A discharge valve with crushing and pelletizing device

Abstract

This utility model relates to a discharge valve with a crushing and granulating device, comprising a housing and a baffle plate rotatably disposed within the housing for blocking the first discharge port. The crushing and granulating device is mounted on the baffle plate. The crushing and granulating device includes a pneumatic motor, a connecting shaft, and a blade assembly. The pneumatic motor is mounted on the outside of the housing. One end of the connecting shaft is connected to the output end of the pneumatic motor, and the other end is connected to the blade assembly. The blade assembly, driven by the pneumatic motor, is used for crushing and granulating materials. This utility model integrates crushing and discharge functions, achieving efficient crushing and granulation.

Description

Technical Field

[0001] This utility model relates to the field of discharge valve technology, and in particular to a discharge valve with a crushing and granulation device. Background Technology

[0002] In industrial production, discharge valves are key equipment in material conveying systems and are widely used in chemical, food, and pharmaceutical industries, mainly for controlling the discharge and shut-off of materials.

[0003] However, existing discharge valves generally suffer from the drawback of having only one function. During the conveying or storage process, materials are prone to agglomeration due to factors such as moisture and pressure. When these agglomerated materials are discharged directly through the discharge valve, they may not only block the discharge port and affect the discharge efficiency, but also have an adverse effect on the quality of subsequent processing due to uneven particle size.

[0004] For example, Chinese patent publication number CN212549459U discloses a discharge flap valve for preventing material accumulation. It achieves the effect of preventing material accumulation and ensuring complete material discharge through an eccentrically set baffle and drive assembly. However, this valve can only perform the functions of discharging and preventing material accumulation, and cannot crush agglomerated materials.

[0005] Currently, to solve the problem of material agglomeration, it is usually necessary to set up independent crushing equipment upstream or downstream of the discharge valve. This not only increases the overall structural complexity and occupies more installation space, but also increases equipment costs and energy consumption. At the same time, secondary agglomeration or residue may occur during the transfer of materials between the discharge valve and the crushing equipment, affecting the processing effect.

[0006] Therefore, existing technologies suffer from drawbacks such as the single function of the discharge valve, the inability to simultaneously process agglomerated materials, and the need for additional crushing equipment, which leads to system complexity. Utility Model Content

[0007] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a discharge valve with a crushing and granulation device, which integrates crushing and discharge functions and achieves efficient crushing and granulation.

[0008] The above-mentioned utility model objective is achieved through the following technical solution:

[0009] A discharge valve with a crushing and granulating device includes a housing and a baffle plate rotatably disposed inside the housing for blocking the first discharge port, wherein the crushing and granulating device is installed on the baffle plate.

[0010] The crushing and granulation device includes a pneumatic motor, a connecting shaft, and a blade assembly.

[0011] The pneumatic motor is mounted on the outside of the housing;

[0012] One end of the connecting shaft is connected to the output end of the pneumatic motor, and the other end of the connecting shaft is connected to the blade assembly;

[0013] The blade assembly is used for crushing and granulating materials under the drive of the pneumatic motor.

[0014] The above technical solution integrates the crushing and granulation device into the baffle plate, realizing the integrated design of the discharge valve and crushing function: the pneumatic motor drives the blade assembly to rotate through the connecting shaft, so that the material is crushed in the sealed space of the discharge port blocked by the baffle plate, avoiding dust overflow; compared with the traditional discharge valve that requires separate configuration of crushing equipment, it significantly shortens the material conveying path, reduces the equipment footprint, and completes the crushing action through the same drive source, simplifying the control system and mechanical structure, reducing equipment cost and failure probability, and is particularly suitable for production scenarios with compact space.

[0015] As a further technical solution of this utility model: a magnetic fluid seal is provided at the connection between the connecting shaft and the housing.

[0016] The above technical solution involves installing a magnetic fluid seal at the connection between the connecting shaft and the housing. This seal utilizes a magnetic field to form a liquid sealing ring, solving the dynamic sealing problem during shaft rotation. Compared to traditional mechanical seals, the magnetic fluid seal exhibits no contact wear, significantly extending its service life and reducing maintenance frequency. Compared to packing seals, its sealing performance is more reliable, achieving zero leakage and completely preventing dust spillage and impurity intrusion. It is suitable for applications requiring high sealing performance, improving the reliability and environmental friendliness of the discharge valve.

[0017] As a further technical solution of this utility model: the blade assembly includes a spindle and a plurality of blades, the spindle is connected to the connecting shaft by a flat key, and the blades are fixed to the spindle by nuts.

[0018] Through the above technical solution, the blade assembly adopts a modular design of "spindle + blade", and torque transmission is achieved through a flat key and quick fixing with a nut, so that the blade can be replaced without disassembling the entire crushing device. When the blade needs to be adjusted due to wear or changes in material characteristics, the operator can complete the disassembly and replacement within minutes, significantly shortening downtime. At the same time, the flat key connection between the spindle and the connecting shaft ensures transmission accuracy and stability, avoids the decrease in crushing efficiency due to loosening, and improves the overall reliability and maintenance convenience of the equipment.

[0019] As a further technical solution of this utility model: the structural parameters of the blade are adapted to the material to be crushed, and the structural parameters include blade shape, thickness, and cutting angle.

[0020] Through the above technical solutions, the blade shape, thickness, and cutting angle are adapted to the characteristics of the crushed material (such as hardness, viscosity, and particle size), which can significantly improve crushing efficiency and particle size uniformity. For example, for high-hardness materials, a thick blade shape and a small cutting angle are adopted to enhance the blade's impact resistance; for sticky materials, the cutting edge curve and surface finish are optimized to reduce material adhesion; by adjusting the blade thickness and arrangement density, the particle size distribution can be precisely controlled to meet the needs of different production processes, enabling the equipment to maintain efficient and stable operation when processing diverse materials, and expanding the application scenarios and adaptability of the equipment.

[0021] As a further technical solution of this utility model: the baffle plate is provided with a receiving groove, and the two side walls of the receiving groove are guide slopes; the blade assembly is embedded in the receiving groove and protrudes above its groove surface.

[0022] The above technical solution involves creating receiving grooves with guide slopes on both sides of the baffle plate and embedding the blade assembly within them, which protrudes above the groove surface. This design allows the material to be orderly gathered within the blade's working range using the guide slopes, reducing jamming and improving the efficiency and uniformity of crushing and granulation. Furthermore, the embedded design utilizes the groove walls to protect the blade's sides, reducing impact wear. The protrusion above the groove surface ensures the blade edge fully cuts into the material while avoiding rigid collisions caused by excessive protrusion, thus balancing cutting performance and structural durability. In addition, the receiving grooves provide precise positioning for the blade assembly, facilitating quick disassembly and replacement, thereby reducing maintenance costs and improving production assembly efficiency.

[0023] In summary, this utility model has at least one of the following beneficial technical effects:

[0024] 1. This utility model discloses a discharge valve with a crushing and granulating device. By installing the crushing and granulating device on the baffle plate, the pneumatic motor, connecting shaft and blade assembly are designed in a coordinated manner to realize the integration of the discharge valve and crushing function, shorten the material conveying path and simplify the equipment structure.

[0025] 2. This utility model discloses a discharge valve with a crushing and granulation device. By setting a magnetic fluid seal at the shaft hole of the housing, a liquid sealing ring is formed by the magnetic field, achieving zero-leakage dynamic sealing when the connecting shaft rotates. This solves the wear and leakage problems of traditional sealing methods and is suitable for high-cleanliness production scenarios.

[0026] 3. This utility model discloses a discharge valve with a crushing and granulation device. It has a receiving groove opened by a baffle plate and a guide slope. The blade is embedded in the receiving groove and protected by the groove wall to reduce wear. It is raised above the groove surface to ensure cutting and avoid rigid collision, thus balancing performance and durability. The guide slope can also guide the material to converge and reduce jamming to improve crushing efficiency and uniformity, while facilitating disassembly and assembly. Attached Figure Description

[0027] Figure 1 This is a cross-sectional view of a discharge valve with a crushing and granulation device according to an embodiment of the present invention.

[0028] Figure 2 for Figure 1 Enlarged schematic diagram of the medium crushing and granulation device.

[0029] Reference numerals: 1. Machine casing; 11. First discharge port; 2. Baffle plate; 21. Receiving groove; 3. Crushing and granulating device; 31. Pneumatic motor; 32. Connecting shaft; 33. Blade assembly; 331. Main shaft; 332. Blade; 4. Magnetohydrodynamic seal; 5. Nut. Detailed Implementation

[0030] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0031] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] Example 1:

[0034] Reference Figure 1This utility model discloses a discharge valve with a crushing and granulating device, comprising a housing 1 and a baffle plate 2 rotatably disposed inside the housing 1 for blocking the first discharge port 11. The baffle plate 2 is equipped with a crushing and granulating device 3. The crushing and granulating device 3 includes a pneumatic motor 31, a connecting shaft 32 and a blade assembly 33. The pneumatic motor 31 is installed on the outside of the housing 1. One end of the connecting shaft 32 is connected to the output end of the pneumatic motor 31, and the other end of the connecting shaft 32 is connected to the blade assembly 33. The blade assembly 33 is used to crush materials under the drive of the pneumatic motor 31.

[0035] The housing 1 has a shaft hole on its side wall. The connecting shaft 32 passes through the shaft hole and extends into the housing 1. A magnetic fluid seal 4 is installed at the shaft hole. In addition, the magnetic fluid seal 4 adopts a design of stationary ring and rotating ring. The stationary ring is fixed to the inner wall of the shaft hole to provide a stable sealing base. The rotating ring rotates synchronously with the connecting shaft 32 and maintains the dynamic sealing state of magnetic fluid. This not only avoids the wear of components caused by friction in traditional mechanical seals, but also overcomes the defects of easy aging and poor sealing effect of packing seals. It ensures that the connecting shaft 32 maintains good sealing performance during rotation, extends the service life of the seal, and reduces the maintenance frequency.

[0036] Reference Figure 2 The blade assembly 33 includes a spindle 331 and multiple blades 332. The spindle 331 is connected to the connecting shaft 32 via a flat key. The blades 332 are fixed to the spindle 331 via nuts 5, and the blade shape, thickness, and cutting angle of the blades 332 are adapted to the material characteristics.

[0037] Reference Figure 1 The baffle plate 2 has a receiving groove 21, with guide slopes on both sides of the groove 21. When the baffle plate 2 remains closed to block the discharge port, the blade assembly 33 is driven by the pneumatic motor 31 to actively extend out of the receiving groove 21 to complete the crushing and granulation of the material. After crushing, the blade assembly 33 stops rotating, the baffle plate 2 rotates to open the discharge port, and the material is discharged directly under gravity or airflow. The guide slope design of the receiving groove 21 allows the blade assembly 33 to automatically slide out to a non-interference position during the opening of the baffle plate 2, avoiding obstruction of the material flow path. After the discharge is completed, the baffle plate 2 rotates back to the closed position, and the blade assembly 33 passively slides into the receiving groove 21 along the guide slope, ensuring that the blade is completely stored and protected in the non-working state to prevent collision and wear. The adaptation design of the blade 332 (blade shape, angle, etc.) further optimizes the sealing fit of the receiving groove 21 during reset.

[0038] The working process of a discharge valve with a crushing and granulating device according to this utility model is as follows:

[0039] I. Crushing Stage: Baffle 2 is closed, and crushing and pelletizing device 3 is in operation.

[0040] When the system is in its initial state, the baffle plate 2 completely blocks the first discharge port 11 of the casing 1, and the blade assembly 33 forms a sealed fit with the baffle plate 2 to prevent material leakage. The control system triggers the pneumatic motor 31 to start, which drives the blade assembly 33 to rotate at high speed through the connecting shaft 32. The blade assembly 33 then enters the working state and covers the material flow path inside the casing 1. The rotating blades 332 crush the material through shearing, impact, and other actions until the preset particle size requirement is met. During this process, the magnetohydrodynamic seal 4 ensures the dynamic sealing of the connecting shaft 32 during rotation, preventing material leakage and the intrusion of external impurities.

[0041] II. Tilting Stage: Crushing is complete, and baffle plate 2 opens to discharge material.

[0042] After the material is crushed to the required standard, the pneumatic motor 31 stops operating, and the blade assembly 33 remains stationary along with the connecting shaft 32. The drive mechanism drives the baffle plate 2 to rotate around the shaft, gradually opening the first discharge port 11. The blade assembly 33 moves synchronously with the baffle plate 2 without interfering with the inner wall of the casing 1 or the edge of the discharge port. The crushed material is discharged through the opened first discharge port 11 under the action of gravity or external pressure. Although the stationary blade assembly 33 is located within the material flow path, it does not obstruct the material discharge because it has stopped rotating.

[0043] III. Reset Phase: After material discharge is completed, baffle 2 closes and resets.

[0044] After the material is discharged, the drive mechanism drives the baffle plate 2 to rotate in the opposite direction to reset towards closing the first discharge port 11, and the blade assembly 33 adjusts accordingly to its initial working position. When the baffle plate 2 returns to the closed position, it re-establishes a sealing fit with the sealing surface of the casing 1 to ensure no leakage at the discharge port. It returns to its initial state and waits for the next crushing and discharge command. If the blade 332 needs to be replaced, maintenance can be quickly performed using the nut 5.

[0045] The implementation principle of this utility model is as follows: the crushing and granulation device 3 is integrated with the baffle plate 2 of the discharge valve. The core is to achieve a sequential coordinated function of "static crushing - dynamic discharge - sealing reset": During the crushing stage, the baffle plate 2 is closed, the pneumatic motor 31 drives the blade assembly 33 to rotate and crush the material, and the magnetohydrodynamic seal 4 ensures that there is no leakage when the connecting shaft 32 rotates; During the discharge stage, the blade assembly 33 is stationary, and the independent drive mechanism drives the baffle plate 2 to flip open, and the material is discharged through the path between the blade assemblies 33; During the reset stage, the baffle plate 2 returns to the closed position, and the blade assembly 33 adjusts to the initial state to form a seal. At the same time, the blades 332 can be adapted and replaced according to the material characteristics, which not only reduces the number of independent crushing equipment and shortens the material path, but also improves the convenience of maintenance and the scope of application.

[0046] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A discharge valve with a crushing and sizing device, comprising a casing (1), a baffle (2) rotatably arranged in the casing (1) for blocking a first discharge opening (11), characterized in that, The baffle plate (2) is equipped with a crushing and granulation device (3); The crushing and granulating device (3) includes a pneumatic motor (31), a connecting shaft (32), and a blade assembly (33). The pneumatic motor (31) is mounted on the outside of the housing (1); One end of the connecting shaft (32) is connected to the output end of the pneumatic motor (31), and the other end of the connecting shaft (32) is connected to the blade assembly (33); The blade assembly (33) is used for crushing and granulating materials under the drive of the pneumatic motor (31).

2. A discharge valve with a crushing and sizing device according to claim 1, characterized in that A magnetic fluid seal (4) is provided at the connection between the connecting shaft (32) and the housing (1).

3. A discharge valve with a crushing and sizing device according to claim 1, characterized in that, The blade assembly (33) includes a spindle (331) and a plurality of blades (332). The spindle (331) is connected to the connecting shaft (32) by a flat key, and the blades (332) are fixed to the spindle (331) by nuts (5).

4. A discharge valve with a crushing and sizing device according to claim 3, characterized in that The structural parameters of the blade (332) are adapted to the material to be crushed, and the structural parameters include blade shape, thickness, and cutting angle.

5. The dispensing valve with crushing and sizing device of claim 1, wherein, The baffle plate (2) has a receiving groove (21), and the two sides of the receiving groove (21) are guide slopes; the blade assembly (33) is embedded in the receiving groove (21) and protrudes above the groove surface of the receiving groove (21).

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