Industrial solid waste mixing, grinding and stirring integrated device

Abstract

The application discloses an industrial solid waste mixing, grinding and stirring integrated device and belongs to the technical field of industrial solid waste treatment. The industrial solid waste mixing, grinding and stirring integrated device comprises a box body provided with a feeding port at the top, and further comprises: a crushed material part arranged in the box body, wherein the crushed material part comprises a fine crushed material assembly and a coarse crushed material assembly; a screening plate arranged obliquely in the box body and arranged on the upside of the fine crushed material assembly; a grinding assembly and a mixing assembly fixedly arranged in the box body and arranged on the downside of the grinding assembly; the integrated design of screening, coarse / fine separation, crushing, grinding, filtering and mixing improves the treatment efficiency, mixing uniformity and system reliability, reduces energy consumption and land occupation, and solves the problems of coarse and fine material interference crushing, uneven mixing and process dispersion in solid waste treatment, realizes automatic material separation, anti-blocking intermittent discharging, synchronous grinding and mixing and forced circulation of bottom material, and improves the treatment efficiency, mixing uniformity and system reliability.

Description

Technical Field

[0001] This invention relates to the field of industrial solid waste treatment technology, and in particular to an integrated device for mixing and grinding industrial solid waste. Background Technology

[0002] Industrial solid wastes (such as smelting slag, fly ash, desulfurization gypsum, and sludge) have complex compositions and diverse properties, making homogenization pretreatment crucial for their resource utilization. Currently, conventional processes typically employ a discrete process involving multiple devices connected in series for crushing, grinding, and mixing. This approach suffers from high energy consumption during material handling, large footprint, dust pollution risks, and efficiency losses due to multiple stages of interconnection.

[0003] While some integrated equipment attempts to combine functions, they generally suffer from the following technical bottlenecks: First, solid waste has a wide particle size distribution. When coarse and fine materials are mixed, the fine material tends to "padded" between the coarse material and the crushing components, leading to a sharp drop in coarse crushing efficiency and a surge in energy consumption. Second, when crushed materials directly enter the mixing stage, differences in density and particle size easily create stratification and sedimentation dead zones within the mixing drum. In particular, high-density, large-particle materials settle at the bottom, making it difficult for conventional mixing to achieve rapid homogenization in three-dimensional space, resulting in poor mixing uniformity. Furthermore, the equipment generally relies on multiple independent motors and complex electrical control systems to achieve multi-component coordination, leading to high costs, numerous potential failure points, and a lack of organic linkage between mechanical actions, resulting in insufficient overall energy efficiency and reliability. Summary of the Invention

[0004] The purpose of this invention is to address the problems in existing technologies regarding the pretreatment of industrial solid waste for resource recovery. These problems include low coarse crushing efficiency and high energy consumption due to the mixing and crushing of coarse and fine materials; discrete crushing, grinding, and mixing processes, resulting in large floor space requirements, high costs due to multiple motor drives, and poor coordination; and poor mixing uniformity due to stratification and sedimentation caused by differences in density and particle size. The invention proposes an integrated industrial solid waste mixing and grinding device. This device optimizes the overall modular design of solid waste crushing, grinding, mixing, and feeding. It integrates a fully automated coarse and fine material grading and crushing structure with a separator and screening plate, a fully synchronous linkage system with a single drive rod, a bottom forced circulation mixing structure with a stirring tube and a reverse spiral conveyor plate, and an intermittent anti-clogging feeding structure with main drive linkage. Through the organic combination of pure mechanical transmission and structural layout, it achieves a continuous, integrated operation of industrial solid waste feeding, grading and crushing, fine grinding, and homogenization mixing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An integrated grinding and mixing device for industrial solid waste includes a housing with a feed inlet at the top, and further includes:

[0007] The crushing section is located inside the box and includes a fine crushing assembly for crushing fine materials and a coarse crushing assembly for crushing coarse materials.

[0008] A screening plate is inclinedly disposed inside the box and positioned on the upper side of the fine crushing assembly;

[0009] A grinding assembly is disposed inside the housing and positioned below the fine crushing assembly;

[0010] And a mixing assembly, which is fixed inside the housing and positioned below the grinding assembly;

[0011] The housing is also equipped with a drive assembly for simultaneously driving the crushing section, grinding assembly, and mixing assembly.

[0012] Preferably, a partition frame is fixed inside the box, the fine crushing component and the coarse crushing component are respectively arranged on both sides of the partition frame, and the fine crushing component is located below the coarse crushing component. The partition frame has a first discharge port at the lower end of the screening plate, the box body has an inclined guide surface on the bottom inner wall below the coarse crushing component, and the partition frame has a second discharge port at the lower end of the inclined guide surface.

[0013] The first discharge port is located above the coarse crushing assembly, and the second discharge port is located between the coarse crushing assembly and the fine crushing assembly.

[0014] Preferably, the fine crushing assembly and the coarse crushing assembly have the same structure, both including two rotating rods rotatably disposed in the housing and crushing rollers respectively disposed on the two rotating rods, and the two rotating rods rotate in opposite directions;

[0015] The drive assembly includes a drive motor fixed to the housing, a drive rod rotatably connected to the partition frame and connected to the output end of the drive motor, a worm gear mounted on the drive rod, and a worm wheel mounted on the rotating rod and meshing with the worm gear.

[0016] Preferably, the grinding assembly includes a grinding disc rotatably disposed within the housing, an arc-shaped filter plate disposed at the center of the grinding disc, and a grinding roller rotatably disposed on a partition frame and moving against the arc-shaped filter plate.

[0017] The drive assembly also includes a main bevel gear fixed on the drive rod, a secondary bevel gear disposed on the grinding roller shaft, a drive gear disposed on the drive rod, and a driven gear disposed on the grinding disc.

[0018] Preferably, the mixing assembly includes a mixing cylinder fixed inside the box, a working shell fixed on the partition frame, a stirring tube rotatably connected inside the working shell, and a plurality of stirring rods equidistantly arranged on the stirring tube. The bottom of the mixing cylinder is provided with a discharge port for material discharge.

[0019] The drive assembly also includes a timing wheel disposed on the drive rod and the stirring tube, and a timing belt disposed between the two timing wheels, both of which are located inside the working housing.

[0020] Preferably, the working shell has a flow guide surface on the top outer wall of the mixing cylinder, and the flow guide surface is an arc surface or an inclined surface.

[0021] Preferably, a guide seat is provided on the inner wall of the box between the fine crushing component and the grinding disc. The guide seat includes a square hopper and a conical hopper that are interconnected. The bottom of the conical hopper is rotatably connected to the top of the grinding disc.

[0022] Preferably, the bottom of the arc-shaped filter plate is connected to a rotating shaft via a support, and a spiral conveying plate placed inside the stirring tube is provided on the rotating shaft. A discharge pipe is provided at the top of the stirring tube, and the bottom end of the spiral conveying plate is lower than the bottom end of the stirring tube.

[0023] Preferably, a filter plate is provided on the inner wall of the box above the second discharge port, and a baffle is slidably connected to the lower side of the filter plate. The baffle is provided with a concave hole that matches the filter hole of the filter plate.

[0024] An eccentric shaft is provided on the drive rod, and a cam plate is rotatably mounted on the eccentric shaft. The end of the cam plate away from the eccentric shaft is movably connected to a baffle through a connecting plate.

[0025] Preferably, the separator is provided with a protective shell at the first and second discharge ports, and the drive rod is rotatably disposed inside the protective shell.

[0026] Compared with the prior art, the present invention provides an integrated grinding and mixing device for industrial solid waste, which has the following beneficial effects:

[0027] 1. In this invention, an automatic sorting and crushing path based on particle size is constructed through the linkage layout of a screening plate, coarse / fine two-stage crushing components, and an inclined guide surface. Coarse material enters the coarse crushing component through an independent channel, avoiding the buffering effect of fine material and improving coarse crushing efficiency. The crushed coarse material is collected by the inclined guide surface and enters the fine crushing component together with the undersize fine material for fine processing, ensuring the uniformity of particle size of the material entering the mill from the source. Subsequently, the material enters the grinding component composed of a grinding disc, an arc-shaped filter plate, and a grinding roller. Driven by the main bevel gear and the driven gear, the grinding disc and the grinding roller form a relative grinding motion. Combined with the dynamic screening of the arc-shaped filter plate, the crushing and grinding are closely connected and the particle size is controlled, laying the foundation for subsequent efficient homogeneous mixing. This realizes the automatic grading, crushing, and co-grinding of solid waste, significantly improving processing efficiency and quality.

[0028] 2. In this invention, the cooperation of the stirring tube, stirring rod, and built-in spiral conveying plate achieves efficient three-dimensional mixing. The stirring rod performs radial shear mixing over a wide range inside the mixing cylinder, while the spiral conveying plate, located inside the stirring tube and rotating in the opposite direction, generates axial lifting force, forcibly conveying the high-density, large-particle material that has settled at the bottom of the cylinder upwards. The material is then thrown back to the top of the mixing zone through the top discharge pipe. This forced circulation of bottom lifting and top throwing, combined with radial stirring, forms strong convection, effectively breaking down stratification and sedimentation caused by differences in density and particle size. This fundamentally solves the problem of uneven mixing in traditional mixing equipment and ensures the high homogeneity of the final product.

[0029] 3. In this invention, all moving parts are driven by a single drive motor using a drive rod, resulting in a highly integrated structure. The drive rod, in conjunction with the transmission components, precisely distributes power to the crushing, grinding, mixing, and auxiliary feeding mechanisms. This ensures a high degree of synchronization and coordination of complex actions such as coarse / fine crushing, grinding roller rotation, stirring tube rotation, reverse lifting of the spiral conveyor plate, and reciprocating motion of the baffle. Furthermore, the pure mechanical transmission avoids complex electrical control systems, reducing costs and failure rates. The various actions are naturally linked through mechanical constraints, ensuring stable and reliable operation and achieving a highly efficient multi-functional operation mode.

[0030] 4. In this invention, a reciprocating baffle driven by a drive rod through an eccentric shaft and a cam plate at the second discharge port enables intermittent discharge of the screened material, avoiding the instantaneous accumulation of coarsely crushed material and undersize fine material, and ensuring smooth feeding of the fine crushing component; the guide seat adopts a sealed transition structure of square bucket and conical bucket, effectively guiding dust and fragments, and preventing material splashing and dust dispersion during crushing and grinding; in addition, the guide surface design of the working shell at the top of the mixing cylinder can guide the scattered material to fall back smoothly, jointly ensuring the smooth flow of material inside the device and optimizing the working environment. Attached Figure Description

[0031] Figure 1This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0033] Figure 3 for Figure 2 Enlarged structural diagram of section A in the middle;

[0034] Figure 4 for Figure 2 Enlarged structural diagram of section B in the middle;

[0035] Figure 5 for Figure 2 Enlarged structural diagram of section C;

[0036] Figure 6 This is a schematic diagram of the coarse crushing assembly of the present invention;

[0037] Figure 7 This is a schematic diagram of the material guide seat and grinding disc of the present invention;

[0038] Figure 8 This is a schematic diagram of the mixing cylinder of the present invention;

[0039] Figure 9 This is a cross-sectional structural diagram of the stirring tube of the present invention;

[0040] Figure 10 This is a schematic diagram of the structure of the working shell of the present invention, where the top is an arc surface;

[0041] Figure 11 This is a schematic diagram of the structure of the working shell of the present invention, which has a sloping top.

[0042] In the diagram: 1. Box body; 101. Feed inlet; 102. Inclined guide surface; 2. Screening plate; 3. Divider frame; 301. First discharge port; 302. Second discharge port; 4. Rotating rod; 401. Crushing roller; 402. Worm gear; 5. Grinding disc; 501. Arc-shaped filter plate; 502. Grinding roller; 5021. Secondary bevel gear; 503. Driven gear; 6. Mixing cylinder; 7. Working shell; 8. Stirring tube; 801. Stirring rod; 802. Feed pipe; 9. Drive rod; 901. Worm gear; 902. Main bevel gear; 903. Drive gear; 904. Synchronous pulley; 10. Drive motor; 11. Guide seat; 111. Square hopper; 112. Conical hopper; 12. Rotating shaft; 121. Spiral conveyor plate; 13. Filter plate; 131. Baffle; 14. Eccentric shaft; 141. Cam plate; 15. Protective shell. Detailed Implementation

[0043] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0044] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0045] like Figure 1 and Figure 2 As shown, this embodiment proposes an integrated grinding and mixing device for industrial solid waste, including a box 1 with a feed inlet 101 at the top, and further including: a crushing section, a screening plate 2, a grinding component, and a mixing component; the crushing section is located inside the box 1, and includes a fine crushing component for crushing fine materials and a coarse crushing component for crushing coarse materials; the screening plate 2 is inclinedly located inside the box 1, and is positioned above the fine crushing component, realizing material grading by particle size, and a vibrating motor can be installed on it for rapid screening; the grinding component is located inside the box 1 and is positioned below the fine crushing component; the mixing component is fixed inside the box 1 and is positioned below the grinding component; wherein, the box 1 is also provided with a drive component for driving the crushing section, grinding component, and mixing component to operate simultaneously; the screening plate 2 can be equipped with a vibrating motor as needed and is installed inside the box 1 through an elastic support to achieve screen self-cleaning and anti-clogging;

[0046] Specifically, the material enters the housing 1 through the feed inlet 101 and falls onto the inclined screening plate 2. Under the action of gravity and vibration, coarse and fine materials are separated. The undersized fine material directly enters the fine crushing component for crushing, while the oversized coarse material is guided along the inclined surface of the screening plate 2 to the coarse crushing component for crushing. This step avoids mutual interference between coarse and fine materials, improving crushing efficiency and targeting. After crushing, the material, regardless of whether it comes from the coarse or fine crushing component, will collect and fall to the grinding component, where it will be further finely ground to achieve the required particle size. The ground material finally falls into the mixing component, where the components are uniformly mixed under the action of stirring, completing the homogenization process and providing higher quality materials for subsequent resource utilization. Superior and more stable pre-treated products; throughout the process, the drive component provides power to the crushing, grinding, and mixing components, ensuring that they operate simultaneously and in a coordinated manner according to the preset matching relationship, simplifying the equipment power system and reducing the complexity and cost of multi-motor control; by integrating the traditionally separate crushing, grinding, and mixing processes and equipment into a single housing 1, and connecting them naturally through the gravity fall of materials, the process flow is greatly shortened, reducing material transfer links, equipment footprint, and dust emission points, and improving operational continuity and space efficiency; a dust removal interface can be installed on the top of the housing 1, which can be connected to an external bag filter to centrally collect and treat the dust generated in the crushing and grinding process.

[0047] like Figure 2 and Figure 5 As shown, in a preferred embodiment, based on the above method, a partition frame 3 is further fixed inside the box 1, and the fine crushing component and the coarse crushing component are respectively arranged on both sides of the partition frame 3, with the fine crushing component located below the coarse crushing component. The partition frame 3 has a first discharge port 301 at the lower end of the screening plate 2, and the box 1 has an inclined guide surface 102 on the bottom inner wall below the coarse crushing component. The partition frame 3 has a second discharge port 302 at the lower end of the inclined guide surface 102.

[0048] The first discharge port 301 is located on the upper side of the coarse crushing assembly, and the second discharge port 302 is located between the coarse crushing assembly and the fine crushing assembly.

[0049] Specifically, after the material is screened on the screening plate 2, the fine material falls directly into the space of the fine crushing component located directly below it, while the coarse material slides along the inclined surface of the screening plate 2 to its lower end and enters the other side of the box 1, i.e., the area where the coarse crushing component is located, through the first discharge port 301 on the separator 3. After the coarse material is crushed at the coarse crushing component, it falls onto the inclined guide surface 102 at the bottom of the box 1. The crushed material, which is now finer, slides down the inclined guide surface 102 under the action of gravity and collects at its lower end, avoiding disorderly spillage, splashing, or backflow of material in the box. The material collected at the lower end of the inclined guide surface 102 re-enters the fine crushing component through the second discharge port 302 on the separator 3. The space on the side where the material components are located is ready for the next stage of processing. By setting up the separator 3 and separating the coarse and fine crushing components on both sides, a clear material processing path is constructed, ensuring that the uncrushed coarse material and the screened fine material are completely isolated in space. This physically prevents the two from mixing and interfering with each other in the initial crushing stage, providing a structural basis for realizing the process concept of first grading and then targeted processing. Moreover, the existence of the separator 3 makes the coarse and fine crushing working areas relatively independent, which helps to localize the scope of impact when performing equipment maintenance, repair or replacement of parts, making operation convenient. At the same time, the clear functional zoning also makes it easy to observe the working condition of each area and promptly detect problems such as blockages and abnormal wear.

[0050] like Figure 2 , Figure 3 and Figure 6 As shown, in a preferred embodiment, based on the above method, the fine crushing assembly and the coarse crushing assembly have the same structure, both including two rotating rods 4 rotatably disposed inside the housing 1 and crushing rollers 401 respectively disposed on the two rotating rods 4, the two rotating rods 4 rotating in opposite directions; the side wall of the housing 1 may be provided with a quick-opening maintenance door, facing the installation position of the crushing rollers 401 and the grinding assembly;

[0051] The drive assembly includes a drive motor 10 fixed on the housing 1, a drive rod 9 rotatably connected to the partition frame 3 and connected to the output end of the drive motor 10, a worm gear 901 disposed on the drive rod 9, and a worm wheel 402 disposed on the rotating rod 4 and meshing with the worm gear 901; the partition frame 3 can provide protection at the meshing point of the two.

[0052] Specifically, when the drive motor 10 starts, its output shaft drives the drive rod 9 to rotate. The worm 901 fixed on the drive rod 9 rotates accordingly. The worm 901 meshes with the worm wheels 402 mounted on each rotating rod 4, transmitting power and motion to the worm wheels 402. Due to the meshing characteristics between the worm wheels 402 and the worm 901, when the same worm 901 drives the worm wheels 402 located on both sides, the two worm wheels 402 can naturally rotate in opposite directions. This not only greatly simplifies the power system and transmission structure, reduces manufacturing costs and maintenance complexity, but more importantly, ensures the rotation of the two crushing rollers 401 within the same assembly. The movement between different components is strictly synchronized and coordinated, avoiding problems such as material blockage or uneven crushing effect caused by speed differences and mismatch of actions that may occur in multi-motor drives. For each crushing component, whether it is fine crushing or coarse crushing, the worm 901 drives its two corresponding worm wheels 402, so that the two rotating rods 4 connected to the two worm wheels 402 and the two crushing rollers 401 installed on them rotate in opposite directions. The material entering the coarse crushing component or fine crushing component area falls between the two opposing crushing rollers 401 and is crushed under the action of compression, shearing and tearing.

[0053] like Figure 2 , Figure 4 and Figure 7 As shown, in a preferred embodiment, based on the above method, the grinding assembly further includes a grinding disc 5 rotatably disposed within the housing 1, an arc-shaped filter plate 501 disposed at the center of the grinding disc 5, and a grinding roller 502 rotatably disposed on the partition frame 3 and movingly abutting against the arc-shaped filter plate 501. The filter plate has a tapered enlarged hole design. The grinding gap between the grinding roller 502 and the arc-shaped filter plate 501 can be adjusted by a shim to adapt to different grinding requirements and cover the resource pretreatment needs of mainstream industrial solid waste on the market.

[0054] The drive assembly also includes a main bevel gear 902 fixed on the drive rod 9, a secondary bevel gear 5021 set on the shaft of the grinding roller 502, a drive gear 903 set on the drive rod 9, and a driven gear 503 set on the grinding disc 5; by optimizing the number of teeth of the drive gear 903 and the driven gear 503, and the main bevel gear 902 and the secondary bevel gear 5021, a strong shearing force is ensured in the grinding area;

[0055] Specifically, the drive rod 9 rotates under the drive of the drive motor 10, and the main bevel gear 902 and the drive gear 903 on it rotate accordingly. The rotation of the main bevel gear 902, through meshing with the secondary bevel gear 5021, transmits power to the shaft of the grinding roller 502, thereby driving the grinding roller 502 to rotate around its own axis. The rotation of the drive gear 903, through meshing with the driven gear 503, transmits power to the grinding disc 5, thereby driving the grinding disc 5 to rotate around its central axis. The bevel gear pair and the spur gear pair ensure that there is a definite and stable speed ratio and relative motion relationship between the grinding roller 502 and the grinding disc 5. The material exhibits high coordination and a stable and controllable grinding process. The material falling onto the grinding disc 5 is located between the rotating grinding disc 5 and the rotating grinding roller 502. In the area in contact with the arc-shaped filter plate 501, it is ground by the crushing and shearing action generated by the relative motion of the two. The material that meets the fineness requirements falls through the holes of the arc-shaped filter plate 501, while the material that does not meet the requirements continues to remain on the grinding disc 5 and is repeatedly ground. This significantly improves the grinding efficiency and particle size control accuracy, and avoids the problems of over-grinding or insufficient grinding. The crushing roller 401, the grinding roller 502, and the arc-shaped filter plate 501 are all made of high-chromium wear-resistant alloy cast iron.

[0056] like Figure 2 , Figure 8 , Figure 9 and Figure 10 As shown, in a preferred embodiment, based on the above method, the mixing assembly further includes a mixing cylinder 6 fixed in the housing 1, a working shell 7 fixed in the partition frame 3, a stirring tube 8 rotatably connected in the working shell 7, and a plurality of stirring rods 801 equidistantly arranged on the stirring tube 8. The bottom of the mixing cylinder 6 is provided with a discharge port for material discharge. The inner wall of the mixing cylinder 6 and the surface of the stirring rods 801 are coated with a non-stick Teflon coating.

[0057] The drive assembly also includes a timing pulley 904 mounted on the drive rod 9 and the stirring tube 8, and a timing belt mounted between the two timing pulleys 904. Both the timing pulleys 904 and the timing belt are housed inside the working housing 7. A timing belt tensioning pulley can be installed inside the working housing 7 as needed to adjust the timing belt tension in real time and prevent loosening and skipping of teeth after long-term use.

[0058] Specifically, the drive rod 9 rotates under the drive motor 10, and the synchronous pulley 904 mounted on it rotates accordingly. The rotational motion of the drive rod 9 is transmitted to the synchronous pulley 904 of the stirring tube 8 via a synchronous belt wound between the synchronous pulley 904 of the drive rod 9 and the synchronous pulley 904 of the stirring tube 8. The synchronous pulley 904 of the stirring tube 8 drives the stirring tube 8 to rotate within the working shell 7. Several stirring rods 801, fixedly connected to the stirring tube 8, rotate together with the stirring tube 8, stirring, shearing, and mixing the material entering the mixing drum 6. The rotating stirring rods 801 effectively break up material clumps, allowing materials of different compositions and particle sizes to mix rapidly within the drum. The materials in the mixing cylinder 6 undergo three-dimensional motion under the continuous rotation of the stirring rod 801, achieving thorough mixing. The uniformly mixed final material is discharged through the discharge port at the bottom of the mixing cylinder 6. The power of the stirring tube 8 comes directly from the same drive rod 9 that drives the crushing and grinding processes, ensuring that the start, stop, and speed of the mixing process are strictly synchronized with the crushing and grinding processes. The rhythm of the material entering the mixing cylinder 6 from the previous process is naturally matched with the stirring action, avoiding material accumulation, discontinuous processing, or energy waste caused by asynchronous power sources, and realizing the automated and coordinated operation of the entire processing flow.

[0059] like Figure 8 , Figure 10 and Figure 11 As shown, in a preferred embodiment, based on the above method, the working shell 7 is further provided with a guide surface on the top outer wall of the mixing cylinder 6, and the guide surface is an arc surface or an inclined surface.

[0060] Specifically, the material after the previous processing steps falls onto the top of the working shell 7 under the action of gravity. After the material comes into contact with the guide arc surface or inclined surface, it slides or rolls smoothly along the direction of the guide surface under the guidance of gravity and / or the curved surface, avoiding accumulation on the top of the working shell 7. The material guided by the guide surface eventually falls smoothly into the internal cavity of the mixing cylinder 6 to participate in the subsequent stirring and mixing process, which can more effectively mix all the materials, thereby improving the uniformity of mixing and the efficiency of the mixing process as a whole.

[0061] like Figure 2 and Figure 7 As shown, in a preferred embodiment, based on the above method, a guide seat 11 is further provided on the inner wall of the box 1 between the fine crushing component and the grinding disc 5. The guide seat 11 includes a square hopper 111 and a conical hopper 112 that are interconnected. The bottom of the conical hopper 112 is rotatably connected to the top of the grinding disc 5, and the outer side wall of the top of the square hopper 111 is sealed against the inner wall of the box 1.

[0062] Specifically, the material crushed by the fine crushing component falls under the influence of gravity and enters the opening of the square hopper 111 of the guide seat 11 located below and receiving the material. After entering the square hopper 111, the material continues to fall and enters the conical hopper 112 connected to it. Then, the material flows out from the bottom outlet of the conical hopper 112. Since this outlet is rotatably connected to the top of the grinding disc 5, the material can directly and controllably enter the working area of ​​the rotating grinding disc 5 below without splashing in all directions. This provides a smooth transition, effective collection and guidance channel for the loose and dispersed discharge of the previous process, avoiding the splashing, dust and adverse interference to the initial distribution of the material in the grinding disc 5 that may be caused by the material falling directly and disorderly from a higher position onto the grinding disc 5. This ensures that the material enters the grinding area in a relatively concentrated and controllable manner, which is conducive to the stability and efficiency of the grinding operation. After the material falls into the preset position of the grinding disc 5, that is, the central area, it immediately participates in the grinding operation of the grinding component.

[0063] like Figure 2 and Figure 9 As shown, in a preferred embodiment, based on the above method, the bottom of the arc-shaped filter plate 501 is further connected to a rotating shaft 12 via a support, and a spiral conveying plate 121 placed inside the stirring tube 8 is provided on the rotating shaft 12. A discharge pipe 802 is provided at the top of the stirring tube 8, and the bottom end of the spiral conveying plate 121 is lower than the bottom end of the stirring tube 8.

[0064] Specifically, within the mixing drum 6, after stirring and mixing, some materials with high density or large particle size may settle and accumulate at the bottom of the mixing drum 6, located around and below the bottom end of the stirring tube 8. Since the bottom end of the spiral conveyor plate 121 is lower than the bottom end of the stirring tube 8, the material settling at the bottom can enter the effective working range of the bottommost end of the spiral conveyor plate 121. When the rotating shaft 12 is driven to rotate, the spiral conveyor plate 121 fixed on it rotates accordingly. The rotating spiral conveyor plate 121 generates an axial force along its spiral surface on the bottom material it contacts, lifting the material from the bottom of the mixing drum 6 upwards and conveying it into the interior of the stirring tube 8. The material lifted to the top of the stirring tube 8 is thrown out or discharged from the discharge pipe 802 located at the top of the stirring tube 8. The material ejected from the discharge pipe 802 falls back into the upper or middle space of the mixing cylinder 6, mixing again with the existing material in the mixing cylinder 6, thus achieving forced circulation of the material from bottom to top. This breaks the spontaneous stratification trend caused by gravity, forming strong vertical convection in the mixing cylinder 6. Combined with radial stirring, it achieves vigorous mixing in the entire three-dimensional space, fundamentally eliminating mixing dead zones and material inhomogeneity, and ensuring the high homogeneity of the final product. The landing point of the material ejected from the discharge pipe 802, combined with the rotation of the stirring pipe 8, can evenly and disperse the material to different areas of the mixing cylinder 6, greatly optimizing the material distribution and flow pattern in the mixing cylinder 6, significantly accelerating the mixing process, and improving mixing efficiency.

[0065] like Figure 2 and Figure 5 As shown, in a preferred embodiment, based on the above method, a filter plate 13 is further provided on the inner wall of the box 1 above the second discharge port 302, and a baffle 131 is slidably connected to the lower side of the filter plate 13. The baffle 131 has a concave hole that matches the filter hole of the filter plate 13.

[0066] An eccentric shaft 14 is provided on the drive rod 9, and a cam plate 141 is rotatably provided on the eccentric shaft 14. The end of the cam plate 141 away from the eccentric shaft 14 is movably connected to the baffle 131 through a connecting plate.

[0067] Specifically, the drive rod 9 rotates continuously under the main drive, and the eccentric shaft 14 on it rotates accordingly, making circular motion. The circular motion of the eccentric shaft 14 drives one end of the cam plate 141, which is rotatably connected to it, to make circular motion. The cam plate 141 acts as a swing rod, and the motion trajectory of the end away from the eccentric shaft 14 is converted into an approximately linear reciprocating oscillation. Under the pushing and pulling action of the connecting plate, the baffle 131 slides horizontally and periodically along its mounting track, such as a groove, below the filter plate 13. When the baffle 131 slides to a specific position, so that the concave hole on it is completely or partially aligned with the filter hole on the filter plate 13 in the vertical direction, the falling material can fall through the overlapping hole. Through the second discharge port 302; when the baffle 131 slides to another position, so that the concave hole on it is misaligned with the filter hole of the filter plate 13, the solid part of the baffle 131 completely or partially blocks the filter hole of the filter plate 13, and the material is blocked above the filter plate 13 and cannot fall down; the material discharge channel of the filter plate 13 is opened and closed periodically, realizing intermittent control of the material flow falling from the screening plate 2, avoiding the material falling from the screening plate 2 from merging with the material flow after coarse crushing, which would cause a large amount of material to rush into the area where the fine crushing component is located, and preventing the fine crushing component from overload, blockage or efficiency reduction due to excessive instantaneous feeding, thus ensuring the smooth and efficient operation of subsequent processes.

[0068] like Figure 2 and Figure 5 As shown, in a preferred embodiment, based on the above method, the separator 3 is further provided with a protective shell 15 at the first discharge port 301 and the second discharge port 302, and the drive rod 9 is rotatably disposed inside the protective shell 15; the drive rod 9 is rotatably mounted in the separator 3 and the protective shell 15 through multiple sets of seated bearings to ensure transmission stability.

[0069] Specifically, under power drive, the drive rod 9 rotates continuously within the internal space of the protective shell 15, performing its core transmission function of driving various working components. The material follows the process path, passing through the first discharge port 301 and the second discharge port 302, which are surrounded by the protective shell 15. The presence of the protective shell 15 does not affect the normal passage of the material through these channels. Throughout the process of material falling and equipment operation, the protective shell 15 acts as a physical barrier, separating its internal space, including the rotating drive rod 9 and the transmission components that may be installed on it, from other main working cavities within the housing 1. This prevents foreign objects from getting stuck in the meshing points of the transmission components or from adhering to or accumulating on critical parts such as bearings and journals, thereby avoiding transmission jamming, abnormal wear, overheating, or even failure caused by these factors. This greatly improves the long-term reliability and stability of the core drive system and extends the service life of the transmission components.

[0070] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0071] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An integrated grinding and mixing device for industrial solid waste, comprising a housing (1) with a feed inlet (101) at the top, characterized in that, Also includes: The crushing section is located inside the housing (1). The crushing section includes a fine crushing assembly for crushing fine materials and a coarse crushing assembly for crushing coarse materials. Screening plate (2), the screening plate (2) is inclinedly arranged in the box (1), the screening plate (2) is placed on the upper side of the fine crushing assembly; A grinding assembly is disposed inside the housing (1) and positioned below the fine crushing assembly; And a mixing assembly, which is fixed inside the housing (1) and placed below the grinding assembly; The housing (1) is also equipped with a drive assembly for simultaneously driving the crushing section, grinding assembly and mixing assembly.

2. The integrated grinding and mixing device for industrial solid waste according to claim 1, characterized in that, The box (1) is fixedly provided with a partition frame (3). The fine crushing component and the coarse crushing component are respectively arranged on both sides of the partition frame (3), and the fine crushing component is located below the coarse crushing component. The partition frame (3) has a first discharge port (301) at the bottom end of the screening plate (2). The box (1) has an inclined guide surface (102) on the bottom inner wall below the coarse crushing component. The partition frame (3) has a second discharge port (302) at the bottom end of the inclined guide surface (102). The first discharge port (301) is located on the upper side of the coarse crushing assembly, and the second discharge port (302) is located between the coarse crushing assembly and the fine crushing assembly.

3. The integrated grinding and mixing device for industrial solid waste according to claim 2, characterized in that, The fine crushing assembly and the coarse crushing assembly have the same structure, both including two rotating rods (4) rotatably disposed in the housing (1) and crushing rollers (401) respectively disposed on the two rotating rods (4), the two rotating rods (4) rotating in opposite directions; The drive assembly includes a drive motor (10) fixed on the housing (1), a drive rod (9) rotatably connected to the partition frame (3) and connected to the output end of the drive motor (10), a worm gear (901) disposed on the drive rod (9), and a worm wheel (402) disposed on the rotating rod (4) and meshing with the worm gear (901).

4. The integrated grinding and mixing device for industrial solid waste according to claim 3, characterized in that, The grinding assembly includes a grinding disc (5) rotatably disposed inside the housing (1), an arc-shaped filter plate (501) disposed at the center of the grinding disc (5), and a grinding roller (502) rotatably disposed on the partition frame (3) and movingly abutting against the arc-shaped filter plate (501). The drive assembly also includes a main bevel gear (902) fixed on the drive rod (9), a secondary bevel gear (5021) disposed on the shaft of the grinding roller (502), a drive gear (903) disposed on the drive rod (9), and a driven gear (503) disposed on the grinding disc (5).

5. The integrated grinding and mixing device for industrial solid waste according to claim 4, characterized in that, The mixing assembly includes a mixing cylinder (6) fixed in the housing (1), a working shell (7) fixed on the partition frame (3), a stirring tube (8) rotatably connected in the working shell (7), and a plurality of stirring rods (801) equidistantly arranged on the stirring tube (8). The bottom of the mixing cylinder (6) is provided with a discharge port for material discharge. The drive assembly also includes a timing wheel (904) disposed on the drive rod (9) and the stirring tube (8) and a timing belt disposed between the two timing wheels (904), both of which are placed inside the working shell (7).

6. The integrated grinding and mixing device for industrial solid waste according to claim 5, characterized in that, The working shell (7) is configured as a guide surface on the top outer wall of the mixing cylinder (6), and the guide surface is an arc surface or an inclined surface.

7. The integrated grinding and mixing device for industrial solid waste according to claim 6, characterized in that, The inner wall of the box (1) is provided with a guide seat (11) between the fine crushing component and the grinding disc (5). The guide seat (11) includes a square hopper (111) and a conical hopper (112) that are connected to each other. The bottom of the conical hopper (112) is rotatably connected to the top of the grinding disc (5).

8. The integrated grinding and mixing device for industrial solid waste according to claim 7, characterized in that, The bottom of the arc-shaped filter plate (501) is connected to a rotating shaft (12) via a support. A spiral conveying plate (121) is provided on the rotating shaft (12) and placed inside the stirring tube (8). A discharge pipe (802) is provided at the top of the stirring tube (8). The bottom end of the spiral conveying plate (121) is lower than the bottom end of the stirring tube (8).

9. The integrated grinding and mixing device for industrial solid waste according to claim 8, characterized in that, A filter plate (13) is provided on the inner wall of the box (1) above the second discharge port (302). A baffle (131) is slidably connected to the lower side of the filter plate (13). A concave hole is provided on the baffle (131) to cooperate with the filter hole of the filter plate (13). An eccentric shaft (14) is provided on the drive rod (9), and a cam plate (141) is rotatably provided on the eccentric shaft (14). The end of the cam plate (141) away from the eccentric shaft (14) is movably connected to the baffle (131) through a connecting plate.

10. The integrated grinding and mixing device for industrial solid waste according to claim 9, characterized in that, The separator (3) is provided with a protective shell (15) at the first discharge port (301) and the second discharge port (302), and the drive rod (9) is rotatably disposed inside the protective shell (15).

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