Grinding tank of a vertical sand mill and grinding method thereof

Abstract

The present application relates to sand mill technical field, specifically disclose a kind of vertical sand mill's grinding tank and its grinding method, including fixed frame, the quantity of fixed frame is two, one grinding barrel is movably installed between two fixed frames, rotating motor is installed at the bottom of grinding barrel, rotating rod is rotatably installed in the inside of grinding barrel, the output end of rotating motor movably penetrates the bottom of grinding barrel and is connected with rotating rod, multiple check valves are evenly embedded and installed at the bottom of grinding barrel, fixed ring is installed at the top of grinding barrel, and screening mechanism is equipped on fixed ring, and the outside of rotating rod is equipped with agitating mechanism. The present application is provided with check valve, and the preset wind of check valve is blown to grinding barrel, can be swept to zirconium ball and material in grinding tank, can prevent material from a large number of wall sticking and bottom caking, and also can form tumbling while cooling material, reach material grinding uniform, greatly improve the production quality of device.

Description

Technical Field

[0001] This invention relates to the field of sand mill technology, and more particularly to a grinding jar for a vertical sand mill and its grinding method. Background Technology

[0002] Vertical mills are grinding equipment that integrates fine crushing, drying, grinding, powder selection and conveying. They are widely used in the grinding and ultrafine crushing of various solid materials in industries such as cement, building materials, power, metallurgy, chemical industry and non-metallic minerals.

[0003] Existing grinding jars cannot use gas to purge during the grinding process, which leads to excessively high temperatures, causing material to stick to the walls and clump at the bottom, thus failing to achieve effective grinding and resulting in material loss. There is a need to develop a system that allows bottom-venting airflow to purge the material inside the jar, cooling it while simultaneously causing it to tumble, ensuring uniform grinding. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a grinding jar for a vertical sand mill.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A grinding jar for a vertical sand mill and a grinding method thereof, comprising two fixed frames, with a grinding jar movably mounted between the two fixed frames. A rotating motor is mounted at the bottom of the grinding jar, and a rotating rod is rotatably mounted inside the grinding jar. The output end of the rotating motor movably passes through the bottom of the grinding jar and is connected to the rotating rod. Multiple check valves are evenly embedded at the bottom of the grinding jar, and a fixed ring is mounted at the top of the grinding jar. A screening mechanism is provided on the fixed ring, and an agitation mechanism is provided on the outside of the rotating rod.

[0007] Preferably, a first rotary motor is embedded in both of the fixing brackets on the side near the grinding barrel, the output end of the first rotary motor faces the grinding barrel, and the output end of the first rotary motor is connected to the grinding barrel.

[0008] Preferably, the screening mechanism includes a screen plate and a cover plate. The screen plate is movably installed on the top of the fixing ring. Multiple screen holes are evenly opened through the screen plate. The cover plate is movably installed above the screen plate. A connecting pipe is embedded in the top of the cover plate.

[0009] Preferably, a first connecting block is installed on one side of the sieve plate, and a second rotary motor is embedded in the top of the fixing ring near the first connecting block with the output end of the second rotary motor facing upward. An electric lifting rod is embedded in the bottom of the first connecting block with the mounting end of the electric lifting rod facing downward, and the output end of the second rotary motor is connected to the mounting end of the electric lifting rod.

[0010] Preferably, a second connecting block is installed on the side of the cover plate away from the first connecting block, and a third rotary motor is embedded in the top of the fixing ring near the second connecting block. The output end of the third rotary motor faces upward, and an electric telescopic rod is installed on the output end of the third rotary motor. The telescopic end of the electric telescopic rod faces upward, and the telescopic end of the electric telescopic rod is connected to the bottom of the second connecting block.

[0011] Preferably, the agitation mechanism includes fixed rods and scrapers. Multiple fixed rods are evenly and movably installed on the outer side of the rotating rod. A scraper is movably installed on the end of the fixed rod away from the rotating rod. The tops and bottoms of the multiple scrapers in the same row abut against each other.

[0012] Preferably, a plurality of first sliding grooves are evenly provided on the outer side of the rotating rod, and a first electric slider is installed at the end of the fixed rod near the rotating rod, and the first electric slider is slidably installed inside the first sliding groove.

[0013] Preferably, the fixed rod has a first slot at the end away from the rotating rod, and a second sliding groove is provided on the inner walls of both sides of the first slot. A second electric slider is slidably installed inside the second sliding groove. A movable rod is installed on the side of the scraper near the fixed rod, and the end of the movable rod near the fixed rod is movably installed inside the first slot. The side of the second electric slider near the fixed rod is connected to the fixed rod.

[0014] Preferably, a first baffle is installed between each column of multiple first electric sliders, and a second baffle is installed at the top and bottom of each column of first electric sliders. A second slot is opened at the end of the second baffle away from the first electric slider. A third baffle is slidably installed inside the second slot. The end of the third baffle away from the second baffle is connected to the inner wall of the first slide groove. The first baffle, the second baffle and the third baffle can all slide inside the first slide groove.

[0015] Preferably, a grinding method for a vertical sand mill, the grinding method being applicable to the aforementioned grinding jar, and the grinding method further comprising the following steps:

[0016] Step 1: The electric telescopic rod drives the cover plate to extend upward to the preset height position. The third rotary motor drives the cover plate to rotate to the preset position. The electric lifting rod drives the screen plate to rise to the preset height position. The second rotary motor drives the screen plate to rotate in the opposite direction to the cover plate. The operator adds different zirconium balls into the grinding barrel according to the grinding requirements. The material to be ground is added into the grinding barrel. The screen plate and cover plate are then placed on top of the grinding barrel again in the reverse order of the above operation steps to complete the feeding.

[0017] Step 2: The rotating motor drives the rotating rod to rotate, so that the fixed rod and scraper can agitate the zirconium balls inside the grinding barrel. The zirconium balls grind the material. During the grinding process, multiple scrapers extend to different positions to increase the agitation effect of the zirconium balls, improve the grinding effect of the device on the material, and increase the grinding efficiency of the device.

[0018] Step 3: Open the solenoid valve inside the connecting pipe and start the fan connected to the check valve. Blow air through the check valve to the grinding barrel with the preset air force to sweep the zircon balls and materials inside the grinding barrel, preventing the materials from sticking to the wall and clumping at the bottom. It can also cool the materials and make them roll, so as to achieve uniform grinding of the materials.

[0019] Step 4: After the material grinding is completed, rotate the grinding barrel to the opening-down position and rotate the cover plate to the position where it no longer abuts against the screen plate. The ground material in the grinding barrel will leak out of the grinding barrel through the screen holes and fall into the pre-set container outside the device. During the material feeding process, the rotating rod drives the fixed rod and scraper to rotate. The fixed rod and scraper move the zircon balls, which move the material between the gaps of the zircon balls, increasing the falling speed and making the falling process of the material smoother.

[0020] Step 5: During the feeding process, the scraper can strike the screen plate. This operation method prevents the screen holes from becoming clogged, which would affect the material falling and increase the ease of use of the device. The scraper abuts against the inner wall of the grinding barrel, the rotating rod rotates, and the blower connected to the check valve blows air. The scraper can scrape the inner wall of the grinding barrel. Combined with the blower blowing air into the device, the residual material on the inner wall of the grinding barrel is scraped off, increasing the feeding rate of the device and completing the cleaning of the inner wall of the grinding barrel.

[0021] Step Six: After the device is finished, connect the outside of the connecting pipe to the water pipe, rotate the grinding barrel to the opening-down position, and inject a preset amount of clean water into the grinding barrel through the water pipe. Rotate the rotating rod, and the fixed rod and scraper can agitate the zirconium balls inside the grinding barrel. Combined with the scraper scraping the inner wall of the grinding barrel, the inside of the grinding barrel and the zirconium balls are cleaned. After cleaning, the wastewater can be discharged directly from the connecting pipe. Rotate the cover plate to the position where it does not cover the screen plate. Rotate the rotating rod to agitate the zirconium balls with the fixed rod and scraper. Combined with the effect of the air blowing at the check valve, the cleaned zirconium balls and the inside of the grinding barrel can achieve a rapid drying effect, increasing the ease of use of the device.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] In this invention, a check valve is provided. By blowing air into the grinding tank with a preset force through the check valve, the zircon balls and materials inside the grinding tank can be swept away. This can prevent the materials from sticking to the walls and clumping at the bottom. In addition, it can cool the materials and make them roll, so as to achieve uniform grinding of the materials and greatly improve the production quality of the device.

[0024] After the device cleans the zirconium balls and the inside of the grinding barrel, it uses a check valve to blow air into the grinding barrel, which allows the cleaned zirconium balls and the inside of the grinding barrel to dry quickly, increasing the ease of use of the device.

[0025] In this invention, by providing a connecting pipe, when the device is grinding materials, the connecting pipe opens when the check valve blows air, which can balance the pressure inside the grinding barrel, prevent the pressure inside the grinding barrel from increasing and affecting the grinding effect of the device, and also ensure the normal operation of the check valve blowing air into the grinding barrel.

[0026] After the device is finished using it, connect the outside of the connecting pipe to the water pipe, then rotate the grinding barrel to the use position with the opening facing down, and inject a preset amount of clean water into the grinding barrel through the water pipe to clean the inside of the grinding barrel and the zircon balls. After cleaning, the wastewater can be discharged directly from the connecting pipe, increasing the ease of use of the device.

[0027] In this invention, by setting a fixed rod and scrapers, during the grinding process, the second electric slider slides in the second groove, allowing multiple scrapers to extend to different usage positions. Through this operation method, the scrapers can agitate the zirconium balls at different positions, which can increase the agitation effect of the device on the zirconium balls, thereby improving the grinding effect of the device on the material and increasing the grinding efficiency of the device.

[0028] During the material feeding process after grinding, the rotating rod drives the fixed rod and scraper to rotate. The fixed rod and scraper move the zircon balls, which can move the material between the gaps of the zircon balls, increase its falling speed, and make the falling process of the material smoother.

[0029] During the feeding process, the first electric slider slides in the first chute, allowing the scraper to strike the screen plate. This operation method can prevent the screen holes from becoming blocked, which would affect the falling of the material and increase the ease of use of the device.

[0030] By moving the movable rod on the fixed rod, the scraper comes into contact with the inner wall of the grinding barrel. Then, by rotating the rotating rod, the blower connected to the check valve blows air, which allows the scraper to scrape the inner wall of the grinding barrel. Combined with the blower blowing air into the device, this operation method can scrape off the residual material on the inner wall of the grinding barrel, increase the feeding rate of the device, and also clean the inner wall of the grinding barrel.

[0031] During the cleaning process of zirconium balls, the agitation of the zirconium balls by the fixed rod and scraper, as well as the scraping of the inner wall of the grinding barrel by the scraper, can improve the cleaning effect of the device on the zirconium balls and the grinding barrel, and increase the stability of the device's function. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the mounting structure of a rotary electric motor according to the present invention;

[0034] Figure 3 This is a schematic diagram of the mounting structure of the second and third rotary motors of the present invention;

[0035] Figure 4 This is a schematic diagram of the sieve plate structure of the present invention;

[0036] Figure 5 This is a schematic diagram of the cover plate structure of the present invention;

[0037] Figure 6 This is a schematic diagram of the internal structure of the grinding barrel of the present invention;

[0038] Figure 7 This is a schematic diagram of the mounting structure of the fixing rod and scraper of the present invention;

[0039] Figure 8 This is a schematic diagram of the movable rod mounting structure of the present invention;

[0040] Figure 9 This is a schematic diagram of the second electric slider mounting structure of the present invention;

[0041] Figure 10 This is a schematic cross-sectional view of the second baffle structure of the present invention;

[0042] Figure 11 This is a schematic diagram of the rotating rod structure of the present invention.

[0043] In the diagram: 1. Fixed frame; 2. Grinding barrel; 3. Rotary motor; 4. Check valve; 5. Fixing ring; 6. First connecting block; 7. Sieve plate; 8. Electric telescopic rod; 9. Second connecting block; 10. Cover plate; 11. Connecting pipe; 12. First rotary motor; 13. Second rotary motor; 14. Third rotary motor; 15. Rotating rod; 16. Sieve hole; 17. Fixed rod; 18. Scraper; 19. First baffle; 20. Second baffle; 21. First chute; 22. First electric slider; 23. Movable rod; 24. First slot; 25. Second chute; 26. Second electric slider; 27. Second slot; 28. Third baffle; 29. ​​Electric lifting rod. Detailed Implementation

[0044] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0045] Reference Figure 1-11 A grinding jar of a vertical sand mill includes two fixed frames 1. A grinding jar 2 is movably installed between the two fixed frames 1. A rotary motor 3 is installed at the bottom of the grinding jar 2. A rotating rod 15 is rotatably installed inside the grinding jar 2. The output end of the rotary motor 3 passes through the bottom of the grinding jar 2 and is connected to the rotating rod 15. Multiple check valves 4 are evenly embedded in the bottom of the grinding jar 2. A fixing ring 5 is installed at the top of the grinding jar 2, and a screening mechanism is provided on the fixing ring 5. An agitation mechanism is provided on the outside of the rotating rod 15. By blowing air at a preset force through the check valves 4 into the grinding jar 2, the zircon balls and materials inside the grinding jar can be swept away, preventing the materials from sticking to the walls and agglomerating at the bottom. It can also cool the materials and make them tumble, achieving uniform grinding and greatly improving the production quality of the device. The screening mechanism can screen and discharge the materials after grinding, increasing the ease of use of the device. The agitation mechanism can enhance the grinding effect of the device and can also be changed according to different usage requirements to achieve different effects.

[0046] As a technical optimization of the present invention, a first rotary motor 12 is embedded in each of the two fixing brackets 1 on the side near the grinding barrel 2. The output end of the first rotary motor 12 faces the grinding barrel 2 and is connected to the grinding barrel 2. The first rotary motor 12 can drive the grinding barrel 2 to rotate.

[0047] As an optimized technical solution of the present invention, the screening mechanism includes a screen plate 7 and a cover plate 10. The screen plate 7 is movably installed on the top of the fixing ring 5. A plurality of screen holes 16 are evenly opened through the screen plate 7. The cover plate 10 is movably installed above the screen plate 7, and a connecting pipe 11 is embedded in the top of the cover plate 10. The screen holes 16 can distinguish the ground material from the zirconium balls, facilitating the material discharge. The cover plate 10 can seal the screen holes 16 to prevent material leakage. The connecting pipe 11 can serve as a vent and can also be connected to a water pipe for cleaning the inside of the device.

[0048] As a technical optimization of the present invention, a first connecting block 6 is installed on one side of the sieve plate 7. A second rotary motor 13 is embedded in the top of the fixing ring 5 near the first connecting block 6, with the output end of the second rotary motor 13 facing upwards. An electric lifting rod 29 is embedded in the bottom of the first connecting block 6, with the mounting end of the electric lifting rod 29 facing downwards, and the output end of the second rotary motor 13 is connected to the mounting end of the electric lifting rod 29. The second rotary motor 13 can drive the sieve plate 7 to rotate, and the electric lifting rod 29 can drive the sieve plate 7 to rise and fall, preventing the sealing gasket at the bottom of the sieve plate 7 from being damaged during rotation.

[0049] As a technical optimization of the present invention, a second connecting block 9 is installed on the side of the cover plate 10 away from the first connecting block 6. A third rotary motor 14 is embedded in the top of the fixing ring 5 near the second connecting block 9. The output end of the third rotary motor 14 faces upward, and an electric telescopic rod 8 is installed on the output end of the third rotary motor 14. The telescopic end of the electric telescopic rod 8 faces upward, and the telescopic end of the electric telescopic rod 8 is connected to the bottom of the second connecting block 9. The third rotary motor 14 can drive the cover plate 10 to rotate, and the electric telescopic rod 8 can drive the cover plate 10 to rise and fall, which can prevent the sealing gasket at the bottom of the cover plate 10 from being damaged during the rotation of the cover plate 10.

[0050] As a technical optimization of the present invention, the agitation mechanism includes fixed rods 17 and scrapers 18. Multiple fixed rods 17 are evenly and movably mounted on the outer side of the rotating rod 15. Scrapers 18 are movably mounted on the end of each fixed rod 17 away from the rotating rod 15. The tops and bottoms of the multiple scrapers 18 in the same row abut against each other. The fixed rods 17 and scrapers 18 agitate the zirconium balls inside the grinding barrel 2, allowing the zirconium balls to grind the material.

[0051] As a technical optimization of the present invention, a plurality of first sliding grooves 21 are evenly provided on the outer side of the rotating rod 15, and a first electric slider 22 is installed on the end of the fixed rod 17 near the rotating rod 15. The first electric slider 22 is slidably installed inside the first sliding groove 21. By sliding the first electric slider 22 in the first sliding groove 21, the fixed rod 17 can be driven to move on the rotating rod 15, thereby allowing the scraper 18 to scrape the inner wall of the grinding barrel 2 at different heights.

[0052] As a technical optimization of the present invention, a first slot 24 is formed at the end of the fixed rod 17 away from the rotating rod 15. Second sliding grooves 25 are formed on the inner walls of both sides of the first slot 24. A second electric slider 26 is slidably installed inside the second sliding groove 25. A movable rod 23 is installed on the side of the scraper 18 near the fixed rod 17. The end of the movable rod 23 near the fixed rod 17 is movably installed inside the first slot 24. The side of the second electric slider 26 near the fixed rod 17 is connected to the fixed rod 17. By sliding the second electric slider 26 in the second sliding groove 25, the movable rod 23 can move inside the first slot 24, allowing the scraper 18 to operate to different usage positions according to different usage needs, increasing the ease of use of the device.

[0053] As a technical optimization of the present invention, a first baffle 19 is installed between each row of multiple first electric sliders 22, and a second baffle 20 is installed on each of the top and bottom first electric sliders 22 of each row. A second slot 27 is formed at the end of each second baffle 20 away from the first electric slider 22. A third baffle 28 is slidably installed inside the second slot 27. The end of the third baffle 28 away from the second baffle 20 is connected to the inner wall of the first slide groove 21. The first baffle 19, the second baffle 20, and the third baffle 28 can all slide inside the first slide groove 21. By blocking the first slide groove 21 with the first baffle 19, the second baffle 20, and the third baffle 28, the zirconium ball can be prevented from entering the interior of the first slide groove 21, ensuring the operational stability of the device.

[0054] As a technical optimization of the present invention, a grinding method for a vertical sand mill is provided. This grinding method is applicable to the aforementioned grinding tank, and the grinding method further includes the following steps:

[0055] Step 1: The electric telescopic rod 8 drives the cover plate 10 to extend upward to the preset height position. The third rotary motor 14 drives the cover plate 10 to rotate to the preset position. The electric lifting rod 29 drives the sieve plate 7 to rise to the preset height position. The second rotary motor 13 drives the sieve plate 7 to rotate in the opposite direction to the cover plate 10. The operator adds different zirconium balls into the grinding barrel 2 according to the grinding requirements. The material to be ground is added into the grinding barrel 2. The sieve plate 7 and the cover plate 10 cover the top of the grinding barrel 2 again in the reverse operation steps to complete the feeding.

[0056] Step 2: Rotate motor 3 to drive rotating rod 15 to rotate, so that fixed rod 17 and scraper 18 can stir the zircon balls inside grinding barrel 2. The zircon balls grind the material. During the grinding process, multiple scrapers 18 extend to different positions to increase the stirring effect of the device on the zircon balls, improve the grinding effect of the device on the material, and increase the grinding efficiency of the device.

[0057] Step 3: Open the solenoid valve inside the connecting pipe 11 and start the fan connected to the check valve 4. Blow air to the grinding barrel 2 through the check valve 4 with a preset air force to sweep the zircon balls and materials inside the grinding barrel, prevent the materials from sticking to the wall and caking at the bottom, and also cool the materials while making them roll, so as to achieve uniform grinding of the materials.

[0058] Step 4: After the material grinding is completed, the grinding barrel 2 is rotated to the use state with the opening facing down, and the cover plate 10 is rotated to the use state where it no longer abuts against the cover sieve plate 7. The ground material in the grinding barrel 2 will leak out of the interior of the grinding barrel 2 through the sieve hole 16 and fall into the pre-set container outside the device. During the material feeding process, the rotating rod 15 drives the fixed rod 17 and scraper 18 to rotate. The fixed rod 17 and scraper 18 move the zircon balls, which move the material between the gaps of the zircon balls, increasing its falling speed and making the falling process of the material smoother.

[0059] Step 5: During the feeding process, the scraper 18 can strike the screen plate 7. This operation method prevents the screen holes 16 from becoming blocked, which would affect the falling of the material and increase the ease of use of the device. The scraper 18 abuts against the inner wall of the grinding barrel 2, the rotating rod 15 rotates, and the fan connected to the check valve 4 blows air. The scraper 18 can scrape the inner wall of the grinding barrel 2. Combined with the air blowing inside the device by the fan, the residual material on the inner wall of the grinding barrel 2 is scraped off, increasing the feeding rate of the device and completing the cleaning of the inner wall of the grinding barrel 2.

[0060] Step Six: After the device is used, connect the outside of the connecting pipe 11 to the water pipe, rotate the grinding barrel 2 to the opening-down position, inject a preset amount of clean water into the grinding barrel 2 through the water pipe, rotate the rotating rod 15, and the fixed rod 17 and scraper 18 can stir the zirconium balls inside the grinding barrel 2. Combined with the scraper 18 scraping the inner wall of the grinding barrel 2, the inside of the grinding barrel 2 and the zirconium balls are cleaned. After cleaning, the wastewater can be discharged directly from the connecting pipe 11. Rotate the cover plate 10 to the position where it does not cover the sieve plate 7. Rotate the rotating rod 15 to make the fixed rod 17 and scraper 18 stir the zirconium balls. Combined with the blowing effect of the check valve 4, the cleaned zirconium balls and the inside of the grinding barrel 2 can achieve a rapid drying effect, which increases the ease of use of the device.

[0061] In use, all electrical devices in this device are powered by an external power source via wires. The device controls the electrical devices through a control system. The check valve 4 is connected to a pre-installed fan outside the device via a conduit, and the conduit is long enough to allow the grinding barrel 2 to operate. The connecting pipe 11 is equipped with a solenoid valve and can be connected to a water pipe. The grinding barrel 2 is equipped with zirconium balls, which grind the material by rotating the rotating rod 15. This is a mature existing technology, so it will not be described in detail here. A sealing gasket is provided at the position where the cover plate 10 abuts against the sieve plate 7, and a sealing gasket is provided at the contact point between the sieve plate 7 and the fixing ring 5. The specifications of the sieve plate 7 can be changed according to different grinding requirements.

[0062] When materials need to be ground, the electric telescopic rod 8 drives the cover plate 10 to extend upward to a preset height position. Then, the third rotary motor 14 drives the cover plate 10 to rotate to a preset position. The electric lifting rod 29 drives the screen plate 7 to rise to a preset height position. The second rotary motor 13 drives the screen plate 7 to rotate in the opposite direction to the cover plate 10. At this time, the top of the grinding barrel 2 opens. The operator can add different zirconium balls into the grinding barrel 2 according to the grinding requirements. The operator adds the material to be ground into the grinding barrel 2. Then, the screen plate 7 and the cover plate 10 cover the top of the grinding barrel 2 again in the reverse operation steps to complete the feeding.

[0063] Subsequently, the rotating rod 15 is rotated by the rotating motor 3, which causes the fixed rod 17 and the scraper 18 to agitate the zirconium balls inside the grinding barrel 2, thereby grinding the material. During the grinding process, the second electric slider 26 slides in the second groove 25, allowing multiple scrapers 18 to extend to different positions. This operation method allows the scrapers 18 to agitate the zirconium balls at different positions, which can increase the agitation effect of the device on the zirconium balls, thereby improving the grinding effect of the device on the material and increasing the grinding efficiency of the device.

[0064] During the grinding process, the solenoid valve inside the connecting pipe 11 opens, and the blower connected to the check valve 4 starts. The blower blows air through the check valve 4 to the grinding tank 2 at a preset speed, which can sweep the zircon balls and materials inside the grinding tank. This can prevent the materials from sticking to the walls and caking at the bottom. It can also cool the materials and make them roll, so as to achieve uniform grinding of the materials and greatly improve the production quality of the device. After the preset time of blowing, the blower connected to the check valve 4 stops blowing, and the solenoid valve installed in the connecting pipe 11 closes again.

[0065] After the material grinding is completed, the first rotary motor 12 drives the grinding barrel 2 to rotate, so that the grinding barrel 2 rotates to the use state with the opening facing downward. Then the cover plate 10 rotates to the use state where it no longer abuts against the cover sieve plate 7. At this time, the material that has been ground in the grinding barrel 2 will leak out of the interior of the grinding barrel 2 through the sieve hole 16 and fall into the pre-set container outside the device. During the material feeding process, the rotating rod 15 drives the fixed rod 17 and scraper 18 to rotate. The fixed rod 17 and scraper 18 move the zircon balls, which can move the material between the gaps of the zircon balls, increase its falling speed, and make the falling process of the material smoother.

[0066] During the feeding process, the first electric slider 22 slides in the first chute 21, allowing the scraper 18 to strike the screen plate 7. This operation method can prevent the screen holes 16 from becoming blocked, affecting the material falling and increasing the ease of use of the device. The movement of the movable rod 23 on the fixed rod 17 causes the scraper 18 to abut against the inner wall of the grinding barrel 2. Then, by rotating the rotating rod 15, the blower connected to the check valve 4 blows air, which allows the scraper 18 to scrape the inner wall of the grinding barrel 2. Combined with the blower blowing air into the device, this operation method can scrape off the residual material on the inner wall of the grinding barrel 2, increasing the feeding rate of the device and cleaning the inner wall of the grinding barrel 2.

[0067] After the device is used, the outside of the connecting pipe 11 is connected to the water pipe. Then the grinding barrel 2 is rotated to the use state with the opening facing down. The water pipe injects a preset amount of clean water into the grinding barrel 2. Then, by rotating the rotating rod 15, the fixed rod 17 and the scraper 18 can stir the zircon balls inside the grinding barrel 2. Combined with the scraper 18 scraping the inner wall of the grinding barrel 2, the inside of the grinding barrel 2 and the zircon balls can be cleaned. After cleaning, the wastewater can be discharged directly from the connecting pipe 11.

[0068] Then, the cover plate 10 is rotated to a state where it does not cover the screen plate 7. At this time, the rotating rod 15 rotates to make the fixed rod 17 and scraper 18 stir the zircon balls. Combined with the effect of the air blowing at the check valve 4, the cleaned zircon balls and the inside of the grinding barrel 2 can achieve a rapid drying effect, which increases the ease of use of the device.

[0069] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A grinding jar for a vertical sand mill, comprising a fixing frame (1), characterized in that, There are two fixed frames (1), and a grinding barrel (2) is movably installed between the two fixed frames (1). A rotating motor (3) is installed at the bottom of the grinding barrel (2). A rotating rod (15) is rotatably installed inside the grinding barrel (2). The output end of the rotating motor (3) movably passes through the bottom of the grinding barrel (2) and is connected to the rotating rod (15). Multiple check valves (4) are evenly embedded in the bottom of the grinding barrel (2). The check valves (4) are connected to the blower. A fixed ring (5) is installed on the top of the grinding barrel (2). A screening mechanism is provided on the fixed ring (5). An agitation mechanism is provided on the outside of the rotating rod (15). The screening mechanism includes a sieve plate (7) and a cover plate (10). The sieve plate (7) is movably installed on the top of the fixing ring (5). Multiple sieve holes (16) are evenly opened on the sieve plate (7). The cover plate (10) is movably installed above the sieve plate (7). A connecting pipe (11) is embedded in the top of the cover plate (10). The stirring mechanism includes a fixed rod (17) and a scraper (18). Multiple fixed rods (17) are evenly and movably installed on the outer side of the rotating rod (15). A scraper (18) is movably installed on the end of the fixed rod (17) away from the rotating rod (15). The top and bottom of the multiple scrapers (18) in the same row abut against each other. The outer side of the rotating rod (15) is provided with a plurality of first sliding grooves (21), and the fixed rod (17) is provided with a first electric slider (22) at one end near the rotating rod (15). The first electric slider (22) is slidably installed inside the first sliding groove (21). The fixed rod (17) has a first slot (24) at the end away from the rotating rod (15). The inner walls on both sides of the first slot (24) have second sliding grooves (25). The second sliding groove (25) is slidably installed inside the second sliding groove (25). The scraper (18) has a movable rod (23) installed on the side near the fixed rod (17). The end of the movable rod (23) near the fixed rod (17) is movably installed inside the first slot (24). The side of the second electric slider (26) near the fixed rod (17) is connected to the fixed rod (17). A first baffle (19) is installed between each column of multiple first electric sliders (22), and a second baffle (20) is installed at the top and bottom of each column of first electric sliders (22). A second slot (27) is opened at the end of the second baffle (20) away from the first electric slider (22). A third baffle (28) is slidably installed inside the second slot (27). The end of the third baffle (28) away from the second baffle (20) is connected to the inner wall of the first slide groove (21). The first baffle (19), the second baffle (20) and the third baffle (28) can all slide inside the first slide groove (21).

2. The grinding jar of a vertical sand mill according to claim 1, characterized in that, Both of the aforementioned mounting brackets (1) have a first rotary motor (12) embedded on the side near the grinding barrel (2), the output end of the first rotary motor (12) faces the grinding barrel (2), and the output end of the first rotary motor (12) is connected to the grinding barrel (2).

3. The grinding jar of a vertical sand mill according to claim 2, characterized in that, A first connecting block (6) is installed on one side of the sieve plate (7). A second rotary motor (13) is embedded in the top of the fixing ring (5) near the first connecting block (6). The output end of the second rotary motor (13) faces upward. An electric lifting rod (29) is embedded in the bottom of the first connecting block (6). The mounting end of the electric lifting rod (29) faces downward, and the output end of the second rotary motor (13) is connected to the mounting end of the electric lifting rod (29).

4. The grinding jar of a vertical sand mill according to claim 3, characterized in that, The cover plate (10) has a second connecting block (9) installed on the side away from the first connecting block (6). The fixing ring (5) has a third rotary motor (14) embedded in the top near the second connecting block (9). The output end of the third rotary motor (14) faces upward. An electric telescopic rod (8) is installed at the output end of the third rotary motor (14). The telescopic end of the electric telescopic rod (8) faces upward, and the telescopic end of the electric telescopic rod (8) is connected to the bottom of the second connecting block (9).

5. A grinding method using a vertical sand mill, characterized in that, The grinding method uses the grinding jar of claim 4 above, and the grinding method further includes the following steps: Step 1: The electric telescopic rod (8) drives the cover plate (10) to extend upward to the preset height position. The third rotary motor (14) drives the cover plate (10) to rotate to the preset position. The electric lifting rod (29) drives the sieve plate (7) to rise to the preset height position. The second rotary motor (13) drives the sieve plate (7) to rotate in the opposite direction to the cover plate (10). The staff adds different zirconium balls into the grinding barrel (2) according to the grinding requirements. The material to be ground is added into the grinding barrel (2). The sieve plate (7) and the cover plate (10) are covered on the top of the grinding barrel (2) again according to the reverse operation steps to complete the feeding. Step 2: Rotate the motor (3) to drive the rotating rod (15) to rotate, so that the fixed rod (17) and the scraper (18) can stir the zircon balls inside the grinding barrel (2), and the zircon balls grind the material. During the grinding process, multiple scrapers (18) extend to different usage positions. Step 3: Open the solenoid valve inside the connecting pipe (11), start the fan connected to the check valve (4), and blow the preset air force into the grinding tank (2) through the check valve (4) to blow away the zircon balls and materials inside the grinding tank; Step 4: After the material grinding is completed, the grinding barrel (2) is rotated to the use state with the opening facing down, and the cover plate (10) is rotated to the use state where it no longer abuts against the cover sieve plate (7). The material that has been ground in the grinding barrel (2) will leak out of the interior of the grinding barrel (2) through the sieve hole (16) and fall into the container set outside the device. During the material feeding process, the rotating rod (15) drives the fixed rod (17) and scraper (18) to rotate. The fixed rod (17) and scraper (18) move the zircon balls and move the material between the gaps of the zircon balls. Step 5: During the feeding process, the scraper (18) strikes the screen plate (7), the scraper (18) abuts against the inner wall of the grinding barrel (2), the rotating rod (15) rotates, the fan connected to the check valve (4) blows air, the scraper (18) scrapes the inner wall of the grinding barrel (2), and combined with the fan blowing air into the device, the residual material on the inner wall of the grinding barrel (2) is scraped off, thus completing the cleaning of the inner wall of the grinding barrel (2); Step 6: After the device is used, connect the outside of the connecting pipe (11) to the water pipe, rotate the grinding barrel (2) to the use state with the opening facing down, inject a preset amount of clean water into the grinding barrel (2) through the water pipe, rotate the rotating rod (15), and the fixed rod (17) and scraper (18) stir the zircon balls inside the grinding barrel (2). Combined with the scraper (18) scraping the inner wall of the grinding barrel (2), the inside of the grinding barrel (2) and the zircon balls are cleaned. After cleaning, the sewage can be discharged directly from the connecting pipe (11). Rotate the cover plate (10) to the use state without covering the sieve plate (7). Rotate the rotating rod (15) to make the fixed rod (17) and scraper (18) stir the zircon balls. Combined with the blowing effect at the check valve (4), the cleaned zircon balls and the inside of the grinding barrel (2) achieve a rapid drying effect.

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