Material pulverizing device and material pulverizing system

Abstract

The application discloses a material crushing device and a material crushing system. The shell of the material crushing device is provided with a coarse and fine mixture discharge port and a product discharge port. A rotating barrel assembly is rotationally arranged in the shell. The rotating barrel assembly has a feeding pipe for communicating with the outside of the shell, an outer wall arranged along the circumference thereof, and an end wall located at the end of the rotating barrel assembly. The outer wall is provided with a nozzle. The material sprayed by the nozzle forms coarse and fine mixture. The end wall is provided with a product initial discharge port corresponding to the centrifugal sedimentation surface of the rotating barrel assembly. A coarse and fine mixture cavity is located in the shell and contains the coarse and fine mixture. The coarse and fine mixture discharge port communicates with the coarse and fine mixture cavity and is used for discharging the coarse and fine mixture. A product cavity is located in the shell and is used for containing the product material discharged by the product initial discharge port. The product discharge port communicates with the product cavity and is used for discharging the product material in the product cavity. A power source drives the rotating barrel assembly to rotate. The crushing effect of the material is ensured.

Description

Technical Field

[0001] This invention relates to the field of filtration equipment technology, and in particular to a material crushing device and a material crushing system. Background Technology

[0002] Material crushing equipment is widely used in the preparation of various materials.

[0003] Many materials exhibit extremely unique properties when they reach the nanoscale particle size, making nanoscale pulverization of great practical significance for the advancement of science, technology, and industry.

[0004] Taking graphene as an example, graphene is a naturally occurring three-dimensional carbon homogeneous material, graphite, in which carbon atoms are arranged in a two-dimensional thin film form of hexagonal planar structure. The carbon atoms in graphene are sp2 bonded, resulting in a single-atom-thick planar sheet-like structure. Because the weak van der Waals forces between graphite layers make it relatively easy to peel off, but the peeled graphene, with a layer thickness of approximately 0.35 nm, exhibits extremely rapid re-aggregation, a structure is designed to simultaneously peel off the graphene and then centrifuge it inside the machine to remove the single-layer graphene from the machine, thus minimizing re-aggregation time.

[0005] Biological cell wall disruption can extract effective substances from biological structures, which has great application value for scientific research and practical applications in medicine and environmental protection.

[0006] Therefore, the preparation of monolayer graphene through exfoliation, as well as the preparation of nanomaterial powders and bio-cell disruption, all require material pulverization. Ensuring effective material pulverization is a problem that this technology can solve. Summary of the Invention

[0007] In view of this, the present invention provides a material crushing device to ensure crushing effect. The present invention also provides a material crushing system.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A material crushing device, comprising:

[0010] A non-rotating outer casing, wherein the outer casing is provided with a discharge port for a mixture of coarse and fine materials and a product discharge port;

[0011] A rotating drum assembly is rotatably disposed within the housing; the rotating drum assembly has a feed pipe for communicating with the outside of the housing, the rotating drum assembly has an outer wall arranged along its circumference and an end wall located at the end of the rotating drum assembly, the outer wall is provided with a nozzle, the substance ejected from the nozzle forms a coarse and fine mixture, the end wall is provided with an initial product discharge port, the initial product discharge port is arranged corresponding to the centrifugal settling surface of the rotating drum assembly;

[0012] A coarse and fine mixture cavity located inside the outer shell and used to contain the coarse and fine mixture, wherein the coarse and fine mixture outlet is connected to the coarse and fine mixture cavity and used to discharge the coarse and fine mixture from the coarse and fine mixture cavity;

[0013] A product cavity located within the outer casing and used to receive product material discharged from the initial product outlet, wherein the product outlet is connected to the product cavity and used to discharge product material from the product cavity;

[0014] The power source that drives the rotating barrel assembly to rotate.

[0015] Optionally, in the above-mentioned material crushing device, the rotating drum assembly includes a first conical cylinder and a second conical cylinder that are interconnected, with the larger end of the first conical cylinder and the larger end of the second conical cylinder being connected to each other.

[0016] The nozzle is located at the connection between the first conical cylinder and the second conical barrel.

[0017] Optionally, the above-mentioned material crushing device further includes a feed pipe for conveying the raw material dispersion into the rotating drum assembly;

[0018] The rotating drum assembly has an initial product discharge port on one end of its end wall; the rotating drum assembly has a feed pipe on the other end of its end wall, the center of which coincides with the axis of the rotating drum assembly.

[0019] The output end of the feed pipe extends into the rotating drum assembly through the feed pipe, and there is a gap between the outer wall of the feed pipe and the inner wall of the feed inlet of the rotating drum.

[0020] Optionally, in the above-mentioned material crushing device, the rotating drum assembly is equipped with a flow stabilizing device.

[0021] Optionally, in the above-mentioned material crushing device, the flow stabilizing device is coaxially and fixedly connected to the power source.

[0022] Optionally, in the above-mentioned material crushing device, the rotating drum assembly is further provided with a guide block for guiding the material flow to the nozzle.

[0023] Optionally, in the above-mentioned material crushing device, the outer shell has a first isolation plate connected to the inner wall of the outer shell;

[0024] The first separator divides the internal space of the outer shell into the coarse and fine material mixture cavity and the product cavity;

[0025] The first isolation plate has a first opening through which the end wall of the rotating drum assembly having the initial outlet of the product passes, and there is a first gap between the first opening and the outer wall of the rotating drum assembly.

[0026] Optionally, in the above-mentioned material crushing device, the outer shell further includes a second isolation plate and a third isolation plate connected to the inner wall of the outer shell;

[0027] The second isolation sheet is located between the first isolation sheet and the third isolation sheet;

[0028] The third and second isolation plates are located within the coarse and fine material mixture cavity and sequentially divide the coarse and fine material mixture cavity into a first cavity, a second cavity, and a third cavity;

[0029] The connection between the second and third isolation plates and the inner wall of the outer shell has a reflux hole that connects two adjacent cavities; the two adjacent cavities include the first cavity and the second cavity, and the second cavity and the third cavity;

[0030] The second isolation plate has a second opening sleeved on the outside of the rotating barrel assembly, and a second gap exists between the second opening and the outer wall of the rotating barrel assembly;

[0031] The third isolation plate has a third opening sleeved on the outside of the rotating barrel assembly, and there is a third gap between the third opening and the outer wall of the rotating barrel assembly;

[0032] The mixture of coarse and fine materials is directly connected to the second cavity.

[0033] Optionally, the above-mentioned material crushing device also includes a wear-resistant plate.

[0034] The present invention also provides a material crushing system, comprising:

[0035] A raw material mixing tank, wherein the raw material mixing tank has a raw material mixing tank inlet for feeding raw materials;

[0036] A disperser, wherein the disperser inlet is connected to the raw material mixing tank outlet;

[0037] The material crushing device as described in any one of the claims, wherein the feed pipe of the material crushing device is connected to the disperser outlet of the secondary mixing tank.

[0038] Optionally, the above-mentioned material crushing system further includes:

[0039] A secondary mixing tank, wherein the secondary mixing inlet of the secondary mixing tank is connected to the dispersing outlet of the disperser, and the secondary mixing outlet of the secondary mixing tank is connected to the feed pipe of the material crushing device;

[0040] A secondary centrifugal separator, wherein the secondary feed pipe of the secondary centrifugal separator is connected to the coarse and fine material mixture of the material crushing device, and the coarse particle material outlet of the secondary centrifugal separator is connected to the secondary mixing inlet of the secondary mixing tank.

[0041] Optionally, in the above-mentioned material crushing system, the secondary nanoscale product outlet of the secondary centrifugal separator is connected to the product discharge outlet and outputs product material.

[0042] As can be seen from the above technical solution, the material crushing device provided by the present invention introduces the raw material dispersion to be crushed into the rotating drum assembly through the feed pipe. The rotating drum assembly, driven by a power source, rotates relative to the outer shell, generating centrifugal force on the material inside. Under the action of centrifugal force, the material is ejected through nozzles, producing a coarse and fine mixture. The coarse and fine mixture flows back to the feed pipe through the coarse and fine mixture discharge outlet for further crushing. Simultaneously, the centrifugal settling distance maintained within the rotating drum assembly ensures the separation of substances with different densities. The density of the material changes sequentially along the outer wall of the rotating drum assembly towards the center, creating a centrifugal separation effect. This keeps the product material on the centrifugal settling surface, which is level with the initial product discharge outlet and flows into the product cavity, becoming the final nanoscale material dispersion product. The rotating drum assembly has an initial product discharge port on its end wall, which corresponds to the centrifugal settling surface of the assembly. Therefore, high-density materials flow out of the rotating drum assembly through the nozzle and into the coarse-fine material mixing chamber; low-density materials flow out of the rotating drum assembly through the initial product discharge port and into the product chamber, then are discharged through the product discharge port. Because the rotating drum assembly, driven by a power source, rotates relative to the outer shell, it generates centrifugal force on the material inside. Under the action of centrifugal force, the material is ejected through the nozzle by a jet generated by the centrifugal force produced by the rotational speed of the drum. During ejection, the material impacts the nozzle, thereby improving the particle size and ensuring the pulverization effect.

[0043] The material crushing system also provided by the present invention, since the above-mentioned material crushing device has the above-mentioned technical effects, the material crushing system having the above-mentioned material crushing device should also have the same technical effects, which will not be described in detail here. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of the structure of the material crushing device provided in an embodiment of the present invention;

[0046] Figure 2 This is a schematic diagram of the material crushing device provided in an embodiment of the present invention. Detailed Implementation

[0047] This invention discloses a material pulverizing device to ensure pulverizing effect. This invention also provides a material pulverizing system.

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] like Figure 1 As shown, this embodiment of the invention provides a material crushing device, including a shell 18, a rotating drum assembly 2, a coarse and fine material mixing chamber, a product chamber 14, and a power source 20. The shell 18 is provided with a coarse and fine material mixing outlet 7 and a product outlet 8; the rotating drum assembly 2 is rotatably disposed inside the shell 18, the rotating drum assembly 2 has a feed pipe 1 for communicating with the outside of the shell 18, the rotating drum assembly 2 has an outer wall arranged along its circumference and an end wall located at the end of the rotating drum assembly 2, and a nozzle 9 is provided on the outer wall, the material sprayed from the nozzle 9 forms a coarse and fine material mixture. The end wall is provided with an initial product discharge port 6, which is corresponding to the centrifugal settling surface 25 of the rotating drum assembly 2; the coarse and fine material mixing chamber is located inside the outer shell 18 and is used to contain the coarse and fine material mixture; the coarse and fine material mixing discharge port 7 is connected to the coarse and fine material mixing chamber and is used to discharge the coarse and fine material mixture in the coarse and fine material mixing chamber; the product chamber 14 is located inside the outer shell 18 and is used to contain the product material discharged from the initial product discharge port 6; the product discharge port 8 is connected to the product chamber 14 and is used to discharge the material in the product chamber 14; the power source 20 drives the rotating drum assembly 2 to rotate.

[0050] The material pulverizing device provided in this embodiment of the invention introduces the raw material dispersion to be pulverized into the rotating drum assembly 2 through the feed pipe 1. A power source 20 drives the rotating drum assembly 2 to rotate relative to the outer shell, generating centrifugal force on the material inside the rotating drum assembly 2. Under the action of centrifugal force, the material is ejected through the nozzle 9, producing a coarse and fine mixture. The coarse and fine mixture flows back to the feed pipe 1 through the coarse and fine mixture discharge port for further cyclical pulverization. Simultaneously, the centrifugal settling distance maintained within the rotating drum assembly 2 ensures the separation of substances with different densities within the material. The density of the material changes sequentially along the outer wall of the rotating drum assembly 2 towards the center, creating a centrifugal separation effect. This keeps the product material b at the centrifugal settling surface 25, which is then discharged through the initial product discharge port 6, which is level with the centrifugal settling surface, and flows into the product cavity, becoming the final nanoscale material dispersion product. The rotating drum assembly 2 has an initial product discharge port on its end wall, which corresponds to the centrifugal settling surface of the rotating drum assembly 2. Therefore, high-density materials flow out of the rotating drum assembly 2 through the nozzle 9 and into the coarse and fine material mixing chamber; low-density materials flow out of the rotating drum assembly 2 through the initial product discharge port 6 and into the product chamber 14, and are discharged through the product discharge port 8. Because the material to be pulverized is driven by the power source 20 to rotate the rotating drum assembly 2 relative to the outer shell 18, centrifugal force is generated on the material inside the rotating drum assembly 2. Under the action of centrifugal force, the material is ejected through the nozzle 9 by the jet generated by the centrifugal force produced by the rotation speed of the rotating drum 2. During the ejection process, the material impacts, thereby improving the particle size and ensuring the pulverization effect.

[0051] By using the material crushing device provided in this embodiment of the invention, the materials to be separated can be processed with a very small amount of dispersant and a very small amount of pH adjuster, and the used water and dispersant can also be recycled and reused, achieving a non-toxic and harmless green process and improving the purity of the product.

[0052] The material, after passing through the aforementioned material crushing device, can be pulverized to the nanoscale, resulting in product b. This facilitates the preparation of graphene, nanoscale materials, or bio-cell disruption.

[0053] The dispersant for the dispersion can be water or other organic solvents, such as alcohol.

[0054] With the above settings, you can also try separating the liquid phase and the solid phase (material).

[0055] Nanoscale powders can be separated by centrifugal sedimentation. The materials to be pulverized and separated can be graphene or nanoparticle dispersions.

[0056] The outer casing 18 includes an upper part and a lower part that interlock, and the upper and lower parts are fixed and sealed with bolts and rubber rings. Preferably, the upper part is provided with two handles for maintenance, and the lower part is provided with two outlets 7 for discharging a mixture of coarse and fine materials from the pipeline and a product outlet 8.

[0057] like Figure 1 As shown, in this embodiment, the rotating barrel assembly 2 includes a first conical barrel 2 and a second conical barrel 3 that are interconnected, with the larger end of the first conical barrel 2 and the larger end of the second conical barrel 3 being connected to each other; the nozzle 9 is located at the connection between the first conical barrel 2 and the second conical barrel 3. With the above arrangement, the jet generated by the centrifugal force produced by the rotational speed of the rotating barrel 2 is ejected through the nozzle 9 to produce the maximum possible pulverizing effect.

[0058] The raw materials to be pulverized can be graphite powder dispersion, material dispersion, or biological material dispersion to be broken, etc.

[0059] The graphene dispersion is discharged through the initial outlet 6 of the material pulverizing device provided in this embodiment of the invention; the micron-sized material coarse particle dispersion is discharged as a nano-material dispersion through the initial outlet 6 of the material pulverizing device provided in this embodiment of the invention; the biological cell wall breaking material dispersion is discharged as a biological cell wall breaking solution product through the initial outlet 6 of the material pulverizing device provided in this embodiment of the invention.

[0060] The material crushing device provided in this embodiment of the invention further includes a feed pipe 1 for conveying the raw material dispersion into the rotating drum assembly 2; one end wall of the rotating drum assembly 2 has an initial product discharge port 6; the other end wall of the rotating drum assembly 2 has a feed pipe, the center of which coincides with the axis of the rotating drum assembly 2; the output end of the feed pipe 1 extends into the rotating drum assembly 2 through the feed pipe, and there is a gap 23 between the outer wall of the feed pipe 1 and the feed inlet of the rotating drum. Because there is a gap 23 between the outer wall of the feed pipe 1 and the feed inlet of the rotating drum, the feed pipe 1 does not need to rotate with the rotating drum assembly 2, making it convenient to adjust the inlet direction of the feed pipe 1. Figure 1 As shown, the feed pipe 1 is an "L"-shaped pipe with its input end facing upwards and its output end extending into the rotating drum assembly 2. Furthermore, the sidewall of the output end of the feed pipe 1 has multiple openings to improve the uniformity of feeding. The feed gap 23 is preferably 5 mm.

[0061] In this embodiment, the drive shaft of the power source 20 extends into the housing 18 and connects to the rotating barrel assembly 2. The end of the rotating barrel assembly 2 furthest from the power source 20 has a feed pipe, which forms a pipe structure extending out of the housing 18. A sealing ring 10 is located where the drive shaft of the power source 20 passes through the housing 18, and a sealing ring 10 is also located where the pipe structure formed by the feed pipe passes through the housing 18. The pipe structure formed by the drive shaft of the power source 20 and the feed pipe is rotatably supported on the housing 18 by bearings.

[0062] In this embodiment, a flow stabilizing device 21 is provided inside the rotating barrel assembly 2. By providing the flow stabilizing device 21, turbulence inside the rotating barrel assembly 2 can be eliminated, thereby achieving a flow stabilizing effect.

[0063] Furthermore, the flow stabilizing device 21 is coaxially and fixedly connected to the power source 20.

[0064] The flow stabilizing device 21 is made of plastic. It is fixedly mounted on the main shaft that extends into the rotating drum assembly 2. The main shaft is connected to or integrally formed with the drive shaft of the power source 20.

[0065] In this embodiment, the current stabilizing device 21 includes a main pipe section and a current stabilizing sheet disposed on the main pipe section. The main pipe section has a insertion groove, and the current stabilizing sheet is inserted into the insertion groove.

[0066] Preferably, the main pipe has 24 insertion grooves, and 24 current-stabilizing fins are arranged one-to-one with the 24 insertion grooves.

[0067] The flow stabilizing device 21 is fixed to the main shaft by bolts or locating pins.

[0068] By setting up the flow stabilizing device 21, the turbulent flow caused by the material that does not rotate with the rotating drum assembly 2 and the material that rotates with the rotating drum assembly 2 at a lower speed and the speed difference inside the rotating drum assembly 2 at a high speed is eliminated, the centrifugal sedimentation upper surface 25 inside the rotating drum assembly 2 is stabilized, and the quality of the separated material, such as graphene or nano-powder dispersion, is ensured.

[0069] In the material crushing device provided in this embodiment of the invention, a guide block 24 for guiding the material flow to the nozzle 9 is also provided inside the rotating drum assembly 2. This arrangement ensures the synchronicity of the material flow near the nozzle 9.

[0070] The outer casing 18 has a first partition plate 15 connected to the inner wall of the outer casing 18; the first partition plate 15 divides the internal space of the outer casing 18 into a coarse and fine material mixture cavity and a product cavity 14; the first partition plate 15 has a first opening through which the end wall of the rotating barrel assembly 2 with the initial product discharge port 6 passes, and there is a first gap 141 between the first opening and the outer wall of the rotating barrel assembly 2.

[0071] By setting the first isolation plate 15, it is convenient to divide the inner wall of the outer shell 18 into a coarse and fine material mixture cavity and a product cavity 14.

[0072] In this embodiment, the outer casing 18 also has a second isolation plate 16 and a third isolation plate 17 connected to the inner wall of the outer casing 18; the second isolation plate 16 is located between the first isolation plate 15 and the third isolation plate 17; the third isolation plate 17 and the second isolation plate 16 are located in the coarse and fine material mixing cavity and sequentially divide the coarse and fine material mixing cavity into a first cavity 11, a second cavity 12 and a third cavity 13; the connection between the second isolation plate 16 and the third isolation plate 17 and the inner wall of the outer casing 18 has a reflux hole that connects two adjacent cavities. 22; two adjacent cavities include a first cavity 11 and a second cavity 12 and a second cavity 12 and a third cavity 13; the second isolation plate 16 has a second opening sleeved on the outside of the rotating barrel assembly (2), and there is a second gap 131 between the second opening and the outer wall of the rotating barrel assembly (2); the third isolation plate 17 has a third opening sleeved on the outside of the rotating barrel assembly (2), and there is a third gap 111 between the third opening and the outer wall of the rotating barrel assembly (2); the coarse and fine material mixture discharge port 7 is directly connected to the second cavity 12.

[0073] By dividing the coarse and fine material mixture chamber into a first chamber 11, a second chamber 12 and a third chamber 13 in sequence, the coarse and fine material mixture discharge port 7 is directly connected to the second chamber 12. The material in chambers 11 and 13 flows back to the second chamber 12 through the return holes 22 located on the lower side of the second isolation plate 16 and the third isolation plate 17, and is discharged from the coarse and fine material mixture discharge port 7 after being collected in the second chamber 12.

[0074] In this embodiment, the nozzle 9 is configured to correspond with the second cavity 12.

[0075] The material crushing device provided in this embodiment of the invention further includes a wear-resistant plate 19, on which the coarse and fine mixed material sprayed from the nozzle 9 splashes onto the surface of the wear-resistant plate on the inner wall of the outer shell 18. By providing the wear-resistant plate 19, the service life of the outer shell is improved.

[0076] The wear-resistant plate 19 is preferably a polyurethane wear-resistant elastic plate. Further, the wear-resistant plate 19 has a width of 40 mm and a thickness of 10 mm.

[0077] like Figure 2 As shown, the present invention also provides a material crushing system, including a raw material mixing tank 100, a disperser 200, and a material crushing device 400 as described above. The raw material mixing tank 100 has a raw material mixing tank inlet for feeding raw materials; the disperser inlet of the disperser 200 is connected to the raw material mixing tank outlet of the raw material mixing tank 100; and the feed pipe 9 of the material crushing device 400 is connected to the disperser outlet of the disperser 200.

[0078] The material crushing system provided in this embodiment of the invention has the same technical effects as the material crushing device 400 described above, and will not be described in detail here.

[0079] In this process, the material used as raw material a is added to the raw material mixing tank 100 and stirred.

[0080] To improve material utilization and achieve recycling production, the material crushing device provided in this embodiment of the invention further includes: a secondary mixing tank 300, the secondary mixing inlet of the secondary mixing tank 300 being connected to the disperser outlet of the disperser 200, and the secondary mixing outlet of the secondary mixing tank 300 being connected to the feed pipe of the material crushing device 400; and a secondary centrifugal separator 500, the secondary feed pipe of the secondary centrifugal separator 500 being connected to the coarse and fine material mixture discharge outlet 7 of the material crushing device 400, and the coarse particle material outlet of the secondary centrifugal separator 500 being connected to the secondary mixing inlet of the secondary mixing tank 300.

[0081] The material sprayed through nozzle 9 flows into secondary centrifugal separator 500 through secondary feed pipe via coarse and fine material mixture discharge port 7 for secondary centrifugation. The separated coarse particles are connected to the secondary mixing inlet of secondary mixing tank 300 through the coarse particle discharge port of secondary centrifuge. In secondary mixing tank 300, the material is mixed with the material conveyed by the disperser outlet of disperser 200 and then conveyed to material crushing device 400 for centrifugal separation.

[0082] Preferably, the secondary nanoscale product outlet of the secondary centrifuge 500 is connected to the product discharge outlet 8 and outputs nanoscale product b.

[0083] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0084] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A material crushing device, characterized in that, include: A non-rotating outer shell (18) is provided with a coarse and fine material mixture outlet (7) and a product outlet (8). A rotating drum assembly is rotatably disposed inside the outer shell (18); the rotating drum assembly has a feed pipe (1) for communicating with the outside of the outer shell, the rotating drum assembly has an outer wall disposed along its circumference and an end wall located at the end of the rotating drum assembly, the outer wall is provided with a nozzle (9), the material ejected by the nozzle (9) is crushed to form a coarse and fine mixture, the end wall is provided with a product initial discharge port (6), the product initial discharge port (6) is disposed corresponding to the centrifugal settling surface (25) of the rotating drum assembly; A coarse and fine mixture cavity located inside the outer shell (18) for containing the coarse and fine mixture, wherein the coarse and fine mixture outlet (7) is connected to the coarse and fine mixture cavity and is used to discharge the coarse and fine mixture in the coarse and fine mixture cavity; A product cavity (14) located inside the outer shell (18) and used to receive product material discharged from the initial product outlet (6), wherein the product outlet (8) is connected to the product cavity (14) and used to discharge product material (b) inside the product cavity (14); Power source (20) that drives the rotating barrel assembly to rotate; The outer shell (18) has a first isolation piece (15) connected to the inner wall of the outer shell (18). The first separator (15) divides the internal space of the outer shell (18) into the coarse and fine material mixture cavity and the product cavity (14). The outer casing (18) also has a second isolation piece (16) and a third isolation piece (17) connected to the inner wall of the outer casing (18). The second isolation piece (16) is located between the first isolation piece (15) and the third isolation piece (17); The third isolation plate (17) and the second isolation plate (16) are located in the coarse and fine material mixture cavity and divide the coarse and fine material mixture cavity into a first cavity (11), a second cavity (12) and a third cavity (13) in sequence. The connection between the second isolation plate (16) and the third isolation plate (17) and the inner wall of the outer shell (18) has a reflux hole (22) that connects two adjacent cavities; the two adjacent cavities include the first cavity (11) and the second cavity (12) and the second cavity (12) and the third cavity (13); The second isolation piece (16) has a second opening sleeved on the outside of the rotating barrel assembly, and a second gap (131) between the second opening and the outer wall of the rotating barrel assembly. The third isolation piece (17) has a third opening sleeved on the outside of the rotating barrel assembly, and there is a third gap (111) between the third opening and the outer wall of the rotating barrel assembly. The discharge port (7) of the coarse and fine material mixture is directly connected to the second cavity (12).

2. The material crushing device as described in claim 1, characterized in that, The rotating barrel assembly includes a first conical barrel (2) and a second conical barrel (3) that are interconnected, with the larger end of the first conical barrel (2) being connected to the larger end of the second conical barrel (3); The nozzle (9) is located at the connection between the first conical cylinder (2) and the second conical cylinder (3).

3. The material crushing device as described in claim 1, characterized in that, The end wall of one end of the rotating drum assembly has the initial product discharge port (6); the end wall of the other end of the rotating drum assembly has the feed pipe (1), the center of the feed pipe coincides with the axis of the rotating drum assembly; The output end of the feed pipe (1) extends into the rotating barrel assembly through the feed pipe, and there is a gap (23) between the outer wall of the feed pipe (1) and the inner wall of the feed port of the rotating barrel.

4. The material crushing device as described in claim 1, characterized in that, The rotating barrel assembly is equipped with a flow stabilizing device (21).

5. The material crushing device as described in claim 4, characterized in that, The flow stabilizing device (21) is coaxially and fixedly connected to the power source (20).

6. The material crushing device as described in claim 1, characterized in that, The rotating drum assembly is also provided with a guide block (24) for guiding the material flow to the nozzle (9).

7. The material crushing device as described in claim 1, characterized in that, The first isolation plate (15) has a first opening through which the end wall of the rotating barrel assembly having the initial product outlet (6) passes, and the first opening has a first gap (141) between it and the outer wall of the rotating barrel assembly.

8. A material crushing system, characterized in that, include: A raw material mixing tank (100) having a raw material mixing tank inlet for feeding raw materials; Disperser (200), wherein the disperser inlet of the disperser (200) is connected to the raw material mixing tank outlet of the raw material mixing tank (100); The material crushing apparatus (400) as described in any one of claims 1-7; A secondary mixing tank (300) is provided, wherein the secondary mixing inlet of the secondary mixing tank (300) is connected to the dispersing outlet of the disperser (200), and the secondary mixing outlet of the secondary mixing tank (300) is connected to the feed pipe of the material crushing device (400).

9. The material crushing system as described in claim 8, characterized in that, Also includes: A secondary centrifuge (500) is provided, wherein the secondary feed pipe of the secondary centrifuge (500) is connected to the coarse and fine material mixture discharge port (7) of the material crushing device (400), and the coarse particle material outlet of the secondary centrifuge (500) is connected to the secondary stirring inlet of the secondary stirring tank (300).

10. The material crushing system as described in claim 9, characterized in that, The secondary nanoscale product outlet of the secondary centrifuge (500) is connected to the product discharge outlet (8) and outputs product material (b).

Images