Roller press for solid waste

Abstract

The application discloses a roller press for solid waste, which comprises a roller pressing platform, mounting frames, a buffer adjusting device, a screening and roller pressing device, a feeding port, a material collecting cavity and a secondary crushing cavity. The roller pressing platform bears a roller pressing equipment. Two mounting frames are symmetrically arranged and fixed on the roller pressing platform. The buffer adjusting device is fixed on the inner side of the mounting frame. The screening and roller pressing device is fixed on the buffer adjusting device. The feeding port is arranged above the screening and roller pressing device. The material collecting cavity is arranged on the inner side of the mounting frame and below the screening and roller pressing device. The secondary crushing cavity is arranged directly below the screening and roller pressing device and corresponds to the feeding port. Compared with the prior art, the roller press for solid waste can screen the solid waste, and under the action of the limiting rod, the solid waste with a proper size is transferred to the inside of the rotating screening assembly and is crushed by the roller pressing assembly. The roller pressing work can be repeated for multiple times, and the damage of the roller pressing assembly caused by large solid waste is effectively prevented.

Description

Technical Field

[0001] This invention relates to the field of roller press technology, and more specifically, to a roller press for solid waste. Background Technology

[0002] Cement is a powdery hydraulic inorganic binder that forms a paste when mixed with water. It hardens in air or water and can firmly bind materials such as sand and stone together. Its main components are limestone powder and clay. The production process requires mixing limestone powder and clay, which is wasteful of raw materials. Cement can also be made from solid waste from demolished buildings and other remaining materials. However, existing feeding systems cannot pulverize solid waste, resulting in cement containing many particulate impurities with poor adhesion, making it prone to falling off. Furthermore, the varying sizes of solid waste after crushing make it difficult to accurately adjust the spacing between the crushing rollers during roller pressing, hindering targeted pressing and affecting the crushing effect. Therefore, it is necessary to provide a roller press for solid waste to solve the problems mentioned in the background. Summary of the Invention

[0003] To achieve the above objectives, the present invention provides the following technical solution: a roller press for solid waste, comprising:

[0004] Roller pressing platform, supporting roller pressing equipment;

[0005] Two mounting brackets are symmetrically distributed and fixed on the roller pressing platform;

[0006] Two sets of buffer adjustment devices are symmetrically distributed and fixed on the inner side of the mounting frame;

[0007] Two screening roller pressing devices are symmetrically distributed and fixed on the buffer adjustment device;

[0008] The feed inlet is located above the screening roller pressing device;

[0009] The material collection chamber is located inside the mounting frame, below the screening roller pressing device;

[0010] The secondary crushing chamber is located directly below the screening roller press device, corresponding to the feed inlet.

[0011] Furthermore, preferably, the buffer adjustment device includes:

[0012] Two fixed slide rails are symmetrically distributed and fixed to the inner wall of the mounting bracket;

[0013] The connecting horizontal plate is slidably connected to the fixed slide rails at both ends;

[0014] The telescopic shaft has a fixed end that is fixedly connected to the mounting bracket and an extended end that is fixedly connected to the connecting cross plate.

[0015] A buffer spring is installed on the telescopic shaft. That is, when solid waste enters the equipment through the inlet and passes through the screening roller press device, it is processed according to its individual volume. If the solid waste is too large to enter the screening roller press device, the two screening roller press devices move to the sides under the action of the solid waste, thereby driving the connecting horizontal plate to move on the fixed slide rail, compressing the buffer spring and telescopic shaft, allowing the solid waste to pass through the screening roller press device and enter the secondary crushing chamber for crushing, so as to facilitate further screening. If the solid waste volume meets the requirements, it enters the screening roller press device for crushing under the action of the roller press device. After being crushed by the roller press, it is conveyed to the collection chamber for collection and processing.

[0016] Furthermore, preferably, the screening roller pressing device includes:

[0017] Two support arms are symmetrically distributed and fixed to the connecting horizontal plate;

[0018] The fixed connection surface is fixed to the inner side of the two support arms;

[0019] Rotate the screening component to rotate the outer ring set on the fixed connection surface;

[0020] The roller pressing assembly is located inside the center of the rotating screening assembly, and its two ends are rotatably connected to the fixed connection surface.

[0021] A central stirring shaft is rotatably positioned at the center of the roller pressing assembly, with both ends rotatably connected to support arms. One end of the central stirring shaft is connected to an external drive motor. As the rotating screening assembly continues to rotate, solid waste enters the screening roller pressing device. Driven by the rotating screening assembly, the solid waste enters the roller pressing assembly for pressing. After the first pressing by the roller pressing assembly, the central stirring shaft breaks up the flattened solid waste, which is then subjected to a second pressing by the roller pressing assembly. After the second pressing, the solid waste falls through the bottom gap of the rotating screening assembly into the collection chamber for collection.

[0022] Furthermore, preferably, the inner side of the fixed connection surface is provided with a transmission gear, and the outer side is provided with a sprocket assembly. The central stirring shaft is connected to the rotating screening assembly through the transmission gear; the roller pressing assembly is connected to an external rotating motor through the sprocket assembly. That is, driven by the external drive motor, the central stirring shaft rotates, and then, under the action of the transmission gear, the central stirring shaft drives the rotating screening assembly to rotate synchronously, performing screening work on solid waste while simultaneously breaking up the solid waste after one roller pressing; under the action of the external rotating motor, the roller pressing assembly is driven to rotate through the sprocket assembly to perform roller pressing work on the solid waste.

[0023] Furthermore, preferably, the rotating screening component includes:

[0024] The rotating ring surface is rotatably mounted on the fixed connecting surface, and a circular slide is provided on the rotating ring surface;

[0025] The displacement components are arranged in a ring and are fixed in a circular slide within the rotating ring surface;

[0026] The limiting rods are correspondingly set to the displacement components, with both ends fixed to the displacement components. As the rotating annular surface continues to rotate, the rotating screening components on both sides rotate relative to each other. Under the mutual compression of the solid waste, some of the solid waste pushes the limiting rods, causing them to shift off the displacement components and enter the rotating screening components. With the continuous rotation of the rotating screening components, the solid waste is brought into the roller pressing components, where it is roller-pressed. It should be noted that the number of displacement components and limiting rods can be adjusted according to the specific size of the solid waste to be roller-pressed. More limiting rods result in smaller spacing, and a smaller volume of solid waste can enter the rotating screening components.

[0027] Furthermore, preferably, the displacement component includes:

[0028] The positioning block is fixed inside the circular slide of the rotating annular surface;

[0029] Arc-shaped springs are fixed on both sides of the positioning block;

[0030] Two symmetrically distributed movable blocks are slidably mounted within circular tracks on the rotating annular surface and are fixedly connected to arc-shaped springs on both sides of the positioning block. When solid waste enters the rotating screening assembly from the middle of the displacement assembly, the solid waste pushes the limit rods on both sides to move, thereby causing the movable blocks of the displacement assembly to move to both sides, stretching the arc-shaped springs. After the solid waste enters the rotating screening assembly, the arc-shaped springs pull the movable blocks and limit rods on both sides to reset. When solid waste enters the rotating screening assembly from between two adjacent displacement assemblies, the solid waste pushes the limit rods on both sides to move, thereby causing the movable blocks on one side of the displacement assemblies to move towards the positioning block, compressing the arc-shaped springs. After the solid waste enters the rotating screening assembly, the arc-shaped springs pop out to reset, causing the movable blocks and limit rods to reset. After the limit rods reset, it effectively prevents the solid waste from falling out of the rotating screening assembly.

[0031] Furthermore, preferably, the limiting rod is provided with a rotatable rotating surface, and the connection between the rotating surface and the limiting rod is elastic. The rotating surface is located on the outer ring of the roller pressing assembly. When the distance between adjacent limiting rods increases due to the action of solid waste, the rotating surface moves with the limiting rod. However, after the solid waste enters the interior of the rotating screening assembly, the limiting rod returns to its original position. At this time, due to the elastic connection between the rotating surface and the limiting rod, the rotating surface is deflected outward by the action of the solid waste, while simultaneously clamping the solid waste. When the rotating screening assembly drives the solid waste to a high point, the bottom rotating surface deflects downward due to the gravity of the solid waste itself, and the solid waste falls into the roller pressing assembly for roller pressing.

[0032] Furthermore, preferably, the roller pressing assembly includes a first rotating roller, a second rotating roller, and a third rotating roller. The first and third rotating rollers rotate in the same direction, while the second rotating roller rotates in the opposite direction to the other two. When the rotating screening assembly moves the solid waste upward, the solid waste enters between the first and second rotating rollers under the action of the rotating surface for the first roller pressing. After the first roller pressing is completed, the solid waste is broken up by the central stirring shaft and then enters between the second and third rotating rollers for a second roller pressing. After the roller pressing, the solid waste falls into the collection chamber through the gap of the rotating screening assembly.

[0033] Furthermore, preferably, the rotating rollers of the rolling assembly are movably positioned on the radius of the fixed connecting surface. That is, the spacing between the rotating rollers can be adjusted by moving each roller, thus adjusting the rolling precision. The moving range of each rotating roller must not contact the outer rotating surface. After moving the rotating rollers, the sprocket assembly on the outer side of the fixed connecting surface needs to be adjusted to ensure that the rolling assembly can operate normally under the drive of the rotating motor.

[0034] Compared with the prior art, the beneficial effects of the present invention are:

[0035] In this invention, a screening roller pressing device is used to screen solid waste that has passed through the rotating screening assembly. Under the action of the limiting rod, solid waste of suitable size is transferred to the interior of the rotating screening assembly, where it is crushed by the roller pressing assembly. With the adjustment of the rotating roller, the solid waste of this size is targeted for crushing, which improves the crushing efficiency and effect. A secondary crushing chamber is set at the bottom to collect oversized solid waste for secondary crushing, and then feed it back into the roller pressing assembly through the feed inlet. The crushing process can be repeated multiple times, effectively preventing large solid waste from damaging the roller pressing assembly. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of a roller press for solid waste.

[0037] Figure 2A schematic diagram of a buffer adjustment device in a roller press for solid waste processing;

[0038] Figure 3 This is a schematic diagram of a screening roller pressing device in a solid waste roller press.

[0039] Figure 4 This is a side view of a screening roller pressing device in a solid waste roller press;

[0040] Figure 5 This is a schematic diagram of the rotating screening component in a roller press for solid waste.

[0041] Figure 6 This is a schematic diagram of the roller pressing assembly and displacement assembly in a roller press for solid waste.

[0042] In the diagram: 1. Roller pressing platform; 2. Mounting frame; 3. Buffer adjustment device; 4. Screening roller pressing device; 5. Feed inlet; 6. Collection chamber; 7. Secondary crushing chamber; 31. Fixed slide rail; 32. Connecting horizontal plate; 33. Telescopic shaft; 34. Buffer spring; 41. Support arm; 42. Fixed connection surface; 43. Rotating screening assembly; 44. Roller pressing assembly; 45. Central stirring shaft; 431. Rotating ring surface; 432. Displacement assembly; 433. Limiting rod; 441. First rotating roller; 442. Second rotating roller; 443. Third rotating roller; 4321. Positioning block; 4322. Arc spring; 4323. Moving block; 4331. Rotating surface. Detailed Implementation

[0043] Please see Figures 1-6 In this embodiment of the invention, a roller press for solid waste includes:

[0044] Roller pressing platform 1, which supports the roller pressing equipment;

[0045] Mounting bracket 2, two are symmetrically distributed and fixed on roller pressing platform 1;

[0046] Two sets of buffer adjustment devices 3 are symmetrically distributed and fixed on the inner side of the mounting frame 2;

[0047] Two screening roller pressing devices 4 are symmetrically distributed and fixed on the buffer adjustment device 3;

[0048] The feed inlet 5 is located above the screening roller pressing device 4;

[0049] The material collection chamber 6 is located inside the mounting frame 2, below the screening roller pressing device 4;

[0050] The secondary crushing chamber 7 is located directly below the screening roller pressing device 4 and corresponds to the feed inlet 5.

[0051] In this embodiment, the buffer adjustment device 3 includes:

[0052] Two fixed slide rails 31 are symmetrically distributed and fixed on the inner wall of the mounting bracket 2;

[0053] The connecting horizontal plate 32 is slidably connected to the fixed slide rail 31 at both ends;

[0054] The telescopic shaft 33 has a fixed end that is fixedly connected to the mounting bracket 2 and an extended end that is fixedly connected to the connecting cross plate 32.

[0055] A buffer spring 34 is mounted on the telescopic shaft 33. That is, when solid waste enters the equipment through the feed inlet 5 and passes through the screening roller press device 4, it is processed according to its individual volume. If the solid waste is too large to enter the screening roller press device 4, the two screening roller press devices 4 move to the sides under the action of the solid waste, thereby driving the connecting horizontal plate 32 to move on the fixed slide rail 31, compressing the buffer spring 34 and the telescopic shaft 33, allowing the solid waste to pass through the screening roller press device 4 and enter the secondary crushing chamber 7 for crushing, so as to facilitate further screening. If the solid waste volume meets the requirements, under the action of the screening roller press device 4, the solid waste enters the screening roller press device 4 for roller pressing. After being crushed by roller pressing, it is conveyed to the collection chamber 6 for collection and processing.

[0056] In this embodiment, the screening roller pressing device 4 includes:

[0057] Two support arms 41 are symmetrically distributed and fixed on the connecting cross plate 32;

[0058] The fixed connection surface 42 is fixed to the inner side of the two support arms 41;

[0059] Rotate the screening component 43 to rotate the outer ring of the fixed connection surface 42;

[0060] The roller pressing assembly 44 is located inside the center of the rotating screening assembly 43, and its two ends are rotatably connected to the fixed connection surface 42.

[0061] A central stirring shaft 45 is rotatably positioned at the center of the roller pressing assembly 44, with both ends rotatably connected to the support arms 41. One end of the central stirring shaft 45 is connected to an external drive motor. Under the continuous rotation of the rotating screening assembly 43, solid waste enters the screening roller pressing device 4. Driven by the rotating screening assembly 43, the solid waste enters the roller pressing assembly 44 for roller pressing. After the first roller pressing by the roller pressing assembly 44, the central stirring shaft 45 breaks up the flattened solid waste, which is then subjected to a second roller pressing by the roller pressing assembly 44. After the second roller pressing, the solid waste falls through the bottom gap of the rotating screening assembly 43 into the collection chamber 6 for collection.

[0062] In this embodiment, a transmission gear is provided on the inner side of the fixed connection surface 42, and a sprocket assembly is provided on the outer side. The central stirring shaft 45 is connected to the rotating screening assembly 43 through the transmission gear; the roller pressing assembly 44 is connected to an external rotating motor through the sprocket assembly. That is, driven by the external drive motor, the central stirring shaft 45 rotates, and then, under the action of the transmission gear, the central stirring shaft 45 drives the rotating screening assembly 43 to rotate synchronously, performing screening work on solid waste while simultaneously breaking up the solid waste after one roller pressing; under the action of the external rotating motor, the roller pressing assembly 44 is driven to rotate through the sprocket assembly to perform roller pressing work on the solid waste.

[0063] In this embodiment, the rotating screening component 43 includes:

[0064] The rotating annular surface 431 is rotatably mounted on the fixed connecting surface 42, and a circular slide is provided on the rotating annular surface 431;

[0065] Multiple displacement components 432 are arranged in a ring and fixed in the circular slide of the rotating ring surface 431.

[0066] The limiting rod 433 is correspondingly set to the displacement component 432, and its two ends are fixed to the displacement component 432. Under the continuous rotation of the rotating annular surface 431, the rotating screening components 43 on both sides rotate relative to each other. Then, under the mutual compression of solid waste, some solid waste pushes the limiting rod 433 to shift off the displacement component 432 and enter the rotating screening component 43. Under the continuous rotation of the rotating screening component 43, the solid waste is brought into the roller pressing component 44, where it is roller pressed. It should be noted that the number of displacement components 432 and limiting rods 433 can be adjusted according to the specific size of the solid waste to be roller pressed. The more limiting rods 433 are set, the smaller the spacing, and the smaller the volume of solid waste that can enter the rotating screening component 43.

[0067] In this embodiment, the displacement component 432 includes:

[0068] Positioning block 4321 is fixed in the circular slide of rotating annular surface 431;

[0069] The arc-shaped spring 4322 is fixed on both sides of the positioning block 4321;

[0070] Two movable blocks 4323 are symmetrically distributed and slidably set in the circular slide of the rotating ring surface 431, and are fixedly connected to the arc springs 4322 on both sides of the positioning block 4321 respectively. When solid waste enters the rotating screening assembly 43 from the middle of the displacement assembly 432, the solid waste pushes the limit rods 433 on both sides to move, and then the moving block 4323 of the displacement assembly 432 moves to both sides, stretching the arc spring 4322. After the solid waste enters the rotating screening assembly 43, the arc spring 4322 pulls the moving block 4323 and the limit rod 433 on both sides to reset. When solid waste enters the rotating screening assembly 43 from between two adjacent displacement assemblies 432, the solid waste pushes the limit rods 433 on both sides to move, and then the moving block 4323 on one side of the displacement assembly 432 moves towards the positioning block 4321, compressing the arc spring 4322. After the solid waste enters the rotating screening assembly 43, the arc spring 4322 pops out to reset, driving the moving block 4323 and the limit rod 433 to reset. After the limit rod 433 resets, it can effectively prevent the solid waste from falling out of the rotating screening assembly 43.

[0071] In this embodiment, the limiting rod 433 is provided with a rotatable rotating surface 4331, and the connection between the rotating surface 4331 and the limiting rod 433 is elastic. The rotating surface 4331 is located on the outer ring of the roller pressing assembly 44. When the distance between adjacent limiting rods 433 increases due to the action of solid waste, the rotating surface 4331 moves with the limiting rod 433. However, after the solid waste enters the interior of the rotating screening assembly 43, the limiting rod 433 returns to its original position. At this time, due to the elastic connection between the rotating surface 4331 and the limiting rod 433, the rotating surface 4331 is deflected outward by the action of solid waste, while simultaneously clamping the solid waste. When the rotating screening assembly 43 drives the solid waste to a high point, the rotating surface 4331 at the bottom deflects downward due to the gravity of the solid waste itself, and the solid waste falls into the roller pressing assembly 44 for roller pressing.

[0072] In this embodiment, the roller pressing assembly 44 includes a first rotating roller 441, a second rotating roller 442, and a third rotating roller 443. The first rotating roller 441 and the third rotating roller 443 rotate in the same direction, while the second rotating roller 442 rotates in the opposite direction to the other two rotating rollers. When the rotating screening assembly 43 moves the solid waste upward, the solid waste enters between the first rotating roller 441 and the second rotating roller 442 under the action of the rotating surface 4331 for the first roller pressing. After the first roller pressing is completed, the solid waste is dispersed by the central stirring shaft 45 and then enters between the second rotating roller 442 and the third rotating roller 443 for the second roller pressing. After the roller pressing, the solid waste falls into the collection chamber 6 through the gap of the rotating screening assembly 43.

[0073] In this embodiment, the rotating rollers of the roller pressing assembly 44 are movably arranged on the radius of the fixed connecting surface 42. That is, the spacing between the rotating rollers can be adjusted by moving each rotating roller, thereby adjusting the roller pressing accuracy. Moreover, the moving range of each rotating roller must not come into contact with the outer rotating surface 4331. After moving the rotating rollers, the sprocket assembly on the outer side of the fixed connecting surface 42 needs to be adjusted to ensure that the roller pressing assembly 44 can operate normally under the drive of the rotating motor.

[0074] In practice, the spacing between the rotating rollers in the roller pressing assembly 44 is first adjusted according to the roller pressing requirements. The higher the precision, the closer the spacing between the rotating rollers. At the same time, the smaller the spacing between the upper limit rods 433 of the rotating screening assembly 43 is. After the settings are completed, the pre-crushed solid waste is poured into the equipment from the feed port 5. Driven by the drive motor, the rotating screening assembly 43 rotates continuously, transferring the solid waste of the appropriate volume to the inside of the screening roller pressing device 4. It is clamped by the rotating surface 4331 on the limit rod 433. When it rotates to the highest point, it is thrown into the roller pressing assembly 44. Driven by the rotating motor, the first rotating roller 441 and the second rotating roller 441 rotate... The second rotating roller 442 performs the first rolling press on the solid waste. After the first rolling press is completed, the central stirring shaft 45 driven by the drive motor breaks up the solid waste and then enters between the second rotating roller 442 and the third rotating roller 443 for a second rolling press. After the rolling press, the solid waste falls into the collection chamber 6 through the gap of the rotating screening component 43 for collection and processing. Solid waste whose volume does not meet the requirements and cannot enter the screening roller pressing device 4 falls directly into the secondary crushing chamber 7. After being crushed again, it is poured into the roller pressing equipment through the feed port 5. This process is repeated multiple times to improve the rolling pressing accuracy and effectively prevent large solid waste from damaging the roller pressing component 44.

[0075] The above description is merely 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. A roller press for solid waste, characterized in that: include: Roller pressing platform (1), bearing roller pressing equipment; Mounting brackets (2) are provided in two symmetrically distributed locations and are fixed on the roller pressing platform (1); Two sets of buffer adjustment devices (3) are symmetrically distributed and fixed on the inner side of the mounting frame (2); Two screening roller pressing devices (4) are symmetrically distributed and fixed on the buffer adjustment device (3); The feed inlet (5) is located above the screening roller pressing device (4); The material collection chamber (6) is located inside the mounting frame (2) and below the screening roller pressing device (4); The secondary crushing chamber (7) is located directly below the screening roller pressing device (4) and corresponds to the feed inlet (5); The screening roller pressing device (4) includes: Two support arms (41) are symmetrically distributed and fixed on the connecting cross plate (32); The fixed connection surface (42) is fixed to the inner side of the two support arms (41); Rotate the screening component (43) to rotate the outer ring set on the fixed connection surface (42); The roller pressing assembly (44) is located at the internal center of the rotating screening assembly (43), and its two ends are rotatably connected to the fixed connecting surface (42); The central stirring shaft (45) is rotatably set at the center of the roller pressing assembly (44), and its two ends are rotatably connected to the support arm (41). One end of the central stirring shaft (45) is connected to an external drive motor. The rotating screening component (43) includes: The rotating annular surface (431) is rotatably mounted on the fixed connecting surface (42), and a circular slide is provided on the rotating annular surface (431); The displacement components (432) are arranged in a ring and are fixed in the circular slide of the rotating ring surface (431); The limiting rod (433) is set in correspondence with the displacement component (432), and its two ends are fixed on the displacement component (432).

2. The solid waste roller press according to claim 1, characterized in that: The buffer adjustment device (3) includes: Two fixed slide rails (31) are symmetrically distributed and fixed on the inner wall of the mounting bracket (2); The connecting horizontal plate (32) is slidably connected to the fixed slide rail (31) at both ends; The telescopic shaft (33) has its fixed end fixedly connected to the mounting bracket (2) and its extended end fixedly connected to the connecting cross plate (32); A buffer spring (34) is mounted on the telescopic shaft (33).

3. A roller press for solid waste according to claim 1, characterized in that: The inner side of the fixed connection surface (42) is provided with a transmission gear, and the outer side is provided with a sprocket assembly. The central stirring shaft (45) is connected to the rotating screening assembly (43) through the transmission gear; the roller pressing assembly (44) is connected to the external rotating motor through the sprocket assembly.

4. A roller press for solid waste according to claim 1, characterized in that: The displacement component (432) includes: The positioning block (4321) is fixed in the circular slide of the rotating annular surface (431); An arc-shaped spring (4322) is fixed on both sides of the positioning block (4321); Two movable blocks (4323) are symmetrically distributed and slidably set in the circular slide of the rotating ring surface (431), and are fixedly connected to the arc springs (4322) on both sides of the positioning block (4321).

5. A roller press for solid waste according to claim 1, characterized in that: The limiting rod (433) is provided with a rotatable rotating surface (4331), and the connection between the rotating surface (4331) and the limiting rod (433) is elastic.

6. A roller press for solid waste according to claim 1, characterized in that: The rolling assembly (44) includes a first rotating roller (441), a second rotating roller (442) and a third rotating roller (443). The first rotating roller (441) and the third rotating roller (443) rotate in the same direction, and the second rotating roller (442) rotates in the opposite direction to the other two rotating rollers.

7. A roller press for solid waste according to claim 1, characterized in that: The rotating roller of the roller pressing assembly (44) is movably set on the radius of the fixed connecting surface (42).

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