Grinding device for producing ceramsite sand from urban sludge

Abstract

The application belongs to the technical field of grinding and provides a grinding device for producing ceramsite sand from urban sludge, which is composed of a base and fixed frames A, B and C. A bearing cylinder is installed on the fixed frame A, a top rotary support ring seat is installed, the inner ring has a porous grinding plate, the bottom is rotatably connected with a crushing shaft, and a crushing knife is arranged on the upper end of the shaft. A power transmission pipe is rotatably installed on the fixed frame B, and a slidable corner column is arranged in the pipe. The corner column is connected with a push-pull cylinder A and an adjusting arm, and a grinding rod is arranged on the rod. A pre-grinding cylinder is connected with the fixed frame B, a transmission grinding shaft and a grinding column are arranged in the middle, a grinding cylinder is slidably connected with the inner wall, a push-pull cylinder B and a powder guide pipe are arranged at the bottom. A driving assembly is connected with all components to realize initial grinding, fine grinding and crushing of raw materials. Through multi-stage grinding and flexible adjustment mechanism, the grinding quality and processing efficiency of raw materials are significantly improved, and efficient and high-quality ceramsite sand production is ensured.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of grinding, and particularly relates to a grinding device for producing ceramsite sand from urban sludge. BACKGROUND

[0002] With the acceleration of urbanization and the widespread use of sewage treatment facilities, urban sewage treatment plants produce a large amount of sludge every year. These sludge contains rich organic matter and minerals, but also contains heavy metals, pathogens and harmful chemicals, which will cause serious environmental pollution if not properly treated. Traditional treatment methods mainly include landfill, incineration and land use, but these methods have many drawbacks, such as occupying a large amount of land resources, causing secondary pollution and high treatment cost. Therefore, how to efficiently and environmentally treat and utilize urban sludge has become a problem to be solved.

[0003] In recent years, researchers have begun to explore the conversion of urban sludge into valuable building materials, such as ceramsite sand, to achieve resource recycling. Ceramsite sand is widely used in the construction industry due to its light weight, high strength, and good thermal insulation performance. However, traditional ceramsite sand production processes usually rely on natural mineral raw materials, which not only consume natural resources but also increase production costs. Through research, it is found that using urban sludge as raw material to produce ceramsite sand can not only effectively solve the sludge disposal problem, but also reduce the production cost of ceramsite sand, realize waste resource utilization, and have significant economic and environmental benefits.

[0004] However, the existing device cannot effectively and reasonably grind the raw materials in multiple stages and flexibly adjust, affecting the grinding quality and processing efficiency of the raw materials. Therefore, in view of the above status, it is urgent to develop a grinding device for producing ceramsite sand from urban sludge to overcome the deficiencies in current practical applications. SUMMARY

[0005] The purpose of the present application is to provide a grinding device for producing ceramsite sand from urban sludge, which aims to solve the problems mentioned in the background.

[0006] The present application is implemented as follows: a grinding device for producing ceramsite sand from urban sludge, comprising a base, a fixed frame A and a fixed frame B fixed thereon, and a fixed frame C fixed on the fixed frame B, further comprising:

[0007] A bearing cylinder is installed and fixed on the fixed frame A, and a support ring seat is rotatably installed on the top of the bearing cylinder, and a perforated grinding plate is fixed on the inner ring of the support ring seat; a breaking shaft is rotatably installed in the middle of the bottom of the bearing cylinder, and a breaking knife matched with the lower side of the perforated grinding plate is fixed on the upper end of the breaking shaft;

[0008] Power transmission pipe, the power transmission pipe is rotatably mounted on the fixed frame B, the inner side of the power transmission pipe is slidably provided with an angle column, the upper end of the angle column is rotatably connected with the telescopic end of the push-pull cylinder A, the push-pull cylinder A is further fixedly connected with the fixed frame C, the lower end of the angle column is fixedly provided with an adjusting arm, and the adjusting arm is provided with a grinding rod matched with the multi-hole grinding plate;

[0009] Pre-grinding cylinder, the pre-grinding cylinder is fixedly connected with the fixed frame B, a transmission grinding shaft is rotatably mounted in the middle of the pre-grinding cylinder, a grinding column is fixedly mounted on the transmission grinding shaft in the inner side of the pre-grinding cylinder, and a grinding cylinder matched with the grinding column is slidably mounted on the inner wall of the pre-grinding cylinder; the bottom of the pre-grinding cylinder is further provided with a push-pull cylinder B fixedly connected with the inner wall of the pre-grinding cylinder; the bottom of the pre-grinding cylinder is further provided with a powder guide pipe for feeding the multi-hole grinding plate.

[0010] Drive assembly, the drive assembly is in transmission connection with the transmission grinding shaft, the power transmission pipe, the breaking shaft and the support ring seat, the drive assembly is used for driving the transmission grinding shaft to rotate, so that the grinding column and the grinding cylinder cooperate to preliminarily grind the raw materials, the drive assembly is further used for driving the support ring seat to rotate reversely relative to the power transmission pipe and the breaking shaft, so that the grinding rod and the multi-hole grinding plate cooperate to finely grind the raw materials, and the breaking knife breaks the raw materials falling from the multi-hole grinding plate.

[0011] Further technical scheme, the bearing cylinder adopts a cylindrical structure, an annular protruding part is integrally formed on the inner side of the upper end of the bearing cylinder, an annular groove is formed in the top of the annular protruding part, and a bottom support ring matched with the annular groove is fixedly arranged on the bottom of the support ring seat.

[0012] Further technical scheme, the multi-hole grinding plate adopts a middle arc-shaped concave structure, a material guide ring is further fixedly arranged on the top of the support ring seat, and the material guide ring is smoothly and transitionally connected with the multi-hole grinding plate; the breaking knife adopts an arc-shaped structure matched with the multi-hole grinding plate, and a plurality of breaking knives are uniformly and circumferentially arranged on the upper end of the breaking shaft.

[0013] Further technical scheme, the inner cavity bottom of the bearing cylinder is obliquely arranged, a powder outlet pipe is arranged on the side wall of the bearing cylinder on the side of the lower inner cavity bottom, and an end cover is detachably arranged on the end of the powder outlet pipe.

[0014] Further technical scheme, the breaking shaft, the push-pull cylinder A, the angle column and the power transmission pipe are coaxially arranged with the bearing cylinder; the cross section of the angle column is a regular polygon; the adjusting arm comprises an outer cylinder, a fastening bolt and an inner rod, the lower end of the angle column is fixedly provided with the outer cylinder, the inner rod is slidably arranged in the outer cylinder, the upper end of the grinding rod is fixedly connected with the inner rod, and the outer cylinder is further provided with the fastening bolt for locking and fixing the inner rod.

[0015] In a further technical solution, the grinding rod includes an inner column, an outer column, a spring, and a limiting plate. The lower end of the outer column is a hemispherical structure, and a cavity is opened on the inner side of the outer column. The limiting plate is slidably arranged in the cavity. A spring is provided on the lower side of the limiting plate for elastic support of the limiting plate. The inner column is fixed on the upper side of the limiting plate, and the upper end of the inner column is fixedly connected to the internal rod of the adjusting arm.

[0016] In a further technical solution, the outer cylinder and the inner rod are arranged perpendicularly to the grinding rod; the cross-section of the inner column is a regular polygon.

[0017] A further technical solution is provided, wherein the pre-grinding cylinder adopts a closed cylindrical structure, and a feed hopper is installed at the upper end of the pre-grinding cylinder; a material-pushing plate that mates with the bottom of the inner cavity of the pre-grinding cylinder is also fixed on the transmission grinding shaft; the upper part of the grinding column is a top conical section B, and the lower part of the grinding column is a bottom straight cylindrical section B of a cylindrical structure; the upper part of the grinding cylinder is a top conical section A, and the middle part of the grinding cylinder is a middle conical section corresponding to the top conical section B, and the distance between the upper ends of the middle conical section and the top conical section B is greater than the distance between their lower ends; the lower part of the grinding cylinder is a bottom straight cylindrical section A of a cylindrical structure, which corresponds to the bottom straight cylindrical section B, and the inner diameter of the bottom straight cylindrical section A is greater than the outer diameter of the bottom straight cylindrical section B.

[0018] A further technical solution includes a drive assembly comprising a power wheel A, a transmission component A, a power wheel B, a gear, a gear ring, a power wheel C, a transmission component B, a power wheel D, and a motor. The lower side of the pre-grinding cylinder is fixed to the transmission grinding shaft with a gear and a power wheel B respectively. A gear ring, meshing with the gear, is fixed to the outer side of the support ring seat. Power wheel A is fixed to the crushing shaft, and power wheel A is connected to power wheel B via transmission component A. The upper side of the pre-grinding cylinder is fixed to the transmission grinding shaft with a power wheel C, and power wheel C is connected to power wheel D via transmission component B. Power wheel D is fixed to the power transmission pipe. A motor, connected to the upper end of the transmission grinding shaft, is also mounted on the fixing frame B.

[0019] In a further technical solution, the upper and lower ends of the transmission grinding shaft are rotatably connected to the fixed frame B and the base respectively, and the lower end of the crushing shaft is also rotatably connected to the base; the power wheels A, B, C and D are pulleys or sprockets, and the corresponding transmission components A and B are belts or transmission chains.

[0020] The grinding device for producing ceramsite sand from urban silt provided by this invention has the following beneficial effects:

[0021] By incorporating specific components within the pre-grinding cylinder, the raw materials can be initially ground. Next, the synergistic effect of the grinding rod and the porous grinding plate enables fine grinding of the materials. Finally, a crushing blade is used to further break down the materials, significantly improving the overall quality of the grinding process.

[0022] In addition, the device is designed with a push-pull cylinder A, which can adjust the height of the grinding rod by controlling the raising and lowering of the corner column, and change the tilt angle of the grinding rod by adjusting the length of the adjusting arm, thereby optimizing the fit between the grinding rod and the porous grinding plate. At the same time, push-pull cylinder B can drive the grinding cylinder to move up and down, which not only improves the feeding efficiency, but also enhances the grinding effect between the grinding cylinder and the grinding column.

[0023] This equipment employs a single drive assembly, enabling the transmission grinding shaft, power transmission tube, crushing shaft, and support ring to rotate synchronously, while the support ring rotates in the opposite direction relative to the power transmission tube and crushing shaft. This design further enhances the grinding effect between the grinding rod and the porous grinding plate, as well as the crushing efficiency of the crushing blade on the raw materials, ensuring high-quality output throughout the entire processing.

[0024] In summary, this invention significantly improves the grinding quality and processing efficiency of raw materials through multi-stage grinding and flexible adjustment mechanisms, ensuring efficient and high-quality production of ceramsite sand. Attached Figure Description

[0025] Figure 1 A schematic diagram of the overall structure of a grinding device for producing ceramsite sand from urban silt, provided in an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the main structure of a grinding device for producing ceramsite sand using urban silt, provided in an embodiment of the present invention.

[0027] Figure 3 An isometric view of the bearing cylinder and its upper component in the grinding device for producing ceramsite sand from urban silt provided in an embodiment of the present invention;

[0028] Figure 4 for Figure 3 Enlarged structural diagram of the grinding rod section;

[0029] Figure 5 for Figure 3 A magnified structural diagram of part A in the middle;

[0030] Figure 6 An isometric view of the pre-grinding cylinder portion in a grinding device for producing ceramsite sand from urban silt, provided in an embodiment of the present invention.

[0031] Figure 7 for Figure 6 A schematic diagram of the mating structure of the grinding cylinder and the grinding column.

[0032] In the diagram: 1-Powder outlet pipe, 2-Base base, 3-Power wheel A, 4-Crushing shaft, 5-Fixed frame A, 6-Transmission component A, 7-Power wheel B, 8-Fixed frame B, 9-Transmission grinding shaft, 10-Gear, 11-Support block, 12-Pre-grinding cylinder, 13-Feed hopper, 14-Power wheel C, 15-Motor, 16-Fixed frame C, 17-Push-pull cylinder A, 18-Angle column, 19-Power transmission pipe, 20-Transmission component B, 21-Power wheel D, 22-Adjusting arm, 23-Grinding rod, 24-Guide ring, 25-Gear ring, 26-Powder guide pipe, 27- 28-Outer cylinder, 29-Fasting bolt, 30-Inner rod, 31-Support ring seat, 32-Perforated grinding plate, 33-End cap, 34-Crushing blade, 35-Inner column, 36-Outer column, 37-Cavity, 38-Spring, 39-Limiting plate, 40-Annular protrusion, 41-Annular groove, 42-Bottom support ring, 43-Grinding cylinder, 44-Top conical section A, 45-Middle conical section, 46-Bottom straight section A, 47-Grinding column, 48-Top conical section B, 49-Bottom straight section B, 50-Push-pull cylinder B. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0034] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0035] like Figures 1-7 As shown, this is a grinding device for producing ceramsite sand from urban silt, provided in one embodiment of the present invention. It grinds large pieces of silt into smaller particles, which are used as one of the raw materials for producing ceramsite sand (mixed with other raw materials in a certain proportion, such as clay, shale, fly ash, etc., which not only adjusts the chemical composition and physical properties of the mixture but also optimizes the reaction conditions during sintering, thereby producing high-quality ceramsite sand). The device includes a base 2 and fixed frames A5 and B8 on it. A fixed frame C16 is also fixed on the fixed frame B8. The device also includes:

[0036] The bearing cylinder 27 is mounted and fixed on the fixing frame A5. A support ring seat 31 is rotatably mounted on the top of the bearing cylinder 27. A perforated grinding plate 32 is fixed on the inner ring of the support ring seat 31. A crushing shaft 4 is rotatably mounted on the middle of the bottom of the bearing cylinder 27. A crushing blade 34 that cooperates with the lower side of the perforated grinding plate 32 is fixed on the upper end of the crushing shaft 4.

[0037] A power transmission pipe 19 is rotatably mounted on a fixed frame B8. An angle post 18 is slidably provided on the inner side of the power transmission pipe 19. The upper end of the angle post 18 is rotatably connected to the telescopic end of the push-pull cylinder A17. The push-pull cylinder A17 is also fixedly connected to the fixed frame C16. An adjusting arm 22 is fixed to the lower end of the angle post 18. A grinding rod 23 that cooperates with the porous grinding plate 32 is mounted on the adjusting arm 22.

[0038] A pre-grinding cylinder 12 is fixedly connected to a fixed frame B8. A transmission grinding shaft 9 is installed through the middle of the pre-grinding cylinder 12. A grinding column 47 is fixedly installed on the transmission grinding shaft 9 on the inner side of the pre-grinding cylinder 12. A grinding cylinder 43 that cooperates with the grinding column 47 is slidably installed on the inner wall of the pre-grinding cylinder 12. A push-pull cylinder B51 is also fixedly installed at the bottom of the grinding cylinder 43. The push-pull cylinder B51 is also fixedly connected to the inner wall of the pre-grinding cylinder 12. The push-pull cylinder B51 and the push-pull cylinder A17 can be hydraulic cylinders or electric telescopic cylinders, and there is no limitation. A powder guide pipe 26 for feeding material to the porous grinding plate 32 is also installed at the bottom of the pre-grinding cylinder 12.

[0039] The drive assembly is connected to the transmission grinding shaft 9, the power transmission pipe 19, the crushing shaft 4, and the support ring seat 31. The drive assembly drives the transmission grinding shaft 9 to rotate, so that the grinding column 47 and the grinding cylinder 43 cooperate to perform preliminary grinding of the raw material. At the same time, the drive assembly also drives the support ring seat 31 to rotate in the opposite direction to the power transmission pipe 19 and the crushing shaft 4, so that the grinding rod 23 and the porous grinding plate 32 cooperate to perform fine grinding of the raw material, and the crushing blade 34 crushes the raw material falling from the porous grinding plate 32.

[0040] In this embodiment of the invention, the raw material can be initially ground by setting specific components inside the pre-grinding cylinder 12. Next, the raw material is finely ground by utilizing the synergistic effect of the grinding rod 23 and the porous grinding plate 32. Finally, the raw material is further crushed by using the crushing blade 34, thereby significantly improving the overall quality of the grinding process.

[0041] In addition, the device is designed with a push-pull cylinder A17, which can adjust the height of the grinding rod 23 by controlling the lifting and lowering of the corner column 18, and change the tilt angle of the grinding rod 23 by adjusting the length of the adjusting arm 22, thereby optimizing the fit between the grinding rod 23 and the porous grinding plate 32. At the same time, the push-pull cylinder B51 can drive the grinding cylinder 43 to move up and down, which not only improves the feeding efficiency, but also enhances the grinding effect between the grinding cylinder 43 and the grinding column 47.

[0042] The equipment employs a single drive assembly, enabling the transmission grinding shaft 9, power transmission pipe 19, crushing shaft 4, and support ring seat 31 to rotate synchronously, while the support ring seat 31 rotates in the opposite direction relative to the power transmission pipe 19 and crushing shaft 4. This design further enhances the grinding effect between the grinding rod 23 and the porous grinding plate 32, as well as the crushing efficiency of the crushing blade 34 on the raw materials, ensuring high-quality output throughout the entire processing.

[0043] In summary, this invention significantly improves the grinding quality and processing efficiency of raw materials through multi-stage grinding and flexible adjustment mechanisms, ensuring efficient and high-quality production of ceramsite sand.

[0044] like Figures 1-5 As shown, in a preferred embodiment of the present invention, the bearing cylinder 27 adopts a cylindrical structure, and multiple fixing frames A5 are provided on the outside of the bearing cylinder 27. The fixing frames A5 adopt an L-shaped structure, the horizontal end of the fixing frame A5 is fixedly connected to the outer wall of the bearing cylinder 27, and the lower end of the vertical part of the fixing frame A5 is fixedly connected to the base 2, thereby providing stable support for the bearing cylinder 27.

[0045] The upper inner side of the bearing cylinder 27 is integrally formed with an annular protrusion 40, and the top of the annular protrusion 40 is provided with an annular groove 41. The bottom of the support ring seat 31 is fixed with a bottom support ring 42 that is rotatably connected to the annular groove 41, so that the support ring seat 31 can rotate stably.

[0046] The porous grinding plate 32 adopts a centrally concave arc-shaped structure, and a guide ring 24 is fixed to the top of the support ring seat 31. The guide ring 24 is smoothly connected to the porous grinding plate 32, ensuring that the raw material flows smoothly into the inner side of the porous grinding plate 32. In addition, the aperture of the porous grinding plate 32 is not limited and can be set independently according to the grinding requirements.

[0047] The crushing blade 34 adopts an arc-shaped structure that cooperates with the porous grinding plate 32. Multiple crushing blades 34 are evenly distributed around the upper end of the crushing shaft 4, so that the material ground from the porous grinding plate 32 can be crushed by the crushing blade 34, thereby improving the grinding and refining effect.

[0048] The bottom of the inner cavity of the bearing cylinder 27 is inclined. A powder outlet pipe 1 is installed on the side wall of the bearing cylinder 27 on the lower side of the bottom of the inner cavity. An end cap 33 is detachably installed at the end of the powder outlet pipe 1 to facilitate the discharge of processed materials.

[0049] The crushing shaft 4, push-pull cylinder A17, corner column 18, and power transmission pipe 19 are coaxially arranged with the bearing cylinder 27 to ensure reliable transmission. The corner column 18 has a regular polygonal cross-section, allowing the power transmission pipe 19 to stably transmit power through it. The corner column 18 is rotatably connected to the push-pull cylinder A17, and its lifting and rotation do not interfere with each other. Furthermore, the fixing frame C16 can be arranged in an L-shape, with the fixing method referring to that of the fixing frame A5 and the bearing cylinder 27, and will not be elaborated further.

[0050] like Figure 2 As shown, the adjusting arm 22 includes an outer cylinder 28, fastening bolts 29, and an inner rod 30. The lower end of the corner post 18 is fixed to the outer cylinder 28, and the inner rod 30 is slidably disposed inside the outer cylinder 28. The upper end of the grinding rod 23 is fixedly connected to the inner rod 30. The outer cylinder 28 is also equipped with fastening bolts 29 for locking and fixing the inner rod 30. Furthermore, the outer cylinder 28 and the inner rod 30 are arranged perpendicularly to the grinding rod 23. By adjusting the extension and retraction of the adjusting arm 22, the tilt angle of the grinding rod 23 can be changed, thereby adaptively adjusting the grinding process, ensuring stability and reliability.

[0051] like Figure 4 As shown, the grinding rod 23 includes an inner column 35, an outer column 36, a spring 38, and a limiting plate 39. The lower end of the outer column 36 has a hemispherical structure, and a cavity 37 is formed on the inner side of the outer column 36. The limiting plate 39 is slidably disposed in the cavity 37. A spring 38 is provided on the lower side of the limiting plate 39 for elastic support of the limiting plate 39. The inner column 35 is fixed on the upper side of the limiting plate 39. The cross-section of the inner column 35 is a regular polygon, and the upper end of the inner column 35 is fixedly connected to the inner rod 30 of the adjusting arm 22. When the corner column 18 descends, the outer column 36 rises, and the spring 38 is compressed, so that the outer column 36 can reliably abut against the porous grinding plate 32, improving the grinding effect. The inner column 35 and the outer column 36 are designed to be unable to rotate, ensuring the reliability of the grinding.

[0052] like Figure 1 , Figure 6 and Figure 7 As shown, in a preferred embodiment of the present invention, the pre-grinding cylinder 12 adopts a closed cylindrical structure. The pre-grinding cylinder 12 is fixedly connected to the fixing frame B8 through the support block 11. The upper end of the pre-grinding cylinder 12 is equipped with a feed hopper 13, which is used for adding raw materials.

[0053] The upper part of the grinding column 47 is a top conical section B48, and the lower part is a cylindrical bottom straight section B49. The upper part of the grinding cylinder 43 is a top conical section A44, and the middle part of the grinding cylinder 43 is a middle conical section 45 corresponding to the top conical section B48. The distance between the upper ends of the middle conical section 45 and the top conical section B48 is greater than the distance between their lower ends, which facilitates material falling and grinding. The lower part of the grinding cylinder 43 is a cylindrical bottom straight section A46, which corresponds to the bottom straight section B49. The inner diameter of the bottom straight section A46 is greater than the outer diameter of the bottom straight section B49. The specific spacing is arranged as needed to meet the grinding requirements. In addition, multiple push-pull cylinders B51 can be arranged circumferentially to meet the requirement of stably driving the grinding cylinder 43 to rise and fall. During operation, the top conical section A44 facilitates the entry of raw materials between the middle conical section 45 and the top conical section B48 for grinding. The interaction between the middle conical section 45 and the top conical section B48, and between the bottom straight cylindrical section A46 and the bottom straight cylindrical section B49, enables grinding. At the same time, the push-pull cylinder B51 drives the grinding cylinder 43 to rise and fall, which improves the overall grinding efficiency and quality, and avoids material jamming.

[0054] In addition, a material feeding plate 50 that cooperates with the bottom of the inner cavity of the pre-grinding cylinder 12 is fixed on the transmission grinding shaft 9. The material feeding plate 50 facilitates the discharge of the material from the pre-grinding cylinder 12 through the powder guiding pipe 26.

[0055] like Figure 1 As shown, in a preferred embodiment of the present invention, the drive assembly includes a power wheel A3, a transmission component A6, a power wheel B7, a gear 10, a gear ring 25, a power wheel C14, a transmission component B20, a power wheel D21, and a motor 15. The gear 10 and the power wheel B7 are respectively fixed on the lower side of the pre-grinding cylinder 12 to the transmission grinding shaft 9. A gear ring 25, meshing with the gear 10, is fixed on the outer side of the support ring seat 31. The power wheel A3 is fixed on the crushing shaft 4, and the power wheel A3 is connected to the power wheel B7 via the transmission component A6. The power wheel C14 is fixed on the upper side of the pre-grinding cylinder 12 to the transmission grinding shaft 9, and the power wheel C14 is connected to the power wheel D21 via the transmission component B20. The power wheel D21 is fixed to the power transmission pipe 19. A motor 15, which is connected to the upper end of the transmission grinding shaft 9, is also installed on the fixing frame B8.

[0056] In addition, the fixed frame B8 can be arranged in an L-shaped structure. The pre-grinding cylinder 12 is fixedly connected to the vertical part of the fixed frame B8 through the support block 11. The motor 15, the fixed frame C16, and the power transmission pipe 19 are all arranged on the horizontal part of the fixed frame B8, which will not be described in detail.

[0057] Preferably, the upper and lower ends of the transmission grinding shaft 9 are rotatably connected to the fixed frame B8 and the base 2, respectively, and the lower end of the crushing shaft 4 is also rotatably connected to the base 2, thus ensuring the stability of the transmission grinding shaft 9 and the crushing shaft 4.

[0058] Preferably, the drive wheels A3, B7, C14 and D21 are pulleys or sprockets, and the corresponding transmission components A6 and B20 are belts or transmission chains, etc., without further description or limitation.

[0059] In application, the meshing of gear 10 and gear ring 25, along with the arrangement of drive wheel A3, transmission component A6, drive wheel B7, drive wheel C14, transmission component B20, and drive wheel D21, allows the power transmission pipe 19 and the crushing shaft 4 to rotate in the same direction, while the support ring seat 31 rotates in the opposite direction to the power transmission pipe 19 and the crushing shaft 4, thus improving the quality of the grinding process. Furthermore, a single motor 15 enables multiple drives, ensuring stability and reliability. The dimensions of gear 10, gear ring 25, drive wheel C14, drive wheel D21, drive wheel A3, and drive wheel B7 can be adjusted as needed to change the relative speed and improve the grinding effect; further details are omitted here.

[0060] The above embodiments of the present invention provide a grinding device for producing ceramsite sand from urban silt. Through multi-stage grinding and a flexible adjustment mechanism, it achieves efficient and high-quality raw material processing. The working principle is as follows:

[0061] The raw materials are added through the feed hopper 13 at the top of the pre-grinding cylinder 12.

[0062] The transmission grinding shaft 9 drives the grinding column 47 mounted on it to rotate, which cooperates with the grinding cylinder 43 fixed on the inner wall of the pre-grinding cylinder 12 to perform preliminary grinding of the raw material.

[0063] The push-pull cylinder B51 drives the grinding cylinder 43 to move up and down, ensuring that the material passes through smoothly and improving the grinding efficiency.

[0064] After preliminary grinding, the material enters the porous grinding plate 32 through the powder guide pipe 26.

[0065] The rotation of the support ring seat 31 drives the porous grinding plate 32 to rotate, while the grinding rod 23 adjusts its position and angle through the adjusting arm 22, closely cooperating with the porous grinding plate 32 to perform fine grinding on the material.

[0066] The material falling from the porous grinding plate 32 is crushed by the crushing blade 34 fixed at the upper end of the crushing shaft 4, further refining the particles.

[0067] The motor 15 achieves synchronous rotation of the grinding shaft 9, power transmission pipe 19, crushing shaft 4 and support ring seat 31 through a series of power wheels (such as power wheel A3, power wheel B7, power wheel C14 and power wheel D21) and transmission components (such as transmission component A6 and transmission component B20).

[0068] The support ring seat 31 rotates in the opposite direction to the power transmission pipe 19 and the crushing shaft 4, which optimizes the fit between the grinding rod 23 and the porous grinding plate 32 and improves the overall grinding quality.

[0069] In addition, the push-pull cylinder A17 adjusts the height of the grinding rod 23 via the angle post 18. The tilt angle of the grinding rod 23 is changed by adjusting the length of the adjusting arm 22 to ensure optimal grinding results.

[0070] The material, after being ground and crushed multiple times, is discharged through the powder outlet pipe 1 at the bottom of the bearing cylinder 27.

[0071] The control of each component can be achieved using a PLC controller disclosed in the existing technology. There are no specific limitations on the model and circuit connection of each component, and they can be flexibly set in actual applications.

[0072] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this invention does not involve any improvement to the software and methods.

[0073] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A grinding device for producing ceramsite sand using urban silt, comprising a base (2) and fixed frames A (5) and B (8) thereon, wherein a fixed frame C (16) is also fixed on the fixed frame B (8), characterized in that, Also includes: The bearing cylinder (27) is mounted and fixed on the fixing frame A (5). A support ring seat (31) is rotatably mounted on the top of the bearing cylinder (27). A perforated grinding plate (32) is fixed on the inner ring of the support ring seat (31). A crushing shaft (4) is rotatably mounted on the bottom of the bearing cylinder (27). A crushing blade (34) that cooperates with the lower side of the perforated grinding plate (32) is fixed on the upper end of the crushing shaft (4). A power transmission pipe (19) is rotatably mounted on a fixed frame B (8). An angle post (18) is slidably provided on the inner side of the power transmission pipe (19). The upper end of the angle post (18) is rotatably connected to the telescopic end of the push-pull cylinder A (17). The push-pull cylinder A (17) is also fixedly connected to the fixed frame C (16). An adjusting arm (22) is fixed at the lower end of the angle post (18). A grinding rod (23) that cooperates with the porous grinding plate (32) is installed on the adjusting arm (22). A pre-grinding cylinder (12) is fixedly connected to a fixed frame B (8). A transmission grinding shaft (9) is installed through the middle of the pre-grinding cylinder (12). A grinding column (47) is fixedly installed on the transmission grinding shaft (9) on the inner side of the pre-grinding cylinder (12). A grinding cylinder (43) that cooperates with the grinding column (47) is slidably installed on the inner wall of the pre-grinding cylinder (12). A push-pull cylinder B (51) is also fixed at the bottom of the grinding cylinder (43). The push-pull cylinder B (51) is also fixedly connected to the inner wall of the pre-grinding cylinder (12). A powder guide pipe (26) for conveying material to the porous grinding plate (32) is also installed at the bottom of the pre-grinding cylinder (12). The drive assembly is connected to the transmission grinding shaft (9), the power transmission pipe (19), the crushing shaft (4), and the support ring seat (31). The drive assembly is used to drive the transmission grinding shaft (9) to rotate, so that the grinding column (47) and the grinding cylinder (43) cooperate to perform preliminary grinding of the raw material. At the same time, the drive assembly is also used to drive the support ring seat (31) to rotate in the opposite direction to the power transmission pipe (19) and the crushing shaft (4), so that the grinding rod (23) and the porous grinding plate (32) cooperate to perform fine grinding of the raw material, and the crushing blade (34) crushes the raw material falling from the porous grinding plate (32). The adjusting arm (22) includes an outer cylinder (28), fastening bolts (29) and an inner rod (30). The lower end of the corner post (18) is fixed with the outer cylinder (28), and the inner rod (30) is slidably provided inside the outer cylinder (28). The upper end of the grinding rod (23) is fixedly connected to the inner rod (30). The outer cylinder (28) is also equipped with fastening bolts (29) for locking and fixing the inner rod (30). The grinding rod (23) includes an inner column (35), an outer column (36), a spring (38), and a limiting plate (39); The lower end of the outer column (36) is a hemispherical structure. A cavity (37) is provided on the inner side of the outer column (36). A limiting plate (39) is slidably provided in the cavity (37). A spring (38) for elastic support of the limiting plate (39) is provided on the lower side of the limiting plate (39). An inner column (35) is fixed on the upper side of the limiting plate (39). The upper end of the inner column (35) is fixedly connected to the inner rod (30) of the adjusting arm (22).

2. The grinding device for producing ceramsite sand from urban silt according to claim 1, characterized in that, The bearing cylinder (27) adopts a cylindrical structure. The inner side of the upper end of the bearing cylinder (27) is integrally formed with an annular protrusion (40), and the top of the annular protrusion (40) is provided with an annular groove (41). The bottom of the support ring seat (31) is fixed with a bottom support ring (42) that is rotatably connected to the annular groove (41).

3. The grinding device for producing ceramsite sand from urban silt according to claim 2, characterized in that, The porous grinding plate (32) adopts a central arc-shaped concave structure, and a guide ring (24) is fixed on the top of the support ring seat (31). The guide ring (24) and the porous grinding plate (32) are smoothly connected. The crushing blade (34) adopts an arc-shaped structure that matches the porous grinding plate (32), and multiple crushing blades (34) are evenly distributed around the upper end of the crushing shaft (4).

4. The grinding device for producing ceramsite sand from urban silt according to claim 1, characterized in that, The bottom of the inner cavity of the bearing cylinder (27) is inclined. A powder outlet pipe (1) is installed on the side wall of the bearing cylinder (27) on the lower side of the bottom of the inner cavity. An end cap (33) is detachably installed at the end of the powder outlet pipe (1).

5. The grinding device for producing ceramsite sand from urban silt according to claim 3, characterized in that, The crushing shaft (4), push-pull cylinder A (17), corner column (18) and power transmission pipe (19) are arranged coaxially with the bearing cylinder (27); The cross-section of the corner prism (18) is a regular polygon.

6. The grinding apparatus for producing ceramsite sand from urban silt according to claim 5, characterized in that, The outer cylinder (28) and the inner rod (30) are arranged perpendicular to the grinding rod (23); The cross-section of the inner column (35) is a regular polygon.

7. The grinding apparatus for producing ceramsite sand from urban silt according to any one of claims 1-6, characterized in that, The pre-grinding cylinder (12) adopts a closed cylindrical structure, and a feed hopper (13) is installed at the upper end of the pre-grinding cylinder (12). The transmission grinding shaft (9) is also fixed with a material feeding plate (50) that cooperates with the bottom of the inner cavity of the pre-grinding cylinder (12). The upper part of the grinding column (47) is a top conical section B (48), and the lower part of the grinding column (47) is a bottom straight cylindrical section B (49) with a cylindrical structure. The upper part of the grinding cylinder (43) is a top conical section A (44), and the middle part of the grinding cylinder (43) is a middle conical section (45) corresponding to the top conical section B (48). The distance between the upper ends of the middle conical section (45) and the top conical section B (48) is greater than the distance between their lower ends. The lower part of the grinding cylinder (43) is a cylindrical bottom straight section A (46) with a cylindrical body structure. The bottom straight section A (46) corresponds to the bottom straight section B (49), and the inner diameter of the bottom straight section A (46) is larger than the outer diameter of the bottom straight section B (49).

8. The grinding apparatus for producing ceramsite sand from urban silt according to any one of claims 1-6, characterized in that, The drive assembly includes a drive wheel A (3), a transmission component A (6), a drive wheel B (7), a gear (10), a gear ring (25), a drive wheel C (14), a transmission component B (20), a drive wheel D (21), and a motor (15). The lower side of the pre-grinding cylinder (12) is fixed with a gear (10) and a power wheel B (7) on the transmission grinding shaft (9), and the outer side of the support ring seat (31) is fixed with a gear ring (25) that meshes with the gear (10). The crushing shaft (4) is fixed with a power wheel A (3), which is connected to the power wheel B (7) via a transmission component A (6). The upper side of the pre-grinding cylinder (12) is fixed with a power wheel C (14) on the transmission grinding shaft (9). The power wheel C (14) is connected to the power wheel D (21) through the transmission component B (20). The power wheel D (21) is fixed on the power transmission pipe (19). The fixed frame B (8) is also equipped with a motor (15) that is connected to the upper end of the transmission grinding shaft (9).

9. The grinding apparatus for producing ceramsite sand from urban silt according to claim 8, characterized in that, The upper and lower ends of the transmission grinding shaft (9) are rotatably connected to the fixed frame B (8) and the base (2) respectively, and the lower end of the crushing shaft (4) is also rotatably connected to the base (2). The power wheels A (3), B (7), C (14) and D (21) are pulleys or sprockets, and the transmission components A (6) and B (20) are belts or transmission chains respectively.

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