A low-temperature bone meal grinding device

Abstract

This utility model relates to the field of low-temperature grinding, and more particularly to a low-temperature bone meal grinding device. This utility model provides such a low-temperature bone meal grinding device, including a shell, controller, cover, grinding barrel, grinding chamber, drive motor, and rotating shaft. The controller is installed on the front side of the shell, and the cover is rotatably connected to the top of the shell. The grinding barrel is fixedly connected to the inner side of the upper part of the shell, and the grinding chamber is fixedly connected to the inner side of the lower part of the shell. The discharge port at the bottom of the grinding barrel is fixedly connected to the grinding chamber. The drive motor is installed on the top of the cover and is electrically connected to the controller. The rotating shaft is fixedly connected to the output shaft of the drive motor. This utility model utilizes a collaborative working mechanism between the grinding head, slide bar, and spring. When the grinding head encounters a strong impact from hard bone particles, the spring can absorb and disperse part of the impact force, effectively reducing the instantaneous pressure on the grinding head.

Description

Technical Field

[0001] This utility model relates to the field of low-temperature grinding, and in particular to a low-temperature bone meal grinding device. Background Technology

[0002] Bone meal is a powdered fertilizer made from animal bones. As an important animal-derived raw material, it has wide applications in food processing, pharmaceutical preparations, and biomaterials. Its nutrients are temperature-sensitive. Traditional grinding processes often use mechanical pulverization at room temperature or high temperature, which can easily lead to denaturation and inactivation of heat-sensitive components in the bone meal, causing problems such as protein structure damage and loss of active substances, directly affecting product quality and added value.

[0003] Existing bone meal grinding equipment mainly achieves material crushing through mechanical impact and shearing. However, significant frictional heat generation occurs during high-speed operation, causing the temperature inside the grinding chamber to rise rapidly. Furthermore, harder bones can easily damage the grinding mechanism during the grinding process; for example, grinding heads, blades, and other grinding components may experience wear, deformation, or breakage. This affects the normal operation of the machine, shortens its service life, increases maintenance costs and replacement frequency, and reduces production efficiency and economic benefits.

[0004] Therefore, there is a particular need for a low-temperature bone meal grinding device to solve the above problems. Utility Model Content

[0005] In order to overcome the disadvantage that the hardness of bones can easily damage the grinding mechanism and shorten the working life of the machine, the technical problem of this utility model is to provide a low-temperature bone powder grinding device.

[0006] The technical implementation scheme of this utility model is as follows: a low-temperature bone meal grinding device, including a shell, a controller, a cover, a grinding barrel, a grinding chamber, a drive motor, a rotating shaft, blades, stirring blades, a grinding head, a slide rod, and a spring. The controller is installed on the front side of the shell, and the cover is rotatably connected to the top of the shell. The grinding barrel is fixedly connected to the inner side of the upper part of the shell, and the grinding chamber is fixedly connected to the inner side of the lower part of the shell. The discharge port at the bottom of the grinding barrel is fixedly connected to the grinding chamber. The drive motor is installed on the top of the cover and is electrically connected to the controller. The rotating shaft is fixedly connected to the output shaft of the drive motor. The rotating shaft passes through the grinding barrel and is rotatably connected to the bottom of the grinding chamber. Several rows of blades are evenly fixedly connected to the rotating shaft inside the grinding barrel. Stirring blades are fixedly connected to the rotating shaft at the discharge port of the grinding barrel. The grinding head is slidably connected to the bottom of the rotating shaft. Slide rods are slidably connected to both sides of the grinding head. The top of the slide rods is slidably connected to the inner wall of the grinding chamber. A spring is wound on the slide rod above the grinding head, and one side of the spring is fixedly connected to the grinding head.

[0007] Furthermore, the bottom of the grinding chamber is provided with threaded grooves to increase the resistance during grinding.

[0008] Furthermore, it also includes scrapers. Two scrapers are fixed to the part of the shaft located in the grinding barrel. The scrapers are in close contact with the inner wall of the grinding barrel and are made of soft silicone material.

[0009] Furthermore, it also includes a temperature sensor, which is mounted on the housing and electrically connected to the controller.

[0010] Furthermore, the diameter of the stirring blades is the same as the diameter of the discharge port of the crushing barrel.

[0011] Furthermore, it also includes a liquid nitrogen storage tank and a cooling pipe. The liquid nitrogen storage tank is located on the left side of the outer shell, and the cooling pipe is connected to the liquid nitrogen storage tank. The cooling pipe passes through the outer shell and is wrapped around the outer wall of the crushing barrel and the grinding chamber respectively.

[0012] The present invention has the following advantages: 1. Through the collaborative working mechanism between the grinding head, the slide bar and the spring, when the grinding head encounters a strong impact from hard bone particles, the spring can absorb and disperse part of the impact force, effectively reducing the instantaneous pressure on the grinding head and avoiding wear, deformation and other damage to the device caused by excessive impact force.

[0013] 2. This utility model uses a drive motor to rotate the rotating rod, thereby allowing the cutter and grinding head to rotate and work simultaneously. This avoids the time waste that may occur in traditional step-by-step processing, improves work efficiency, and makes grinding more thorough, thus improving the quality of bone meal and meeting higher production requirements. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the novel components of this utility model, including the outer shell, lid, and crushing bucket.

[0016] Figure 3 This is a three-dimensional structural diagram of the drive motor, rotating shaft, and blade components of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the grinding head, slide bar, and spring components of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the outer shell, slide bar, and spring components of this utility model.

[0019] In the above attached diagram: 1: outer casing, 101: controller, 2: cover, 3: crushing barrel, 4: grinding chamber, 5: liquid nitrogen storage tank, 501: temperature sensor, 6: cooling pipe, 7: drive motor, 8: rotating shaft, 9: blade, 10: scraper, 11: stirring blade, 12: grinding head, 13: slide bar, 14: spring. Detailed Implementation

[0020] Example: A low-temperature bone meal grinding device, such as Figures 1-5 As shown, the device includes a housing 1, a controller 101, a cover 2, a grinding bucket 3, a grinding chamber 4, a drive motor 7, a rotating shaft 8, blades 9, stirring blades 11, a grinding head 12, a sliding rod 13, and a spring 14. The controller 101 is bolted to the front of the housing 1. The cover 2 is rotatably connected to the top of the housing 1. The grinding bucket 3 is fixedly attached to the inner upper part of the housing 1, and the grinding chamber 4 is fixedly attached to the inner lower part of the housing 1. The bottom of the grinding chamber 4 has threaded grooves to increase resistance during grinding and ensure more thorough grinding. The discharge port at the bottom of the grinding bucket 3 is fixedly connected to the grinding chamber 4. The drive motor 7 is bolted to the top of the cover 2, and the drive motor 7 is electrically connected to the controller 101. A rotating shaft 8 is fixedly connected to the output shaft of the drive motor 7. The rotating shaft 8 passes through the crushing barrel 3 and is rotatably connected to the bottom of the grinding chamber 4. Three rows of blades 9 are evenly welded on the rotating shaft 8 located inside the crushing barrel 3. A stirring blade 11 is welded on the rotating shaft 8 located at the discharge port of the crushing barrel 3. The diameter of the stirring blade 11 is the same as the diameter of the discharge port of the crushing barrel 3. This can prevent the bones to be processed from falling directly into the grinding chamber 4. A grinding head 12 is slidably connected to the bottom of the rotating shaft 8. A sliding rod 13 is slidably connected to both sides of the grinding head 12. The top of the sliding rod 13 is slidably connected to the inner wall of the grinding chamber 4. A spring 14 is wound on the sliding rod 13 above the grinding head 12. One side of the spring 14 is welded to the grinding head 12.

[0021] like Figure 1 and Figure 2 As shown, it also includes a liquid nitrogen storage tank 5 and a cooling pipe 6. The liquid nitrogen storage tank 5 is arranged on the left side of the outer shell 1. The cooling pipe 6 is threaded onto the liquid nitrogen storage tank 5. The cooling pipe 6 passes through the outer shell 1 and is wound around the outer walls of the crushing barrel 3 and the grinding chamber 4 respectively.

[0022] When using this device, the operator should first place it stably on a level surface, ensuring that it will not tilt or move due to uneven ground. Next, open the lid 2 and add the bones to be processed into the crushing barrel 3. Since the diameter of the stirring blade 11 is the same as the discharge port of the crushing barrel 3, it can block the discharge port, preventing the bones from falling directly into the grinding chamber 4. Then, open the valve of the liquid nitrogen storage tank 5. After the liquid nitrogen enters the cooling pipe 6, it will cool the crushing barrel 3 and the grinding chamber 4. The operator can observe whether the device has reached the appropriate temperature through the temperature sensor 501.

[0023] like Figure 1 As shown, it also includes a temperature sensor 501, which is mounted on the housing 1 and is electrically connected to the controller 101.

[0024] like Figure 2 and Figure 3As shown, it also includes scrapers 10. Two scrapers 10 are welded to the part of the rotating shaft 8 located in the crushing barrel 3. The scrapers 10 are in close contact with the inner wall of the crushing barrel 3 and are made of soft silicone material.

[0025] After the device cools down to a suitable temperature, the staff can use the controller 101 to start the drive motor 7. The output shaft of the drive motor 7 drives the rotating shaft 8 to rotate, which in turn drives the blade 9 to rotate, and performs basic crushing of the bones in the crushing barrel 3. During the crushing process, fine powder will adhere to the inner wall of the crushing barrel 3. At this time, the scraper 10, which rotates together with the rotating shaft 8, will scrape off the bone powder, thereby reducing material loss.

[0026] The crushed bones will be gradually conveyed to the grinding chamber 4 along the stirring blade 11. Due to the obstruction of the stirring blade 11, the bones that are too large cannot fall directly through the stirring blade 11 to the bottom. These larger particles will continue to remain in the crushing barrel 3 and be further crushed by the blade 9 until they are of suitable size before falling into the grinding chamber 4 along the stirring blade 11. At the same time, the stirring blade 11 can also prevent the discharge port from being blocked.

[0027] After bone particles fall into the grinding chamber 4, they are gradually crushed into bone powder through rotation and compression between the grinding head 12 and the threaded grooves at the bottom of the grinding chamber 4. When the grinding head 12 encounters relatively hard bone particles during operation, its grinding capacity may be insufficient to directly crush them. In this case, due to the large reaction force from the hard bone particles, the grinding head 12 will move upward along the rotating shaft 8, and the spring 14 on the slide rod 13 will be compressed. In this state where the grinding head 12 is lifted, the pressure between the grinding head 12 and the hard bone particles will change. Compared to the pressure when directly forcibly grinding, the pressure on the grinding head 12 is reduced in this state, thus avoiding irreparable damage to the machine caused by excessive pressure during forced grinding. As the bone is gradually crushed into powder, the reaction force on the grinding head 12 decreases, and it will return to its original position under the reaction force of the spring 14, continuing normal grinding work.

[0028] Continuous processing can be carried out by following the above operating procedures. After the bone meal grinding is completed, the operator closes the valve of the liquid nitrogen storage tank 5, stops the drive motor 7 by using the controller 101, collects the bone meal in the grinding chamber 4, and then opens the cover 2 to clean the inside of the device.

Claims

1. A low-temperature bone powder grinding device, characterized in that: It includes a housing (1), a controller (101), a lid (2), a crushing barrel (3), a grinding chamber (4), a driving motor (7), a rotating shaft (8), blades (9), stirring blades (11), a grinding head (12), a sliding rod (13) and a spring (14). The controller (101) is installed on the front side of the housing (1). The lid (2) is rotatably connected to the top of the housing (1). The crushing barrel (3) is fixedly connected to the inner side of the upper part of the housing (1). The grinding chamber (4) is fixedly connected to the inner side of the lower part of the housing (1). The lower discharge port of the crushing barrel (3) is fixedly connected to the grinding chamber (4). The driving motor (7) is installed on the top of the lid (2), and the driving motor (7) is electrically connected to the controller (101). The output shaft of the driving motor (7) is fixedly connected with the rotating shaft (8). The rotating shaft (8) passes through the crushing barrel (3) and is rotatably connected to the bottom of the grinding chamber (4). A number of rows of blades (9) are evenly fixedly connected to the rotating shaft (8) located inside the crushing barrel (3). The stirring blade (11) is fixedly connected to the rotating shaft (8) at the discharge port of the crushing barrel (3). The grinding head (12) is slidably connected to the bottom of the rotating shaft (8). The sliding rods (13) are slidably connected to both sides of the grinding head (12). The tops of the sliding rods (13) are slidably connected to the inner wall of the grinding chamber (4). A spring (14) is wound around the sliding rod (13) above the grinding head (12). One side of the spring (14) is fixedly connected to the grinding head (12).

2. The low-temperature bone powder grinding device according to claim 1, characterized in that: Threaded grooves are provided at the bottom of the grinding chamber (4) to increase the resistance during grinding.

3. The low-temperature bone powder grinding device according to claim 2, characterized in that: It further includes a scraper (10). Two scrapers (10) are fixedly connected to the part of the rotating shaft (8) located in the crushing barrel (3). The scrapers (10) are closely attached to the inner wall of the crushing barrel (3), and the scrapers (10) are made of soft silicone material.

4. A low-temperature bone powder grinding device according to claim 3, characterized in that: It further includes a temperature sensor (501). The temperature sensor (501) is installed on the housing (1), and the temperature sensor (501) is electrically connected to the controller (101).

5. The low-temperature bone powder grinding device according to claim 4, characterized in that: The diameter of the stirring blade (11) is the same as the diameter of the discharge port of the crushing barrel (3).

6. The low-temperature bone powder grinding device according to claim 5, characterized in that: It further includes a liquid nitrogen storage tank (5) and a refrigeration pipe (6). The liquid nitrogen storage tank (5) is arranged on the left side of the housing (1). The refrigeration pipe (6) is connected to the liquid nitrogen storage tank (5). The refrigeration pipe (6) passes through the housing (1) and is respectively wound around the outer walls of the crushing barrel (3) and the grinding chamber (4).

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