Sludge ceramsite production device

Abstract

The sludge ceramsite production device comprises a granulation device, a first supporting frame is fixedly connected to the lower end of the granulation device, a pelletizing device is arranged in the first supporting frame, a vibration screening device is arranged on one side of the pelletizing device, and a drying device is fixedly connected to one side of the vibration screening device and the bottom of the pelletizing device; the granulating device comprises a fixed discharging box, a discharging hopper is arranged on the fixed discharging box, two first rotating motors are arranged on one side of the fixed discharging box, extrusion devices are arranged at the output ends of the two first rotating motors, and a bearing fixing plate is arranged at the other side end of the fixed discharging box. The extrusion device is assembled with a bearing fixing plate through a first rotating motor to complete the effect of rotating extrusion, and a cleaning device is fixedly connected to one side end of the extrusion device and the fixed discharging box. And the energy consumption loss and the particle crushing risk caused by multiple times of material transfer are eliminated.

Description

Technical Field

[0001] The present invention belongs to the technical field of ceramsite production, and particularly relates to a sludge ceramsite production device. Background Art

[0002] As a material with excellent properties such as light weight, high strength, and high temperature resistance, ceramsite has been widely used in the fields of construction, horticulture, environmental protection, etc. In the process of sludge treatment, converting sludge into ceramsite can not only effectively reduce the volume of sludge, but also reduce environmental pollution and increase the added value of sludge. Therefore, developing a highly efficient, energy-saving, and highly automated sludge ceramsite production device is the key to solving the technical bottlenecks of sludge treatment and ceramsite production. Currently, the sludge ceramsite production devices on the market usually use multiple devices for multi-stage processing, such as mixing, granulation, drying, etc. However, traditional production devices have certain disadvantages, such as cumbersome operation, high energy consumption, large floor area of equipment, low production efficiency, etc. In addition, some equipment is prone to problems such as material adhesion and particle breakage during the processing, resulting in unstable product quality and inability to meet the high-standard requirements of ceramsite production. Therefore, how to optimize the sludge ceramsite production process, improve the automation level of the production line, reduce energy consumption, increase production, and ensure product quality has become an urgent problem to be solved in the field of sludge ceramsite production. Summary of the Invention

[0003] The purpose of the present invention is to reduce multiple links in the production process, improve production efficiency, and solve the defects in traditional equipment through optimized design, which has become an urgent need for the current industry development. The present invention proposes a highly efficient, energy-saving, and highly automated sludge ceramsite production device, which can realize the integrated design of processes such as sludge granulation, pelletizing, screening, and drying, reduce material transfer and energy consumption, and improve the overall production efficiency and product consistency.

[0004] The present invention achieves the above object through the following technical solutions: A sludge ceramsite production device includes a granulation device. The lower end of the granulation device is fixedly connected to a first support frame. Inside the first support frame, there is a ball-making device. One side of the ball-making device is provided with a vibrating screening device. One side of the vibrating screening device and fixedly connected to the bottom of the ball-making device is a drying device. The granulation device includes a fixed feeding box. A feeding funnel is arranged on the fixed feeding box. Two first rotating motors are arranged on one side of the fixed feeding box. The output ends of both first rotating motors are provided with extrusion devices. On the other side end of the fixed feeding box, there is a bearing fixing plate. The extrusion device is assembled with the bearing fixing plate through the first rotating motor to complete the function of rotational extrusion. One side end of the extrusion device is fixedly connected to the fixed feeding box with a cleaning device. The integrated design of granulation, ball-making, screening, and drying reduces the transfer of materials between processes, and reduces energy consumption and time costs. The two extrusion devices are adjusted and aligned to preliminarily extrude the materials into spherical shapes. The vibrating screening device ensures the uniformity of particle size. The dual shaping of extrusion and ball-making improves the strength and appearance consistency of the finished product.

[0005] Further, the cleaning device includes a fixing plate. A number of second rotating motors are arranged at equal intervals on one side end of the fixing plate. The second rotating motors penetrate through the fixing plate and their output ends are all provided with elastic rods. A hemispherical spoon is arranged at the front end of the elastic rod. A miscellaneous material collection box is arranged at the lower end of the hemispherical spoon. An air inlet pipe is connected through the upper end inside of the fixing plate. A number of air jet nozzles are evenly arranged at equal intervals on one side of the air inlet pipe. The air jet nozzles are fixedly connected to one side of the fixing plate and arranged above the hemispherical spoon for the air jet cleaning function after the waste materials are dug out. The second rotating motor drives the elastic rod to rotate, driving the hemispherical spoon to fit the surface of the extrusion device. The adhered sludge particles are scraped off through flexible contact. The elastic deformation is used to adapt to the unevenness of the surface of the extrusion roller, avoiding rigid collision and damaging the equipment. At the same time, the scraping coverage rate is ensured. The scraped waste materials are guided by the arc surface of the hemispherical spoon and fall into the collection box, realizing the automatic centralized recovery of waste materials and preventing secondary pollution. High-pressure gas is transported through the air inlet pipe to the air jet nozzles to form a directional air flow, and the surface of the extrusion device after scraping is cleaned secondarily. Located above the hemispherical spoon, the air flow impact is used to remove the fine residues that are difficult to reach by the scraping spoon, forming a coordinated cleaning process of "scraping first and then blowing". The air flow of the air jet nozzles uses the waste heat of the drying device. The temperature of the waste heat can heat the waste materials to accelerate their solidification, making it more convenient for cleaning. At the same time, additional energy consumption can be reduced. The cleaning action is automatically controlled by the motor without manual intervention.

[0006] Further, a feeding slope is arranged at the inner bottom of the fixed feeding box. One end of the feeding slope is provided with a feeding leakage box for the collection and guiding of materials after the extrusion is completed.

[0007] Furthermore, the extrusion device includes an extrusion roller. A number of hemispherical extrusion grooves are arranged equidistantly in a circle on the extrusion roller. An active column barrel is arranged inside the extrusion roller. The active column barrel is flexible and movable, and a number of active pushing rods are arranged evenly and equidistantly in a circle on the outside. The active pushing rods penetrate through each of the hemispherical extrusion grooves and the surfaces are flush with the hemispherical extrusion grooves, presenting an arc-shaped surface. The whole presents a trumpet shape. One side end inside the extrusion roller is provided with an eccentric disc for fixing and actively rotating the active column barrel. The hemispherical grooves arranged equidistantly on the surface of the extrusion roller form uniformly distributed forming cavities, ensuring uniform stress on the sludge during extrusion and avoiding particle breakage or uneven density caused by local stress concentration. Two extrusion devices are aligned, and the two hemispherical grooves are aligned to form a complete sphere. After extruding the material, a spherical material can be formed. The arc surface design of the hemispherical groove can guide the natural filling of the sludge, reduce the extrusion resistance, and improve the particle forming efficiency. The active pushing rods penetrate through each hemispherical extrusion groove, and the surfaces are flush with the grooves to form a continuous arc, and the whole expands outward in a trumpet shape. When the extrusion roller rotates, the active column barrel is driven by the eccentric disc to drive the active pushing rods to reciprocate or rotate in the extrusion grooves. The periodic movement of the pushing rods pushes the sludge particles adhering in the extrusion grooves outward, preventing blockage and promoting the smooth detachment of the formed particles. The advantage of the trumpet shape is that the gradually expanding outlet design reduces the material discharge resistance, reduces energy consumption, and at the same time ensures the particle integrity and shape consistency. By adjusting the rotation angle and frequency of the eccentric disc, the movement mode of the active column barrel (such as the vibration amplitude or rotation speed) is controlled, so as to dynamically adjust the action intensity and frequency of the pushing rods to cope with the change of material viscosity. For highly viscous sludge, the action amplitude of the pushing rods is increased to enhance the demoulding effect; for low-viscosity materials, the frequency is reduced to reduce energy consumption. The flexible movement of the pushing rods avoids rigid friction with the extrusion grooves and prolongs the service life of key components.

[0008] Furthermore, the pelletizing device includes a triangular slope support frame. A spherical rotating bin is arranged at the upper end of the triangular slope support frame. One side end of the spherical rotating bin is fixedly connected with a connecting bearing rod. One end of the connecting bearing rod is fixedly connected with a third rotating motor. A receiving bin is arranged at one side end of the spherical rotating bin. An outlet is arranged at the bottom of one end of the receiving bin. The outlet is arranged at the upper end of the vibrating screening device. The rotational dynamics design of the spherical bin combined with the guiding effect of the slope support frame ensures uniform stress on the particles, significantly improves the roundness of the ceramsite, and meets the morphological requirements of high-strength and lightweight ceramsite. The outlet is directly connected to the vibrating screening device, eliminating the need for manual transfer, reducing the risk of particle breakage, and at the same time improving the automation level of the production line. The third rotating motor can adjust the rotation speed according to the material characteristics (such as reducing the speed of high-humidity sludge to prevent adhesion), reducing energy consumption. The closed structure of the spherical bin reduces dust emission, meeting the environmental protection production standards.

[0009] Furthermore, the vibrating screen feeding device includes a third support frame. A vibrating device is provided at the upper end of the third support frame. A conveying pipe is provided at one side end of the vibrating device. A waste collection box is provided at the bottom of one side of the vibrating device. A guiding hole is provided at one upper end of the conveying pipe and is assembled and connected to the tail of the vibrating device. The vibrating device is double-layered up and down. The upper layer is used for conveying the screened materials through the conveying pipe after vibration, and the waste materials discharged from the lower layer are collected by the waste collection box. The vibrating device is located at the upper end of the third support frame and helps the materials to be screened through vibration. The vibration can separate the materials according to their characteristics such as size and weight, improving the screening efficiency. The vibrating device is designed with a double-layer structure up and down, having a dual screening function. The materials screened by the upper layer will be sent downstream through the conveying pipe for processing, while the waste materials that fail to pass the screening in the lower layer will be discharged. The conveying pipe is used to transport the materials screened by the upper layer of the vibrating device. Its upper end is connected to the tail of the vibrating device, and a guiding hole is provided to ensure that the materials can be smoothly transported into the drying device for drying.

[0010] Furthermore, the vibrating device includes a fixed connection frame. A bearing plate connection frame is provided at the upper end of the fixed connection frame. A vibrating motor is fixedly connected to the lower end of the bearing plate connection frame. Vibration screen springs are provided at the four corners of the fixed connection frame. The upper ends of the vibration screen springs are fixedly connected to a bearing plate. A perforated screen plate is provided on the upper end of the bearing plate. The fixed connection frame is fixedly connected to the third support frame. The setting of the vibration screen springs can effectively buffer the impact force caused by vibration, reduce the influence of equipment vibration on the overall structure, and ensure the smoothness and uniformity of vibration at the same time. The perforations on the perforated screen plate are designed to achieve an efficient screening function and are suitable for operations such as screening, separating, or drying of materials.

[0011] Furthermore, the drying device includes a second support frame. A blower is provided at a corner inside the second support frame. A heating pipe box is provided at the output end of the blower. An air conveying pipe is provided at one side of the heating pipe box. A bearing platform is provided at the upper end of the heating pipe box. A drying rotating drum device is provided on the upper end of the bearing platform. The blower provides strong air flow power, quickly blowing the hot air generated by the heating pipe box into the drying rotating drum device to form an efficient hot air circulation, evenly conveying the hot air into the drying rotating drum device to ensure that the materials can be evenly heated and improve the drying efficiency.

[0012] Further, the drying rotary drum device includes a drying drum, a pulley rotating motor is arranged at the upper end of the drying drum, a rotating belt is connected to the pulley rotating motor, a belt rotating wheel is connected to the rotating belt, the belt rotating wheel is fixedly connected to the drying drum, a material receiving funnel is arranged at the lower end of the drying drum. By driving the rotating belt with the motor, the belt rotating wheel is driven to rotate, so as to realize the uniform turning of the drying drum. The rotation of the drying drum makes the materials turn evenly in the drum, and can fully contact with the hot air, avoiding material accumulation or dead corners, thus realizing efficient and uniform drying. The pulley rotating motor drives the drying drum to rotate through the rotating belt. This transmission method has the characteristics of simple structure and stable operation, and can effectively avoid the wear problems that may occur in traditional gear transmission.

[0013] Further, a perforated inner drum is arranged inside the drying drum. A rotating bearing is arranged on one side of the perforated inner drum. One end of the rotating bearing is movably connected to the belt rotating wheel and the other end is movably connected to the perforated inner drum. A manual switch cover plate is arranged at one corner of the perforated inner drum. The drying drum is arranged at an inclined angle, and a material leakage hole is arranged at one corner of the bottom and is connected to the material receiving funnel. The movable connection method enables the perforated inner drum to rotate freely, ensuring that the materials can fully contact with the hot air evenly during the rotation process. Through the perforation design, the materials can be screened during the drying process to remove excess moisture, dust and impurities.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. Through the physical coupling and process connection of the four major functional modules of granulation, pelletizing, screening and drying, the continuous operation of sludge ceramsite production is realized. The initially formed particles output by the granulation device directly enter the pelletizing device for secondary shaping, and the qualified particles screened by the vibrating screen device are seamlessly connected to the drying device, eliminating the energy consumption loss and the risk of particle breakage caused by multiple material transfers in the traditional process, and significantly shortening the production cycle;

[0016] 2. The cleaning device adopts the cooperative work of the "mechanical scraping + air blowing purification" dual mode: the hemispherical digging spoon adaptively extrudes the surface curvature of the extrusion roller through elastic deformation to realize the flexible stripping of the adhered sludge; the air jet head uses the waste heat of the drying device (temperature 80 - 120 °C) to form a directional hot air flow, which not only completes the removal of fine residues, but also promotes the pre-curing of the waste materials. This design reduces the cleaning energy consumption and avoids secondary pollution at the same time;

[0017] 3. The extrusion device innovatively adopts the structure of a movable pushing rod driven by an eccentric disc. By adjusting the eccentric angle, the movement trajectory of the pushing rod in the hemispherical extrusion groove is changed in real time. For sludge with different water contents, the pushing intensity can be dynamically adjusted. While ensuring the forming efficiency, the problem of blockage of highly viscous materials is effectively solved, and the service life of the equipment is extended by more than 3 times;

[0018] 4. In the granulation stage, primary granules (with a diameter of 15 - 25 mm) are formed by double-roll counter-pressure. The pelletizing device adopts a spherical rotating bin with an adjustable inclination angle, and secondary rounding is carried out by the combined action of centrifugal force and gravity. With the double-layer vibrating screen of the vibrating screen feeding device, the roundness of the final product reaches the standard requirement (sphericity ≥ 0.85);

[0019] 5. The drying device is designed with a hot air circulation system, and the drying barrel is evenly flipped through belt drive, enabling the material to be in full contact with the hot air, improving the drying efficiency. The design of the inner barrel with leakage holes allows screening during the drying process to remove excess moisture and impurities, further improving the product quality. Such a design not only dries efficiently but also optimizes the material treatment effect; BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the present invention;

[0021] Figure 2 is a schematic diagram of the granulation device of the present invention;

[0022] Figure 3 is a schematic diagram of the cleaning device of the present invention;

[0023] Figure 4 is a schematic diagram of the extrusion device of the present invention;

[0024] Figure 5 is a schematic diagram of the pelletizing device of the present invention;

[0025] Figure 6 is a schematic diagram of the vibrating screen feeding device of the present invention;

[0026] Figure 7 is a schematic diagram of the vibrating device of the present invention;

[0027] Figure 8 is a schematic diagram of the drying device of the present invention;

[0028] Figure 9 is a schematic diagram of the drying rotating barrel device of the present invention;

[0029] Figure 10 is a schematic cross-sectional view of the drying rotating barrel device of the present invention.

[0030] In the figure: 1 - Granulating device, 2 - First support frame, 3 - Pelletizing device, 4 - Vibrating screening device, 5 - Drying device, 11 - Fixed feeding box, 12 - Feeding funnel, 13 - First rotating motor, 14 - Extrusion device, 15 - Bearing fixing plate, 16 - Cleaning device, 161 - Fixing plate, 162 - Second rotating motor, 163 - Elastic rod, 164 - Hemispherical spoon, 165 - Miscellaneous material collection box, 166 - Air inlet pipe, 167 - Jet head, 111 - Feeding slope, 112 - Feeding leak box, 141 - Extrusion roller, 142 - Hemispherical extrusion groove, 143 - Movable column barrel, 144 - Movable pushing rod, 145 - Eccentric disc, 31 - Triangular slope support frame, 32 - Spherical rotating bin, 33 - Connecting bearing rod, 34 - Third rotating motor, 35 - Material receiving bin, 36 - Discharge port, 41 - Third support frame, 42 - Vibrating device, 43 - Conveying pipe, 44 - Waste material collection box, 421 - Fixed connection frame, 422 - Bearing plate connection frame, 423 - Vibrating motor, 424 - Vibrating screen spring, 425 - Bearing plate, 426 - Perforated screening plate, 51 - Second support frame, 52 - Blower, 53 - Heating pipe box, 54 - Air conveying pipe, 55 - Bearing platform, 56 - Drying rotating barrel device, 561 - Drying barrel, 562 - Pulley rotating motor, 563 - Rotating belt, 564 - Belt rotating pulley, 565 - Feeding funnel, 566 - Perforated inner barrel, 567 - Rotating bearing, 568 - Manual switch cover plate, 569 - Material leakage hole. Detailed implementation mode

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present invention.

[0033] Combined with Figure 1 - Figure 2As shown in the figure, a sludge ceramsite production device includes a granulation device 1. A first support frame 2 is fixedly connected to the lower end of the granulation device 1. A ball-making device 3 is arranged inside the first support frame 2. A vibrating screening device 4 is arranged on one side of the ball-making device 3. A drying device 5 is fixedly connected to the bottom of the vibrating screening device 4 and the ball-making device 3 on one side; The granulation device 1 includes a fixed feeding box 11. A feeding funnel 12 is arranged on the fixed feeding box 11. Two first rotating motors 13 are arranged on one side of the fixed feeding box 11. Extrusion devices 14 are arranged at the output ends of the two first rotating motors 13. A bearing fixing plate 15 is arranged at the other end of the fixed feeding box 11. The extrusion device 14 is assembled with the bearing fixing plate 15 through the first rotating motor 13 to complete the function of rotating extrusion. A cleaning device 16 is fixedly connected to the fixed feeding box 11 at one side end of the extrusion device 14. The design integrates granulation, ball-making, screening, and drying, reduces the transfer of materials between processes, and reduces energy consumption and time costs. The two extrusion devices are adjusted and aligned to initially extrude the materials into spherical shapes. The vibrating screening device ensures the uniformity of particle sizes. The dual shaping of extrusion and ball-making improves the strength and appearance consistency of the finished products;

[0034] Combined Figure 3 Figure 10As shown in the figure, the cleaning device 16 includes a fixing plate 161. On one side end of the fixing plate 161, a number of second rotating motors 162 are arranged at equal intervals. The second rotating motors 162 penetrate through the fixing plate 161 and elastic rods 163 are provided at the output ends. At the front end of the elastic rod 163, a hemispherical spoon 164 is provided. At the lower end of the hemispherical spoon 164, a miscellaneous material collection box 165 is provided. Inside the upper end of the fixing plate 161, an air inlet pipe 166 is connected through. On one side of the air inlet pipe 166, a number of jet nozzles 167 are arranged evenly at equal intervals. The jet nozzles 167 are fixedly connected to one side of the fixing plate 161 and are arranged above the hemispherical spoon 164 for the jet cleaning effect after the waste materials are dug out. The second rotating motor drives the elastic rod to rotate, driving the hemispherical spoon to fit and press against the surface of the device, scraping the adhered sludge particles through flexible contact, adapting to the unevenness of the surface of the extrusion roller through elastic deformation, avoiding rigid collision and damaging the equipment, and at the same time ensuring the scraping coverage rate. The scraped waste materials are guided by the arc surface of the hemispherical spoon and fall into the collection box, realizing automatic centralized recovery of waste materials and preventing secondary pollution. The high-pressure gas is transported through the air inlet pipe to the jet nozzles, forming a directional air flow to perform secondary cleaning on the surface of the extrusion device after scraping. Located above the hemispherical spoon, the fine residues that are difficult to reach by the scraping spoon are removed by the impact of the air flow, forming a cooperative cleaning process of "scraping first and then blowing". The air flow of the jet nozzles uses the waste heat of the drying device, and the temperature of the waste heat can heat the waste materials to accelerate their solidification, making it more convenient to clean, and at the same time reducing additional energy consumption. The cleaning action is automatically controlled by the motor without manual intervention; at the inner bottom of the fixed blanking box 11, a blanking slope 111 is provided. At one end of the blanking slope 111, a blanking leak box 112 is provided for the collection and guiding of materials after the extrusion is completed;The extrusion device 14 includes an extrusion roller 141. A number of hemispherical extrusion grooves 142 are arranged equidistantly in a circle on the extrusion roller 141. An active column barrel 143 is arranged inside the extrusion roller 141. The active column barrel 143 is flexible and movable. A number of active pushing rods 144 are arranged evenly and equidistantly in a circle on the outer side. The active pushing rods 144 penetrate through each hemispherical extrusion groove 142 and the surface is flush with the hemispherical extrusion groove 142, presenting an arc-shaped surface. The whole presents a trumpet shape. One side end inside the extrusion roller 141 is provided with an eccentric disc 145 for fixing and actively rotating the active column barrel 143. The hemispherical grooves arranged equidistantly on the surface of the extrusion roller form uniformly distributed forming cavities, ensuring uniform force on the sludge during extrusion, avoiding particle breakage or uneven density caused by local stress concentration. The two extrusion devices are aligned, and the two hemispherical grooves are aligned to form a complete sphere. After extruding the material, a spherical material can be formed. The arc surface design of the hemispherical groove can guide the natural filling of the sludge, reduce the extrusion resistance, and improve the particle forming efficiency. The active pushing rods penetrate through each hemispherical extrusion groove, and the surface is flush with the groove to form a continuous arc, and the whole expands outward in a trumpet shape. When the extrusion roller rotates, the active column barrel is driven by the eccentric disc, driving the active pushing rods to make reciprocating or rotating movements in the extrusion grooves. The periodic movement of the pushing rods pushes the sludge particles adhering in the extrusion grooves outwards, preventing blockage and promoting the smooth detachment of the formed particles. The advantage of the trumpet shape is that the gradually expanding outlet design reduces the material discharge resistance, reduces energy consumption, and at the same time ensures the particle integrity and shape consistency. By adjusting the rotation angle and frequency of the eccentric disc, the movement mode of the active column barrel is controlled (such as the vibration amplitude or rotation speed, so as to dynamically adjust the action intensity and frequency of the pushing rods to cope with the change of material viscosity. For high-viscosity sludge, the action amplitude of the pushing rods is increased to enhance the demolding effect; for low-viscosity materials, the frequency is reduced to reduce energy consumption. The flexible movement of the pushing rods avoids rigid friction with the extrusion grooves and prolongs the service life of key components; The pelletizing device 3 includes a triangular slope support frame 31. A spherical rotating bin 32 is arranged at the upper end of the triangular slope support frame 31. One side end of the spherical rotating bin 32 is fixedly connected with a connecting bearing rod 33. One end of the connecting bearing rod 33 is fixedly connected with a third rotating motor 34. A receiving bin 35 is arranged at one side end of the spherical rotating bin 32. An outlet 36 is arranged at the bottom of one end of the receiving bin 35. The outlet 36 is arranged at the upper end of the vibrating screening device 4. The rotational dynamics design of the spherical bin combined with the guiding effect of the slope support frame ensures uniform force on the particles, significantly improves the roundness of the ceramsite, and meets the morphological requirements of high-strength and lightweight ceramsite. The outlet is directly connected to the vibrating screening device, eliminating the need for manual transfer, reducing the risk of particle breakage, and at the same time improving the automation level of the production line. The third rotating motor can adjust the rotation speed according to the material characteristics (such as reducing the speed for high-humidity sludge to prevent adhesion and reduce energy consumption. The closed structure of the spherical bin reduces dust emission, meeting the environmental protection production standards;The vibrating screen feeding device 4 includes a third support frame 41. At the upper end of the third support frame 41, there is a vibrating device 42. On one side end of the vibrating device 42, there is a conveying pipe 43. At the bottom on one side of the vibrating device 42, there is a waste collection box 44. One end of the conveying pipe 43 is provided with a material guiding hole for assembly connection with the tail of the vibrating device 42. The vibrating device 42 is double-layered up and down. The upper layer is for conveying the screened materials through the conveying pipe after vibration. The waste discharged from the lower layer is collected by the waste collection box 44. The vibrating device is located at the upper end of the third support frame and helps screen the materials through vibration. The vibration effect can separate the materials according to their characteristics such as size and weight, improving the screening efficiency. The vibrating device is designed with a double-layer structure up and down, having a double screening function. The materials screened by the upper layer will be sent downstream through the conveying pipe, while the unqualified waste screened by the lower layer will be discharged. The conveying pipe is used to transport the materials screened by the upper layer of the vibrating device. Its upper end is connected to the tail of the vibrating device and is provided with a material guiding hole to ensure that the materials can be smoothly conveyed into the drying device for drying. The vibrating device 42 includes a fixed connection frame 421. At the upper end of the fixed connection frame 421, there is a bearing plate connection frame 422. At the lower end of the bearing plate connection frame 422, there is a vibrating motor 423 fixedly connected. At the four corners of the fixed connection frame 421, there are vibrating screen springs 424. The upper ends of the vibrating screen springs 424 are fixedly connected to a bearing plate 425. On the upper end of the bearing plate 425, there is a perforated sieve plate 426. The fixed connection frame 421 is fixedly connected to the third support frame 41. The setting of the vibrating screen springs can effectively buffer the impact force brought by vibration, reduce the influence of equipment vibration on the overall structure, and at the same time ensure the smoothness and uniformity of vibration. The perforated design of the perforated sieve plate can achieve an efficient screening function and is suitable for operations such as screening, separating, or drying of materials. The drying device 5 includes a second support frame 51. In one corner inside the second support frame 51, there is a blower 52. At the output end of the blower 52, there is a heating tube box 53. On one side of the heating tube box 53, there is an air conveying pipe 54. At the upper end of the heating tube box 53, there is a bearing platform 55. On the upper end of the bearing platform 55, there is a drying rotating drum device 56. The blower provides strong air flow power, quickly blowing the hot air generated by the heating tube box into the drying rotating drum device to form an efficient hot air circulation, evenly conveying the hot air into the drying rotating drum device to ensure that the materials can be evenly heated and improve the drying efficiency.The drying rotating barrel device 56 includes a drying barrel 561. At the upper end of the drying barrel 561, there is a pulley rotating motor 562. A rotating belt 563 is connected to the pulley rotating motor 562. A belt rotating wheel 564 is connected to the rotating belt 563. The belt rotating wheel 564 is fixedly connected to the drying barrel 561. At the lower end of the drying barrel 561, there is a material receiving funnel 565. By driving the rotating belt with a motor, the belt rotating wheel is driven to rotate, so as to realize the uniform flipping of the drying barrel. The rotation of the drying barrel makes the materials evenly tumble in the barrel, enabling them to fully contact with the hot air, avoiding material accumulation or dead corners, and thus realizing efficient and uniform drying. The pulley rotating motor drives the drying barrel to rotate through the rotating belt. This transmission method has the characteristics of simple structure and stable operation, and can effectively avoid the wear problems that may occur in traditional gear transmissions. Inside the drying barrel 561, there is a leaky hole inner barrel 566. On one side of the leaky hole inner barrel 566, there is a rotating bearing 567. One end of the rotating bearing 567 is movably connected to the belt rotating wheel 564 and the other end is movably connected to the leaky hole inner barrel 566. At one corner of the leaky hole inner barrel 566, there is a manual switch cover plate 568. The drying barrel 561 is set at an inclined angle, and there is a leaky material hole 569 at one corner of the bottom and it is connected to the material receiving funnel 565. The movable connection method enables the leaky hole inner barrel to rotate freely, ensuring that the materials can fully and evenly contact with the hot air during the rotation process. Through the leaky hole design, the materials can be screened during the drying process to remove excess moisture, dust and impurities.;

[0035] During operation, the sludge raw material enters the fixed feeding box 11 through the feeding hopper 12 and is evenly distributed between the two extrusion rollers 141 through the feeding slope 111. The first rotating motor 13 drives the two extrusion rollers 141 to rotate towards each other, and the hemispherical extrusion grooves 142 arranged equidistantly on their surfaces are accurately aligned to form a complete spherical cavity. The sludge is filled into the cavity under the double-roller extrusion and is initially formed into spherical particles with a diameter of 15 - 25 mm. The movable column barrel 143 inside the extrusion roller is driven by the eccentric disc 145, driving the movable pushing rod 144 to periodically stretch or rotate in the hemispherical extrusion groove. The trumpet-shaped design of the pushing rod gently pushes the formed particles out of the groove, avoiding adhesion and blockage of highly viscous sludge. The hemispherical scoop 164 of the cleaning device 16 adheres to the surface of the extrusion roller through the elastic rod 163 to scrape off the residual sludge; the air jet head 167 uses the waste heat of drying (80 - 120 °C) to jet a directional air flow to remove fine residues and accelerate the solidification of waste materials. The waste materials fall into the miscellaneous material collection box 165 through the arc-shaped guide. The initially formed particles enter the spherical rotating bin 32 through the feeding leakage box 112. The third rotating motor 34 drives the spherical bin to rotate. The particles continuously roll under the action of centrifugal force and the diversion of the triangular slope support frame 31 to eliminate the surface edges and corners and improve the roundness (sphericity ≥ 0.85). By adjusting the rotation speed of the spherical bin, the adhesion between particles is reduced; the sealed bin body inhibits dust emission, meeting the environmental protection requirements. The shaped particles are discharged from the discharge port 36 through the receiving bin 35 and directly fall onto the upper screen of the vibrating screen device 4. The vibrating motor 423 drives the perforated sieve tray 426 to vibrate at a high frequency with a small amplitude. The upper screen (aperture 15 mm) intercepts oversize particles, and the lower screen (aperture 10 mm) screens out debris. Qualified particles (10 - 15 mm) enter the drying device 5 through the conveying pipe 43, and the waste materials fall into the waste material collection box 44. The vibrating screen spring 424 buffers the vibration of the equipment to ensure the smoothness of screening and extend the service life of the screen. The qualified particles enter the drying rotary drum device 56 through the conveying pipe 43. The belt pulley rotating motor 562 drives the drying drum 561 to rotate. The particles tumble three-dimensionally in the perforated inner barrel 566. The blower 52 injects the hot air generated by the heating pipe box 53 into the drying drum through the air conveying pipe 54, penetrating the perforations to form a turbulent flow, accelerating the evaporation of moisture. Part of the waste heat is recycled to the air jet head 167 of the cleaning device to achieve the reuse of thermal energy. After drying, the ceramsite falls into the receiving funnel 565 through the leakage hole 569 to complete the output of the finished product.

[0036] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0037] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sludge ceramsite production device, comprising a granulation device (1), characterized in that: The lower end of the granulating device (1) is fixedly connected to a first support frame (2). Inside the first support frame (2), there is a ball-making device (3). On one side of the ball-making device (3), there is a vibrating screen device (4). On one side of the vibrating screen device (4) and fixedly connected to the bottom of the ball-making device (3), there is a drying device (5). The granulating device (1) includes a fixed feeding box (11). On the fixed feeding box (11), there is a feeding funnel (12). On one side of the fixed feeding box (11), there are two first rotating motors (13). At the output ends of both first rotating motors (13), there are extrusion devices (14). On the other end of the fixed feeding box (11), there is a bearing fixing plate (15). The extrusion device (14) is assembled with the bearing fixing plate (15) through the first rotating motor (13) to complete the function of rotational extrusion. On one side end of the extrusion device (14), a cleaning device (16) is fixedly connected to the fixed feeding box (11).

2. A sludge ceramsite production device according to claim 1, characterized in that: The cleaning device (16) includes a fixing plate (161). On one side end of the fixing plate (161), a number of second rotating motors (162) are arranged at equal intervals. The second rotating motors (162) penetrate through the fixing plate (161), and elastic rods (163) are provided at their output ends. At the front end of the elastic rod (163), there is a hemispherical spoon (164). At the lower end of the hemispherical spoon (164), there is a miscellaneous material collection box (165). Inside the upper end of the fixing plate (161), there is an air inlet pipe (166) penetrating through. On one side of the air inlet pipe (166), a number of jet nozzles (167) are arranged evenly at equal intervals. The jet nozzles (167) are fixedly connected to one side of the fixing plate (161) and are arranged above the hemispherical spoon (164) for jet cleaning after excavating waste materials.

3. The sludge ceramsite production device according to claim 2, characterized in that: At the inner bottom of the fixed feeding box (11), there is a feeding slope (111). At one end of the feeding slope (111), there is a feeding leakage box (112) for the collection and guiding of materials after extrusion is completed.

4. A sludge ceramsite production device according to claim 3, characterized in that: The extrusion device (14) includes an extrusion roller (141). On the extrusion roller (141), a number of hemispherical extrusion grooves (142) are arranged at equal intervals in a circle. Inside the extrusion roller (141), there is a movable column barrel (143). The movable column barrel (143) is flexible and movable. On the outer circle, a number of movable pushing rods (144) are arranged evenly at equal intervals. The movable pushing rods (144) penetrate through each of the hemispherical extrusion grooves (142), and their surfaces are flush with the hemispherical extrusion grooves (142) presenting an arc-shaped surface, and the whole presents a horn shape. On one side end inside the extrusion roller (141), there is an eccentric disc (145) for the fixing and movable rotation of the movable column barrel (143).

5. A sludge ceramsite production device according to claim 4, characterized in that: The pelletizing device (3) includes a triangular slope support frame (31). A spherical rotating bin (32) is arranged at the upper end of the triangular slope support frame (31). A connecting bearing rod (33) is fixedly connected to one side end of the spherical rotating bin (32). A third rotating motor (34) is fixedly connected to one end of the connecting bearing rod (33). A material receiving bin (35) is arranged at one side end of the spherical rotating bin (32). An outlet (36) is arranged at the bottom of one end of the material receiving bin (35). The outlet (36) is arranged at the upper end of the vibrating screen device (4).

6. The sludge ceramsite production device according to claim 5, wherein: The vibrating screen device (4) includes a third support frame (41). A vibrating device (42) is arranged at the upper end of the third support frame (41). A conveying pipe (43) is arranged at one side end of the vibrating device (42). A waste collection box (44) is arranged at the bottom of one side of the vibrating device (42). A guiding hole is arranged at one upper end of the conveying pipe (43) and is assembled and connected to the tail of the vibrating device (42). The vibrating device (42) is double-layered up and down. After screening is completed at the upper end, it is conveyed through the conveying pipe, and the waste discharged at the lower end is collected by the waste collection box (44).

7. The sludge ceramsite production device according to claim 6, characterized in that: The vibrating device (42) includes a fixed connection frame (421). A bearing plate connection frame (422) is arranged at the upper end of the fixed connection frame (421). A vibrating motor (423) is fixedly connected to the lower end of the bearing plate connection frame (422). Vibrating screen springs (424) are arranged at the four corners of the fixed connection frame (421). The upper ends of the vibrating screen springs (424) are fixedly connected to a bearing plate (425). A leakage hole sieve plate (426) is arranged at the upper end of the bearing plate (425). The fixed connection frame (421) is fixedly connected to the third support frame (41).

8. A sludge ceramsite production device according to claim 7, characterized in that: The drying device (5) includes a second support frame (51). A blower (52) is arranged at a corner inside the second support frame (51). A heating pipe box (53) is arranged at the output end of the blower (52). An air conveying pipe (54) is arranged at one side of the heating pipe box (53). A bearing platform (55) is arranged at the upper end of the heating pipe box (53). A drying rotating barrel device (56) is arranged at the upper end of the bearing platform (55).

9. The sludge ceramsite production device according to claim 8, characterized in that: The drying rotating barrel device (56) includes a drying barrel (561). A pulley rotating motor (562) is arranged at the upper end of the drying barrel (561). A rotating belt (563) is connected to the pulley rotating motor (562). A belt rotating wheel (564) is connected to the rotating belt (563). The belt rotating wheel (564) is fixedly connected to the drying barrel (561). A material receiving funnel (565) is arranged at the lower end of the drying barrel (561).

10. A sludge ceramsite production device according to claim 9, characterized in that: Inside the drying barrel (561), there is a perforated inner barrel (566). On one side of the perforated inner barrel (566), there is a rotating bearing (567). One end of the rotating bearing (567) is movably connected to the belt pulley (564), and the other end is movably connected to the perforated inner barrel (566). At one corner of the perforated inner barrel (566), there is a manual switch cover plate (568). The drying barrel (561) is set at an inclined angle, and there is a material leakage hole (569) at one corner of the bottom, which is connected to the receiving hopper (565).

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