Pulverizer with pretreatment function

Abstract

The pulverizer with the pretreatment function comprises a shell, a pre-pulverizing mechanism, a main pulverizing mechanism and a screening assembly are arranged in the shell, the pre-pulverizing mechanism and the main pulverizing mechanism conduct pulverizing treatment on materials through a shearing mechanism, and the shearing mechanism, the pre-pulverizing mechanism and the main pulverizing mechanism are all driven by an executing mechanism.

Description

Technical Field

[0001] The present invention is a crusher with a pre - treatment function. Background Art

[0002] In chemical materials, chlorinated paraffin 70 is widely used in many fields such as wire and cable, plastic products, and rubber processing due to its excellent flame - retardant and plasticizing properties. It has significant advantages in processing performance and material safety and is a key additive in various formulation systems.

[0003] Currently, the industry generally implements the HG / T3643 - 1999 standard, which puts forward basic requirements for the particle size control of chlorinated paraffin 70, that is, the sieve residue shall not exceed 0.02%, and the corresponding sieve mesh aperture is 0.9 mm (i.e., 20 meshes). This standard has long been an important basis for product ex - factory inspection and has ensured product quality to a certain extent.

[0004] However, with the increasing requirements of downstream customers for fine processing of materials, product homogeneity, and performance consistency, the traditional particle size control standard has been difficult to meet the needs of the high - end market. Especially in applications such as high - performance cable materials and transparent flexible PVC products, the requirements for particle size control have increased significantly, and some users have put forward performance indicators that require ensuring 100% passing of the 0.425 - mm (40 - mesh) sieve.

[0005] In the currently used crushing system, there is generally a lack of an effective pre - crushing mechanism. Large - particle chlorinated paraffin raw materials directly enter the main crushing area without pre - treatment, resulting in a decrease in crushing efficiency, and the main crushing unit needs to bear a large particle size difference, thus causing problems such as uneven particle size of the discharged material and a decrease in the passing rate.

[0006] In addition, the direct entry of large particles into the main crushing device will also cause uneven mechanical load, resulting in increased wear of internal components, increased energy consumption, and even process risks such as material blockage. This not only affects production continuity but also has an adverse impact on the stable operation and long - term maintenance of the equipment.

[0007] In summary, the existing crushing technology has been difficult to meet the market requirements of higher standards for particle size control in terms of structural design and functional configuration. It is urgent to introduce a multi - stage crushing structure or set up an efficient pre - treatment unit to solve the problem of large - particle interference in the main crushing area and achieve the output of products with finer particle size and more uniform distribution. Summary of the Invention

[0008] The purpose of the present invention is to solve the above - mentioned deficiencies of the prior art and provide a crusher with a pre - treatment function.

[0009] A crusher with a preprocessing function includes a housing. A pre-crushing mechanism, a main crushing mechanism, and a screening component are provided inside the housing. The pre-crushing mechanism and the main crushing mechanism crush the material through a shearing mechanism, and the shearing mechanism, the pre-crushing mechanism, and the main crushing mechanism are all driven by an actuating mechanism.

[0010] Further, the housing is of a split structure and includes a machine body and a machine cover. During operation, the machine cover is closed at the opening of the machine body.

[0011] Further, the pre-crushing mechanism includes a number of moving needles and stationary needles. The moving needles and the stationary needles are arranged alternately. The stationary needles are fixed and immovable, and the moving needles are driven by the actuating mechanism to achieve rotational motion, forming relative motion with the stationary needles to constitute a shearing mechanism.

[0012] Further, the stationary needles are fixedly arranged on the inner surface of the machine cover, and the moving needles are arranged on the surface of a moving seat. The moving seat is connected to the actuating mechanism.

[0013] Further, the main crushing mechanism includes a number of moving teeth and stationary teeth. The moving teeth and the stationary teeth are arranged relatively and alternately. The stationary teeth are fixed and immovable, and the moving teeth are driven by the actuating mechanism to achieve rotational motion, forming relative motion with the stationary teeth to constitute a shearing mechanism.

[0014] Further, the stationary teeth are arranged inside a fixed gear ring, and the moving teeth are arranged outside a movable gear ring. The movable gear ring is fixedly connected to the moving seat. The moving teeth are located outside the moving needles, and the stationary teeth are located outside the moving teeth.

[0015] Further, the fixed gear ring is in a semi-circular ring shape. The stationary teeth are arranged at intervals along the circumferential direction of the inner circumference of the fixed gear ring. The fixed gear ring is arranged in the upper half of the inner cavity of the machine body. The movable gear ring includes two annular movable plates. The two movable plates are arranged in parallel at intervals. The moving teeth are connected between the two movable plates. The moving teeth are arranged at intervals along the circumferential direction of the outer periphery of the movable plates. The moving seat is arranged at the center of the movable gear ring close to the inner side of the inner cavity of the machine body. The moving needles are arranged circumferentially around the center of the moving seat.

[0016] Further, the actuating mechanism is a turbine.

[0017] Further, the screening component includes a sieve mesh and a mounting frame. The mounting frame is in a semi-circular ring shape and is arranged in the lower half of the inner cavity of the machine body. The sieve mesh is attached to the mounting frame, and both ends of the sieve mesh extend beyond both ends of the mounting frame. Two symmetric baffles are provided in the middle section of the inner side wall of the inner cavity of the machine body. A through groove is provided on the lower end surface of the baffle. The parts of the sieve mesh extending beyond both ends of the mounting frame are clamped in the through groove.

[0018] Further, a ring-shaped sealing gear ring is provided on the inner surface of the machine cover. A plurality of circumferential sealing teeth are provided on the surface of the sealing gear ring. When the machine cover and the machine body are closed, the sealing teeth are engaged with the stationary teeth to form a sealing pair.

[0019] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0020] By integrating the pre-crushing mechanism with the main crushing mechanism, a multi-stage shearing pulverization system is constructed, which can effectively achieve continuous and efficient pulverization of materials with different particle sizes and physical properties. The pre-crushing mechanism first performs preliminary shearing to reduce the material size, while the main crushing mechanism further refines the material to achieve precise pulverization at the particle level, improving the overall pulverization effect and material compatibility.

[0021] The housing features a split body and cover design, facilitating routine maintenance and internal cleaning, enhancing ease of use and operational safety. The staggered arrangement of the shearing mechanisms, consisting of moving needles and teeth, and stationary needles and teeth, coupled with a rotary drive, ensures efficient and stable material shearing, making it particularly suitable for processing fibrous, tough, or complex materials.

[0022] In terms of structural details, the static teeth are fixed on the inner side of the semicircular fixed gear ring, and the movable teeth are connected between two parallel annular movable plates to form a stable movable gear ring system. This not only enhances the overall mechanical rigidity of the equipment, but also significantly reduces vibration during operation, which is conducive to extending the service life and maintaining the consistency of the shearing effect.

[0023] The actuator utilizes a turbine structure as its power source, offering advantages such as compact structure, high transmission efficiency, and low noise. It is suitable for continuous operation in industrial environments and significantly improves the overall operational stability and reliability of the equipment. The screening assembly utilizes a screen mesh mounted on a semicircular mounting bracket. Combined with the baffle slots built into the inner wall of the unit, this allows for secure mounting and quick assembly and disassembly of the screen mesh, improving screening accuracy and ease of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the internal structure of the body;

[0025] Figure 2 This is a schematic diagram of the assembly of the moving needle and the moving gear;

[0026] Figure 3 It is a schematic diagram of the hood;

[0027] Figure 4 is a schematic diagram of the mounting frame;

[0028] In the figure, 1, machine body, 2, fixed gear ring, 3, static gear, 4, movable gear ring, 5, movable gear, 6, movable needle, 7, baffle, 8, through groove, 9, mounting frame, 10, movable plate, 11, static needle, 12, sealing gear ring. DETAILED DESCRIPTION

[0029] To deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and the accompanying drawings. The embodiments are only used to explain the present invention and do not limit the protection scope of the present invention.

[0030] A crusher with a pre-treatment function includes a housing. A pre-crushing mechanism, a main crushing mechanism, and a screening assembly are provided inside the housing. The pre-crushing mechanism and the main crushing mechanism perform crushing treatment on the material through a shearing mechanism, and the shearing mechanism, the pre-crushing mechanism, and the main crushing mechanism are all driven by an actuator.

[0031] This crusher completes the step-by-step crushing of the material through the cooperation of the pre-crushing mechanism and the main crushing mechanism arranged inside the housing. After the material first enters the housing, it is subjected to primary crushing treatment by the pre-crushing mechanism, and then further refined crushing by the main crushing mechanism. Both the pre-crushing mechanism and the main crushing mechanism are configured with shear structures that can move relative to each other, so that the material is efficiently broken under the action of relative shear force. The entire shearing and crushing process is driven by the actuator to ensure that the components in the shearing mechanism generate the necessary motion forms (such as rotation), thereby realizing continuous shearing actions. The screening assembly then screens the crushed material by particle size to ensure that the output fine material meets the specification requirements.

[0032] This solution realizes the efficient treatment of materials with different particle sizes and structures by integrating two stages of pre-crushing and main crushing. The design of the shearing mechanism improves the crushing efficiency and adaptability, and can process fibrous, tough or hard materials. Since all mechanisms are driven by a unified actuator, the structural design is simplified and the maintenance complexity is reduced. The overall equipment structure is compact and the function integration degree is high, which is conducive to the miniaturization and multi-function development of the equipment. At the same time, the supporting screening assembly realizes automatic grading, enhancing the intelligent processing ability of the whole machine.

[0033] In a possible implementation manner, the housing is of a split structure, and the housing includes a body 1 and a machine cover. During operation, the machine cover is closed at the opening of the body 1.

[0034] The housing of this crusher adopts a split structure, so that the body 1 and the machine cover can be detachably separated. Before operation, the machine cover and the body 1 are cooperatively closed to form a sealed crushing cavity, and the cavity is kept stably closed during the crushing process to ensure that the material does not leak. After the crushing is completed, the user can open the machine cover for easy cleaning and maintenance of the equipment, improving the operation convenience.

[0035] The split structure is conducive to the inspection, maintenance and cleaning of the internal structure of the equipment, reducing the difficulty of daily maintenance. The closing design enhances the working sealing performance, avoids dust leakage, and improves the safety and hygiene performance. [[ID=z19]]

[0036] In a possible implementation, the pre-crushing mechanism includes a number of moving needles 6 and stationary needles 11. The moving needles 6 and the stationary needles 11 are arranged alternately. The stationary needles 11 are fixed and immovable, and the moving needles 6 are driven by an actuator to achieve rotational motion, forming a relative motion with the stationary needles 11 to constitute a shearing mechanism.

[0037] The pre-crushing mechanism performs shearing and crushing by the alternating arrangement and relative motion of the stationary and moving needles 11. The stationary needles 11 remain stationary and are fixed inside the equipment, and the moving needles 6 rotate in a circular motion driven by the actuator, generating a strong shearing force with the stationary needles 11 to break the primary materials.

[0038] The relative shearing structure of the stationary and moving needles 11 makes the pre-crushing process more efficient, can adapt to materials with larger volumes or complex initial structures, provides a suitable particle size basis for subsequent main crushing, and improves the overall processing efficiency.

[0039] In a possible implementation, the stationary needles 11 are fixedly arranged on the inner surface of the machine cover, and the moving needles 6 are arranged on the surface of the moving seat, and the moving seat is connected to the actuator.

[0040] The stationary needles 11 adhere to the inner surface of the machine cover to form a stable shearing counter plane, and the moving needles 6 are installed on the surface of the moving seat and are connected to the actuator through the moving seat. When the actuator works, it drives the moving seat to rotate, thereby driving the moving needles 6 to perform a shearing motion relative to the stationary needles 11.

[0041] This structure simplifies the component layout, facilitates the disassembly and assembly of the machine cover and the maintenance of the needle body, improves the structural stability and use convenience of the equipment, and enhances the accuracy of the shearing process.

[0042] In a possible implementation, the main crushing mechanism includes a number of moving teeth 5 and stationary teeth 3. The moving teeth 5 and the stationary teeth 3 are arranged relatively alternately. The stationary teeth 3 are fixed and immovable, and the moving teeth 5 are driven by an actuator to achieve rotational motion, forming a relative motion with the stationary teeth 3 to constitute a shearing mechanism.

[0043] The main crushing mechanism achieves fine shearing through the staggered arrangement of the moving teeth 5 and the stationary teeth 3. The moving teeth 5 rotate around the center driven by the actuator, and the stationary teeth 3 remain stationary. During the rotation process, a continuous shearing action occurs between the two, and the preliminarily crushed materials are subjected to secondary deep crushing.

[0044] The shearing mechanism of the stationary and moving teeth 3 provides a larger shearing contact surface area and shearing efficiency, is applicable to various material materials, ensures uniform crushing particle sizes, and enhances the crushing effect.

[0045] In a possible implementation, the stationary teeth 3 are arranged on the inner side of the fixed gear ring 2, the moving teeth 5 are arranged on the outer side of the movable gear ring 4, the movable gear ring 4 is fixedly connected to the moving seat, the moving teeth 5 are located outside the moving needles 6, and the stationary teeth 3 are located outside the moving teeth 5.

[0046] The stationary teeth 3 are evenly distributed around the inner side of the fixed gear ring 2 to form a stable outer ring. The moving teeth 5 are arranged on the outer periphery of the moving tooth ring 4, and form a shearing contact surface with the stationary teeth 3. The moving tooth ring 4 is linked with the moving seat, enabling the moving teeth 5 to achieve rotational motion, thereby forming a continuous shearing path with the stationary teeth 3. The moving teeth 5 are arranged around the outer periphery of the moving needle 6 and form a hierarchical structure with the pre-crushing.

[0047] The design of the annular gear ring improves the structural stability and shearing continuity, helps to form the transition from pre-crushing to main crushing, and enhances the overall crushing efficiency and output consistency.

[0048] In a possible implementation, the fixed gear ring 2 is in the shape of a semi-circular ring. The stationary teeth 3 are arranged at intervals along the circumferential direction of the fixed gear ring 2 on the inner circumference of the fixed gear ring 2. The fixed gear ring 2 is arranged in the upper half part of the inner cavity of the machine body 1. The moving tooth ring 4 includes two annular moving plates 10. The two moving plates 10 are arranged in parallel at intervals. The moving teeth 5 are connected between the two moving plates 10. The moving teeth 5 are arranged at intervals along the circumferential direction of the moving tooth ring 4 on the outer periphery of the moving plates 10. The moving seat is arranged at the center of the moving tooth ring 4 near the inner side of the inner cavity of the machine body 1. The moving needle 6 is arranged circumferentially around the center of the moving seat.

[0049] This structure enhances the stability and strength of the moving teeth 5 by arranging the double-layer moving plates 10 to carry the moving teeth 5. The moving teeth 5 are evenly distributed around the central moving seat to achieve annular high-efficiency shearing. The fixed gear ring 2 is located in the upper half cavity, enabling the material to pass through the main crushing area for processing preferentially after falling under gravity. The moving needle 6 is located outside the moving seat to achieve the hierarchical cooperation of pre-crushing and main crushing in space.

[0050] The double-ring plate structure improves the overall rigidity of the gear ring, reduces the running vibration, extends the service life, optimizes the material flow direction, effectively controls the crushing path, and improves the production efficiency.

[0051] In a possible implementation, the actuator is a turbine.

[0052] The turbine serves as the driving source and is linked with the moving seat for transmission. It drives the moving needle 6 and the moving teeth 5 to move synchronously through rotation, realizing the shearing and crushing process in the pre-crushing and main crushing areas. The turbine structure can provide stable output through fluid or mechanical energy.

[0053] Adopting the turbine drive form has a compact structure, high transmission efficiency, low noise, is suitable for continuous operation occasions, and improves the reliability and adaptability of the equipment.

[0054] In a possible implementation, the screening component includes a screen mesh and a mounting frame 9. The mounting frame 9 is in the shape of a semi-circular ring and is disposed in the lower half of the inner cavity of the machine body 1. The screen mesh is attached to the mounting frame 9, and both ends of the screen mesh extend beyond both ends of the mounting frame 9. In the middle section of the inner side wall of the inner cavity of the machine body 1, there are two symmetrical baffles 7. A through groove 8 is provided on the lower end surface of the baffle 7. The parts of the screen mesh that extend beyond both ends of the mounting frame 9 are clamped in the through groove 8.

[0055] The screen mesh adheres to the surface of the semi-circular mounting frame 9. The mounting frame 9 is disposed in the lower cavity part of the housing. After the material is crushed, it freely falls onto the surface of the screen mesh and is screened through particle size matching. The extended parts at both ends of the screen mesh are inserted into the through groove 8 under the baffle 7, playing a role in positioning and stabilizing, and ensuring the screening accuracy and the tension of the screen mesh.

[0056] This structure facilitates the replacement and cleaning of the screen mesh. At the same time, the cooperation between the mounting frame 9 and the through groove 8 improves the stability of the screen mesh, ensures the screening accuracy, and effectively separates the qualified particles from the uncrushed materials.

[0057] In a possible implementation, an annular sealing tooth ring 12 is provided on the inner surface of the machine cover. A plurality of circumferential sealing teeth are provided on the surface of the sealing tooth ring 12. When the machine cover and the machine body 1 are closed, the sealing teeth are engaged with the static teeth 3 to form a sealing pair.

[0058] The sealing tooth ring 12 is fixed to the inner surface of the machine cover and is engaged with the static teeth 3 when closed, constituting a complete sealed cavity to prevent dust and materials from leaking out. At the same time, it improves the stability of the shearing area. The design of the sealing teeth can form a micro-negative pressure to reduce dust dispersion.

[0059] The annular sealing pair structure improves the airtightness and hygiene level of the equipment, avoids dust leakage during operation, ensures a clean operating environment, and meets the high cleanliness requirements of industries such as food and medicine.

[0060] Working principle: The material enters the inner cavity from the feed inlet and is first crushed by the pre-crushing mechanism composed of the moving needle 6 and the static needle 11. After that, under the action of centrifugation, the material that has become fragments moves to the outer periphery of the inner cavity and is then crushed for the second time under the action of the moving teeth 5 and the static teeth 3. The crushed material moves with the moving teeth 5 in the inner cavity. When it moves to the screening component in the lower half of the inner cavity, if the size of the fragments is smaller than the size of the screen holes of the screen mesh, it can be discharged. If it cannot pass through the screen holes, it will continue to be crushed under the action of the moving teeth 5 and the static teeth 3.

[0061] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A crusher with a preprocessing function, characterized in that It includes a housing, and a pre-crushing mechanism, a main crushing mechanism, and a screening component are arranged inside the housing. The pre-crushing mechanism and the main crushing mechanism crush the material through a shearing mechanism, and the shearing mechanism, the pre-crushing mechanism, and the main crushing mechanism are all driven by an actuator.

2. The crusher according to claim 1, characterized in that, The housing is of a split structure and includes a machine body and a machine cover. During operation, the machine cover covers the opening of the machine body.

3. The crusher according to claim 2, characterized in that, The pre-crushing mechanism includes a number of moving needles and static needles. The moving needles and the static needles are arranged alternately. The static needles are fixed and immovable, and the moving needles are driven by the actuator to achieve rotational motion, forming relative motion with the static needles to constitute a shearing mechanism.

4. The crusher according to claim 3, characterized in that, The static needles are fixedly arranged on the inner surface of the machine cover, and the moving needles are arranged on the surface of the moving seat. The moving seat is connected to the actuator.

5. The crusher according to claim 4, characterized in that, The main crushing mechanism includes a number of moving teeth and static teeth. The moving teeth and the static teeth are arranged relatively and alternately. The static teeth are fixed and immovable, and the moving teeth are driven by the actuator to achieve rotational motion, forming relative motion with the static teeth to constitute a shearing mechanism.

6. The crusher according to claim 5, characterized in that, The static teeth are arranged inside the fixed tooth ring, and the moving teeth are arranged outside the movable tooth ring. The movable tooth ring is fixedly connected to the moving seat. The moving teeth are located outside the moving needles, and the static teeth are located outside the moving teeth.

7. The crusher according to claim 6, wherein The fixed tooth ring is in a semi-circular ring shape. The static teeth are arranged at intervals along the circumference of the inner periphery of the fixed tooth ring. The fixed tooth ring is arranged in the upper half of the inner cavity of the machine body. The movable tooth ring includes two annular movable plates, and the two movable plates are arranged in parallel at intervals. The moving teeth are connected between the two movable plates. The moving teeth are arranged at intervals along the circumference of the outer periphery of the movable plates. The moving seat is arranged at the center of the movable tooth ring near the inner side of the inner cavity of the machine body, and the moving needles are arranged circumferentially around the center of the moving seat.

8. The crusher according to any one of claims 1-7, characterized in that, The actuator is a turbine.

9. The crusher with a preprocessing function according to claim 8, characterized in that, The screening component includes a screen and a mounting frame. The mounting frame is in a semi-circular ring shape and is arranged in the lower half of the inner cavity of the machine body. The screen is attached to the mounting frame, and both ends of the screen extend beyond both ends of the mounting frame. There are two symmetric baffles in the middle of the inner side wall of the inner cavity of the machine body. A through groove is provided on the lower end surface of the baffle, and the parts of the screen extending beyond both ends of the mounting frame are clamped in the through groove.

10. A crusher with a preprocessing function according to claim 9, characterized in that, A ring-shaped sealing tooth ring is provided on the inner surface of the machine cover. A plurality of sealing teeth are provided circumferentially on the surface of the sealing tooth ring. When the machine cover and the machine body are closed, the sealing teeth are engaged with the static teeth to form a sealing pair.

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