Grinding device for producing ceramsite sand by using urban sludge

Abstract

The invention is applicable to the technical field of grinding, and provides a grinding device for producing ceramsite sand by using urban sludge, the grinding device comprises a foundation seat, and a fixing frame A and a fixing frame B which are fixed on the foundation seat, and a fixing frame C is also fixed on the fixing frame B. The top of the bearing cylinder is rotatably provided with a supporting ring seat; the inner ring of the bearing cylinder is provided with a porous grinding plate; the bottom of the bearing cylinder is rotatably connected with a crushing shaft; the power transmission pipe is rotationally installed on the fixing frame B, a slidable corner column is arranged in the power transmission pipe and connected with the push-pull cylinder A and the adjusting arm, and a grinding rod is arranged on a rod. A transmission grinding shaft and a grinding column are arranged in the middle of the pre-grinding barrel, the inner wall of the pre-grinding barrel is slidably connected with the grinding barrel, and a push-pull cylinder B and a powder guide pipe are arranged at the bottom of the pre-grinding barrel. The driving assembly is in linkage with all the components, and primary grinding, accurate grinding and smashing of raw materials are achieved. Through multi-stage grinding and a flexible adjusting mechanism, the grinding quality and the machining efficiency of the raw materials are remarkably improved, and efficient and high-quality ceramsite sand production is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of grinding, and particularly relates to a grinding device for producing ceramsite sand by using urban sludge. Background Art

[0002] With the acceleration of the urbanization process and the widespread use of sewage treatment facilities, urban sewage treatment plants generate a large amount of sludge every year. These sludges contain rich organic matter and minerals, but at the same time are mixed with heavy metals, pathogens and harmful chemical substances. If not properly treated, they will cause serious pollution to the environment. Traditional treatment methods mainly include landfill, incineration and land use, but these methods have many disadvantages, such as occupying a large amount of land resources, generating secondary pollution and high treatment costs, etc. Therefore, how to efficiently and environmentally treat and utilize urban sludge has become an urgent problem to be solved.

[0003] In recent years, researchers have begun to explore converting urban sludge into valuable building materials, such as ceramsite sand, to achieve resource recovery and reuse. Ceramsite sand is widely used in the construction industry due to its light weight, high strength and good heat 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 a raw material to produce ceramsite sand can not only effectively solve the problem of sludge disposal, but also reduce the production cost of ceramsite sand, realizing the resource utilization of waste, and having significant economic and environmental benefits.

[0004] However, the existing devices cannot effectively and reasonably perform multi-stage grinding and flexible adjustment on raw materials, which affects the grinding quality and processing efficiency of raw materials. Therefore, in view of the above situation, there is an urgent need to develop a grinding device for producing ceramsite sand by using urban sludge to overcome the deficiencies in current practical applications. Summary of the Invention

[0005] The purpose of the present invention is to provide a grinding device for producing ceramsite sand by using urban sludge, aiming to solve the problems mentioned in the above background art.

[0006] The present invention is realized as follows: A grinding device for producing ceramsite sand by using urban sludge includes a base seat and a fixed frame A and a fixed frame B fixed thereon. A fixed frame C is also fixed on the fixed frame B, and further includes: A bearing cylinder, the bearing cylinder is installed and fixed on the fixed frame A. A support ring seat is rotatably installed at the top of the bearing cylinder, and a porous grinding plate is fixed inside the inner ring of the support ring seat; A crushing shaft is rotatably installed in the middle of the bottom of the bearing cylinder, and a crushing knife cooperating with the lower side of the porous grinding plate is fixed at the upper end of the crushing shaft; Power transmission pipe, the power transmission pipe is rotatably installed on the fixed frame B, an angle column is slidably arranged inside the power transmission pipe, the upper end of the angle column is rotatably connected to the telescopic end of the push-pull cylinder A, and the push-pull cylinder A is also fixedly connected to the fixed frame C. A regulating arm is fixed to the lower end of the angle column, and a grinding rod cooperating with the porous grinding plate is installed on the regulating arm; Pre-grinding cylinder, the pre-grinding cylinder is fixedly connected to the fixed frame B, a driving grinding shaft is installed through the middle of the pre-grinding cylinder, grinding columns are installed and fixed on the driving grinding shaft inside the pre-grinding cylinder, and a grinding cylinder cooperating with the grinding columns is slidably installed on the inner wall of the pre-grinding cylinder. A push-pull cylinder B is also fixed to the bottom of the grinding cylinder, and the push-pull cylinder B is also fixedly connected to the inner wall of the pre-grinding cylinder; A powder guide pipe for feeding materials to the porous grinding plate is also installed at the bottom of the pre-grinding cylinder; Drive assembly, the drive assembly is in transmission connection with the driving grinding shaft, the power transmission pipe, the crushing shaft and the support ring seat. The drive assembly is used to drive the driving grinding shaft to rotate, so that the grinding columns and the grinding cylinder cooperate to initially grind the raw materials. At the same time, the drive assembly is also used to drive the support ring seat to rotate in the opposite direction relative to the power transmission pipe and the crushing shaft, so that the grinding rod and the porous grinding plate cooperate to finely grind the raw materials, and the crushing knife breaks the raw materials falling from the porous grinding plate.

[0007] Further technical solution, the bearing cylinder adopts a cylindrical barrel structure, an annular protrusion is integrally formed on the inner side of the upper end of the bearing cylinder, an annular groove is opened at the top of the annular protrusion, and a bottom support ring that is rotatably connected with the annular groove is fixed to the bottom of the support ring seat.

[0008] Further technical solution, the porous grinding plate adopts a structure with a concave arc in the middle, a material guiding retaining ring is also fixed to the top of the support ring seat, and the material guiding retaining ring is smoothly connected with the porous grinding plate; The crushing knife adopts an arc structure that cooperates with the porous grinding plate, and a plurality of crushing knives are circumferentially and evenly distributed at the upper end of the crushing shaft.

[0009] Further technical solution, the bottom of the inner cavity of the bearing cylinder is inclined, and a powder outlet pipe is installed on the side wall of the bearing cylinder at the lower side of the bottom of the inner cavity of the bearing cylinder, and an end cover is detachably installed at the end of the powder outlet pipe.

[0010] Further technical solution, the crushing 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 regulating arm includes an outer cylinder, a fastening bolt and an inner rod. An outer cylinder is fixed to the lower end of the angle column, an inner rod is slidably arranged inside the outer cylinder, the upper end of the grinding rod is fixedly connected with the inner rod, and a fastening bolt for locking and fixing the inner rod is also installed on the outer cylinder.

[0011] Further technical solution: The grinding rod includes an inner cylinder, an outer cylinder, a spring and a limiting plate. The lower end of the outer cylinder is of a hemispherical structure. A cavity is provided inside the outer cylinder. A limiting plate is slidably arranged in the cavity. A spring for elastically supporting the limiting plate is arranged on the lower side of the limiting plate. An inner cylinder is fixed on the upper side of the limiting plate. The upper end of the inner cylinder is fixedly connected to the inner rod of the adjusting arm.

[0012] Further technical solution: The outer cylinder and the inner rod are perpendicular to the grinding rod; the cross section of the inner cylinder is in the shape of a regular polygon.

[0013] Further technical solution: The pre-grinding cylinder adopts a closed cylindrical barrel structure. A feed hopper is installed at the upper end of the pre-grinding cylinder; a material stirring plate for cooperating with the bottom of the inner cavity of the pre-grinding cylinder is also fixed on the driving 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 barrel section B with a cylindrical structure; the upper part of the grinding cylinder is a top conical section A, 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 the lower ends; the lower part of the grinding cylinder is a bottom straight barrel section A with a cylindrical barrel structure, the bottom straight barrel section A corresponds to the bottom straight barrel section B, and the inner diameter of the bottom straight barrel section A is greater than the outer diameter of the bottom straight barrel section B.

[0014] Further technical solution: The driving assembly includes a driving wheel A, a transmission member A, a driving wheel B, a gear, a toothed ring, a driving wheel C, a transmission member B, a driving wheel D and a motor. A gear and a driving wheel B are respectively fixed on the driving grinding shaft below the pre-grinding cylinder. A toothed ring meshed with the gear is fixed outside the support ring seat. A driving wheel A is fixed on the crushing shaft. The driving wheel A is connected to the driving wheel B through the transmission member A; a driving wheel C is fixed on the driving grinding shaft above the pre-grinding cylinder. The driving wheel C is connected to the driving wheel D through the transmission member B. The driving wheel D is fixed on the power transmission pipe; a motor for drivingly connecting with the upper end of the driving grinding shaft is also installed on the fixing frame B.

[0015] Further technical solution: The upper and lower ends of the driving grinding shaft are respectively rotationally connected to the fixing frame B and the base seat. The lower end of the crushing shaft is also rotationally connected to the base seat; the driving wheels A, B, C and D are belt wheels or sprocket wheels, and the corresponding transmission members A and B are belts or transmission chains.

[0016] The grinding device for producing ceramsite sand by using urban sludge provided by the present invention has the following beneficial effects: By setting specific components inside the pre-grinding cylinder, the raw materials can be preliminarily ground. Next, through the synergistic effect of the grinding rods and the porous grinding plate, fine grinding of the raw materials is achieved. Finally, by using the crushing knives in cooperation, the raw materials are further broken, thus significantly improving the quality of the overall grinding process.

[0017] In addition, the device is designed with a push-pull cylinder A, which can adjust the height position of the grinding rods by controlling the lifting of the corner columns and change the inclination angle of the grinding rods by adjusting the length of the adjusting arms, thereby optimizing the cooperation effect between the grinding rods and the porous grinding plate. At the same time, the push-pull cylinder B can drive the grinding cylinder to move up and down, not only improving the feeding efficiency but also enhancing the grinding effect between the grinding cylinder and the grinding columns.

[0018] This equipment adopts a single driving component, which can make the transmission grinding shaft, the power transmission pipe, the crushing shaft and the support ring seat rotate synchronously, while the support ring seat rotates in the opposite direction relative to the power transmission pipe and the crushing shaft. This design further improves the cooperative grinding effect between the grinding rods and the porous grinding plate and the crushing efficiency of the crushing knives on the raw materials, ensuring high-quality output during the entire processing process.

[0019] In summary, through multi-stage grinding and a flexible adjustment mechanism, the present invention significantly improves the grinding quality and processing efficiency of the raw materials, ensuring efficient and high-quality production of ceramsite sand. Brief Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of the grinding device for producing ceramsite sand using urban sludge provided by an embodiment of the present invention; Figure 2 It is a front view structure schematic diagram of the grinding device for producing ceramsite sand using urban sludge provided by an embodiment of the present invention; Figure 3 It is an axonometric view of the bearing cylinder and its upper components in the grinding device for producing ceramsite sand using urban sludge provided by an embodiment of the present invention; Figure 4 It is Figure 3 An enlarged structure schematic diagram of the grinding rod part in Figure 5 It is Figure 3 An enlarged structure schematic diagram of part A in Figure 6 It is an axonometric view of the pre-grinding cylinder part in the grinding device for producing ceramsite sand using urban sludge provided by an embodiment of the present invention; Figure 7 It is Figure 6 A cooperative structure schematic diagram of the grinding cylinder and the grinding column parts in

[0021] In the figure: 1 - flour outlet pipe, 2 - base seat, 3 - driving wheel A, 4 - crushing shaft, 5 - fixing frame A, 6 - transmission part A, 7 - driving wheel B, 8 - fixing frame B, 9 - transmission and grinding shaft, 10 - gear, 11 - supporting block, 12 - pre-grinding cylinder, 13 - feed hopper, 14 - driving wheel C, 15 - motor, 16 - fixing frame C, 17 - push-pull cylinder A, 18 - corner post, 19 - power transmission pipe, 20 - transmission part B, 21 - driving wheel D, 22 - adjusting arm, 23 - grinding rod, 24 - material guiding retaining ring, 25 - gear ring, 26 - powder guiding pipe, 27 - bearing cylinder, 28 - outer cylinder, 29 - fastening bolt, 30 - internal rod, 31 - supporting ring seat, 32 - porous grinding plate, 33 - end cover, 34 - crushing knife, 35 - inner cylinder body, 36 - outer cylinder body, 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 cylinder section A, 47 - grinding column, 48 - top conical section B, 49 - bottom straight cylinder section B, 50 - material dialing plate, 51 - push-pull cylinder B. Detailed implementation mode

[0022] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present 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 only used to explain the present invention and are not used to limit the present invention.

[0023] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0024] As Figures 1-7 shown, a grinding device for producing ceramsite sand from urban sludge provided by an embodiment of the present invention grinds large pieces of sludge into smaller particles as one of the raw materials for producing ceramsite sand (used in combination with other raw materials in a certain proportion, such as clay, shale, fly ash, etc., which can not only adjust the chemical composition and physical properties of the mixture, but also optimize the reaction conditions during the sintering process, thereby producing high-quality ceramsite sand), including a base seat 2 and fixing frames A 5 and B 8 fixed thereon, and a fixing frame C 16 is also fixed on the fixing frame B 8. It further includes: A bearing cylinder 27, which is installed and fixed on the fixing frame A 5. A supporting ring seat 31 is rotatably installed at the top of the bearing cylinder 27, and a porous grinding plate 32 is fixed inside the inner ring of the supporting ring seat 31; a crushing shaft 4 is rotatably installed in the middle at the bottom of the bearing cylinder 27, and a crushing knife 34 that cooperates with the lower side of the porous grinding plate 32 is fixed at the upper end of the crushing shaft 4; A power transmission tube 19, which is rotatably mounted on a fixed frame B8, a corner column 18 is slidably provided on the inner side of the power transmission tube 19, the upper end of the corner column 18 is rotatably connected to the telescopic end of the push-pull cylinder A17, and the push-pull cylinder A17 is also fixedly connected to the fixed frame C16, and an adjustment arm 22 is fixed to the lower end of the corner column 18, and a grinding rod 23 that cooperates with a porous grinding plate 32 is installed on the adjustment arm 22; A pre-grinding cylinder 12, wherein the 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 inner side of the pre-grinding cylinder 12 on the transmission grinding shaft 9, a grinding cylinder 43 matching 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, and the push-pull cylinder B51 is also fixedly connected to the inner wall of the pre-grinding cylinder 12, and the push-pull cylinder B51 and the push-pull cylinder A17 can be hydraulic cylinders or electric telescopic cylinders, without limitation; a powder guide tube 26 for feeding materials to the porous grinding plate 32 is also installed at the bottom of the pre-grinding cylinder 12; The driving assembly is connected to the transmission grinding shaft 9, the power transmission tube 19, the crushing shaft 4 and the support ring seat 31. The driving 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 materials. At the same time, the driving assembly is also used to drive the support ring seat 31 to rotate in the opposite direction relative to the power transmission tube 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 materials, and the crushing knife 34 breaks the raw materials falling from the porous grinding plate 32.

[0025] In the embodiment of the present invention, the raw material can be initially ground by setting a specific component in the pre-grinding cylinder 12. Next, the grinding rod 23 and the porous grinding plate 32 are used to achieve fine grinding of the raw material. Finally, the crushing knife 34 is used to further break up the raw material, thereby significantly improving the quality of the overall grinding process.

[0026] In addition, the device is designed with a push-pull cylinder A17, which can adjust the height position of the grinding rod 23 by controlling the lifting and lowering of the corner column 18, and change the inclination angle of the grinding rod 23 by adjusting the length of the adjustment arm 22, thereby optimizing the matching effect 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 material feeding efficiency, but also enhances the grinding effect between the grinding cylinder 43 and the grinding column 47.

[0027] This device adopts a single driving component, which can enable the transmission grinding shaft 9, the power transmission pipe 19, the crushing shaft 4 and the 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 the crushing shaft 4. This design further improves the cooperative grinding effect between the grinding rod 23 and the porous grinding plate 32 and the crushing efficiency of the crushing knife 34 on the raw materials, ensuring high-quality output during the entire processing process.

[0028] In summary, through multi-stage grinding and a flexible adjustment mechanism, the present invention significantly improves the grinding quality and processing efficiency of raw materials, ensuring efficient and high-quality production of ceramsite sand.

[0029] As Figures 1-5 shown, as a preferred embodiment of the present invention, the bearing cylinder 27 adopts a cylindrical barrel structure. A plurality of fixing frames A5 are arranged on the outer side of the bearing cylinder 27. The fixing frames A5 adopt an L-shaped structure. The end of the horizontal part 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 seat 2, thereby providing stable support for the bearing cylinder 27.

[0030] An annular protruding part 40 is integrally formed on the inner side of the upper end of the bearing cylinder 27. An annular groove 41 is opened at the top of the annular protruding part 40. A bottom support ring 42 that is rotationally connected in cooperation with the annular groove 41 is fixed at the bottom of the support ring seat 31, so that the support ring seat 31 can rotate stably.

[0031] The porous grinding plate 32 adopts a structure with a concave arc in the middle. A material guiding retaining ring 24 is also fixed at the top of the support ring seat 31. The material guiding retaining ring 24 is smoothly connected to the porous grinding plate 32, ensuring that the raw materials can flow 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.

[0032] The crushing knife 34 adopts an arc structure that cooperates with the porous grinding plate 32. A plurality of crushing knives 34 are circumferentially and evenly distributed at the upper end of the crushing shaft 4. In this way, the materials ground out from the porous grinding plate 32 can be broken by the crushing knives 34, improving the grinding and refinement effect.

[0033] The bottom of the inner cavity of the bearing cylinder 27 is inclined. An outlet powder pipe 1 is installed on the side wall of the bearing cylinder 27 at the lower side of the bottom of the inner cavity of the bearing cylinder 27. An end cover 33 is detachably installed at the end of the outlet powder pipe 1, facilitating the discharge of the processed materials.

[0034] The crushing shaft 4, the push-pull cylinder A17, the corner post 18, and the power transmission pipe 19 are coaxially arranged with the bearing cylinder 27 to ensure the reliability of transmission. The cross-section of the corner post 18 is a regular polygon, so that the power transmission pipe 19 can stably transmit power to the corner post 18. The corner post 18 is rotatably connected to the push-pull cylinder A17, and the lifting and rotation of the corner post 18 do not interfere with each other. In addition, the fixing frame C16 can be arranged in an L-shaped structure, and the fixing method refers to the fixing method of the fixing frame A5 and the bearing cylinder 27, which will not be elaborated here.

[0035] As Figure 2 shown, the adjusting arm 22 includes an outer cylinder 28, a fastening bolt 29, and an inner rod 30. The outer cylinder 28 is fixed to the lower end of the corner post 18. The inner rod 30 is slidably arranged in 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 provided with a fastening bolt 29 for locking and fixing the inner rod 30. Further, the outer cylinder 28 and the inner rod 30 are perpendicular to the grinding rod 23. By adjusting the telescopic length of the adjusting arm 22, the inclination angle of the grinding rod 23 can be changed, so as to perform adaptive adjustment on the grinding, which is stable and reliable.

[0036] As Figure 4 shown, the grinding rod 23 includes an inner cylinder 35, an outer cylinder 36, a spring 38, and a limiting plate 39. The lower end of the outer cylinder 36 is a hemispherical structure. A cavity 37 is formed inside the outer cylinder 36. The limiting plate 39 is slidably arranged in the cavity 37. A spring 38 for elastically supporting the limiting plate 39 is arranged below the limiting plate 39. The inner cylinder 35 is fixed to the upper side of the limiting plate 39. The cross-section of the inner cylinder 35 is a regular polygon. The upper end of the inner cylinder 35 is fixedly connected to the inner rod 30 of the adjusting arm 22. When the corner post 18 descends, the outer cylinder 36 ascends, and the spring 38 is compressed, so that the outer cylinder 36 can reliably abut against the porous grinding plate 32, improving the grinding effect. The inner cylinder 35 and the outer cylinder 36 are arranged so that they cannot rotate, ensuring the reliability of grinding.

[0037] As Figure 1 、 Figure 6 and Figure 7 shown, as a preferred embodiment of the present invention, the pre-grinding cylinder 12 adopts a closed cylindrical barrel 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 provided with a feed hopper 13, and the raw materials are added through the feed hopper 13.

[0038] The upper part of the grinding column 47 is the top conical section B48, and the lower part of the grinding column 47 is the bottom straight section B49 of the cylindrical structure; the upper part of the grinding cylinder 43 is the top conical section A44, and the middle part of the grinding cylinder 43 is the middle conical section 45 corresponding to the top conical section B48, and the distance between the upper ends of the middle conical section 45 and the top conical section B48 is greater than the distance between the lower ends, which is conducive to the falling and grinding of materials; the lower part of the grinding cylinder 43 is the bottom straight section A46 of the cylindrical barrel structure, the bottom straight section A46 corresponds to the bottom straight section B49, and the inner diameter of the bottom straight section A46 is greater than the outer diameter of the bottom straight section B49, and the specific spacing distance is arranged as needed to meet the grinding requirements. In addition, multiple push-pull cylinders B51 can be arranged circumferentially to meet the requirements of stably driving the grinding cylinder 43 to rise and fall. During operation, the top conical section A44 is arranged to facilitate the raw materials to enter between the middle conical section 45 and the top conical section B48 for grinding, and to facilitate the interaction between the middle conical section 45 and the top conical section B48, and between the bottom straight cylinder section A46 and the bottom straight cylinder section B49 to achieve grinding. At the same time, the push-pull cylinder B51 is used to drive the grinding cylinder 43 to rise and fall, thereby improving the overall efficiency and quality of grinding and avoiding material jamming.

[0039] In addition, a material-pickup plate 50 that cooperates with the bottom of the inner cavity of the pre-grinding cylinder 12 is fixed on the driving grinding shaft 9 , and the material-pickup plate 50 facilitates the material in the pre-grinding cylinder 12 to be discharged through the powder guide tube 26 .

[0040] like Figure 1 As shown, as a preferred embodiment of the present invention, the driving assembly includes a power wheel A3, a transmission member A6, a power wheel B7, a gear 10, a ring gear 25, a power wheel C14, a transmission member 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 on the transmission grinding shaft 9, and the ring gear 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 transmission-connected to the power wheel B7 through the transmission member A6; the power wheel C14 is fixed on the upper side of the pre-grinding cylinder 12 on the transmission grinding shaft 9, and the power wheel C14 is transmission-connected to the power wheel D21 through the transmission member B20, and the power wheel D21 is fixed on the power transmission pipe 19; the motor 15 transmission-connected to the upper end of the transmission grinding shaft 9 is also installed on the fixed frame B8.

[0041] In addition, the fixed frame B8 can be arranged in an L-shaped structure, and 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.

[0042] Preferably, the upper and lower ends of the transmission grinding shaft 9 are respectively rotatably connected to the fixed frame B8 and the base 2, and the lower end of the crushing shaft 4 is also rotatably connected to the base 2, ensuring the stability of the transmission grinding shaft 9 and the crushing shaft 4.

[0043] Preferably, the driving wheels A3, B7, C14 and D21 are pulleys or sprockets, etc., and the corresponding transmission parts A6 and B20 are belts or transmission chains, etc., which will not be elaborated and limited.

[0044] During application, through the meshing of the gear 10 and the gear ring 25, and the arrangement of the driving wheel A3, the transmission part A6, the driving wheel B7, the driving wheel C14, the transmission part B20 and the driving wheel D21, the power transmission pipe 19 and the crushing shaft 4 can 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, improving the quality of grinding and processing. In addition, using one motor 15 to achieve multiple drives is stable and reliable; the sizes of the gear 10, the gear ring 25, the driving wheel C14, the driving wheel D21, the driving wheel A3 and the driving wheel B7 can be adjusted as needed to change the relative speed and improve the grinding effect, which will not be elaborated.

[0045] In the above embodiments of the present invention, a grinding device for producing ceramsite sand from urban sludge is provided. Through multi-stage grinding and a flexible adjustment mechanism, efficient and high-quality raw material processing is achieved, and the working principle is as follows: The raw materials are added through the feed hopper 13 at the top of the pre-grinding cylinder 12.

[0046] The transmission grinding shaft 9 drives the grinding column 47 mounted thereon to rotate, and cooperates with the grinding cylinder 43 fixed on the inner wall of the pre-grinding cylinder 12 to preliminarily grind the raw materials.

[0047] The push-pull cylinder B51 drives the grinding cylinder 43 to move up and down to ensure the smooth passage of the materials and improve the grinding efficiency.

[0048] The materials after preliminary grinding enter the porous grinding plate 32 through the powder guide pipe 26.

[0049] The support ring seat 31 rotates to drive the porous grinding plate 32 to rotate. At the same time, the grinding rod 23 adjusts its position and angle through the adjusting arm 22 and closely cooperates with the porous grinding plate 32 to finely grind the materials.

[0050] The materials falling from the porous grinding plate 32 are broken by the crushing knife 34 fixed at the upper end of the crushing shaft 4 to further refine the particles.

[0051] The motor 15 realizes the synchronous rotation of the grinding shaft 9, the power transmission pipe 19, the crushing shaft 4, and the support ring seat 31 through a series of driving wheels (such as driving wheel A3, driving wheel B7, driving wheel C14, driving wheel D21) and transmission parts (such as transmission part A6, transmission part B20).

[0052] The support ring seat 31 rotates in the opposite direction relative to the power transmission pipe 19 and the crushing shaft 4, optimizing the matching effect between the grinding rod 23 and the porous grinding plate 32 and improving the overall grinding quality.

[0053] In addition, the push-pull cylinder A17 adjusts the height position of the grinding rod 23 through the corner post 18. By adjusting the length of the adjusting arm 22, the inclination angle of the grinding rod 23 is changed to ensure the best grinding effect.

[0054] 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.

[0055] The control of each component can adopt the PLC controller disclosed in the prior art. The models and circuit connections of each component are not specifically limited and can be flexibly set in actual applications.

[0056] The circuits, electronic components, and modules involved are all prior art and can be fully realized by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0057] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as the combinations of these technical features do not conflict, they should all be considered as within the scope described in this specification.

[0058] The above-described embodiments only represent several implementation manners of the present invention. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. Grinding device for producing ceramsite sand from urban sludge, including a base seat (2) and a fixed frame A (5) and a fixed frame B (8) fixed thereon, and a fixed frame C (16) is also fixed on the fixed frame B (8), characterized in that, Further comprising: A bearing cylinder (27), which is installed and fixed on the fixing frame A (5). A support ring seat (31) is rotatably installed at the top of the bearing cylinder (27), and a porous grinding plate (32) is fixed on the inner ring of the support ring seat (31); A crushing shaft (4) is rotatably installed at the bottom of the bearing cylinder (27), and a crushing knife (34) that cooperates with the lower side of the porous grinding plate (32) is fixed at the upper end of the crushing shaft (4); A power transmission pipe (19), which is rotatably installed on the fixing frame B (8). A corner post (18) is slidably arranged inside the power transmission pipe (19). The upper end of the corner post (18) is rotatably connected to the telescopic end of the push-pull cylinder A (17), and the push-pull cylinder A (17) is also fixedly connected to the fixing frame C (16); A regulating arm (22) is fixed at the lower end of the corner post (18), and a grinding rod (23) that cooperates with the porous grinding plate (32) is installed on the regulating arm (22); A pre-grinding cylinder (12), which is fixedly connected to the fixing frame B (8). A transmission grinding shaft (9) is installed through the middle of the pre-grinding cylinder (12). Grinding columns (47) are installed and fixed on the transmission grinding shaft (9) inside the pre-grinding cylinder (12). A grinding cylinder (43) that cooperates with the grinding columns (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), and 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 feeding materials to the porous grinding plate (32) is also installed at the bottom of the pre-grinding cylinder (12); A driving assembly, which is in transmission connection with the transmission grinding shaft (9), the power transmission pipe (19), the crushing shaft (4) and the support ring seat (31). The driving assembly is used to drive the transmission grinding shaft (9) to rotate, so that the grinding columns (47) and the grinding cylinder (43) cooperate to initially grind the raw materials. At the same time, the driving assembly is also used to drive the support ring seat (31) to rotate in the opposite direction relative 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 finely grind the raw materials, and the crushing knife (34) breaks the raw materials falling from the porous grinding plate (32).

2. The grinding device for producing ceramsite sand using urban sludge according to claim 1, characterized in that, The bearing cylinder (27) adopts a cylindrical barrel structure. An annular protruding portion (40) is integrally formed on the inner side of the upper end of the bearing cylinder (27), and an annular groove (41) is opened at the top of the annular protruding portion (40); A bottom support ring (42) that is rotatably connected with the annular groove (41) is fixed at the bottom of the support ring seat (31).

3. The grinding device for producing ceramsite sand using urban sludge according to claim 2, characterized in that, The porous grinding plate (32) adopts a structure with a concave arc in the middle. A material guiding retaining ring (24) is also fixed at the top of the support ring seat (31), and the material guiding retaining ring (24) is smoothly connected with the porous grinding plate (32); The crushing knife (34) adopts an arc structure that cooperates with the porous grinding plate (32), and a plurality of crushing knives (34) are circumferentially and evenly distributed at the upper end of the crushing shaft (4).

4. The grinding device for producing ceramsite sand by using urban sludge 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) where the bottom of the inner cavity of the bearing cylinder (27) is lower. An end cover (33) is detachably installed at the end of the powder outlet pipe (1).

5. The grinding device for producing ceramsite sand using urban sludge according to claim 3, characterized in that, The crushing shaft (4), the push-pull cylinder A (17), the corner post (18) and the power transmission pipe (19) are coaxially arranged with the bearing cylinder (27). The cross-section of the corner post (18) is a regular polygon shape. The adjusting arm (22) includes an outer cylinder (28), a fastening bolt (29) and an inner rod (30). The lower end of the corner post (18) is fixed with an outer cylinder (28). An inner rod (30) is slidably arranged in the outer cylinder (28). The upper end of the grinding rod (23) is fixedly connected with the inner rod (30). A fastening bolt (29) for locking and fixing the inner rod (30) is also installed on the outer cylinder (28).

6. The grinding device for producing ceramsite sand using urban sludge according to claim 5, characterized in that, The grinding rod (23) includes an inner cylinder body (35), an outer cylinder body (36), a spring (38) and a limiting plate (39). The lower end of the outer cylinder body (36) is a hemispherical structure. A cavity (37) is formed inside the outer cylinder body (36). A limiting plate (39) is slidably arranged in the cavity (37). A spring (38) for elastically supporting the limiting plate (39) is arranged on the lower side of the limiting plate (39). An inner cylinder body (35) is fixed on the upper side of the limiting plate (39). The upper end of the inner cylinder body (35) is fixedly connected with the inner rod (30) of the adjusting arm (22).

7. The grinding device for producing ceramsite sand using urban sludge according to claim 6, characterized in that, The outer cylinder (28) and the inner rod (30) are perpendicular to the grinding rod (23). The cross-section of the inner cylinder body (35) is a regular polygon shape.

8. The grinding device for producing ceramsite sand by using urban sludge according to any one of claims 1-7, characterized in that, The pre-grinding cylinder (12) adopts a closed cylindrical barrel structure. A feed hopper (13) is installed at the upper end of the pre-grinding cylinder (12). A material distributing plate (50) that cooperates with the bottom of the inner cavity of the pre-grinding cylinder (12) is also fixed on the transmission grinding shaft (9). 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 barrel section B (49) with a cylindrical structure. The upper part of the grinding cylinder (43) is a top conical section A (44). The middle part of the grinding cylinder (43) is a middle conical section (45) corresponding to the top conical section B (48). And 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 the lower ends. The lower part of the grinding cylinder (43) is a bottom straight barrel section A (46) with a cylindrical barrel structure. The bottom straight barrel section A (46) corresponds to the bottom straight barrel section B (49). And the inner diameter of the bottom straight barrel section A (46) is greater than the outer diameter of the bottom straight barrel section B (49).

9. The grinding device for producing ceramsite sand by using urban sludge according to any one of claims 1-7, characterized in that, The drive assembly includes a power wheel A (3), a transmission member A (6), a power wheel B (7), a gear (10), a gear ring (25), a power wheel C (14), a transmission member B (20), a power wheel D (21) and a motor (15). A gear (10) and a power wheel B (7) are respectively fixed on the transmission grinding shaft (9) on the lower side of the pre-grinding cylinder (12). A gear ring (25) that meshes with the gear (10) is fixed on the outside of the support ring seat (31). A driving wheel A (3) is fixed on the crushing shaft (4), and the driving wheel A (3) is drivingly connected to a driving wheel B (7) through a transmission member A (6); On the upper side of the pre-grinding cylinder (12), a driving wheel C (14) is fixed on the transmission and grinding shaft (9). The driving wheel C (14) is drivingly connected to a driving wheel D (21) through a transmission member B (20), and the driving wheel D (21) is fixed on a power transmission pipe (19); A motor (15) drivingly connected to the upper end of the transmission and grinding shaft (9) is further installed on the fixing frame B (8).

10. The grinding device for producing ceramsite sand using urban sludge according to claim 9, characterized in that, The upper and lower ends of the transmission and grinding shaft (9) are respectively rotatably connected to the fixing frame B (8) and the base (2), and the lower end of the crushing shaft (4) is also rotatably connected to the base (2); The driving wheels A (3), B (7), C (14) and D (21) are belt wheels or sprocket wheels, and the corresponding transmission members A (6) and B (20) are respectively a belt or a transmission chain.

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