Fresh material crusher

Abstract

The utility model discloses a fresh material crusher, which relates to the technical field of crushers and comprises a crushing cavity and an air inducing mechanism. A rotating shaft is rotationally connected into the crushing cavity; a plurality of movable cutter groups are arranged on the rotating shaft, and fixed cutter groups matched with the movable cutter groups are arranged on the inner wall of the crushing cavity; the movable cutter set comprises a first movable cutter and a second movable cutter, the first movable cutter is provided with a bent part, the bent part is bent in the material conveying direction, and the second movable cutter is in a plate shape. The fixed cutter set comprises a plurality of fixed cutters arranged in the circumferential direction of the rotating shaft at intervals. The air inducing mechanism is matched with the crushing cavity; according to the utility model, the bending part realizes effective conveying of heavy materials such as wet materials and the like, so that the fresh material crusher has higher crushing efficiency; the fixed cutters arranged at intervals can continuously exert the capability of rebounding materials, the fresh material pulverizer can fully pulverize heavy materials with high viscosity, the air inducing mechanism can convey the materials outwards, accumulation and retention of the materials are avoided, and the pulverizing efficiency of the fresh material pulverizer is improved.

Description

Technical Field

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

[0002] In the prior art, when a grinder processes wet materials and other materials with high viscosity, due to the high water content and overall weight of the materials, it is difficult to push the wet materials by relying solely on the wind force generated by the fan used in conjunction with the grinder, and it is impossible to effectively transport the wet materials, resulting in the accumulation and retention of wet materials in the grinder, which reduces the grinder's grinding effect and efficiency.

[0003] Therefore, how to make the grinder have higher crushing efficiency and more sufficient crushing effect when processing wet materials and other materials with high viscosity and heavy weight has become a technical problem that technicians in this field urgently need to solve. Utility Model Content

[0004] The purpose of the utility model is to provide a fresh material crusher to solve the problems existing in the above-mentioned prior art, so that the crusher has higher crushing efficiency and more sufficient crushing effect when processing wet materials and other materials with high viscosity and heavy weight.

[0005] To achieve the above purpose, the present invention provides the following solutions:

[0006] The utility model provides a fresh material crusher, comprising a crushing chamber and an air induction mechanism;

[0007] A rotating shaft is rotatably connected in the crushing chamber;

[0008] The rotating shaft is provided with a plurality of moving knife groups, and the inner wall of the crushing chamber is provided with a fixed knife group matched with the moving knife groups;

[0009] The movable knife assembly includes a first movable knife, the first movable knife has a bending portion, and the bending portion is bent toward the conveying direction of the material;

[0010] a second movable knife, wherein the second movable knife is plate-shaped;

[0011] The fixed knife group includes a plurality of fixed knives arranged at intervals along the circumference of the rotating shaft;

[0012] The air inducing mechanism is arranged in cooperation with the crushing chamber, and the air inducing mechanism is arranged to avoid the movable knife group and the fixed knife group. The air inducing mechanism is used to transport materials outward.

[0013] Preferably, the first movable knife and the second movable knife are spaced apart from each other along the axial direction of the rotating shaft;

[0014] Alternatively, the first movable knife and the second movable knife are staggered along the circumference of the rotating shaft.

[0015] Preferably, the fixed knife assembly includes four fixed knives arranged at intervals along the circumference of the rotating shaft.

[0016] Preferably, the fixed blade group includes the fixed blade arranged near the feed opening of the crushing chamber;

[0017] and / or the gap between the first movable knife and the fixed knife is 1 mm to 2 mm;

[0018] And / or, the thickness of the fixed blade is 1.8 cm to 2.5 cm;

[0019] And / or, the interval between adjacent fixed knives is 30 cm to 35 cm.

[0020] Preferably, the air induction mechanism is located in the pulverizing chamber and at the discharge port of the pulverizing chamber, and the air induction mechanism includes a plurality of impellers arranged along the circumference of the rotating shaft.

[0021] Preferably, a plurality of limiting members distributed along the axial direction of the crushing chamber are provided in the crushing chamber, the limiting members are arranged along the circumference of the crushing chamber, and the limiting members extend along the radial direction of the crushing chamber.

[0022] Preferably, a plurality of partitions are provided at intervals along the axial direction of the rotating shaft, and the partitions are used to divide the crushing chamber into a plurality of crushing areas provided along the axial direction of the rotating shaft, and a plurality of the movable knife groups are provided in the crushing areas.

[0023] Preferably, the fresh material grinder comprises a driving shaft, and the partitions are arranged at intervals along the axial direction of the driving shaft;

[0024] The fresh material grinder includes a plurality of rotating shafts arranged at intervals along the circumference of the partition.

[0025] Preferably, the pulverizing chamber has a feed inlet, and a screening component for removing impurities in the material is provided at the feed inlet.

[0026] Preferably, a feed hopper is provided at the feed inlet, and a magnetic separation part is provided on the feed hopper, and the magnetic separation part is used to screen the magnetic material in the material;

[0027] And / or, a screen is provided at the feed inlet;

[0028] And / or, the feed hopper includes a feed plate arranged obliquely.

[0029] Compared with the prior art, the utility model has achieved the following technical effects:

[0030] The utility model provides a plurality of first movable blades on the rotating shaft, and the first curved blades have a bending portion, which makes the contact angle between the first movable blade and the material (which can be understood as the angle at which the first movable blade cuts into the material) change continuously during rotation, so that the material is not easy to stay on the first movable blade. This dynamic contact reduces the possibility of the material adhering to the first movable blade, improves the fluidity and conveying efficiency of the material, and improves the ability of the movable blade group to convey materials such as wet materials; at the same time, the bending portion enables the first movable blade to generate a thrust along the bending direction, that is, toward the material conveying direction, when rotating with the rotating shaft, so that the material, such as wet materials, can move more smoothly along the bending portion toward the material conveying direction, avoiding the problem of material retention or accumulation that may occur when using straight blades to convey materials; that is, the utility model realizes the effective conveying of heavy materials such as wet materials by arranging the bending portion on the first movable blade, avoids the accumulation and retention of materials in the crushing chamber, so that the fresh material crusher can effectively crush heavy materials, thereby improving the crushing efficiency of the fresh material crusher; the second movable blade strengthens the crushing effect of the movable blade group on the material;

[0031] It should be noted that although the bent portion makes it difficult for the material to stay on the first movable blade and can push the material in the material conveying direction, when crushing wet materials and other viscous materials, the material may still stay in the bent portion or other areas of the crushing chamber, resulting in accumulation and retention of the material in the crushing chamber, reducing the crushing effect and crushing efficiency of the fresh material crusher;

[0032] In order to avoid this problem, the utility model provides a plurality of fixed knives on the inner wall of the crushing chamber, and the fixed knives are arranged at intervals along the circumference of the rotating shaft, which is equivalent to dividing the crushing chamber into a plurality of dispersed cutting and crushing areas, so that the material will not be concentrated and accumulated in a local part of the crushing chamber, or accumulated on the surface of the fixed knives, so that the fixed knives can continue to exert their ability of rebounding the material, that is, rebounding the material to the first movable knife, thereby enhancing the crushing effect of the material; at the same time, compared with the toothed disc in the crusher in the prior art, the interval between adjacent fixed knives makes the contact area between the fixed knives and the material smaller, and the material is less likely to accumulate on the surface of the fixed knives, and the fixed knives can continue to exert their ability of rebounding the material and crushing the material; through the combination of the fixed knives and the first movable knife, multi-angle cutting of the material is achieved, so that the fresh material crusher can fully crush heavy materials with higher viscosity, thereby improving the crushing effect of the fresh material crusher; the wind force generated by the air induced mechanism can drive the material to be transported outward, further improving the ability of the fresh material crusher to transport wet materials and other materials with higher viscosity, avoiding the retention and accumulation of materials, and improving the crushing efficiency of the fresh material crusher. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 It is a structural diagram of a fresh material crusher;

[0035] Figure 2 Schematic diagram of the structure of the separator;

[0036] Figure 3 Schematic diagram of the distribution of the first movable knife and the second movable knife on the rotating shaft;

[0037] Figure 4 Schematic diagram of the structure of the second movable knife;

[0038] Among them, 1. Crushing barrel; 2. Driving device; 3. Transmission belt; 4. Bracket; 5. Feed hopper; 6. Feed plate; 7. Drive shaft; 8. Separator; 9. Impeller; 10. Rotating shaft; 11. First movable knife; 12. Second movable knife. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0041] like Figures 1 to 4 As shown, the utility model discloses a fresh material crusher, including a crushing chamber and an air induction mechanism. A rotating shaft 10 is rotatably connected to the crushing chamber. The rotating shaft 10 is provided with a plurality of movable blade groups, and the inner wall of the crushing chamber is provided with a fixed blade group that cooperates with the movable blade group. The movable blade group includes a first movable blade 11, which has a bent portion that bends in the direction of material conveying. The movable blade group also includes a second movable blade 12, which is plate-shaped, i.e., a straight blade. The fixed blade group includes a plurality of fixed blades arranged at intervals along the circumference of the rotating shaft 10. The air induction mechanism is provided in conjunction with the crushing chamber, and the air induction mechanism is arranged to avoid the movable blade group and the fixed blade group. The air induction mechanism is used to convey the material outward.

[0042] The utility model is provided with a plurality of first movable knives 11 on the rotating shaft 10. The first curved knives have a bending portion. The bending portion makes the contact angle between the first movable knife 11 and the material (which can be understood as the angle at which the first movable knife 11 cuts into the material) constantly change during rotation, and the material is not easy to stay on the first movable knife 11. This dynamic contact reduces the possibility of the material adhering to the first movable knife 11, improves the fluidity and conveying efficiency of the material, and improves the ability of the movable knife group to convey materials such as wet materials; at the same time, the bending portion enables the first movable knife 11 to generate a bending direction when rotating with the rotating shaft 10. The thrust is directed toward the material conveying direction, which enables materials such as wet materials to move more smoothly along the bent portion toward the material conveying direction, thereby avoiding the problem of material retention or accumulation that may occur when using straight knives to convey materials. In other words, the present invention realizes the effective conveying of heavy materials such as wet materials by providing a bent portion on the first movable knife 11, thereby avoiding the accumulation and retention of materials in the crushing chamber, so that the fresh material crusher can effectively crush heavy materials, thereby improving the crushing efficiency of the fresh material crusher; the second movable knife 12 strengthens the crushing effect of the movable knife group on the material;

[0043] It should be noted that although the bent portion makes it difficult for the material to stay on the first movable blade 11 and can push the material in the material conveying direction, when crushing wet materials and other materials with high viscosity, the material may still stay in the bent portion or other areas of the crushing chamber, resulting in accumulation and retention of the material in the crushing chamber, thereby reducing the crushing effect and crushing efficiency of the fresh material crusher;

[0044] In order to avoid this problem, the present invention is provided with a plurality of fixed knives on the inner wall of the crushing chamber, and the fixed knives are arranged at intervals along the circumference of the rotating shaft 10, which is equivalent to dividing the crushing chamber into a plurality of dispersed cutting and crushing areas, so that the material will not be concentrated and accumulated in a local part of the crushing chamber, or accumulated on the surface of the fixed knives, so that the fixed knives can continue to play their ability to rebound the material, that is, to rebound the material to the first movable knife 11, thereby enhancing the crushing effect of the material; at the same time, compared with the toothed disc in the crusher in the prior art, the intervals between adjacent fixed knives make the contact area between the fixed knives and the material smaller, and the material is less likely to accumulate on the surface of the fixed knives, and the fixed knives can continue to play their ability to rebound the material and crush the material capacity; at the same time, the bent portion on the first movable knife 11 continuously pushes the material to move, which keeps the material in a flowing state in the cavity, reduces the residence time of the material on the fixed knife, and further reduces the accumulation of the material on the surface of the fixed knife. Through the combination of the fixed knife and the first movable knife 11, multi-angle cutting of the material is achieved, so that the fresh material grinder can fully crush heavy materials with high viscosity, thereby improving the crushing effect of the fresh material grinder; the wind force generated by the induced draft mechanism can drive the material to be transported outward, further improving the ability of the fresh material grinder to transport wet materials and other materials with high viscosity, avoiding the retention and accumulation of materials, and improving the crushing efficiency of the fresh material grinder.

[0045] The crushing chamber in the present invention can be specifically cylindrical, conical or other shapes with circular cross-sections, or rectangular, elliptical or other shapes with non-circular cross-sections, and the specific shape depends on the working conditions. The movable knife group can be set along the axial direction of the rotating shaft 10, or along the circumferential direction of the rotating shaft 10, and the specific setting method depends on the working conditions. The "matching" in the matching of the fixed knife group and the movable knife group refers to the respective setting positions and arrangement methods of the designated knife group and the movable knife group. The gap between the fixed knife group and the movable knife group is appropriate, and the material can be fully cut when it contacts the movable knife group, and further crushed under the action of the fixed knife group. When the movable knife group rotates, the matching with the fixed knife group can produce shearing, tearing and other effects, so that the material is crushed more effectively; the arrangement of the fixed knife group can guide the material to the movable knife group, ensuring that the material can evenly contact the movable knife group during the crushing process. The coordinated arrangement of the induced draft mechanism with the crushing chamber means that the induced draft mechanism can function as a material conveyor; the avoidance arrangement of the induced draft mechanism with the movable and fixed blade groups means that the induced draft mechanism can function normally and does not affect the normal operation of the movable and fixed blade groups. The induced draft mechanism can be arranged outside or inside the crushing chamber as required, and the number of induced draft mechanisms depends on the operating conditions. In the present utility model, the fresh material in the "fresh material crusher" refers to wet material with a high moisture content.

[0046] like Figure 1 As shown, the crushing chamber in the present invention is arranged inside the crushing barrel 1; the crushing barrel 1 and the driving device 2 can be directly set on the ground or on the bracket 4, and the height of the crushing barrel 1 is increased by the bracket 4 to facilitate receiving the material to be crushed and outputting the material after crushing that meets the standards.

[0047] The fixed blade groups are installed on the inner wall of the crushing chamber and are spaced apart along the circumference of the rotating shaft 10. Specifically, when the cross-section of the crushing chamber is circular, the fixed blade groups are arranged along the circumference of the crushing chamber; when the cross-section of the crushing chamber is non-circular, such as rectangular, the fixed blade groups are installed on the side walls of the crushing chamber and around the rotating shaft 10. In addition, the surface of the fixed blades does not have the tooth-like grooves found on the toothed disc, making them less likely to be blocked by material accumulation.

[0048] When the material contacts the fixed blade, the fixed blade blocks the flow of the material, forcing the material to change direction in the crushing chamber, thereby preventing the material from leaving the cutting area too early, that is, from being crushed by the first movable blade 11 too early, and allowing the material to return to the cutting area and contact the first movable blade 11, so that the material has enough opportunities to be further crushed after being cut by the first movable blade 11. That is to say, when the material contacts the fixed blade, the fixed blade not only cuts and crushes the material, but also rebounds the material, rebounding it to the first movable blade 11, and the first movable blade 11 cuts the material again, thereby improving the crushing effect of the material.

[0049] However, when the fixed blade is too thick, the vibration noise of the fresh material crusher will be too loud, and the excessively thick fixed blade will increase the contact area between the material and the fixed blade, causing the material to stay on the surface of the fixed blade for too long, resulting in the material piling up on the surface of the fixed blade, preventing the material from rebounding, and reducing the material crushing effect; when the fixed blade is too thin, the fixed blade cannot provide sufficient blocking effect, and cannot rebound and crush the material. The thickness of the fixed blade in the present invention can be 1.8cm~2.5cm, specifically 2mm, which can effectively avoid the above problems, so that the material will not accumulate on the surface of the fixed blade, destroying the ability of the fixed blade to rebound the material. At the same time, when the gap between adjacent fixed blades is too large, there will be fewer fixed blades that can cooperate with the moving blade group to cut and crush the material, and the fixed blade group will not be able to achieve sufficient crushing effect on the material. When the gap between adjacent fixed blades is too small, it will increase the problem of concentrated accumulation of material, covering the surface of the fixed blade with material, and the fixed blade cannot effectively crush the material. Therefore, in order to avoid the above problems, the gap between adjacent fixed blades in the present invention is set to 30cm~35cm, specifically 30cm. Specifically, four fixed knives can be provided in the present invention.

[0050] Based on the above-mentioned setting of the first movable knife 11 and the fixed knife, the utility model can realize the crushing of wet materials with a moisture content of 120% or even 200%. However, the utility model is not limited to the crushing of wet materials. If the working conditions require, it can also be used for the crushing of dry materials.

[0051] like Figure 3 、 Figure 4 As shown, compared with the curved blade, i.e., the first movable blade 11, the second movable blade 12 is usually perpendicular or nearly parallel to the movement direction of the crushed material, which enables the second movable blade 12 to directly impact and cut the material with greater force. This direct impact force can often more effectively cut, tear or break the material. Compared with the curved path of the first movable blade 11, the second movable blade 12 will produce a shorter and more effective cutting action during the cutting process, which enables the second movable blade 12 to apply more cutting force to the material per unit time, thereby improving the crushing efficiency.

[0052] Therefore, according to needs, the quantity ratio and distribution of the first movable knife 11 and the second movable knife 12 can be flexibly adjusted. For example, the first movable knife 11 and the second movable knife 12 can be arranged at intervals along the axial direction of the rotating shaft 10, so that the material can be processed layer by layer in the crushing chamber as the rotating shaft 10 rotates. For example, it is first transported and cut by the first movable knife 11, and then cut and crushed by the second movable knife 12; or, the first movable knife 11 and the second movable knife 12 are staggered along the circumference of the rotating shaft 10, so that the material will be processed by the first movable knife 11 and the second movable knife 12 in each rotation of the rotating shaft 10, and the material can be crushed more evenly and faster.

[0053] In the present invention, there are four fixed blades, which are arranged along the circumference of the crushing chamber. In the present invention, the gap between the first movable blade 11 and the fixed blade, and the gap between the second movable blade 12 and the fixed blade are both 1mm to 2mm, and can be specifically 1mm; this ensures the particle size and uniformity of the material crushing, and avoids the generation of large heat during the material crushing process, which may cause damage to the fixed blade group and the movable blade group, as well as deterioration of temperature-sensitive materials. Figure 4 As shown, one side of the first movable knife 11 and one side of the second movable knife 12 in the present invention are provided with cutting edges, and the other side is provided with cutting serrations, that is, the first movable knife 11 and the second movable knife 12 in the present invention crush the material by cutting and friction.

[0054] The fixed knife group in the present invention includes a fixed knife arranged near the feed port, so that the material can be cut and crushed by the fixed knife after entering the crushing chamber from the feed port, avoiding the problem that the material cannot be cut by the fixed knife until it is transported a certain distance in the crushing chamber due to the lack of a fixed knife near the feed port, thereby increasing the probability of material accumulation and blockage.

[0055] When the air induction mechanism in the present invention is located outside the grinding chamber, the air induction mechanism can be a fan or an induced draft blower; when the air induction mechanism is located inside the grinding chamber, the air induction mechanism can be a plurality of fan blade groups sleeved on the rotating shaft 10 and capable of rotating with the rotating shaft 10. The fan blade groups can be arranged in multiple numbers along the axial direction of the rotating shaft 10 as needed. Figure 2 As shown, the present invention arranges an air induction mechanism at the discharge port of the pulverizing chamber. The air induction mechanism includes an impeller 9 mounted on a rotating shaft 10. The impeller 9 includes a plurality of blades arranged along the circumference of the rotating shaft 10. The ends of the blades away from the rotating shaft 10 abut against the inner wall of the pulverizing chamber. This allows the impeller 9 to generate wind force to transport the material outward when rotating with the rotating shaft 10, and also to scrape the material, thereby preventing the material from adhering to the inner wall of the pulverizing chamber and clogging the material outlet. In addition, the impeller 9 not only transports the material but also removes the moisture in the wet material, thereby preventing the moisture from accumulating in the pulverizing chamber, resulting in a large rotational resistance of the movable cutter group and an inability to effectively cut and pulverize the subsequent material. Moreover, in the present invention, there is a gap between the blade surface of the impeller 9 and the rotating shaft 10, which prevents the wet material and other sticky materials from accumulating between the rotating shaft 10 and the impeller 9, causing the impeller 9 to be unable to rotate smoothly and push the material outward.

[0056] The present invention provides a plurality of limit members distributed along the axial direction of the crushing chamber in the crushing chamber. The limit members are arranged along the circumference of the crushing chamber, and the limit members extend along the radial direction of the crushing chamber. The limit members can specifically be an annular protrusion or a limit block arranged inside the crushing chamber. The thickness of the annular protrusion matches the required particle size of the material. By adjusting the thickness of the limit member, the gap between the limit member and the moving knife group and / or the gap between the limit member and the impeller 9 can be changed. This means that materials that do not meet the crushing standards cannot pass through the gap between the limit member and the moving knife group and / or the gap between the limit member and the impeller 9, but need to continue to be crushed in the crushing chamber until the material crushing meets the standards. This ensures the uniformity and strength of the material crushing and improves the effect of the material crushing.

[0057] The present invention includes a plurality of partitions 8 spaced axially along the rotating shaft 10. The partitions 8 serve to divide the pulverizing chamber into a plurality of pulverizing zones arranged axially along the rotating shaft 10. Each pulverizing zone is provided with a plurality of moving blade groups. The partitions 8 may be specifically partition plates or partition blocks. The number of moving blade groups in each pulverizing zone may be the same, or the number of moving blade groups within each pulverizing zone may increase along the direction of material transport. The placement of the partitions 8 ensures that, after entering the pulverizing chamber, the material must pass through each pulverizing zone one by one before being discharged, preventing unpulverized material from being discharged together with the pulverized material. For example, two first movable knives 11 and two second movable knives 12 can be set between two adjacent partitions 8, and the interval between two adjacent second partitions 8 can be specifically 12 cm. The interval between the first movable knife 11 and the second movable knife 12 between two adjacent partitions 8, or the first movable knife 11 and the second movable knife 12, or the second movable knife 12 and the second movable knife 12 is 3 cm; however, the distance between two adjacent partitions 8, and the spacing between adjacent tools located between the two partitions 8, i.e., the first movable knife 11 and the first movable knife 11, the second movable knife 12 and the second movable knife 12, and the first movable knife 11 and the second movable knife 12 are not limited to the above values, and can be flexibly adjusted according to the working conditions. However, it is necessary to ensure that the fixed knife group and the movable knife group can smoothly play the crushing effect, and the material can be transported by the wind force generated by the induced draft mechanism, that is, to ensure the crushing effect and crushing efficiency of the fresh material crusher.

[0058] When the fresh material grinder is provided with multiple rotating shafts 10, the multiple rotating shafts 10 can be connected to the corresponding driving device 2 to realize independent driving of each rotating shaft 10. It is also possible to drive multiple rotating shafts 10 to rotate simultaneously through one driving device 2. Figure 2As shown, the fresh material grinder of the present invention includes a drive shaft 7, one end of which extends out of a grinding chamber and is connected to the output end of a drive unit 2. A partition 8 is provided axially along the drive shaft 7 at intervals. The fresh material grinder also includes a plurality of rotating shafts 10 circumferentially spaced along the partition 8. The partition 8 can be a partition plate provided on the drive shaft 7, which can be fixed to the drive shaft 7. The rotating shaft 10 and the partition plate can be fixedly connected. Thus, when the drive unit 2 drives the drive shaft 7 to rotate, the drive shaft 7, through the partition plate, drives the multiple rotating shafts 10 passing through the partition plate to rotate, thereby achieving a "one-to-many" effect, reducing the purchase of the drive unit 2 and lowering the manufacturing and maintenance costs of the fresh material grinder. Similarly, depending on the number of rotating shafts 10, the induced draft mechanism has different settings: when the induced draft mechanism is an impeller 9 and there are multiple rotating shafts 10, the impeller 9 can be mounted on the drive shaft 7, and the impeller 9 must be set to avoid the rotating shaft 10, the movable knife group, and the fixed knife group. Alternatively, the impeller 9 can also be mounted on the rotating shaft 10, but it must be noted that the impellers 9 on each rotating shaft 10 must not interfere with each other and must not affect the normal functions of other structures; when the induced draft mechanism is an impeller 9, there is only one rotating shaft 10, and no drive shaft 7 is provided, the impeller 9 is mounted on the rotating shaft 10, and is set to avoid the movable knife group and the fixed knife group.

[0059] The first movable blade 11 and the second movable blade 12 can be fixed on the rotating shaft 10 according to working conditions, or can be movably connected to the rotating shaft 10 , that is, the first movable blade 11 and the second movable blade 12 can both rotate on the rotating shaft 10 .

[0060] The grinding chamber of the utility model has a feed port, and a screening component for removing impurities in the material is provided at the feed port. Figure 1 As shown, the present invention is provided with a feed hopper 5 at the feed inlet of the crushing chamber. The feed hopper 5 is provided with a magnetic separation section, which is used to screen magnetic materials in the material. The magnetic separation section can specifically be a magnet layer coated on the feed hopper 5, or a feed plate 6 made of a magnet layer. The magnetic separation section can absorb magnetic materials such as iron, nickel, cobalt, and their alloys, thereby screening out magnetic materials that may be contained in the material, preventing magnetic materials from damaging the fixed blade group or the movable blade group, and at the same time preventing magnetic materials from contaminating the material, thereby ensuring the purity of the material crushing. And / or, the feed hopper 5 includes an inclined feed plate 6, which allows the material to slide naturally along the feed plate 6 into the crushing chamber under the action of its own weight, reducing the probability of material accumulation at the feed inlet and allowing the material to flow more smoothly. And / or, a screen is provided at the feed inlet; the screen can pre-remove and intercept impurities in the material, thereby ensuring the purity of the material crushing.

[0061] like Figure 1As shown, the utility model is provided with a transmission belt 3 between the output shaft of the driving device 2 and the driving shaft 7, and a belt cover is provided on the outside of the transmission belt 3. The belt cover separates the belt from the outside world, reduces the noise generated during the operation of the belt, and prevents dust and impurities from entering the transmission belt 3. The transmission belt 3 can be specifically a V-belt (that is, the cross-section of the belt is triangular), and the V-shaped interface design of the V-belt enables the transmission belt 3 to fit tightly into the V-groove of the pulley, providing a good friction contact area, so that the transmission belt 3 can effectively transmit power, reduce slippage, provide relatively uniform load distribution, and reduce the risk of overload of the driving device 2.

[0062] There are multiple technical solutions in this utility model, but there is no situation where contrary technical inspiration is given.

[0063] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A fresh material crusher, characterized in that: It includes a crushing chamber and an air induction mechanism; A rotating shaft is rotatably connected in the crushing chamber; The rotating shaft is provided with a plurality of moving knife groups, and the inner wall of the crushing chamber is provided with a fixed knife group matched with the moving knife groups; The movable knife assembly includes a first movable knife, the first movable knife has a bending portion, and the bending portion is bent toward the conveying direction of the material; a second movable knife, wherein the second movable knife is plate-shaped; The fixed knife group includes a plurality of fixed knives arranged at intervals along the circumference of the rotating shaft; The air inducing mechanism is arranged in cooperation with the crushing chamber, and the air inducing mechanism is arranged to avoid the movable knife group and the fixed knife group. The air inducing mechanism is used to transport materials outward.

2. The fresh material crusher according to claim 1, characterized in that: The first movable knife and the second movable knife are spaced apart from each other along the axial direction of the rotating shaft; Alternatively, the first movable knife and the second movable knife are staggered along the circumference of the rotating shaft.

3. The fresh material crusher according to claim 1, characterized in that: The fixed knife group includes four fixed knives arranged at intervals along the circumference of the rotating shaft.

4. The fresh material crusher according to claim 1, characterized in that: The fixed blade group includes the fixed blade arranged near the feed opening of the crushing chamber; and / or the gap between the first movable knife and the fixed knife is 1 mm to 2 mm; And / or, the thickness of the fixed blade is 1.8 cm to 2.5 cm; And / or, the interval between adjacent fixed knives is 30 cm to 35 cm.

5. The fresh material crusher according to claim 1, characterized in that: The air induction mechanism is located in the pulverizing chamber and at the discharge port of the pulverizing chamber. The air induction mechanism includes a plurality of impellers arranged along the circumference of the rotating shaft.

6. The fresh material crusher according to claim 1, characterized in that: A plurality of limiting members distributed along the axial direction of the crushing chamber are provided in the crushing chamber. The limiting members are arranged along the circumference of the crushing chamber and extend along the radial direction of the crushing chamber.

7. The fresh material crusher according to claim 1, characterized in that: A plurality of partitions are provided at intervals along the axial direction of the rotating shaft. The partitions are used to divide the crushing chamber into a plurality of crushing areas provided along the axial direction of the rotating shaft. A plurality of the movable knife groups are provided in the crushing areas.

8. The fresh material crusher according to claim 7, characterized in that: The fresh material grinder comprises a driving shaft, and the partitions are arranged at intervals along the axial direction of the driving shaft; The fresh material grinder includes a plurality of rotating shafts arranged at intervals along the circumference of the partition.

9. The fresh material crusher according to claim 1, characterized in that: The pulverizing chamber has a feed inlet, and a screening component for removing impurities in the material is provided at the feed inlet.

10. The fresh material crusher according to claim 9, characterized in that: A feed hopper is provided at the feed inlet, and a magnetic separation part is provided on the feed hopper, and the magnetic separation part is used to screen the magnetic material in the material; And / or, a screen is provided at the feed inlet; And / or, the feed hopper includes a feed plate arranged obliquely.

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