VOC catalyst grinding and screening device

Abstract

The utility model discloses a VOC (volatile organic compound) catalyst grinding and screening device and belongs to the technical field of catalyst processing. The utility model discloses a grinding and screening device which comprises a box body, a feeding port is formed in the top wall of the box body, and a discharging port is formed in the bottom wall of the box body. The upper die is located below the feeding port and located in the box body, and a feeding gap is formed between the upper die and the side wall of the box body; a cavity is formed in the lower die, a water cooling system is arranged in the lower die, the water cooling system is used for cooling the grinding surface of the lower die, the lower die is located in the box body and tightly attached to the side wall of the box body, spiral scribed lines are arranged on the grinding surface of the lower die, a discharging hole is formed in the center of the lower die, and the discharging hole right faces the discharging opening; the driving device is mounted on the top wall of the box body, and the driving device is in driving connection with the upper die; and the screening structure is arranged below the box body, and a feeding port of the screening structure is right opposite to the discharging port.

Description

Technical Field

[0001] The utility model relates to the technical field of catalyst production and processing, in particular to a VOC catalyst grinding and screening device. Background Art

[0002] VOC catalysts are used to remove volatile organic compounds (VOCs) from the air. VOCs include compounds such as benzene, formaldehyde, acetone, xylene, toluene, and acetate, which are a major source of air pollution. VOC catalysts accelerate the oxidative decomposition of these VOCs, converting them into harmless CO2 and water. Therefore, they are widely used in industrial waste gas treatment, automobile exhaust emission control, and indoor air quality management.

[0003] Grinding can eliminate burrs and rough edges on the surface of VOC catalyst particles, improve the smoothness of the particles, and thus reduce friction, wear, and shedding between particles, thereby increasing the efficiency and reliability of the catalyst in long-term use and application. However, during the grinding process, VOC catalyst particles generate a large amount of heat, leading to sintering of the VOC catalyst particles, resulting in changes in the shape and size of the particles, which in turn affects the reactivity of the VOC catalyst.

[0004] Therefore, a VOC catalyst grinding and screening equipment is needed that can reduce the heat generated during the grinding process, avoid the sintering of VOC catalyst particles, and thus improve the reaction activity of the VOC catalyst. Utility Model Content

[0005] The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present utility model is to provide a VOC catalyst grinding and screening device. This VOC catalyst grinding and screening device is designed to address the technical problem that prior art grinding and screening devices generate a large amount of heat during the grinding process, leading to sintering of VOC catalyst particles, which in turn causes changes in particle shape and size, thereby reducing the reactivity of the VOC catalyst.

[0006] The VOC catalyst grinding and screening device includes:

[0007] A box body, wherein the top wall of the box body is provided with a material inlet, and the bottom wall of the box body is provided with a material outlet;

[0008] An upper mold, the upper mold is located below the feed port, the upper mold is located inside the box, and a feed gap is provided between the upper mold and the side wall of the box;

[0009] A lower die, wherein a cavity is provided inside the lower die, and a water cooling system is provided inside the lower die, and the water cooling system is used to cool the grinding surface of the lower die. The lower die is located inside the box body, and the lower die is in close contact with the side wall of the box body. The grinding surface of the lower die is provided with spiral engraved lines, and a discharge hole is provided at the center of the lower die, and the discharge hole is directly opposite to the discharge port;

[0010] A driving device, the driving device is mounted on the top wall of the box body and is drivingly connected to the upper mold;

[0011] A screening structure is provided below the box body, and an inlet of the screening structure is directly opposite to the outlet.

[0012] In some examples of the present invention, the grinding surface of the lower mold is a structural part made of a material with high thermal conductivity and high hardness.

[0013] In some examples of the present invention, the water cooling system includes:

[0014] a water cooling pipe, wherein the water cooling pipe is in close contact with the grinding surface of the lower die;

[0015] a compressor, one end of the water-cooling pipe being in communication with the compressor;

[0016] A circulating water pump, the circulating water pump being connected to the water cooling pipe and being used to provide circulating power;

[0017] A water tank filled with circulating water, the water tank being connected to a circulating water pump and a water cooling pipe, and being used to provide cooling water;

[0018] Wherein, the water tank, the compressor, the water cooling pipe and the circulating water pump form a circulation passage.

[0019] In some examples of the present invention, the surface of the upper mold facing away from the grinding surface is an inverted V-shaped structure.

[0020] In some examples of the present invention, the driving device is a driving motor, which is installed on the top wall of the box body, and the rotating shaft of the driving motor extends into the box body and is fixedly connected to the upper mold.

[0021] In some examples of the present invention, there are two feed openings, and the two feed openings are symmetrically distributed about the center of the box.

[0022] In some examples of the present invention, the screening structure includes:

[0023] a housing, the housing being rotatably connected to the bottom of the box;

[0024] A sieve drawer, wherein a sieve is provided at the bottom of the sieve drawer and the sieve drawer is detachably mounted inside the housing;

[0025] A power structure is provided at the bottom of the shell, and the power structure enables the shell to rotate in a horizontal direction.

[0026] In some examples of the present invention, there are multiple sieve drawers, and the multiple sieve drawers are distributed in sequence from top to bottom according to the diameter of the sieve holes.

[0027] In some examples of the present invention, the power structure includes:

[0028] A screening motor, the screening motor being fixedly mounted on the bottom of the housing;

[0029] A transverse partition, the transverse partition being located directly above the motor, and the transverse partition and the housing enclosing and forming an installation space for the power structure;

[0030] An eccentric block is fixedly mounted on the rotating shaft of the motor.

[0031] In some examples of the present invention, a hose is provided on the top of the shell, and a free end of the hose is rotatably connected to the bottom of the box.

[0032] Additional aspects and advantages of the present invention will be partially given in the description below, and some will become apparent from the description below, or through the practice of the present invention, it will be understood that the VOC catalyst grinding and screening device provided by the present invention can realize the integrated grinding and screening work, reduce the number of steps, thereby improving production efficiency, and by providing a water cooling system, it can effectively reduce the heat generated during the grinding process, avoid the phenomenon of catalyst particles becoming hardened due to excessive temperature, thereby improving the quality of the catalyst. Specifically, in actual operation, when this device is used, the VOC catalyst raw material to be ground is first added through the feed port at the top of the box. At this time, the upper mold is located below the feed port and a certain feed gap is left between it and the side wall of the box to ensure that the raw material can enter smoothly and be initially positioned. As the drive device starts, it drives the upper mold to rotate, so that the raw material between the upper mold and the lower mold is subjected to compression and shearing and is ground and refined. In order to ensure temperature control during the grinding process, a water cooling system is provided inside the lower mold. The system reduces the surface temperature of the lower mold by circulating coolant to avoid damage to the catalyst performance caused by excessive heat generated by friction. The grinding surface of the lower die is designed with spiral grooves, which help guide the material to move along a specific path, increase the contact area between the material and the lower die, and improve the grinding efficiency. The catalyst particles after grinding will gradually gather toward the center and eventually fall into the bottom of the box through the discharge hole at the center of the lower die. The discharge port at the bottom of the box is directly opposite the feed port of the screening structure, so that the ground catalyst can directly enter the screening structure for further grading. The screening structure is usually composed of a series of screens with different apertures, which can separate catalyst particles of different particle sizes to meet different application requirements. The entire process realizes an integrated operation from raw material input to finished product screening, greatly improving production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 This is a schematic diagram of the main structure of the VOC catalyst grinding and screening device provided by the utility model;

[0035] Figure 2 This is a schematic cross-sectional view of the VOC catalyst grinding and screening device provided by the utility model;

[0036] Figure 3This is a schematic diagram of the top view of the VOC catalyst grinding and screening device provided by the utility model;

[0037] Figure 4 This is a structural schematic diagram of the water cooling system in the VOC catalyst grinding and screening device provided by the utility model.

[0038] Description of reference numerals:

[0039] 100- box body; 110- discharge port; 120- inlet port;

[0040] 200-upper die; 201-feeding gap;

[0041] 300-lower die; 310-cavity; 320-grinding surface; 330-spiral engraving; 340-discharge hole;

[0042] 400-drive device;

[0043] 500 - screening structure; 510 - housing; 520 - screen drawer; 530 - power structure; 531 - screening motor; 532 - partition; 533 - eccentric block; 534 - hose;

[0044] 600-Water cooling system; 610-Water cooling pipe; 620-Compressor; 630-Circulating water pump; 640-Water tank. DETAILED DESCRIPTION

[0045] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0047] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0048] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0049] Figure 1 This is a schematic diagram of the main structure of the VOC catalyst grinding and screening device provided by the utility model; Figure 2 This is a schematic cross-sectional view of the VOC catalyst grinding and screening device provided by the utility model; Figure 3 This is a schematic diagram of the top view of the VOC catalyst grinding and screening device provided by the utility model; Figure 4 This is a schematic structural diagram of the water cooling system 600 in the VOC catalyst grinding and screening device provided by the present invention.

[0050] Reference below Figures 1-4 A VOC catalyst grinding and screening device according to an embodiment of the present invention includes:

[0051] The box body 100 has an inlet 120 on its top wall and an outlet 110 on its bottom wall. The box body 100 is a closed container for accommodating all components in the entire VOC catalyst grinding and screening process. The top wall of the box body 100 is designed with an inlet 120 so that the VOC catalyst particles to be ground can be fed into the box body 100; the bottom wall of the box body 100 is provided with an outlet 110 for discharging qualified particles after grinding and screening. In order to ensure the safety of operation and prevent dust leakage, the box body 100 is usually made of high-strength materials and has good sealing performance. For example, the box body 100 can be made of stainless steel to ensure sufficient strength and corrosion resistance, and a rubber sealing ring is provided at the opening of the box body 100 to enhance the sealing effect. In addition, the box body 100 may also be equipped with safety facilities such as an observation window or a pressure relief valve to facilitate monitoring of internal conditions and ensure the safety of the equipment during operation;

[0052] The upper mold 200 is located below the feed port 120. Its main function is to rotate back and forth under the action of the driving device 400 and cooperate with the lower mold 300 to complete the grinding of the VOC catalyst particles. The upper mold 200 is located inside the box body 100. A feed gap 201 is provided between the upper mold 200 and the side wall of the box body 100 to ensure that the VOC catalyst particles can smoothly enter the grinding area between the upper mold 2002 and the lower mold 3004. The design of the upper mold 200 needs to take into account the shape of the contact surface with the lower mold 300 and the choice of material to ensure grinding efficiency and quality. For example, the surface of the upper mold 200 can be made of carbide material to improve wear resistance and grinding efficiency; at the same time, the shape design of the upper mold 200 can be adjusted according to different application requirements, such as using a conical design to increase the grinding pressure, or using a flat design to achieve a uniform grinding effect;

[0053] The lower mold 300 has a cavity 310 provided inside the lower mold 300, and a water cooling system 600 is provided inside the lower mold 300. The water cooling system 600 is used to cool the grinding surface 320 of the lower mold 300. The lower mold 300 is located inside the box body 100, and the lower mold 300 is in close contact with the side wall of the box body 100. The grinding surface 320 of the lower mold 300 is provided with spiral lines 330. These lines help guide the VOC catalyst particles to move along a specific path, thereby improving the grinding efficiency. A discharge hole 340 is provided at the center of the lower mold 300, and the discharge hole 340 is opposite to the discharge port 110 at the bottom of the box body 100 so as to discharge the ground particles. In order to effectively control the heat generated during the grinding process, a water cooling system 600 is provided inside the lower mold 300. The system removes heat through circulating cooling water, thereby avoiding sintering of the VOC catalyst particles due to high temperature. For example, the water cooling system 600 may use copper pipes as cooling channels because copper has good thermal conductivity and can transfer heat quickly and efficiently;

[0054] The drive device 400 is mounted on the top wall of the housing 100 and is used to power the upper die 200, enabling it to move in a predetermined manner. The drive device 400 is in driving connection with the upper die 200. If high-precision control is required, a servo motor can be used as the drive device 400. A sophisticated control system can be used to adjust the speed and stroke of the upper die 200 to achieve the optimal grinding effect. Furthermore, the drive device 400 can be equipped with a speed reducer or gear transmission mechanism to accommodate varying operating conditions.

[0055] The screening structure 500 is arranged below the housing 100. The feed port 120 of the screening structure 500 is directly opposite to the discharge port 110. The main function of the screening mechanism is to grade and screen the ground VOC catalyst particles to ensure that only particles that meet the size requirements are collected. The screening structure 500 is usually composed of a vibrating screen, which moves the particles on the screen by vibration. Particles of different sizes will be separated according to the different screen apertures. For example, the screening structure 500 can adopt a multi-layer screen design, with the aperture of each layer of screen gradually decreasing, so as to ensure that the VOC catalyst particles finally collected have a high degree of uniformity.

[0056] Specifically, during actual operation, when this device is used, the VOC catalyst raw material to be ground is first added through the feed port 120 at the top of the housing 100. At this time, the upper mold 200 is located below the feed port 120, and a certain feed gap 201 is left between it and the side wall of the housing 100 to ensure that the raw material can enter smoothly and be initially positioned. As the driving device 400 is started, it drives the upper mold 200 to rotate, so that the raw material between the upper mold 200 and the lower mold 300 is squeezed and sheared and ground and refined. In order to ensure temperature control during the grinding process, a water cooling system 600 is set inside the lower mold 300. The system reduces the surface temperature of the lower mold 300 by circulating coolant to avoid damage to the catalyst performance due to excessive heat generated by friction. Spiral lines 330 are designed on the grinding surface 320 of the lower mold 300. These lines help guide the material to move along a specific path, increase the contact area between the material and the lower mold 300, and improve the grinding efficiency. After grinding, the catalyst particles gradually gather toward the center and eventually fall into the bottom of the box 100 through the discharge hole 340 at the center of the lower mold 300. The discharge port 110 at the bottom of the box 100 is aligned with the feed port 120 of the screening structure 500, allowing the ground catalyst to directly enter the screening structure 500 for further grading. The screening structure 500 is typically composed of a series of screens with different apertures, which can separate catalyst particles of different sizes to meet different application requirements. The entire process achieves an integrated operation from raw material input to finished product screening, greatly improving production efficiency and product quality.

[0057] The grinding surface 320 of the lower mold 300 is a structural member made of a material with high thermal conductivity and high hardness, so as to ensure that heat can be effectively transferred during the grinding process and the wear resistance of the grinding surface 320 is maintained, thereby improving the grinding efficiency and extending the service life of the equipment.

[0058] It should be noted that materials such as cemented carbide or ceramics can be used to manufacture the grinding surface 320 of the lower mold 300. For example, cemented carbide, due to its extremely high hardness and excellent heat resistance, is widely used in applications requiring high strength and wear resistance. Ceramic materials, on the other hand, not only offer excellent hardness and wear resistance, but also possess excellent thermal conductivity, effectively dissipating heat and preventing changes in the catalyst's properties due to excessive temperatures during the grinding process. These materials are then precision-machined into structural components that meet the design requirements and mounted on the lower mold 300.

[0059] like Figure 2 、 Figure 4 As shown, the water cooling system 600 provided according to an embodiment of the present invention includes:

[0060] The water cooling pipe 610 is in close contact with the grinding surface 320 of the lower mold 300 to ensure effective heat conduction;

[0061] Compressor 620: One end of the water cooling pipe 610 is connected to the compressor 620, and the circulating water is cooled by the compressor 620;

[0062] A circulating water pump 630 is connected to the water cooling pipe 610 and is used to provide circulating power;

[0063] A water tank 640 is filled with circulating water and is connected to the circulating water pump 630 and the water cooling pipe 610 for storing and replenishing cooling water.

[0064] Among them, the water tank 640, the compressor 620, the water cooling pipe 610 and the circulating water pump 630 form a circulation path, ensuring the continuous flow of cooling water in the system, thereby effectively controlling the temperature during the grinding process and improving the quality and production efficiency of the catalyst.

[0065] Specifically, the water-cooling tube 610 is made of a suitable material, such as a copper tube with good thermal conductivity, to ensure that it fits tightly against the grinding surface 320 of the lower mold 300. Secondly, a high-efficiency compressor 620 is configured to reduce the temperature of the circulating water in the water tank 640 through refrigerant circulation. Furthermore, a high-efficiency and low-noise circulating water pump 630 is selected to ensure a stable flow of cooling water in the system. Finally, a sufficiently large water tank 640 is designed to accommodate sufficient circulating water, and the connections between the water tank 640, the compressor 620, the water-cooling tube 610, and the circulating water pump 630 are well sealed, forming a complete circulation system. In this way, the heat generated during the grinding process can be effectively controlled, the temperature of the grinding surface 320 can be maintained within a suitable range, and the grinding quality and screening efficiency of the VOC catalyst can be improved.

[0066] Please continue to see Figure 2 As shown, according to one embodiment of the present invention, the surface of the upper mold 200 facing away from the grinding surface 320 is an inverted V-shaped structure, so that during the rotation of the upper mold 200, the VOC catalyst particles falling on the upper mold 200 through the feed port 120 can quickly enter the feed gap.

[0067] See also Figure 1 、 Figure 2Furthermore, the driving device 400 is a driving motor, which is mounted on the top wall of the box body 100, and the rotating shaft of the driving motor extends into the box body 100 and is fixedly connected to the upper mold 200. The driving device 400 adopts a driving motor, which is mounted on the top wall of the box body 100, and the rotating shaft of the driving motor can extend into the box body 100 to form a fixed connection with the upper mold 200, thereby ensuring that the driving motor can effectively transmit the rotational power to the upper mold 200, thereby driving the upper mold 200 to perform corresponding movements to complete the grinding and screening process of the VOC catalyst.

[0068] It should be noted that first, a suitable drive motor model should be selected to ensure that its power and torque meet the working requirements of the grinding and screening device; then, the rotating shaft of the drive motor is connected to the upper mold 200 through a coupling or other transmission components to ensure smooth and reliable transmission between the two; finally, the power transmission path of the entire system needs to be optimized, such as by adjusting the position of the rotating shaft or using appropriate bearings to reduce friction loss, improve transmission efficiency, and ensure that the entire device operates stably and efficiently.

[0069] Please continue to see Figure 2 、 Figure 3 As shown, according to another embodiment of the present invention, there are two feed inlets 120, and the two feed inlets 120 are symmetrically distributed about the center of the box body 100. This design allows the material to enter the box body 100 more evenly, thereby improving the efficiency and effect of grinding and screening.

[0070] Specifically, two feed inlets 120 can be opened symmetrically on either side of the center position at the top of the housing 100. For example, the geometric center point of the housing 100 can be first determined, and then two openings of equal size can be opened at equal distances on either side of the center point to serve as the feed inlets 120. To ensure uniform distribution of the material, a guide plate or other guiding structure can be installed under each feed inlet 120 to direct the material along a specific path within the housing 100, thereby achieving better material distribution. This design not only simplifies the structure of the device but also improves the efficiency of treating VOC catalysts.

[0071] Please continue to see Figure 1 and Figure 2 As shown, according to another embodiment of the present invention, the screening structure 500 includes:

[0072] The housing 510 is rotatably connected to the bottom of the housing 100 so that the housing 510 can rotate relative to the housing 100, thereby achieving vibration or rotation during the screening process of the catalyst, thereby improving the screening efficiency and effect;

[0073] The sieve drawer 520 has a sieve at the bottom thereof for screening the ground catalyst particles, ensuring that particles meeting the size requirements can pass through the sieve and fall into the collection container, while larger particles are retained and can be re-ground. The sieve drawer 520 is detachably mounted inside the housing 510, making it easy to replace sieves of different apertures to accommodate screening operations with different particle size requirements, while also facilitating cleaning and maintenance.

[0074] The power structure 530 is located at the bottom of the housing 510. This power structure 530 enables the housing 510 to rotate horizontally. For example, a drive device 400, such as an electric motor or pneumatic motor, transmits power to the housing 510 via gears, pulleys, or other transmission mechanisms, enabling the housing 510 to rotate stably in the horizontal direction. This design not only improves screening efficiency but also ensures uniform distribution of catalyst particles during the screening process, reducing the risk of clogging.

[0075] Specifically, a bearing is used as a rotating connection between the housing 510 and the housing 100 to ensure smooth rotation of the housing 510 without affecting the stability of the overall structure. The screen drawer 520 can be designed with a snap-on or threaded connection for quick assembly and disassembly. The screen can be made of stainless steel as needed and has different pore sizes to meet the screening requirements of catalysts of different particle sizes.

[0076] Please continue to see Figure 1 、 Figure 2 As shown, according to an optional embodiment of the present invention, a plurality of screen drawers 520 are provided, and the plurality of screen drawers 520 are distributed in sequence from top to bottom according to the diameter of the screen holes. Through the above structure, catalysts of different particle sizes can be effectively separated and collected, thereby improving the screening efficiency and the purity of the product.

[0077] Specifically, a VOC catalyst grinding and screening device can be designed that includes three sieve drawers 520. The top sieve drawer 520 has the largest sieve hole diameter, used to screen out the largest catalyst particles; the middle sieve drawer 520 has the second largest sieve hole diameter, used to screen out medium-sized catalyst particles; and the bottom sieve drawer 520 has the smallest sieve hole diameter, used to screen out the smallest catalyst particles. In this way, when the catalyst mixture enters the device from the top, due to vibration or other screening actions, catalysts of different particle sizes will be intercepted in different sieve drawers 520, achieving effective graded screening of VOC catalysts.

[0078] Please continue to see Figure 2 As shown, according to a further embodiment of the present invention, the power structure 530 includes:

[0079] Screening motor 531, which is fixedly mounted on the bottom of the housing 510, serves as the power source for the entire device and provides the necessary driving force for the screening process;

[0080] The transverse partition 532 is located directly above the screening motor 531. The transverse partition 532 and the housing 510 enclose an installation space for the power structure 530, thereby protecting internal components, reducing noise generated during operation, and preventing dust from entering the screening motor 531.

[0081] The eccentric block 533 is fixedly mounted on the rotating shaft of the motor. The rotation of the eccentric block 533 generates a vibration effect, thereby driving the entire screening mechanism to perform efficient screening operations.

[0082] Specifically, in practical applications, a Y90S-2 three-phase asynchronous motor with a rated power of 0.55 kW can be selected as the screening motor 531, meeting the requirements of a small-scale VOC catalyst grinding and screening device. The diaphragm 532 can be made of 3 mm thick steel plate to ensure sufficient strength and stability. The mass and eccentricity of the eccentric block 533 can be adjusted according to actual needs to achieve the optimal screening effect. This effectively implements the aforementioned technical features, improving the operating efficiency and reliability of the VOC catalyst grinding and screening device.

[0083] Please continue to see Figure 1 and Figure 2 As shown, in an optional embodiment of the present invention, a hose 534 is provided on the top of the shell 510, and the free end of the hose 534 is rotatably connected to the bottom of the box 100, so that the hose 534 can adapt to the movement requirements of different angles and directions, thereby being more flexible and convenient during use, and at the same time enabling it to be displaced in the vertical direction during the vibration screening process.

[0084] Specifically, a suitable material for the hose 534 is selected, such as a silicone tube or Teflon tube that is resistant to high temperatures and has a certain degree of flexibility, to ensure that the hose 534 can work normally in a high-temperature environment without affecting its performance; secondly, a corresponding interface is opened at the top of the shell 510, and one end of the hose 534 is fixed there; then, a rotary joint is set at the bottom of the box 100, and the joint has an embedded bearing to ensure smooth rotation, and the other end of the hose 534 is connected to the bottom of the box 100 through the rotary joint.

[0085] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0086] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A VOC catalyst grinding and screening device, characterized in that: include: A box body, wherein the top wall of the box body is provided with a material inlet, and the bottom wall of the box body is provided with a material outlet; An upper mold, the upper mold is located below the feed port, the upper mold is located inside the box, and a feed gap is provided between the upper mold and the side wall of the box; A lower die, wherein a cavity is provided inside the lower die, and a water cooling system is provided inside the lower die, and the water cooling system is used to cool the grinding surface of the lower die. The lower die is located inside the box body, and the lower die is in close contact with the side wall of the box body. The grinding surface of the lower die is provided with spiral engraved lines, and a discharge hole is provided at the center of the lower die, and the discharge hole is directly opposite to the discharge port; A driving device, the driving device is mounted on the top wall of the box body and is drivingly connected to the upper mold; A screening structure is provided below the box body, and an inlet of the screening structure is directly opposite to the outlet.

2. The VOC catalyst grinding and screening device according to claim 1, characterized in that: The grinding surface of the lower die is a structural part made of a material with high thermal conductivity and high hardness.

3. The VOC catalyst grinding and screening device according to claim 2, characterized in that: The water cooling system comprises: a water cooling pipe, wherein the water cooling pipe is in close contact with the grinding surface of the lower die; a compressor, one end of the water-cooling pipe being in communication with the compressor; A circulating water pump, the circulating water pump being connected to the water cooling pipe and being used to provide circulating power; A water tank filled with circulating water, the water tank being connected to a circulating water pump and a water cooling pipe, and being used to provide cooling water; Wherein, the water tank, the compressor, the water cooling pipe and the circulating water pump form a circulation passage.

4. The VOC catalyst grinding and screening device according to claim 1, characterized in that: The surface of the upper mold away from the grinding surface is an inverted V-shaped structure.

5. The VOC catalyst grinding and screening device according to claim 1, characterized in that: The driving device is a driving motor, which is mounted on the top wall of the box body. The rotating shaft of the driving motor extends into the box body and is fixedly connected to the upper mold.

6. The VOC catalyst grinding and screening device according to any one of claims 1 to 5, characterized in that: There are two feed openings, and the two feed openings are symmetrically distributed about the center of the box.

7. The VOC catalyst grinding and screening device according to claim 1, characterized in that: The screening structure comprises: a housing, the housing being rotatably connected to the bottom of the box; A sieve drawer, wherein a sieve is provided at the bottom of the sieve drawer and the sieve drawer is detachably mounted inside the housing; A power structure is provided at the bottom of the shell, and the power structure enables the shell to rotate in a horizontal direction.

8. The VOC catalyst grinding and screening device according to claim 7, characterized in that: There are multiple sieve drawers, and the sieve drawers are distributed in sequence from top to bottom according to the diameter of the sieve holes.

9. The VOC catalyst grinding and screening device according to claim 7, characterized in that: The power structure includes: A screening motor, the screening motor being fixedly mounted on the bottom of the housing; A transverse partition, the transverse partition being located directly above the motor, and the transverse partition and the housing enclosing and forming an installation space for the power structure; An eccentric block is fixedly mounted on the rotating shaft of the motor.

10. The VOC catalyst grinding and screening device according to claim 7, characterized in that: A hose is provided on the top of the shell, and the free end of the hose is rotatably connected to the bottom of the box.

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