Slurry circulation system

Abstract

The present invention discloses a slurry circulation system, including a slurry tank and a propulsion device. The slurry tank is used for containing pulp, and a slurry circuit is disposed inside the slurry tank; the propulsion device is arranged in the slurry circuit, and the propulsion device is used for driving the pulp to circulate and flow along the slurry circuit. By using the propulsion device to drive the pulp to continuously circulate and flow in the slurry circuit, the pulp is always in a flowing state, ensuring that the problem of pulp sedimentation does not occur, improving the uniformity of the pulp input into the equipment, and guaranteeing the quality of the paper-plastic products.

Description

Technical Field

[0001] The present invention relates to the field of automated equipment for paper-plastic products, and particularly to a slurry circulation system. Background Art

[0002] Paper-plastic products require pulp for molding during processing. The pulp is generally stored in a box, and then pipelines and pumps are used to inject the pulp into the processing equipment. A large amount of pulp is stored in the box to provide long-term working use. For example, the invention patent with the application number CN202011319606.3 discloses a pulp molding machine, which includes a pulp tank for storing pulp. In the above prior art, when the pulp in the pulp tank is not used for a long time, the pulp will settle, resulting in the problem of sedimentation, and the uniformity of the pulp input into the molding machine is insufficient, affecting the product quality. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a slurry circulation system, which can avoid the sedimentation of pulp and improve the product quality.

[0004] According to an embodiment of the first aspect of the present invention, the slurry circulation system includes a slurry box body and a propulsion device. The slurry box body is used for containing pulp, and a slurry circuit is provided inside the slurry box body; the propulsion device is arranged in the slurry circuit, and the propulsion device is used to drive the pulp to circulate along the slurry circuit.

[0005] According to the slurry circulation system of the embodiment of the present invention, it has at least the following beneficial effects: the propulsion device is used to drive the pulp to continuously circulate in the slurry circuit, so that the pulp is always in a flowing state, ensuring that the problem of pulp sedimentation does not occur, improving the uniformity of the pulp input into the equipment, and ensuring the quality of paper-plastic products.

[0006] According to some embodiments of the present invention, a partition is arranged inside the slurry box body. Both ends of the partition are spaced from the slurry box body, and the side wall of the slurry box body and the partition construct the slurry circuit.

[0007] According to some embodiments of the present invention, a plurality of connecting rods are arranged between one of the side walls of the partition and the slurry box body.

[0008] According to some embodiments of the present invention, the propulsion device includes a fairing, a rotating shaft, and guide vanes. The fairing is cylindrical, with both ends of the fairing penetrating through. One end of the fairing is the liquid inlet end, and the other end is the liquid outlet end. The fairing is disposed inside the slurry circuit; one end of the rotating shaft extends into the fairing from the liquid inlet end, and the other end is connected to a driving mechanism; the guide vanes are fixedly connected to the end of the rotating shaft extending into the fairing; wherein, the guide vanes rotate to drive the pulp to flow from the liquid inlet end to the liquid outlet end.

[0009] According to some embodiments of the present invention, the guide vanes are axially provided with through holes, the rotating shaft is inserted into the through holes, and a flat key is provided between the rotating shaft and the through holes.

[0010] According to some embodiments of the present invention, two fixing plates are respectively and fixedly connected to both sides of the fairing, and the fixing plates are fixedly connected to the bottom surface of the slurry circuit.

[0011] According to some embodiments of the present invention, a fixed sleeve is sleeved outside the rotating shaft, the rotating shaft can pivot inside the fixed sleeve, and a bearing is provided between the rotating shaft and the fixed sleeve.

[0012] According to some embodiments of the present invention, end face water seals are provided between both ends of the fixed sleeve and the rotating shaft, and the end face water seals are used to seal the gap between the fixed sleeve and the rotating shaft.

[0013] According to some embodiments of the present invention, slurry inlet holes are provided on the surface of the fairing, and the slurry inlet holes are located above the rotating shaft.

[0014] According to some embodiments of the present invention, the driving mechanism includes a motor, a driving pulley, a driven pulley, and a belt. The belt is wound between the driving pulley and the driven pulley to enable the driving pulley and the driven pulley to be in transmission cooperation. The motor is fixedly connected to the axis of the driving pulley to drive the driving pulley to rotate, and the driven pulley is fixedly connected to the rotating shaft to drive the rotating shaft to rotate.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following further describes the present invention in conjunction with the drawings and embodiments, where:

[0017] Figure 1 is a schematic diagram of the slurry circulation system according to an embodiment of the present invention;

[0018] Figure 2Schematic diagram of the propulsion device of the slurry circulation system according to an embodiment of the present invention;

[0019] Figure 3 Schematic diagram of the rotating shaft of the slurry circulation system according to an embodiment of the present invention;

[0020] Figure 4 Schematic diagram of the driving mechanism of the slurry circulation system according to an embodiment of the present invention.

[0021] 100, slurry tank; 110, slurry circuit; 120, partition board; 121, connecting rod; 200, propulsion device; 210, guide cover; 211, liquid inlet end; 212, liquid outlet end; 213, fixing plate; 214, slurry inlet hole; 220, rotating shaft; 221, fixed sleeve; 222, end face water seal; 230, driving mechanism; 231, motor; 232, driving wheel; 233, driven wheel; 234, belt; 240, guide vane; 241, through hole; 242, flat key; Detailed implementation manners

[0022] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation of the present invention.

[0023] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0024] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0026] Refer to Figures 1 to 4, the slurry circulation system of the embodiment of the present invention includes a slurry box 100 and a propulsion device 200. The slurry box 100 is used to hold pulp, and a slurry circuit 110 is provided inside the slurry box 100; the propulsion device 200 is arranged in the slurry circuit 110, and the propulsion device 200 is used to drive the pulp to circulate along the slurry circuit 110.

[0027] During actual use, the slurry box 100 holds pulp, and the pulp is placed inside the slurry circuit 110. The propulsion device 200 is used to drive the pulp to continuously circulate along Figure 1 the arrow direction in the slurry circuit 110, so that the pulp is always in a flowing state, ensuring that the problem of pulp sedimentation does not occur, improving the uniformity of the pulp input into the equipment, and ensuring the quality of paper-plastic products.

[0028] Among them, a partition 120 is provided inside the slurry box 100. Both ends of the partition 120 are spaced from the slurry box 100, and the side wall of the slurry box 100 and the partition 120 construct the slurry circuit 110. Both ends of the partition 120 are spaced from the side wall of the slurry box 100, so that the two internal spaces of the slurry box 100 separated by the partition 120 are connected, and a slurry circuit 110 for pulp circulation can be formed. Specifically, the entire propulsion device 200 is arranged on one side of the partition 120, and the propulsion device 200 drives the pulp to flow in a fixed direction, prompting the pulp to continuously flow in the slurry circuit 110.

[0029] During the flow of the pulp, pressure will be generated on the partition 120, causing the partition 120 to shake. Long-term shaking is likely to cause the partition 120 to break or bend, affecting the smoothness of pulp flow. For this reason, a plurality of connecting rods 121 are provided between the partition 120 and one of the side walls of the slurry box 100. The plurality of connecting rods 121 are connected between the side wall of the slurry box 100 and the partition 120 to strengthen the installation strength of the partition 120 in the slurry box 100 and extend the service life.

[0030] In some embodiments, the propulsion device 200 includes a guide cover 210, a rotating shaft 220, and guide vanes 240. The guide cover 210 is cylindrical, and both ends of the guide cover 210 are penetrated. One end of the guide cover 210 is a liquid inlet end 211, and the other end is a liquid outlet end 212. The guide cover 210 is placed inside the slurry circuit 110; one end of the rotating shaft 220 extends into the guide cover 210 from the liquid inlet end 211, and the other end is connected to a driving mechanism 230; the guide vanes 240 are fixedly connected to the end of the rotating shaft 220 extending into the guide cover 210; among them, the guide vanes 240 rotate to drive the pulp to flow from the liquid inlet end 211 to the liquid outlet end 212.

[0031] In actual use, the propulsion device 200 is immersed in the pulp circuit 110 of the pulp tank 100. The drive mechanism 230 drives the rotation of the rotating shaft 220, and then the rotating shaft 220 drives the rotation of the guide vane 240, thereby driving the pulp to flow into the guide cover 210 from the liquid inlet end 211 and along the guide cover 210 from the liquid outlet end 212 along Figure 2 the arrow B shown in the figure and discharging it actively to guide the pulp to flow in a specific direction. Among them, in order to cooperate with the flowing pulp, the side wall of the pulp tank 100 can be arc-shaped to provide a guiding effect, or the cross-section of the pulp tank 100 is rectangular with rounded corners at the four corners to guide the pulp flow.

[0032] Specifically, in order to ensure a fixed connection between the guide vane 240 and the rotation and prevent slipping during rotation, the guide vane 240 is axially provided with a through hole 241, the rotating shaft 220 is inserted into the through hole 241, and a flat key 242 is provided between the rotating shaft 220 and the through hole 241.

[0033] It should be noted that two fixing plates 213 are respectively fixedly connected to both sides of the guide cover 210, and the fixing plates 213 are fixedly connected to the bottom surface of the pulp circuit 110. Since the guide cover 210 is cylindrical, it is not stable to fix the guide cover 210 to the pulp tank 100 through the side surface. Therefore, the fixing area can be enlarged through the fixing plates 213 on both sides, thereby improving the stability of the guide cover 210 in the entire pulp tank 100 and preventing the guide cover 210 from moving in the pulp.

[0034] When the guide cover 210 is completely immersed in the pulp, in order to increase the amount of guided pulp, refer to Figure 2 the figure, and slurry inlet holes 214 are formed on the surface of the guide cover 210. The slurry inlet holes 214 are located above the rotating shaft 220. The slurry inlet holes 214 cooperate with the liquid inlet end 211 to improve the suction of the pulp and promote the pulp to flow along Figure 2 the arrow A shown in the figure.

[0035] In order to prevent direct contact between the pulp and the rotating shaft 220 and ensure that the rotating shaft 220 does not rust, refer to Figure 3 the figure, a fixed sleeve 221 is sleeved outside the rotating shaft 220, the rotating shaft 220 can pivot within the fixed sleeve 221, and a bearing is provided between the rotating shaft 220 and the fixed sleeve 221. Among them, in order to further improve the sealing performance, end face water seals 222 are provided between both ends of the fixed sleeve 221 and the rotating shaft 220, and the end face water seals 222 are used to seal the gap between the fixed sleeve 221 and the rotating shaft 220.

[0036] In the embodiment of the present invention, refer to Figure 2 and Figure 4, the driving mechanism 230 includes a motor 231, a driving wheel 232, a driven wheel 233 and a belt 234. The belt 234 is wound between the driving wheel 232 and the driven wheel 233 so that the driving wheel 232 and the driven wheel 233 are in transmission cooperation. The motor 231 and the driving wheel 232 are fixedly connected at the axes to drive the driving wheel 232 to rotate, and the driven wheel 233 and the rotating shaft 220 are fixedly connected to drive the rotating shaft 220 to rotate.

[0037] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A slurry circulation system, characterized in that, Comprising: A slurry tank (100) for containing pulp, and a slurry circuit (110) is provided inside the slurry tank (100); A propulsion device (200) is arranged in the slurry circuit (110), and the propulsion device (200) is used to drive the pulp to circulate along the slurry circuit (110); The propulsion device (200) includes: A fairing (210), which is cylindrical, both ends of the fairing (210) are provided with through holes, one end of the fairing (210) is a liquid inlet end (211), and the other end is a liquid outlet end (212), and the fairing (210) is arranged inside the slurry circuit (110); A rotating shaft (220), one end of which extends into the fairing (210) from the liquid inlet end (211), and the other end is connected with a driving mechanism (230); A guide vane (240) is fixedly connected to the end of the rotating shaft (220) extending into the fairing (210); Wherein, the guide vane (240) rotates to drive the pulp to flow from the liquid inlet end (211) to the liquid outlet end (212); The guide vane (240) is axially provided with a through hole (241), the rotating shaft (220) is inserted into the through hole (241), and a flat key (242) is arranged between the rotating shaft (220) and the through hole (241); Two fixing plates (213) are respectively fixedly connected to both sides of the fairing (210), and the fixing plates (213) are fixedly connected to the bottom surface of the slurry circuit (110); The driving mechanism (230) includes a motor (231), a driving wheel (232), a driven wheel (233) and a belt (234), the belt (234) is wound between the driving wheel (232) and the driven wheel (233) to make the driving wheel (232) and the driven wheel (233) be in transmission cooperation, the motor (231) is fixedly connected to the axis of the driving wheel (232) to drive the driving wheel (232) to rotate, and the driven wheel (233) is fixedly connected to the rotating shaft (220) to drive the rotating shaft (220) to rotate.

2. The slurry circulation system according to claim 1, characterized in that, A partition (120) is arranged inside the slurry tank (100), both ends of the partition (120) are spaced from the slurry tank (100), and the side wall of the slurry tank (100) and the partition (120) construct the slurry circuit (110).

3. The slurry circulation system according to claim 2, wherein, A plurality of connecting rods (121) are arranged between the partition (120) and one of the side walls of the slurry tank (100).

4. The slurry circulation system according to claim 1, wherein, A fixed sleeve (221) is sleeved outside the rotating shaft (220), the rotating shaft (220) can pivot inside the fixed sleeve (221), and a bearing is arranged between the rotating shaft (220) and the fixed sleeve (221).

5. The slurry circulation system according to claim 4, characterized in that, End face water seals (222) are arranged between both ends of the fixed sleeve (221) and the rotating shaft (220), and the end face water seals (222) are used to seal the gap between the fixed sleeve (221) and the rotating shaft (220).

6. The slurry circulation system according to claim 1, characterized in that, The surface of the fairing (210) is provided with a slurry inlet hole (214), and the slurry inlet hole (214) is located above the rotating shaft (220).

Images