Fresh material crusher

Abstract

The invention 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, the first movable cutter is provided with a bent part, and the bent part is bent in the material conveying direction. 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 fresh material crusher, the bending part which is bent towards the material conveying direction is arranged on the first movable cutter, so that heavy materials such as wet materials and the like are effectively conveyed, and the fresh material crusher has relatively high crushing efficiency; the fixed cutters are arranged at intervals, so that the fixed cutters 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 further improved.

Description

Technical Field

[0001] The invention 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 heavy overall weight of the materials, it is difficult to push the wet materials only by relying on the wind force generated by the fan used in conjunction with the grinder, and effective transportation of the wet materials cannot be achieved, resulting in the accumulation and retention of wet materials in the grinder, reducing the grind effect and efficiency of the grinder.

[0003] Therefore, how to make the pulverizer have higher pulverizing efficiency and more sufficient pulverizing effect when processing wet materials and other materials with high viscosity and heavy weight has become a technical problem that technical personnel in this field need to solve urgently. Summary of the invention

[0004] The object of the present invention 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 object, the present invention provides the following solutions:

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

[0007] A rotating shaft is rotatably connected in the pulverizing 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 group;

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

[0011] The air induction mechanism is arranged in cooperation with the pulverizing chamber, and the air induction mechanism, the movable knife group, and the fixed knife group are all arranged to avoid each other. The air induction mechanism is used to transport materials outward.

[0012] Preferably, the movable knife assembly further comprises a second movable knife, and the second movable knife is plate-shaped;

[0013] Wherein, the first movable knife and the second movable knife are arranged at intervals along the axial direction of the rotating shaft;

[0014] Alternatively, the first movable knife and the second movable knife are arranged alternately along the circumferential direction 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 assembly includes the fixed blade arranged near the feed port 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 knife 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 limit members distributed along the axial direction of the crushing chamber are provided 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.

[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 crusher comprises a driving shaft, and the partitions are arranged at intervals along the axial direction of the driving shaft;

[0024] The fresh material crusher comprises 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 present invention has achieved the following technical effects:

[0030] The present invention arranges a plurality of first moving knives on the rotating shaft, and the first curved knives have a bending portion bent toward the material conveying direction. The bending portion makes the contact angle between the first moving knife and the material (which can be understood as the angle at which the first moving knife cuts into the material) change continuously during rotation, and the material is not easy to stay on the first moving knife. This dynamic contact reduces the possibility of the material adhering to the first moving knife, improves the fluidity and conveying efficiency of the material, and improves the ability of the moving knife group to convey materials such as wet materials; at the same time, the bending portion enables the first moving knife 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 the wet material, 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 a straight knife to convey the material; that is, the present invention realizes the effective conveying of heavy materials such as wet materials by arranging the bending portion on the first moving knife, avoids the accumulation and retention of materials in the crushing chamber, enables the fresh material crusher to effectively crush heavy materials, and improves the crushing efficiency of the fresh material crusher;

[0031] It should be noted that although the bending part makes it difficult for the material to stay on the first moving blade 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 on the bending part or other areas of the crushing chamber, resulting in accumulation and retention of materials in the crushing chamber, reducing the crushing effect and crushing efficiency of the fresh material crusher;

[0032] In order to avoid this problem, the present invention 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 materials will not be concentrated and accumulated in a 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 to rebound the materials, that is, rebound the materials to the first moving knife, thereby enhancing the crushing effect of the materials; 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 materials smaller, and the materials are less likely to accumulate on the surface of the fixed knives, and the fixed knives can continue to exert their ability to rebound and crush the materials; through the combination of the fixed knives and the first moving knives, multi-angle cutting of the materials is realized, so that the fresh material crusher can fully crush the 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 materials 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 drawings required for use in the embodiments will be briefly introduced below. 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 creative work.

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

[0035] Figure 2 is a schematic diagram of the structure of the separator;

[0036] Figure 3 is a schematic diagram of the distribution of the first moving knife and the second moving knife on the rotating shaft;

[0037] Figure 4 is a structural schematic diagram of the second moving knife;

[0038] Among them, 1. crushing barrel; 2. driving device; 3. transmission belt; 4. bracket; 5. feed hopper; 6. feed plate; 7. driving shaft; 8. partition; 9. impeller; 10. rotating shaft; 11. first moving knife; 12. second moving 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 described embodiments 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 creative work 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 embodiments.

[0041] like Figures 1 to 4 As shown, the present invention discloses a fresh material crusher, comprising a crushing chamber and an air-inducing mechanism; a rotating shaft 10 is rotatably connected in the crushing chamber; a plurality of movable knife groups are arranged on the rotating shaft 10, and a fixed knife group matched with the movable knife group is arranged on the inner wall of the crushing chamber; the movable knife group comprises a first movable knife 11, and the first movable knife 11 has a bending portion, and the bending portion is bent toward the conveying direction of the material; the fixed knife group comprises a plurality of fixed knives arranged at intervals along the circumference of the rotating shaft 10; the air-inducing mechanism is arranged in cooperation with the crushing chamber, and the air-inducing mechanism, the movable knife group and the fixed knife group are all arranged to avoid each other, and the air-inducing mechanism is used to convey the material outward.

[0042] The present invention arranges a plurality of first moving knives 11 on the rotating shaft 10, and the first curved knives have a bending portion, and the bending portion makes the contact angle between the first moving knife 11 and the material (which can be understood as the angle at which the first moving knife 11 cuts into the material) change continuously during rotation, and the material is not easy to stay on the first moving knife 11. This dynamic contact reduces the possibility of the material adhering to the first moving knife 11, improves the fluidity and conveying efficiency of the material, and improves the ability of the moving knife group to convey materials such as wet materials; at the same time, the bending portion enables the first moving knife 11 to generate a thrust along the bending direction, that is, toward the material conveying direction when rotating with the rotating shaft 10, so that the material, such as the wet material, 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 conveying materials using straight knives; that is, the present invention realizes the effective conveying of heavy materials such as wet materials by arranging the bending portion on the first moving knife 11, avoids the accumulation and retention of materials in the crushing chamber, so that the fresh material crusher can effectively crush heavy materials, and improves the crushing efficiency of the fresh material crusher;

[0043] It should be noted that, although the bending 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 on the bending 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;

[0044] In order to avoid this problem, the present invention 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 10, which is equivalent to dividing the crushing chamber into a plurality of dispersed cutting and crushing areas, so that the materials will not be concentrated and accumulated in a 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 materials, that is, rebound the materials to the first moving knife 11, thereby enhancing the crushing effect of the materials; 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 materials smaller, and the materials are less likely to accumulate on the surface of the fixed knives, and the fixed knives can continue to play their ability to rebound the materials and crush the materials. force; 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 crusher can fully crush heavy materials with high viscosity, thereby improving the crushing effect of the fresh material crusher; 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 crusher 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 crusher.

[0045] The crushing chamber in the present invention can be a cylindrical, conical or other shape with a circular cross section, or a rectangular, elliptical or other shape with a non-circular cross section, and the specific shape depends on the working conditions. The movable knife group can be arranged along the axial direction of the rotating shaft 10, or along the circumferential direction of the rotating shaft 10, and the specific arrangement method depends on the working conditions. The "cooperation" in the coordination between 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 coordination 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 induced draft mechanism is arranged in coordination with the crushing chamber, which means that the induced draft mechanism can play a role in conveying materials; the induced draft mechanism and the movable blade group and the fixed blade group are arranged in a avoidance manner, which means that the induced draft mechanism can not only play a normal role, but also the arrangement of the induced draft mechanism will not affect the normal operation of the movable blade group and the fixed blade group. The induced draft mechanism can be arranged outside the crushing chamber or inside the crushing chamber as required, and the number of induced draft mechanisms depends on the working conditions. The fresh material in the "fresh material crusher" of the present invention 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 arranged on the ground, and can also be arranged 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 knife group is arranged on the inner wall of the crushing chamber and is arranged at intervals along the circumference of the rotating shaft 10. Specifically, when the cross section of the crushing chamber is circular, the fixed knife group is arranged along the circumference of the crushing chamber; when the cross section of the crushing chamber is non-circular such as rectangular, the fixed knife group is arranged on the side wall of the crushing chamber and is arranged around the rotating shaft 10. In addition, the surface of the fixed knife does not have the tooth-like grooves on the toothed disc, and is less likely to be blocked by material accumulation.

[0048] When the material contacts the fixed knife, the fixed knife blocks the flow of the material, so that the material is forced to change direction in the crushing chamber, avoiding the material from leaving the cutting area too early, that is, from being crushed by the first movable knife 11 too early, and making the material return to the cutting area and contact the first movable knife 11, so that the material has enough opportunities to be further crushed after being cut by the first movable knife 11. That is to say, when the material contacts the fixed knife, the fixed knife not only cuts and crushes the material, but also rebounds the material, rebounds the material to the first movable knife 11, and the first movable knife 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 too 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, causing the material to accumulate on the surface of the fixed blade, and the material cannot rebound, reducing the crushing effect of the material; 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 have a 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 materials, covering the surface of the fixed blade with materials, and the fixed blade cannot effectively crush the material; therefore, in order to avoid the above problems, the present invention sets the gap between adjacent fixed blades 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 present invention can realize the crushing of wet materials with a moisture content of 120% or even 200%, but the present invention 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, the movable knife group in the present invention also includes a second movable knife 12, which is in the shape of a plate, that is, the second movable knife 12 is a straight knife. Compared with the curved knife, that is, the first movable knife 11, the second movable knife 12 is usually perpendicular or nearly parallel to the moving direction of the crushed material, which enables the second movable knife 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 knife 11, the second movable knife 12 will produce a shorter and more effective cutting action during the cutting process, which enables the second movable knife 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 knives, which are arranged along the circumference of the crushing chamber. In the present invention, the gap between the first moving knife 11 and the fixed knife, and the gap between the second moving knife 12 and the fixed knife 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 leads to damage to the fixed knife group and the moving knife group, and 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 teeth, 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 fixed knife not being arranged 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 pulverizing chamber, the air induction mechanism can be specifically a fan or an induced draft machine; when the air induction mechanism is located inside the pulverizing chamber, the air induction mechanism can be specifically a plurality of fan blade groups sleeved on the rotating shaft 10 and capable of rotating with the rotating shaft 10, and a plurality of fan blade groups can be provided along the axial direction of the rotating shaft 10 as required. Figure 2 As shown, the present invention sets the induced draft mechanism at the discharge port of the crushing chamber. The induced draft mechanism includes an impeller 9 sleeved on the rotating shaft 10. The impeller 9 includes a plurality of blades arranged along the circumference of the rotating shaft 10. The end of the blade away from the rotating shaft 10 abuts against the inner wall of the crushing chamber. This enables 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 avoiding the problem that the material adheres to the inner wall of the crushing chamber and blocks the material outlet. Moreover, the impeller 9 not only plays the role of transporting the material, but also can output the moisture in the wet material, thereby avoiding the problem that the moisture accumulates in the crushing chamber, resulting in a large rotation resistance of the moving knife group and the inability to effectively cut and crush the subsequent materials. Moreover, in the present invention, there is a gap between the blade surface of the impeller 9 and the rotating shaft 10, which avoids the problem that the wet material and other sticky materials gather between the rotating shaft 10 and the impeller 9, resulting in the impeller 9 being 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 the material that does 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 needs 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 has a plurality of partitions 8 arranged at intervals along the axial direction of the rotating shaft 10. The partitions 8 are used to divide the crushing chamber into a plurality of crushing zones arranged along the axial direction of the rotating shaft 10. A plurality of moving knife groups are arranged in the crushing zones. The partitions 8 may be partition plates or partition blocks. The number of moving knife groups in each crushing zone may be the same, or the number of moving knife groups in the crushing zone may increase continuously along the conveying direction of the material. The arrangement of the partitions 8 ensures that after the material enters the crushing chamber, it must pass through each crushing zone one by one before it can be output, and the situation in which the uncrushed material and the crushed material are output together will not occur. For example, two first movable knives 11 and two second movable knives 12 can be arranged between two adjacent partitions 8, and the interval between two adjacent second partitions 8 can be specifically 12 cm, and the interval between the first movable knife 11 and the second movable knife 12, or the first movable knife 11 and the second movable knife 12, or the second movable knife 12 and the second movable knife 12 between two adjacent partitions 8 is 3 cm; however, the distance between two adjacent partitions 8, and the spacing between adjacent knives 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 exert 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 crusher 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. Alternatively, multiple rotating shafts 10 can be driven to rotate simultaneously by one driving device 2. Figure 2As shown, the fresh material crusher of the present invention includes a driving shaft 7, one end of which extends out of a crushing chamber and is connected to the output end of the driving device 2, and a partition 8 is arranged at intervals along the axial direction of the driving shaft 7; the fresh material crusher includes a plurality of rotating shafts 10 arranged at intervals along the circumferential direction of the partition 8. The partition 8 can be a partition plate arranged on the driving shaft 7, the partition plate can be fixed on the driving shaft 7, and the rotating shaft 10 and the partition plate can be fixedly connected, so that when the driving device 2 drives the driving shaft 7 to rotate, the driving shaft 7 drives the plurality of rotating shafts 10 passing through the partition plate to rotate through the partition plate, thereby achieving a "one-to-many" effect, reducing the purchase of the driving device 2, and reducing the manufacturing and maintenance costs of the fresh material crusher. 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 sleeved on the drive shaft 7, and the impeller 9 must be arranged to avoid the rotating shaft 10, the moving knife group, and the fixed knife group. Alternatively, the impeller 9 can also be sleeved 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 and there is only one rotating shaft 10, and no drive shaft 7 is provided, the impeller 9 is sleeved on the rotating shaft 10 and is arranged to avoid the moving knife group and the fixed knife group.

[0059] The first movable knife 11 and the second movable knife 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 knife 11 and the second movable knife 12 can both rotate on the rotating shaft 10 .

[0060] In the present invention, the pulverizing chamber has a feed inlet, and a screening component for removing impurities in the material is provided at the feed inlet. Figure 1 As shown, the present invention is provided with a feed hopper 5 at the feed inlet of the crushing chamber, and a magnetic separation part is provided on the feed hopper 5, and the magnetic separation part is used to screen the magnetic materials in the material; the magnetic separation part can be a magnet layer coated on the feed hopper 5, or a feed plate 6 made of a magnet layer, and the magnetic separation part can absorb magnetic materials such as iron, nickel, cobalt and their alloys, so as to screen out the magnetic materials that may be contained in the material from the material, avoid the magnetic material from damaging the fixed knife group or the moving knife group, and at the same time avoid the contamination of the material by the magnetic material, and ensure 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 to the crushing chamber under the action of its own weight, reducing the probability of material accumulation at the feed inlet, so that the material can flow more smoothly. And / or, a screen is provided at the feed inlet; the screen can remove and intercept impurities in the material in advance, and ensure the purity of the material crushing.

[0061] like Figure 1As shown, the present invention is provided with a transmission belt 3 between the output shaft of the driving device 2 and the driving shaft 7. A belt cover is provided outside 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 specifically be 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 overloading the driving device 2.

[0062] There are multiple technical solutions in the present invention, 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 used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood 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 pulverizing 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 group; 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; The fixed knife group includes a plurality of fixed knives arranged at intervals along the circumference of the rotating shaft; The air induction mechanism is arranged in cooperation with the pulverizing chamber, and the air induction mechanism, the movable knife group, and the fixed knife group are all arranged to avoid each other. The air induction mechanism is used to transport materials outward.

2. The fresh material crusher according to claim 1, characterized in that: The movable knife assembly further includes a second movable knife, and the second movable knife is in the shape of a plate; Wherein, the first movable knife and the second movable knife are arranged at intervals along the axial direction of the rotating shaft; Alternatively, the first movable knife and the second movable knife are arranged alternately along the circumferential direction 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 knife 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 stoppers distributed along the axial direction of the pulverizing chamber are arranged in the pulverizing chamber, the stoppers are arranged along the circumference of the pulverizing chamber, and the stoppers extend along the radial direction of the pulverizing chamber.

7. The fresh material crusher according to claim 1, characterized in that: A plurality of partitions are arranged 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 arranged along the axial direction of the rotating shaft, and a plurality of the movable knife groups are arranged in the crushing areas.

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