Caragana korshinskii litter crushing device

Abstract

The invention discloses a caragana korshinskii litter smashing device which comprises an extrusion cavity, a first roller body and a second roller body are arranged in the extrusion cavity, and wear-resistant materials are sprayed on the first roller body and the second roller body; the drying chamber is arranged on one side of the extrusion chamber and communicates with the extrusion chamber, and a plurality of superheated steam nozzles are arranged at the top of the drying chamber; the conveying belt is arranged in the extrusion cavity and the drying cavity, one end of the conveying belt is located below the first roller body and the second roller body, and the conveying direction of the conveying belt is perpendicular to the longitudinal axial direction of the roller shafts of the first roller body and the second roller body; the crushing chamber is arranged below the side, away from the extrusion chamber, of the drying chamber and communicates with the drying chamber, a first crushing assembly is arranged in the crushing chamber, the other end of the conveying belt is located above the first crushing assembly, and the crushing device further comprises a second crushing assembly communicating with a discharging opening of the crushing chamber. According to the device, the caragana microphylla litter can be well crushed, caragana microphylla litter powder with the target particle size is obtained, and the crushing efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of caragana korshinskii processing, and more specifically to a caragana korshinskii litter crushing device. Background Art

[0002] Caragana is a deep-rooted tree species with a relatively developed root system that is deeply planted underground. It has a strong resistance to wind and is an excellent windbreak and sand fixation plant. Due to its special growth habits, Caragana needs to be pruned regularly, otherwise it will age or even die. Therefore, Caragana needs to be pruned once every 3-5 years, and a large number of Caragana branches and leaves will be produced during the pruning. In addition, the decomposition of Caragana litter will also cause changes in soil environment and food resource conditions, and will have a significant impact on the composition and diversity distribution of soil animal communities. How to make rational use of Caragana litter has become an important topic that needs to be studied urgently. If Caragana litter is to be studied and reasonably utilized, a very important prerequisite is to crush the Caragana litter. Because Caragana branches contain high cellulose, good toughness, and great processing difficulty, a large amount of flocs will be generated during crushing, which will wrap around the main shaft and blade of the crusher, thereby affecting the crushing effect. At present, there are few crushing devices for Caragana litter on the market, and the problem of flocs generated during crushing has never been solved. Summary of the invention

[0003] The invention provides a caragana litter crushing device, which can crush the caragana litter well to obtain caragana litter powder with a target particle size.

[0004] In order to achieve these purposes and other advantages of the present invention, the present invention provides a caragana litter crushing device, comprising: An extrusion chamber is provided with a first roller and a second roller, wherein the first roller and the second roller are located at the same height and rotate in opposite directions, so that the caragana litter enters the gap between the first roller and the second roller to be flattened and thinned; A drying chamber, which is arranged at one side of the extrusion chamber and communicated with the extrusion chamber, and a plurality of superheated steam nozzles are arranged on the top of the drying chamber; A conveyor belt is arranged in the extrusion chamber and the drying chamber, one end of the conveyor belt is located below the first roller body and the second roller body, and the flattened and thinned caragana litter falls onto the conveyor belt in sequence and is conveyed to the drying chamber for drying, wherein the conveying direction of the conveyor belt is perpendicular to the longitudinal axis of the roller shafts of the first roller body and the second roller body; A crushing chamber is arranged below a side of the drying chamber away from the extrusion chamber and communicated with the drying chamber. A first crushing assembly is arranged in the crushing chamber, and the other end of the conveyor belt is just located above the first crushing assembly to crush the caragana litter; The first roller body and the second roller body are sprayed with wear-resistant materials, including: high chromium cast iron powder: 80%-85%; tungsten carbide particles: 8%-13%; nickel-based alloy powder: 5%-8%; rare earth element oxide powder: 0.2%-0.8%; borosilicate element powder: 0.5%-1%, and the powder particle size is between 40-50μm; flame thermal spraying is first performed at a rate of 300-350mm / s, and then the first oxyacetylene flame remelting is performed at a speed of 50-60mm / min, and then the second oxyacetylene flame remelting is performed at a speed of 45-50mm / min.

[0005] Preferably, the Caragana litter pulverizing device further comprises a second pulverizing assembly, which is connected to the discharge port of the pulverizing chamber, and the second pulverizing assembly specifically comprises: A rotating shaft is vertically arranged, and an upper end thereof is fixedly connected to a driving shaft of a first driving mechanism; wherein a plurality of first cylindrical cone cutters are arranged on the surface of the rotating shaft at equal intervals in the circumferential direction and in the vertical direction; A rotating drum, whose rotation center axis is in the vertical direction, the bottom plate of the rotating drum is fixedly connected to the driving shaft of a second driving mechanism, and a plurality of second cylindrical cone cutters are arranged on the inner surface of the rotating drum at equal intervals in the circumferential direction and in the vertical direction; wherein the rotating shaft is inserted into the rotating drum, and the second cylindrical cone cutters and the first cylindrical cone cutters are staggered in the circumferential direction and in the vertical direction, the sum of the lengths of the first cylindrical cone cutter and the second cylindrical cone cutter is greater than the distance between the inner surface of the rotating drum and the outer surface of the rotating shaft, and a plurality of sieve holes are arranged on the lower end of the drum wall and the bottom plate of the rotating drum; A fixed cylinder, which is arranged outside the rotating cylinder, so that the rotating cylinder and the rotating shaft are both located inside the fixed cylinder, and the driving shaft of the second driving mechanism passes through the bottom plate of the fixed cylinder and is fixedly connected to the bottom plate of the rotating cylinder; The rotation direction of the rotating shaft is opposite to that of the rotating drum, and the coarsely crushed caragana litter coming out of the first crushing assembly enters the rotating drum for fine crushing.

[0006] Preferably, in the caragana litter crushing device, the material inlet of the second crushing component is specifically configured as follows: an annular feed opening is extended upwardly from the cylinder wall of the fixed cylinder, the upper surface of the annular feed opening is inclined inwardly, and an annular groove is provided on the lower surface of the annular feed opening, and the upper end of the rotating cylinder is inserted into the annular groove.

[0007] Preferably, the caragana litter crushing device also includes a square support frame, the fixed cylinder and the second driving mechanism are both fixedly arranged on the bottom plate of the square support frame, the first driving mechanism is fixedly arranged on the top plate of the square support frame, and the driving shaft of the first driving mechanism passes through the top plate and is fixedly connected to the rotating shaft.

[0008] Preferably, in the Caragana korshinskii litter crushing device, a plurality of superheated steam nozzles are arranged on the top of the drying chamber, specifically comprising: a cavity layer is arranged on the top of the drying chamber, a superheated steam inlet is arranged on the top plate of the cavity layer, the superheated steam inlet is connected to a superheated steam generator, and a plurality of superheated steam nozzles are arranged at equal intervals on the bottom plate of the cavity layer.

[0009] Preferably, in the caragana litter crushing device, the width of the conveyor belt is greater than the length of the first roller body and the second roller body; the first crushing assembly is a hammer mill, the longitudinal axis of its drive shaft is perpendicular to the conveying direction of the conveyor belt, and the connection between the crushing chamber and the drying chamber is an inverted cone structure.

[0010] Preferably, in the caragana litter crushing device, one side of the hammer of the hammer crusher is in an arc-shaped sawtooth shape.

[0011] Preferably, in the Caragana litter crushing device, the extrusion chamber, the drying chamber and the crushing chamber are an integrated structure.

[0012] Preferably, in the caragana litter crushing device, the driving shafts of the first roller and the second roller, the driving wheel and the driven wheel of the conveyor belt are rotatably arranged on the two side walls of the extrusion chamber and the drying chamber, and the driving mechanism for driving the first roller, the driving mechanism for driving the second roller and the driving mechanism for driving the driving wheel of the conveyor belt are all arranged outside the extrusion chamber and the drying chamber.

[0013] Preferably, in the Caragana korshinskii litter pulverizing device, the rare earth element oxide powder is any one of cerium oxide powder and lanthanum oxide powder, or a combination of the two oxide powders.

[0014] The present invention has at least the following beneficial effects: First, since the present invention is provided with an extrusion chamber and a drying chamber, before crushing the caragana litter, the caragana litter is firstly extruded to be flattened and thinned, and the flattened and thinned caragana litter falls onto the conveyor belt, and is dried in the process of conveying the caragana litter to the crushing chamber by the conveyor belt. The flattened and thinned caragana litter is more easily dried by high-temperature superheated steam, and the dried caragana litter will also become more brittle, and it will be relatively easier to crush it at this time.

[0015] Second, since the crushing chamber is located below the side of the drying chamber away from the extrusion chamber and is connected to the drying chamber, and since the drying chamber and the crushing chamber are an integrated structure, the high temperature in the drying chamber will also be transmitted to the crushing chamber. In this way, during the process of crushing the caragana litter, the caragana litter will continue to be heated and dried, so that the caragana litter is completely dried and becomes easier to crush.

[0016] Third, since the caragana litter will only be crushed into filamentous products after being crushed by the first crushing component, and will not be crushed into products with smaller particle size that are almost powdery, a second crushing component is also set. The second crushing component includes a rotating shaft, a rotating drum, and a fixed drum, and the second cylindrical cone cutter and the first cylindrical cone cutter are staggered in the circumferential and vertical directions. The rotation direction of the rotating shaft is opposite to the rotation direction of the rotating drum. When the coarse crushed caragana litter coming out of the first crushing component enters the rotating drum, the coarse crushed material can be finely crushed to form a powder. In addition, since a plurality of sieve holes are arranged on the lower end of the drum wall and the bottom plate of the rotating drum, during the fine crushing process, due to the action of centrifugal force, if the crushed material reaches the particle size of the sieve holes, it will directly enter the fixed drum through the sieve holes.

[0017] Fourth, spraying the wear-resistant material on the first roller body and the second roller body can improve the wear resistance and optimize the extrusion effect. Spraying and remelting at a slower speed can solve the problem that the sprayed wear-resistant material is unstable and easy to crack due to the high content of high-chromium cast iron powder and the low content of other materials.

[0018] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the side structure of the caragana litter crushing device of the present invention; Figure 2 It is a side structural schematic diagram of the second crushing assembly of the caragana litter crushing device of the present invention; Figure 3 It is a schematic diagram of the top view of the structure of the rotating shaft and the rotating drum in the second pulverizing assembly of the caragana litter pulverizing device of the present invention; Figure 4 It is a schematic diagram of the side structure of the hammer piece in the first crushing assembly of the caragana litter crushing device of the present invention; Figure 5 It is a side structural schematic diagram of the first cylindrical cone cutter and the second cylindrical cone cutter arranged on the rotating shaft and the rotating drum in the second crushing assembly of the caragana litter crushing device of the present invention. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0021] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0022] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials can be obtained from commercial sources unless otherwise specified; in the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, set, or detachably connected, set, or connected and set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in specific circumstances. The orientation or position relationship indicated by the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0023] like Figures 1 to 5As shown, an embodiment of the present invention provides a caragana litter crushing device, comprising: an extrusion chamber 1, in which a first roller 101 and a second roller 102 are arranged, the first roller 101 and the second roller 102 are located at the same height and rotate in opposite directions, so that the caragana litter enters the gap between the first roller 101 and the second roller 102 to be flattened and thinned; a drying chamber 2, which is arranged on one side of the extrusion chamber 1 and is connected to the extrusion chamber 1, and a plurality of superheated steam nozzles 202 are arranged on the top of the drying chamber 2; a conveyor belt 4, which is arranged in the extrusion chamber 1 and the drying chamber 2, one end of the conveyor belt 4 is located below the first roller 101 and the second roller 102, and the flattened and thinned caragana litter falls onto the conveyor belt 4 in turn and is conveyed to the drying chamber 2 for drying, wherein the conveying direction of the conveyor belt 4 is the same as that of the first roller 101 and the second roller 102. The longitudinal axis of the roller is perpendicular to the longitudinal axis of the roller; a crushing chamber 3 is arranged at the lower side of the drying chamber 2 away from the extrusion chamber 1 and is connected to the drying chamber 2. A first crushing assembly 301 is arranged in the crushing chamber 3, and the other end of the conveyor belt 4 is just located above the first crushing assembly 301 to crush the caragana litter; wherein the first roller body and the second roller body are sprayed with wear-resistant materials, including: high chromium cast iron powder: 80%-85%; tungsten carbide particles: 8%-13%; nickel-based alloy powder: 5%-8%; rare earth element oxide powder: 0.2%-0.8%; borosilicate element powder: 0.5%-1%, and the powder particle size is between 40-50μm; flame thermal spraying is first performed at a rate of 300-350mm / s, and then the first oxyacetylene flame remelting is performed at a speed of 50-60mm / min, and then the second oxyacetylene flame remelting is performed at a speed of 45-50mm / min. The rare earth element oxide powder is any one of cerium oxide powder and lanthanum oxide powder, or a combination of the two oxide powders.

[0024] In the above embodiment, the caragana litter can be caragana branches, caragana roots or caragana leaves. If the caragana branches or caragana roots are relatively long, the caragana branches or roots need to be cut. A first roller body 101 and a second roller body 102 are arranged in the extrusion chamber 1. The gap between the first roller body 101 and the second roller body 102 can be specifically set according to the thickness of the caragana branches or caragana roots to be flattened. For example, it can be set to 0.5~2mm, or it can be set to other values. A feed port is set above the gap between the first roller body 101 and the second roller body 102. The first roller body 101 and the second roller body 102 only flatten the caragana litter and do not cut it. The drying chamber 2 is arranged on one side of the extrusion chamber 1 and is connected to the extrusion chamber 1. The extruded caragana litter can be conveyed to the drying and drying chamber for drying through the conveyor belt 4. Since the conveyor belt 4 is always in motion, the caragana litter that falls onto the conveyor belt 4 is spread out into a thin layer. Therefore, it is easy to be dried by high-temperature superheated steam during the conveying process. After the caragana litter is dried, the cellulose inside that is difficult to cut will become relatively brittle. At this time, it will be relatively easier to cut it if it is crushed. Since the crushing chamber 3 is located below the side of the drying chamber 2 away from the extrusion chamber 1, it is connected to the drying chamber 2, and since the drying chamber 2 and the crushing chamber 3 are an integrated structure, the high temperature in the drying chamber 2 will also be transmitted to the crushing chamber 3, so that in the process of crushing the caragana litter, the caragana litter will continue to be heated and dried, so that the caragana litter is completely dried and becomes easier to crush. In the specific setting, the first crushing component 301 is a hammer mill, and the longitudinal axis of its driving shaft is perpendicular to the conveying direction of the conveyor belt 4. The connection between the crushing chamber 3 and the drying chamber 2 is an inverted cone structure. With this setting, the flattened caragana litter conveyed by the conveyor belt 4 just falls into the hammer mill from above. In the specific setting of the drying chamber, a ventilation box 6 is also provided on the bottom plate of the drying chamber below the conveyor belt, and a ventilation fan 601 is provided in the ventilation box 6 to draw out the hot and humid air in the drying chamber and speed up the drying speed. A temperature sensor can also be provided in the drying chamber to measure the temperature in the drying chamber so as to better adjust the temperature of the superheated steam ejected from the superheated steam nozzle.

[0025] It should be noted that the first roller body and the second roller body provided in the present embodiment can not only flatten and thin the caragana litter, but also squeeze out some of the water and air in the caragana litter by extrusion. Extrusion can make the tissue structure of the caragana more compact. After being squeezed by external force, the internal fibers of the originally loose caragana branches are arranged more tightly, the volume is reduced, and after drying, it is more conducive to the subsequent crushing process. When a hammer mill is used, the pre-extruded caragana is more easily hit and torn by the hammer, which improves the crushing efficiency and reduces the energy consumption during the crushing process. In the prior art, direct crushing is usually performed. Although some technologies are crushed twice, it is also difficult to solve the problem of entanglement during crushing, which greatly affects the crushing efficiency. The present invention solves the efficiency problem. However, when ordinary rollers are used for extrusion, due to the uneven texture of the caragana litter, the pressure and friction forces on different parts of the roller surface are quite different during the extrusion process. In the long run, uneven wear of the roller surface will occur, affecting the stability of the extrusion effect, and may also cause eccentric operation of the roller, further exacerbating equipment loss. In this embodiment, after spraying the wear-resistant material on the first roller body and the second roller body, the wear resistance can be improved and the extrusion effect can be optimized. However, the spraying material is expensive and the spraying cost is very high. Among the spraying materials, high-chromium cast iron powder is relatively cheap, and the remaining materials are expensive. Therefore, this embodiment uses as much high-chromium cast iron powder as possible and uses less other materials. However, this will cause the wear-resistant material sprayed on the roller body to be unstable and easy to crack. In practice, it is found that spraying and remelting at a slower speed can solve this problem.

[0026] High chromium cast iron has high hardness and good wear resistance. The chromium content is usually between 15% and 30%. When forming a wear-resistant layer, it can effectively resist the friction and wear of caragana. Its own casting structure can provide stable wear-resistant performance support after subsequent treatment. Tungsten carbide has extremely high hardness, second only to diamond, and can significantly enhance the hardness of the wear-resistant layer. When facing hard fibers and other components in caragana, it can greatly improve the scratch resistance and wear resistance of the roller. Nickel-based alloy powder, as a bonding phase, has good high-temperature strength, corrosion resistance and tolerance to various hard particles. It can firmly bond high chromium cast iron powder and tungsten carbide particles together to form a dense and uniform wear-resistant structure, ensuring that the wear-resistant layer of the first roller and the second roller does not fall off or crack during operation, and adapts to the complex stress environment when squeezing caragana. Rare earth elements can play a role in modification and refinement, optimize the solidification structure of the alloy, make the grains of the wear-resistant layer finer and more uniform, thereby improving the overall strength, toughness and wear resistance of the wear-resistant layer, and at the same time improve the thermal fatigue performance of the material to a certain extent, and cope with the temperature changes caused by frictional heat when the first roller body and the second roller body are working.

[0027] In one specific embodiment, the Caragana litter pulverizing device further includes a second pulverizing assembly 5, which is connected to the discharge port of the pulverizing chamber 3, and the second pulverizing assembly 5 specifically includes: A rotating shaft 501 is vertically arranged, and its upper end is fixedly connected to a driving shaft of a first driving mechanism 509; wherein, on the surface of the rotating shaft 501, a plurality of first cylindrical cone cutters 505 are evenly spaced in the circumferential direction and in the vertical direction; The rotary drum 502 has a rotation center axis along the vertical direction, and the bottom plate of the rotary drum 502 is fixedly connected to the driving shaft of a second driving mechanism 510. On the inner surface of the rotary drum 502, a plurality of second cylindrical cone cutters 506 are evenly spaced in the circumferential direction and in the vertical direction; wherein the rotary shaft 501 is inserted into the rotary drum 502, and the second cylindrical cone cutters 506 and the first cylindrical cone cutters 505 are staggered in the circumferential direction and in the vertical direction, and the sum of the lengths of the first cylindrical cone cutter 505 and the second cylindrical cone cutter 506 is greater than the distance between the inner surface of the rotary drum 502 and the outer surface of the rotary shaft 501, and a plurality of sieve holes 511 are provided on the lower end of the drum wall and the bottom plate of the rotary drum 502; A fixed cylinder 503 is arranged outside the rotating cylinder 502, so that the rotating cylinder 502 and the rotating shaft 501 are both located inside the fixed cylinder 503, and the driving shaft of the second driving mechanism 510 passes through the bottom plate of the fixed cylinder 503 and is fixedly connected to the bottom plate of the rotating cylinder 502; The rotation direction of the rotating shaft 501 is opposite to that of the rotating drum 502 , and the coarsely ground caragana litter coming out of the first crushing assembly 301 enters the rotating drum 502 for fine crushing.

[0028] Furthermore, the material inlet of the second crushing component 5 is specifically configured as follows: an annular feed port 507 is extended upwardly from the cylinder wall of the fixed cylinder 503, the upper surface of the annular feed port 507 is inclined inwardly, and an annular groove 508 is provided on the lower surface of the annular feed port 507, and the upper end of the rotating cylinder 502 is inserted into the annular groove 508.

[0029] A material conveying device is provided between the pulverizing chamber 3 and the second pulverizing assembly 5 , and the material conveying device may be a screw conveyor.

[0030] In the above embodiment, after being crushed by the first crushing component 301, the caragana litter will only be crushed into a filamentous product. For example, for a filamentous product with a diameter of 1 mm and a length of 8 to 12 mm, the hammer mill will not crush the caragana litter into a product with a smaller particle size that is almost powdery, so a second crushing component 5 is also provided. The second crushing component 5 includes a rotating shaft 501, a rotating drum 502, and a fixed drum 503, and the second cylindrical cone cutters 506 and the first cylindrical cone cutters 505 are staggered in the circumferential and vertical directions. The width of the conveyor belt 4 is greater than the length of the first roller body 101 and the second roller body 102, leaving no dead angle for cutting. The number of the first cylindrical cone cutters 505 and the second cylindrical cone cutters 506 arranged in the circumferential direction is not specifically limited in this embodiment, and is set to 8 for example. The number of the holes arranged in the vertical direction can be specifically arranged according to the height of the rotating shaft 501 and the rotating drum 502, and no specific limitation is made. The first cylindrical cone cutter 505 and the second cylindrical cone cutter 506 are both provided with spiral milling cutter blades on their surfaces. The rotation direction of the rotating shaft 501 is opposite to the rotation direction of the rotating drum 502, so that the coarse crushed material can be crushed into finer particles. When the coarse crushed material of the caragana littoralis leaves coming out of the first crushing assembly 301 enters the rotating drum 502, the coarse crushed material can be finely crushed to form a powder. Also, since a plurality of sieve holes 511 are arranged on the lower end of the wall and the bottom plate of the rotating drum 502, during the fine crushing process, due to the effect of centrifugal force, if the crushed material reaches the particle size of the sieve hole 511, it will directly enter the fixed drum 503 through the sieve hole 511. The diameter of the sieve hole 511 can be set to 0.5-1 mm, for example, and can be specifically set according to actual needs. The fixed cylinder 503 is also provided with a material outlet 512, which is convenient for obtaining finely crushed materials from the fixed cylinder 503. In addition, an annular feed port 507 is also provided on the cylinder wall of the fixed cylinder 503, and the upper surface of the annular feed port 507 is inclined inward, which is convenient for materials to enter the rotating cylinder 502. An annular groove 508 is provided on the lower surface of the annular feed port 507, and the upper end of the rotating cylinder 502 is inserted into the annular groove 508, which can make the rotating cylinder 502 rotate stably and will not deviate from the rotation center of the rotating cylinder 502, and at the same time, the material will not enter the fixed cylinder 503 from the annular feed port 507. It should also be noted that the bottom end of the rotating shaft 501 does not contact the bottom plate of the rotating cylinder 502. When the driving shaft of the second driving mechanism 510 passes through the bottom plate of the fixed cylinder 503 and is fixedly connected to the bottom plate of the rotating cylinder 502, a support plate 513 is also provided between the driving shaft of the second driving mechanism 510 and the rotating cylinder 502.

[0031] In one specific embodiment, the caragana litter crushing device further includes a square support frame 504, the fixed cylinder 503 and the second drive mechanism 510 are both fixedly arranged on the bottom plate of the square support frame 504, the first drive mechanism 509 is fixedly arranged on the top plate of the square support frame 504, and the drive shaft of the first drive mechanism 509 passes through the top plate and is fixedly connected to the rotating shaft 501. The square support frame 504 can conveniently fix the fixed cylinder 503, the first drive mechanism 509, and the second drive mechanism 510. The first drive mechanism 509 and the second drive mechanism 510 are both drive motors.

[0032] In one specific embodiment, the Caragana litter pulverizing device is provided with a plurality of superheated steam nozzles at the top of the drying chamber 2, specifically comprising: a cavity layer 201 is provided at the top of the drying chamber 2, a superheated steam inlet is provided on the top plate of the cavity layer 201, the superheated steam inlet is connected to a superheated steam generator 203, and a plurality of superheated steam nozzles 202 are provided at equal intervals on the bottom plate of the cavity layer 201. The temperature of the superheated steam sprayed from the drying chamber 2 can be specifically adjusted according to the temperature of the superheated steam generated by the superheated steam generator 203 as needed.

[0033] In one specific embodiment, in the described caragana litter crushing device, one side of the hammer 302 of the hammer crusher is in an arc-shaped sawtooth shape. The hammer crusher currently available on the market can be used, but the hammer is in an arc-shaped sawtooth shape, which can cut the flattened caragana litter well.

[0034] In one specific embodiment, the caragana litter crushing device, the extrusion chamber 1, the drying chamber 2 and the crushing chamber 3 are an integrated structure. In the specific configuration, a support device is provided below the extrusion chamber 1 and the drying chamber 2, and the specific structure of the support device is not specifically limited, as long as the function can be achieved.

[0035] In one specific embodiment, the caragana litter crushing device, the driving shafts of the first roller body 101 and the second roller body 102, the driving wheel and the driven wheel of the conveyor belt 4 are all rotatably arranged on the two side walls of the extrusion chamber and the drying chamber 2. When specifically arranged, they can be rotatably arranged on the side walls through bearings, and the driving mechanism for driving the first roller body 101, the driving mechanism for driving the second roller body 102 and the driving mechanism for driving the driving wheel of the conveyor belt 4 are all arranged outside the extrusion chamber and the drying chamber 2. The driving mechanisms are all driving motors. Arranging the driving motors outside can better dissipate heat and will not be affected by the temperature of the drying chamber 2.

[0036] In summary, the Caragana korshinskii litter pulverizing device provided in the embodiment of the present invention can pulverize Caragana korshinskii litter well to obtain Caragana korshinskii litter powder of target particle size.

[0037] The number of devices and processing scales described here are used to simplify the description of the present invention. Applications, modifications and variations of the present invention will be obvious to those skilled in the art.

[0038] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A device for crushing fallen caragana litter, characterized in that: include: An extrusion chamber is provided with a first roller and a second roller, wherein the first roller and the second roller are located at the same height and rotate in opposite directions, so that the caragana litter enters the gap between the first roller and the second roller to be flattened and thinned; A drying chamber, which is arranged at one side of the extrusion chamber and communicated with the extrusion chamber, and a plurality of superheated steam nozzles are arranged on the top of the drying chamber; A conveyor belt is arranged in the extrusion chamber and the drying chamber, one end of the conveyor belt is located below the first roller body and the second roller body, and the flattened and thinned caragana litter falls onto the conveyor belt in sequence and is conveyed to the drying chamber for drying, wherein the conveying direction of the conveyor belt is perpendicular to the longitudinal axis of the roller shafts of the first roller body and the second roller body; A crushing chamber is arranged below a side of the drying chamber away from the extrusion chamber and communicated with the drying chamber. A first crushing assembly is arranged in the crushing chamber, and the other end of the conveyor belt is just located above the first crushing assembly to crush the caragana litter; The first roller body and the second roller body are sprayed with wear-resistant materials, including: high chromium cast iron powder: 80%-85%; tungsten carbide particles: 8%-13%; nickel-based alloy powder: 5%-8%; rare earth element oxide powder: 0.2%-0.8%; borosilicate element powder: 0.5%-1%, and the powder particle size is between 40-50μm; flame thermal spraying is first performed at a rate of 300-350mm / s, and then the first oxyacetylene flame remelting is performed at a speed of 50-60mm / min, and then the second oxyacetylene flame remelting is performed at a speed of 45-50mm / min.

2. The caragana litter crushing device according to claim 1, characterized in that: The invention also includes a second crushing assembly, which is connected to the discharge port of the crushing chamber, and the second crushing assembly specifically includes: A rotating shaft is vertically arranged, and an upper end thereof is fixedly connected to a driving shaft of a first driving mechanism; wherein a plurality of first cylindrical cone cutters are arranged on the surface of the rotating shaft at equal intervals in the circumferential direction and in the vertical direction; A rotating drum, whose rotation center axis is in the vertical direction, the bottom plate of the rotating drum is fixedly connected to the driving shaft of a second driving mechanism, and a plurality of second cylindrical cone cutters are arranged on the inner surface of the rotating drum at equal intervals in the circumferential direction and in the vertical direction; wherein the rotating shaft is inserted into the rotating drum, and the second cylindrical cone cutters and the first cylindrical cone cutters are staggered in the circumferential direction and in the vertical direction, the sum of the lengths of the first cylindrical cone cutter and the second cylindrical cone cutter is greater than the distance between the inner surface of the rotating drum and the outer surface of the rotating shaft, and a plurality of sieve holes are arranged on the lower end of the drum wall and the bottom plate of the rotating drum; A fixed cylinder, which is arranged outside the rotating cylinder, so that the rotating cylinder and the rotating shaft are both located inside the fixed cylinder, and the driving shaft of the second driving mechanism passes through the bottom plate of the fixed cylinder and is fixedly connected to the bottom plate of the rotating cylinder; The rotation direction of the rotating shaft is opposite to that of the rotating drum, and the coarsely crushed caragana litter coming out of the first crushing assembly enters the rotating drum for fine crushing.

3. The caragana litter crushing device according to claim 2, characterized in that: The material inlet of the second crushing component is specifically configured as follows: an annular feed opening is extended upwardly from the cylinder wall of the fixed cylinder, the upper surface of the annular feed opening is inclined inwardly, an annular groove is provided on the lower surface of the annular feed opening, and the upper end of the rotating cylinder is inserted into the annular groove.

4. The caragana litter crushing device according to claim 3, characterized in that: It also includes a square support frame, the fixed cylinder and the second driving mechanism are both fixedly arranged on the bottom plate of the square support frame, the first driving mechanism is fixedly arranged on the top plate of the square support frame, and the driving shaft of the first driving mechanism passes through the top plate and is fixedly connected to the rotating shaft.

5. The caragana litter crushing device according to claim 1, characterized in that: A plurality of superheated steam nozzles are arranged on the top of the drying chamber, specifically comprising: a cavity layer is arranged on the top of the drying chamber, a superheated steam inlet is arranged on the top plate of the cavity layer, the superheated steam inlet is connected to a superheated steam generator, and a plurality of superheated steam nozzles are arranged at equal intervals on the bottom plate of the cavity layer.

6. The caragana litter crushing device according to claim 1, characterized in that: The width of the conveyor belt is greater than the length of the first roller body and the second roller body; the first crushing assembly is a hammer crusher, the longitudinal axis of its driving shaft is perpendicular to the conveying direction of the conveyor belt, and the connection between the crushing chamber and the drying chamber is an inverted cone structure.

7. The caragana litter crushing device according to claim 6, characterized in that: One side of the hammer of the hammer mill is in an arc-shaped sawtooth shape.

8. The caragana litter crushing device according to claim 1, characterized in that: The extrusion chamber, the drying chamber and the pulverizing chamber are an integrated structure.

9. The caragana litter crushing device according to claim 8, characterized in that: The driving shafts of the first roller body and the second roller body, the driving wheel and the driven wheel of the conveyor belt are rotatably arranged on the two side walls of the extrusion chamber and the drying chamber, and the driving mechanism for driving the first roller body, the driving mechanism for driving the second roller body and the driving mechanism for driving the driving wheel of the conveyor belt are all arranged outside the extrusion chamber and the drying chamber.

10. The caragana litter crushing device according to claim 1, characterized in that: The rare earth element oxide powder is any one of cerium oxide powder and lanthanum oxide powder, or a combination of the two oxide powders.

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