A device and method for the recycling and treatment of slag tailings filter press sludge by drying and molding.

Abstract

This invention relates to the field of sludge drying treatment technology, specifically disclosing a device and method for the drying, molding, and recycling of slag tailings filter sludge. The device includes a base frame, with a top seat fixedly installed on the top of the base frame. An annular groove is formed on the inner side of the top seat, and a movable ring is rotatably connected to the inner side of the annular groove. A driving mechanism is fixedly installed on one side of the top seat, driving the movable ring to rotate. During the application of this technical solution, by setting up the driving mechanism, filter pressing mechanism, drying furnace, demolding module, and cleaning mechanism to operate in coordination, the material filtering, molding, drying, demolding, and cleaning processes are integrated into a single piece of equipment. The entire process relies on mechanical structures to complete station switching and process connection, reducing the frequency of manual operation, increasing the total amount of slag tailings sludge that can be processed per unit time, uniformly producing regular block-shaped materials, and simplifying the entire processing flow for solid waste recycling.

Description

Technical Field

[0001] This invention relates to the field of sludge drying treatment technology, and in particular to a device and method for drying and recycling slag tailings filter sludge. Background Technology

[0002] In the processing of slag tailings, a large amount of filter press sludge is generated. This type of sludge has a high water content, loose texture, takes up a lot of space when piled up, and is prone to dust and water and soil pollution. In order to realize the resource recycling of solid waste, the industry generally uses sludge drying treatment equipment to dehydrate and dry the filter press sludge of slag tailings. This reduces the water content of the sludge, regularizes the material form, and facilitates subsequent transportation, storage and secondary recycling. It is an indispensable core processing equipment in the solid waste treatment process of slag tailings and is widely used in industrial production scenarios such as metallurgical slag recycling, tailings purification and sludge harmless treatment.

[0003] Chinese Patent CN210620576U discloses a sewage sludge drying treatment device, which includes an inclined conveyor belt and a drying treatment component. The drying treatment component includes a support and a drying cylinder. A drying component is located at the end of the drying cylinder away from the inclined conveyor belt. The drying component includes an arc-shaped fixing frame, which is bolted to the inner surface of the drying cylinder. A heating pipe is located inside the arc-shaped fixing frame, and the heating pipe passes through one side of the arc-shaped fixing frame and is connected to a heating electrode. A C-shaped fixing plate is located on one side of the arc-shaped fixing frame, and a fan is located on the side of the C-shaped fixing plate away from the inner surface of the drying cylinder. The fan is connected to the inner surface of the drying cylinder through the C-shaped fixing plate. This invention, through the application of the sludge solidification component and the drying component, can achieve multi-angle drying treatment of sludge, thereby improving treatment efficiency.

[0004] The existing device has overall structural defects in actual slag tailings filtration and sludge treatment. The equipment only has a single drying function and does not integrate pre-pressure filtration, pressure dewatering and post-pressure molding and automatic demolding structures. In actual operation, a separate filtration device is required to complete the sludge pretreatment before it is transferred to the device for drying. The process is scattered and cannot form an integrated continuous operation process. At the same time, the device adopts an intermittent operation mode. After the material is dried, the finished product must be removed manually and re-loaded, which cannot achieve uninterrupted continuous drying and processing, greatly reducing the overall processing efficiency. Moreover, the dried slag tailings sludge can only form dry powder or irregular small block structures. The material morphology is loose and has poor regularity, which greatly increases the difficulty of subsequent handling, storage and recycling operations. It cannot meet the industrial-scale, continuous and integrated sludge drying and molding production needs, and needs to be improved. Summary of the Invention

[0005] The purpose of this invention is to provide a device and method for the recycling and processing of slag tailings filter press sludge through drying and molding, in order to solve the problems raised in the background art.

[0006] To achieve the above objectives, the present invention provides a device for the recycling and treatment of slag tailings filter press sludge drying and molding, comprising a base frame, a top seat fixedly installed on the top of the base frame, an annular groove formed on the inner side of the top seat, a movable ring rotatably connected to the inner side of the annular groove, a driving mechanism fixedly installed on one side of the top seat, the driving mechanism being used to drive the movable ring to rotate, a filter mechanism being installed in a ring at equal intervals on the inner side of the movable ring, a drying furnace fixedly installed on one side of the top of the top seat, a filter press mechanism fixedly installed on the other side of the top seat, the filter press mechanism being positioned above one of the filter mechanisms, a cleaning mechanism being provided in the middle of the top seat, the cleaning end of the cleaning mechanism being located on the side of the top seat away from the filter press mechanism; The filtration mechanism includes a mounting frame, which is fixedly installed on the inner side of the movable ring in a ring with equal spacing. An electric push rod is fixedly installed on the upper end of the mounting frame, and a filter support module is fixedly installed on the outer end of the electric push rod. A filter module is movably installed on the inner side of the filter support module, and a demolding module is provided at the bottom of the filter support module.

[0007] Furthermore, the filter carrier module includes a sealed and insulated furnace door, which is fixedly installed on the output end of the electric push rod. A filter press molding base is fixedly installed on the outside of the sealed and insulated furnace door. The demolding module is located at the bottom of the filter press molding base, and the filter module is movably located inside the filter press molding base.

[0008] Furthermore, the demolding module includes a square groove, which is formed on both sides of the bottom of the filter pressing mold base. A limit spring is fixedly connected to the inner side of the square groove, and a guide frame is fixedly installed at the bottom of the limit spring. The bottom end of the filter module is located between the inner sides of the guide frame. The demolding module also includes an arc-shaped guide seat, which is fixedly installed on the side of the top base near the cleaning mechanism. The arc-shaped guide seat is located directly below the cleaning mechanism.

[0009] Furthermore, a base is fixedly installed at the bottom of the base frame, and a filtrate collection tank is fixedly installed at the top of the base.

[0010] Furthermore, both sides of the arc-shaped guide seat are provided with guide slopes, and both sides of the guide frame are also adapted to be provided with guide slopes. The guide slopes on the guide frame are provided with strip grooves. The inner sides of the strip grooves are linearly arranged with equal spacing and rotatably connected to guide wheels. The guide wheels and the arc-shaped guide seat are rolled together. The arc-shaped guide seat is used to extrude the demolding module to achieve the purpose of demolding the sludge block formed on the top of the filter module.

[0011] Furthermore, the filter module includes a fixed horizontal plate, which is fixedly installed between the lower inner sides of the guide frame. An inner mounting disc is fixedly installed in the middle of the fixed horizontal plate, and a support rod is fixedly installed on the top of the inner mounting disc. A filter press plate is fixedly installed through the top of the support rod and through the filter press molding base. The filter press plate is movably connected to the inside of the filter press molding base.

[0012] Furthermore, the filter press mechanism includes a side seat, which is fixedly connected to the top seat on the side away from the cleaning mechanism. A support plate is fixedly installed on the top outer side of the side seat, and a top plate is fixedly installed on the top of the support plate. A filter press hydraulic cylinder is fixedly installed in the middle of the top plate, and a filter press template is fixedly installed at the bottom output end of the filter press hydraulic cylinder. The filter press template is located directly above the filter press forming mold base.

[0013] Furthermore, the drive mechanism includes a housing and a spur gear ring. The housing is fixedly connected to one side of the top seat. The interior of the housing is connected to the annular groove. A gearbox is fixedly connected to the bottom of the housing. A drive motor is provided at the bottom of the gearbox. The output end of the drive motor drives the spur gear to rotate through the gearbox. The spur gear ring is fixedly connected to the outer recess of the movable ring. The spur gear and the spur gear ring are meshed together.

[0014] Furthermore, the cleaning mechanism includes a support shaft and an external gear ring. The support shaft is located in the middle of the base frame. The bottom of the support shaft is fixedly connected to the top of the base. A top plate is fixedly installed on the top of the support shaft. An arc-shaped top frame is fixedly installed on one side of the top plate. Cleaning modules are rotatably connected to the bottom of the arc-shaped top frame at equal intervals along an arc. The arc-shaped top frame is located above the arc-shaped guide seat. The external gear ring is fixedly connected to the top of the mounting frame. The external gear ring and the cleaning module are connected in a transmission manner. The cleaning module includes rotating blocks, which are rotatably connected to the outside of an arc-shaped top frame and are arranged in an arc at equal intervals. Each rotating block is located above an arc-shaped guide seat. A rotating shaft is fixedly installed at the bottom of the rotating block. Cleaning brush plates are fixedly installed in a ring at equal intervals on the lower end of the outer surface of the rotating shaft. The bottom cleaning brush surface of the cleaning brush plate is in contact with the top of the filter plate in the demolded state. A driven gear is fixedly installed at the upper end of the rotating shaft, and the driven gear is meshed with an external gear ring.

[0015] A method for recycling and processing slag tailings filter press sludge by drying and molding includes the following steps: Step 1: Input the mixture of slag tailings, silt and sewage into the filter press molding die. The limit spring resets and drives the guide frame to move down. The filter press plate is at the lowest point of the die. The drive motor runs intermittently and drives the spur gear and spur ring step transmission through the gearbox to drive the movable ring to rotate and transport the filter mechanism that is filled with materials to the filter press pressure mechanism and stop and hover. Step 2: During the pause of the active ring, the hydraulic cylinder of the filter press drives the filter press pressure template to press down and squeeze the material. The moisture in the material is separated by the filter press plate and flows into the filter liquid collection tank. After the material is pressed and formed, the hydraulic cylinder of the filter press is lifted and reset. Step 3: The drive motor starts the next working step, and the moving ring transfers the filter mechanism that has completed the filter pressing to the drying oven station and stops again; Step 4: The electric push rod extends to push the filter press forming mold into the drying oven, and the oven door is sealed to close the oven body. The drying oven dries and removes water from the material. Step 5: After drying is complete, the electric push rod retracts and moves out of the mold base, and the movable ring transfers the filter mechanism to the corresponding station of the arc-shaped guide seat and the cleaning mechanism; Step Six: The guide wheel of the guide frame rolls into contact with the arc-shaped guide seat, and the arc-shaped guide seat pushes the guide frame to compress the limit spring and move upward, and the fixed horizontal plate and the inner mounting disc are raised synchronously; Step 7: The internally installed disc drives the support rod and the filter plate to move upward, pushing out the sludge block formed in the mold base, thus completing the material removal; Step 8: The movable ring drives the external gear ring to rotate. The external gear ring meshes with the driven gear to drive the rotating block, rotating shaft and cleaning brush plate to rotate, brushing and sweeping the surface of the filter plate. Step 9: After the plate surface is cleaned, the filtration mechanism rotates back to the feeding station with the movable ring and re-feeds materials for cyclic processing; Step 10: The equipment relies on a circular workstation to complete the continuous processing flow of feeding, filtration, drying, demolding, and plate cleaning in sequence.

[0016] Compared with the prior art, the beneficial effects of the present invention are: Firstly, in this invention, during the application of this technical solution, by setting up a drive mechanism in conjunction with multiple sets of filtration mechanisms, multiple processes of feeding, pressing, filtration, and drying can be carried out simultaneously during use. With the coordinated operation of the pressing and filtration mechanism and the filtrate collection tank, the sludge material can be pressurized and filtered inside the equipment, eliminating the need for the layout process of external filtration equipment and the material transfer operation across equipment. The pressing and filtration mechanism simultaneously completes the material compaction operation, producing shaped block material, reducing the subsequent material transfer and storage operation steps.

[0017] Secondly, in this invention, during the application of this technical solution, by setting up a drying furnace, a demolding module and a cleaning mechanism to cooperate with each other, the filter press material flows directly into the drying furnace to complete the dehydration treatment. The demolding module relies on mechanical linkage to complete the automatic release of the material, without the need for manual entry and exit of the equipment to pick up and put in the material. The cleaning mechanism follows the work station to clean the filter plate surface in a cycle, continuously removing the sludge and debris attached to the plate surface. The various work stations of the equipment operate continuously in rotation, which can continuously undertake sludge processing tasks, and can further improve the working efficiency of the equipment for slag and sludge treatment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the rear view structure in this invention; Figure 3 This is a top view of the structure in this invention; Figure 4 This is a schematic diagram of the structure viewed from below in this invention; Figure 5 This is a bottom view schematic diagram of the driving mechanism, cleaning mechanism and filtering mechanism in this invention; Figure 6 This is a top view of the internal structure of the top seat in this invention; Figure 7 This is a bottom view schematic diagram of the cleaning mechanism and the filtering mechanism in this invention; Figure 8 This is a top-view structural diagram of the filter mechanism in its disassembled state in this invention; Figure 9 This is a top view of the filter mechanism in the split state of the present invention.

[0019] In the diagram: 1. Base frame; 2. Top seat; 3. Annular groove; 4. Movable ring; 5. Drive mechanism; 51. Outer shell; 52. Spur gear ring; 53. Drive motor; 54. Gearbox; 55. Spur gear; 6. Filtering mechanism; 61. Mounting bracket; 62. Electric push rod; 63. Filter bearing module; 631. Sealed and insulated furnace door; 632. Filter press forming mold base; 64. Filter module; 641. Fixed horizontal plate; 642. Inner mounting disc; 643. Support rod; 644. Filter press filter plate; 65. Demolding module; 651. Square groove; 652. Limiting spring 653. Guide frame; 654. Arc-shaped guide seat; 655. Guide slope; 656. Strip groove; 657. Guide wheel; 7. Drying oven; 8. Filter press pressure mechanism; 81. Side seat; 82. Support plate; 83. Top plate; 84. Filter press hydraulic cylinder; 85. Filter press pressure template; 9. Cleaning mechanism; 91. Support shaft; 92. External gear ring; 93. Top plate; 94. Arc-shaped top frame; 95. Cleaning module; 951. Rotating block; 952. Rotating shaft; 953. Cleaning brush plate; 96. Driven gear; 10. Base; 11. Filtration liquid collection tank. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1 to 9 In this embodiment of the invention, a slag tailings filter sludge drying and molding recycling treatment device includes a base frame 1, a top seat 2 fixedly installed on the top of the base frame 1, an annular groove 3 opened on the inner side of the top seat 2, a movable ring 4 rotatably connected to the inner side of the annular groove 3, a driving mechanism 5 fixedly installed on one side of the top seat 2, the driving mechanism 5 is used to drive the movable ring 4 to rotate, a filter mechanism 6 is installed in a ring with equal spacing on the inner side of the movable ring 4, a drying oven 7 is fixedly installed on one side of the top of the top seat 2, a filter pressing mechanism 8 is fixedly installed on the other side of the top seat 2, the filter pressing mechanism 8 is set above a filter mechanism 6, a cleaning mechanism 9 is provided in the middle of the top seat 2, and the cleaning end of the cleaning mechanism 9 is set on the side of the top seat 2 away from the filter pressing mechanism 8; The filter mechanism 6 includes a mounting frame 61, which is arranged in a ring at equal intervals and fixedly installed on the inner side of the movable ring 4. An electric push rod 62 is fixedly installed on the upper end of the mounting frame 61, and a filter support module 63 is fixedly installed on the outer end of the electric push rod 62. A filter module 64 is movably installed on the inner side of the filter support module 63, and a demolding module 65 is provided at the bottom of the filter support module 63. By setting a drive mechanism 5, the movable ring 4 is driven to rotate along the annular groove 3, so that multiple filter mechanisms 6 can be driven to cyclically switch working positions during use. The pressure filter mechanism 8 and the drying oven 7 arranged on the top seat 2 respectively carry out pressure dehydration and drying treatment on the material inside the filter mechanism 6 in sequence. The electric push rod 6 is equipped with the filter mechanism 6. The rod 62 can drive the filter-bearing module 63 to adjust the working height. The filter-bearing module 63 contains the filter module 64 to receive sludge material. The demolding module 65 at the bottom can complete the demolding operation of the formed material. Multiple filter mechanisms 6 can operate synchronously to carry out different processing steps at the same time, which can reduce the waiting time caused by the individual operation of a single set of equipment. The filter-bearing module 63 forms a wrapping constraint on the filter module 64 to stabilize the placement state of the material during processing. The demolding module 65 is directly integrated into the bottom of the filter-bearing module 63, which can eliminate the need to add additional unloading components. The entire processing process is completed in one piece of equipment, which can reduce the material transfer operations caused by the segmented processing of multiple pieces of equipment.

[0022] Please see Figures 1-6 and Figures 8-9 The filter support module 63 includes a sealed and insulated furnace door 631, which is fixedly installed at the output end of the electric push rod 62. A filter press forming mold base 632 is fixedly installed on the outside of the sealed and insulated furnace door 631. A demolding module 65 is located at the bottom of the filter press forming mold base 632. The filter module 64 is movably located inside the filter press forming mold base 632. By setting the sealed and insulated furnace door 631 to receive the extension and retraction power of the electric push rod 62, the filter press forming mold base 632 can be driven to complete the position adjustment operation during use. This allows the filter press forming mold base 632 to accurately align with the filter press pressure station and the drying station. The filter press forming mold base 632 can support the filter slag tailings and filter sludge. The mixture provides a fixed cavity space for the material to be pressed and filtered. The filter module 64 is movably arranged inside the filter pressing mold 632, which can directly complete the solid-liquid separation of the material inside the mold cavity. The demolding module 65 is arranged at the bottom of the filter pressing mold 632, which can directly demold the material processed inside the mold. The sealed and heat-insulating furnace door 631 can block and close the drying area during the drying process, which can reduce heat loss during the drying process and make the material inside the mold more evenly heated. At the same time, the integrated arrangement of the various structures can simultaneously complete multiple processes such as filtration, forming, drying and demolding inside the mold, which can simplify the overall operation process of material processing.

[0023] Please see Figures 5-9 The demolding module 65 includes a square groove 651, which is formed on both sides of the bottom of the filter press forming mold base 632. A limit spring 652 is fixedly connected to the inner side of the square groove 651, and a guide frame 653 is fixedly installed at the bottom of the limit spring 652. The bottom end of the filter module 64 is located between the inner sides of the guide frame 653. The demolding module 65 also includes an arc-shaped guide seat 654, which is fixedly installed on the side of the top seat 2 near the cleaning mechanism 9. The arc-shaped guide seat 654 is located directly below the cleaning mechanism 9. By setting the limit spring 652 in the square groove 651 on both sides of the bottom of the filter press forming mold base 632, the limit spring 652 can be used to connect and support the guide frame 653 during use, so that the guide frame 653 can be kept in a stable state during normal operation. Maintaining a stable support position, it can provide stable support for the filter module 64 placed between the inner sides of the guide frame 653, ensuring that the filter module 64 will not shift position during the filtration and drying operations. By fixing the arc-shaped guide seat 654 at the corresponding position of the top seat 2, it can work in conjunction with the guide frame 653 to complete the linkage operation when the filter mechanism 6 moves to the designated station. During the station movement, the guide frame 653 can conform to the arc-shaped guide seat 654 to produce displacement changes, which can compress the limit spring 652 to deform and change the support height of the guide frame 653, thereby driving the filter module 64 to complete the lifting action, thus realizing the automatic demolding operation of the processed sludge material without manual disassembly and material removal, which can reduce the manual operation steps in the material demolding process.

[0024] Please see Figures 1-4 A base 10 is fixedly installed at the bottom of the base frame 1, and a filtrate collection tank 11 is fixedly installed at the top of the base 10. By setting the base 10 at the bottom of the base frame 1 to support the entire equipment, the entire working structure of the equipment can be stably supported during use, and the shaking and displacement of the equipment during operation can be avoided. By installing the filtrate collection tank 11 at the top of the base 10, the wastewater separated during the sludge filtration operation can be collected and gathered in a unified manner, which can prevent the wastewater generated by filtration from dripping and accumulating randomly, and can realize the centralized collection of filtration wastewater, which is convenient for subsequent unified treatment and recycling of wastewater.

[0025] Please see Figures 1-5Both sides of the arc-shaped guide seat 654 are provided with guide slopes 655, and both sides of the guide frame 653 are also provided with guide slopes 655. Each guide slope 655 on the guide frame 653 has a strip-shaped groove 656. The inner side of the strip-shaped groove 656 is linearly arranged with equal spacing and rotatably connected to guide wheels 657. The guide wheels 657 and the arc-shaped guide seat 654 are in rolling connection. The arc-shaped guide seat 654 is used to extrude the demolding module 65 to demold the sludge block formed on the top of the filter module 64. By providing guide slopes 655 on both sides of the arc-shaped guide seat 654 and the guide frame 653 respectively, the guide frame 653 can be guided to move smoothly by the fit of the slopes during use, which can standardize the demolding. The structural motion trajectory during operation is achieved by creating a strip-shaped groove 656 at the guide slope 655 of the guide frame 653 and arranging multiple sets of guide wheels 657 within the groove. This allows the guide frame 653 and the arc-shaped guide seat 654 to form a rolling contact, reducing the frictional resistance generated by the relative movement of the two structures and making the equipment station flow smoother. The arc-shaped guide seat 654 can continuously apply pressure to the guide frame 653, causing the guide frame 653 to shift and change position. This, in turn, links the filter module 64 to complete the lifting action, stably ejecting the sludge block that has been processed and formed on the top of the filter module 64 and demolding it. The demolding operation is completed entirely through mechanical linkage, ensuring the stability of the demolding operation.

[0026] Please see Figures 1-6 and Figures 8-9 The filter module 64 includes a fixed horizontal plate 641, which is fixedly installed between the lower inner sides of the guide frame 653. An inner mounting disc 642 is fixedly installed in the middle of the fixed horizontal plate 641, and a support rod 643 is fixedly installed on the top of the inner mounting disc 642. The top of the support rod 643 passes through the filter press forming mold base 632 and a filter press plate 644 is fixedly installed thereon. The filter press plate 644 is movably connected to the inside of the filter press forming mold base 632. By setting the overall structure of the fixed horizontal plate 641 and the inner mounting disc 642, the overall fixed installation can be completed with the help of the guide frame 653 during use, which can provide support for the upper support rod 643 and the filter press plate. 644 provides stable bottom support, and support rod 643 can transmit the lifting and displacement power of the bottom structure, enabling the filter plate 644 to move freely inside the filter molding die 632. The filter plate 644 can intercept solid sludge material during the material filtration process, allowing the water inside the material to pass through the plate smoothly to complete the solid-liquid separation operation. The entire structure moves synchronously with the demolding module 65, and can be raised with the bottom structure at the demolding station to actively push out the sludge block formed inside the die. The entire process relies on mechanical linkage to complete the filtration and demolding operations, allowing the filtration and demolding processes to cooperate and connect with each other, continuously cooperating with the equipment to complete the sludge processing.

[0027] Please see Figures 1-6 The filter press mechanism 8 includes a side seat 81, which is fixedly connected to the top seat 2 on the side away from the cleaning mechanism 9. A support plate 82 is fixedly installed on the outer top of the side seat 81, and a top plate 83 is fixedly installed on the top of the support plate 82. A filter press hydraulic cylinder 84 is fixedly installed in the middle of the top plate 83, and a filter press pressure template 85 is fixedly installed at the bottom output end of the filter press hydraulic cylinder 84. The filter press pressure template 85 is located directly above the filter press forming mold base 632. By setting the side seat 81, support plate 82, and top plate 83 to form a support structure, a stable support can be provided for the filter press hydraulic cylinder 84 during use. The mounting carrier allows the filter press hydraulic cylinder 84 to maintain a vertical and stable working posture. The filter press hydraulic cylinder 84 can drive the bottom filter press pressure template 85 to make vertical lifting and lowering movements, so that the filter press pressure template 85 can accurately connect with the filter press forming mold base 632 below. During the pressing process, uniform pressure can be applied to the slag tailings silt material inside the mold base, which can promote the rapid precipitation of water inside the material to complete solid-liquid separation. At the same time, it can compact and shape the loose silt material. The entire pressing operation is completed at a fixed point based on the fixed structure, and can continuously cooperate with the equipment cycle station to complete batch filter press forming operations.

[0028] Please see Figures 1-6 The drive mechanism 5 includes a housing 51 and a spur gear ring 52. The housing 51 is fixedly connected to one side of the top seat 2. The interior of the housing 51 is connected to the annular groove 3. A gearbox 54 is fixedly connected to the bottom of the housing 51. A drive motor 53 is provided at the bottom of the gearbox 54. The output end of the drive motor 53 drives the spur gear 55 to rotate through the gearbox 54. The spur gear ring 52 is fixedly connected to the outer recess of the movable ring 4. The spur gear 55 and the spur gear ring 52 are meshed. By setting the annular groove 3 of the housing 51 to connect the top seat 2, the gearbox 54 and the internal transmission structure can form a closed transmission working space. It can protect the internal gear transmission structure. The power output of the drive motor 53 can be adjusted and transmitted through the gearbox 54. It can drive the spur gear 55 to rotate continuously and at a constant speed. The spur gear 55 and the spur ring 52 maintain a meshing transmission state, which can transmit the rotational power to the movable ring 4. It can drive the movable ring 4 to rotate smoothly in the annular groove 3, thereby providing continuous power for the overall workstation rotation of the equipment. This allows each group of filter mechanism 6 to continuously switch workstations according to a fixed trajectory, ensuring that the equipment's pressing, drying, demolding, and cleaning processes are carried out in an orderly and cyclical manner.

[0029] Please see Figures 1-5 and Figure 7The cleaning mechanism 9 includes a support shaft 91 and an external gear ring 92. The support shaft 91 is located in the middle of the base frame 1. The bottom of the support shaft 91 is fixedly connected to the top of the base 10. A top plate 93 is fixedly installed on the top of the support shaft 91. An arc-shaped top frame 94 is fixedly installed on one side of the top plate 93. Cleaning modules 95 are rotatably connected to the bottom of the arc-shaped top frame 94 at equal intervals along an arc. The arc-shaped top frame 94 is located above the arc-shaped guide seat 654. The external gear ring 92 is fixedly connected to the top of the mounting frame 61. The external gear ring 92 and the cleaning module 95 are connected together. Transmission connection; the cleaning module 95 includes rotating blocks 951, which are rotatably connected to the outside of the arc-shaped top frame 94 in an arc-shaped arrangement at equal intervals. Each rotating block 951 is located above the arc-shaped guide seat 654. A rotating shaft 952 is fixedly installed at the bottom of the rotating block 951. Cleaning brush plates 953 are fixedly installed in a ring-shaped arrangement at equal intervals on the lower end of the outer surface of the rotating shaft 952. The bottom cleaning brush surface of the cleaning brush plate 953 is in contact with the top of the filter plate 644 in the demolded state. A drive shaft 952 is fixedly installed at the upper end of the rotating shaft 952. The driven gear 96 and the external gear ring 92 mesh with each other. A fixed support structure for the cleaning mechanism 9 is formed by the support shaft 91, top plate 93, and arc-shaped top frame 94. This provides a stable installation position for each cleaning module 95 during use, allowing the cleaning module 95 to maintain a fixed working height and range over a long period. The external gear ring 92 on the top of the mounting frame 61 meshes with the driven gear 96, enabling continuous operation of the rotating block 951 and rotating shaft 952 via the mechanical power of the equipment's rotation. The cleaning operation can be completed without the need for additional power drive components. The rotating shaft 952 drives multiple sets of cleaning brushes 953 to rotate synchronously, so that the cleaning brush surface of the cleaning brushes 953 can continuously adhere to the surface of the filter plate 644 after demolding and perform brushing treatment. This can promptly remove the fine sludge and debris remaining on the plate surface, prevent impurities from accumulating and clogging the filter structure, and keep the filter plate 644 in a good filtration state at all times. This allows for continuous adaptation to the uninterrupted cycle processing of the equipment and improves the convenience of the overall molding process.

[0030] A method for recycling and processing slag tailings filter press sludge by drying and molding includes the following steps: Step 1: The mixture of slag, tailings, sludge, and wastewater is completely poured into the filter press molding die 632. Before any processing is started, the limit spring 652 remains fully reset, pulling the guide frame 653 downwards. The guide frame 653 simultaneously moves the fixed horizontal plate 641, the internal mounting disc 642, and the support rod 643 downwards. The filter plate 644 connected to the top of the support rod 643 then stops at the lowest position inside the filter press molding die 632, thus reserving sufficient space to store the mixture and providing a standard working space for subsequent solid-liquid filtration operations. The drive motor 53 inside the drive mechanism 5 is then started to output operating power. Power is transmitted to spur gear 55 through the internal transmission structure of gearbox 54. Spur gear 55 rotates intermittently under control command. Spur gear 55 and spur ring 52 mesh and drive the movable ring 4 to smoothly rotate and stop in the annular groove 3 opened on the inner side of the top seat 2 according to the work station interval. During the rotation of the movable ring 4, the filter mechanism 6 arranged in a ring on the inner side is synchronously driven to complete the annular displacement. Relying on the continuously rotating movable ring 4 to rotate the corresponding working position of each filter module 64, the filter module 64 that has been filled with mixed materials and has not been processed is accurately transported to the processing station directly below the filter press mechanism 8, thus completing the automatic switching operation of the equipment processing station. Step Two: After the material-loaded filtration mechanism 6 smoothly moves to the designated filtration station corresponding to the pressure-applying mechanism 8, the hydraulic cylinder 84 installed in the middle of the top plate 83 above the side seat 81 of the equipment starts. The hydraulic cylinder 84 extends downwards to its output end, simultaneously driving the pressure-applying template 85 fixed at the bottom to move slowly and vertically downwards. The pressure-applying template 85 gradually fits against the mixture of slag, tailings, silt, and sewage contained inside the filtration molding mold 632, continuously applying uniform and stable mechanical pressure to the material inside the mold. During the process of the material bearing external pressure, the free water trapped inside will gradually pass through. The plate structure of the filter plate 644 completes solid-liquid separation. The separated wastewater falls naturally downwards by its own gravity and is collected in the filter liquid collection tank 11 fixedly installed at the top of the base 10. After continuous mechanical filtration, the material will initially solidify and form inside the filter molding die 632, while removing most of the free water inside the material. After the entire filtration operation is completed, the filter hydraulic cylinder 84 rotates in reverse to drive the filter pressure template 85 to vertically reset and lift, freeing up complete workstation movement space for the subsequent moving ring 4 to drive the filter mechanism 6 to rotate. Step 3: After the filter pressing and forming process is completed, the drive motor 53 receives the switching command and enters the next operating cycle. It drives the movable ring 4 to rotate step by step through the transmission structure of gearbox 54, spur gear 55 and spur ring 52. During the operation of the movable ring 4, the filter mechanism 6, which has completed the filter pressing and dewatering forming process, is smoothly transferred to the dedicated work station corresponding to the drying oven 7 on the side of the top seat 2, waiting to carry out the subsequent drying and dewatering operation. Step 4: After the filter mechanism 6 is transferred to the corresponding station of the drying oven 7, the electric push rod 62 fixed at the upper end of the mounting frame 61 is activated. The electric push rod 62 extends outward and pushes the filter carrier module 63 connected to its outer end to move outward as a whole. The filter carrier module 63 drives the filter pressing mold base 632 fixed on the outside to move synchronously, so that the filter pressing mold base 632, which is loaded with the pre-formed sludge material, is smoothly sent into the internal cavity of the drying oven 7. The sealed heat-insulating oven door 631 moves synchronously with the filter carrier module 63 and fits and blocks the opening on the outside of the drying oven 7, completely sealing the drying operation space inside the drying oven 7. This reduces the loss of heat from the oven during the drying operation. After the sealing operation is completed, the drying oven 7 is started to continuously supply heat and perform long-term drying treatment on the pre-formed sludge material inside the mold base to completely remove the residual bound moisture inside the material. Step 5: After the drying oven 7 has completed the drying of the sludge material, the electric push rod 62 is controlled to retract and reset in the reverse direction. The electric push rod 62 drives the filter bearing module 63 and the filter pressing mold base 632 to move out of the internal cavity of the drying oven 7 in a synchronized manner. The drive motor 53 inside the drive mechanism 5 continues to run continuously, driving the moving ring 4 to rotate in a circle, and smoothly transferring the filter mechanism 6 that has completed the drying treatment to the processing area corresponding to the cleaning mechanism 9 and the arc-shaped guide seat 654 in the middle of the top seat 2. Step Six: When the dried and formed filter mechanism 6 reaches the demolding station as the moving ring 4 continues to rotate, the guide slopes 655 on both sides of the guide frame 653 and the guide slopes 655 on both sides of the arc-shaped guide seat 654 are in contact with each other. Multiple sets of guide wheels 657 are rotatably connected inside the strip grooves 656 on the guide slopes 655 of the guide frame 653. The guide wheels 657 and the surface of the arc-shaped guide seat 654 form a rolling contact fit. The rolling contact reduces the frictional resistance generated when the two structures are in contact and move together. During the continuous circular flow of the equipment, the arc-shaped guide seat 654 continuously applies an upward pushing force to the guide frame 653. After the guide frame 653 is subjected to the upward force, it will overcome the elastic force of the limit spring 652 inside the square groove 651 and move upward. During the upward lifting of the guide frame 653, the fixed horizontal plate 641 fixed between the lower inner ends and the inner mounting disc 642 installed in the middle of the fixed horizontal plate 641 are simultaneously lifted upward. Step 7: As the inner mounting disc 642 is lifted upward in sync with the guide frame 653, the support rod 643 fixed at the top of the inner mounting disc 642 moves upward in sync. When the support rod 643 moves upward, it drives the filter plate 644, which is set at the top of the filter press forming mold 632 through the filter press forming mold base 632, to move upward as a whole inside the filter press forming mold base 632. During the upward lifting of the filter plate 644, the dry sludge block that has been completely formed after the complete filter press drying treatment inside the mold base is pushed upward from inside the mold base. The staff can directly and manually take out the formed sludge block, or it can be used with an external robotic arm to complete the automated material handling operation. Step 8: After all the sludge blocks have been removed, the movable ring 4 continues to rotate in a circular state. The movable ring 4 drives the external toothed ring 92 fixed on the top of the mounting frame 61 to move in a ring. During the rotation of the external toothed ring 92, it forms a meshing transmission with the driven gear 96 at the top of the rotating block 951 inside the cleaning module 95. The displacement of the external toothed ring 92 drives the driven gear 96 to rotate continuously. The driven gear 96 drives the rotating block 951 and the rotating shaft 952 fixed at the bottom of the rotating block 951 to keep rotating. Multiple sets of cleaning brushes 953 arranged in a ring at the lower end of the outer surface of the rotating shaft 952 rotate at high speed in sync with the rotating shaft 952. The cleaning brush surface at the bottom of the cleaning brushes 953 completely adheres to the top surface of the filter plate 644 in the demolded and lifted state to continuously complete the sweeping and brushing operation. Step Nine: The continuously operating cleaning brush 953 completely sweeps and brushes the surface of the filter press plate 644 to thoroughly remove any remaining fine sludge and impurities, preventing sludge debris from clogging the filter holes of the filter press plate 644. After the surface of the filter press plate 644 is completely cleaned, the entire filtration mechanism 6 continues to rotate in a circular motion with the moving ring 4, returning to the initial material feeding station. The staff then feeds the mixture of slag tailings sludge and sewage into the filter press molding mold 632 again, completely repeating all the above processing operations, and continuously carrying out the sludge drying and molding treatment operation. Step 10: This technical solution utilizes a ring-shaped multi-station cyclic operation structure to integrate multiple processing steps, including material feeding, pressure filtration, solid-liquid separation, high-temperature drying, automatic demolding, and plate cleaning, into a single integrated operation. During equipment operation, there is no need for separate external filtration equipment to pre-treat the sludge raw materials. The entire processing flow relies on various internal mechanical structures to complete station switching and process connection, eliminating the need for manual material handling and plate cleaning. The simultaneous operation of multiple filtration units at different processing stations avoids equipment idleness caused by single-process operation, enabling uninterrupted and continuous furnace operation. The slag and silt processing work, along with the mechanical pressure operation of the filter press mechanism 8, can process loose silt into regular solid mud blocks, changing the state of dry powder or irregular fragments after processing by traditional equipment, reducing the operational difficulty in subsequent material transfer and storage. The filter liquid collection tank 11 at the top of the base 10 can uniformly collect the wastewater separated by the filter press operation, realizing centralized water resource recycling and treatment. The automatic cleaning mechanism 9 can continuously maintain the cleanliness of the filter plate 644, reducing the interference of filter hole blockage on solid-liquid separation operation, and stabilizing the processing and operation status of the entire set of equipment.

Claims

1. A device for the drying and recycling of slag tailings filter press sludge, characterized in that, The system includes a base frame (1), a top seat (2) is fixedly installed on the top of the base frame (1), an annular groove (3) is opened on the inner side of the top seat (2), a movable ring (4) is rotatably connected to the inner side of the annular groove (3), a drive mechanism (5) is fixedly installed on one side of the top seat (2), the drive mechanism (5) is used to drive the movable ring (4) to rotate, a filter mechanism (6) is installed in a ring with equal spacing on the inner side of the movable ring (4), a drying oven (7) is fixedly installed on one side of the top of the top seat (2), a filter press mechanism (8) is fixedly installed on the other side of the top seat (2), the filter press mechanism (8) is set above a filter mechanism (6), a cleaning mechanism (9) is provided in the middle of the top seat (2), and the cleaning end of the cleaning mechanism (9) is set on the side of the top seat (2) away from the filter press mechanism (8); The filtration mechanism (6) includes a mounting frame (61), which is fixedly installed on the inner side of the movable ring (4) in a ring-shaped arrangement with equal spacing. An electric push rod (62) is fixedly installed on the upper end of the mounting frame (61), and a filter support module (63) is fixedly installed on the outer end of the electric push rod (62). A filter module (64) is movably installed on the inner side of the filter support module (63), and a demolding module (65) is provided at the bottom of the filter support module (63).

2. The slag tailings filter press sludge drying and molding recycling treatment device according to claim 1, characterized in that, The filter support module (63) includes a sealed heat-insulating furnace door (631), which is fixedly installed at the output end of an electric push rod (62). A filter press molding base (632) is fixedly installed on the outside of the sealed heat-insulating furnace door (631). The demolding module (65) is located at the bottom of the filter press molding base (632). The filter module (64) is movably installed inside the filter press molding base (632).

3. The slag tailings filter press sludge drying and molding recycling treatment device according to claim 2, characterized in that, The demolding module (65) includes a square groove (651), which is opened on both sides of the bottom of the filter press molding mold base (632). A limit spring (652) is fixedly connected to the inner side of the square groove (651). A guide frame (653) is fixedly installed at the bottom of the limit spring (652). The bottom end of the filter module (64) is located between the inner sides of the guide frame (653). The demolding module (65) also includes an arc-shaped guide seat (654), which is fixedly installed on the side of the top seat (2) near the cleaning mechanism (9). The arc-shaped guide seat (654) is located directly below the cleaning mechanism (9).

4. The slag tailings filter press sludge drying and molding recycling treatment device according to claim 3, characterized in that, A base (10) is fixedly installed at the bottom of the base frame (1), and a filter press collection tank (11) is fixedly installed at the top of the base (10).

5. The slag tailings filter press sludge drying and molding recycling treatment device according to claim 4, characterized in that, The arc-shaped guide seat (654) has guide slopes (655) on both sides, and the guide frame (653) also has guide slopes (655) on both sides. The guide slopes (655) on the guide frame (653) are all provided with strip grooves (656). The inner side of the strip grooves (656) is linearly arranged with equal spacing and rotatably connected to guide wheels (657). The guide wheels (657) and the arc-shaped guide seat (654) are rolled together. The arc-shaped guide seat (654) is used to squeeze the demolding module (65) to demold the sludge block formed on the top of the filter module (64).

6. The slag tailings filter press sludge drying and molding recycling treatment device according to claim 5, characterized in that, The filter module (64) includes a fixed horizontal plate (641), which is fixedly installed between the inner lower ends of the guide frame (653). An inner mounting disc (642) is fixedly installed in the middle of the fixed horizontal plate (641), and a support rod (643) is fixedly installed on the top of the inner mounting disc (642). The top of the support rod (643) passes through the filter press forming mold base (632) and a filter press plate (644) is fixedly installed thereon. The filter press plate (644) is movably connected to the inside of the filter press forming mold base (632).

7. The slag tailings filter press sludge drying and molding recycling treatment device according to claim 6, characterized in that, The filter press mechanism (8) includes a side seat (81), which is fixedly connected to the top seat (2) on the side away from the cleaning mechanism (9). A support plate (82) is fixedly installed on the top outer side of the side seat (81), and a top plate (83) is fixedly installed on the top of the support plate (82). A filter press hydraulic cylinder (84) is fixedly installed in the middle of the top plate (83). A filter press template (85) is fixedly installed at the bottom output end of the filter press hydraulic cylinder (84). The filter press template (85) is located directly above the filter press forming mold base (632).

8. The slag tailings filter press sludge drying and molding recycling treatment device according to claim 7, characterized in that, The drive mechanism (5) includes a housing (51) and a spur ring (52). The housing (51) is fixedly connected to one side of the top seat (2). The interior of the housing (51) is connected to the annular groove (3). A gearbox (54) is fixedly connected to the bottom of the housing (51). A drive motor (53) is provided at the bottom of the gearbox (54). The output end of the drive motor (53) drives the spur gear (55) to rotate through the gearbox (54). The spur ring (52) is fixedly connected to the outer recess of the movable ring (4). The spur gear (55) and the spur ring (52) are meshed.

9. The slag tailings filter press sludge drying and molding recycling treatment device according to claim 8, characterized in that, The cleaning mechanism (9) includes a support shaft (91) and an external toothed ring (92). The support shaft (91) is located in the middle of the base frame (1). The bottom of the support shaft (91) is fixedly connected to the top of the base (10). A top plate (93) is fixedly installed on the top of the support shaft (91). An arc-shaped top frame (94) is fixedly installed on one side of the top plate (93). Cleaning modules (95) are rotatably connected to the bottom of the arc-shaped top frame (94) at equal intervals along an arc. The arc-shaped top frame (94) is located above the arc-shaped guide seat (654). The external toothed ring (92) is fixedly connected to the top of the mounting frame (61). The external toothed ring (92) and the cleaning module (95) are connected in a transmission manner. The cleaning module (95) includes rotating blocks (951), which are rotatably connected to the outside of the arc-shaped top frame (94) with equal spacing and arranged in an arc shape. Each of the rotating blocks (951) is located above the arc-shaped guide seat (654). A rotating shaft (952) is fixedly installed at the bottom of the rotating block (951). A cleaning brush plate (953) is fixedly installed at equal spacing and arranged in a ring shape at the lower end of the outer surface of the rotating shaft (952). The bottom cleaning brush surface of the cleaning brush plate (953) is in contact with the top of the filter plate (644) in the demolded state. A driven gear (96) is fixedly installed at the upper end of the rotating shaft (952). The driven gear (96) is meshed with the external gear ring (92).

10. A method for the recycling and processing of slag tailings filter press sludge through drying and molding, comprising the slag tailings filter press sludge drying and molding recycling and processing device as described in any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Input the mixture of slag tailings silt and sewage into the filter press molding die (632). The limit spring (652) resets and drives the guide frame (653) to move down. The filter press plate (644) is at the lowest point of the die. The drive motor (53) runs intermittently and drives the spur gear (55) and spur ring (52) through the gearbox (54) in a step-by-step transmission. The drive ring (4) rotates and conveys the filter mechanism (6) that is filled with materials to the filter press pressure mechanism (8) and stops and hangs. In step two, during the pause of the active ring (4), the filter press hydraulic cylinder (84) drives the filter press pressure template (85) to press down and squeeze the material. The moisture in the material is separated by the filter press filter plate (644) and flows into the filter press liquid collection tank (11). After the material is pressed and formed, the filter press hydraulic cylinder (84) is lifted and reset. Step 3: Drive motor (53) starts the next working step, and moving ring (4) transfers the filter mechanism (6) that has completed the filter pressing to the drying oven (7) station and stops again; Step 4: The electric push rod (62) extends to push the filter press forming mold base (632) into the drying oven (7), and the heat-insulating oven door (631) is sealed to close the oven body. The drying oven (7) dries and removes water from the material. Step 5: After drying is completed, the electric push rod (62) retracts and moves out of the mold base, and the movable ring (4) transfers the filter mechanism (6) to the arc-shaped guide seat (654) and the corresponding station of the cleaning mechanism (9); Step 6: The guide wheel (657) of the guide frame (653) rolls into contact with the arc-shaped guide seat (654), and the arc-shaped guide seat (654) pushes the guide frame (653) to compress the limiting spring (652) and move upward. The fixed horizontal plate (641) and the inner mounting disc (642) are raised synchronously. Step 7: The inner installation disc (642) drives the support rod (643) and the filter press plate (644) to move upward, ejecting the sludge block formed in the mold base, and completing the material removal; Step 8: The movable ring (4) drives the external gear ring (92) to rotate. The external gear ring (92) meshes with the driven gear (96) to drive the rotating block (951), the rotating shaft (952) and the cleaning brush plate (953) to rotate, and brush the surface of the filter plate (644). Step 9: After the plate surface is cleaned, the filter mechanism (6) rotates back to the feeding station with the moving ring (4) and re-feeds materials for cyclic processing; Step 10: The equipment relies on a circular workstation to complete the continuous processing flow of feeding, filtration, drying, demolding, and plate cleaning in sequence.

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