A wood powder processing device for corrugated paperboard production

Abstract

The utility model discloses a wood powder processing device is used in corrugated paperboard production, including processing box and screening box, the bottom below of processing box and screening box is provided with base, the below one side of processing box is fixedly connected with screening box, the top of processing box is fixedly connected with feeding hopper, the bottom of feeding hopper is provided with feeding twisting roller, the inside top of processing box is provided with crushing bin, the below of crushing bin is provided with the crushing chamber, the inside of crushing chamber is provided with the smashing mechanism, the feeding twisting roller that the utility model sets, cooperation crushing bin and smashing mechanism can carry out the pressure roll crushing of larger timber again, then carry out the smashing work, cooperation multilayer screening mechanism can obtain multiple different specifications of powder in one batch simultaneously, the collection of experimental raw material is convenient, improves the homogeneity of raw material, and then can reduce the discreteness of experimental data, and the smashing mechanism and crushing bin can share a set of driving mechanism, and the equipment complexity is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of wood flour processing equipment, and in particular to a wood flour processing device for corrugated cardboard production. Background Technology

[0002] Corrugated paper, as an important packaging material, is widely used in logistics, e-commerce, food, and other industries. However, with increasing market competition and stricter environmental requirements, traditional corrugated paper faces numerous challenges in terms of strength, cost, and environmental performance. Currently, reinforcement technologies for corrugated paper mainly focus on fiber modification and the addition of chemical additives, but these methods often suffer from high costs, poor environmental performance, or limited reinforcement effects. Wood flour, as a widely available, inexpensive, and renewable biomass material, has good fiber reinforcement potential, but its application in corrugated paper production still faces many technical bottlenecks, such as the compatibility of wood flour with pulp fibers, the uniformity of dispersion, and its impact on paper strength.

[0003] In research on the production of wood flour for corrugated cardboard, to achieve optimal strength, different grades of wood flour are typically added at different process stages to form a better cross-linked structure. However, existing wood flour processing equipment has several limitations: most traditional wood flour mills can only produce a single grade of wood flour, requiring multiple processing steps for multiple grades, resulting in low efficiency. Furthermore, the quality of different batches of wood flour may vary due to differences in variety and growth / storage time. Using different batches and grades of wood flour together in research results in high data dispersion, requiring more experiments for data aggregation, increasing experimental costs, and indicating room for further improvement. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a wood powder processing device for corrugated cardboard production, thereby solving the above-mentioned problem.

[0005] To achieve the above objectives, a wood flour processing device for corrugated cardboard production is provided, comprising a processing box and a screening box. A base is provided below the bottom of the processing box and the screening box. The lower side of the processing box is fixedly connected to the screening box. A feed hopper is fixedly connected above the processing box. A feed twisting roller is provided at the bottom of the feed hopper. A crushing chamber is provided at the top inside the processing box. A pulverizing chamber is provided below the crushing chamber. A pulverizing mechanism is provided inside the pulverizing chamber. The screening box is equipped with a multi-layer screening mechanism. A high-mesh hopper is located at the bottom of the screening box near the processing box. A medium-mesh hopper is located on the side of the screening box away from the processing box. A low-mesh hopper is located on the side of the screening box away from the high-mesh hopper. Processing return pipes are installed on the outer sides of both the medium-mesh and low-mesh hoppers. A tailings hopper is located at the bottom of the screening box away from the processing box, and a tailings return pipe is fixedly connected below the tailings hopper. Pneumatic negative pressure pumps are installed at the ends of both the processing return pipes and the tailings return pipes near the screening box. The air inlets of multiple pneumatic negative pressure pumps are fixedly connected to high-pressure nitrogen pipes.

[0006] According to the wood flour processing device for corrugated cardboard production, the feeding hinge roller is composed of two interlocking hinge rollers, and both ends of the two hinge rollers are provided with interlocking synchronous gears.

[0007] According to the wood flour processing device for corrugated cardboard production, a speed reducer is provided below the feed hopper at a position corresponding to the feed twisting roller. A motor is fixedly connected to the end of the speed reducer away from the feed hopper, and the output end of the motor is connected to the feed twisting roller through the speed reducer.

[0008] According to the wood flour processing device for corrugated cardboard production, the lower inner wall of the crushing chamber is provided with multiple crushing teeth, and a vertical crushing roller that cooperates with the crushing teeth is provided at the center of the inside of the crushing chamber.

[0009] According to the aforementioned wood flour processing device for corrugated cardboard production, the crushing mechanism includes a fixed grinding disc, a rotating grinding disc, a feed pipe, a receiving tray, a cleaner, and a discharge pipe. The rotating grinding disc is positioned above the fixed grinding disc, and the feed pipe is positioned above the rotating grinding disc, with its upper part connected to the bottom of the crushing chamber. The center of the upper part of the rotating grinding disc is fixedly connected to the bottom of the vertical crushing roller. The receiving tray is fixedly connected to the outer side of the fixed grinding disc, and a cleaner corresponding to the receiving tray is fixedly connected to the lower outer side of the rotating grinding disc. The discharge pipe is positioned below the side of the receiving tray near the screening box.

[0010] According to the aforementioned wood flour processing device for corrugated cardboard production, the multi-layer screening mechanism includes a central drive rod, an inner layer screen, a middle layer screen, an outer sleeve, a rotating partition, and a spiral frame. The inner layer screen is connected to the discharge pipe. Spiral frames are provided on the inner sides of the inner layer screen, the middle layer screen, and the outer sleeve. The outer side of the central drive rod is fixedly connected to the spiral frame through multiple support rods. Rotating partitions are fixedly connected at positions corresponding to the low-mesh hopper, the medium-mesh hopper, and the high-mesh hopper, respectively, of the inner layer screen, the middle layer screen, and the outer sleeve. The inner layer screen includes both low-mesh and medium-mesh screens, with the low-mesh screen located at the position corresponding to the low-mesh hopper. Multiple discharge ports are provided at positions corresponding to the tail hopper, the medium-mesh hopper, and the high-mesh hopper, respectively.

[0011] According to the wood flour processing device for corrugated cardboard production, the ends of the two processing return pipes away from the pneumatic negative pressure pump are fixedly connected to the bottom of the crushing chamber, and the end of the tail material return pipe away from the pneumatic negative pressure pump is fixedly connected to the top of the crushing chamber.

[0012] According to the aforementioned wood flour processing device for corrugated cardboard production, a geared motor is fixedly connected at the center of the end of the screening box away from the processing box, and the output end of the geared motor is connected to the central drive rod.

[0013] The above solution has at least one of the following beneficial effects: 1. This utility model is equipped with a feeding twisting roller, which, together with the crushing chamber and the pulverizing mechanism, can crush larger pieces of wood by pressing and crushing them before further pulverizing them. With the help of a multi-layer screening mechanism, multiple powders of different specifications can be obtained in one batch at the same time, which facilitates the collection of experimental raw materials, improves the uniformity of raw materials, and thus reduces the dispersion of experimental data. In addition, the pulverizing mechanism and the crushing chamber can share a set of drive mechanisms, which reduces the complexity of the equipment, reduces maintenance requirements, and enhances the practicality of the device.

[0014] 2. The crushing mechanism of this utility model is equipped with a receiving tray and a cleaner. By placing the cleaner on the rotating grinding disc, the material powder can be swept into the inlet of the discharge pipe by the movement of the cleaner when the grinding disc is rotating. When discharging, only the grinding disc needs to be rotated, and no additional power mechanism is required, which enhances the practicality of the device.

[0015] 3. This utility model is equipped with multiple return pipes, which, together with corresponding pneumatic negative pressure pumps, can use the negative pressure provided by nitrogen to send the material back into the processing box for further processing, thereby increasing the output of high-mesh fine powder and preventing large differences in the quantity of experimental materials collected in the same batch.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a left-side perspective structural diagram of a wood flour processing device for corrugated cardboard production according to this utility model; Figure 2 This is a three-dimensional structural diagram of the right side of a wood flour processing device for corrugated cardboard production according to this utility model; Figure 3 This is a schematic diagram of the internal structure of the processing box of this utility model; Figure 4 This is a schematic diagram of the internal structure of the screening box of this utility model.

[0018] Legend: 1. Base; 2. Processing box; 3. Feed hopper; 4. Feeding twisting roller; 5. Crushing chamber; 6. Grinding chamber; 7. Grinding disc crushing mechanism; 71. Fixed grinding disc; 72. Rotating grinding disc; 73. Feed pipe; 74. Receiving tray; 75. Sweeper; 76. Discharge pipe; 8. Screening box; 9. Multi-layer screening mechanism; 91. Central drive rod; 92. Inner layer screen; 93. Middle layer screen; 94. Outer sleeve; 95. Rotating partition; 96. Spiral frame; 10. Processing return pipe; 11. Tail material return pipe; 12. High-pressure nitrogen pipe; 13. Pneumatic negative pressure pump; 14. High mesh size hopper; 15. Medium mesh size hopper; 16. Low mesh size hopper. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of the present utility model. Preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present utility model. The drawings are all in a very simplified form and use non-precise proportions. They are only used to help to explain the embodiments of the present utility model in a convenient and clear way, and should not be construed as limiting the scope of protection of the present utility model.

[0020] Reference Figure 1-4This utility model provides a wood flour processing device for corrugated cardboard production, including a processing box 2 and a screening box 8. A base 1 is provided below the bottom of both the processing box 2 and the screening box 8. The lower side of the processing box 2 is fixedly connected to the screening box 8. A feed hopper 3 is fixedly connected to the top of the processing box 2. A feed twisting roller 4 is provided at the bottom of the feed hopper 3. The feed twisting roller 4 consists of two interlocking hinge rollers, and both ends of the two hinge rollers are provided with interlocking synchronous gears. A reducer is provided below the feed hopper 3 at a position corresponding to the feed twisting roller 4. The end of the reducer away from the feed hopper 3 is fixed. The machine is connected to a motor, and the output end of the motor is connected to the feed twisting roller 4 through a reducer. The upper part of the processing box 2 is equipped with a crushing chamber 5. Multiple crushing teeth are provided on the lower inner wall of the crushing chamber 5. A vertical crushing roller that cooperates with the crushing teeth is provided at the center of the crushing chamber 5. A crushing chamber 6 is provided below the crushing chamber 5. Larger pieces of wood can be crushed by pressing and crushing during feeding, and then crushed. With the help of the multi-layer screening mechanism 9, multiple powders of different specifications can be obtained in one batch at the same time, which is convenient for the collection of experimental raw materials, improves the uniformity of raw materials, and thus reduces the dispersion of experimental data. The crushing chamber 6 is equipped with a crushing mechanism 7, which includes a fixed grinding disc 71, a rotating grinding disc 72, a feed pipe 73, a receiving plate 74, a cleaner 75, and a discharge pipe 76. The rotating grinding disc 72 is positioned above the fixed grinding disc 71, and the feed pipe 73 is positioned above the rotating grinding disc 72, with the upper part of the feed pipe 73 connected to the bottom of the crushing chamber 5. The upper center of the rotating grinding disc 72 is fixedly connected to the bottom of the vertical crushing roller. The receiving plate 74 is fixedly connected to the outer side of the fixed grinding disc 71, and a receiving plate 75 is fixedly connected to the lower outer side of the rotating grinding disc 72. The material receiving tray 74 is equipped with a corresponding cleaner 75. The material receiving tray 74 is located on the side below the screening box 8 and the discharge pipe 76 is provided. The crushing mechanism 7 is equipped with a material receiving tray 74 and a cleaner 75. By placing the cleaner 75 on the rotating grinding disc 72, the material powder can be swept into the inlet of the discharge pipe 76 by the movement of the cleaner 75 when the rotating grinding disc 72 is rotating. When discharging, only the rotating grinding disc 72 needs to be rotated, and no additional power mechanism is required. Moreover, the crushing mechanism 7 and the crushing chamber 5 share a set of drive mechanism, which reduces the complexity of the equipment and reduces maintenance requirements. The screening box 8 is equipped with a multi-layer screening mechanism 9. A high-mesh material bin 14 is provided at the bottom of the screening box 8 near the processing box 2. A medium-mesh material bin 15 is provided at the bottom of the screening box 8 on the side of the high-mesh material bin 14 away from the processing box 2. A low-mesh material bin 16 is provided at the bottom of the screening box 8 on the side of the medium-mesh material bin 15 away from the high-mesh material bin 14. Processing return pipes 10 are provided on the outside of both the medium-mesh material bin 15 and the low-mesh material bin 16. A tail material bin is provided at the bottom of the screening box 8 away from the processing box 2. The multi-layer screening mechanism 9 includes a central drive rod 91, an inner screen 92, a middle screen 93, an outer sleeve 94, a rotating partition 95, and a spiral frame 96. The inner screen 92 is connected to the discharge pipe 76. Spiral frames 96 are provided on the inner sides of the inner screen 92, the middle screen 93, and the outer sleeve 94. The outer side of the central drive rod 91 is fixedly connected to the spiral frame 96 via multiple support rods. While providing support, the spiral frame 96 can also drive the powder to move through the protruding spiral ridges when the screen rotates, achieving the purpose of feeding. The screening box 8 is fixedly connected at the center of the end furthest from the processing box 2. It is equipped with a geared motor, and the output end of the geared motor is connected to the central drive rod 91. The inner screen 92, the middle screen 93 and the outer sleeve 94 are all fixedly connected with rotating partitions 95 at the positions corresponding to the low mesh number hopper 16, the medium mesh number hopper 15 and the high mesh number hopper 14. The inner screen 92 includes a low mesh number hopper and a medium mesh number hopper, and the position corresponding to the low mesh number hopper 16 is a low mesh number hopper. The inner screen 92, the middle screen 93 and the outer sleeve 94 are all provided with multiple discharge ports at the positions corresponding to the tail material hopper, the medium mesh number hopper 15 and the high mesh number hopper 14. A tailings return pipe 11 is fixedly connected below the tailings bin. Both the processing return pipe 10 and the tailings return pipe 11 are equipped with pneumatic negative pressure pumps 13 at the ends near the screening box 8. The air inlets of multiple pneumatic negative pressure pumps 13 are fixedly connected to high-pressure nitrogen pipes 12. The high-speed nitrogen released by compression can draw away the material in the corresponding area for reprocessing. The ends of the two processing return pipes 10 away from the pneumatic negative pressure pumps 13 are fixedly connected to the bottom of the crushing chamber 5. The end of the tailings return pipe 11 away from the pneumatic negative pressure pumps 13 is fixedly connected to the top of the crushing chamber 5, which facilitates further crushing. By using the negative pressure provided by nitrogen, the material is sent back to the processing box for reprocessing, thereby increasing the output of high-mesh fine powder and preventing large differences in the quantity of experimental materials collected in the same batch.

[0021] Working principle: This utility model is equipped with a feeding twisting roller 4, which, together with the crushing chamber 5 and the crushing mechanism 7, can crush larger pieces of wood during feeding and then perform crushing. With the help of the multi-layer screening mechanism 9, multiple powders of different specifications can be obtained simultaneously in one batch, which facilitates the collection of experimental raw materials, improves the uniformity of raw materials, and thus reduces the dispersion of experimental data. The crushing mechanism 7 is equipped with a receiving plate 74 and a cleaner 75. By placing the cleaner 75 on the rotating grinding disc 72, the movement of the cleaner 75 can sweep the powder into the inlet of the discharge pipe 76 when the rotating grinding disc 72 rotates. During discharge, only the rotating grinding disc 72 needs to be rotated, without the need for a separate power mechanism. Moreover, the crushing mechanism 7 and the crushing chamber 5 share a set of drive mechanism, which reduces the complexity of the equipment and reduces maintenance requirements.

[0022] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A wood flour processing device for corrugated cardboard production, comprising a processing box (2) and a screening box (8), characterized in that: A base (1) is provided below the bottom of the processing box (2) and the screening box (8). The lower side of the processing box (2) is fixedly connected to the screening box (8). A feed hopper (3) is fixedly connected above the processing box (2). A feed twisting roller (4) is provided at the bottom of the feed hopper (3). A crushing chamber (5) is provided above the interior of the processing box (2). A crushing chamber (6) is provided below the crushing chamber (5). A crushing mechanism (7) is provided inside the crushing chamber (6). The screening box (8) is equipped with a multi-layer screening mechanism (9). A high-mesh hopper (14) is located at the bottom of the screening box (8) near the processing box (2). A medium-mesh hopper (15) is located on the side of the screening box (8) away from the processing box (2) from the high-mesh hopper (14). A low-mesh hopper (16) is located on the side of the screening box (8) away from the high-mesh hopper (14) from the medium-mesh hopper (15). 5) Processing return pipes (10) are provided on the outside of both the low mesh size hopper (16). A tail material hopper is provided at the bottom of the screening box (8) away from the processing box (2), and a tail material return pipe (11) is fixedly connected below the tail material hopper. A pneumatic negative pressure pump (13) is provided at the end of both the processing return pipe (10) and the tail material return pipe (11) near the screening box (8). The air inlet of each of the multiple pneumatic negative pressure pumps (13) is fixedly connected to a high pressure nitrogen pipe (12).

2. The wood flour processing device for corrugated cardboard production according to claim 1, characterized in that, The feed twisting roller (4) consists of two interlocking hinge rollers, and both ends of the two hinge rollers are provided with interlocking synchronous gears.

3. The wood flour processing device for corrugated cardboard production according to claim 2, characterized in that, A speed reducer is provided at the position below the feed hopper (3) corresponding to the feed twisting roller (4). A motor is fixedly connected to the end of the speed reducer away from the feed hopper (3), and the output end of the motor is connected to the feed twisting roller (4) through the speed reducer.

4. The wood flour processing device for corrugated cardboard production according to claim 1, characterized in that, The inner wall of the crushing chamber (5) is provided with a plurality of crushing teeth, and a vertical crushing roller that cooperates with the crushing teeth is provided at the center of the crushing chamber (5).

5. The wood flour processing device for corrugated cardboard production according to claim 2, characterized in that, The crushing mechanism (7) includes a fixed grinding disc (71), a rotating grinding disc (72), a feed pipe (73), a receiving plate (74), a cleaner (75), and a discharge pipe (76). The rotating grinding disc (72) is arranged above the fixed grinding disc (71). The feed pipe (73) is arranged above the rotating grinding disc (72), and the upper part of the feed pipe (73) is connected to the bottom of the crushing chamber (5). The upper center of the rotating grinding disc (72) is fixedly connected to the bottom of the vertical crushing roller. The receiving plate (74) is fixedly connected to the outside of the fixed grinding disc (71). The cleaner (75) corresponding to the receiving plate (74) is fixedly connected to the lower outside of the rotating grinding disc (72). The discharge pipe (76) is arranged below the side of the receiving plate (74) near the screening box (8).

6. The wood flour processing device for corrugated cardboard production according to claim 5, characterized in that, The multi-layer screening mechanism (9) includes a central drive rod (91), an inner screen (92), a middle screen (93), an outer sleeve (94), a rotating partition (95), and a spiral frame (96). The inner screen (92) is connected to the discharge pipe (76). Spiral frames (96) are provided on the inner sides of the inner screen (92), the middle screen (93), and the outer sleeve (94). The outer side of the central drive rod (91) is fixedly connected to the spiral frame (96) via multiple support rods. The inner screen (92), the middle screen (93), and the outer sleeve (94) are all equipped with spiral frames (96). Rotating partitions (95) are fixedly connected to the positions corresponding to the low-mesh hopper (16), medium-mesh hopper (15), and high-mesh hopper (14) of the inner sleeve (93) and the outer sleeve (94). The inner screen (92) includes a low-mesh screen and a medium-mesh screen, and the position corresponding to the low-mesh hopper (16) is a low-mesh screen. Multiple discharge ports are opened at the positions corresponding to the tail hopper, medium-mesh hopper (15), and high-mesh hopper (14) of the inner screen (92), the medium screen (93), and the outer sleeve (94).

7. The wood flour processing device for corrugated cardboard production according to claim 1, characterized in that, The ends of the two processing return pipes (10) away from the pneumatic negative pressure pump (13) are fixedly connected to the bottom of the crushing chamber (5), and the end of the tail material return pipe (11) away from the pneumatic negative pressure pump (13) is fixedly connected to the top of the crushing chamber (5).

8. The wood flour processing device for corrugated cardboard production according to claim 6, characterized in that, A reduction motor is fixedly connected at the center of the end of the screening box (8) away from the processing box (2), and the output end of the reduction motor is connected to the central drive rod (91) for transmission.

Images