A feed processing ultrafine grinding device

Abstract

This invention relates to the field of pulverization technology, specifically to an ultrafine pulverization device for feed processing. The device includes a body with a pulverization chamber inside. The pulverization chamber contains a pulverization component and a filtering component. A first negative pressure suction component and a second negative pressure suction component, respectively communicating with the pulverization chamber, are located at the top and bottom of the body. A saturation detection mechanism is installed on the pulverization component, and an automatic adjustment mechanism is installed on the first negative pressure suction component. The automatic adjustment mechanism is connected to the saturation detection mechanism. This application, through the cooperation of the saturation detection mechanism and the automatic adjustment mechanism, not only automatically adjusts the feed rate according to the material saturation inside the pulverization chamber, effectively solving the problem of easy clogging in pulverization devices and improving pulverization efficiency, but also cleverly utilizes airflow to dissipate heat from the inside of the pulverization device, ensuring the quality of ultrafine pulverized feed produced by modern feed processing enterprises.

Description

Technical Field

[0001] This invention relates to the field of pulverization technology, specifically to an ultrafine pulverization device for feed processing. Background Technology

[0002] With the development of animal husbandry, the requirements for feed quality are increasing. The size of feed pellets plays a key role in animal digestion and absorption. Ultra-finely ground feed can significantly improve feed utilization, reduce animal excrement, lower breeding costs, and benefit the environment.

[0003] Most existing feed grinding devices are blade crushers. Blade crushers have a main shaft inside the grinding chamber, with blades mounted on it. A drive motor rotates the main shaft and blades to grind the raw materials. In actual grinding operations, it's difficult to control the feed rate based on the saturation level of the material in the grinding chamber. If a large amount of material floods into the grinding chamber, it not only over-occupies the chamber space, but also lacks sufficient space for the material to tumble and disperse during grinding. This prevents the blades from effectively contacting each particle, leading to decreased grinding efficiency and even blockages inside the grinding chamber, ultimately paralyzing the entire grinding device.

[0004] Therefore, existing feed grinding devices are prone to clogging because it is difficult to detect and control the saturation of materials in the grinding chamber, making it difficult to meet the needs of modern feed processing enterprises for high-quality ultrafine ground feed. Summary of the Invention

[0005] In order to meet the demand of modern feed processing enterprises for high-quality ultrafine pulverized feed, solve the problem of easy clogging of pulverizing equipment, and improve pulverizing efficiency, this application provides an ultrafine pulverizing device for feed processing.

[0006] The feed processing ultrafine grinding device provided in this application adopts the following technical solution:

[0007] An ultrafine pulverizing device for feed processing includes a body with a pulverizing chamber inside. A pulverizing assembly is rotatably connected to the body inside the pulverizing chamber. A first negative pressure suction assembly communicating with the pulverizing chamber is located at the top of the body, and a second negative pressure suction assembly communicating with the pulverizing chamber is located at the bottom of the body. A filter assembly is disposed between the second negative pressure suction assembly and the pulverizing chamber. A saturation detection mechanism is provided on the pulverizing assembly. An automatic adjustment mechanism is provided on the first negative pressure suction assembly and connected to the saturation detection mechanism. A manual adjustment mechanism is provided on the second negative pressure suction assembly.

[0008] Furthermore, the pulverizing assembly includes a main shaft, which is rotatably connected to the machine body at a position passing through the center of the pulverizing chamber. Two mounting discs symmetrically arranged at both ends of the pulverizing chamber are fixedly connected to the main shaft. A driving component is driven to one end of the main shaft that passes through the machine body. Multiple annularly distributed first mounting shafts are installed between the two mounting discs. The multiple first mounting shafts and the saturation detection mechanism are annularly distributed on the mounting discs. Several parallel first pulverizing blades are rotatably connected to each of the first mounting shafts. A first limiting ring is installed between two adjacent first pulverizing blades.

[0009] Furthermore, the first negative pressure suction assembly includes a first negative pressure fan, which is installed on the top of the machine body. A three-way pipe is installed at the air inlet of the first negative pressure fan. The vertically upward end of the three-way pipe is connected to the automatic adjustment mechanism. The other end of the three-way pipe is connected to a feed pipe. The end of the feed pipe away from the three-way pipe is connected to a storage tank. The exhaust end of the first negative pressure fan is connected to the crushing chamber.

[0010] Furthermore, the second negative pressure suction assembly includes a discharge hopper, which is fixedly installed at the bottom of the machine body. The discharge hopper is connected to the crushing chamber through the filter assembly. A discharge pipe is fixedly installed at the end of the discharge hopper away from the crushing chamber. A second negative pressure fan is connected to the end of the discharge pipe away from the discharge hopper. A discharge bin is connected to the second negative pressure fan. A discharge port is provided at the bottom of the discharge bin.

[0011] Furthermore, the filter assembly includes a filter mounting bracket, and the inner wall of the machine body is provided with two sets of obliquely symmetrically arranged sliding grooves at the lower part of the crushing chamber. The filter mounting bracket is slidably connected inside the sliding grooves, and a filter is fixedly installed on the filter mounting bracket.

[0012] Furthermore, the saturation detection mechanism includes a second mounting shaft. An oblong hole is provided on the mounting plate along the radial direction of the mounting plate. A sliding frame is slidably connected inside the oblong hole. The automatic adjustment mechanism is drivenly connected to the sliding frame. The two ends of the second mounting shaft are mounted on two sliding frames. Several parallel second crushing blades are rotatably connected to the second mounting shaft. A second limiting ring is installed between two adjacent second crushing blades.

[0013] Furthermore, the automatic adjustment mechanism includes a push rod. A sliding hole is provided on the mounting plate along the radial direction of the mounting plate inside the oblong hole, penetrating the main shaft. The push rod is slidably connected inside the sliding hole. The push rod is fixedly connected to the sliding frame. A spring is fixedly connected to the end of the push rod away from the sliding frame. The end of the spring away from the push rod is fixedly connected to the main shaft. An airflow channel communicating with the sliding hole is provided inside the main shaft along its axial direction. A valve hole is provided on the push rod corresponding to the airflow channel. A dust cover is connected to one end of the airflow channel. The end of the airflow channel away from the dust cover is connected to the three-way pipe.

[0014] Furthermore, a heat-conducting box is installed between each of the two mounting plates and the inner wall of the machine body. A sound-absorbing material layer is firmly bonded to the inner wall of the heat-conducting box. The heat-conducting box is fixedly installed on the machine body. The main shaft is rotatably connected to the heat-conducting box in a sealed manner. A first vent hole communicating with the airflow channel is opened on the outer side of the main shaft at a position inside the heat-conducting box. A second vent hole penetrating the heat-conducting box is opened on the upper part of the machine body. A dust cover is fixedly installed on the machine body at a position corresponding to one of the second vent holes. A connecting pipe is installed on the machine body at a position corresponding to the other second vent hole. The other end of the connecting pipe is connected to the three-way pipe.

[0015] Furthermore, the manual adjustment mechanism includes an air inlet on the discharge hopper, an air duct sealing plate rotatably connected to the discharge hopper corresponding to the air inlet, and an adjustment handle fixedly connected to the air duct sealing plate.

[0016] Furthermore, the side wall of the machine body has symmetrically arranged maintenance ports corresponding to the filter assembly and the pulverizing assembly, and maintenance doors are installed on the machine body corresponding to the maintenance ports.

[0017] Beneficial effects achieved:

[0018] This application, through the cooperation of a saturation detection mechanism and an automatic adjustment mechanism, utilizes a diversion control method based on negative pressure adsorption. This not only automatically adjusts the feed rate according to the material saturation inside the grinding chamber, effectively solving the problem of easy clogging in the grinding device and improving grinding efficiency, but also cleverly utilizes the airflow diverted by negative pressure adsorption to dissipate heat inside the device, ensuring the quality of ultrafine ground feed produced by modern feed processing enterprises. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of one embodiment of this application.

[0020] Figure 2 This is a structural exploded view of one embodiment of this application.

[0021] Figure 3 This is a schematic diagram of the internal structure in the first direction of one embodiment of this application.

[0022] Figure 4 This is a schematic diagram of the internal structure in the second direction of one embodiment of this application.

[0023] Figure 5 This is a schematic diagram of the internal structure in the second direction of one embodiment of this application.

[0024] Figure 6 This is a schematic diagram of the structure of the first negative pressure suction assembly in one embodiment of this application.

[0025] Figure 7 This is a schematic diagram of the structure of the second negative pressure suction assembly in one embodiment of this application.

[0026] Figure 8 yes Figure 4 Enlarged schematic diagram of Part I of the structure.

[0027] Explanation of reference numerals in the attached drawings: 100, machine body; 101, crushing chamber; 102, inspection port; 103, inspection door; 104, frame; 200, crushing assembly; 201, main shaft; 202, mounting plate; 203, drive component; 204, first mounting shaft; 205, first crushing blade; 206, first limiting ring; 300, first negative pressure suction assembly; 301, first negative pressure fan; 302, tee pipe; 303, feed pipe; 304, storage tank; 400, second negative pressure suction assembly; 401, discharge hopper; 402, discharge pipe; 403, second negative pressure fan; 404, discharge bin; 405, discharge port; 500, filter assembly; 501. Filter mounting bracket; 502, slide rail; 503, filter screen; 600, saturation detection mechanism; 601, second mounting shaft; 602, oblong hole; 603, sliding frame; 604, second crushing blade; 605, second limiting ring; 606, threaded hole; 607, limiting post; 700, automatic adjustment mechanism; 701, push rod; 702, sliding hole; 703, spring; 704, airflow channel; 705, valve hole; 706, dust cover; 707, heat conduction box; 708, first vent; 709, second vent; 710, connecting pipe; 800, manual adjustment mechanism; 801, air inlet; 802, air duct sealing plate; 803, adjustment handle. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0029] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] This application discloses an ultrafine grinding device for feed processing.

[0032] Please refer to the above as well. Figures 1 to 8 In one embodiment of this application, a feed processing ultrafine grinding device includes a body 100, which is fixedly mounted on a frame 104. A grinding chamber 101 is provided inside the body 100. A grinding assembly 200 is rotatably connected to the body 100 inside the grinding chamber 101. A first negative pressure suction assembly 300 communicating with the grinding chamber 101 is provided at the top of the body 100. A second negative pressure suction assembly 400 communicating with the grinding chamber 101 is provided at the bottom of the body 100. A filter assembly 500 is provided between the second negative pressure suction assembly 400 and the grinding chamber 101. A saturation detection mechanism 600 is provided on the grinding assembly 200. An automatic adjustment mechanism 700 is provided on the first negative pressure suction assembly 300, which is connected to the saturation detection mechanism 600. A manual adjustment mechanism 800 is provided on the second negative pressure suction assembly 400.

[0033] The implementation principle of the ultrafine grinding device for feed processing in this application is as follows:

[0034] First, the feed raw materials are drawn into the grinding chamber 101 by the first negative pressure suction component 300. Once inside the grinding chamber 101, the feed raw materials are ground by the grinding component 200. The ground material then moves to the second negative pressure suction component 400, passing through the filter component 500. The filter component 500 acts as a screen, intercepting larger particles that do not meet the requirements for ultra-fine grinding, allowing these larger particles to remain inside the grinding chamber 101 and be ground by the grinding component 200. Only materials that meet the ultra-fine grinding standards can pass through the filter component 500. The ultra-finely ground feed, after passing through the filter component 500, is then drawn out of the grinding chamber 101 by the second negative pressure suction component 400, completing the entire grinding process and discharging the feed.

[0035] During operation, the saturation detection mechanism 600 detects the saturation of the feed material inside the grinding chamber 101 by detecting the load of the grinding component 200. When the saturation detection mechanism 600 detects that the grinding component 200 is close to saturation, it will drive the automatic adjustment mechanism 700 to adjust the first negative pressure suction component 300, thereby reducing the feeding speed of the first negative pressure suction component 300. At the same time, a manual adjustment mechanism 800 is set on the second negative pressure suction component 400. The operator can control the working state of the second negative pressure suction component 400 through the manual adjustment mechanism 800, which allows for flexible control of the discharge of the ground material during the equipment commissioning phase or according to the specific discharge requirements of the product.

[0036] This application, through the cooperation of the saturation detection mechanism 600 and the automatic adjustment mechanism 700, can effectively solve the problem of easy clogging of the crushing device, improve the crushing efficiency, and thus meet the needs of modern feed processing enterprises for high-quality ultrafine crushed feed.

[0037] Please refer to the above as well. Figures 1 to 8 In one specific embodiment of this application, the crushing assembly 200 includes a main shaft 201, which is rotatably connected to the machine body 100 and passes through the center of the crushing chamber 101. Two mounting discs 202 symmetrically arranged at both ends of the crushing chamber 101 are fixedly connected to the main shaft 201. A drive component 203 is drivenly connected to one end of the main shaft 201 that passes through the machine body 100. A plurality of annularly distributed first mounting shafts 204 are installed between the two mounting discs 202. The plurality of first mounting shafts 204 and the saturation detection mechanism 600 are evenly distributed annularly on the mounting discs 202. A plurality of parallel first crushing blades 205 are rotatably connected to each of the first mounting shafts 204.

[0038] During operation, the drive unit 203 provides power to the entire crushing assembly 200. The power from the drive unit 203 is transmitted to the main shaft 201 via a transmission connection, causing the main shaft 201 to rotate around an axis passing through the center of the crushing chamber 101 on the machine body 100. The rotation of the main shaft 201 drives the two mounting discs 202 fixed thereon to rotate synchronously. Multiple first mounting shafts 204 mounted between the two mounting discs 202 rotate together with the mounting discs 202. Since several parallel-arranged first crushing blades 205 are rotatably connected to the first mounting shafts 204, the first crushing blades 205 also rotate when the first mounting shafts 204 rotate. When feed raw materials enter the crushing chamber 101, these high-speed rotating first crushing blades 205 cut and impact the feed. The first crushing blades 205 cooperate with each other, and the multiple first crushing blades 205 are arranged side by side on the first mounting shaft 204, and the multiple first mounting shafts 204 are arranged in a ring, so that the feed can be subjected to cutting and impact forces from different directions in the crushing chamber 101, thereby effectively crushing the feed particles.

[0039] Please refer to the above as well. Figures 1 to 8 In one specific embodiment of this application, a first limiting ring 206 is installed between two adjacent first crushing blades 205. The first limiting ring 206 can limit the position of the first crushing blades 205. During the high-speed rotation of the first crushing blades 205, the first limiting ring 206 can prevent the first crushing blades 205 from axial displacement during operation, ensuring the relative stability of the position of the first crushing blades 205, thereby ensuring the stable operation of the crushing process.

[0040] Please refer to the above as well. Figures 1 to 8 In one specific embodiment of this application, the drive component 203 is configured as an electric motor, preferably a three-phase asynchronous motor. Three-phase asynchronous motors are simple in structure, reliable in operation, and easy to maintain. They can provide stable power output and are suitable for long-term operation. For example, the Y90L-2 type three-phase asynchronous motor in the Y series has a power of 2.2kW and a rated speed of approximately 2840r / min, which can provide sufficient power for the feed grinder and is suitable for grinding grain feeds such as corn and wheat.

[0041] Please refer to the above as well. Figures 1 to 8 In one specific embodiment of this application, the first negative pressure suction assembly 300 includes a first negative pressure fan 301, which is installed on the top of the body 100. A three-way pipe 302 is installed at the air inlet end of the first negative pressure fan 301. The vertically upward end of the three-way pipe 302 is connected to the automatic adjustment mechanism 700, and the other end of the three-way pipe 302 is connected to the feed pipe 303. The end of the feed pipe 303 away from the three-way pipe 302 is connected to the storage tank 304. The exhaust end of the first negative pressure fan 301 is connected to the crushing chamber 101.

[0042] During operation, after the first negative pressure fan 301 starts, a pressure difference is generated between its exhaust end and intake end. The exhaust end is connected to the grinding chamber 101, and the intake end is connected to the three-way pipe 302. Due to the operation of the fan, a negative pressure environment is formed at the intake end. This negative pressure environment extends to the storage tank 304 through the feed pipe 303. Under the pressure difference between the external atmospheric pressure and the negative pressure at the three-way pipe 302, the feed in the storage tank 304 is sucked into the feed pipe 303. The feed moves along the feed pipe 303 and the three-way pipe 302 towards the intake end of the first negative pressure fan 301 under the drive of negative pressure. The vertically upward end of the three-way pipe 302 is connected to the automatic adjustment mechanism 700. When the saturation detection mechanism 600 detects that the grinding component 200 is close to saturation, the automatic adjustment mechanism 700 can adjust the feeding speed by changing the size of the opening at the upward end of the three-way pipe 302. If it is necessary to reduce the feed rate, the automatic adjustment mechanism 700 can increase the opening at the upper end, thereby reducing the suction in the feed pipe 303 and reducing the speed at which the feed enters the grinding chamber 101.

[0043] Please refer to the above as well. Figures 1 to 8 In one specific embodiment of this application, the second negative pressure suction assembly 400 includes a discharge hopper 401, which is fixedly installed at the bottom of the machine body 100. The discharge hopper 401 is connected to the crushing chamber 101 through the filter assembly 500. A discharge pipe 402 is fixedly installed at the end of the discharge hopper 401 away from the crushing chamber 101. A second negative pressure fan 403 is connected to the end of the discharge pipe 402 away from the discharge hopper 401. A discharge bin 404 is connected to the second negative pressure fan 403. A discharge port 405 is provided at the bottom of the discharge bin 404.

[0044] During operation, after the second negative pressure fan 403 starts, a negative pressure environment is created in the discharge pipe 402 and the discharge hopper 401. Since the discharge hopper 401 is connected to the grinding chamber 101 and separated by the filter assembly 500, the ultra-finely ground feed in the grinding chamber 101, after grinding and filtering, moves towards the discharge hopper 401 under the action of pressure difference. First, the material in the grinding chamber 101 that meets the ultra-fine grinding standard passes through the filter assembly 500 and enters the discharge hopper 401. Under the negative pressure generated by the second negative pressure fan 403, this material enters the discharge pipe 402 along the discharge hopper 401 and is conveyed to the discharge bin 404. After entering the discharge bin 404, the material is finally discharged from the discharge port 405 at the bottom of the discharge bin 404. The discharge port 405 can be used for corresponding discharge operations as needed, such as connecting packaging bags, conveying equipment, etc., to further package, store, or process the ultra-finely ground feed.

[0045] Please refer to the above as well. Figures 1 to 8In one specific embodiment of this application, the filter assembly 500 includes a filter mounting bracket 501. The inner wall of the body 100 is provided with two sets of obliquely symmetrically arranged sliding grooves 502 at the lower part of the crushing chamber 101. The filter mounting bracket 501 is slidably connected inside the sliding grooves 502, and a filter 503 is fixedly installed on the filter mounting bracket 501.

[0046] During operation, when the material in the crushing chamber 101 moves towards the second negative pressure suction component 400 after being crushed, the material will first come into contact with the filter component 500.

[0047] When the material passes through the filter screen 503, since the mesh size of the filter screen 503 is set according to the requirements of ultrafine grinding, only fine particles that meet the ultrafine grinding standard can pass through the filter screen 503, while larger particles will be intercepted above the filter screen 503.

[0048] The filter mounting bracket 501 is slidably connected to a groove 502 on the inner wall of the body 100. This obliquely symmetrically arranged groove 502 allows the filter mounting bracket 501 to slide within a certain range. When it is necessary to clean or replace the filter 503, the filter mounting bracket 501 can be slid out of the groove 502, making it convenient for operators to operate the filter 503.

[0049] Please refer to the above as well. Figures 1 to 8 In one specific embodiment of this application, the saturation detection mechanism 600 includes a second mounting shaft 601. A waist-shaped hole 602 is provided on the mounting plate 202 along the radial direction of the mounting plate 202. A sliding frame 603 is slidably connected inside the waist-shaped hole 602. An automatic adjustment mechanism 700 is drivenly connected to the sliding frame 603. The two ends of the second mounting shaft 601 are mounted on two sliding frames 603. A plurality of second crushing blades 604 arranged in parallel are rotatably connected to the second mounting shaft 601. A second limiting ring 605 is installed between two adjacent second crushing blades 604.

[0050] During operation, the two ends of the second mounting shaft 601 are mounted on two sliding brackets 603, which are slidably connected inside the oblong holes 602 on the mounting plate 202. This means that the second mounting shaft 601 can move radially within the oblong holes 602 via the sliding brackets 603.

[0051] A number of parallel second crushing blades 604 are rotatably connected to the second mounting shaft 601. When the driving component 203 drives the main shaft 201 and the mounting plate 202 to rotate, under the action of centrifugal force, the sliding frame 603, the second mounting shaft 601, and the second crushing blades 604 move along the radial direction of the mounting plate 202 away from the center of the mounting plate 202, thereby driving the second crushing blades 604 to cooperate with the first crushing blade 205 to crush the feed in the crushing chamber 101.

[0052] During the grinding process, when the amount of feed in the grinding chamber reaches a certain level, it will generate greater resistance to the rotation of the second grinding blade 604, thereby overcoming the centrifugal force on the second grinding blade 604. This causes the second grinding blade 604 to move radially towards the center of the mounting plate 202. Since the sliding frame 603 is connected to the second grinding blade 604 through the second mounting shaft 601, the position of the sliding frame 603 within the oblong hole 602 will change. The change in the position of the sliding frame 603 can indirectly reflect the saturation of the material in the grinding chamber 101, thus realizing the detection of the saturation of the material in the grinding chamber 101.

[0053] Please refer to the above as well. Figures 1 to 8 In one specific embodiment of this application, the automatic adjustment mechanism 700 includes a push rod 701. A sliding hole 702 is provided on the mounting plate 202, located inside the waist-shaped hole 602, along the radial direction of the mounting plate 202, penetrating the main shaft 201. The push rod 701 is slidably connected inside the sliding hole 702. The push rod 701 is fixedly connected to the sliding frame 603. A spring 703 is fixedly connected to the end of the push rod 701 away from the sliding frame 603. The end of the spring 703 away from the push rod 701 is fixedly connected to the main shaft 201. An airflow channel 704 communicating with the sliding hole 702 is provided inside the main shaft 201 along its axial direction. A valve hole 705 is provided on the push rod 701 corresponding to the airflow channel 704. A dust cover 706 is connected to one end of the airflow channel 704. The end of the airflow channel 704 away from the dust cover 706 is connected to the three-way pipe 302.

[0054] During operation, when the saturation of the material in the crushing chamber 101 changes, causing the sliding frame 603 to move along the oblong hole 602, it will drive the push rod 701 to move within the sliding hole 702. One end of the spring 703 is fixed to the main shaft 201, and the other end is fixed to the push rod 701. Under normal circumstances, the spring 703 applies a certain elastic force to the push rod 701, keeping the valve hole 705 on the push rod 701 aligned with the airflow channel 704. During the crushing process, when the sliding frame 603 moves under centrifugal force, it stretches the spring 703, thereby changing the position of the valve hole 705 relative to the airflow channel 704, thus affecting the airflow rate within the airflow channel 704. One end of the airflow channel 704 is connected to the dust cover 706, and the other end is connected to the three-way pipe 302. By changing the position of the valve hole 705, the airflow size and direction within the airflow channel 704 can be adjusted, thereby affecting the air pressure inside the feed pipe 303 connected to the three-way pipe 302.

[0055] During the crushing process, when the material inside the crushing chamber 101 is less than the material saturation, the sliding frame 603 will move to the outermost end under the action of centrifugal force. The valve hole 705 will be misaligned with the airflow channel 704, so the push rod 701 will block the airflow channel 704, thereby increasing the suction inside the feed pipe 303, which will increase the feeding speed. When the material inside the crushing chamber 101 is equal to or greater than the material saturation, it will cause material accumulation. The accumulated material will push the sliding frame 603 in the opposite direction to counteract the centrifugal force. The sliding frame 603 will then retract to the position where the valve hole 705 intersects with the airflow channel 704 under the action of the spring 703. The push rod 701 will then connect the airflow channel 704, allowing external air to enter the first negative pressure fan 301 through the dust cover 706, the airflow channel 704, and the three-way pipe 302. On the one hand, the entry of external air can reduce the suction inside the feed pipe 303, thereby reducing the feeding speed; on the other hand, the external air can also carry away the heat generated by the crushing component 200 during operation through the airflow channel 704, which is beneficial for cooling the crushing component 200.

[0056] Please refer to the above as well. Figures 1 to 8 In one specific embodiment of this application, a heat-conducting box 707 is installed between each of the two mounting plates 202 and the inner sidewall of the body 100. A sound-absorbing material layer is fixedly bonded to the inner sidewall of the heat-conducting box 707. The heat-conducting box 707 is fixedly installed on the body 100. The main shaft 201 is sealed and rotatably connected to the heat-conducting box 707. A first vent hole 708 communicating with the airflow channel 704 is opened on the outer side of the main shaft 201 inside the heat-conducting box 707. A second vent hole 709 penetrating the heat-conducting box 707 is opened on the upper part of the body 100. A dust cover 706 is fixedly installed on the body 100 at a position corresponding to one of the second vent holes 709. A connecting pipe 710 is installed on the body 100 at a position corresponding to the other second vent hole 709. The other end of the connecting pipe 710 is connected to the three-way pipe 302.

[0057] During operation, a first vent 708 is provided on the outer side of the spindle 201, located inside the heat-conducting box 707. The first vent 708 communicates with the airflow channel 704 inside the spindle 201. A second vent 709 is provided on the machine body 100, penetrating the heat-conducting box 707. (The text abruptly ends here.) Figure 3 As shown by the arrows, external air can sequentially pass through the dust cover 706, the second vent 709 near the dust cover 706, the heat-conducting box 707 near the dust cover 706, the first vent 708 near the dust cover 706, the airflow channel 704, the first vent 708 near the connecting pipe 710, the heat-conducting box 707 near the connecting pipe 710, the second vent 709 near the connecting pipe 710, and the connecting pipe 710 to enter the interior of the three-way pipe 302.

[0058] The heat-conducting box 707 is installed between the mounting plate 202 and the inner wall of the machine body 100. When the crushing assembly 200 is working, the high-speed rotation of components such as the mounting plate 202, the main shaft 201, the first crushing blade 205, and the second crushing blade 604 generates heat, which is transferred to the heat-conducting box 707. The heat-conducting box 707 plays the role of conducting heat away, which helps to further improve the heat dissipation effect inside the crushing chamber 101 and avoids the feed quality or equipment performance being affected by excessive temperature.

[0059] The sound-absorbing material layer bonded to the inner wall of the heat-conducting box 707 can effectively absorb the noise generated during the crushing process. When the first crushing blade 205 and the second crushing blade 604 cut and impact the feed, and when friction occurs between the components, the sound-absorbing material layer will convert some of the noise energy into heat energy or other forms of energy, thereby reducing the noise level generated during equipment operation.

[0060] In one specific embodiment of this application, the sound-absorbing material layer uses materials with good sound absorption properties, such as glass fiber, rock wool, and polyurethane foam. These materials have a large number of micropores inside. When sound waves generated by the equipment operation enter the sound-absorbing material layer, the sound propagates in the micropores inside the material. Air molecules rub against the fibers or foam walls of the sound-absorbing material in the pores. At the same time, due to the air vibration caused by the sound, the air molecules also have a sticking effect. These friction and sticking effects convert sound energy into heat energy, thus gradually attenuating the sound energy. The sound-absorbing material layer is fixed to the inner wall of the heat-conducting box 707 by adhesive bonding. This installation method ensures that the sound-absorbing material is tightly attached to the heat-conducting box 707, avoiding gaps that would affect the sound absorption effect. Furthermore, the adhesive bonding method is relatively simple and easy to operate during equipment assembly.

[0061] Please refer to the above as well. Figures 1 to 8 In one specific embodiment of this application, a threaded hole 606 is provided on the mounting plate 202 at one end of the sliding bracket 603 located inside the waist-shaped hole 602, away from the center of the mounting plate 202. A limit post 607 is threadedly connected to the mounting plate 202 through the threaded hole 606.

[0062] During operation, when the sliding frame 603 slides within the oblong hole 602, the limiting post 607 is threadedly connected to the mounting plate 202 via the threaded hole 606 and is located at the end of the sliding frame 603 furthest from the center of the mounting plate 202. As the sliding frame 603 slides further away from the center of the mounting plate 202, it eventually contacts the limiting post 607. At this point, the limiting post 607 prevents the sliding frame 603 from sliding further in that direction, thus limiting the range of movement of the sliding frame 603 within the oblong hole 602. The operator can change the extension length of the limiting post 607 on the mounting plate 202 by rotating it, utilizing the characteristics of the threaded connection. When the limiting post 607 is rotated further outward from the mounting plate 202, the sliding distance of the sliding frame 603 increases relatively; conversely, when the limiting post 607 is rotated further inward from the mounting plate 202, the sliding distance of the sliding frame 603 decreases relatively. This allows for adjustment of the degree of intersection between the valve orifice 705 and the airflow channel 704, thereby determining the airflow required to ensure heat dissipation during normal operation of the pulverizing device.

[0063] Please refer to the above as well. Figures 1 to 8 In one specific embodiment of this application, the manual adjustment mechanism 800 includes an air inlet 801 opened on the discharge hopper 401, an air duct sealing plate 802 rotatably connected to the discharge hopper 401 corresponding to the air inlet 801, and an adjustment handle 803 fixedly connected to the air duct sealing plate 802.

[0064] During operation, when the second negative pressure suction component 400 is working, a negative pressure exists within the discharge hopper 401, sucking out the crushed and filtered feed from the crushing chamber 101. The air inlet 801 is open to the outside atmosphere, and the air duct sealing plate 802 is rotatably connected to the discharge hopper 401 at the position corresponding to the air inlet 801. When the operator rotates the adjusting handle 803, it will cause the air duct sealing plate 802 to rotate. During the rotation of the air duct sealing plate 802, the opening degree of the air inlet 801 changes. The change in the opening degree of the air inlet 801 affects the amount of air entering the discharge hopper 401, thus changing the negative pressure within the discharge hopper 401. The change in negative pressure affects the feed discharge speed and flow rate.

[0065] When the air duct sealing plate 802 rotates, increasing the opening of the air inlet 801, more air enters the discharge hopper 401, reducing the negative pressure inside the discharge hopper 401 and slowing down the feed discharge speed; conversely, when the opening of the air inlet 801 decreases, the negative pressure inside the discharge hopper 401 increases, and the feed discharge speed speed increases.

[0066] Please refer to the above as well. Figures 1 to 8 In one specific embodiment of this application, the side wall of the body 100 is provided with symmetrically arranged maintenance ports 102 corresponding to the filter assembly 500 and the pulverizing assembly 200, and a maintenance door 103 is installed on the body 100 corresponding to the maintenance ports 102.

[0067] During operation, when the filter assembly 500 or the pulverizing assembly 200 malfunctions, requires maintenance, or needs parts replacement, the maintenance door 103 can be opened, allowing maintenance personnel to operate the corresponding assembly through the maintenance port 102. For example, if the filter screen 503 is clogged and needs cleaning, the maintenance door 103 on the corresponding side of the filter assembly 500 can be opened, and the filter screen mounting bracket 501 can be slid out of the slide groove 502 for cleaning through the maintenance port 102; if the first pulverizing blade 205 or the second pulverizing blade 604 in the pulverizing assembly 200 is worn, the maintenance door 103 on the corresponding side of the pulverizing assembly 200 can be opened to replace the first pulverizing blade 205 or the second pulverizing blade 604, and so on.

[0068] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A feed processing ultrafine grinding device, characterized in that: The machine includes a body, inside which is a grinding chamber. A grinding assembly rotatably connected to the machine body is located inside the grinding chamber. A first negative pressure suction assembly communicating with the grinding chamber is located at the top of the machine body, and a second negative pressure suction assembly communicating with the grinding chamber is located at the bottom of the machine body. A filter assembly is disposed between the second negative pressure suction assembly and the grinding chamber. A saturation detection mechanism is provided on the grinding assembly. An automatic adjustment mechanism is provided on the first negative pressure suction assembly, connected to the saturation detection mechanism. A manual adjustment mechanism is provided on the second negative pressure suction assembly. The grinding assembly includes a main shaft rotatably connected to the machine body at a position passing through the center of the grinding chamber. Two mounting plates symmetrically arranged at both ends of the grinding chamber are fixedly connected to the main shaft. The first negative pressure suction assembly includes a first negative pressure fan, mounted on the top of the machine body. A three-way pipe is installed at the air inlet of the first negative pressure fan. One vertically upward end of the three-way pipe is connected to the automatic adjustment mechanism, and the other end of the three-way pipe is connected to... The feed pipe; the saturation detection mechanism includes a second mounting shaft, an oblong hole is formed on the mounting plate along the radial direction of the mounting plate, a sliding frame is slidably connected inside the oblong hole, the automatic adjustment mechanism is drivenly connected to the sliding frame, the two ends of the second mounting shaft are mounted on two sliding frames, a plurality of parallel second crushing blades are rotatably connected to the second mounting shaft, and a second limiting ring is installed between two adjacent second crushing blades; the automatic adjustment mechanism includes a push rod, a sliding hole is formed on the mounting plate along the radial direction of the mounting plate inside the oblong hole, penetrating the main shaft, the push rod is slidably connected inside the sliding hole, the push rod is fixedly connected to the sliding frame, a spring is fixedly connected to the end of the push rod away from the sliding frame, the end of the spring away from the push rod is fixedly connected to the main shaft, an airflow channel communicating with the sliding hole is formed on the main shaft along its axial direction, a valve hole is formed on the push rod corresponding to the airflow channel, a dust cover is connected to one end of the airflow channel, and the end of the airflow channel away from the dust cover is connected to the three-way pipe.

2. The feed processing ultrafine grinding device according to claim 1, characterized in that: One end of the main shaft that passes through the machine body is connected to a drive component. Multiple annularly distributed first mounting shafts are installed between the two mounting discs. The multiple first mounting shafts and the saturation detection mechanism are evenly distributed annularly on the mounting discs. Several parallel first crushing blades are rotatably connected to each of the first mounting shafts. A first limiting ring is installed between two adjacent first crushing blades.

3. The feed processing ultrafine grinding device according to claim 1, characterized in that: The end of the feed pipe away from the tee pipe is connected to a storage tank, and the exhaust end of the first negative pressure fan is connected to the crushing chamber.

4. The feed processing ultrafine grinding device according to claim 1, characterized in that: The second negative pressure suction assembly includes a discharge hopper, which is fixedly installed at the bottom of the machine body. The discharge hopper is connected to the crushing chamber through the filter assembly. A discharge pipe is fixedly installed at the end of the discharge hopper away from the crushing chamber. A second negative pressure fan is connected to the end of the discharge pipe away from the discharge hopper. A discharge bin is connected to the second negative pressure fan. A discharge port is provided at the bottom of the discharge bin.

5. The feed processing ultrafine grinding device according to claim 1, characterized in that: The filter assembly includes a filter mounting bracket. The inner wall of the machine body has two sets of obliquely symmetrically arranged sliding grooves located at the lower part of the crushing chamber. The filter mounting bracket is slidably connected inside the sliding grooves, and a filter is fixedly installed on the filter mounting bracket.

6. The feed processing ultrafine grinding device according to claim 1, characterized in that: A heat-conducting box is installed between each of the two mounting plates and the inner wall of the machine body. A sound-absorbing material layer is firmly bonded to the inner wall of the heat-conducting box. The heat-conducting box is fixedly installed on the machine body. The main shaft is rotatably connected to the heat-conducting box in a sealed manner. A first vent hole communicating with the airflow channel is opened on the outer side of the main shaft at a position inside the heat-conducting box. A second vent hole penetrating the heat-conducting box is opened on the machine body. A dust cover is fixedly installed on the machine body at a position corresponding to one of the second vent holes. A connecting pipe is installed on the machine body at a position corresponding to the other second vent hole. The other end of the connecting pipe is connected to the three-way pipe.

7. The feed processing ultrafine grinding device according to claim 4, characterized in that: The manual adjustment mechanism includes an air inlet on the discharge hopper, an air duct sealing plate rotatably connected to the discharge hopper corresponding to the air inlet, and an adjustment handle fixedly connected to the air duct sealing plate.

8. A feed processing ultrafine grinding device according to any one of claims 1-7, characterized in that: The side wall of the machine body has symmetrically arranged maintenance ports corresponding to the filter assembly and the pulverizing assembly, and maintenance doors are installed on the machine body corresponding to the maintenance ports.

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