A high-efficiency cooled disc mill

Abstract

The application relates to a high-efficiency cooling disc mill, which comprises a rack, a machine shell fixed on the rack, a grinding cavity formed in the machine shell, a discharge port arranged below the grinding cavity, a movable grinding disc arranged in the grinding cavity and capable of rotating and moving axially, and a wind cooling channel arranged in the machine shell and used for diffusing heat generated by the movable grinding disc outward through the wind cooling channel; the disc mill is characterized in that the wind cooling channel is arranged in the machine shell, and a cooling piece is arranged on a machine cover, so that the heat generated by the two grinding discs during work can be timely taken away through the wind cooling and water cooling modes, the accuracy of sample detection can be avoided from being affected by heat accumulation, meanwhile, the equipment can continuously work for a long time without temperature rise, the production efficiency is greatly improved, and in actual work, a plurality of independent or combined refrigeration modes such as natural water cooling, refrigerated water cooling, natural air cooling or refrigerated air cooling can be flexibly selected according to requirements, and the applicability and reliability of the equipment are further improved.

Description

Technical Field

[0001] This application relates to the field of crushing and grinding mill technology, and in particular to a highly efficient cooled disc mill. Background Technology

[0002] A disc mill is a device specifically designed for sample pretreatment, primarily used in sample preparation for moisture detection and other temperature-sensitive tests. This equipment is widely applicable to the pulverization of samples such as grains and feed that require testing. Existing disc mills generally use a pair of precision multi-tooth grinding discs to pulverize samples, mainly through shearing action. This reduces the excessive heat generated by impact or compression during the grinding process of traditional equipment, effectively minimizing component volatilization or changes caused by temperature rise, and thus improving the accuracy and reliability of test results to a certain extent.

[0003] However, existing disc mills still have the following shortcomings: First, although shear grinding can reduce heat, heat still accumulates on the grinding discs during prolonged grinding, causing the equipment to lose its ability to continuously and stably grind samples, thus reducing production efficiency and affecting the accuracy of sample testing. Second, existing disc mills typically use two grinding discs to grind samples, but the gap between them is not easily adjustable, the adjustment structure is relatively complex, and operation is difficult. Furthermore, existing mills usually have sample cups below the discharge port for collecting powder; due to insufficient sealing, powder is prone to splashing and escaping during its descent, resulting in some sample loss and increasing the workload of equipment cleaning. Utility Model Content

[0004] To address the problems mentioned in the background art, such as heat accumulation affecting production efficiency and sample testing accuracy, inconvenient adjustment of grinding disc gap, and poor sealing during material collection, this application provides a highly efficient cooling disc mill.

[0005] The disc mill with high-efficiency cooling provided in this application adopts the following technical solution: A highly efficient cooling disc mill includes a frame, a housing fixed on the frame, a grinding chamber formed inside the housing, a discharge port below the grinding chamber, a rotatable and axially movable grinding disc inside the grinding chamber, and an air-cooling channel inside the housing for dissipating the heat generated by the movable grinding disc during operation to the outside through the air-cooling channel. The end of the housing is movably connected to a cover, and a fixed grinding disc is installed on the inner side of the cover. The fixed grinding disc is arranged opposite to the movable grinding disc. Cooling components are provided on the cover, housing, and / or frame to dissipate the heat generated by the fixed grinding disc during operation.

[0006] By adopting the above technical solution, a cooling structure is first used to install cooling components on the cover, housing, and / or frame. Water cooling circulation is used to remove the heat generated by the fixed grinding disc and housing during operation, thereby reducing their temperature. At the same time, an air-cooling channel is also set inside the housing to remove the heat from the moving grinding disc using air circulation. This solves the problem of excessively high temperature of the moving grinding disc during operation and prevents the moisture inside the sample from evaporating due to excessive temperature of the two grinding discs, which is beneficial to the accuracy of subsequent sample moisture detection.

[0007] Optionally, a partition is provided inside the housing, the grinding chamber and the air-cooling channel are located on both sides of the partition, a heat-conducting plate is connected to the end of the movable grinding disc, one end of the heat-conducting plate extends through the partition into the air-cooling channel, a heat diffusion component is provided inside the air-cooling channel, and an air outlet and an air inlet are respectively opened on the side wall of the housing.

[0008] By adopting the above technical solution, the heat conduction plate can conduct the heat generated by the moving grinding disc during operation, so that the heat is conducted to the air-cooling channel, and then the heat diffusion component in the air-cooling channel is used to remove the heat, so that the hot air is discharged from the air outlet on the casing. The air inlet on the casing is used to introduce natural air or treated cold air to improve the air-cooling effect.

[0009] Optionally, the grinding chamber has an annular structure, the outer edge of the heat-conducting disk extends toward the inner wall of the grinding chamber, and the edge of the heat-conducting disk is provided with a scraping part.

[0010] By adopting the above technical solution, since the movable grinding disc rotates relative to the fixed grinding disc during operation, the teeth between the two grinding discs are used to perform shearing powder grinding on the material. As a result, some material will be attached to the inner wall of the grinding chamber as the fixed grinding disc rotates. By setting a scraper on the edge of the heat-conducting plate, the material attached to the inner wall of the grinding chamber can be scraped off and discharged from the lower outlet, thus avoiding the accumulation of material in the grinding chamber.

[0011] Optionally, the cooling component is a water-cooled tank with an annular recessed structure, which is opened on the cover, housing and / or frame. A sealing ring is installed on the outside of the water-cooled tank, and an inlet pipe and an outlet pipe are respectively installed on the sealing ring. The ends of the inlet pipe and the outlet pipe are connected to a refrigeration system. Alternatively, the cooling component may be a liquid cooling head or liquid cooling plate mounted on the cover, housing, and / or frame, and the liquid cooling head or liquid cooling plate may be connected to the refrigeration system.

[0012] By adopting the above technical solution, the annular water-cooling tank is correspondingly set at the end position where the fixed grinding disc is installed on the cover, or installed on the casing and / or frame. This can better conduct the heat generated by the fixed grinding disc during operation through the cover and then be carried away by the liquid in the water-cooling tank. The sealing ring is used to block and seal the open end of the water-cooling tank, so that the refrigerant forms a closed annular cavity inside the cover, preventing the refrigerant from flowing out.

[0013] Optionally, a main shaft is connected to the center of the movable grinding disc, the main shaft is connected to a motor via a coupling, and the motor is connected to a water-cooling structure; It also includes an adjustment mechanism for driving the spindle and the movable grinding disc to move axially, the adjustment mechanism being used to adjust the distance between the movable grinding disc and the fixed grinding disc.

[0014] By adopting the above technical solution, an electric motor can be used as a power source, which is transmitted to the main shaft through a coupling, causing the main shaft to rotate and thus drive the movable grinding disc to work. The adjustment mechanism can adjust the distance between the movable grinding disc and the fixed grinding disc to meet the grinding particle size requirements of different materials.

[0015] Optionally, the adjustment mechanism includes a guide sleeve fixed to the end of the housing, the main shaft is connected to a bearing sleeve via a bearing, the bearing sleeve is disposed in the central hole of the guide sleeve and the bearing sleeve is threadedly engaged with the guide sleeve, and the bearing sleeve is connected to a rotary drive device for driving the bearing sleeve to rotate, configured so that when the bearing sleeve rotates, the bearing sleeve moves axially within the guide sleeve and drives the main shaft and the movable grinding disc to move axially.

[0016] By adopting the above technical solution, a bearing sleeve that can move axially and is threadedly engaged with the guide sleeve is set up. This can provide radial positioning for the spindle and allow the bearing sleeve to move axially relative to the guide sleeve after rotation. When the bearing sleeve moves axially, it drives the axial movement of the movable grinding disc, thereby achieving the effect of adjusting the gap between the two grinding discs.

[0017] Optionally, the rotary drive device includes a driven wheel mounted on a bearing sleeve and synchronously connected to the bearing sleeve. A rotatable adjusting rod is mounted on the frame. One end of the adjusting rod extends to the outside of the frame and is connected to an adjusting handle. The other end of the adjusting rod is connected to a driving wheel. The driving wheel and the driven wheel are connected through a conveyor belt. A tensioning assembly for tensioning the conveyor belt is mounted on the frame.

[0018] By adopting the above technical solution, during the adjustment of the distance between the two grinding discs, rotating the adjusting handle drives the adjusting rod to rotate, which in turn rotates the drive wheel. Power is then transmitted through the conveyor belt and driven wheel to ultimately rotate the bearing sleeve, thus achieving the effect of adjusting the distance between the two grinding discs. Positioning the adjusting handle outside the frame improves the ease of operation for users, making it simple to use.

[0019] Optionally, a cover plate is provided below the housing. The surface of the cover plate has a discharge channel that communicates with the discharge port. An elastic support device for installing a receiving cylinder is provided below the cover plate. There is an installation gap between the elastic support device and the cover plate. The top edge of the receiving cylinder has an outwardly extending flange. When the receiving cylinder is installed on the elastic support device, the receiving cylinder is conveniently placed within the installation gap, and the upper end of the receiving cylinder can reliably fit with the cover plate, allowing the material to fall into the receiving cylinder.

[0020] By adopting the above technical solution, the receiving cylinder can be installed on the elastic support device. The elastic support device can position the receiving cylinder and lift it upward, so that it can be reliably fitted with the cover plate, which facilitates the sealed collection of materials.

[0021] Optionally, the elastic support device includes two symmetrically arranged elastic elements. The middle part of the two elastic elements forms a limiting area for radially limiting the receiving cylinder. The outer ends of the two elastic elements form open portions, through which the receiving cylinder can enter the limiting area. The upper surface of the elastic elements is provided with a protruding support portion.

[0022] By adopting the above technical solution, the elastic element has a certain ability to deform under force, which makes it easy for the receiving cylinder to enter the limiting area between the two elastic elements from the open part, so as to realize the installation and positioning of the receiving cylinder. At the same time, the supporting part of the elastic element can provide an upward force to the receiving cylinder, so that the receiving cylinder fits with the cover plate and avoids gaps between the cover plate and the receiving cylinder, which would cause the powder to spread outward.

[0023] Optionally, a sealing ring is installed below the cover plate, and when the receiving cylinder is installed on the elastic support device, the upper end of the receiving cylinder is tightly fitted with the sealing ring.

[0024] By adopting the above technical solution, the sealing performance between the receiving cylinder and the cover plate can be further improved by using the sealing ring after installation, so that the sealing ring fits tightly with the receiving cylinder and the sealing effect is better.

[0025] Optionally, a feed pipe is installed on the machine cover, and the inner cavity of the feed pipe is connected to the area between the fixed grinding disc and the movable grinding disc.

[0026] By adopting the above technical solution, the material can pass through the center of the machine cover and the fixed grinding disc in sequence from the feed pipe, and finally enter the area between the two grinding discs for grinding.

[0027] In summary, this application includes at least one of the following beneficial technical effects: This invention features an air-cooling channel inside the casing and cooling components on the cover, which can effectively remove the heat generated by the two grinding discs during operation through air cooling and water cooling respectively. This avoids the impact of heat accumulation on the accuracy of sample testing. At the same time, the equipment can operate continuously for a long time without heating up, greatly improving production efficiency. Furthermore, in actual operation, various independent or combined cooling methods such as natural water cooling, cooling water cooling, natural air cooling, or cooling air cooling can be flexibly selected according to needs, further enhancing the applicability and reliability of the equipment.

[0028] This utility model features a structure with a cover plate and an elastic element below the discharge port. The elastic element can be used to position and seal the receiving cylinder, enabling quick and accurate connection between the receiving cylinder and the discharge port. This not only ensures the sealing of the collection process and prevents powder from splashing or escaping during the fall, reducing sample loss, but also simplifies the installation and disassembly steps of the receiving cylinder, significantly improving work efficiency.

[0029] This invention enables the bearing sleeve to rotate while the adjustment handle is rotated, and through the threaded fit between the guide sleeve and the bearing sleeve, the bearing sleeve, main shaft and movable grinding disc can move axially to achieve the effect of adjusting the distance between the two grinding discs, making the distance adjustment process simpler, more stable and reliable. Attached Figure Description

[0030] Figure 1 This is a perspective view of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a partial sectional view of the present invention; Figure 4 This utility model is an explosion-viewing device. Figure 1 ; Figure 5 This utility model is an explosion-viewing device. Figure 2 ; Figure 6 This is a cross-sectional view of the casing of this utility model; Figure 7 This is an exploded view of the docking position of the receiving cylinder of this utility model; Figure 8 This is a perspective view of the elastic support device of this utility model; Figure 9 This is a side view of the connection between the elastic support device and the cover plate of this utility model.

[0031] Explanation of reference numerals in the attached figures: 1. Frame; 2. Housing; 201. Grinding chamber; 202. Partition; 203. Discharge port; 204. Air outlet; 205. Air-cooled channel; 206. Air inlet; 3. Heat diffuser; 4. Heat transfer plate; 5. Movable grinding disc; 6. Fixed grinding disc; 7. Machine cover; 701. Water cooling tank; 8. Feed pipe; 9. Sealing ring; 10. Motor; 11. Coupling; 12. Driven wheel; 13. Guide sleeve; 14. Bearing sleeve; 15. Main shaft; 16. Adjusting handle; 17. Adjusting rod; 18. Drive wheel; 19. Conveyor belt; 20. Tensioner wheel; 21. Connecting rod; 22. Radiator; 23. First pump body; 24. Second pump body; 25. Semiconductor cooler; 26. Cover plate; 2601. Discharge channel; 27. Sealing ring; 28. Elastic element; 2801. Fixed end; 2802. Limiting area; 2803. Arc-shaped part; 2804. Opening part; 2805. Movable end; 2806. Support part; 29. ​​Receiving cylinder; 2901. Flanged edge; 30. Installation gap. Detailed Implementation

[0032] The present application will be further described in detail below with reference to the accompanying drawings.

[0033] This application discloses a highly efficient cooling disc mill, including a frame 1. The frame 1 is a frame structure assembled from square tubes, square steel, angle iron, or aluminum alloy profiles combined with sheet metal. A housing 2 is fixed on the frame 1. A grinding chamber 201 is formed inside the housing 2. A discharge port 203 is provided below the grinding chamber 201. A rotatable and axially movable grinding disc 5 is provided inside the grinding chamber 201. An air-cooling channel 205 is provided inside the housing 2 to dissipate the heat generated by the movable grinding disc 5 during operation. A cover 7 is movably connected to the end of the housing 2. A fixed grinding disc 6 is installed inside the cover 7. The fixed grinding disc 6 and the movable grinding disc 5 are arranged opposite each other. The opposite arrangement means that the toothed sides of the two grinding discs face each other. When the movable grinding disc 5 rotates, the shearing force of the grinding disc is used to shear and grind the material. The ground material falls from between the two grinding discs into the outside of the grinding discs and is finally discharged from the discharge port 203. Cooling components are provided on the cover 7, housing 2 and / or frame 1 to dissipate the heat generated by the fixed grinding disc 6 during operation.

[0034] A feed pipe 8 is installed on the cover 7. The inner cavity of the feed pipe 8 connects to the area between the fixed grinding disc 6 and the movable grinding disc 5. Specifically, in this example, a screw feeder and a hopper are also provided above the feed pipe 8. After the material is put into the hopper, the falling speed of the material can be controlled by the screw feeder. Both the cover 7 and the fixed grinding disc 6 have a central hole. The inner cavity of the feed pipe 8 is connected to the area between the two grinding discs through the central hole. The material passes through the cover 7 and the fixed grinding disc 6 sequentially from the feed pipe 8 and finally enters the area between the two grinding discs. When the movable grinding disc 5 rotates, the material can be ground. In this example, the cover 7 is hinged to the end of the housing 1 by a pin. After the cover 7 is closed, it can be tightly closed to the housing 1 by a latch or other locking method.

[0035] In this example, a partition 202 is provided inside the housing 2. The partition 202 is integrally formed with the housing 2. The partition 202 extends from the inner wall of the housing 2 towards the center of the housing 2 to form a ring structure, which can be used to prevent materials in the grinding chamber 201 from entering the air-cooling channel 205. The grinding chamber 201 and the air-cooling channel 205 are located on both sides of the partition 202. A heat-conducting plate 4 is connected to the end of the movable grinding disc 5. The heat-conducting plate 4 is made of a high thermal conductivity material, such as aluminum alloy or copper alloy, and is used to conduct the heat generated by the movable grinding disc 5 during operation. One end of the heat-conducting plate 4 passes through... The partition 202 extends into the air-cooling channel 205, allowing heat to be conducted into the air-cooling channel 205. The air-cooling channel 205 is equipped with a heat diffuser 3. An air outlet 204 and an air inlet 206 are respectively opened on the side wall of the casing 2. Specifically, in this example, the heat diffuser 3 is an impeller, which is bolted to the heat-conducting plate 4 and rotates together with the heat-conducting plate 4 and the movable grinding plate 5. In other embodiments, the heat diffuser can also be a multi-fin structure, porous structure, array column structure, honeycomb structure, etc., made of other heat-conducting materials, mainly to achieve rapid heat diffusion.

[0036] It is understood that in other embodiments, the heat diffuser 3 can also be connected to the main shaft 15, which can also play a role in airflow. In this example, the air outlet 204 is located above the housing 2 and the air inlet 206 is located below the housing 2. When the heat diffuser 3 rotates, natural wind or cooled wind enters the air-cooling channel 205 from the air inlet 206, carrying away the heat from the heat conduction plate 4 and exporting it from the air outlet 204.

[0037] In this example, the grinding chamber 201 has an annular structure, the outer edge of the heat-conducting disk 4 extends toward the inner wall of the grinding chamber 201, and the edge of the heat-conducting disk 4 is provided with a scraping part. Specifically, the scraping part is a cylindrical rod or plate structure fixed to the edge of the heat-conducting disk 4 and extending axially. It mainly scrapes the material adhering to the inner wall of the grinding chamber 201 when the heat-conducting disk 4 rotates, so as to avoid accumulation.

[0038] In this example, the cooling component is a water-cooling tank 701 with an annular recessed structure, located on the cover 7, housing 2, and / or frame 1. Alternatively, the water-cooling tank can have a serpentine structure, a vortex-shaped structure, or a flow channel structure with hot and cold convection design. In this example, the water-cooling tank 701 is positioned on the cover 7, corresponding to the fixed grinding disc 6 at the other end of the cover 7, to improve water cooling efficiency. A sealing ring 9 is installed on the outer side of the water-cooling tank 701, and an inlet pipe and an outlet pipe are respectively installed on the sealing ring 9. The ends of the inlet and outlet pipes are connected to a refrigeration system. In this example, the refrigeration system mainly includes a radiator 22, a first pump body 23, a second pump body 24, and a semiconductor cooler 25. The first pump body 23 guides water from the cold end of the semiconductor cooler 25... The low-temperature refrigerant is introduced into the water-cooling tank 701 through the inlet pipe. After heat exchange in the water-cooling tank 701, the refrigerant with increased temperature enters the semiconductor cooler 25 through the outlet pipe, forming a cooling cycle. The second pump body 24 is connected to the hot end of the semiconductor cooler 25 through a pipe, allowing the refrigerant liquid inside the semiconductor cooler 25 to be discharged to the radiator 22. After the radiator 22 cools the refrigerant liquid, it returns to the semiconductor cooler 25 to cool the refrigerant flowing back during the water-cooling stage. The radiator 22 includes a built-in water-cooling coil and an end fan. It cools the refrigerant liquid entering the water-cooling coil through air cooling. The structure and principle of the radiator 22 are conventional settings in the prior art and will not be described in detail here.

[0039] In other embodiments, the water cooling tank 701 can also be designed on the housing 2 or the frame 1, or the water cooling tank 701 can be located at at least one of the cover 7, the housing 2 and the frame 1. When it is located on the frame 1, the water cooling tank 701 is specifically located on the mounting plate of the frame 1 connected to the housing 2, which can also achieve the water cooling effect.

[0040] In addition to the above-mentioned water-cooled tank 701 structure, in other embodiments, the cooling component is a liquid cooling head or liquid cooling plate installed on the cover 7, the housing 2 and / or the frame 1. The liquid cooling head or liquid cooling plate is connected to the refrigeration system. Both the liquid cooling head and the liquid cooling plate are heat exchange components that carry away the heat source through the internal flowing liquid, which can avoid machining the structure of the water-cooled tank 701 on the cover 7 and facilitate assembly.

[0041] It is understood that in other embodiments, the refrigeration system may also be a compressor-based refrigeration system or other refrigeration systems, which are not limited here.

[0042] In this example, the movable grinding disc 5 is centrally connected to a main shaft 15. The main shaft 15 is connected to a motor 10 via a coupling 11. The motor 10 is connected to a water-cooling structure. This water-cooling structure can be similar to the aforementioned water-cooling component, serving as a separate water-cooling unit to cool the motor 10 and prevent damage due to overheating during operation. Alternatively, the water-cooling structure can be connected in series with the aforementioned water-cooling component, allowing the cooling liquid to flow to the motor 10 while simultaneously cooling the fixed grinding disc 6. It is understood that the motor 10 can also be cooled using air cooling. Since the movable grinding disc 5 needs to achieve axial movement, the main shaft 15 also moves axially. Therefore, the coupling 11 in this example is an axially movable type, such as a perforated coupling 11, a diaphragm coupling 11, or a gear coupling 11.

[0043] It also includes an adjustment mechanism for driving the spindle 15 and the movable grinding disc 5 to move axially, the adjustment mechanism being used to adjust the distance between the movable grinding disc 5 and the fixed grinding disc 6.

[0044] In this example, the adjustment mechanism includes a guide sleeve 13 fixed to the end of the housing 2. The guide sleeve 13 is fixed to the housing 2 by bolts. The main shaft 15 is connected to a bearing sleeve 14 via a bearing. The bearing sleeve 14 is located in the center hole of the guide sleeve 13, and the bearing sleeve 14 and the guide sleeve 13 are threaded together. More specifically, the outer diameter of the front end of the bearing sleeve 14 is provided with an external thread, and the inner diameter of the front end of the guide sleeve 13 is provided with an internal thread. The two threads are engaged. The bearing sleeve 14 is connected to a rotary drive device for driving the bearing sleeve 14 to rotate. The device is configured such that when the bearing sleeve 14 rotates, the bearing sleeve 14 moves axially within the guide sleeve 13, thereby driving the main shaft 15 and the movable grinding disc 5 to move axially.

[0045] In this example, the rotary drive device includes a driven wheel 12 mounted on and synchronously connected to the bearing sleeve 14. A rotatable adjusting rod 17 is mounted on the frame 1. One end of the adjusting rod 17 extends outside the frame 1 and is connected to an adjusting handle 16. The other end of the adjusting rod 17 is connected to a driving wheel 18. The driving wheel 18 and the driven wheel 12 are connected via a conveyor belt 19. More specifically, both the driving wheel 18 and the driven wheel 12 are synchronous pulleys, and the conveyor belt 19 is a synchronous belt, providing good transmission performance. To avoid jamming at the position of the conveyor belt 19, the circumferential groove width of the driving wheel 18 and the driven wheel 12 is greater than the width of the conveyor belt 19, which can compensate for axial movement of the main shaft 15.

[0046] A tensioning assembly for tensioning the conveyor belt 19 is installed on the frame 1. The tensioning assembly mainly includes a connecting rod 21 installed on the frame 1. A tensioning wheel 20 is installed at the end of the connecting rod 21. A strip groove is opened at the end of the connecting rod 21. The central shaft of the tensioning wheel 20 is installed at the strip groove by bolts and can slide along the strip groove so that the tensioning wheel 20 contacts the conveyor belt 19 and tensions the conveyor belt 19.

[0047] Specifically, a cover plate 26 is provided below the housing 2. The cover plate 26 is installed at the lower position of the housing 2 by bolts and is in contact with the lower surface of the housing 2. The surface of the cover plate 26 has a discharge channel 2601 that communicates with the discharge port 203. The material falling from the discharge port 203 can directly enter the discharge channel 2601. An elastic support device for installing the receiving cylinder 29 is provided below the cover plate 26. There is an installation gap 30 between the elastic support device and the cover plate 26. The top edge of the receiving cylinder 29 has an outwardly extending flange 2901. When the receiving cylinder 29 is installed on the elastic support device, the receiving cylinder 29 is conveniently placed within the installation gap 30, and the upper end of the receiving cylinder 29 can be reliably attached to the cover plate 26, so that the material falls into the receiving cylinder 29.

[0048] More specifically, the elastic support device includes two symmetrically arranged elastic elements 28. These elastic elements 28 are made of spring steel and are deformable. Each elastic element 28 has a fixed end 2801 and a movable end 2805. The fixed end 2801 is fixed to the lower part of the cover plate 26 by bolts, while the movable end 2805 is suspended. A limiting area 2802 is formed in the middle of the two elastic elements 28 for radially limiting the connection of the receiving cylinder 29. In this example, an outwardly protruding arc-shaped portion 2803 is located in the middle of the elastic element 28. The limiting area 2802 is formed in the area between the arc-shaped portions 2803 of the two elastic elements 28. The inner diameter of the limiting area 2802 is smaller than the outer diameter of the flange 2901, allowing the lower surface of the flange 2901 of the receiving cylinder 29 to contact the elastic element 28. The limiting area 2802 is used to radially limit the connection of the receiving cylinder 29, achieving the effect of quick installation of the receiving cylinder 29.

[0049] More specifically, in this example, the outer ends of the two elastic elements 28 form an open portion 2804, that is, the two elastic elements 28 have an flared structure that extends outward at the movable end 2805. The receiving cylinder 29 can enter the limiting area 2802 from the open portion 2804. A sealing ring 27 is installed below the cover plate 26. When the receiving cylinder 29 is installed in the elastic support device, the upper end of the receiving cylinder 29 is tightly fitted with the sealing ring 27. The upper surface of the elastic element 28 is provided with a protruding support portion 2806. The distance between the highest point of the support portion 2806 and the sealing ring 27 is less than the thickness of the flange 2901. Thus, the support portion 2806 can provide an upward force on the flange 2901, so that the sealing ring 27 at the upper end of the receiving cylinder 29 is tightly fitted, further improving the sealing performance.

[0050] In operation, this water-cooled disc mill first feeds material into the hopper. Under the action of the screw feeder, the material enters the feed pipe 8 and passes sequentially through the center hole of the cover 7 and the fixed grinding disc 6, finally entering the grinding area between the fixed grinding disc 6 and the movable grinding disc 5. After starting the motor 10, the motor 10 drives the main shaft 15 to rotate via the coupling 11, thereby driving the movable grinding disc 5 to rotate at high speed. At this time, the fixed grinding disc 6 remains stationary, with the teeth of the two grinding discs facing each other. During the rotation of the movable grinding disc 5, the material is subjected to strong shearing and grinding action between the grinding disc teeth, gradually being crushed to the required particle size. The ground material falls from the gap between the fixed grinding disc 6 and the movable grinding disc 5, is discharged through the discharge port 203, and enters the receiving cylinder 29 for collection through the discharge channel 2601 on the cover plate 26.

[0051] During the grinding process, both the fixed grinding disc 6 and the movable grinding disc 5 inevitably generate heat due to friction with the material. To prevent heat accumulation from affecting the sample's moisture content and grinding accuracy, a combination of water cooling and air cooling is used to cool the two grinding discs. The fixed grinding disc 6 has an annular cooling element inside its cover 7, and the cooling system circulates coolant through inlet and outlet pipes, ensuring timely heat dissipation from the fixed grinding disc 6. The movable grinding disc 5 has a high thermal conductivity heat-conducting disc 4 installed at one end. This disc conducts the heat generated by the movable grinding disc 5 to the air cooling channel 205. Simultaneously, the heat diffuser 3 connected to the heat-conducting disc 4 rotates, generating airflow that draws in cool air through the air inlet 206, carrying away the heat and expelling it through the air outlet 204, thus achieving air cooling. This combination of water and air cooling effectively improves the overall heat dissipation efficiency of the machine, ensuring stable grinding over extended periods.

[0052] When adjusting the gap between the two grinding discs, the operator only needs to turn the adjusting handle 16 on the outside of the frame 1. The driving wheel 18 will then drive the driven wheel 12 and the bearing sleeve 14 to rotate via the synchronous belt. Since the bearing sleeve 14 and the guide sleeve 13 are threaded together, the bearing sleeve 14 will move axially when it rotates, thereby causing the main shaft 15 and the movable grinding disc 5 to make corresponding axial displacements, thus adjusting the gap between the movable grinding disc 5 and the fixed grinding disc 6.

[0053] During the receiving process, the receiving cylinder 29 is quickly installed by cooperating with the elastic support device under the cover plate 26 through the flange 2901. Specifically, the receiving cylinder 29 enters between the two elastic elements 28 through the open portion 2804 at the ends of the two elastic elements 28, and finally sits at the position of the limiting zone 2802. The limiting zone 2802 radially limits the receiving cylinder 29, and the lower surface of the flange 2901 presses against the support portion 2806 of the elastic element 28, thereby making the receiving cylinder 29 tightly fit with the sealing ring 27 under the cover plate 26. The upward force of the elastic element 28 ensures the sealing performance and prevents the grinding powder from overflowing. During disassembly, simply pull the receiving cylinder 29 outward to deform the elastic element 28, and the receiving cylinder 29 can be removed from the open portion 2804 position, which is simple to operate.

[0054] 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 highly efficient cooling disc mill, characterized in that, Includes a frame (1), on which a housing (2) is fixed, a grinding chamber (201) is formed inside the housing (2), a discharge port (203) is provided below the grinding chamber (201), a rotatable and axially movable grinding disc (5) is provided inside the grinding chamber (201), and an air-cooling channel (205) is provided inside the housing (2) to diffuse the heat generated by the working of the movable grinding disc (5) outward through the air-cooling channel (205); The end of the housing (2) is movably connected to the cover (7), and a fixed grinding disc (6) is installed on the inner side of the cover (7). The fixed grinding disc (6) is arranged opposite to the movable grinding disc (5). Cooling components are provided on the cover (7), the housing (2) and / or the frame (1) to dissipate the heat generated by the fixed grinding disc (6) during operation.

2. The highly efficient cooling disc mill according to claim 1, characterized in that, The housing (2) is provided with a partition (202). The grinding chamber (201) and the air-cooling channel (205) are located on both sides of the partition (202). The end of the movable grinding disc (5) is connected to a heat-conducting plate (4). One end of the heat-conducting plate (4) extends through the partition (202) into the air-cooling channel (205). The air-cooling channel (205) is provided with a heat diffuser (3). An air outlet (204) and an air inlet (206) are respectively opened on the side wall of the housing (2).

3. The highly efficient cooling disc mill according to claim 2, characterized in that, The grinding chamber (201) has an annular structure. The outer edge of the heat-conducting disk (4) extends toward the inner wall of the grinding chamber (201), and the edge of the heat-conducting disk (4) is provided with a scraping part.

4. The highly efficient cooling disc mill according to claim 1, characterized in that, The cooling component is a water-cooled tank (701) with an annular recess structure opened on the cover (7), housing (2) and / or frame (1). A sealing ring (9) is installed on the outside of the water-cooled tank (701). An inlet pipe and an outlet pipe are respectively installed on the sealing ring (9). The ends of the inlet pipe and the outlet pipe are connected to a refrigeration system. Alternatively, the cooling component may be a liquid cooling head or liquid cooling plate installed on the cover (7), housing (2) and / or frame (1), and the liquid cooling head or liquid cooling plate may be connected to the refrigeration system.

5. A highly efficient cooled disc mill according to claim 1, characterized in that, The movable grinding disc (5) is connected to a main shaft (15) at its center. The main shaft (15) is connected to a motor (10) via a coupling (11). The motor (10) is connected to a water-cooling structure. It also includes an adjustment mechanism for driving the spindle (15) and the movable grinding disc (5) to move axially, the adjustment mechanism being used to adjust the distance between the movable grinding disc (5) and the fixed grinding disc (6).

6. A highly efficient cooled disc mill according to claim 5, characterized in that, The adjustment mechanism includes a guide sleeve (13) fixed at the end of the housing (2). The main shaft (15) is connected to a bearing sleeve (14) via a bearing. The bearing sleeve (14) is located in the center hole of the guide sleeve (13) and the bearing sleeve (14) is threadedly engaged with the guide sleeve (13). The bearing sleeve (14) is connected to a rotary drive device for driving the bearing sleeve (14) to rotate. The device is configured such that when the bearing sleeve (14) rotates, the bearing sleeve (14) moves axially within the guide sleeve (13) and drives the main shaft (15) and the movable grinding disc (5) to move axially.

7. A highly efficient cooled disc mill according to claim 6, characterized in that, The rotary drive device includes a driven wheel (12) mounted on a bearing sleeve (14) and synchronously connected to the bearing sleeve (14). A rotatable adjusting rod (17) is mounted on the frame (1). One end of the adjusting rod (17) extends to the outside of the frame (1) and is connected to an adjusting handle (16). The other end of the adjusting rod (17) is connected to a driving wheel (18). The driving wheel (18) and the driven wheel (12) are connected through a conveyor belt (19). A tensioning assembly for tensioning the conveyor belt (19) is mounted on the frame (1).

8. The highly efficient cooling disc mill according to claim 1, characterized in that, A cover plate (26) is provided below the housing (2). The surface of the cover plate (26) is provided with a discharge channel (2601) that communicates with the discharge port (203). An elastic support device for installing the receiving cylinder (29) is provided below the cover plate (26). An installation gap (30) is provided between the elastic support device and the cover plate (26). The top edge of the receiving cylinder (29) has an outwardly extending flange (2901). When the receiving cylinder (29) is installed on the elastic support device, the receiving cylinder (29) is conveniently placed in the installation gap (30) and can reliably fit the upper end of the receiving cylinder (29) with the cover plate (26), so that the material falls into the receiving cylinder (29).

9. A highly efficient cooled disc mill according to claim 8, characterized in that, The elastic support device includes two symmetrically arranged elastic elements (28). The middle part of the two elastic elements (28) forms a limiting area (2802) for radially limiting the receiving cylinder (29). The outer ends of the two elastic elements (28) form an open part (2804). The receiving cylinder (29) can enter the limiting area (2802) from the open part (2804). The upper surface of the elastic element (28) is provided with a protruding support part (2806). A sealing ring (27) is installed below the cover plate (26). When the receiving cylinder (29) is installed in the elastic support device, the upper end of the receiving cylinder (29) is tightly fitted with the sealing ring (27).

10. A highly efficient cooled disc mill according to claim 1, characterized in that, The machine cover (7) is equipped with a feed pipe (8), the inner cavity of which is connected to the area between the fixed grinding disc (6) and the movable grinding disc (5).

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