A collision and splitting pneumatic crusher

Abstract

The present invention discloses a collision and splitting pneumatic pulverizer, comprising a silo device, an airflow feeding device, a posture adjustment device, a collision device, an airflow cover device, a rake device, a screening device, and an air source system. The collision and splitting pneumatic pulverizer utilizes an airflow feeding device to accelerate the material, and adjusts the posture of the material in the posture adjustment device, thereby increasing the probability of the material being collided and crushed. The material is split by high-speed collision and splitting in the collision device. The airflow cover device can protect the collision device from the impact of the crushed material. The rake device can crush the material with a high-speed airflow. The screening device can screen particles of different sizes, and can use pneumatic conveying to return the particles to the silo to achieve cyclic collision. The present invention has the advantages of strong adaptability to materials of different shapes, high crushing efficiency, and long service life.

Description

Technical Field

[0001] The invention relates to the technical field of material crushing, and more particularly to a collision-splitting pneumatic crusher. Background Art

[0002] At present, material crushing is mainly divided into mechanical crushing and pneumatic crushing. Traditional mechanical crushing, such as mechanical impact crusher and vibration medium grinder, uses mechanical devices to directly act on materials. It cannot meet the demand for ultra-fine powder, has high energy consumption, and the repeated action between materials and mechanical devices makes traditional mechanical crushers seriously worn and have a short service life. Pneumatic crushing mainly includes air mill, target airflow crusher, and fluidized bed airflow crusher. This type of machine operates intermittently, has low crushing efficiency, and has poor adaptability to material particle size, and cannot effectively adapt to the crushing of large-size and multi-morphological materials.

[0003] Therefore, in order to solve the problems of crushing materials of various shapes and the impact of crushed materials on the machine, it is required to provide a pneumatic crusher that can enhance the adaptability to different material shapes and have a longer service life to solve the above problems. Summary of the invention

[0004] In view of this, the present invention proposes a collision-splitting pneumatic pulverizer, and its specific technical solution is as follows:

[0005] A collision and splitting pneumatic pulverizer, comprising a silo device, an airflow feeding device, a posture adjustment device, a collision device, an airflow hood device, a rake device, a screening device, and an air source system, wherein the airflow feeding device and the posture adjustment device respectively comprise two groups, and the airflow outlet of each group of the airflow feeding device is correspondingly connected to the inlet of a group of the posture adjustment device, and the two groups of the posture adjustment devices are respectively installed on the left and right sides of the outside of the collision device, and the outlet of the posture adjustment device is connected to the inner cavity of the collision device, and the outlet pipes of the posture adjustment device are arranged opposite to each other in the inner cavity of the collision device to form two groups of injection pipes; the material discharged from the silo device is accelerated by the airflow feeding device and then flows into the posture adjustment device, and the material is accelerated in the posture adjustment device After the posture is adjusted, it flows into the injection pipe located in the collision device; the airflow hood device is correspondingly installed on the top of the outer wall of the collision device, and the airflow generating baffle in the airflow hood device can spray out an air curtain, and the airflow generating baffle is aligned between the outlets of the two posture adjustment devices, and the height is higher than the outlet of the posture adjustment device; the rake device is installed inside the airflow hood device, and its diameter is much smaller than that of the airflow hood device, and its length is the same as or shorter than that of the airflow hood device; the screening device is installed at the bottom of the inner cavity of the collision device; the fan in the air source system provides corresponding airflow for the silo device, the airflow feeding device, the posture adjustment device, the collision device, the airflow hood device, and the rake device.

[0006] By adopting the above technical scheme, the present invention integrates a collision and splitting pneumatic crusher collecting bin device, air source system, dust collector, airflow feeding device, posture adjustment device, collision device, airflow cover device, shooting rake device, and screening device. The airflow is generated by a fan and transmitted to the airflow feeding device to accelerate the material, and the posture of the material is adjusted in the posture adjustment device, which increases the probability of material collision and crushing. The material is split by high-speed collision in the collision device. The airflow cover device can protect the collision device from the impact of the crushed material. The shooting rake device can crush the material with high-speed airflow. The screening device can screen particles of different particle sizes, and can use pneumatic conveying to return the particles to the bin to achieve cyclic collision. The present invention has the advantages of strong adaptability to materials of different morphologies, high crushing efficiency, and long service life.

[0007] Preferably, the outlet pipes of the posture adjustment device are arranged facing each other in the inner cavity of the collision device to form two sets of injection pipes, and the airflow drives the large particles to be ejected from the injection pipes at high speed to collide with each other, so as to achieve the collision and splitting of the large particles. The diameter of each injection pipe is 30-100mm, the airflow speed is 45m / s-60m / s, and the pipe spacing between the two injection pipes is 30mm-80mm.

[0008] Preferably, each group of the airflow feeding devices corresponds to an airflow feeding pipe body, one end of the airflow feeding pipe body is the airflow inlet, and the other end is the airflow outlet connected to the inlet pipe of the posture adjustment device, and a feeding pipe inclined toward the airflow outlet is connected to the tube wall of the airflow feeding pipe body, and the entire outer circumferential surface of the airflow feeding pipe body corresponding to the position where the feeding pipe is connected to the airflow feeding pipe body gradually shrinks inward relative to the outer circumferential surfaces connected on both sides thereof to form a shrinkage opening, and the diameter of the shrinkage opening is 20 to 60 mm.

[0009] Preferably, each group of the posture adjustment devices correspondingly includes a support frame and the inlet pipe, the outlet pipe, the inlet posture adjustment auxiliary nozzle 1, the inlet posture adjustment auxiliary nozzle 2, the cylinder, the hose, the outlet posture adjustment auxiliary nozzle 1, and the outlet posture adjustment auxiliary nozzle 2 fixedly installed in the support frame, the support frame is fixedly connected to the outer wall of the collision chamber, the inlet pipe and the outlet pipe are respectively fixed on both sides of the left and right directions inside the support frame, and the inlet pipe and the outlet pipe are connected by the hose; in each group of the posture adjustment devices, the inlet of the inlet pipe is connected to the airflow outlet of the airflow feeding device on the corresponding side, and the outlet of the outlet pipe is connected to the inner cavity of the collision device; a corresponding device for shooting and detecting is arranged in front of the posture adjustment device. A high-speed camera is provided to measure the movement posture of the material entering the posture adjustment device; the upper end and the front end of the inlet pipe are respectively provided with the inlet posture adjustment auxiliary nozzle 1 and the inlet posture adjustment auxiliary nozzle 2 which are inclined toward the inlet thereof, and the upper end and the front end of the outlet pipe are respectively provided with the outlet posture adjustment auxiliary nozzle 1 and the outlet posture adjustment auxiliary nozzle 2 which are inclined toward the outlet thereof; the inlet pipe, the hose, the outlet pipe and the auxiliary nozzle in the posture adjustment device are all made of transparent non-metallic materials; the upper and lower ends of the hose are respectively connected to a cylinder, and the two cylinders are correspondingly installed at the upper and lower ends of the inner wall of the support frame, and the posture adjustment device controls the opening and closing of each posture adjustment auxiliary nozzle and the action of the cylinder according to the posture of the material entering.

[0010] Preferably, the airflow hood device includes a main diversion chamber, a diversion pipe, and an airflow generating enclosure distributed from top to bottom according to the setting position, a main diversion chamber airflow inlet is provided at the top of the main diversion chamber, an annular airflow groove is provided at the inner center, and four evenly arranged main diversion chamber airflow outlets are provided at the bottom, and the main diversion chamber airflow inlet and the main diversion chamber airflow outlet are both connected to the annular airflow groove; there are four diversion pipes in total, the top of each of the diversion pipes is connected to a corresponding main diversion chamber airflow outlet, and the bottom of the diversion pipe is connected to the airflow generating enclosure; the airflow generating enclosure includes two layers of umbrella-shaped enclosures, wherein the first layer of enclosure is connected to the diversion pipe, and the second layer of enclosure is provided with a plurality of small holes; the small holes on the airflow generating enclosure are trumpet holes, the opening angle of the trumpet holes is between 120° and 150°, the diameter of the trumpet holes is between 0.5mm and 10mm, and the spacing between two adjacent trumpet holes is between 2mm and 50mm.

[0011] Preferably, the shooting rake device includes an elongated nozzle, which is fixed above the main diversion chamber in the airflow hood device and passes through the vertical center of the airflow hood device as a whole. The nozzle is coaxially arranged with the airflow hood device, and the inlet of the nozzle is directly above the airflow hood device, and the outlet is in the airflow generating enclosure.

[0012] Preferably, the silo device comprises a silo support frame and a silo mounted on the silo support frame, a material inlet and a material recovery port are provided on the top of the silo, the two discharge outlets of the silo are respectively connected to the feed pipe inlets of the two airflow feeding devices, and a discharge valve is correspondingly installed at each of the two discharge outlets; an airflow feeding gate valve is installed at the airflow inlet of the airflow feeding device, gate valve one and gate valve two are respectively installed at the inlets of the inlet posture adjustment auxiliary nozzle one and the inlet posture adjustment auxiliary nozzle two, gate valve three and gate valve four are respectively installed at the inlets of the outlet posture adjustment auxiliary nozzle one and the outlet posture adjustment auxiliary nozzle two, and a reversing valve is correspondingly installed at the air inlet of the cylinder; a dust collector is installed on the top of the inner cavity of the collision device, and a dust removal gate valve is installed on the dust removal outlet of the dust collector; an airflow hood gate valve is installed on the air intake pipe connected to the air intake of the main diversion chamber of the airflow hood device, and the inlet of the nozzle of the rake device is connected to the outside A rake gate valve is installed on the air pipeline; the air source system includes a No. 1 fan, a No. 2 fan and a high-speed fan; a material outlet 1 is arranged at the bottom of the inner cavity of the collision device, and the two opposite sides of the material outlet are respectively connected to the material outlet 2 and the air outlet of the No. 2 fan through pipelines, and a gate valve 5 is installed between the No. 2 fan and the material outlet 1; a discharge recovery port is arranged on the lower side of the inner cavity of the collision device, and the discharge recovery port is connected to the material recovery port of the silo, and the discharge A gate valve six is ​​installed between the recovery port and the material recovery port, the air inlet of the No. 2 fan is connected to the side wall of the silo, and a gate valve seven is installed on the corresponding connecting channel; the air inlet of the No. 2 fan is also connected to the dust removal gate valve; the No. 1 fan is provided with a plurality of air outlets, which are respectively connected to the airflow feeding gate valve, the airflow hood gate valve, the rake gate valve, the gate valve one, the gate valve two, the gate valve three, and the gate valve four; the air outlet of the high-speed fan is connected to the reversing valve.

[0013] Preferably, the diameter of the air flow duct of each fan in the air source system is between 10 and 150 mm; the diameter of the feeding pipe is 30 to 100 mm, the inclination angle is between 10 and 45°, and the air flow velocity is 12 m / s to 40 m / s; the diameter of each attitude adjustment auxiliary nozzle of the attitude adjustment device is between 5 and 30 mm, the air flow velocity is 5 m / s to 15 m / s, and the outlet diameter of the attitude adjustment device is between 10 and 100 mm; the nozzle diameter of the shooting rake device is between 5 and 10 mm, the vertical distance between the nozzle outlet of the shooting rake device and the outlet of the attitude adjustment device is between 10 and 15 mm, and the air flow velocity is 35 m / s to 60 m / s.

[0014] Preferably, the screening device comprises a low-mesh screen located at the upper layer and a high-mesh screen located at the lower layer; the mesh number of the low-mesh screen is 100-400 meshes, and the mesh number of the high-mesh screen is 2500-6250 meshes.

[0015] Preferably, the collision device is made of a metal outer layer and a non-metallic inner lining material; the airflow feeding device, the posture adjustment device, the airflow cover device, the rake device, and the screening device are all made of non-metallic materials;

[0016] The non-metallic materials include: polytetrafluoroethylene, polycarbonate, polyamide, polyacetal, polypropylene, polyphenylene sulfide, polyarylate, unsaturated polyester, phenolic plastic, epoxy plastic, ultra-high molecular polyethylene, modified polyphenylene ether, and ceramics;

[0017] The non-metallic lining material in the metal outer layer non-metallic lining material includes: polytetrafluoroethylene, polycarbonate, polyamide, polyacetal, modified polyphenylene ether, polyester, phenolic plastic, epoxy plastic, ultra-high molecular polyethylene, and the lining thickness is 10mm to 25mm.

[0018] Compared with the prior art, the collision and splitting pneumatic pulverizer of the present invention has the following beneficial effects:

[0019] 1. The present invention adopts airflow-driven collision and splitting, and cyclic operation to improve the crushing efficiency.

[0020] 2. The present invention uses a posture adjustment device to adjust the movement posture of materials with different shapes (the size in one direction is much larger than the sizes in other directions, such as plate-like and long strip-like), thereby improving the splitting effectiveness.

[0021] 3. The present invention uses a rake device to break up bulk materials, thereby improving the crushing efficiency of the materials.

[0022] 4. The present invention forms an airflow protection cover to suppress the escape of broken materials and improve the material collision efficiency.

[0023] 5. The present invention is provided with a screening device, which effectively improves the circulation crushing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0025] Figure 1 The figure is a schematic diagram of the overall structure of a collision-splitting pneumatic pulverizer of the present invention.

[0026] Figure 2 The figure is a top view of a collision-splitting pneumatic pulverizer according to the present invention.

[0027] Figure 3 It is a structural schematic diagram of a collision-splitting pneumatic pulverizer (excluding a silo device, an air source system, etc.) of the present invention.

[0028] In the figure:

[0029] 10. Silo device; 101. Silo; 102. Silo support frame; 103. Discharge valve; 104. Material recovery port; 105. Material inlet;

[0030] 20. airflow feeding device; 201. airflow inlet; 202. airflow outlet; 203. feeding pipe; 204. contraction port; 205. airflow feeding gate valve;

[0031] 30. Attitude adjustment device; 301. Inlet pipe; 302. Outlet pipe; 303. Inlet attitude adjustment auxiliary nozzle 1; 304. Inlet attitude adjustment auxiliary nozzle 2; 305. Cylinder; 306. Hose; 307. Outlet attitude adjustment auxiliary nozzle 1; 308. Outlet attitude adjustment auxiliary nozzle 2; 309. Support frame; 310. Gate valve 1; 311. Gate valve 2; 312. Gate valve 3; 313. Gate valve 4; 314. Reversing valve;

[0032] 40. Collision device; 401. Dust collector; 402. Dust removal outlet; 403. Dust removal gate valve; 404. Material outlet 1; 405. Material outlet 2; 406. Gate valve 6; 407. Collision device bracket; 408. Discharge recovery port;

[0033] 50. airflow cover device; 501. airflow cover gate valve; 502. main diversion chamber; 503. airflow inlet of main diversion chamber; 504. annular airflow groove; 505. diversion pipeline; 506. airflow generating enclosure;

[0034] 60. Shooting rake device; 601. Shooting rake gate valve; 602. Nozzle;

[0035] 70. Screening device; 701. Low mesh screen; 702. High mesh screen;

[0036] 80. Air source system; 801. Fan No. 1; 802. Fan No. 2; 803. High-speed fan; 804. Gate valve five; 805. Gate valve seven. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0038] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] Example:

[0041] like Figure 1 , 2 As shown, the present invention is a collision and splitting pneumatic crusher, which mainly includes a silo device 10, an airflow feeding device 20, a posture adjustment device 30, a collision device 40, an airflow cover device 50, a rake device 60, a screening device 70, and an air source system 80. The present invention delivers materials through the airflow feeding device 20, and uses the posture adjustment device 30 to adjust the movement posture of materials with different morphologies, so that the materials can collide with each other in a posture of a larger contact surface. The outlet pipes of the posture adjustment device are arranged opposite to each other in the inner cavity of the collision device, and the airflow drives the large particles to be ejected from the outlet pipe at high speed for collision. During the collision, the materials are broken in the form of splitting. At the same time as the collision, the airflow cover device 50 can form an airflow protection cover in the central collision area, thereby suppressing the escape behavior of the broken materials and protecting the wall surface of the collision device 40 from the impact of the broken materials. The rake device 60 can emit high-speed airflow to crush the materials. The two-stage screens in the screening device 70 can screen the crushed materials and can use pneumatic conveying to send the particles back to the silo 101 to achieve cyclic collision.

[0042] Specifically,

[0043] like Figure 3As shown, the airflow feeding device 20 and the posture adjustment device 30 include two groups respectively, and the airflow outlet 202 of each group of airflow feeding devices 20 is connected to the inlet of a group of posture adjustment devices 30, and the two groups of posture adjustment devices 30 are respectively installed on the left and right sides of the outside of the collision device 40, and the outlet of the posture adjustment device 30 is connected to the inner cavity of the collision device 40; the material discharged from the silo device 10 is accelerated by the airflow feeding device 20 and then flows into the posture adjustment device 30, and the material flows into the collision device 40 after the posture is adjusted in the posture adjustment device 30.

[0044] In a further specific embodiment, Figure 3 As shown, each group of airflow feeding devices 20 includes an airflow feeding pipe body, one end of the airflow feeding pipe body is an airflow inlet 201, and the other end is an airflow outlet 202 connected to the inlet pipe 301 of the posture adjustment device 30, and a feeding pipe 203 inclined toward the airflow outlet 202 is connected to the pipe wall of the airflow feeding pipe body. The entire outer circumference of the airflow feeding pipe body corresponding to the position where the feeding pipe 203 is connected to the airflow feeding pipe body gradually shrinks inward relative to the outer circumferences connected on both sides thereof to form a shrinkage port 204, and the diameter of the shrinkage port 204 is generally 20 to 60 mm.

[0045] In a further specific embodiment, Figure 3 As shown, each group of attitude adjustment devices 30 includes a support frame 309 and an inlet pipe 301, an outlet pipe 302, an inlet attitude adjustment auxiliary nozzle 1 303, an inlet attitude adjustment auxiliary nozzle 2 304, a cylinder 305, a hose 306, an outlet attitude adjustment auxiliary nozzle 1 307, and an outlet attitude adjustment auxiliary nozzle 2 308 fixedly installed in the support frame 309. The support frame 309 is fixedly connected to the outer wall of the collision chamber, and the corresponding other structures of the attitude adjustment device 30 are correspondingly installed at the upper and lower ends of the inner wall of the support frame 309.

[0046] Furthermore, the inlet pipe 301 and the outlet pipe 302 are respectively fixed on both sides of the left and right directions inside the support frame 309, and the inlet pipe 301 and the outlet pipe 302 are connected by a hose 306; in each group of posture adjustment devices 30, the inlet of the inlet pipe 301 is connected to the airflow outlet 202 of the airflow feeding device 20 on the corresponding side, and the outlet of the outlet pipe 302 is connected to the inner cavity of the collision device 40. The two outlet pipes 302 are arranged opposite to each other to form a spray pipe, and the diameter of each spray pipe is 30-100 mm, the airflow velocity is 45 m / s-60 m / s, and the two spray pipes are connected to each other. The distance between the tubes is 30mm to 80mm, and the airflow drives the material to be ejected and split from the injection tube at high speed; the upper end and the front end of the inlet pipe 301 are respectively installed with an inlet attitude adjustment auxiliary nozzle 1 303 and an inlet attitude adjustment auxiliary nozzle 2 304 inclined toward its inlet, and the upper end and the front end of the outlet pipe 302 are respectively installed with an outlet attitude adjustment auxiliary nozzle 1 307 and an outlet attitude adjustment auxiliary nozzle 2 308 inclined toward its outlet; the upper and lower ends of the hose 306 are respectively connected to a cylinder 305, and the two cylinders 305 are correspondingly installed at the upper and lower ends of the inner wall of the support frame 309.

[0047] More specifically, the inlet pipe 301, the hose 306, and the outlet pipe 302 in the posture adjustment device 30 are all made of transparent non-metallic materials, and a high-speed camera is correspondingly arranged in front of the posture adjustment device 30 for photographing and detecting the movement posture of the material entering the posture adjustment device 30; the posture adjustment device 30 controls the opening and closing of each posture adjustment auxiliary nozzle 602 and the action of the cylinder 305 according to the posture of the material entering.

[0048] The collision device 40 is supported and fixed by the collision device bracket 407 at the bottom, and the airflow cover device 50 is correspondingly installed on the top of the outer wall of the collision device 40. The airflow generating panel 506 in the airflow cover device 50 can spray out an air curtain. The airflow generating panel 506 is aligned between the outlets of the two posture adjustment devices 30, and the height is higher than the outlet of the posture adjustment device 30; the shooting rake device 60 is installed inside the airflow cover device 50, and its diameter is much smaller than the airflow cover device 50, and its length is the same as or shorter than the airflow cover device 50.

[0049] In a further specific embodiment, Figure 3As shown, the airflow hood device 50 includes a main diversion chamber 502, a diversion pipe 505, and an airflow generating enclosure 506 which are distributed from top to bottom according to the setting position. A main diversion chamber airflow inlet 503 is provided on the top of the main diversion chamber 502, an annular airflow groove 504 is provided at the inner center, and four evenly arranged main diversion chamber airflow outlets are provided on the bottom. The main diversion chamber airflow inlet 503 and the main diversion chamber airflow outlet are both connected to the annular airflow groove 504; there are four diversion pipes 505 in total, and the top of each diversion pipe 505 is connected to a main diversion chamber airflow outlet, and the bottom of the diversion pipe 505 is connected to the airflow generating enclosure 506; the airflow generating enclosure 506 includes two layers of umbrella-shaped enclosures, wherein the first layer of enclosures is connected to the diversion pipe 505, and the second layer of enclosures is provided with a plurality of small holes.

[0050] The rake device 60 includes an elongated nozzle 602, which is fixed above the main diversion chamber 502 in the airflow hood device 50 and passes through the vertical center of the airflow hood device 50 as a whole. The nozzle 602 is coaxially arranged with the airflow hood device 50, and the inlet of the nozzle 602 is directly above the airflow hood device 50, and the outlet is in the airflow generating enclosure 506.

[0051] Furthermore, the small holes on the airflow generating enclosure 506 are trumpet holes, the opening angle of the trumpet holes is between 120° and 150°, the diameter of the trumpet holes is between 0.5mm and 10mm, and the spacing between two adjacent trumpet holes is between 2mm and 50mm.

[0052] In a further specific embodiment, Figure 3 As shown, the screening device 70 is installed at the bottom of the inner cavity of the collision device 40. The screening device 70 specifically includes a low-mesh screen 701 located at the upper layer and a high-mesh screen 702 located at the lower layer; the mesh number of the low-mesh screen 701 is 100-400 meshes, and the mesh number of the high-mesh screen 702 is 2500-6250 meshes.

[0053] The fan in the air source system 80 provides corresponding airflow for the silo device 10 , the airflow feeding device 20 , the posture adjustment device 30 , the collision device 40 , the airflow hood device 50 , and the rake device 60 .

[0054] In a further specific embodiment, Figure 1 , 2As shown, the silo device 10 includes a silo support frame 102 and a silo 101 installed on the silo support frame 102. A material inlet 105 and a material recovery port 104 are provided on the top of the silo 101. The two material discharge outlets of the silo 101 correspond to the feed pipe inlets of two airflow feeding devices 20, and a discharge valve 103 is installed at each of the two material discharge outlets; an airflow feeding gate valve 205 is installed at the airflow inlet 201 of the airflow feeding device 20, and the inlets of the inlet posture adjustment auxiliary nozzle 1 303 and the inlet posture adjustment auxiliary nozzle 2 304 are respectively installed. A gate valve 310 and a gate valve 2 311 are installed, and gate valves 312 and 313 are installed at the inlets of the outlet posture adjustment auxiliary nozzle 1 307 and the outlet posture adjustment auxiliary nozzle 2 308 respectively, and a reversing valve 314 is installed at the air inlet of the cylinder 305; a dust collector 401 is installed on the top of the inner cavity of the collision device 40, and a dust removal gate valve 403 is installed on the dust removal outlet 402 of the dust collector 401; an airflow cover gate valve 501 is installed on the air intake pipe connected to the airflow inlet 503 of the main diversion chamber of the airflow cover device 50, and the nozzle 602 of the rake device 60 is connected to the outside A rake gate valve 601 is installed on the air inlet pipeline; the air source system 80 includes a No. 1 fan 801, a No. 2 fan 802 and a high-speed fan 803; a material outlet 1 404 is arranged at the bottom of the inner cavity of the collision device 40, and the two opposite sides of the material outlet 1 404 are respectively connected to the material outlet 2 405 and the air outlet of the No. 2 fan 802 through pipelines, and a gate valve 5 804 is installed between the No. 2 fan 802 and the material outlet 1 404; a discharge recovery port 408 is arranged on the lower side of the inner cavity of the collision device 40, and the discharge recovery port 408 is connected to the material recovery port 104 of the silo 101. A gate valve six 406 is installed between the discharge recovery port 408 and the material recovery port 104; the air inlet of the No. 2 fan 802 is connected to the side wall of the silo 101, and a gate valve seven 805 is installed on the corresponding connecting channel; the air inlet of the No. 2 fan 802 is also connected to the dust removal gate valve 403; a plurality of air outlets are provided on the No. 1 fan 801, which correspond to the airflow feeding gate valve 205, the airflow hood gate valve 501, the rake gate valve 601, the gate valve one 310, the gate valve two 311, the gate valve three 312, and the gate valve four 313; the air outlet of the high-speed fan 803 is connected to the reversing valve 314.

[0055] More specifically, the diameter of the air flow duct of each fan in the air source system 80 is between 10 and 150 mm; the diameter of the feeding pipe 203 is 30 to 100 mm, the inclination angle is between 10 and 45 degrees, and the air flow velocity is 12 m / s to 40 m / s; the diameter of each attitude adjustment auxiliary nozzle of the attitude adjustment device 30 is between 5 and 30 mm, the air flow velocity is 5 m / s to 15 m / s, and the outlet diameter of the attitude adjustment device 30 is between 10 and 100 mm; the nozzle diameter of the shooting rake device 60 is between 5 and 10 mm, the vertical distance between the nozzle outlet of the shooting rake device 60 and the outlet of the attitude adjustment device 30 is between 10 and 15 mm, and the air flow velocity is 35 m / s to 60 m / s.

[0056] In a further specific embodiment, the collision device 40 is made of a metal outer layer and a non-metallic inner lining material; the airflow feeding device 20, the posture adjustment device 30, the airflow cover device 50, the rake device 60, and the screening device 70 are all made of non-metallic materials.

[0057] Non-metallic materials include: polytetrafluoroethylene, polycarbonate, polyamide, polyacetal, polypropylene, polyphenylene sulfide, polyarylate, unsaturated polyester, phenolic plastic, epoxy plastic, ultra-high molecular weight polyethylene, modified polyphenylene ether, and ceramics.

[0058] The non-metallic lining materials in the metal outer layer non-metallic lining materials include: polytetrafluoroethylene, polycarbonate, polyamide, polyacetal, modified polyphenylene ether, polyester, phenolic plastic, epoxy plastic, ultra-high molecular polyethylene, and the lining thickness is 10mm to 25mm.

[0059] The working principle of the present invention is:

[0060] like Figure 1 , Figure 2 , Figure 3 As shown, the silo 101 is installed on the silo support frame 102, and the original material is added to the material inlet 105 of the silo 101, then the material will slide from the middle of the silo 101 to the left and right sides of the silo 101, at this time, the No. 1 fan 801 starts to work, and the pneumatic conveying with a speed greater than 40m / s is sent to the airflow inlet 201 of the airflow feeding device 20 through the airflow feeding gate valve 205, and then the discharge valve 103 is opened, and the material falls from the silo 101 and enters the feeding pipe 203 of the airflow feeding device 20. At the same time, the airflow feeding device 20 has a certain contraction feature at the junction of the lower feeding port of the feeding pipe 203 and the airflow inlet 201, which can generate a certain negative pressure at the contraction port 204 to quickly suck the material down. After being sucked down and accelerated by the airflow, the material reaches the airflow outlet 202, and then enters the posture adjustment device 30.

[0061] like Figure 1 , Figure 2As shown, in this embodiment, the material enters the inlet pipe 301 of the posture adjustment device 30 in any state after being accelerated by the airflow feeding device 20. Because the inlet pipe 301 and the front and rear areas thereof are transparent, a high-speed camera is placed in front of the posture adjustment device 30 to capture and detect the movement posture of the material entering the posture adjustment device 30. The opening and closing of the inlet posture adjustment auxiliary nozzle 1 303, the inlet posture adjustment auxiliary nozzle 2 304, the outlet posture adjustment auxiliary nozzle 1 307, and the outlet posture adjustment auxiliary nozzle 2 308 and the action of the cylinder 305 are controlled according to the posture of the material entering.

[0062] Specifically, when the material is about to enter the hose 306 in any posture, the first blower 801 can send the airflow through the gate valve 1 310 and the gate valve 2 311 and send it to the inlet posture adjustment auxiliary nozzle 1 303 and the inlet posture adjustment auxiliary nozzle 2 304. The inlet posture adjustment auxiliary nozzle 1 303 mainly uses the method of jetting airflow to make the material flip longitudinally, and the inlet posture adjustment auxiliary nozzle 2 304 mainly uses the method of jetting airflow to make the material flip laterally. The work of the inlet posture adjustment auxiliary nozzle 1 303 and the inlet posture adjustment auxiliary nozzle 2 304 is controlled by the gate valve 1 310 and the gate valve 2 311 respectively. According to the material detected by the camera about to enter the posture adjustment device The movement posture of the device 30 is used to select the opening of the gate valve 1 310 or the gate valve 2 311, so that the material is flipped longitudinally or horizontally. The flipped material will enter the hose 306 with a smaller windward area. Subsequently, the high-speed fan 803 sends the airflow into the cylinder 305 through the reversing valve 314. The reversing of the reversing valve 314 is controlled by the posture of the material detected by the camera, so as to control the upper and lower cylinders 305 to extend, so that the hose 306 is longitudinally squeezed and deformed in both the upper and lower directions, so that the diameter of the hose 306 becomes smaller. At this time, the airflow speed through the hose 306 becomes faster, and the material is also accelerated when passing through the hose 306. When the material enters the outlet pipe 302, the first blower 801 can send the airflow through the gate valve 312 and the gate valve 4 313 and send it to the outlet posture adjustment auxiliary nozzle 1 307 and the outlet posture adjustment auxiliary nozzle 2 308. The outlet posture adjustment auxiliary nozzle 1 307 mainly uses the method of jetting airflow to make the material flip longitudinally, and the outlet posture adjustment auxiliary nozzle 2 308 mainly uses the method of jetting airflow to make the material flip laterally. The work of the outlet posture adjustment auxiliary nozzle 1 307 and the outlet posture adjustment auxiliary nozzle 2 308 is controlled by the gate valve 312 and the gate valve 4 313 respectively. According to the motion posture of the material about to enter the outlet pipe 302 detected by the camera, the gate valve 312 or the gate valve 4 313 is selected to open, so that the material flips longitudinally or laterally. The flipped material will leave the outlet pipe 302 with a larger windward area and enter the collision device 40. The posture adjustment device 30 quickly adjusts the motion posture of materials of different shapes and sizes, and makes the collision area of ​​the materials reach the maximum when they collide.

[0063] like Figure 3 As shown, in this embodiment, the material enters the collision device 40 and collides at the center of the collision device 40. Due to the large collision area of ​​the material, the material first cracks during the high-speed collision, and then expands through the cracks, and finally breaks into materials of different sizes. At the same time, the No. 1 fan 801 sends the airflow into the rake shooting device 60 through the rake shooting gate valve 601. The rake shooting gate valve 601 is used to control the opening and closing of the rake shooting device 60 to achieve the intermittent rake shooting function. The main form of the rake shooting device 60 is a slender nozzle 602, which can emit high-speed airflow to further crush the larger particle size materials at the collision center. Since the center speed is the lowest when the material collides, a strong momentum exchange will occur between the material and the air, and the crushed material will begin to escape from the center to the surroundings.

[0064] like Figure 1 As shown, in this embodiment, further, the first fan 801 sends the airflow into the airflow hood device 50 through the airflow hood gate valve 501, and the airflow hood gate valve 501 is used to control the opening and closing of the airflow hood device 50, and then the airflow enters the main diversion chamber airflow inlet 503 of the main diversion chamber 502, and the airflow flows downward from the main diversion chamber airflow inlet 503 into the annular airflow groove 504. At this time, the airflow will fully flow around the annular airflow groove 504, and then the airflow in the annular airflow groove 504 will be diverted downward into four diversion chambers evenly arranged along the circumferential direction of the main diversion chamber 502. In the pipe 505, the gas in the diversion pipe 505 will enter the airflow generating enclosure 506. The airflow generating enclosure 506 has two layers. There is enough space between the two layers of enclosures to allow airflow to flow. The second layer of enclosure is provided with a number of trumpet holes. Each airflow passing through the trumpet holes can become an umbrella-shaped air curtain. Each air curtain forms a large airflow protection cover. The protection range of the airflow protection cover includes the top, front and back. If the material after collision and crushing has a tendency to diffuse upward, front and back, the airflow protection cover can directly block the diffusion movement of the material. At the same time, the outlet pipe 302 of the posture adjustment device 30 not only provides the airflow for accelerating the material, but also has the function of suppressing the movement of the material to the left and right sides. The airflow cover device 50 has a multi-directional motion blocking effect on the crushed material and also reduces the impact of the crushed material on the wall of the collision device, thereby extending the service life of the air force collision machine.

[0065] Furthermore, the crushed materials can only fall from the direction of gravity under the blocking effect of the airflow protection cover in five directions. The crushed materials can be divided into three particle sizes: large, medium and small. The small particle size is in powder form, which is the minimum particle size that can be crushed by the airflow collider. Due to the influence of the material and shape of the material itself, it is not necessarily possible to form crushed materials with uniform size and shape during collision. Therefore, a screening device 70 is installed at the bottom of the collision device 40. The first layer of the screening device 70 from top to bottom is a low-mesh screen 701, and the second layer is a high-mesh screen 702. When the material falls, large-sized material fragments will remain on the low-mesh screen 701 of the first layer, medium-sized material fragments will remain on the high-mesh screen 702 of the second layer, and the smallest-sized material powder will directly pass through the two layers of screens and fall into the material outlet 1 404. Then, the No. 2 fan 802 will send the airflow to the material outlet 1 404 through the gate valve 5 804. At this time, the gate valve 7 805 is closed, and the material falling from the material outlet 1 404 will also be sent to the material outlet 2 405 along with the airflow provided by the No. 2 fan 802. Then, fan No. 2 802 starts to suck, at which time, dust removal gate valve 403 and gate valve five 804 are closed, gate valve six 406 and gate valve seven 805 are opened, and large and medium-sized material fragments, driven by the negative pressure airflow, will leave the collision device 40 through the discharge recovery port 408, and then be sent to the material recovery port 104 through gate valve six 406. The large and medium-sized material fragments will fall from the middle of the top of the silo 101 and then to the left and right sides of the silo 101 for a new unloading and crushing, thus realizing the cyclic collision and crushing function.

[0066] Further, gate valve six 406, gate valve seven 805, and gate valve five 804 are closed, the dust removal gate valve 403 is opened, and the No. 2 fan 802 starts to suck. Under the action of the negative pressure airflow, the dust in the collision device 40 enters the dust collector 401, and the dust collector 401 starts to perform dust removal work. The airflow after dust removal enters the dust removal gate valve 403 through the dust removal outlet 402 and is then discharged through the No. 2 fan 802.

[0067] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0068] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A collision-splitting pneumatic pulverizer, characterized in that: It includes a silo device, an airflow feeding device, a posture adjustment device, a collision device, an airflow hood device, a rake device, a screening device, and an air source system. The airflow feeding device and the posture adjustment device each include two groups, and the airflow outlet of each group of the airflow feeding device is connected to the inlet of a group of the posture adjustment device. The two groups of the posture adjustment devices are respectively installed on the left and right sides of the outside of the collision device. The outlet of the posture adjustment device is connected to the inner cavity of the collision device. The outlet pipes of the posture adjustment device are arranged opposite to each other in the inner cavity of the collision device to form two groups of injection pipes. The material discharged from the silo device is accelerated by the airflow feeding device and then flows into the posture adjustment device. After the material is adjusted in posture in the posture adjustment device Flows into the injection pipe located in the collision device; the airflow hood device is correspondingly installed on the top of the outer wall of the collision device, the airflow generating baffle in the airflow hood device can spray out an air curtain, the airflow generating baffle is aligned between the outlets of the two posture adjustment devices, and the height is higher than the outlet of the posture adjustment device; the rake device is installed inside the airflow hood device, and its diameter is much smaller than that of the airflow hood device, and its length is the same as or shorter than that of the airflow hood device; the screening device is installed at the bottom of the inner cavity of the collision device; the fan in the air source system provides corresponding airflow for the silo device, the airflow feeding device, the posture adjustment device, the collision device, the airflow hood device, and the rake device; Each group of the airflow feeding devices includes an airflow feeding pipe body, one end of the airflow feeding pipe body is an airflow inlet, and the other end is the airflow outlet connected to the inlet pipe of the posture adjustment device, a feeding pipe inclined toward the airflow outlet is connected to the pipe wall of the airflow feeding pipe body, and the entire outer peripheral surface of the airflow feeding pipe body corresponding to the position where the feeding pipe is connected to the airflow feeding pipe body gradually shrinks inward relative to the outer peripheral surfaces connected on both sides thereof to form a shrinkage opening; Each group of the posture adjustment devices includes a support frame and the inlet pipe, the outlet pipe, the inlet posture adjustment auxiliary nozzle 1, the inlet posture adjustment auxiliary nozzle 2, the cylinder, the hose, the outlet posture adjustment auxiliary nozzle 1, and the outlet posture adjustment auxiliary nozzle 2 fixedly installed in the support frame; the support frame is fixedly connected to the outer wall of the collision device, the inlet pipe and the outlet pipe are respectively fixed on both sides of the left and right directions inside the support frame, and the inlet pipe and the outlet pipe are connected by the hose; in each group of the posture adjustment devices, the inlet of the inlet pipe is connected to the airflow outlet of the airflow feeding device on the corresponding side, and the outlet of the outlet pipe is connected to the inner cavity of the collision device; a device for shooting and detection is correspondingly arranged in front of the posture adjustment device. A high-speed camera is provided to monitor the movement posture of the material entering the posture adjustment device; the upper end and the front end of the inlet pipe are respectively provided with an inlet posture adjustment auxiliary nozzle 1 and an inlet posture adjustment auxiliary nozzle 2 which are inclined toward the inlet thereof, and the upper end and the front end of the outlet pipe are respectively provided with an outlet posture adjustment auxiliary nozzle 1 and an outlet posture adjustment auxiliary nozzle 2 which are inclined toward the outlet thereof; the inlet pipe, the hose, the outlet pipe and the auxiliary nozzle in the posture adjustment device are all made of transparent non-metallic materials; the upper and lower ends of the hose are respectively connected to a cylinder, and the two cylinders are respectively installed at the upper and lower ends of the inner wall of the support frame, and the posture adjustment device controls the opening and closing of each posture adjustment auxiliary nozzle and the action of the cylinder according to the posture of the material entering; The airflow hood device includes a main diversion chamber, a diversion pipe, and an airflow generating enclosure distributed from top to bottom according to the setting position. A main diversion chamber airflow inlet is provided on the top of the main diversion chamber, an annular airflow groove is provided at the center of the interior, and four evenly arranged main diversion chamber airflow outlets are provided at the bottom, and the main diversion chamber airflow inlet and the main diversion chamber airflow outlet are both connected to the annular airflow groove; there are four diversion pipes in total, and the top of each diversion pipe is connected to a corresponding main diversion chamber airflow outlet, and the bottom of the diversion pipe is connected to the airflow generating enclosure; the airflow generating enclosure includes two layers of umbrella-shaped enclosures, wherein the first layer of enclosure is connected to the diversion pipe, and the second layer of enclosure is provided with a plurality of small holes; the small holes are horn holes, the opening angle of the horn holes is between 120° and 150°, the diameter of the horn holes is between 0.5mm and 10mm, and the spacing between two adjacent horn holes is between 2mm and 50mm; The rake device comprises an elongated nozzle, which is fixed above the main flow distribution chamber in the airflow cover device and passes through the vertical center of the airflow cover device as a whole. The nozzle is coaxially arranged with the airflow cover device, and the inlet of the nozzle is just above the airflow cover device, and the outlet is in the airflow generating enclosure; The inlets of the inlet attitude adjustment auxiliary nozzle 1 and the inlet attitude adjustment auxiliary nozzle 2 are respectively installed with gate valve 1 and gate valve 2, and the inlets of the outlet attitude adjustment auxiliary nozzle 1 and the outlet attitude adjustment auxiliary nozzle 2 are respectively installed with gate valve 3 and gate valve 4.

2. The impact-splitting pneumatic pulverizer according to claim 1, characterized in that: The injection tubes in the collision device are arranged facing each other, the discharged materials collide, and the airflow drives the materials to be ejected and split at high speed from the injection tubes. The diameter of each injection tube is 30~100mm, the airflow speed is 45m / s-60m / s, and the tube spacing between the two injection tubes is 30mm~80mm.

3. The collision-splitting pneumatic pulverizer according to claim 1, characterized in that: The silo device includes a silo support frame and a silo mounted on the silo support frame, a material inlet and a material recovery port are provided on the top of the silo, the two discharge outlets of the silo are respectively connected to the two feeding pipe inlets of the airflow feeding device, and a discharge valve is correspondingly installed at the two discharge outlets; an airflow feeding gate valve is installed at the airflow inlet of the airflow feeding device, and a reversing valve is correspondingly installed at the air inlet of the cylinder; a dust collector is installed on the top of the inner cavity of the collision device, and a dust removal gate valve is installed on the dust removal outlet of the dust collector; an airflow hood gate valve is installed on the air intake pipeline connected to the air intake of the main diversion chamber of the airflow hood device, and a rake gate valve is installed on the air intake pipeline connected to the nozzle of the rake device; the air source system includes a No. 1 fan, a No. 2 fan and a high-speed fan; the inner cavity of the collision device A material outlet one is provided at the bottom of the cavity, and two opposite sides of the material outlet are connected to material outlet two and the air outlet of the No. 2 fan through pipelines respectively, and a gate valve five is installed between the No. 2 fan and the material outlet one; a discharge recovery port is provided on the lower side of the inner cavity of the collision device, and the discharge recovery port is connected to the material recovery port of the silo, and a gate valve six is ​​installed between the discharge recovery port and the material recovery port, the air inlet of the No. 2 fan is connected to the side wall of the silo, and a gate valve seven is installed on the corresponding connecting channel; the air inlet of the No. 2 fan is also connected to the dust removal gate valve; a plurality of air outlets are provided on the No. 1 fan, which are respectively connected to the airflow feeding gate valve, the airflow hood gate valve, the rake gate valve, the gate valve one, the gate valve two, the gate valve three, and the gate valve four; the air outlet of the high-speed fan is connected to the reversing valve.

4. The collision-splitting pneumatic pulverizer according to claim 1, characterized in that: The diameter of the air flow duct of each fan in the air source system is between 10 and 150 mm; the diameter of the feeding pipe is 30 to 100 mm, the inclination angle is between 10 and 45°, and the air flow velocity is 12 m / s to 40 m / s; the diameter of each attitude adjustment auxiliary nozzle of the attitude adjustment device is between 5 and 30 mm, the air flow velocity is 5 m / s to 15 m / s, and the outlet diameter of the attitude adjustment device is between 10 and 100 mm; the nozzle diameter of the shooting rake device is between 5 and 10 mm, the vertical distance between the nozzle outlet of the shooting rake device and the outlet of the attitude adjustment device is between 10 and 15 mm, and the air flow velocity is 35 m / s to 60 m / s.

5. The collision-splitting pneumatic pulverizer according to claim 1, characterized in that: The screening device comprises a low-mesh screen located at an upper layer and a high-mesh screen located at a lower layer; the mesh number of the low-mesh screen is 100-400 meshes, and the mesh number of the high-mesh screen is 2500-6250 meshes.

6. A collision-splitting pneumatic pulverizer according to any one of claims 1 to 5, characterized in that: The collision device is made of a metal outer layer and a non-metal lining material; the airflow feeding device, the posture adjustment device, the airflow cover device, the rake device, and the screening device are all made of non-metallic materials; The non-metallic materials include: polytetrafluoroethylene, polycarbonate, polyamide, polyacetal, polypropylene, polyphenylene sulfide, polyarylate, unsaturated polyester, phenolic plastic, epoxy plastic, ultra-high molecular polyethylene, modified polyphenylene ether, and ceramics; The non-metallic lining material in the metal outer layer non-metallic lining material includes: polytetrafluoroethylene, polycarbonate, polyamide, polyacetal, modified polyphenylene ether, polyester, phenol plastic, epoxy plastic, ultra-high molecular polyethylene, and the lining thickness is 10mm~25mm.

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