Leaching residue stabilisation pretreatment system
Patent Information
- Application Number
- CN202522472047.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-21
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-11-21
AI Technical Summary
出料控制单元可以有效的控制出料颗粒的大小，兼容性更高，提高破碎的精度以及控制的效果，以使后续的混合等工序处理质量更好，解决了现有技术中通用破碎机在处理湿润、致密的滤饼时容易将其进一步压实成“死团”导致破碎效果较差的问题
[0016]本实用新型由于采用了上述的浸出渣稳定化预处理系统，相较于现有技术，其有益效果为：本实用新型涉及一种浸出渣稳定化预处理系统，该浸出渣稳定化预处理系统包括滤饼破碎组件、转料组件、药剂送料组件、搅拌组件以及输出组件。滤饼破碎组件包括进料单元、破碎驱动单元、滤饼破碎机与出料控制单元。进料单元用于将滤饼输送至滤饼破碎机中。滤饼破碎机包括支座、破碎桶、连接轴以及多组刀具。破碎桶固定于支座上，破碎桶内设置有腔体。破碎桶位于进料单元的一侧设置有进料口，破碎桶的另一侧设置有出料口，出料控制单元设置于出料口。连接轴设置于腔体内，连接轴的两端均通过轴承连接于对应的支座上，破碎驱动单元与连接轴的一端固定连接，以带动连接轴转动。沿连接轴的圆周方向间隔设置有多组刀具，刀具延长度方向的一侧与连接轴的周侧固定连接，刀具沿长度方向的另一侧与腔体的内侧壁间隔设置。转料组件的一端设置于出料控制单元的一侧。药剂送料组件用于提供药剂。药剂送料组件的出料端与转料组件的输出端均连接于搅拌组件的进料口，搅拌组件用于将破碎后的物料与药剂搅拌混合。输出组件设置于搅拌组件的出料口，用于将混合后的物料输送至设定位置。该浸出渣稳定化预处理系统通过大扭矩、低转速的破碎驱动单元驱动刀具进行破碎作业，可以确保刀具能轻松破碎坚硬的滤饼块。破碎桶内部空间大，能够有效的防止堵塞现象，提供更充足的破碎作业空间，提高破碎的效果。出料控制单元可以有效的控制出料颗粒的大小，兼容性更高，提高破碎的精度以及控制的效果，以使后续的混合等工序处理质量更好。
Smart Images
Figure CN224865327U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter cake crushing equipment, and in particular to a leaching residue stabilization pretreatment system. Background Technology
[0002] Filter presses are widely used solid-liquid separation equipment in modern industrial production, with applications in environmental protection (e.g., sludge dewatering), mining (e.g., concentrate and tailings dewatering), chemical, food, and pharmaceutical industries. After processing, the output of a filter press is typically a large, viscous filter cake with high moisture content. These filter cakes are often dense, severely caked, and still contain some moisture or volatile media. Many subsequent processes, such as uniform mixing with other materials, chemical reactions, conveying as raw materials, or further drying, require materials to be fine and uniform in particle size. However, the filter cake directly produced by a filter press is large and hard, failing to meet these requirements. Therefore, effective crushing pretreatment of the filter cake is necessary.
[0003] Currently, some production sites use general-purpose crushing equipment (such as jaw crushers, roll crushers, and even hammer crushers) to process filter cake. However, when processing wet and dense filter cake, general-purpose crushers (especially those based on impact and compression) tend to further compact it into "dead clumps" rather than effectively breaking it into loose particles, which increases the difficulty of subsequent processing and results in poor crushing effect.
[0004] Therefore, a leaching residue stabilization pretreatment system is needed to solve the above problems. Utility Model Content
[0005] This utility model relates to a leaching residue stabilization pretreatment system. This system utilizes a high-torque, low-speed crushing drive unit to drive the blades for crushing operations, ensuring that the blades can easily crush hard filter cake blocks. The large internal space of the crushing chamber effectively prevents clogging, providing ample crushing space and improving crushing efficiency. The discharge control unit effectively controls the size of the discharged particles, offering greater compatibility and improving crushing precision and control, resulting in better processing quality in subsequent mixing and other processes. This solves the problem in existing general-purpose crushers that easily further compact moist, dense filter cakes into "dead clumps," leading to poor crushing results.
[0006] To solve the above problems, the present invention provides: a leaching residue stabilization pretreatment system, comprising: A filter cake crushing assembly includes a feeding unit, a crushing drive unit, a filter cake crusher, and a discharge control unit. The feeding unit conveys the filter cake to the filter cake crusher, which includes a support, a crushing barrel, a connecting shaft, and multiple sets of cutters. The crushing barrel is fixed to the support and has a cavity. The crushing barrel has an inlet on one side of the feeding unit and an outlet on the other side, with the discharge control unit located at the outlet. The connecting shaft is located within the cavity, with both ends connected to the corresponding supports via bearings. The crushing drive unit is fixedly connected to one end of the connecting shaft to drive its rotation. Multiple sets of cutters are spaced apart along the circumference of the connecting shaft. One side of each cutter in its extension direction is fixedly connected to the circumference of the connecting shaft, and the other side of each cutter in its length direction is spaced apart from the inner wall of the cavity. Material transfer assembly; one end of the material transfer assembly is disposed on one side of the discharge control unit; Pharmaceutical feeding assembly for supplying pharmaceuticals; A mixing assembly, wherein the discharge end of the pharmaceutical feeding assembly and the output end of the transfer assembly are both connected to the inlet of the mixing assembly, the mixing assembly being used to mix the crushed material with the pharmaceutical agent; and, An output component is provided at the outlet of the mixing component and is used to transport the mixed material to a set position.
[0007] Furthermore, the cutting tools are provided in four sets, with adjacent sets of cutting tools arranged perpendicularly to facilitate cutting the filter cake and ensure the quality of cutting.
[0008] Furthermore, the discharge control unit is positioned to protrude from the outer wall of the crushing barrel to prevent clogging and facilitate the discharge of small filter cake particles.
[0009] Furthermore, the discharge control unit is equipped with a replaceable sieve plate, which has multiple through holes for screening granular filter cake. The size of the discharged particles can be adjusted by replacing the sieve plate with one of different aperture sizes to meet the requirements of subsequent processes, thus offering greater compatibility.
[0010] Furthermore, the crushing barrel is configured as a cylindrical structure, and the screen plate is configured as an arc-shaped plate structure. The arc length of the screen plate is less than one-quarter of the circumference of the crushing barrel, which can increase the path of filter cake cutting and thus improve the cutting quality.
[0011] Furthermore, the material transfer assembly includes a discharge hood, a buffer belt, and a material transfer drive unit. The discharge hood is positioned above the outer periphery of the discharge control unit so that the output granular filter cake is placed on the buffer belt, facilitating the collection of any ejected granular filter cake. This design is simple and cost-effective. The material transfer drive unit drives the buffer belt to transport the granular filter cake to the mixing assembly. The buffer belt increases the conveying area, improves conveying efficiency, and prevents equipment blockage.
[0012] Furthermore, the stirring assembly includes a stirring drive unit, a support base, a stirring tank, and a stirring unit. The stirring drive unit drives the stirring tank to rotate. The stirring tank is tilted downwards and rotatably mounted on the support base, with the height of the inlet of the stirring tank higher than the height of the outlet. The material falls freely under gravity, forming a material curtain. During the fall, the material particles interpenetrate and penetrate each other, achieving micro-mixing and thus improving the mixing quality. A mixing chamber is provided inside the stirring tank, and the stirring unit is installed within the mixing chamber. The stirring unit is used to lift the granular material and the agent from the lower end to the upper end of the stirring tank, allowing the material and agent to fall freely and mix more evenly.
[0013] Furthermore, the stirring drive unit includes a stirring motor, a reducer, a drive shaft, and multiple sets of drive rollers. The output shaft of the stirring motor is connected to one end of the drive shaft via the reducer. The drive shaft is positioned along the same length as the stirring tank and is spaced apart from the stirring tank. Multiple sets of drive rollers are spaced apart along the length of the drive shaft. The circumferential sides of the multiple sets of drive rollers are in close contact with the outer wall of the stirring tank to drive the stirring tank to rotate, resulting in stable driving and low cost.
[0014] Furthermore, the inclination angle between the centerline of the mixing tank and the horizontal plane is set to 2°-5°, which can improve the mixing efficiency and quality.
[0015] Furthermore, the agent feeding assembly includes an agent feed hopper, an agent distributor, and a feed chute. The agent feed hopper is located above the agent distributor, and the feed chute is located at one end of the agent distributor near the filter cake crushing assembly. The feed chute is inclinedly positioned between the discharge port of the agent distributor and the transfer assembly. The feed chute can improve the conveying efficiency and prevent the agent from sticking or clogging the discharge port of the agent distributor.
[0016] This utility model, by employing the aforementioned leaching residue stabilization pretreatment system, offers the following advantages compared to existing technologies: This utility model relates to a leaching residue stabilization pretreatment system, which includes a filter cake crushing assembly, a material transfer assembly, a reagent feeding assembly, a stirring assembly, and an output assembly. The filter cake crushing assembly includes a feeding unit, a crushing drive unit, a filter cake crusher, and a discharge control unit. The feeding unit is used to transport the filter cake to the filter cake crusher. The filter cake crusher includes a support, a crushing barrel, a connecting shaft, and multiple sets of cutters. The crushing barrel is fixed to the support, and a cavity is provided inside the crushing barrel. An inlet is located on one side of the crushing barrel near the feeding unit, and an outlet is located on the other side of the crushing barrel. The discharge control unit is located at the outlet. The connecting shaft is located within the cavity, and both ends of the connecting shaft are connected to corresponding supports via bearings. The crushing drive unit is fixedly connected to one end of the connecting shaft to drive its rotation. Multiple sets of cutters are spaced apart along the circumference of the connecting shaft. One side of the cutter's extension direction is fixedly connected to the circumference of the connecting shaft, and the other side of the cutter's length direction is spaced apart from the inner wall of the cavity. One end of the material transfer assembly is located on one side of the discharge control unit. The reagent feeding assembly is used to supply the reagent. The discharge end of the reagent feeding assembly and the output end of the material transfer assembly are both connected to the inlet of the stirring assembly, which is used to mix the crushed material with the reagent. The output assembly is located at the discharge port of the stirring assembly and is used to transport the mixed material to a set position. This leaching residue stabilization pretreatment system uses a high-torque, low-speed crushing drive unit to drive the cutters for crushing operations, ensuring that the cutters can easily crush hard filter cake blocks. The large internal space of the crushing tank effectively prevents clogging, provides more ample crushing space, and improves the crushing effect. The discharge control unit can effectively control the size of the discharged particles, has higher compatibility, improves the crushing accuracy and control effect, and thus improves the quality of subsequent mixing and other processing steps. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments are briefly introduced below. The drawings described below are only the corresponding drawings of some embodiments of this utility model.
[0018] Figure 1 This is a schematic diagram of an embodiment of the leaching residue stabilization pretreatment system of this utility model.
[0019] Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of the filter cake crushing component of the leaching residue stabilization pretreatment system of this utility model.
[0020] Figure 3 This is a side view of an embodiment of the filter cake crushing component of the leaching residue stabilization pretreatment system of this utility model.
[0021] Figure 4 This is a top view of an embodiment of the filter cake crushing component of the leaching residue stabilization pretreatment system of this utility model.
[0022] Figure 5 This is a front view of an embodiment of the stirring assembly of the leaching residue stabilization pretreatment system of this utility model.
[0023] In the diagram: 1. Leaching residue stabilization pretreatment system; 2. Filter cake crushing assembly; 21. Feeding unit; 211. Filter cake feed hopper; 212. Filter cake distributor; 22. Crushing drive unit; 23. Filter cake crusher; 231. Support; 232. Crushing barrel; 2321. Cavity; 233. Connecting shaft; 234. Cutting tool; 24. Discharge control unit; 3. Transfer assembly; 31. Discharge hood; 32. Buffer belt; 33. Transfer drive unit; 4. Chemical feeding assembly; 41. Chemical feed hopper; 42. Chemical distributor; 43. Feed chute; 5. Mixing assembly; 511. Mixing motor; 512. Reducer; 513. Drive shaft; 514. Drive wheel; 52. Support base; 53. Mixing barrel; 531. Roller ring; 6. Output assembly. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0025] The directional terms mentioned in this utility model, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom", are only for reference to the orientation of the accompanying drawings. The directional terms used are for the purpose of explaining and understanding this utility model, and are not intended to limit this utility model.
[0026] In the diagram, units with similar structures are represented by the same labels.
[0027] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4In this embodiment, the leaching residue stabilization pretreatment system 1 includes a filter cake crushing assembly 2, a material transfer assembly 3, a reagent feeding assembly 4, a stirring assembly 5, and an output assembly 6. The filter cake crushing assembly 2 includes a feeding unit 21, a crushing drive unit 22, a filter cake crusher 23, and a discharge control unit 24. The feeding unit 21 is used to transport the filter cake to the filter cake crusher 23. The filter cake crusher 23 includes a support 231, a crushing barrel 232, a connecting shaft 233, and multiple sets of cutters 234. The crushing barrel 232 is fixed to the support 231, and a cavity 2321 is provided inside the crushing barrel 232. A feed inlet is provided on one side of the crushing barrel 232 located near the feeding unit 21, and a discharge outlet is provided on the other side of the crushing barrel 232. The discharge control unit 24 is located at the discharge outlet. A connecting shaft 233 is disposed within the cavity 2321. Both ends of the connecting shaft 233 are connected to corresponding supports 231 via bearings. The crushing drive unit 22 is fixedly connected to one end of the connecting shaft 233 to drive the connecting shaft 233 to rotate. Multiple sets of cutters 234 are spaced apart along the circumference of the connecting shaft 233. One side of the cutter 234 in the extension direction is fixedly connected to the circumference of the connecting shaft 233, and the other side of the cutter 234 in the length direction is spaced apart from the inner wall of the cavity 2321. One end of the transfer assembly 3 is disposed on one side of the discharge control unit 24. The agent feeding assembly 4 is used to provide the agent. The discharge end of the agent feeding assembly 4 and the output end of the transfer assembly 3 are both connected to the inlet of the stirring assembly 5. The stirring assembly 5 is used to mix the crushed material with the agent. The output assembly 6 is disposed at the discharge port of the stirring assembly 5 and is used to transport the mixed material to a set position.
[0028] The leaching residue stabilization pretreatment system 1 uses a high-torque, low-speed crushing drive unit 22 to drive the cutter 234 for crushing operations, ensuring that the cutter 234 can easily crush hard filter cake blocks. The crushing barrel 232 has a large internal space, which can effectively prevent clogging and provide more ample crushing space, improving the crushing effect. The discharge control unit 24 can effectively control the size of the discharged particles, has higher compatibility, and improves the crushing accuracy and control effect, so as to improve the quality of subsequent processing such as mixing.
[0029] In this embodiment, four sets of cutting tools 234 are provided, with adjacent sets of cutting tools 234 arranged perpendicularly to facilitate cutting the filter cake and ensure the quality of the cutting. Specifically, the length direction of the cutting tools 234 is consistent with the length direction of the connecting shaft 233, increasing the cutting range and the cutting force.
[0030] For preferred options, please refer to [the provided text]. Figure 2 In order to improve the discharge efficiency of the filter cake crushing assembly 2, the discharge control unit 24 is set out to protrude from the outer wall of the crushing barrel 232 to prevent clogging and facilitate the discharge of small filter cake particles.
[0031] Preferably, the discharge control unit 24 is equipped with a replaceable sieve plate, which has multiple through holes for screening granular filter cake. The size of the discharged particles can be adjusted by replacing the sieve plate with one of different aperture sizes to meet the requirements of subsequent processes, thus providing greater compatibility.
[0032] Specifically, the crushing barrel 232 is designed as a cylindrical structure, and the screen plate is designed as an arc-shaped plate structure. The arc length of the screen plate is less than one-quarter of the circumference of the crushing barrel 232, which can increase the cutting path of the filter cake and thus improve the cutting quality. Both the cutter 234 and the crushing barrel 232 are made of high-chromium alloy, wear-resistant steel, or hard alloy weld overlay materials to cope with material wear and corrosion and extend their service life.
[0033] Please refer to Figure 2 , Figure 3 , Figure 4 The feeding unit 21 includes a filter cake feed hopper 211 and a filter cake distributor 212. The filter cake feed hopper 211 is located above the filter cake distributor 212. The filter cake is transferred to the filter cake feed hopper 211 by a loader. The control system controls the filter cake feed hopper 211 to lower the filter cake onto the filter cake distributor 212. The filter cake distributor 212 then conveys the lowered filter cake to the top of the crushing barrel 232.
[0034] A feed inlet is located at the top of the crushing barrel 232, through which the filter cake enters. The crushing drive unit 22 is driven by a high-torque, low-speed crushing motor to rotate the connecting shaft 233 and multiple sets of cutters 234. This allows the cutters 234 to cut the filter cake inside the chamber 2321, ensuring easy crushing of hard filter cake blocks. The discharge port of the crushing barrel 232 is located on the lower side away from the filter cake distributor 212. The cutters 234 rotate counterclockwise to cut the filter cake, and small filter cake particles fly out from the discharge port during rotation, passing through a screen to separate materials that meet the particle size requirements.
[0035] In this embodiment, please refer to Figure 1 The material transfer assembly 3 includes a discharge hood 31, a buffer belt 32, and a material transfer drive unit 33. The discharge hood 31 is positioned above the outer periphery of the discharge control unit 24, allowing the output granular filter cake to rest on the buffer belt 32 for easy collection of any ejected granular filter cake. This design is simple and cost-effective. The material transfer drive unit 33 drives the buffer belt 32 to transport the granular filter cake to the mixing assembly 5. The buffer belt 32 increases the conveying area, improves conveying efficiency, and prevents equipment blockage.
[0036] Specifically, the buffer belt 32 is angled upwards, and the height of one end of the buffer belt 32 below the crushing barrel 232 is lower than the height of the other end of the buffer belt 32. The angled arrangement of the buffer belt 32 can increase the area for receiving the ejected filter cake particles and prevent them from accumulating at the discharge port and causing blockage.
[0037] In this embodiment, please refer to Figure 1 , Figure 5 The mixing assembly 5 includes a mixing drive unit, a support base 52, a mixing tank 53, and a mixing unit. The mixing drive unit drives the mixing tank 53 to rotate. The mixing tank 53 is tilted downwards and rotatably mounted on the support base 52, with the inlet height of the mixing tank 53 higher than the outlet height. The material falls freely under gravity, forming a material curtain. During the fall, the material particles interpenetrate and penetrate each other, achieving micro-mixing and improving the mixing quality. A mixing chamber is provided inside the mixing tank 53, and a mixing unit is installed inside the mixing chamber. The mixing unit is used to lift the granular material and reagent from the lower end to the upper end of the mixing tank 53, allowing the material and reagent to fall freely and mix more evenly. The mixing unit can be configured as a spiral lifting plate or lifting blades, which can be welded to the inner wall of the mixing tank 53.
[0038] Preferably, the stirring drive unit includes a stirring motor 511, a reducer 512, a drive shaft 513, and multiple sets of drive rollers 514. The output shaft of the stirring motor 511 is connected to one end of the drive shaft 513 via the reducer 512. The drive shaft 513 is arranged along the same length as the stirring tank 53 and is spaced apart from the stirring tank 53. Multiple sets of drive rollers 514 are spaced apart along the length of the drive shaft 513. The circumferential sides of the multiple sets of drive rollers 514 are in close contact with the outer wall of the stirring tank 53 to drive the stirring tank 53 to rotate, resulting in stable driving and low cost.
[0039] Preferably, the inclination angle between the centerline of the mixing tank 53 and the horizontal plane is set to 2°-5°, which can improve the mixing efficiency and quality. The mixing tank 53 can be configured as a cylindrical or conical drum structure.
[0040] For details, please refer to Figure 5 Multiple sets of support seats 52 are provided, and the support seats 52 are spaced apart along the length of the mixing tank 53. The support seats 52 are configured as support roller structures, with two support rollers spaced apart on both sides of the mixing tank 53 to support and fix the mixing tank 53, reduce frictional resistance, and improve the rotation efficiency of the mixing tank 53. On both sides of the outer periphery of the mixing tank 53, there is an annular concave rolling ring 531, and each rolling ring 531 is provided with a set of driving rubber wheels 514, so that the mixing tank 53 can rotate stably.
[0041] The stirring motor 511 drives the transmission shaft 513 to rotate via the reducer 512. The transmission shaft 513 drives multiple sets of drive rollers 514 to rotate. The rotation of the drive rollers 514 generates friction in the mixing drum 53, causing the drive rollers 514 to rotate synchronously. During the rotation of the mixing drum 53, the stirring unit inside rotates synchronously, lifting the materials and reagents from the bottom to the top of the mixing drum 53. Then, the materials and reagents fall freely under gravity, forming a material curtain. The material particles and reagents interpenetrate and penetrate each other during the fall, achieving micro-mixing and a more uniform mixture.
[0042] Among them, atomizing nozzles can be arranged along the axial direction of the mixing tank 53 to uniformly spray liquid additives into the falling material curtain through the atomizing nozzles, thereby achieving instantaneous wetting.
[0043] In this embodiment, please refer to Figure 1 The agent feeding assembly 4 includes an agent feed hopper 41, an agent distributor 42, and a feed chute 43. The agent feed hopper 41 is located above the agent distributor 42. The agent distributor 42 is equipped with a feed chute 43 at one end near the filter cake crushing assembly 2. The feed chute 43 is inclined between the discharge port of the agent distributor 42 and the transfer assembly 3. The feed chute 43 can improve the conveying efficiency and prevent the agent from sticking or clogging the discharge port of the agent distributor 42.
[0044] The leaching residue is fed into the filter cake feed hopper 211 by a loader and then fed into the filter cake crusher 23 by the filter cake spreader 212. The filter cake crusher 23 breaks large pieces of filter cake into smaller particles, thereby increasing the specific surface area of the filter cake and facilitating thorough and uniform mixing with the reagents in the subsequent process. To accommodate the discharge characteristics of the crusher, a discharge hood 31 is installed at the discharge port of the filter cake crusher 23 for easy material collection and transfer.
[0045] The material crushed by the filter cake crusher 23 is fed into the mixer via the buffer belt 32. Simultaneously, reagents or additives enter the mixer through the reagent feed hopper 41, reagent distributor 42, and feed chute 43, and are uniformly mixed with the crushed material. The final material, after thorough mixing and reaction, is transported out through the output component 6 and directly loaded onto trucks for transport to a designated stockpile for reaction and curing.
[0046] The filter cake crusher 23 can break large pieces into fine particles, drastically increasing the total surface area of the material. This is crucial for subsequent reagent addition, ensuring sufficient and uniform contact between the reagent and the material particles, avoiding uneven mixing, and thus greatly improving the efficiency and effectiveness of the reaction. The flowability of the crushed granular material is far superior to that of large filter cake pieces, facilitating its transport by the buffer belt 32 and allowing for smoother mixing in the mixing tank 53, preventing equipment blockage. Moreover, by crushing the entire batch of filter cake, the filter cake crusher 23 can make the particle size and moisture content of the material more uniform, ensuring the stability of the final product quality. This filter cake crusher 23 has a good sealing structure to prevent dust escape and leakage of moisture or vapor from the material, protecting the working environment and the equipment itself.
[0047] The mixing tank 53 is a continuous equipment that achieves efficient material mixing through drum rotation, specifically designed for processing granular or powdery materials. It features a simple structure, high mixing uniformity, and is suitable for solid-solid or solid-liquid mixing processes in industries such as building materials, chemicals, and metallurgy. When the mixing tank 53 rotates, the internal mixing unit repeatedly lifts and scatters the material, forming a composite mixing mechanism of "gravity diffusion + convection motion," ensuring that the material achieves a highly uniform distribution in a short time. The mixing tank 53 can handle dry materials, wet materials, or materials with added liquid additives (such as cement mixing water or chemical solutions), and the mixing intensity can be controlled by adjusting the rotation speed. The mixing tank 53 can adjust the drum rotation speed, tilt angle, and additive flow rate via PLC to adapt to different formulation processes and improve compatibility. The material moves gradually from the inlet to the outlet, achieving continuous "feed-mix-discharge" operation and improving production line efficiency.
[0048] In this embodiment, the present invention relates to a leaching residue stabilization pretreatment system, which includes a filter cake crushing assembly, a material transfer assembly, a reagent feeding assembly, a stirring assembly, and an output assembly. The filter cake crushing assembly includes a feeding unit, a crushing drive unit, a filter cake crusher, and a discharge control unit. The feeding unit is used to transport the filter cake to the filter cake crusher. The filter cake crusher includes a support, a crushing barrel, a connecting shaft, and multiple sets of cutters. The crushing barrel is fixed to the support, and a cavity is provided inside the crushing barrel. An inlet is provided on one side of the crushing barrel located at the feeding unit, and an outlet is provided on the other side of the crushing barrel. The discharge control unit is located at the outlet. The connecting shaft is disposed within the cavity, and both ends of the connecting shaft are connected to corresponding supports via bearings. The crushing drive unit is fixedly connected to one end of the connecting shaft to drive the connecting shaft to rotate. Multiple sets of cutters are spaced apart along the circumference of the connecting shaft. One side of the cutter in the extension direction is fixedly connected to the circumference of the connecting shaft, and the other side of the cutter in the length direction is spaced apart from the inner wall of the cavity. One end of the transfer assembly is located on one side of the discharge control unit. The reagent feeding assembly provides the reagents. Both the discharge end of the reagent feeding assembly and the output end of the transfer assembly are connected to the inlet of the mixing assembly, which mixes the crushed material with the reagents. The output assembly is located at the discharge port of the mixing assembly and conveys the mixed material to a designated location. This leaching residue stabilization pretreatment system uses a high-torque, low-speed crushing drive unit to drive the cutters for crushing, ensuring that the cutters can easily crush hard filter cake blocks. The large internal space of the crushing tank effectively prevents clogging, provides ample crushing space, and improves the crushing effect. The discharge control unit effectively controls the size of the discharged particles, offering higher compatibility and improving crushing precision and control effectiveness, resulting in better processing quality for subsequent mixing and other processes.
[0049] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.
Claims
1. A leaching residue stabilization pretreatment system, characterized in that, include: A filter cake crushing assembly includes a feeding unit, a crushing drive unit, a filter cake crusher, and a discharge control unit. The feeding unit conveys the filter cake to the filter cake crusher, which includes a support, a crushing barrel, a connecting shaft, and multiple sets of cutters. The crushing barrel is fixed to the support and has a cavity. The crushing barrel has an inlet on one side of the feeding unit and an outlet on the other side, with the discharge control unit located at the outlet. The connecting shaft is located within the cavity, with both ends connected to the corresponding supports via bearings. The crushing drive unit is fixedly connected to one end of the connecting shaft to drive its rotation. Multiple sets of cutters are spaced apart along the circumference of the connecting shaft. One side of each cutter in its extension direction is fixedly connected to the circumference of the connecting shaft, and the other side of each cutter in its length direction is spaced apart from the inner wall of the cavity. Material transfer assembly; one end of the material transfer assembly is disposed on one side of the discharge control unit; Pharmaceutical feeding assembly for supplying pharmaceuticals; A mixing assembly, wherein the discharge end of the pharmaceutical feeding assembly and the output end of the transfer assembly are both connected to the inlet of the mixing assembly, the mixing assembly being used to mix the crushed material with the pharmaceutical agent; and, An output component is provided at the outlet of the mixing component and is used to transport the mixed material to a set position.
2. The leaching residue stabilization pretreatment system according to claim 1, characterized in that, The cutting tools are arranged in four groups, with adjacent groups of cutting tools arranged perpendicularly to each other.
3. The leaching residue stabilization pretreatment system according to claim 1, characterized in that, The discharge control unit is positioned to protrude from the outer wall of the crushing barrel.
4. The leaching residue stabilization pretreatment system according to claim 1, characterized in that, The discharge control unit is configured with a replaceable sieve plate, which has multiple through holes for screening granular filter cake.
5. The leaching residue stabilization pretreatment system according to claim 4, characterized in that, The crushing barrel is configured as a cylindrical structure, and the screen plate is configured as an arc-shaped plate structure, wherein the arc length of the screen plate is less than one-quarter of the circumference of the crushing barrel.
6. The leaching residue stabilization pretreatment system according to claim 1, characterized in that, The material transfer assembly includes a discharge hood, a buffer belt, and a material transfer drive unit; the discharge hood is positioned above the outer periphery of the discharge control unit so that the output granular filter cake is placed on the buffer belt; the material transfer drive unit is used to drive the buffer belt to transport the granular filter cake on it into the stirring assembly.
7. The leaching residue stabilization pretreatment system according to claim 1, characterized in that, The stirring assembly includes a stirring drive unit, a support base, a stirring tank, and a stirring unit; the stirring drive unit is used to drive the stirring tank to rotate; the stirring tank is inclined downward and rotatably mounted on the support base, and the height of the inlet of the stirring tank is higher than the height of the outlet of the stirring tank; a mixing chamber is provided inside the stirring tank, and the stirring unit is installed in the mixing chamber. The stirring unit is used to stir the granular material and the agent and lift them from the lower end to the upper end of the stirring tank so that the material and the agent fall freely.
8. The leaching residue stabilization pretreatment system according to claim 7, characterized in that, The stirring drive unit includes a stirring motor, a reducer, a drive shaft, and multiple sets of drive rollers. The output shaft of the stirring motor is connected to one end of the drive shaft through the reducer. The length direction of the drive shaft is the same as the length direction of the stirring tank and is spaced apart from the stirring tank. Multiple sets of drive rollers are spaced apart along the length direction of the drive shaft. The circumferential side of the multiple sets of drive rollers is in close contact with the outer wall of the stirring tank to drive the stirring tank to rotate.
9. The leaching residue stabilization pretreatment system according to claim 7, characterized in that, The inclination angle between the centerline of the mixing tank and the horizontal plane is set to 2°-5°.
10. The leaching residue stabilization pretreatment system according to claim 1, characterized in that, The agent feeding assembly includes an agent feed hopper, an agent distributor, and a feed chute; the agent feed hopper is located above the agent distributor, and the feed chute is provided at one end of the agent distributor near the filter cake crushing assembly. The feed chute is inclinedly arranged between the discharge port of the agent distributor and the transfer assembly.