Pulping system
By introducing a cutting device into the pulp system, the slurry plate is cut in half, which solves the problem of equipment failure caused by directly hitting the rotor by slurry plate, and reduces maintenance and repair costs.
Patent Information
- Application Number
- CN202420587786.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-03-25
AI Technical Summary
During the use of the pulp machine, the finished pulp plate directly hits the rotor, resulting in equipment failures, maintenance costs and maintenance costs.
A pulverizing system is designed, including a pulverizer body, a cutting device and a conveyor. The feeding device is located at the inner wall of the pulper body close to the feed port, and can cut the pulp plate in half to make it fall into a part with a high liquid level, reducing the chance of directly hitting the rotor.
By cutting the slurry plate, the chance of the slurry plate hitting the rotor directly and causing equipment failure is reduced, and the maintenance cost and repair cost of the slurry are reduced.
Smart Images
Figure CN222758619U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of papermaking, in particular to a pulping system. Background Art
[0002] Pulper is one of the most commonly used pulping equipment in the pulp and paper industry, mainly used to pulp boards, waste books, waste cartons, etc. In the process of papermaking, the pulper uses the high-speed rotation of the rotor to drive the rotation of the water flow, thereby achieving the purpose of forming pulp from waste paper.
[0003] At present, in the process of using the pulper, the finished pulp board is fed by the chain plate and the whole pulp board is put into the pulper as a whole. The large and heavy pulp board is directly put into the pulper, and the liquid surface of the pulper becomes spiral under the action of centrifugal force, which will expose the rotor. At this time, the pulp board will directly hit the rotor, loosening or even damaging the rotor fixing bolts, and causing the screen plate and lining to crack. Summary of the invention
[0004] The utility model aims to provide a pulping system to reduce the probability of equipment failure caused by a pulp plate directly hitting a rotor, thereby reducing the maintenance cost and repair cost of the pulper body.
[0005] The utility model provides a pulping system, comprising:
[0006] A pulper body, a material opening device and a conveyor, wherein the pulper body has an inner cavity, the top of the pulper body has a feed port connected to the inner cavity, the discharge port of the conveyor is located above the feed port, and the material opening device is arranged on the inner wall of the inner cavity near the feed port.
[0007] Compared with the prior art, the pulping system provided by the utility model includes a pulper body, a material opening device and a conveyor. The pulper body has an inner cavity, and the top of the pulper body has a feed port connected to the inner cavity. Among them, the discharge port of the conveyor is located above the feed port, and the material opening device is arranged at a position of the inner wall of the inner cavity close to the feed port. Based on this, during the use of the pulper body, the liquid in the pulper body has a tendency to be thrown outward under the action of centrifugal force, resulting in a state where the liquid level is low in the middle and high around, and the rotor located at the center of the vortex is exposed. At this time, the pulp plate is thrown above the feed port of the pulper body along the discharge port of the conveyor. The material opening device arranged at a position of the inner wall of the inner cavity close to the feed port can cut the pulp plate into two halves, and the cut pulp plate falls into the position with a high liquid level, thereby reducing the probability of the pulp plate directly hitting the rotor and causing equipment failure, and reducing the maintenance cost and repair cost of the pulper body. Moreover, since the pulp board has reduced its own weight after being cut by the cutting device, even in the extremely small probability that the cut pulp board hits the rotor, the force exerted by the cut pulp board on the rotor will cause less damage to the rotor, which still reduces the maintenance cost and repair cost of the pulper to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0009] Figure 1 A schematic structural diagram of a pulping system provided in an embodiment of the utility model is shown. DETAILED DESCRIPTION
[0010] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0011] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0012] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The meaning of "several" is one or more, unless otherwise clearly and specifically defined.
[0013] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0014] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0015] Pulper is one of the most commonly used pulping equipment in the pulp and paper industry, mainly used to break up pulp boards, waste books, waste cartons, etc. In the process of papermaking, the pulper uses the high-speed rotation of the rotor to drive the rotation of the water flow, thereby achieving the purpose of turning waste paper into pulp. At present, in the process of using the pulper, the finished pulp board is loaded with a chain plate, and the whole pulp board is put into the pulper as a whole. The large and heavy pulp board is directly put into the pulper. The liquid surface of the pulper becomes spiral under the action of centrifugal force, and the rotor will be exposed. At this time, the pulp board put in will directly hit the rotor, loosening or even damaging the rotor fixing bolts, and causing the screen plate and lining to crack.
[0016] In view of the above problems, the utility model provides a pulping system to reduce the probability of equipment failure caused by the pulp plate directly hitting the rotor, thereby reducing the maintenance cost and repair cost of the pulper body. Figure 1 The schematic diagram of the structure of the pulping system provided by the embodiment of the utility model is shown. Figure 1As shown, the pulping system includes: a pulper body 100, a cutting device 200 and a conveyor 300. The pulper body 100 has an inner cavity, and the top of the pulper body 100 has a feed port connected to the inner cavity, the discharge port of the conveyor 300 is located above the feed port, and the cutting device 200 is arranged on the inner wall of the inner cavity near the feed port.
[0017] It is understandable that during the use of the pulper body 100, the liquid in the pulper body 100 has a tendency to be thrown outward under the action of centrifugal force, resulting in the liquid level being low in the middle and high around, and exposing the rotor located at the center of the vortex. At this time, the pulp sheet is thrown along the discharge port of the conveyor 300 to the top of the feed port of the pulper body 100, and the cutting device 200 provided on the inner wall of the inner cavity near the feed port can cut the pulp sheet into two halves, and the cut pulp sheet falls into the part with high liquid level, thereby reducing the probability of the pulp sheet directly hitting the rotor and causing equipment failure, and reducing the maintenance cost and repair cost of the pulper body 100. In addition, since the pulp sheet has reduced its own weight after being cut by the cutting device 200, even if the cut pulp sheet hits the rotor under extremely small probability, the force exerted by the cut pulp sheet on the rotor will cause less damage to the rotor, which still reduces the maintenance cost and repair cost of the pulper body 100 to a certain extent.
[0018] In an alternative approach, Figure 1 As shown, the pulping system provided by the utility model further includes a stress dispersion structure 400 arranged on the outer side wall of the pulper body 100 , and the opening device 200 passes through the inner side wall of the pulper body 100 and is connected to the stress dispersion structure 400 .
[0019] It can be understood that in the process of cutting the pulp board by the opening device 200 arranged on the inner wall of the inner cavity near the feed port, the pulp board thrown from the discharge port of the conveyor 300 will exert a force on the opening device 200. Therefore, in order to resist the force exerted by the pulp board on the opening device 200 during multiple feedings, the opening device 200 itself will generate stress. When the stress reaches a critical value, its structure may break and fall into the pulper body 100, causing greater damage to its internal structure (for example: rotor, screen plate, etc.). In order to disperse the stress of the opening device 200, the utility model provides a stress dispersion structure 400, which is arranged on the outer wall of the pulper body 100, and the opening device 200 passes through the inner wall of the pulper body 100 to be connected thereto. Therefore, in the process of the opening device 200 cutting the pulp plate, the stress dispersion structure 400 plays a role in dispersing the stress of the opening device 200 itself, which is beneficial to improving the fatigue threshold of the opening device 200, extending the service life of the opening device 200, thereby reducing the maintenance cost and repair cost of the pulper body 100.
[0020] For example, Figure 1 As shown, the stress dispersion structure 400 provided by the utility model includes a stress dispersion plate 401, which is sleeved on the pulper body 100, so as to disperse the stress generated by the material opening device itself and extend the service life of the material opening device. At the same time, the distance H between the top of the pulper body 100 and the stress dispersion plate 401 is 500mm-600mm, so that the height of the material opening device 200 connected to the stress dispersion structure 400 through the inner side wall of the pulper body 100 can be limited, and a safe distance is ensured between the material opening device 200 and the internal structure of the pulper body 100 (for example: rotor, screen plate, etc.), avoiding the phenomenon that the pulp plate cannot be cut in time due to the distance between the material opening device 200 and the internal structure of the pulper body 100 is too close, thereby reducing the probability of equipment failure caused by the pulp plate directly hitting the rotor, and reducing the maintenance cost and repair cost of the pulper body.
[0021] In practical applications, when the pulper body is a vertical structure, due to its large size and high height, with a certain probability, the floor will be mounted on the pulper body, that is, the feed port of the pulper body is located on the floor. At this time, the floor can be used as a stress dispersion plate in the pulping system to disperse the stress generated by the material opening device itself and extend the service life of the material opening device. It should be understood that the stress dispersion plate can include not only the floor but also a metal plate, and its specific type is not limited here, as long as it can play a role in dispersing stress.
[0022] For example, Figure 1 As shown, the stress dispersion structure 400 provided by the present invention further includes a connector 402, and the material opening device 200 passes through the inner side wall of the pulper body 100 and is connected to the stress dispersion plate 401 through the connector 402. Specifically, the connector 402 includes two longitudinal connectors 4021 and a transverse connector 4022 provided between the two longitudinal connectors 4021, and the transverse connector 4022 is used to transfer the stress between the two longitudinal connectors 4021.
[0023] In practical applications, the connector can be an I-beam, and a mounting hole is provided on the inner wall of the pulper body. The material cutting device can be fixedly connected to the side wall of a longitudinal beam of the I-beam by bolts through the inner wall of the pulper body, and the material cutting device is fully welded to the I-beam. The bottom ends of the two longitudinal beams (i.e., the part facing the bottom of the pulper body) are welded to the stress dispersion plate through a welding bottom plate, and the transverse beam between the two longitudinal beams can not only play a supporting role, but also transfer the stress between the two longitudinal beams to extend the service life of the I-beam and the material cutting device. It should be understood that the connector provided by the utility model can be adjusted according to actual conditions and is not limited here.
[0024] In an alternative approach, Figure 1 As shown, the pulper body 100 provided by the utility model comprises a cylinder 101, and a crushing structure 102 and a screen plate 103 arranged in the cylinder 101, wherein the discharge port of the pulper body 100 is arranged at the bottom of the cylinder 101, and the crushing structure 102 and the screen plate 103 are arranged in the cylinder 101 in sequence along the direction close to the discharge port of the pulper body 100. Therefore, when the pulp sheet is thrown above the feed port of the pulper body 100 along the discharge port of the conveyor 300, the opening device 200 arranged at the inner side wall of the inner cavity near the feed port cuts the pulp sheet into two halves and then falls into the cylinder 101, and the crushing structure 102 can crush the cut pulp sheet, and the pulp sheet enters the screen plate 103 after the crushing process, so as to prevent the pulp sheet that has not been reduced into a wood pulp state from flowing out of the discharge port of the pulper body 100.
[0025] For example, Figure 1 As shown, the pulverizing structure 102 provided by the utility model includes a support 1021 and a plurality of rotatable blades 1022 sleeved on the support 1021, and each rotatable blade 1022 is distributed along the circumferential direction of the support 1021. The angle between the blade surface of each rotatable blade 1022 and the axial direction of the support 1021 is 25° to 45°. Within this angle range, the pulp plate has a high number of collisions in this vortex, so the pulp plate is broken and dissociated into single fibers in the continuous collision, so that the pulverizing structure 102 achieves the purpose of fully pulverizing the pulp plate to meet the subsequent screening requirements. It should be understood that what is put into the pulper body is not limited to pulp plates, but also old books, waste cartons, etc., which are not limited here.
[0026] In the above description, the technical details of the patterning and etching of each layer are not described in detail. However, those skilled in the art should understand that various technical means can be used to form layers, regions, etc. of desired shapes. In addition, in order to form the same structure, those skilled in the art can also design methods that are not completely the same as the methods described above. In addition, although the various embodiments are described above separately, this does not mean that the measures in the various embodiments cannot be used in combination to advantage.
[0027] The embodiments of the present invention are described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. Without departing from the scope of the present invention, a person skilled in the art may make various substitutions and modifications, which should all fall within the scope of the present invention.
Claims
1. A pulping system, characterized in that: include: A pulper body, a material opening device and a conveyor, wherein the pulper body has an inner cavity, the top of the pulper body has a feed port connected to the inner cavity, the discharge port of the conveyor is located above the feed port, and the material opening device is arranged on the inner wall of the inner cavity near the feed port.
2. The pulping system according to claim 1, characterized in that: The pulping system further comprises a stress dispersion structure arranged on the outer side wall of the pulper body, and the material opening device passes through the inner side wall of the pulper body and is connected to the stress dispersion structure.
3. The pulping system according to claim 2, characterized in that: The stress dispersion structure comprises a stress dispersion plate, and the stress dispersion plate is sleeved on the pulper body.
4. The pulping system according to claim 3, characterized in that: The distance between the top of the pulper body and the stress dispersion plate is 500 mm to 600 mm.
5. The pulping system according to claim 3, characterized in that: The stress dispersion structure further includes a connecting piece, and the material opening device passes through the inner side wall of the pulper body and is connected to the stress dispersion plate through the connecting piece.
6. The pulping system according to claim 5, characterized in that: The connecting member comprises two longitudinal connecting members and a transverse connecting member arranged between the two longitudinal connecting members, and the transverse connecting member is used to transfer the stress between the two longitudinal connecting members.
7. The pulping system according to any one of claims 1 to 6, characterized in that: The pulper body comprises a cylinder and a crushing structure and a screen plate arranged in the cylinder. The discharge port of the pulper body is arranged at the bottom of the cylinder. The crushing structure and the screen plate are arranged in the cylinder in sequence along the direction close to the discharge port of the pulper body.
8. The pulping system according to claim 7, characterized in that: The pulverizing structure comprises a support member and a plurality of rotatable blades sleeved on the support member, and each of the rotatable blades is distributed along the circumferential direction of the support member.
9. The pulping system according to claim 8, characterized in that: The included angle between the blade surface of each rotatable blade and the axial direction of the support member is 25° to 45°.