A pulverization system for coupling agent production

Abstract

This utility model discloses a pulverizing system for coupling agent production, including a pulverizer, a cyclone separator, and a dust collector. The pulverizer is connected to the cyclone separator, and the cyclone separator is connected to the dust collector. The pulverizer includes a shell, a drive motor, a main shaft, a cutter disc, and an inner liner. The main shaft is mounted on the shell, and the cutter disc is mounted on the main shaft, with blades on the cutter disc. The main shaft is connected to the drive motor. The shell consists of an upper shell and a lower shell, with the inner liner disposed inside the upper and lower shells. The inner liner is a hollow semi-cylindrical shape with a toothed inner wall and arc-shaped protrusions. The upper and lower shells have grooves, and the arc-shaped protrusions have coolant inlets and outlets. The upper and lower shells also have a first inlet pipe and a first outlet pipe. This utility model avoids temperature rise during pulverization by injecting cooling medium into the inner liner. Because the inner liner has higher heat exchange efficiency in contact with the material, it can be replaced individually after damage, saving maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of coupling agent production technology, specifically to a pulverizing system for coupling agent production. Background Technology

[0002] Coupling agents are organosilicon compounds with reactive groups that can combine with inorganic and organic materials. They are widely used in the coatings, rubber, and pigment industries. Coupling agents such as aluminates and titanates are often produced in powder, block, or flake form. After producing large-particle-size coupling agents, they need to be pulverized again to meet customers' personalized particle size requirements. Since the melting point of coupling agents is typically 80–100℃ (e.g., aluminates), high temperatures can cause the material to soften and adhere to the cutter head, leading to equipment blockage. Sustained high temperatures may also damage the organic carbon chain structure of the coupling agent, reducing its compatibility with resins. Therefore, the pulverization temperature needs to be controlled below 80℃ or even lower. Existing pulverizers use a central clamping shell for cooling, but this requires replacing the entire shell after the working surface wears down, resulting in high costs. Adding an inner lining inside the shell increases the heat exchange distance between the shell and the material, affecting the cooling effect. Summary of the Invention

[0003] The main objective of this invention is to overcome the deficiencies of the prior art and provide a pulverizing system for the production of coupling agents.

[0004] To achieve the above objectives, this utility model proposes a pulverizing system for coupling agent production, comprising a pulverizer, a cyclone separator, and a dust collector. The discharge port of the pulverizer is connected to the inlet of the cyclone separator, the top outlet of the cyclone separator is connected to the air inlet of the dust collector, and the purified outlet of the dust collector is connected to the external atmosphere. The pulverizer includes a housing, a drive motor, a main shaft, a cutter disc, and an inner liner. The main shaft is mounted on the housing, the cutter disc is fixedly mounted on the main shaft, and a plurality of blades are arranged around the outer periphery of the cutter disc. One end of the main shaft is connected to the drive motor for transmission. The shell consists of an upper shell and a lower shell. The inner lining plate is respectively provided on the inner wall of the upper shell and the lower shell. The inner lining plate is hollow and semi-cylindrical. The inner wall of the inner lining plate is serrated. The outer wall of the inner lining plate is provided with arc-shaped protrusions. The inner walls of the upper shell and the lower shell are respectively provided with grooves corresponding to the arc-shaped protrusions. The arc apex of the arc-shaped protrusions on both sides is respectively provided with a coolant inlet and a coolant outlet. The upper shell and the lower shell are respectively provided with a first liquid inlet pipe and a first liquid outlet pipe that penetrate into the grooves and correspond to the coolant inlet and the coolant outlet.

[0005] In a further optimized technical solution, both the cutter head and the spindle are hollow structures and are interconnected. Rotary joints are provided at both ends of the spindle. One side of the rotary joint is connected to a second liquid inlet pipe, and the other side of the rotary joint is connected to a second liquid outlet pipe. Both the first liquid inlet pipe and the second liquid inlet pipe are connected to a main liquid inlet pipe, which is connected to an external coolant supply device. Both the first liquid outlet pipe and the second liquid outlet pipe are connected to a main liquid return pipe, which is connected to an external coolant recovery device.

[0006] In a further optimized technical solution, the upper shell is provided with a feeding hopper, which is located on the opposite side of the discharge port of the crusher.

[0007] In a further optimized technical solution, a first impeller is provided on the shaft body near the feed hopper, and a second impeller is provided on the shaft body near the discharge port of the crusher.

[0008] In a further optimized technical solution, the cutter head is provided in three sets, with a partition between two adjacent sets of cutter heads, and the three sets of cutter heads are located in the inner circular cavity enclosed by the inner lining plate.

[0009] In a further optimized technical solution, after the blade is installed on the cutter head, the distance between the blade and the inner liner plate gradually decreases from the feed hopper towards the discharge port.

[0010] In a further optimized technical solution, a circular vibrating screen is also included, which is located at the bottom of the cyclone separator, and the bottom outlet of the cyclone separator is connected to the inlet of the circular vibrating screen.

[0011] In a further optimized technical solution, the bottom outlet of the cyclone separator is provided with a first star-shaped unloader, and the outlet of the first star-shaped unloader is connected to the inlet of the circular vibrating screen through a hose.

[0012] In a further optimized technical solution, an induced draft fan is connected to the purification outlet of the dust collector.

[0013] In a further optimized technical solution, the bottom dust outlet of the dust collector is equipped with a second star-shaped unloader.

[0014] The beneficial effects of this utility model include: during the crushing process, cooling medium is injected into the inner liner through the coolant inlet. The flow direction of the cooling medium is opposite to that of the material, which cools the material during the crushing process and prevents the temperature from rising during crushing. Compared with the shell jacket cooling used in traditional crushers, the heat exchange efficiency of injecting cooling medium into the inner liner is higher because the inner circular surface (working surface) of the inner liner is in direct contact with the material during crushing. This reduces the amount of cooling medium used and energy consumption. Moreover, the working surface of the inner liner can be replaced separately after damage, saving maintenance costs. Attached Figure Description

[0015] Figure 1 This is an overall schematic diagram of the pulverizing system in an embodiment of this utility model.

[0016] Figure 2 This is a schematic diagram of the pulverizer in an embodiment of this utility model.

[0017] Figure 3 This is a schematic diagram of the shell after removing an inner liner plate in an embodiment of this utility model.

[0018] Figure 4 This is a schematic diagram of the inner lining plate in an embodiment of this utility model.

[0019] Figure 5 This is a schematic diagram of the upper and lower shells in an embodiment of this utility model.

[0020] Reference numerals: 1 Crusher; 101 Shell; 1011 Upper Shell; 1012 Lower Shell; 1013 Groove; 1014 First Inlet Pipe; 1015 First Outlet Pipe; 102 Drive Motor; 103 Main Shaft; 104 Cutter Disc; 105 Inner Liner; 1051 Toothed Structure; 1052 Arc-shaped Protrusion; 1053 Coolant Inlet; 1054 Coolant Outlet; 106 Blade; 107 Rotary Joint; 108 Second Inlet Pipe; 109 Second Outlet Pipe; 110 Main Inlet Pipe; 111 Main Return Pipe; 112 Feed Hopper; 113 First Impeller; 114 Second Impeller; 115 Baffle Plate; 2 Cyclone Separator; 3 Dust Collector; 4 Circular Vibrating Screen; 5 First Rotary Rotary Discharger; 6 Hose; 7 Exhaust Fan; 8 Second Rotary Rotary Discharger. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of the embodiments of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to that other component. Furthermore, a connection can be for both fixing and circuit connection purposes.

[0023] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] Please see Figures 1 to 5The present invention discloses a pulverizing system for coupling agent production, comprising a pulverizer 1, a cyclone separator 2, and a dust collector 3. The discharge port of the pulverizer 1 is connected to the feed port of the cyclone separator 2, the top outlet of the cyclone separator 2 is connected to the air inlet of the dust collector 3, and the purified outlet of the dust collector 3 is connected to the external atmosphere. The pulverizer 1 includes a housing 101, a drive motor 102, a main shaft 103, a cutter disc 104, and an inner liner 105. The main shaft 103 is rotatably mounted on the housing 101, and the cutter disc 104 is fixedly mounted on the shaft section of the main shaft 103 located inside the housing 101. A plurality of blades 106 are arranged around the outer periphery of the cutter disc 104, with the axial inclination angle of the blades 106 being 3°-5°. One end of the housing 101 is connected to the output end of the drive motor 102 via a belt drive. The housing 101 consists of an upper housing 1011 and a lower housing 1012. The upper housing 1011 and the lower housing 1012 are fixedly connected to form a closed receiving cavity. The inner lining plates 105 are respectively embedded in the inner walls of the upper housing 1011 and the lower housing 1012. The inner lining plates 105 are hollow semi-cylindrical in shape. When the two inner lining plates 105 are closed, they form a complete cylinder. The outer diameter of the cylinder matches the inner diameter of the receiving cavity formed by the upper housing 1011 and the lower housing 1012. The inner diameter of the cylinder matches the diameter of the blades 106 arranged around the cutter head 104. The inner wall of the inner lining plate 105 is provided with a toothed structure 1051 to enhance the impact of materials. Impact and shearing; an arc-shaped protrusion 1052 is provided on the outer wall of the inner lining plate 105, and grooves 1013 corresponding to the arc-shaped protrusion 1052 are respectively provided on the inner walls of the upper shell 1011 and the lower shell 1012. A coolant inlet 1053 and a coolant outlet 1054 are respectively provided at the arc apex of the arc-shaped protrusion 1052 on both sides. The coolant inlet 1053 is located at the discharge port near the crusher 1. A first liquid inlet pipe 1014 and a first liquid outlet pipe 1015 are respectively provided on the upper shell 1011 and the lower shell 1012, which penetrate into the grooves 1013 and correspond to the coolant inlet 1053 and the coolant outlet 1054. Specifically, an induced draft fan 7 is connected to the purification outlet of the dust collector 3. After the liner 105 is installed on the upper shell 1011 and the lower shell 1012 respectively, the arc-shaped protrusion 1052 is inserted into the interior of the groove 1013, and the first liquid inlet pipe 1014 is inserted into the coolant inlet 1053, and the first liquid outlet pipe 1015 is inserted into the coolant outlet 1054. A sealing ring (not shown) can be provided on the connection surface of the first liquid inlet pipe 1014 and the first liquid outlet pipe 1015 with the coolant inlet 1053 and the coolant outlet 1054 for sealing. A feed hopper 112 is provided on the upper shell 1011. The discharge port of the feed hopper 112 extends into the receiving cavity formed by the docking of the upper shell 1011 and the lower shell 1012, and the feed hopper 112 is located on the opposite side of the discharge port of the crusher 1.The main shaft 103 is located inside the housing 101 and is equipped with a first impeller 113 on the shaft body near the feed hopper 112. The rotation of the first impeller 113 generates a high-speed axial vortex airflow. The main shaft 103 is equipped with a second impeller 114 on the shaft body near the discharge port of the crusher 1. The rotation of the second impeller 114 generates a high-speed centrifugal airflow. The first impeller 113 and the second impeller 114 form a directional material flow, reducing over-grinding and ensuring uniform particle size.

[0026] In this embodiment, the lumpy or flake coupling agent material to be crushed enters the interior of the crusher 1 through the feed hopper 11. Under the high-speed rotation and impact of the first impeller 113, the material enters the area of ​​the cutter disc 104 (blade 106) and the inner liner 105. Under the action of the vortex airflow, the material undergoes a combination of impact, shearing, friction, compression, and collision between the materials, between the materials and the blades, and between the materials and the inner liner 105, resulting in crushing. The crushed material moves towards the second impeller 114 and is discharged from the discharge port of the crusher 1 into the cyclone separator 2 under the action of the second impeller 114. After separation in the cyclone separator 2, the particulate material is discharged from the bottom particulate outlet, and the dust-laden gas enters the dust collector 3 from the top outlet for dust removal. After processing, the dust material accumulates at the bottom of the dust collector 3 for recycling, and the purified gas is discharged to the outside atmosphere through the purification outlet of the dust collector 3, avoiding direct discharge of gas containing coupling agent dust and environmental pollution. During the crushing process, cooling medium is injected into the inner liner 105 through the coolant inlet 1053. The flow direction of the cooling medium is opposite to that of the material, so that the material is cooled during the crushing process, avoiding temperature rise during crushing. Compared with the shell jacket cooling used in traditional crushers, the heat exchange efficiency of the inner circular surface (working surface) of the inner liner 105 is higher because it is in direct contact with the material during crushing. This reduces the amount of cooling medium used and energy consumption. Moreover, the working surface of the inner liner 105 can be replaced separately after damage, saving maintenance costs.

[0027] In a preferred embodiment, both the cutter head 104 and the main shaft 103 are hollow structures and interconnected. Rotary joints 107 are provided at both ends of the main shaft 103. One rotary joint 107 is connected to a second inlet pipe 108, and the other rotary joint 107 is connected to a second outlet pipe 109. The first inlet pipe 1014 and the second inlet pipe 108 are both connected to a main inlet pipe 110, which is connected to an external coolant supply device. The first outlet pipe 1015 and the second outlet pipe 109 are both connected to a return pipe 111, which is connected to an external coolant recovery device. By allowing the cooling medium to enter the hollow channel of the main shaft 103 through the rotary joints 107 and then flow into the interior of the cutter head 104, the core crushing area (the contact surface between the blade 106 and the material) is directly cooled, further improving the cooling effect.

[0028] In a specific example, the cutter head 104 is provided with three sets, and a partition 115 is provided between two adjacent sets of cutter heads 104. The three sets of cutter heads 104 are located in the inner circular cavity enclosed by the inner liner plate 105. After the blades 106 are installed on the cutter head 104, the distance between the blades 106 and the inner liner plate 105 gradually decreases from the feed hopper 112 toward the discharge port of the crusher 1, and the inclination angle of the blades 106 gradually decreases. For example, the blades 106 near the feed side have an inclination angle of 5° for coarse crushing of large particles, the middle blades 106 have an inclination angle of 4° for medium crushing, and the blades 106 near the discharge end have an inclination angle of 3° for fine crushing. With the blade-liner plate distance gradually decreasing from the feed end to the discharge end (e.g., 5mm→2mm→0.5mm), a crushing field with progressively increasing intensity is formed. The partition plate 115 divides the inner circular cavity formed by the inner liner plate 105 into three crushing zones, forming a stepped crushing process, which improves crushing efficiency and product quality.

[0029] In a preferred embodiment, the pulverizing system for coupling agent production also includes a circular vibrating screen 4, which is located at the bottom of the cyclone separator 2. The bottom outlet of the cyclone separator 2 is connected to the inlet of the circular vibrating screen 4. Particles at the bottom of the cyclone separator 2 directly enter the circular vibrating screen 4 for grading. The undersize material is the coupling agent product that meets the particle size requirements, while the oversize material with large particle size is re-input into the pulverizer 1 for pulverization to ensure the uniformity of the particle size of the coupling agent product. The circular vibrating screen 4 is a prior art product, and its specific structure will not be described in detail here.

[0030] In a specific example, a first star-shaped discharger 5 is provided at the bottom outlet of the cyclone separator 2. The outlet of the first star-shaped discharger 5 is connected to the inlet of the circular vibrating screen 4 via a flexible hose 6. The first star-shaped discharger 5 prevents external air from being drawn back into the cyclone separator 2, causing dust to escape, and also avoids internal negative pressure imbalance that could affect separation efficiency. The flexible hose 6 flexibly isolates the high-frequency vibration of the circular vibrating screen 4, preventing vibration from being transmitted to the cyclone separator 2, extending the equipment's lifespan, and preventing fine powder from escaping. The cyclone separator 2 is an existing technology product, and its specific structure will not be described in detail here.

[0031] In a specific example, a second star-shaped unloader 8 is provided at the bottom dust outlet of the dust collector 3. The second star-shaped unloader 8 is used to perform airlock sealing to prevent external air from being sucked back and disrupting the negative pressure balance inside the dust collector 3, thus ensuring dust removal efficiency. The dust collector 3 adopts a bag dust collector, which is an existing technology product, and its specific structure will not be described in detail here.

[0032] The above description, in conjunction with specific / preferred embodiments, provides a further detailed explanation of the present invention and should not be construed as limiting the specific implementation of the present invention to these descriptions. For those skilled in the art, various substitutions or modifications can be made to these described embodiments without departing from the concept of the present invention, and all such substitutions or modifications should be considered within the protection scope of the present invention. In the description of this specification, the reference to terms such as "an embodiment," "some embodiments," "preferred embodiment," "example," "specific example," or "some examples," etc., indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples. Without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification and the features of different embodiments or examples. Although embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations may be made herein without departing from the scope of protection of the patent application.

Claims

1. A pulverizing system for coupling agent production, comprising a pulverizer, a cyclone separator, and a dust collector, wherein the discharge port of the pulverizer is connected to the inlet of the cyclone separator, the top outlet of the cyclone separator is connected to the air inlet of the dust collector, and the purified outlet of the dust collector is connected to the external atmosphere; characterized in that: The pulverizer includes a housing, a drive motor, a main shaft, a cutter disc, and an inner liner. The main shaft is mounted on the housing, and the cutter disc is fixedly mounted on the main shaft. Several blades are arranged around the outer periphery of the cutter disc. One end of the main shaft is connected to the drive motor. The housing consists of an upper shell and a lower shell. The inner liner is respectively provided on the inner wall of the upper shell and the lower shell. The inner liner is a hollow semi-cylindrical shape, and the inner wall of the inner liner has a toothed structure. The outer wall of the inner liner has an arc-shaped protrusion. The inner walls of the upper shell and the lower shell are respectively provided with grooves corresponding to the arc-shaped protrusions. The arc apex of the arc-shaped protrusions on both sides is respectively provided with a coolant inlet and a coolant outlet. The upper shell and the lower shell are respectively provided with a first inlet pipe and a first outlet pipe that penetrate into the grooves and correspond to the coolant inlet and the coolant outlet.

2. The pulverizing system as described in claim 1, characterized in that: Both the cutter head and the spindle are hollow structures and are interconnected. Rotary joints are provided at both ends of the spindle. One rotary joint is connected to a second liquid inlet pipe, and the other rotary joint is connected to a second liquid outlet pipe. Both the first liquid inlet pipe and the second liquid inlet pipe are connected to a main liquid inlet pipe, which is connected to an external coolant supply device. Both the first liquid outlet pipe and the second liquid outlet pipe are connected to a main liquid return pipe, which is connected to an external coolant recovery device.

3. The pulverizing system as described in claim 2, characterized in that: The upper shell is equipped with a feed hopper, which is located on the opposite side of the discharge port of the crusher.

4. The pulverizing system as described in claim 3, characterized in that: A first impeller is provided on the shaft body near the feed hopper, and a second impeller is provided on the shaft body near the discharge port of the crusher.

5. The pulverizing system as described in claim 4, characterized in that: The cutter head is provided in three sets, with a partition between two adjacent sets of cutter heads, and the three sets of cutter heads are located in the inner circular cavity enclosed by the inner lining plate.

6. The pulverizing system as described in claim 5, characterized in that: After the blade is installed on the cutter head, the distance between the blade and the inner liner plate gradually decreases from the feed hopper to the discharge port.

7. The pulverizing system according to any one of claims 1 to 6, characterized in that: It also includes a circular vibrating screen, which is located at the bottom of the cyclone separator, and the bottom outlet of the cyclone separator is connected to the inlet of the circular vibrating screen.

8. The pulverizing system as described in claim 7, characterized in that: The bottom outlet of the cyclone separator is equipped with a first star-shaped unloader, and the outlet of the first star-shaped unloader is connected to the inlet of the circular vibrating screen through a hose.

9. The pulverizing system as described in claim 1, characterized in that: An induced draft fan is connected to the purification outlet of the dust collector.

10. The pulverizing system as described in claim 9, characterized in that: The dust collector is equipped with a second star-shaped unloader at the bottom dust outlet.

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