Crushing device and crushing system

Abstract

The embodiment of the utility model discloses a crushing device and a crushing system, and relates to the field of crushing equipment. The crushing device comprises a crushing pipeline, a first circulating pipe and a second circulating pipe, the crushing pipeline comprises a first end, a second end and a third end, the first end and the second end are used for materials to enter, the third end is used for materials to leave, and the third end is located between the first end and the second end; the first circulating pipe is connected with the first end and the third end and used for conveying materials; the second circulating pipe is connected with the second end and the third end and used for conveying materials; the smashing pipeline further comprises a first spraying pipe close to the first end and a second spraying pipe close to the second end, the first spraying pipe is used for spraying materials from the first end to the third end, the second spraying pipe is used for spraying the materials from the second end to the third end, and the first end and the second end are oppositely arranged so that the materials can leave from the third end after colliding with each other. The crushing device can increase the crushing frequency and improve the crushing effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of crushing equipment, and more particularly to a crushing device and a crushing system. BACKGROUND

[0002] In the industrial production process, the crushing of materials is an important processing link. The existing crushing device has a limited number of crushing times, and the shaping effect of the materials is poor. In some cases, there are problems such as low crushing efficiency and uneven particle size. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a crushing device and a crushing system, which can increase the number of crushing times and improve the crushing effect.

[0004] In a first aspect, the present application provides a crushing device, comprising a crushing pipeline, the crushing pipeline comprising a first end and a second end for the entry of materials, and a third end for the exit of materials, the third end being located between the first end and the second end; a first circulating pipe connected to the first end and the third end for conveying materials; and a second circulating pipe connected to the second end and the third end for conveying materials; wherein the crushing pipeline further comprises a first spray pipe arranged close to the first end and a second spray pipe arranged close to the second end, the first spray pipe being used for spraying materials from the first end to the third end, and the second spray pipe being used for spraying materials from the second end to the third end, the first end and the second end being oppositely arranged so that the materials from the first end and the materials from the second end collide with each other and then exit from the third end.

[0005] In the technical solution of the present application, the first spray pipe and the second spray pipe are arranged close to the first end and the second end respectively, so that the materials are sprayed into the crushing pipeline at high speed from both ends, collide with each other, generate a strong impact force, improve the crushing efficiency and quality, and enable the materials to be fully broken. The first circulating pipe is connected to the first end and the third end of the crushing pipeline, and the second circulating pipe is connected to the second end and the third end of the crushing pipeline, so that the materials enter the first circulating pipe and the second circulating pipe from the third end located in the middle, a circulating path of the materials is constructed, the number of collisions of the materials is increased, and the materials that are not fully crushed can continuously circulate and participate in the crushing. The efficient and stable operation of the entire crushing process is realized, and the crushing effect is improved.

[0006] In some embodiments of the first aspect, the crushing pipeline comprises a first spray pipe group, the first spray pipe group comprising a plurality of first spray pipes located on the same cross section of the crushing pipeline and uniformly distributed along the circumferential direction of the cross section; and / or the crushing pipeline comprises a second spray pipe group, the second spray pipe group comprising a plurality of second spray pipes located on the same cross section of the crushing pipeline and uniformly distributed along the circumferential direction of the cross section.

[0007] In the embodiments of the present application, the number and distribution of the spray pipes are reasonably designed, so that the material can fully utilize the energy of the high-pressure gas in the crushing pipeline. The coordinated spraying of the multiple spray pipes can more evenly transmit the energy of the high-pressure gas to the material, avoiding the concentrated waste of energy. The material collides with each other in a more efficient way under the spraying force in multiple directions, converting the kinetic energy of the gas into the crushing energy of the material, thereby improving the energy utilization rate of the entire crushing device and improving the crushing efficiency.

[0008] In some embodiments of the first aspect, the crushing pipeline comprises a plurality of first spray pipe groups and / or a plurality of second spray pipe groups, and the spraying pressure and number of the first spray pipes are the same as those of the second spray pipes.

[0009] In the embodiments of the present application, the plurality of first spray pipe groups and the plurality of second spray pipe groups jointly act in a relay mode of multiple groups of spray pipes to spray the material to the third end, avoiding the one-time concentrated release and waste of energy. The energy of the high-pressure gas is gradually transmitted to the material, so that the material fully absorbs the energy in continuous movement and collision, realizing efficient crushing. The first spray pipes and the second spray pipes with the same spraying pressure and number cooperate with each other, so that the material can interact in a symmetrical collision mode, enabling the material to quickly and fully collide and crush in the crushing pipeline, thereby improving the crushing efficiency of the material.

[0010] In some embodiments of the first aspect, the spraying directions of the first spray pipes and the second spray pipes form a first included angle with the axis of the crushing pipeline, and the first included angle is greater than or equal to 25° and less than or equal to 75°.

[0011] In the embodiments of the present application, the first spray pipes and the second spray pipes spray at a first included angle of 25° to 75° with the axis of the crushing pipeline. At this included angle, after the material is sprayed into the crushing pipeline, the material can collide with each other at a suitable speed, avoiding the problems of concentrated material and insufficient collision caused by too small spraying angle, and the problem of easy wall collision and kinetic energy loss caused by too large spraying angle. The suitable included angle enables the material to collide with high intensity in the pipeline, effectively improves the crushing efficiency, optimizes the crushing effect, and enhances the working performance of the entire crushing device.

[0012] In some embodiments of the first aspect, the first spray pipes and the second spray pipes are connected to a high-pressure gas source to spray high-pressure gas into the crushing pipeline.

[0013] In the embodiments of the present application, the first spray pipes and the second spray pipes are connected to a high-pressure gas source, and the high-pressure gas source sprays high-pressure gas into the crushing pipeline through the first spray pipes and the second spray pipes, providing strong power for the material to collide with each other at high speed and enhancing the crushing effect.

[0014] In some embodiments of the first aspect, the pulverizing device further comprises an intermediate pipe arranged along the direction of gravity, an axis of the intermediate pipe being perpendicular to an axis of the pulverizing pipe, one end of the intermediate pipe being connected to the third end, wherein the first circulating pipe and the second circulating pipe are connected to the third end by connecting the other end of the intermediate pipe.

[0015] In the embodiments of the present application, the intermediate pipe connects the pulverizing pipe with the first circulating pipe and the second circulating pipe, so that the material can be fully mixed and stably divided when entering the circulating pipe. The uniformity and stability of the material in the circulating pulverizing process are improved, thereby improving the overall pulverizing efficiency of the pulverizing device and the consistency of the product quality.

[0016] In some embodiments of the first aspect, the first circulating pipe and the second circulating pipe are axisymmetric along the axis of the intermediate pipe.

[0017] In the embodiments of the present application, the first circulating pipe and the second circulating pipe are axisymmetric along the axis of the intermediate pipe, which can make the material uniformly divided from the intermediate pipe to the first circulating pipe and the second circulating pipe, so that the flow rate and force of the material in the circulating process can be kept consistent, and the circulation can be stably and continuously carried out. Not only can the force balance of the pulverizing device be achieved, the vibration, deformation and part wear can be reduced, the failure can be reduced, and the service life can be prolonged, but also the material can collide again in the pulverizing pipe in the same state or approximately the same state, and the pulverizing effect can be improved.

[0018] In some embodiments of the first aspect, the pulverizing device comprises a first material inlet located at the first circulating pipe and a second material inlet located at the second circulating pipe, the first material inlet being located at one side of the first circulating pipe close to the first end, and the second material inlet being located at one side of the second circulating pipe close to the second end.

[0019] In the embodiments of the present application, the first material inlet is close to the first end, and the second material inlet is close to the second end, so that the material can be quickly pushed into the pulverizing process by the first jet pipe, and the residence time and energy loss of the material in the first circulating pipe and the second circulating pipe can be reduced, which helps to maintain the efficiency and continuity of the pulverizing process.

[0020] In some embodiments of the first aspect, the first material inlet and the second material inlet comprise a screw structure for unidirectional conveying of the material to the pulverizing device.

[0021] In the embodiments of the present application, the unidirectional conveying function of the screw structure avoids the backflow or reflux phenomenon of the material at the first material inlet and the second material inlet, so that the material circulates and pulverizes in the pulverizing device according to the predetermined path. Not only the pulverizing efficiency of the material is improved, but also the equipment wear and energy loss caused by the backflow of the material are reduced.

[0022] In some embodiments of the first aspect, the crushing device comprises a first discharge port located at the first circulating pipe and / or a second discharge port located at the second circulating pipe, the first discharge port and the first inlet port being sequentially arranged along the circulation direction of the material in the first circulating pipe, and the second discharge port and the second inlet port being sequentially arranged along the circulation direction of the material in the second circulating pipe.

[0023] In the embodiments of the present application, the first discharge port and the first inlet port are sequentially arranged along the circulation direction of the material in the first circulating pipe, and the second discharge port and the second inlet port are sequentially arranged along the circulation direction of the material in the second circulating pipe, so that the material can participate in crushing more uniformly during circulation, the material can flow orderly in the pipe, the possibility of excessive crushing or insufficient crushing of local material is reduced, and the quality consistency of the crushed product is improved.

[0024] In some embodiments of the first aspect, the first circulating pipe comprises a first grading device located in the first circulating pipe and connected with the first discharge port for grading the material, and / or the second circulating pipe comprises a second grading device located in the second circulating pipe and connected with the second discharge port for grading the material.

[0025] In the embodiments of the present application, the first grading device and the second grading device can both screen the material according to the preset particle size standard, which improves the consistency of the particle size of the final product and greatly improves the product quality. The grading device is arranged in the circulating pipe to realize real-time synchronization of material crushing and grading. The material does not need additional time and equipment for special grading operation during circulation, which greatly shortens the overall production cycle. The material reaches the preset particle size and can be immediately discharged from the discharge port, avoiding the invalid residence and excessive crushing of the material in the crushing device, and improving the utilization rate and production efficiency of the equipment.

[0026] In some embodiments of the first aspect, the first circulating pipe comprises a first filtering device located in the first circulating pipe and connected with the first discharge port for separating the gas flow from the material, and / or the second circulating pipe comprises a second filtering device located in the second circulating pipe and connected with the second discharge port for separating the gas flow from the material.

[0027] In the embodiments of the present application, by arranging the first filtering device and the second filtering device, the excess gas flow in the crushing device can be removed, and the material can continue to flow in the crushing device according to the particle size requirement and shape requirement of the material, increase the collision frequency of the material, obtain the material meeting the particle size requirement, or make all the material achieve ultra-fine crushing. At the same time, the crushing time is increased, and the shape of the material is adjusted in the continuous collision and grinding, improving the shaping effect of the material.

[0028] In some embodiments of the first aspect, the installation direction of the first inlet and the second inlet forms a second included angle with the axis of the crushing pipeline, and the second included angle is greater than or equal to 25° and less than or equal to 75°.

[0029] In the embodiments of the present application, the installation direction of the first inlet and the second inlet forms a second included angle of 25° to 75° with the axis of the crushing pipeline, so that the material can smoothly enter the crushing pipeline, effectively reducing the collision of the material with the pipeline wall, reducing energy loss, improving energy utilization, and uniformly distributing the impact force of the material on the pipeline, reducing the risk of pipeline deformation and rupture, prolonging the service life of the equipment, and optimizing the operation performance of the crushing device.

[0030] In some embodiments of the first aspect, the first nozzle and the second nozzle are Laval nozzles.

[0031] In the embodiments of the present application, the first nozzle and the second nozzle are Laval nozzles, which can effectively convert the pressure energy of high-pressure gas into kinetic energy of the material, so that the material can obtain more kinetic energy, thereby fully utilizing the energy for collision crushing during the crushing process.

[0032] In some embodiments of the first aspect, the material of the crushing pipeline includes polyurethane, ceramic, or silicon carbide.

[0033] In the embodiments of the present application, polyurethane, ceramic, or silicon carbide has good wear resistance, and appropriate crushing pipeline materials can be selected according to different material properties, crushing environments, and work requirements to maintain the safe operation of the crushing device and increase the service life of each pipeline.

[0034] In a second aspect, the present application provides a crushing system, comprising the crushing device of the first aspect and a high-pressure gas source, and the high-pressure gas source is connected to the first nozzle and the second nozzle in the crushing device. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 FIG. 1 is a structural diagram of a crushing device according to an embodiment of the present application;

[0036] Figure 2 FIG. 2 is a cross-sectional view of a crushing pipeline according to an embodiment of the present application;

[0037] Figure 3 FIG. 3 is another structural diagram of a crushing device according to an embodiment of the present application;

[0038] Figure 4 FIG. 4 is still another structural diagram of a crushing device according to an embodiment of the present application;

[0039] Figure 5 FIG. 5 is yet another structural diagram of a crushing device according to an embodiment of the present application;

[0040] Figure 6Another structural diagram of the pulverizing device of the embodiment of the present application;

[0041] Figure 7 Another structural diagram of the pulverizing device of the embodiment of the present application;

[0042] Figure 8 Another structural diagram of the pulverizing device of the embodiment of the present application.

[0043] In the drawings, the drawings are not drawn according to the actual proportion.

[0044] Reference signs:

[0045] 1-pulverizing device; 10-pulverizing pipeline; 101-first end; 102-second end; 103-third end; 104-first nozzle; 105-second nozzle; 11-first circulating pipeline; 111-first inlet; 112-first outlet; 1121-first grading device; 12-second circulating pipeline; 121-second inlet; 122-second outlet; 1221-second grading device; 13-intermediate pipeline. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be described below with reference to the drawings.

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0048] Unless otherwise defined, all technical and scientific terms used in the present application have the same meanings as those commonly understood by those skilled in the art to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing the specific embodiments of the present application, and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the present application and the above description of drawings are used to distinguish different objects, not to describe a particular order or primary and secondary relationship.

[0049] Reference within this application to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. As used in this application, the term "or" is intended to mean an inclusive "or" rather than an exclusive "or". That is, unless specified otherwise, or clear from context, "X employs A or B" means that X employs A or B or both. The term "a" or "an" is defined as one or more unless explicitly indicated to the contrary or otherwise evident from the context.

[0050] In the description of the application, it is necessary to point out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "attachment" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0051] In this application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. In addition, the character " / " in this application generally represents that the front and rear associated objects have an "or" relationship.

[0052] In the embodiments of the application, the same reference signs represent the same parts, and for the sake of brevity, the detailed description of the same parts is omitted in different embodiments. It should be understood that the thickness, length and width of various components in the embodiments of the application shown in the drawings, and the overall thickness, length and width of the integrated device are only exemplary and should not constitute any limitation on the application.

[0053] "Multiple" appearing in this application refers to two or more (including two), and similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0054] If not specifically stated, all embodiments and optional embodiments of the application can be combined with each other to form new technical solutions.

[0055] If not specifically stated, all technical features and optional technical features of the application can be combined with each other to form new technical solutions.

[0056] In the industrial production process, the crushing of materials is an important processing link. The existing crushing device has limited crushing times in the crushing process, and the shaping effect of the material is poor. In some cases, there are problems such as low crushing efficiency and uneven particle size.

[0057] Based on the above considerations, this application provides a pulverizing device that can increase the number of pulverization cycles and improve the pulverizing effect. The pulverizing device provided in this application includes a pulverizing pipe, a first circulation pipe, and a second circulation pipe. The pulverizing pipe includes a first end and a second end for material entry, and a third end for material exit, the third end being located between the first end and the second end. The first circulation pipe connects the first end and the third end for conveying material; the second circulation pipe connects the second end and the third end for conveying material. The pulverizing pipe also includes a first nozzle near the first end and a second nozzle near the second end. The first nozzle is used to spray material from the first end to the third end, and the second nozzle is used to spray material from the second end to the third end. The first end and the second end are arranged opposite each other so that material from the first end collides with material from the second end and exits from the third end.

[0058] In this pulverizing device, the first and second nozzles are positioned close to the first and second ends, respectively, allowing material to be injected at high speed into the pulverizing pipe from both ends. The opposing collisions generate a powerful impact, improving pulverizing efficiency and quality, ensuring the material is thoroughly crushed. A first circulation pipe connects the first and third ends of the pulverizing pipe, and a second circulation pipe connects the second and third ends. Material enters the first and second circulation pipes from the middle third end, establishing a material circulation path and increasing the number of collisions. This allows insufficiently pulverized material to continuously participate in the pulverizing process. This achieves efficient and stable operation of the entire pulverizing process, improving the pulverizing effect.

[0059] Figure 1 This is a structural diagram of the pulverizing device according to an embodiment of this application. Figure 1 As shown, the crushing device 1 includes a crushing pipe 10, a first circulation pipe 11, and a second circulation pipe 12. The crushing pipe 10 includes a first end 101 and a second end 102 for material entry, and a third end 103 for material exit. The third end 103 is located between the first end 101 and the second end 102. The first circulation pipe 11 connects the first end 101 and the third end 103 and is used to transport materials. The second circulation pipe 12 connects the second end 102 and the third end 103 and is used to transport materials. The crushing pipe 10 also includes a first nozzle 104 near the first end 101 and a second nozzle 105 near the second end 102. The first nozzle 104 is used to spray materials from the first end 101 to the third end 103, and the second nozzle 105 is used to spray materials from the second end 102 to the third end 103. The first end 101 and the second end 102 are arranged opposite each other so that the materials from the first end 101 and the materials from the second end 102 collide with each other and then exit from the third end 103.

[0060] It should be understood that the crushing device 1 can be used to increase the number of collisions between materials by circulating, so as to crush various raw materials to meet the requirements of ultra-fine particle size, and the prepared ultra-fine powder has uniform particle size distribution. At the same time, due to multiple collisions, the shaping effect of the material can be improved, that is, the particle morphology is regular.

[0061] It should be understood that the ultra-fine powder has applications in many fields, for example, it can be applied to the battery manufacturing industry and can be used as a positive active material in the preparation of battery monomers. The active material can include at least one of the following materials: lithium-containing phosphates, lithium transition metal oxides, and their respective modified compounds. However, the present application is not limited to these materials, and other conventional materials that can be used as positive active materials for batteries can also be used. These positive active materials can be used alone or in combination with two or more. Among them, examples of lithium-containing phosphates can include but are not limited to at least one of lithium iron phosphate (such as LiFePO4 (also referred to as LFP for short)), a composite material of lithium iron phosphate and carbon, lithium manganese phosphate (such as LiMnPO4), a composite material of lithium manganese phosphate and carbon, lithium manganese iron phosphate, and a composite material of lithium manganese iron phosphate and carbon. Examples of lithium transition metal oxides can include but are not limited to at least one of lithium cobalt oxide (such as LiCoO2), lithium nickel oxide (such as LiNiO2), lithium manganese oxide (such as LiMnO2, LiMn2O4), lithium nickel cobalt oxide, lithium manganese cobalt oxide, lithium nickel manganese oxide, lithium nickel cobalt manganese oxide (such as LiNi 1 / 3 Co 1 / 3Mn 1 / 3 O2 (also referred to as NCM 333 for short), LiNi 0.5 Co 0.2 Mn 0.3 O2 (also referred to as NCM 523 for short), LiNi 0.5 Co 0.25 Mn 0.25 O2 (also referred to as NCM 211 for short), LiNi 0.6 Co 0.2 Mn 0.2 O2 (also referred to as NCM 622 for short), LiNi 0.8 Co 0.1 Mn 0.1 O2 (also referred to as NCM 811 for short), lithium nickel cobalt aluminum oxide (such as LiNi 0.8 Co 0.15 Al 0.05 O2), and modified compounds thereof. The modified compound refers to a substance obtained by modification means such as doping or coating on the basis of the above-mentioned substances.

[0062] It should be understood that the first end 101 and the second end 102 of the crushing pipeline 10 are oppositely arranged, and the materials can be simultaneously input from opposite directions.

[0063] In the embodiment of the present application, the material of the crushing pipeline 10 can include polyurethane, ceramic or silicon carbide.

[0064] It should be understood that the polyurethane has good elasticity and wear resistance, and can buffer the impact of the materials to a certain extent, reducing the wear caused by the collision of the materials with the pipeline wall. At the same time, the polyurethane has a certain flexibility, which can reduce the stress concentration of the pipeline caused by the collision of the materials. When processing some relatively soft materials with small impact force, the use of the polyurethane material of the crushing pipeline 10 can prolong the service life of the pipeline.

[0065] It should be understood that the ceramic material has high hardness and high wear resistance, and can withstand high-intensity material collision and friction, ensuring the structural integrity of the crushing pipeline 10 during long-term use. The smooth surface can reduce the friction of the materials in the pipeline, helping the smooth flow of the materials, and can effectively resist the erosion of some corrosive materials.

[0066] It should be understood that the silicon carbide has high hardness, high strength and good chemical stability. The thermal conductivity of silicon carbide is also relatively high. If a lot of heat is generated during the crushing process, the heat can be quickly conducted away, avoiding local overheating and affecting the performance of the crushing pipeline 10.

[0067] In the embodiment of the present application, the materials of the first circulating pipe 11, the second circulating pipe 12 and the intermediate pipeline 13 can also include polyurethane, ceramic or silicon carbide.

[0068] In the embodiment of the present application, according to different material properties, crushing environment and working requirements, the appropriate material of the crushing pipeline 10 can be selected to maintain the operation safety of the crushing device 1 and increase the service life of each pipeline.

[0069] It should be understood that the first circulating pipe 11 connects the first end 101 and the third end 103 to form a circulating loop of the materials. After the materials are output from the third end 103, the materials can be returned to the first end 101 through the first circulating pipe 11.

[0070] It should be understood that the first end 101, the second end 102 and the third end 103 are three ports of the crushing pipeline 10, and the first end 101 and the second end 102 are two ports of the two ends of the crushing pipeline 10, which are the starting points of the materials entering the crushing pipeline 10. The third end 103 is an opening in the middle of the crushing pipeline 10.

[0071] It should be understood that the third end 103 can be located at the middle position between the first end 101 and the second end 102.

[0072] It should be understood that the second circulating pipe 12 connects the second end 102 and the third end 103 to form a circulating loop of the material. After the material is output from the third end 103, it can be re-entered into the second end 102 through the second circulating pipe 12.

[0073] In some embodiments, a first spray pipe 104 is arranged near the first end 101 and a second spray pipe 105 is arranged near the second end 102 inside the crushing pipeline 10. The first spray pipe 104 can spray the material from the first end 101 to the third end 103, and the second spray pipe 105 can spray the material from the second end 102 to the third end 103. During the conveying process, since the first end 101 and the second end 102 are oppositely arranged, the material enters from opposite directions, collides inside the pipeline under the action of the airflow of the first spray pipe 104 and the second spray pipe 105, and the crushing of the material is realized.

[0074] It should be understood that the design of the first spray pipe 104 and the second spray pipe 105 can consider the physical properties of the material and the required crushing effect, and the pipe diameter, spray angle, spray speed and other parameters can be adjusted according to the hardness, viscosity, flowability and other properties of the material. For example, for materials with high hardness, the spray speed of the spray pipe can be appropriately increased to enhance the collision force between the materials and improve the crushing effect; for materials with high viscosity, the pipe diameter and spray angle of the spray pipe can be optimized to prevent the material from being blocked in the pipeline.

[0075] In the embodiments of the present application, when the material enters the crushing pipeline 10 from the first end 101 and the second end 102 respectively, the first spray pipe 104 and the second spray pipe 105 will spray the material towards the third end 103 at a certain flow rate and pressure. During the conveying process of the material from the two ends to the third end 103, since their directions of movement are opposite, the material will collide intensively inside the crushing pipeline 10, and this collision will gradually break the particles of the material, achieving the purpose of crushing. The crushed material and the airflow mixture reach the third end 103, and then enter the first circulating pipe 11 and the second circulating pipe 12 from the third end 103, and then return to the first end 101 or the second end 102 along the first circulating pipe 11 and the second circulating pipe 12, re-enter the crushing pipeline 10, and perform the above collision step, forming a circulating crushing process of the material, until the required particle size and shaping effect are achieved.

[0076] In some embodiments, flow regulating valves and particle size detection devices can be arranged on the first circulating pipe 11 and the second circulating pipe 12. The flow regulating valves can control the circulating flow of the material according to the crushing requirements, so as to avoid too much or too little material entering the first end 101 and the second end 102, affecting the crushing effect; the particle size detection devices can monitor the particle size of the material in real time, and only allow the material that does not meet the crushing requirements to enter the first circulating pipe 11, so as to ensure that the material entering the first end 101 can be effectively re-crushed.

[0077] It should be understood that the size of the third end 103 can be determined according to the size of the first circulating pipe 11 and the second circulating pipe 12, so that the material after collision can enter the first end 101 and the second end 102 from the third end 103.

[0078] It should be understood that the first circulating pipe 11 and the second circulating pipe 12 can make the material continuously collide to achieve the crushing requirement or improve the shaping effect. Among them, the crushing refers to making the particle size of the material particles smaller, and the shaping refers to repeatedly colliding to polish the surface of the micro-powder particles to make the surface smoother and more spherical when the crushing reaches the limit.

[0079] In the embodiment of the application, the first spray pipe 104 and the second spray pipe 105 are respectively arranged close to the first end 101 and the second end 102, so that the material is sprayed into the crushing pipeline 10 at high speed from both ends, collides oppositely to generate strong impact force, improves the crushing efficiency and quality, and makes the material can be fully broken. The first circulating pipe 11 connects the first end 101 and the third end 103 of the crushing pipeline 10, and the second circulating pipe 12 connects the second end 102 and the third end 103 of the crushing pipeline 10, so that the material enters the first circulating pipe 11 and the second circulating pipe 12 from the third end 103 located in the middle, constructs a material circulating path, increases the collision times of the material, and makes the material not fully crushed can continue to circulate and participate in crushing. Realize the efficient and stable operation of the whole crushing process, improve the crushing effect.

[0080] Figure 2 It is a cross-sectional view of the crushing pipeline of the embodiment of the application. As shown in Figure 2 , the crushing pipeline 10 includes a first spray pipe group, the first spray pipe group includes a plurality of first spray pipes 104 located on the same cross section of the crushing pipeline 10 and uniformly distributed along the circumferential direction of the cross section; and / or the crushing pipeline 10 includes a second spray pipe group, the second spray pipe group includes a plurality of second spray pipes 105 located on the same cross section of the crushing pipeline 10 and uniformly distributed along the circumferential direction of the cross section.

[0081] It should be understood that Figure 2 It is Figure 1 The cross-sectional view at the cross-sectional position A shown in the figure, for the convenience of description, the number of first spray pipes 104 is not shown according to the number of first spray pipes 104 in Figure 1 .

[0082] It should be understood that the plurality of first spray pipes 104 can constitute a first spray pipe group, and the plurality of second spray pipes 105 can constitute a second spray pipe group.

[0083] It should be understood that the first nozzle group is arranged on the crushing pipeline 10, and the first nozzle group is composed of a plurality of first nozzles. These first nozzles 104 are located on the same cross section of the crushing pipeline 10 and are uniformly distributed along the circumferential direction of the cross section. For example, in a circular cross-section of the crushing pipeline 10, if four first nozzles 104 are arranged, they will be uniformly distributed on the circumference at an interval of 90°.

[0084] In the embodiment of the application, taking the first nozzle group as an example, when the material enters the crushing pipeline 10 from the first end 101, each nozzle in the first nozzle group simultaneously sprays high-pressure gas. Because the nozzles are uniformly distributed, the material will be subjected to balanced thrust in the axial direction of the crushing pipeline 10 in the circumferential direction, and the force perpendicular to the axial direction of the crushing pipeline 10 will be offset by the plurality of first nozzles 104 uniformly distributed. The collision opportunity between the materials is increased, and the crushing effect is improved.

[0085] It should be understood that the first nozzle group makes the crushing of the material in the crushing pipeline 10 more uniform. Compared with a single or a small number of first nozzles 104, a plurality of first nozzles 104 uniformly distributed along the circumference can cover a larger crushing area, avoiding the situation that the material is not crushed enough or is excessively crushed in some areas.

[0086] It should be understood that the second nozzle group is similar in structure to the first nozzle group, and will not be described here.

[0087] It should be understood that the crushing pipeline 10 can include the first nozzle group and the second nozzle 105, the second nozzle group first nozzle 104, or the first nozzle group and the second nozzle group.

[0088] It should be understood that the number of nozzles can be determined according to the crushing requirements of the material, the size of the crushing device 1, etc.

[0089] In the embodiment of the application, by reasonably designing the number and distribution of the nozzles, the material can make full use of the energy of the high-pressure gas in the crushing pipeline 10. The coordinated spraying of the plurality of nozzles can more uniformly transmit the energy of the high-pressure gas to the material, avoiding the concentrated waste of energy. The material collides with each other in a more efficient way under the action of the spraying force in multiple directions, converting the kinetic energy of the gas into the crushing energy of the material, thereby improving the energy utilization rate of the entire crushing device 1 and improving the crushing efficiency.

[0090] In the embodiment of the application, the crushing pipeline 10 includes a plurality of first nozzle groups and / or a plurality of second nozzle groups, and the spraying pressure and number of the first nozzles 104 and the second nozzles 105 are the same.

[0091] It should be understood that a plurality of first nozzle groups are arranged in the crushing pipeline 10, and each first nozzle group comprises a plurality of first nozzles 104 uniformly distributed along the circumferential direction of the same cross section of the crushing pipeline 10. The plurality of first nozzle groups are spaced apart in the axial direction of the crushing pipeline 10. For example, in a long crushing pipeline 10, a first nozzle group can be arranged at a certain distance, and the number of nozzles in each nozzle group is determined according to the characteristics of the material and the production requirements, and is uniformly distributed in the circumferential direction.

[0092] In the embodiment of the present application, when the material enters from the first end 101 of the crushing pipeline 10, it will first be affected by the first first nozzle group. These nozzles spray high-pressure gas to push the material to move along the axial direction of the crushing pipeline 10, and the second first nozzle group will continue to provide a pushing force to the material until the material collides with the material entering from the second end 102. The relay action mode of multiple nozzle groups can allow the material to continuously receive the force in the axial direction of the entire crushing pipeline 10.

[0093] It should be understood that the structure, layout, etc. of the plurality of second nozzle groups are similar to those of the plurality of first nozzle groups, and will not be described here.

[0094] It should be understood that the number of nozzle groups and the distance between nozzle groups can be determined according to the crushing requirements of the material, the scale of the crushing device 1, etc., and the present application is not limited.

[0095] In the embodiment of the present application, the plurality of first nozzle groups and the plurality of second nozzle groups jointly act to spray the material to the third end 103 in the relay action mode of multiple nozzle groups, avoiding the one-time concentrated release and waste of energy. The energy of the high-pressure gas is gradually transferred to the material, allowing the material to fully absorb the energy in continuous movement and collision, thereby achieving efficient crushing.

[0096] It should be understood that the spraying pressure and number of the first nozzles 104 and the second nozzles 105 are the same, and a symmetrical material spraying mode can be constructed in the crushing pipeline 10. When the number of nozzles and the spraying pressure are equal, the distribution of the materials sprayed from the first end 101 and the second end 102 in the pipeline is more symmetrical.

[0097] It should be understood that the spraying pressure and number of the first nozzles 104 and the second nozzles 105 are the same, and the horizontal component forces of the airflow sprayed by the first nozzles 104 and the second nozzles 105 are the same. The materials entering from the first end 101 and the second end 102 can collide at the same speed and in opposite directions.

[0098] It should be understood that the spraying pressure of the first nozzles 104 and the second nozzles 105 can be determined according to the characteristics of the material, production requirements, etc.

[0099] It should be understood that the number of the first nozzles 104 and the second nozzles 105 can be determined according to the characteristics of the material, production requirements, etc.

[0100] In some embodiments, the number of the first spray pipes 104 and the second spray pipes 105 can be greater than or equal to 1 and less than or equal to 4.

[0101] In some embodiments, the crushing device 1 can include one or more first spray pipes 104 and one or more second spray pipes 105.

[0102] In some embodiments, the plurality of first spray pipes 104 can constitute one or more first spray pipe groups, and the plurality of second spray pipes 105 can constitute one or more second spray pipe groups.

[0103] In the embodiments of the present application, the first spray pipes 104 and the second spray pipes 105 with the same injection pressure and quantity cooperate with each other, so that the materials can interact in a symmetrical collision mode, and the materials can be quickly and sufficiently collided and crushed in the crushing pipeline 10, thereby improving the crushing efficiency of the materials.

[0104] Figure 3 Another structural view of the crushing device in the embodiments of the present application is shown in FIG. 2. As shown in FIG. 2, the injection directions of the first spray pipes 104 and the second spray pipes 105 form a first included angle with the axis of the crushing pipeline 10, and the first included angle is greater than or equal to 25° and less than or equal to 75°. Figure 3

[0105] It should be understood that Figure 3 In the present application, α represents the first included angle.

[0106] It should be understood that the first included angle can be greater than or equal to 30° and less than or equal to 60°.

[0107] It should be understood that the first included angle can be 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, or 75°.

[0108] It should be understood that if the first included angle is too small, the airflow moves almost parallel to the axis of the crushing pipeline 10 after being sprayed. This makes the collision between the materials mainly concentrated in a small area, and the collision force is insufficient, so that most of the kinetic energy of the materials cannot be effectively converted into crushing energy, resulting in that the materials are difficult to be fully crushed, especially for the materials with high hardness, the crushing effect is extremely poor.

[0109] ​It should be understood that if the first included angle is too large, the jet direction is close to perpendicular to the axis of the crushing pipeline 10, and after entering the crushing pipeline 10, the material cannot be subjected to power along the axis direction of the crushing pipeline 10, and most of the material will directly impact the inner wall of the crushing pipeline 10, rather than colliding with the material from the other end. This not only causes serious wear of the inner wall of the pipeline, shortening the service life of the equipment, but also causes a large amount of kinetic energy of the material to be consumed in the collision with the wall of the pipeline, which cannot achieve efficient material crushing. Moreover, too large an included angle can also cause the material to form a local accumulation in the crushing pipeline 10, hindering the normal flow of the subsequent material, further reducing the crushing efficiency.

[0110] In the embodiments of the present application, the first nozzle 104 and the second nozzle 105 are jetted at a first included angle of 25° to 75° with the axis of the crushing pipeline 10. At this included angle, the material jetted into the crushing pipeline 10 can collide with each other at a suitable speed, avoiding the problems of material concentration and insufficient collision caused by too small a jet angle, and the problem of material being easy to hit the wall and kinetic energy loss caused by too large an angle. A suitable included angle enables the material to achieve high-intensity collision in the pipeline, effectively improving the crushing efficiency, optimizing the crushing effect, and enhancing the working performance of the entire crushing device 1.

[0111] In the embodiments of the present application, the first nozzle 104 and the second nozzle 105 are connected to a high-pressure gas source to jet high-pressure gas into the crushing pipeline 10.

[0112] It should be understood that high-pressure gas can provide power for the movement of the material. During the crushing process, when the high-pressure compressed gas rapidly expands in the nozzle, it will produce a high-speed gas flow, which will be ejected from the nozzle at a very high speed to push the material to move. When the high-speed moving material collides with each other in the crushing pipeline 10, it can produce a huge impact force, thereby effectively breaking the material.

[0113] It should be understood that high-pressure gas, as a medium for driving the movement of the material in the first nozzle 104 and the second nozzle 105, can include inert gas, dry air and other types. Inert gas, such as argon, helium and the like, has very stable chemical properties and almost no chemical reaction with the material during the crushing process. It can be used to process some materials with high chemical activity, easy oxidation or easy reaction with common gases. Dry air, compared with ordinary air, has the advantages of relatively low cost and wide source because it removes water and impurities. It can be used to crush some materials that are not sensitive to moisture and have relatively stable chemical properties. At the same time, after being compressed, the pressure and energy of dry air can meet the crushing requirements of most common materials, which helps to reduce the operating cost of the crushing device 1 while ensuring the crushing efficiency.

[0114] It should be understood that in actual application, appropriate high-pressure gas can be selected flexibly according to the specific characteristics of the material and the requirements of the crushing process.

[0115] In the embodiment of the present application, the first nozzle 104 and the second nozzle 105 are connected to a high-pressure gas source. The high-pressure gas source sprays high-pressure gas into the pulverizing pipeline 10 through the first nozzle 104 and the second nozzle 105, thereby providing strong power for the material and enabling the material to collide with each other at high speed, thereby enhancing the pulverizing effect.

[0116] In the embodiment of the present application, the first nozzle 104 and the second nozzle 105 can be Laval nozzles.

[0117] It should be understood that a Laval nozzle is a variable cross-section nozzle, which has the structural feature of being first contracted and then expanded. The inlet end has a relatively large opening, which is conducive to receiving and guiding the fluid driving the material into the nozzle. As the fluid flows in the nozzle, the pipeline cross-section gradually narrows to form a contraction section. In the contraction section, according to the continuity equation and Bernoulli equation, the velocity of the fluid continuously increases, while the pressure and temperature correspondingly decrease. When the fluid reaches the throat of the nozzle, the flow rate just reaches the local sound speed, and thereafter, the pipeline cross-section begins to gradually expand into an expansion section. In the expansion section, the fluid continues to accelerate, thereby enabling the material to obtain an extremely high jet speed.

[0118] It should be understood that the Laval nozzle usually adopts high-strength, high-temperature-resistant, and corrosion-resistant materials. Common metal materials include stainless steel, titanium alloy, etc. For different application scenarios, high-performance ceramic materials or composite materials can also be used to meet higher performance requirements.

[0119] It should be understood that by adjusting the pressure and other parameters of the high-pressure gas, the Laval nozzle can generate supersonic gas flow with different speeds and energies, thereby enabling effective pulverization of materials with different hardness, particle size, viscosity, and other properties.

[0120] In the embodiment of the present application, the first nozzle 104 and the second nozzle 105 are Laval nozzles, which can effectively convert the pressure energy of the high-pressure gas into kinetic energy of the material, thereby enabling the material to obtain more kinetic energy, so that the energy can be fully utilized for collision pulverization in the pulverization process.

[0121] Figure 4 Another structure diagram of the pulverizing device in the embodiment of the present application. As shown in Figure 4 The pulverizing device 1 further includes an intermediate pipeline 13 arranged along the direction of gravity, the axis of the intermediate pipeline 13 being perpendicular to the axis of the pulverizing pipeline 10, one end of the intermediate pipeline 13 being connected to the third end 103, wherein the first circulating pipeline 11 and the second circulating pipeline 12 are connected to the third end 103 by connecting the other end of the intermediate pipeline 13.

[0122] It should be understood that one end of the intermediate pipeline 13 is connected to the third end 103 of the pulverizing pipeline 10, which enables the pulverized material to enter the intermediate pipeline 13 from the pulverizing pipeline 10.

[0123] It should be understood that the pulverizing pipeline 10 is arranged in a horizontal direction, and the intermediate pipeline 13 is arranged in a vertical direction, and the two are perpendicular to each other.

[0124] It should be understood that the material and the airflow can be fully mixed in the intermediate pipeline 13 after the pulverizing pipeline 10 acts on the material.

[0125] It should be understood that the first circulating pipeline 11 and the second circulating pipeline 12 are connected to the third end 103 by connecting the other end of the intermediate pipeline 13, that is, the pulverized material enters from one end of the intermediate pipeline 13, and after moving to the other end of the intermediate pipeline 13, it enters the first circulating pipeline 11 and the second circulating pipeline 12, respectively.

[0126] In the embodiment of the present application, the intermediate pipeline 13 can uniformly distribute the mixture of the airflow and the material to the first circulating pipeline 11 and the second circulating pipeline 12.

[0127] In the embodiment of the present application, the section of the intermediate pipeline 13 connected to the first circulating pipeline 11 and the second circulating pipeline 12 can include a flow distribution structure, that is, a flow distribution piece inserted into the intermediate pipeline 13, the length of the flow distribution piece is less than the length of the intermediate pipeline 13, and the mixture of the airflow and the material can be uniformly distributed to the first circulating pipeline 11 and the second circulating pipeline 12 when the pulverized material moves to the other end of the intermediate pipeline 13.

[0128] In the embodiment of the present application, the intermediate pipeline 13 communicates the pulverizing pipeline 10 with the first circulating pipeline 11 and the second circulating pipeline 12, which can make the material fully mixed and stably distributed when entering the circulating pipeline. The uniformity and stability of the material in the circulating pulverizing process are improved, thereby improving the overall pulverizing efficiency of the pulverizing device 1 and the consistency of the product quality.

[0129] In the embodiment of the present application, the first circulating pipeline 11 and the second circulating pipeline 12 are axisymmetric along the axis of the intermediate pipeline 13.

[0130] It should be understood that when the material enters the first circulating pipeline 11 and the second circulating pipeline 12 from the intermediate pipeline 13, due to the axisymmetric structure of the two, the material can be uniformly distributed.

[0131] It should be understood that the first circulating pipeline 11 and the second circulating pipeline 12 can be circular arc-shaped.

[0132] In some embodiments, the axisymmetric layout of the first circulating pipeline 11 and the second circulating pipeline 12 makes the stress of the entire pulverizing device 1 more uniform. When the device is running, the pressure, impact force generated by the material flowing in the circulating pipeline, and the gravity of the pipeline itself, etc. can be distributed symmetrically on both sides. The vibration, deformation and wear of parts caused by uneven stress are effectively reduced.

[0133] In some embodiments, since the flow state of the material in the two circulating pipes is consistent, when the material re-enters the crushing pipeline 10 from the circulating pipes, their speed, direction and other parameters also have similarity and symmetry.

[0134] In the embodiments of the present application, the first spray pipe 104 and the second spray pipe 105 can also be axisymmetric along the axis of the intermediate pipeline 13.

[0135] In the embodiments of the present application, the first circulating pipe 11 and the second circulating pipe 12 are designed to be axisymmetric along the axis of the intermediate pipeline 13, which can make the material evenly flow from the intermediate pipeline 13 to the first circulating pipe 11 and the second circulating pipe 12, so that the flow rate and force state of the material during the circulation process can be kept consistent, stable and continuous. Not only can it balance the force of the crushing device 1, reduce vibration, deformation and part wear, reduce failure, prolong service life, but also make the material collide again in the crushing pipeline 10 in the same state or approximately the same state, improve the crushing effect.

[0136] Figure 5 Another structure diagram of the crushing device in the embodiments of the present application. As shown in Figure 5 The crushing device 1 includes a first inlet 111 of the first circulating pipe 11 and a second inlet 121 of the second circulating pipe 12, the first inlet 111 is located on the side of the first circulating pipe 11 close to the first end 101, and the second inlet 121 is located on the side of the second circulating pipe 12 close to the second end 102.

[0137] It should be understood that the first inlet 111 and the second inlet 121 are used to input material into the crushing pipeline 10.

[0138] It should be understood that the first inlet 111 and the second inlet 121 can continuously input material into the crushing pipeline 10, or can input material at one time.

[0139] It should be understood that the first inlet 111 and the second inlet 121 can be axisymmetric about the axis of the intermediate pipeline 13.

[0140] It should be understood that by setting the position and angle of the inlet, the material entering the crushing pipeline 10 from the inlet has a suitable angle and speed, which can produce a more intense collision with the material from the other direction, improving the crushing effect.

[0141] In the embodiments of the present application, taking the first inlet 111 as an example, the first inlet 111 is located on the side of the first circulating pipe 11 close to the first end 101, which can make the material enter the crushing pipeline 10 in the shortest path. The material enters the crushing pipeline 10 from the first inlet 111 and the second inlet 121, and can collide with each other under the action of the first spray pipe 104 and the second spray pipe 105.

[0142] It should be understood that the second inlet 121 is similar to the first inlet 111, which will not be described here.

[0143] In the embodiments of the present application, the first inlet 111 is close to the first end 101, and the second inlet 121 is close to the second end 102. The material can be quickly pushed into the crushing process by the first nozzle 104, reducing the residence time and energy loss of the material in the first circulating pipe 11 and the second circulating pipe 12, and helping to maintain the efficiency and continuity of the crushing process.

[0144] In the embodiments of the present application, the first inlet 111 and the second inlet 121 include a screw structure for unidirectional conveying of the material to the crushing device 1.

[0145] It should be understood that the working principle of the screw structure is to use the friction and extrusion force between the screw blade and the material to convey the material along the axial direction of the screw through the rotation of the screw. The screw is composed of a shaft with a spiral blade. The spiral blade is distributed in a spiral shape along the direction of the shaft. When the screw rotates, the spiral blade pushes the material to move in the direction of the inside of the crushing device 1.

[0146] It should be understood that the material will move along the spiral direction of the blade to the inside of the crushing device 1 under the pushing of the spiral blade, and due to the blocking of the blade and the restriction of the pushing direction, it is difficult to move in the opposite direction, so as to achieve unidirectional conveying of the material.

[0147] In the embodiments of the present application, the unidirectional conveying function of the screw structure avoids the backflow or reflux phenomenon of the material at the first inlet 111 and the second inlet 121, so that the material circulates and crushes in the crushing device 1 according to the predetermined path. This not only improves the crushing efficiency of the material, but also reduces the equipment wear and energy loss caused by the backflow of the material.

[0148] In the embodiments of the present application, the first inlet 111 and the second inlet 121 can also achieve unidirectional conveying of the material by combining butterfly valves and star valves.

[0149] It should be understood that the butterfly valve is composed of a valve body, a butterfly plate, a valve shaft and a handle. The butterfly plate is a disc-shaped component which is installed in the valve body through the valve shaft and can rotate around the shaft. When the butterfly plate is rotated to be parallel to the fluid flow direction, the valve is in the fully open state, and the fluid can flow smoothly; when the butterfly plate is rotated to be perpendicular to the flow direction, the valve is closed, preventing the fluid from passing through. The star valve is mainly composed of a valve body, a rotor, an end cover and a driving device. The rotor has multiple blades (usually star-shaped or similar shape). When the rotor rotates in the valve body, the material can enter the space between the blades from the inlet, and with the rotation of the rotor, the material is brought to the outlet for discharge. The star valve can uniformly convey the material and has a certain sealing property, which can effectively prevent material leakage.

[0150] In the embodiment of the present application, the butterfly valve and the star valve work together when conveying the material in the forward direction. First, the butterfly valve is in the open state, and the material can smoothly enter the connecting channel between the butterfly valve and the star valve. The rotor of the star valve continuously rotates under the action of the driving device, and the material is picked up by the blades one by one and conveyed forward with the rotation of the rotor. Due to the structure and rotation mode of the blades of the star valve, the material can only be pushed forward in the rotation direction of the blades, discharged from the discharge port of the star valve and enter the crushing device 1. When there is a tendency of reverse flow, the butterfly valve and the star valve can effectively prevent it. The butterfly plate of the butterfly valve will have a tendency to close under the action of fluid pressure, thereby reducing the channel area of the reverse material flow. The star valve under the action of the reverse material flow, due to the fixed rotation direction of the rotor, and the shape and arrangement of the blades make it difficult for the reverse material to push the rotor to rotate in the opposite direction. Moreover, the star valve itself has a certain sealing property, and it is difficult for the reverse material to flow in the opposite direction through the gap between the blades.

[0151] Figure 6 Another structural view of the crushing device of the embodiment of the present application. As shown in Figure 6 The crushing device 1 includes a first discharge port 112 located at the first circulating pipe 11 and / or a second discharge port 122 located at the second circulating pipe 12. The first discharge port 112 and the first inlet port 111 are sequentially arranged along the circulation direction of the material in the first circulating pipe 11, and the second discharge port 122 and the second inlet port 121 are sequentially arranged along the circulation direction of the material in the second circulating pipe 12.

[0152] It should be understood that after the material collides, it enters the first circulating pipe 11 and the second circulating pipe 12 respectively after mixing with the airflow through the intermediate pipe 13. Taking the first circulating pipe 11 as an example, along the circulation direction of the material, the material first passes through the first discharge port 112, is classified or filtered, and the material meeting the particle size requirement or shape requirement is discharged from the first discharge port 112. The material that does not meet the particle size requirement or shape requirement continues to move along the circulation direction and mixes with the material to be treated input from the first inlet port 111, and is classified by collision.

[0153] It should be understood that the first discharge port 112 and the second discharge port 122 can be axisymmetric about the axis of the intermediate pipe 13.

[0154] It should be understood that the size of the first discharge port 112 and the second discharge port 122 should be determined according to the particle size, flow rate of the material and the feeding requirements of the subsequent processing equipment. For example, if the feeding port of the subsequent screening equipment is small, the size of the discharge port should be matched to ensure that the material can be smoothly discharged and will not cause blockage. The shape of the discharge port can also be optimized according to the characteristics of the material, such as for viscous material, a larger opening size and a smooth inner wall design can be used to prevent the material from adhering to the inner wall of the discharge port.

[0155] It should be understood that, taking the first circulating pipe 11 as an example, the material sequentially enters and exits the first circulating pipe 11, which reduces the possibility of disorderly flow and accumulation of the material in the pipe. In the first circulating pipe 11, the material flows stably, and the pipe wear and equipment vibration caused by material congestion, uneven collision and the like are reduced.

[0156] In the embodiment of the present application, the first discharge port 112 and the first inlet port 111 are sequentially arranged along the circulation direction of the material in the first circulating pipe 11, and the second discharge port 122 and the second inlet port 121 are sequentially arranged along the circulation direction of the material in the second circulating pipe 12, which can make the material more uniformly participate in the crushing in the circulation process, can make the material orderly flow in the pipe, and reduce the possibility of excessive crushing or insufficient crushing of the local material, thereby improving the quality consistency of the crushed product.

[0157] Figure 7 Another structure diagram of the crushing device in the embodiment of the present application is shown in FIG. 6. As shown in FIG. 6, the first circulating pipe 11 includes a first grading device 1121, and the second circulating pipe 12 includes a second grading device 1221. Figure 7 The first grading device 1121 is located in the first circulating pipe 11 and connected with the first discharge port 112, and is used for grading the material; and / or the second grading device 1221 is located in the second circulating pipe 12 and connected with the second discharge port 122, and is used for grading the material.

[0158] It should be understood that the first grading device 1121 is arranged inside the first circulating pipe 11 and connected with the first discharge port 112. The first grading device 1121 screens the passing material, and the material meeting the outlet particle size requirement is discharged from the first discharge port 112, and the material not meeting the outlet particle size requirement enters the crushing pipeline 10 along the first circulating pipe 11 to continue crushing.

[0159] It should be understood that the first grading device 1121 can be composed of multiple components, such as a screen structure, a driving motor, an adjusting component and the like. The screen structure is a grading component, and the mesh size thereof is accurately designed according to the target material particle size. Different production requirements can require screen meshes with different mesh sizes.

[0160] It should be understood that the second grading device 1221 is similar to the first grading device 1121, and will not be described herein again.

[0161] It should be understood that the crushing device 1 can include the first grading device 1121 in the first circulating pipe 11, can include the second grading device 1221 in the second circulating pipe 12, and can include both the first grading device 1121 in the first circulating pipe 11 and the second grading device 1221 in the second circulating pipe 12.

[0162] It should be understood that the first classifying device 1121 and the second classifying device 1221 can be a classifying wheel, which is a high-speed rotating component, and the working principle thereof is based on the screening of material particles by centrifugal force. The structure of the classifying wheel comprises a wheel body and blades, the wheel body is generally disc-shaped, and the blades are installed on the circumferential part of the wheel body, and the number, shape and angle of the blades can be designed according to the material characteristics and classification requirements.

[0163] In the embodiment of the present application, taking the first classifying device 1121 as an example, when the material flows in the first circulating pipe 11 close to the classifying wheel, the classifying wheel rotates at high speed under the drive of the motor. Due to the action of centrifugal force, the material particles will be subjected to an outward force. Smaller particles, due to their lighter mass, will be subjected to relatively small centrifugal force when passing near the classifying wheel, and can smoothly pass through the classifying wheel along with the airflow or other conveying medium, and be discharged from the first discharge port 112. Larger particles, due to their larger mass, will be subjected to larger centrifugal force, and will be blocked by the blades of the classifying wheel, and thus cannot pass through the classifying wheel, so as to be left in the crushing device 1 to continue to participate in crushing.

[0164] It should be understood that the working parameters of the first classifying device 1121 and the second classifying device 1221 can be flexibly adjusted according to different material characteristics and production requirements.

[0165] In the embodiment of the present application, the first classifying device 1121 and the second classifying device 1221 can screen the material according to the preset particle size standard, which improves the consistency of the particle size of the final product and greatly improves the product quality. The classifying device is arranged in the circulating pipe, so that the material crushing and classification are realized in real time. The material does not need to be subjected to special classification operation by additional time and equipment in the circulating process, so that the overall production cycle is greatly shortened. When the material reaches the preset particle size, it can be immediately discharged from the discharge port, so as to avoid the invalid residence and excessive crushing of the material in the crushing device 1, and improve the utilization rate and production efficiency of the equipment.

[0166] In the embodiment of the present application, the first circulating pipe 11 comprises a first filtering device, which is located in the first circulating pipe 11 and connected with the first discharge port 112, and is used for separating the airflow and the material; and / or the second circulating pipe 12 comprises a second filtering device, which is located in the second circulating pipe 12 and connected with the second discharge port 122, and is used for separating the airflow and the material.

[0167] It should be understood that the first filtering device is arranged in the first circulating pipe 11 and connected with the first discharge port 112. The first filtering device separates the mixture of the material and the airflow passing through, wherein the airflow is discharged from the first discharge port 112, and the material enters the crushing pipeline 10 along the first circulating pipe 11 to continue to be crushed and shaped.

[0168] It should be understood that the primary filtration device can consist of filter elements, a support structure, and sealing components. Filter elements separate airflow from materials and commonly take the form of filter screens, filter bags, or filter cartridges. Filter screens can be selected based on the particle size of the material; a higher mesh size provides higher filtration precision and effectively intercepts fine particles. Filter bags are made of various materials, such as cotton and synthetic fibers, and can be selected for different materials, offering a large filtration area. Filter cartridges are typically made of porous materials, providing high-precision filtration. The support structure secures the filter elements, ensuring their stability under airflow impact. Sealing components are installed at the connections between the filtration device and the circulation pipe or outlet to prevent leakage of unfiltered airflow and materials.

[0169] In this embodiment, after the airflow carrying the material enters the first filter device, the filter element intercepts the material according to its pore size. The material particles are blocked by the filter element and cannot pass through the first discharge port 112, while the airflow can pass smoothly through the filter element and be discharged from the first discharge port 112.

[0170] It should be understood that the second filtration device is similar to the first filtration device, and will not be described in detail here.

[0171] It should be understood that the pulverizing device 1 may include a first filter device in the first circulation pipe 11, or a second filter device in the second circulation pipe 12, or both the first filter device in the first circulation pipe 11 and the second filter device in the second circulation pipe 12.

[0172] In this embodiment, by setting up a first filter and a second filter, excess airflow within the pulverizing device 1 can be eliminated. Simultaneously, based on the particle size and shape requirements of the material, the material continues to flow within the pulverizing device 1, increasing the number of collisions and resulting in material that meets the particle size requirements or achieving ultrafine powder pulverization of all material. Furthermore, by increasing the pulverizing time, the shape of the material is adjusted through continuous collision and grinding, improving the material shaping effect.

[0173] Figure 8 This is another structural diagram of the pulverizing device according to an embodiment of this application. Figure 8 As shown, the installation directions of the first inlet 111 and the second inlet 121 form a second angle with the axis of the crushing pipe 10. The second angle is greater than or equal to 25° and less than or equal to 75°.

[0174] It should be understood that Figure 8 β represents the second included angle.

[0175] It should be understood that the second included angle can be greater than or equal to 30° and less than or equal to 60°.

[0176] It should be understood that the second included angle can be 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°.

[0177] It should be understood that within the range of 25° to 75°, the material can smoothly enter the first circulating pipe 11 and the second circulating pipe 12 from the inclined first inlet 111 and the second inlet 121, reducing the possibility of material accumulation at the connection between the inlet and the circulating pipe.

[0178] In some embodiments, the second included angle range helps to optimize the flow state of the material in the crushing pipeline 10. The material enters the pipeline at a suitable angle, which can form a more stable and uniform flow field in the pipeline, reduce local vortex and material accumulation, ensure the continuity and stability of the crushing process, and further improve the working efficiency and reliability of the crushing device 1.

[0179] It should be understood that when the second included angle is controlled within the range of 25° to 75°, the material can quickly spread to different areas of the pipeline after entering the crushing pipeline 10 from the inlet. The second included angle makes the material have a certain transverse velocity component when entering the pipeline, which promotes the more uniform distribution of the material in the pipeline.

[0180] In some embodiments, the included angle of the first inlet 111 and the second inlet 121 is reasonably set, which effectively reduces the high-speed collision of the material with the pipeline wall. When the included angle is too large, the material is easy to directly impact the pipeline wall, resulting in a large amount of kinetic energy being converted into heat energy and being lost.

[0181] In the embodiments of the present application, the installation direction of the first inlet 111 and the second inlet 121 forms a second included angle of 25° to 75° with the axis of the crushing pipeline 10, so that the material can smoothly enter the crushing pipeline 10, effectively reduce the collision of the material with the pipeline wall, reduce energy loss, improve energy utilization, and make the impact force of the material on the pipeline uniform, reduce the risk of pipeline deformation and rupture, prolong the service life of the equipment, and optimize the operating performance of the crushing device 1.

[0182] According to some embodiments of the present application, the present application also provides a pulverizing system, which can include the pulverizing device 1 and a high-pressure gas source. The pulverizing device 1 includes a pulverizing pipeline 10, a first circulation pipeline 11 and a second circulation pipeline 12. The pulverizing pipeline 10 includes a first end 101 and a second end 102 for material to enter, and a third end 103 for material to exit, the third end 103 being located between the first end 101 and the second end 102. The first circulation pipeline 11 connects the first end 101 and the third end 103 for conveying material. The second circulation pipeline 12 connects the second end 102 and the third end 103 for conveying material. The pulverizing pipeline 10 further includes a first nozzle 104 arranged near the first end 101 and a second nozzle 105 arranged near the second end 102. The first nozzle 104 is used to spray material from the first end 101 to the third end 103, and the second nozzle 105 is used to spray material from the second end 102 to the third end 103. The first end 101 and the second end 102 are arranged oppositely so that the material from the first end 101 and the material from the second end 102 collide with each other and then exit from the third end 103. The high-pressure gas source is connected to the first nozzle 104 and the second nozzle 105 in the pulverizing device 1.

[0183] It should be understood that the high-pressure gas source is used to convey gas into the first nozzle 104 and the second nozzle 105. When the high-pressure gas enters the first nozzle 104 and the second nozzle 105 from the high-pressure gas source, the pressure of the gas can be converted into kinetic energy of the material. The material located at the first end 101 and the second end 102 is pushed to move.

[0184] It should be understood that the pulverizing device 1 can also include the pulverizing device 1 in any of the above embodiments.

[0185] According to some embodiments of the present application, referring to Figures 1 to 8The application provides a crushing device 1, which comprises a crushing pipeline 10, a first circulating pipeline 11, a second circulating pipeline 12 and an intermediate pipeline 13. The crushing pipeline 10 comprises a first end 101 and a second end 102 for material entering, and a third end 103 for material leaving, the third end 103 being located between the first end 101 and the second end 102; the first circulating pipeline 11 is connected with the first end 101 and the third end 103 and used for conveying material; the second circulating pipeline 12 is connected with the second end 102 and the third end 103 and used for conveying material; wherein the crushing pipeline 10 further comprises a first spray pipe 104 arranged close to the first end 101 and a second spray pipe 105 arranged close to the second end 102, the first spray pipe 104 is used for spraying material from the first end 101 to the third end 103, the second spray pipe 105 is used for spraying material from the second end 102 to the third end 103, and the first end 101 and the second end 102 are oppositely arranged so that the material from the first end 101 and the material from the second end 102 collide with each other and then leave from the third end 103. The intermediate pipeline 13 is arranged along the direction of gravity, the axis of the intermediate pipeline 13 is perpendicular to the axis of the crushing pipeline 10, and one end of the intermediate pipeline 13 is connected with the third end 103, wherein the first circulating pipeline 11 and the second circulating pipeline 12 are connected with the third end 103 by connecting the other end of the intermediate pipeline 13. The first circulating pipeline 11 and the second circulating pipeline 12 are axisymmetric along the axis of the intermediate pipeline 13. The material of the crushing pipeline 10 comprises polyurethane, ceramic or silicon carbide.

[0186] The spraying pressure and quantity of the first spray pipe 104 and the second spray pipe 105 are the same. The spraying direction of the first spray pipe 104 and the second spray pipe 105 forms a first included angle with the axis of the crushing pipeline 10, the first included angle is greater than or equal to 25° and less than or equal to 75°. The first spray pipe 104 and the second spray pipe 105 are connected with a high-pressure gas source to spray high-pressure gas into the crushing pipeline 10. The crushing pipeline 10 further comprises a plurality of first spray pipe groups and a plurality of second spray pipe groups, each first spray pipe group comprises a plurality of first spray pipes 104 arranged on the same cross section of the crushing pipeline 10 and uniformly distributed along the circumferential direction of the cross section, and each second spray pipe group comprises a plurality of second spray pipes 105 arranged on the same cross section of the crushing pipeline 10 and uniformly distributed along the circumferential direction of the cross section. The first spray pipe 104 and the second spray pipe 105 are Laval spray pipes.

[0187] The crushing device 1 includes a first inlet 111 located in a first circulation pipe 11 and a second inlet 121 located in a second circulation pipe 12. The first inlet 111 is located on the side of the first circulation pipe 11 near the first end 101, and the second inlet 121 is located on the side of the second circulation pipe 12 near the second end 102. Both the first inlet 111 and the second inlet 121 include screw structures for unidirectionally conveying material to the crushing device 1. The installation direction of the first inlet 111 and the second inlet 121 forms a second angle with the axis of the crushing pipe 10, which is greater than or equal to 25° and less than or equal to 75°.

[0188] The crushing device 1 includes a first discharge port 112 located in the first circulation pipe 11 and / or a second discharge port 122 located in the second circulation pipe 12. The first discharge port 112 and the first inlet port 111 are arranged sequentially along the circulation direction of the material in the first circulation pipe 11, and the second discharge port 122 and the second inlet port 121 are arranged sequentially along the circulation direction of the material in the second circulation pipe 12. The first circulation pipe 11 includes a first classifying device 1121, which is located inside the first circulation pipe 11 and connected to the first discharge port 112 for material classification. The second circulation pipe 12 includes a second classifying device 1221, which is located inside the second circulation pipe 12 and connected to the second discharge port 122 for material classification.

[0189] Optionally, the first circulation pipe 11 includes a first filter device located inside the first circulation pipe 11 and connected to the first outlet 112 for separating airflow and material; the second circulation pipe 12 includes a second filter device located inside the second circulation pipe 12 and connected to the second outlet 122 for separating airflow and material.

[0190] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A pulverizing device characterized by comprising: The application relates to a pulverizing device. The pulverizing device comprises a pulverizing pipeline (10) having a first end (101) and a second end (102) for material entering and a third end (103) for material leaving, a first circulating pipeline (11) connecting the first end (101) and the third end (103) for conveying material, and a second circulating pipeline (12) connecting the second end (102) and the third end (103) for conveying material. The pulverizing pipeline (10) further comprises a first nozzle group (104) and a second nozzle group (105), wherein the first nozzle group (104) comprises a plurality of first nozzles (104) arranged on the same cross section of the pulverizing pipeline (10) and uniformly distributed along the circumferential direction of the cross section, and the second nozzle group (105) comprises a plurality of second nozzles (105) arranged on the same cross section of the pulverizing pipeline (10) and uniformly distributed along the circumferential direction of the cross section. The first nozzles (104) and the second nozzles (105) have the same jetting pressure and the same number. The jetting directions of the first nozzles (104) and the second nozzles (105) form a first included angle with the axis of the pulverizing pipeline (10), and the first included angle is greater than or equal to 25 degrees and less than or equal to 75 degrees.

2. The comminution device of claim 1, wherein, The first nozzles (104) and the second nozzles (105) are connected to a high-pressure gas source to jet high-pressure gas into the pulverizing pipeline (10). The pulverizing device further comprises an intermediate pipeline (13) arranged along the direction of gravity, and the axis of the intermediate pipeline (13) is perpendicular to the axis of the pulverizing pipeline (10).

3. The comminution device of claim 2, wherein, The first circulating pipeline (11) and the second circulating pipeline (12) are axisymmetric along the axis of the intermediate pipeline (13).

4. The comminution device of claim 1, wherein ​ 5. The pulverizing device according to any one of claims 1 to 4, characterized by ​ 6. The comminution device of any one of claims 1 to 4, wherein, ​ 7. The comminution device of claim 6, wherein ​ 8. The comminution device of any one of claims 1 to 4, wherein, The pulverizing device comprises a first inlet (111) of the first circulating pipe (11) and a second inlet (121) of the second circulating pipe (12), the first inlet (111) is located at one side of the first circulating pipe (11) close to the first end (101), and the second inlet (121) is located at one side of the second circulating pipe (12) close to the second end (102).

9. The comminution device of claim 8, wherein, The first inlet (111) and the second inlet (121) comprise a screw structure for unidirectional conveying of materials to the pulverizing device.

10. The comminution device of claim 8, wherein, The pulverizing device comprises a first outlet (112) of the first circulating pipe (11) and / or a second outlet (122) of the second circulating pipe (12), the first outlet (112) and the first inlet (111) are sequentially arranged along the circulation direction of materials in the first circulating pipe (11), and the second outlet (122) and the second inlet (121) are sequentially arranged along the circulation direction of materials in the second circulating pipe (12).

11. The comminution device of claim 10, wherein, The first circulating pipe (11) comprises a first grading device (1121) located in the first circulating pipe (11) and connected with the first outlet (112) for grading materials; and / or The second circulating pipe (12) comprises a second grading device (1221) located in the second circulating pipe (12) and connected with the second outlet (122) for grading materials.

12. The comminution device of claim 10, wherein, The first circulating pipe (11) comprises a first filtering device located in the first circulating pipe (11) and connected with the first outlet (112) for separating gas flow and materials; and / or The second circulating pipe (12) comprises a second filtering device located in the second circulating pipe (12) and connected with the second outlet (122) for separating gas flow and materials.

13. The comminution device of claim 8, wherein, The installation direction of the first inlet (111) and the second inlet (121) forms a second included angle with the axis of the pulverizing pipeline (10), the second included angle is greater than or equal to 25° and less than or equal to 75°.

14. A comminution system characterized by, The pulverizing device comprises: The pulverizing device according to any one of claims 1 to 13; And A high-pressure gas source connected with the first nozzle (104) and the second nozzle (105) in the pulverizing device.

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