support bearings (421) are provided and arranged in an annular shape, a rotation shaft (422) is installed on the inner ring of the support bearing (421), a driven wheel (423) meshing with the second gear ring (431) is installed on one end of the rotation shaft (422), and an interference component (424) is installed on the other end of the rotation shaft (422), and a plurality of interference components (424) are provided and arranged in a radial shape.

6. The drying and cleaning device for cellulose production according to claim 5, characterized in that: The interference component (424) is a horizontal rod (4241).

7. The drying and cleaning device for cellulose production according to claim 5, characterized in that: The interference component (424) is an L-shaped rod (4242).

8. The drying and cleaning device for cellulose production according to claim 6 or 7, characterized in that: The lower surface of the annular tube (42) is an inclined surface (425), the height of the outer side of the lower surface of the annular tube (42) is higher than the height of the inner side, a conical protrusion (426) is installed on the lower surface of the annular tube (42), and the conical protrusion (426) is located near the inner side of the annular tube (42). A triangular prism protrusion (427) is installed on the lower surface of the annular tube (42), and the triangular prism protrusion (427) gradually thickens from one end to the other end, and the thicker end of the triangular prism protrusion (427) is connected to the conical protrusion (426).

9. The drying and cleaning device for cellulose production according to claim 8, characterized in that: The scraper (2) is in a vertical position at the center, and the scraper (2) can reciprocate in a range of 40 degrees to 90 degrees.

10. The drying and cleaning device for cellulose production according to any one of claims 1 to 4, characterized in that: The tank body (1) is provided with a feed pipe (11), a sprayer (12) is installed at the lower end of the feed pipe (11), an air inlet duct (13) is installed at the upper end of the tank body (1), and a cleaning brush (14) is installed on the inner side of the upper end of the tank body (1).

Images