Double-roller crusher

Abstract

The utility model relates to the technical field of material crushing, and particularly discloses a double-roller crusher which comprises a support frame, a crushing assembly is arranged at the top of the support frame, and a grinding assembly is arranged below the crushing assembly and is used for secondary crushing treatment; one or more groups of telescopic pieces are arranged at the bottom of the crushing assembly and mounted at the bottom of the supporting frame, and piston rods of the telescopic pieces are connected with the bottom of the crushing assembly and used for adjusting the levelness of the crushing assembly; the smashing assembly comprises a feeding hopper and a box body. According to the utility model, through the arrangement of the telescopic piece, materials can be inclined when the rollers are crushed, so that the crushing effect is enhanced, and after crushing, the materials are uniformly ground through the annular array and reasonable spacing design of the arranged grinding blocks, so that the refining degree and the treatment efficiency of the materials are enhanced; and stable support is provided through the design of the fixing frame and the supporting rod, vibration and deviation in the operation process are reduced, and reliable operation of equipment is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of material crushing, in particular to a double-roll crusher. Background Art

[0002] Small-scale experiments or engineering industries generally require sample crushing, grinding, sampling, and other operations. Existing crushing equipment, such as jaw crushers, can handle samples with coarse particle sizes. When further crushing is required, roller crushers are more commonly used.

[0003] Roller crushers typically feature two opposing circular rollers that rotate and squeeze the sample to achieve crushing. However, in practice, even after the initial crushing at the front end, uneven coarseness and fineness can still occur in the sample. This presents a challenge in the roller crushing stage: further crushing to a uniform particle size. When dealing with samples exhibiting significant variations in coarseness and fineness, the equipment requires adjustment of the gap between the symmetrical rollers. Excessive gaps impair crushing efficiency, while too small a gap reduces efficiency and can easily cause the machine to jam. Symmetrical rollers are suitable for samples with uniform particle sizes, but actual samples often fail to meet these requirements, significantly impacting crushing efficiency. Frequent adjustments also shorten the equipment's lifespan, especially the adjuster, which can become susceptible to damage. Furthermore, samples that don't meet the required particle size require repeated re-crushing, which can lead to over-grinding. Furthermore, even a single crushing operation may not meet the required crushing standards, necessitating improvements. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a double-roll crusher, which solves the problem that the existing double-roll crusher has a poor crushing effect due to too large a gap.

[0005] The utility model provides a roller crusher, comprising: a support frame, a crushing assembly is provided on the top of the support frame, and a grinding assembly is provided below the crushing assembly for secondary crushing processing;

[0006] The bottom of the crushing assembly is provided with one or more telescopic members, which are mounted on the bottom of the support frame, and the piston rods of the telescopic members are connected to the bottom of the crushing assembly to adjust the levelness of the crushing assembly;

[0007] The crushing assembly includes a feed hopper and a box body. A feed pipe is provided below the box body, and the feed pipe is adapted to the grinding assembly.

[0008] As a further improvement of the present invention, the box body is combined with a telescopic member, a group of rollers rotating in opposite directions are provided on the inner side of the box body, and a second driving motor is provided on the outer side of the box body for driving the rollers to rotate.

[0009] As a further improvement of the present invention, the grinding assembly includes a filter cartridge, the outer side of which is provided with one or more tracks and is installed above the support frame, and the end of the filter cartridge close to the feed pipe is provided with a feed port and is adapted to the feed pipe.

[0010] As a further improvement of the present invention, the filter drum is provided with at least one set of rollers at one of the tracks, and a chain is provided at the other track. A drive motor 1 is sleeved on the chain, and the output shaft of the drive motor 1 drives the chain to drive the filter drum to rotate on the rollers.

[0011] As a further improvement of the present invention, a discharge guide plate is provided below the filter cartridge, and one side of the discharge guide plate extends to one side of the support frame and is connected to the support frame.

[0012] As a further improvement of the present invention, a baffle is provided on the other side of the filter cylinder located at the discharge guide plate to prevent material from splashing.

[0013] As a further improvement of the present invention, a grinding kit is sleeved on the inner side of the filter cylinder and a fixed distance is maintained between the filter cylinder and the grinding kit for secondary grinding of materials.

[0014] As a further improvement of the present invention, the grinding kit includes a grinding cylinder, an inner cavity is opened in the middle of the grinding cylinder, a fixing frame is installed in the inner cavity, and a support rod is provided in the middle of the fixing frame for supporting the grinding cylinder.

[0015] As a further improvement of the present invention, one end of the grinding cylinder is provided with one or more positioning holes, and the positioning holes are sleeved on the outer side of the fixing frame.

[0016] As a further improvement of the present invention, grinding blocks arranged in a ring array are provided on the outside of the grinding cylinder, and a distance is maintained between the grinding blocks and the filter cylinder, and the distance is used to accommodate the crushed material.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] The utility model provides a telescopic member, which allows the material to tilt during roller crushing, thereby enhancing the crushing effect. After crushing, the annular array of grinding blocks and the reasonable spacing design ensure that the material is evenly ground, thereby enhancing the material refinement and processing efficiency.

[0019] The design of the fixing frame and support rod provides stable support, reduces vibration and deviation during operation, and ensures reliable operation of the equipment;

[0020] Furthermore, the spacing between the grinding block and the filter cartridge effectively prevents material accumulation and clogging, promotes smooth material flow, and improves overall operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 This is a schematic diagram of the combined three-dimensional structure of the support frame, grinding assembly and crushing assembly in the utility model;

[0023] Figure 2 This is a schematic diagram of the front view of the structure of the combination of the support frame, the grinding assembly and the crushing assembly in the present invention;

[0024] Figure 3 This is a schematic side view of the structure of the combination of the support frame, the grinding assembly and the crushing assembly in the present invention;

[0025] Figure 4 This is a schematic diagram of the front view of the combined structure of the support frame, grinding assembly, crushing assembly and telescopic member in the utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the grinding kit of the utility model;

[0027] Figure 6 For this utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0028] In the figure: 1. Support frame; 2. Grinding assembly; 3. Crushing assembly; 4. Grinding kit; 5. Telescopic member;

[0029] 21. Drive motor 1; 22. Discharge guide plate; 23. Filter cartridge; 24. Track; 25. Baffle; 26. Chain; 27. Roller;

[0030] 31. Box body; 32. Driving motor 2; 33. Roller; 34. Feed hopper; 35. Feeding pipe;

[0031] 41. Support rod; 42. Grinding block; 43. Inner cavity; 44. Fixing frame; 45. Positioning hole; 46. Grinding cylinder. DETAILED DESCRIPTION

[0032] The following diagrams illustrate various embodiments of the present invention. For clarity, many physical details will be included in the following description. However, it should be understood that these physical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these physical details are not essential. Furthermore, to simplify the illustrations, some commonly used structures and components are depicted in a simplified schematic manner.

[0033] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0034] Small-scale experiments or engineering projects often require sample crushing, grinding, and sampling. Existing crushing equipment, such as jaw crushers, can handle samples with relatively coarse particle sizes. When further crushing is required, roller crushers are often used. Roller crushers typically utilize two opposing circular rollers that rotate and squeeze the sample to achieve crushing. However, in practice, even after initial crushing, uneven particle size can still occur in the sample. This is a challenge addressed during the roller crushing stage: further crushing to a uniform particle size. When the particle size within a sample varies significantly, the gap between the symmetrical rollers must be adjusted. Too large a gap compromises crushing efficiency, while too small a gap reduces efficiency and can easily cause the machine to jam. Symmetrical rollers are suitable for samples with uniform particle sizes, but actual samples often fail to meet these requirements, significantly impacting crushing efficiency. Frequent adjustments also shorten the equipment's lifespan, especially the adjuster, which can easily become damaged. Furthermore, samples that don't meet the required particle size require repeated re-crushing, which can lead to over-grinding. And one-time crushing may not meet the crushing standard. Based on this, the present application provides a roller crusher, such as Figures 1 to 3 Shown, including:

[0035] Support frame 1, a crushing assembly 3 is provided on the top of the support frame 1, and a grinding assembly 2 is provided below the crushing assembly 3 for secondary crushing processing;

[0036] The bottom of the crushing assembly 3 is provided with one or more sets of telescopic members 5, which are installed at the bottom of the support frame 1, and the piston rods of the telescopic members 5 are connected to the bottom of the crushing assembly 3, and are used to adjust the levelness of the crushing assembly 3;

[0037] The crushing assembly 3 includes a feed hopper 34 and a box body 31 . A feed pipe 35 is provided below the box body 31 . The feed pipe 35 is adapted to the grinding assembly 2 .

[0038] Support frame 1 supports the structure of the entire crusher to ensure the stability and durability of the equipment.

[0039] They are generally made of strong materials, such as steel, to withstand the forces of the crushing and grinding processes.

[0040] The crushing assembly 3 includes a feed hopper 34 and a box 31 .

[0041] The feed hopper 34 is used to introduce the sample to be crushed into the box body 31. The fluidity and uniform distribution of the sample are taken into consideration during design.

[0042] The box 31 accommodates and supports the working parts of the roller 33. The internal design takes into account the uniform crushing and flow of the sample.

[0043] The sample is initially crushed to achieve the predetermined coarse crushing particle size.

[0044] The feed pipe 35 provided below guides the crushed sample to the grinding assembly 2 .

[0045] The grinding assembly 2 is located below the crushing assembly 3. The crushed sample is subjected to a secondary crushing process to achieve the required fineness of the sample, optimize the grinding efficiency and the uniformity of the sample.

[0046] Telescopic part 5: The horizontality of the crushing component 3 is adjusted through the piston rod to ensure uniformity and stability during the crushing process. It can be adjusted as needed to adapt to different samples and crushing requirements.

[0047] The crushing component 3 is responsible for coarse crushing, and the grinding component 2 is responsible for fine grinding, making the sample crushing process more efficient and clearly divided into stages, ensuring that the particle size of the final sample is more uniform.

[0048] By adjusting the level of the crushing assembly 3, it is possible to adapt to the crushing requirements of different samples, improve the consistency and effect of crushing, and reduce the problem of uneven crushing caused by uneven equipment.

[0049] Through reasonable design and material selection, the wear of the equipment, especially the wear of the roller 33, is reduced, and the service life of the equipment is extended.

[0050] Since the adjustment part of the equipment (such as the telescopic member 5) can be adjusted accurately, the situation of jamming or uneven breakage caused by improper adjustment is reduced, thereby reducing the failure rate of the equipment.

[0051] By combining primary crushing and secondary grinding in one device, the steps and time of sample processing are reduced and the overall production efficiency is improved.

[0052] The function of the telescopic member 5 in the double-roll crusher is to adjust the horizontality of the crushing assembly 3 to ensure the uniformity of the crushing process and the stability of the equipment. It is generally carried out by hydraulic pressure, pneumatic pressure, screw adjustment, etc., and high-strength steel or alloy materials are used to withstand large loads and have wear resistance. During operation, the telescopic member 5 is adjusted in real time according to the different characteristics of the sample and the crushing requirements to maintain the horizontality of the crushing assembly 3.

[0053] See also Figure 1 、 Figure 2 、 Figure 3 as well as Figure 4 The box body 31 is combined with the telescopic member 5. A group of rollers 33 that rotate in opposite directions are provided on the inner side of the box body 31. A driving motor 32 is provided on the outer side of the box body 31 for driving the rollers 33 to rotate.

[0054] The box body 31 is usually made of high-strength steel plate or cast iron to ensure that it can withstand the mechanical pressure and impact during the crushing process.

[0055] The box body 31 is designed as a closed structure to prevent dust from flying and sample leakage during the crushing process.

[0056] A set of counter-rotating rollers 33 are installed inside the box 31. The design of the rollers 33 enables them to squeeze and crush the sample during the relative rotation process.

[0057] The rollers 33 are generally made of high-hardness alloy material to improve wear resistance and extend service life.

[0058] The telescopic member 5 is installed at the bottom of the box 31, and the horizontality and stability of the box 31 are ensured by adjusting the length of the telescopic rod. This is very important for the uniform rotation and crushing effect of the roller 33.

[0059] The telescopic member 5 allows the horizontal position of the box 31 to be quickly adjusted during operation to adapt to the processing requirements of different samples.

[0060] The telescopic member 5 is fixed to the bottom of the box body 31 through a connecting device to ensure stability and safety during the adjustment process.

[0061] The telescopic member 5 is usually arranged at the bottom corner or bottom edge of the box body 31 to evenly distribute the load and ensure the stability of the box body 31 .

[0062] The driving motor is installed outside the box 31 and is used to drive the rollers 33 to rotate.

[0063] The driving motor transmits power to the roller pair 33 through a transmission system (such as a belt, gears, etc.) to realize the rotation of the roller pair 33 .

[0064] The motor is usually equipped with a speed regulating device, which can adjust the speed of the roller 33 according to different crushing requirements to optimize the crushing effect.

[0065] The motor can also be equipped with a protective device on the outside to protect the motor from external influences and improve the safety of the equipment.

[0066] The motor is equipped with a heat dissipation device (such as a fan) to ensure the normal operating temperature of the motor during long-term operation.

[0067] The telescopic member 5 allows for precise adjustment of the levelness of the box 31 and, in turn, adjustment of the gap between the rollers 33 to achieve precise control of the sample particle size, ensuring that the crushed sample reaches the desired particle size.

[0068] The counter-rotation of the rollers 33 and the cooperation of the telescopic member 5 make the sample evenly stressed during the crushing process, thereby improving the crushing effect and processing efficiency.

[0069] The horizontality of the box body 31 is maintained by the telescopic member 5, ensuring the stability and uniformity of the rollers 33 during operation, thereby reducing equipment failure or uneven crushing problems caused by unevenness.

[0070] The stable structural design and the reliable drive system of the roller 33 reduce the failure rate and the maintenance requirements of the equipment.

[0071] The high-strength material and precise design improve the durability of the rollers 33 and the box body 31, extending the service life of the equipment.

[0072] The adjustment mechanism of the telescopic member 5 simplifies the operation process of the device, makes the adjustment work faster and more convenient, and improves the operating efficiency.

[0073] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 The grinding assembly 2 includes a filter cartridge 23 , the outer side of which is provided with one or more tracks 24 and is installed above the support frame 1 , and a feed port is provided at one end of the filter cartridge 23 close to the feed pipe 35 and is adapted to the feed pipe 35 .

[0074] The filter cartridge 23 is located on one of the tracks 24 and is provided with at least one set of rollers 27 , and a chain 26 is provided on the other track 24 . A drive motor 21 is sleeved on the chain 26 , and the output shaft of the drive motor 21 drives the chain 26 to drive the filter cartridge 23 to rotate on the rollers 27 .

[0075] A discharge guide plate 22 is provided below the filter cartridge 23 . One side of the discharge guide plate 22 extends to one side of the support frame 1 and is connected to the support frame 1 .

[0076] The filter cartridge 23 is provided with a baffle 25 on the other side of the discharge guide plate 22 to prevent material from splashing.

[0077] The inner side of the filter cartridge 23 is sleeved with a grinding kit 4 , which is kept at a fixed distance from the filter cartridge 23 for secondary grinding of materials.

[0078] The filter cartridge 23 is generally made of wear-resistant and corrosion-resistant materials, such as stainless steel or alloy materials, to ensure resistance to wear and chemical corrosion during the grinding process.

[0079] The filter cartridge 23 is installed above the support frame 1 and can further grind the crushed material.

[0080] The feed port is provided at one end of the filter cartridge 23 close to the feed pipe 35 , and is adapted to the feed pipe 35 for receiving the material from the pulverizing assembly 3 and introducing the material into the filter cartridge 23 for further grinding.

[0081] One or more rails 24 are provided on the outside of the filter cartridge 23 . These rails 24 are used to support and guide the rotation of the filter cartridge 23 . The rails 24 are usually made of high-strength steel to ensure stability and durability.

[0082] The roller 27 is arranged on a track 24 to provide rotational support for the filter cartridge 23, reduce friction, and ensure that the filter cartridge 23 runs smoothly during the grinding process.

[0083] A chain 26 is provided at another track 24. The chain 26 is driven by a driving motor, thereby pushing the filter cartridge 23 to rotate on a roller 27. The chain 26 is generally made of wear-resistant material and has good durability.

[0084] Drive motor 1 21: is arranged at the chain 26. The output shaft of the drive motor drives the filter cartridge 23 to rotate through the chain 26 to achieve a uniform grinding effect.

[0085] The motor is usually equipped with a speed regulating device to adjust the rotation speed of the filter cartridge 23 to adapt to different grinding requirements.

[0086] The discharge guide plate 22 is arranged below the filter cylinder 23 and is used to collect and guide the ground material.

[0087] One side of the discharge guide plate 22 extends to the side of the support frame 1 and is connected to the support frame 1, ensuring the stability and durability of the guide plate. It guides the ground material for smooth discharge and prevents material accumulation under the filter cartridge 23. The guide plate is typically tilted at an appropriate angle to ensure smooth material flow to the discharge port.

[0088] The baffle 25 is arranged on the other side of the discharge guide plate 22. The baffle 25 is used to prevent the splashing of materials during the grinding process, protect the cleanliness of the operating environment, and reduce material loss.

[0089] The baffle 25 is typically adjustable to accommodate varying material flow rates and processing requirements.

[0090] The rotation of the filter cartridge 23 and the chain 26 drive system ensure that the material is evenly ground throughout the filter cartridge 23, thereby improving the processing effect and consistency of the material.

[0091] The design of the discharge guide plate 22 effectively guides the ground material, avoids material accumulation and blockage, and improves production efficiency.

[0092] The provision of the baffle 25 effectively prevents the splashing of materials, keeps the operating environment clean, and reduces the waste of materials.

[0093] The cooperation between the roller 27 and the track 24 ensures the smooth rotation of the filter cartridge 23, reduces wear and instability, and improves the overall performance of the device.

[0094] The design of the chain 26 driving the motor system enhances the safety of the equipment, ensures that the filter cartridge 23 is stable and reliable during rotation, and reduces operational risks.

[0095] The design of the baffle 25 and chain 26 drive system makes the operation and maintenance of the equipment more convenient, reducing downtime and maintenance costs.

[0096] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 as well as Figure 6 The grinding kit 4 includes a grinding cylinder 46 , an inner cavity 43 is opened in the middle of the grinding cylinder 46 , a fixing frame 44 is installed in the inner cavity 43 , and a support rod 41 is provided in the middle of the fixing frame 44 for supporting the grinding cylinder 46 .

[0097] One end of the grinding cylinder 46 is provided with one or more positioning holes 45 , and the positioning holes 45 are sleeved on the outside of the fixing frame 44 .

[0098] Grinding blocks 42 arranged in a circular array are provided on the outside of the grinding cylinder 46 . A distance is maintained between the grinding blocks 42 and the filter cylinder 23 , and the distance is used to accommodate the crushed material.

[0099] The grinding cylinder 46 is generally made of a wear-resistant and corrosion-resistant material, such as high-strength alloy steel or stainless steel, to cope with wear and chemical reactions during the grinding process.

[0100] Shape: The grinding cylinder 46 is generally cylindrical, with its outer wall provided with components for fixing and supporting, while the inner cavity 43 is used to accommodate materials for grinding.

[0101] The grinding cylinder 46 has an inner cavity 43 in the middle thereof for accommodating grinding media and materials, providing sufficient space for effective grinding.

[0102] The fixing frame 44 is installed in the middle of the inner cavity 43 of the grinding cylinder 46 to provide support for the grinding cylinder 46, ensure the stability of the grinding cylinder 46 during rotation, and prevent it from shifting due to gravity or improper operation.

[0103] The support rod 41 is used to support the grinding cylinder 46 to help maintain its balance and stability during operation.

[0104] A positioning hole 45 is provided at one end of the grinding cylinder 46 and is sleeved on the outside of the fixing frame 44 to ensure accurate positioning between the grinding cylinder 46 and the fixing frame 44 so that the grinding cylinder 46 and the fixing frame 44 maintain a correct posture during operation.

[0105] Depending on the design requirements of the grinding cylinder 46 , one or more positioning holes 45 may be provided to accommodate different configurations of the fixing frame 44 .

[0106] The design of the positioning hole 45 ensures that the grinding cylinder 46 can be securely mounted on the fixing frame 44 while allowing a certain adjustment range for easy installation and maintenance.

[0107] The grinding blocks 42 are arranged in an annular array outside the grinding cylinder 46. The grinding blocks 42 are usually made of highly wear-resistant materials, such as cemented carbide or ceramics, to improve grinding efficiency and durability.

[0108] A certain distance is maintained between the grinding block 42 and the filter cartridge 23. This distance is used to accommodate the crushed material and ensure that the material can fully contact the grinding block 42 during the grinding process.

[0109] The configuration of the grinding block 42 provides a grinding surface, which achieves fineness and uniform grinding of the material through contact and friction with the material.

[0110] Maintaining the spacing helps control the flow and distribution of the pulverized material in the grinding cylinder 46, ensuring uniformity of the grinding process.

[0111] Grinding process:

[0112] The material enters the inner cavity 43 of the grinding cylinder 46 through the feed port, comes into contact and friction with the grinding block 42, and is gradually refined.

[0113] The rotation of the grinding cylinder 46 drives the grinding block 42 to grind, and the material gradually becomes finer under the action of the grinding block 42.

[0114] The ground material flows through the set gap to the filter cartridge 23 and is finally discharged.

[0115] The annular array design of the grinding blocks 42 provides a comprehensive grinding surface, ensuring that the material is evenly processed during the grinding process, thereby improving the grinding efficiency and the degree of material refinement.

[0116] The design of the fixing frame 44 and the support rod 41 provides stable support for the grinding cylinder 46, reduces vibration and deviation during the grinding process, and ensures the stability and reliability of the equipment.

[0117] The spacing design between the grinding block 42 and the filter cartridge 23 effectively accommodates the crushed material, avoids accumulation and clogging of the material, and ensures smooth flow and processing of the material.

[0118] The grinding cylinder 46 and the grinding block 42 are made of wear-resistant materials, which reduces the frequency of replacement due to wear and tear, thereby extending the service life of the equipment.

[0119] The provision of the positioning hole 45 simplifies the installation and disassembly process of the grinding cylinder 46 , reducing the time and cost of maintenance and replacement of parts.

[0120] The design of the support system and the positioning holes 45 makes the operation and adjustment of the equipment more convenient, thereby improving the operating efficiency and user experience.

[0121] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be included within the scope of the claims of the present invention.

Claims

1. A roller crusher, characterized in that it comprises: A support frame (1), wherein a crushing assembly (3) is provided on the top of the support frame (1), and a grinding assembly (2) is provided below the crushing assembly (3) for secondary crushing processing; The bottom of the crushing assembly (3) is provided with one or more telescopic members (5), which are mounted on the bottom of the support frame (1), and whose piston rods are connected to the bottom of the crushing assembly (3) and are used to adjust the horizontality of the crushing assembly (3); The pulverizing assembly (3) comprises a feed hopper (34) and a box body (31). A feed pipe (35) is provided below the box body (31), and the feed pipe (35) is adapted to the grinding assembly (2).

2. The roller crusher according to claim 1, characterized in that: The box body (31) is combined with the telescopic member (5), and a group of rollers (33) rotating in opposite directions are arranged on the inner side of the box body (31), and a second driving motor (32) is arranged on the outer side of the box body (31) for driving the rollers (33) to rotate.

3. The roller crusher according to claim 1, characterized in that: The grinding assembly (2) comprises a filter cartridge (23), the outer side of which is provided with one or more tracks (24) and is mounted above the support frame (1), and an end of the filter cartridge (23) close to the feed pipe (35) is provided with a feed port, which is adapted to the feed pipe (35).

4. The roller crusher according to claim 3, characterized in that: The filter cartridge (23) is provided with at least one set of rollers (27) on one of the tracks (24), and a chain (26) is provided on the other track (24). A driving motor (21) is sleeved on the chain (26), and an output shaft of the driving motor (21) drives the chain (26) to drive the filter cartridge (23) to rotate on the rollers (27).

5. The roller crusher according to claim 3, characterized in that: A discharge guide plate (22) is provided below the filter cylinder (23), and one side of the discharge guide plate (22) extends to one side of the support frame (1) and is connected to the support frame (1).

6. The roller crusher according to claim 3, characterized in that: The filter cylinder (23) is provided with a baffle (25) on the other side of the discharge guide plate (22) to prevent material from splashing.

7. The roller crusher according to claim 3, characterized in that: The inner side of the filter cylinder (23) is provided with a grinding set (4), which is kept at a fixed distance from the filter cylinder (23) and is used for secondary grinding of materials.

8. The roller crusher according to claim 7, characterized in that: The grinding kit (4) comprises a grinding cylinder (46), an inner cavity (43) is provided in the middle of the grinding cylinder (46), a fixing frame (44) is installed in the inner cavity (43), and a support rod (41) is provided in the middle of the fixing frame (44) for supporting the grinding cylinder (46).

9. The roller crusher according to claim 8, characterized in that: One end of the grinding cylinder (46) is provided with one or more positioning holes (45), and the positioning holes (45) are sleeved on the outside of the fixing frame (44).

10. The roller crusher according to claim 8, characterized in that: Grinding blocks (42) arranged in a circular array are provided on the outside of the grinding cylinder (46), and a distance is maintained between the grinding blocks (42) and the filter cylinder (23), and the distance is used to accommodate the crushed material.

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