CN115634762A

CN115634762A - Collision split type pneumatic pulverizer

Info

Publication number: CN115634762A
Application number: CN202211363374.0A
Authority: CN
Inventors: 衣红
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-01-24

Abstract

The invention discloses a colliding and splitting type pneumatic grinder which comprises a stock bin device, an airflow feeding device, a posture adjusting device, a colliding device, an airflow cover device, a jetting rake device, a screening device and an air source system. This clash split type air pulverizer utilizes air current feeder with higher speed the material, carry out the gesture to the material in transferring the appearance device and adjust, the broken probability of material clash has been improved, high-speed clash split material in the clash device in opposite directions, the air current cover device can protect the clash device not receive the impact of broken material, penetrate the harrow device and can use the high-speed air current to hit garrulous material, screening plant can screen the granule of different granularities, and can utilize pneumatic transport to send the granule back the feed bin again, realize the circulation clash. The invention has the advantages of strong adaptability to materials with different shapes, high crushing efficiency, long service life and the like.

Description

Collision split type pneumatic pulverizer

Technical Field

The invention relates to the technical field of material crushing, in particular to an opposite-collision split type pneumatic crusher.

Background

At present, in the aspect of material crushing, mainly be divided into mechanical type breakage and pneumatic type breakage, traditional mechanical type breakage is like mechanical type impact crusher and vibration medium grinding machine, utilizes mechanical device direct action to the material, and it can not realize superfine microfine powder demand, and the energy consumption is high, and the repeated action between material and the mechanical device for traditional mechanical type breaker wearing and tearing are serious, and life is not long. The pneumatic crushing mainly comprises an air mill, a target type air flow crusher and a fluidized bed type air flow crusher. The machine operates intermittently, has low crushing efficiency and poor adaptability to the particle size of material particles, and cannot effectively adapt to crushing of large-particle-size and multi-shape materials.

Therefore, aiming at the problems of the crushing of materials with various shapes and the impact of the crushed materials on a machine, the pneumatic crusher which can strengthen the adaptability to different materials and has longer service life is required to be provided to solve the problems.

Disclosure of Invention

In view of the above, the invention provides a clash split type pneumatic grinder, which has the following specific technical scheme:

a collision split type pneumatic grinder comprises a stock bin device, an airflow feeding device, a posture adjusting device, a collision device, an airflow cover device, a jetting harrow device, a screening device and an air source system, wherein the airflow feeding device and the posture adjusting device respectively comprise two groups, an airflow outlet of each group of airflow feeding device is correspondingly connected with an inlet of one group of posture adjusting device, the two groups of posture adjusting devices are respectively and correspondingly installed on the left side and the right side of the outer part of the collision device, an outlet of the posture adjusting device is connected with an inner cavity of the collision device, outlet pipelines of the posture adjusting devices are oppositely arranged in the inner cavity of the collision device to form two groups of jet pipes; the material discharged by the stock bin device flows into the posture adjusting device after being accelerated by the airflow feeding device, and flows into the injection pipe positioned in the collision device after being subjected to posture adjustment in the posture adjusting device; the airflow cover device is correspondingly arranged at the top of the outer wall of the collision device, an airflow generation enclosing plate in the airflow cover device can eject an air curtain, and the airflow generation enclosing plate is aligned between the outlets of the two posture adjusting devices and is higher than the outlets of the posture adjusting devices; the rake shooting device is arranged in the airflow hood device, the diameter of the rake shooting device is far smaller than that of the airflow hood device, and the length of the rake shooting device is consistent with or shorter than that of the airflow hood device; the screening device is arranged at the bottom of an inner cavity of the collision device; and a fan in the air source system provides corresponding air flow for the stock bin device, the air flow feeding device, the posture adjusting device, the colliding device, the air flow cover device and the rake jetting device.

By adopting the technical scheme, the clash splitting type pneumatic pulverizer provided by the invention integrates a material bin device, an air source system, a dust remover, an airflow feeding device, a posture adjusting device, a clash device, an airflow cover device, a jetting rake device and a screening device. Utilize the fan to produce the air current and give the air current feeder and accelerate the material, carry out the gesture to the material in transferring the appearance device and adjust, the broken probability of material clash has been improved, high-speed clash splitting material in opposite directions in the clash device, the air current cover device can protect the clash device not receive the impact of broken material, penetrate harrow device can hit the broken material with high-speed air current, screening plant can screen the granule of different granularities, and can utilize pneumatic transport to send the granule back the feed bin again, realize the circulation clash. The invention has the advantages of strong adaptability to materials with different shapes, high crushing efficiency, long service life and the like.

Preferably, outlet pipelines of the posture adjusting device are oppositely arranged in an inner cavity of the collision device to form two groups of jet pipes, and the airflow drives large-particle materials to be jetted out of the jet pipes at a high speed for collision, so that large-particle collision splitting is realized. The pipe diameter of each injection pipe is 30-100 mm, the air flow speed is 45-60 m/s, and the pipe distance between the two injection pipes is 30-80 mm.

Preferably, each set of the airflow feeding devices correspondingly comprises an airflow feeding pipe body, one end of the airflow feeding pipe body is an airflow inlet, the other end of the airflow feeding pipe body is an airflow outlet connected with an inlet pipeline of the posture adjusting device, a feeding pipe which inclines towards the airflow outlet is connected to the pipe wall of the airflow feeding pipe body, the whole peripheral surface of the airflow feeding pipe body corresponding to the position where the feeding pipe is communicated with the airflow feeding pipe body gradually shrinks inwards relative to the peripheral surface connected with the two sides of the airflow feeding pipe body to form a shrinking opening, and the diameter of the shrinking opening is 20-60 mm.

Preferably, each group of posture adjusting devices correspondingly comprises a support frame, and the inlet pipeline, the outlet pipeline, the inlet posture adjusting auxiliary spray pipe I, the inlet posture adjusting auxiliary spray pipe II, the air cylinder, the hose, the outlet posture adjusting auxiliary spray pipe I and the outlet posture adjusting auxiliary spray pipe II which are fixedly arranged in the support frame, the support frame is fixedly connected with the outer wall of the collision chamber, the inlet pipeline and the outlet pipeline are respectively fixed on the two sides of the left and right directions in the support frame, and the inlet pipeline is connected with the outlet pipeline through the hose; in each group of posture adjusting devices, the inlet of the inlet pipeline is connected with the airflow outlet of the airflow feeding device on the corresponding side, and the outlet of the outlet pipeline is connected with the inner cavity of the colliding device; a high-speed camera for shooting the motion posture of the detected material entering the posture adjusting device is correspondingly arranged in front of the posture adjusting device; the upper end and the front end of the inlet pipeline are respectively and correspondingly provided with a first inlet posture adjusting auxiliary spray pipe and a second inlet posture adjusting auxiliary spray pipe which incline towards the inlets of the inlet pipeline, and the upper end and the front end of the outlet pipeline are respectively and correspondingly provided with a first outlet posture adjusting auxiliary spray pipe and a second outlet posture adjusting auxiliary spray pipe which incline towards the outlets of the outlet pipeline; the inlet pipeline, the hose, the outlet pipeline and the auxiliary spray pipe in the posture adjusting device are all made of transparent non-metallic materials; the upper end and the lower end of the hose are respectively connected with one air cylinder, the two air cylinders are correspondingly installed at the upper end and the lower end of the inner wall of the support frame, and the posture adjusting device controls and adjusts the opening and closing of each posture adjusting auxiliary spray pipe and the action of the air cylinders according to the entering posture of materials.

Preferably, the airflow hood device comprises a main diversion chamber, diversion pipelines and airflow generation enclosing plates which are distributed from top to bottom according to the arrangement positions, the top of the main diversion chamber is provided with a main diversion chamber airflow inlet, the center of the inner part of the main diversion chamber is provided with an annular airflow groove, the bottom of the main diversion chamber airflow inlet is provided with four main diversion chamber airflow outlets which are uniformly distributed, and the main diversion chamber airflow inlet and the main diversion chamber airflow outlets are communicated with the annular airflow groove; the top of each shunting pipeline is correspondingly communicated with an airflow outlet of the main shunting chamber, and the bottom of each shunting pipeline is communicated with the airflow generation enclosing plate; the airflow generation enclosing plate comprises two layers of umbrella-shaped enclosing plates, wherein the first layer of enclosing plate is connected with the shunt pipeline, and a plurality of small holes are formed in the second layer of enclosing plate; the small holes in the airflow generation enclosing plate are horn holes, the opening angle of each horn hole is 120-150 degrees, the diameter of each horn hole is 0.5-10 mm, and the distance between every two adjacent horn holes is 2-50 mm.

Preferably, the rake device comprises an elongated nozzle fixed above the main flow-dividing chamber in the airflow hood device and integrally penetrating through the vertical center of the airflow hood device, the nozzle is arranged coaxially with the airflow hood device, the inlet of the nozzle is right above the airflow hood device, and the outlet of the nozzle is in the airflow generation enclosure.

Preferably, the stock bin device comprises a stock bin support frame and a stock bin arranged on the stock bin support frame, a material inlet and a material recovery port are formed in the top of the stock bin, two discharging outlets of the stock bin are respectively and correspondingly connected with feeding pipe inlets of the two airflow feeding devices, and a discharging valve is correspondingly arranged at each of the two discharging outlets; an airflow feeding gate valve is installed at the airflow inlet of the airflow feeding device, a first gate valve and a second gate valve are correspondingly installed at the inlets of the first inlet posture adjusting auxiliary spray pipe and the second inlet posture adjusting auxiliary spray pipe respectively, a third gate valve and a fourth gate valve are correspondingly installed at the inlets of the first outlet posture adjusting auxiliary spray pipe and the second outlet posture adjusting auxiliary spray pipe respectively, and a reversing valve is correspondingly installed at the air inlet of the air cylinder; the top of the inner cavity of the collision device is provided with a dust remover, and a dust removal gate valve is arranged on a dust removal outlet of the dust remover; an air flow cover gate valve is arranged on an air inlet pipeline connected outside an air flow inlet of the main flow dividing chamber of the air flow cover device, and a rake jetting gate valve is arranged on an air inlet pipeline connected outside the jet pipe of the rake jetting device; the air source system comprises a first fan, a second fan and a high-speed fan; a first material outlet is formed in the bottom of an inner cavity of the collision device, two opposite sides of the first material outlet are respectively connected with a second material outlet and an air outlet of the second fan through pipelines, and a fifth gate valve is arranged between the second fan and the first material outlet; a discharge recovery port is arranged on the side face below the inner cavity of the collision device, the discharge recovery port is communicated with the material recovery port of the storage bin, a gate valve six is arranged between the discharge recovery port and the material recovery port, an air inlet of the second fan is connected with the side wall of the storage bin, and a gate valve seven is arranged on a corresponding connecting channel; the air inlet of the second fan is additionally connected with the dedusting gate valve; the first fan is provided with a plurality of air outlets which are respectively and correspondingly connected with the airflow feeding gate valve, the airflow cover gate valve, the ejection rake gate valve, the first gate valve, the second gate valve, the third gate valve and the fourth gate valve; and the air outlet of the high-speed fan is connected with the reversing valve.

Preferably, the diameter of the airflow pipeline of each fan in the air source system is between 10 and 150 mm; the pipe diameter of the feeding pipe is 30-100 mm, the inclination angle is 10-45 degrees, and the air flow speed is 12-40 m/s; the diameter of each attitude adjusting auxiliary spray pipe of the attitude adjusting device is between 5 and 30mm, the air flow speed is between 5 and 15m/s, and the outlet diameter of the attitude adjusting device is between 10 and 100 mm; the diameter of a spray pipe of the spray rake device is between 5 and 10mm, the vertical distance between the outlet of the spray pipe of the spray rake device and the outlet of the posture adjusting device is between 10 and 15mm, and the air flow speed is 35 to 60m/s.

Preferably, 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.

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

the non-metallic material comprises: polytetrafluoroethylene, polycarbonate, polyamide, polyacetal, polypropylene, polyphenylene sulfide, polyarylate, unsaturated polyester, phenolic plastic, epoxy plastic, ultrahigh molecular weight polyethylene, modified polyphenylene oxide, ceramic;

the non-metal lining material in the metal outer layer non-metal lining material comprises: polytetrafluoroethylene, polycarbonate, polyamide, polyacetal, modified polyphenylene ether, polyester, phenolic plastic, epoxy plastic, ultra-high molecular weight polyethylene, and the thickness of the lining is 10mm to 25mm.

Compared with the prior art, the clash split type pneumatic grinder has the following beneficial effects:

1. the invention adopts air flow to actuate collision splitting, and the operation is circulated, thereby improving the crushing efficiency.

2. The invention uses the attitude adjusting device to adjust the movement attitude of the materials with different appearances (the size in a certain direction is far larger than that in other directions, such as plate-shaped and strip-shaped), thereby improving the splitting effectiveness.

3. The invention uses the rake shooting device to crush large materials, thereby improving the crushing efficiency of the materials.

4. The invention forms the airflow protection cover to inhibit the escape behavior of the crushed materials and improve the collision efficiency of the materials.

5. The invention is provided with the screening device, thereby effectively improving the circulating crushing efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a head-on split pneumatic pulverizer of the present invention.

FIG. 2 is a top view of a rival split pneumatic pulverizer of the present invention.

Fig. 3 is a schematic structural diagram of a head-on split pneumatic crusher (excluding a bin device, an air source system, etc.) according to the present invention.

In the figure:

10. a stock bin device; 101. a storage bin; 102. a stock bin support frame; 103. a discharge valve; 104. a material recycling port; 105. a material inlet;

20. an air flow feeding device; 201. an airflow inlet; 202. an airflow outlet; 203. a feed pipe; 204. a constriction; 205. an air flow feed gate valve;

30. a posture adjusting device; 301. an inlet duct; 302. an outlet conduit; 303. an inlet posture adjusting auxiliary spray pipe I; 304. an inlet posture adjusting auxiliary spray pipe II; 305. a cylinder; 306. a hose; 307. an outlet posture adjusting auxiliary spray pipe I; 308. an outlet posture adjusting auxiliary spray pipe II; 309. a support frame; 310. a first gate valve; 311. a second gate valve; 312. a gate valve III; 313. a gate valve IV; 314. a diverter valve;

40. a collision device; 401. a dust remover; 402. a dust removal outlet; 403. a dust removal gate valve; 404. a first material outlet; 405. a material outlet II; 406. a gate valve six; 407. a collision device bracket; 408. a discharge recovery port;

50. an airflow hood device; 501. an airflow hood gate valve; 502. a main flow-dividing chamber; 503. a main flow-splitting chamber airflow inlet; 504. an annular air flow groove; 505. a diversion pipeline; 506. an airflow generation coaming plate;

60. a rake shooting device; 601. a rake-shooting gate valve; 602. a nozzle;

70. a screening device; 701. a low mesh screen; 702. a high mesh screen;

80. an air supply system; 801. a first fan; 802. a second fan; 803. a high-speed fan; 804. fifthly, a gate valve; 805. and a gate valve seven.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example (b):

as shown in fig. 1 and 2, the invention relates to a collision split type pneumatic crusher, which mainly comprises a stock bin device 10, an airflow feeding device 20, a posture adjusting device 30, a collision device 40, an airflow cover device 50, a jetting rake device 60, a screening device 70 and an air source system 80. According to the invention, materials are sent out by the airflow feeding device 20, the movement postures of the materials with different appearances are adjusted by the posture adjusting device 30, the materials can collide with each other in a larger contact surface posture, the outlet pipelines of the posture adjusting device are oppositely arranged in the inner cavity of the collision device, airflow drives large-particle materials to be sprayed out from the outlet pipelines to collide at a high speed, the materials are crushed in a splitting mode during collision, and the airflow cover device 50 can form an airflow protection cover in a central collision area during collision, so that the escape behavior of the crushed materials is inhibited, and the wall surface of the collision device 40 is protected from being impacted by the crushed materials. The rake assembly 60 is capable of emitting a high velocity gas stream to break up the material. The two-stage screen in the screening device 70 can screen the crushed material and can send the particles back to the silo 101 by pneumatic transmission to realize circular collision.

In particular, the method comprises the following steps of,

as shown in fig. 3, the airflow feeding device 20 and the posture adjusting device 30 respectively include two sets, and the airflow outlet 202 of each set of the airflow feeding device 20 is correspondingly connected with the inlet of one set of the posture adjusting device 30, the two sets of the posture adjusting devices 30 are correspondingly installed at the left and right sides of the outer portion of the collision device 40, respectively, and the outlet of the posture adjusting device 30 is connected with the inner cavity of the collision device 40; the material discharged from the stock bin device 10 is accelerated by the airflow feeding device 20 and flows into the posture adjusting device 30, and the material flows into the collision device 40 after being subjected to posture adjustment in the posture adjusting device 30.

In a further embodiment, as shown in fig. 3, each set of air feeding devices 20 comprises an air feeding tube, one end of the air feeding tube is an air inlet 201, the other end of the air feeding tube is an air outlet 202 connected to an inlet pipe 301 of the posture adjusting device 30, a feeding tube 203 inclined toward the air outlet 202 is connected to the tube wall of the air feeding tube, the whole outer circumferential surface of the air feeding tube corresponding to the position where the feeding tube 203 is connected to the air feeding tube gradually shrinks inwards relative to the outer circumferential surface connected to the two sides of the air feeding tube to form a shrinking opening 204, and the diameter of the shrinking opening 204 is generally 20-60 mm.

In a further embodiment, as shown in fig. 3, each set of posture adjusting device 30 correspondingly includes a support frame 309, and an inlet pipe 301, an outlet pipe 302, an inlet posture adjusting auxiliary nozzle pipe 303, an inlet posture adjusting auxiliary nozzle pipe two 304, an air cylinder 305, a hose 306, an outlet posture adjusting auxiliary nozzle pipe 307, and an outlet posture adjusting auxiliary nozzle pipe two 308 fixedly installed in the support frame 309, the support frame 309 is fixedly connected with an outer wall of the colliding chamber, and the other corresponding structures of the posture adjusting device 30 are correspondingly installed at upper and lower ends of an inner wall of the support frame 309.

Further, the inlet pipe 301 and the outlet pipe 302 are respectively fixed at two sides of the support frame 309 in the left-right direction, and the inlet pipe 301 and the outlet pipe 302 are connected by a hose 306; in each group of posture adjusting devices 30, the inlet of an inlet pipeline 301 is connected with the airflow outlet 202 of the corresponding side airflow feeding device 20, the outlet of an outlet pipeline 302 is connected with the inner cavity of the colliding device 40, two outlet pipelines 302 are oppositely arranged to form an injection pipe, the pipe diameter of each injection pipe is 30-100 mm, the airflow speed is 45-60 m/s, the pipe distance between the two injection pipes is 30-80 mm, and the airflow drives the materials to be ejected out of the injection pipes at high speed to be split; the upper end and the front end of the inlet pipeline 301 are respectively and correspondingly provided with a first inlet posture adjusting auxiliary spray pipe 303 and a second inlet posture adjusting auxiliary spray pipe 304 which incline towards the inlet of the inlet pipeline, and the upper end and the front end of the outlet pipeline 302 are respectively and correspondingly provided with a first outlet posture adjusting auxiliary spray pipe 307 and a second outlet posture adjusting auxiliary spray pipe 308 which incline towards the outlet of the outlet pipeline; the upper and lower ends of the hose 306 are respectively connected with a cylinder 305, and the two cylinders 305 are correspondingly arranged at the upper and lower ends of the inner wall of the support frame 309.

More specifically, the inlet pipeline 301, the hose 306 and the outlet pipeline 302 in the posture adjusting device 30 are all made of transparent non-metallic materials, and a high-speed camera for shooting the movement posture of the detected material entering the posture adjusting device 30 is correspondingly arranged in front of the posture adjusting device 30; the posture adjusting device 30 controls and adjusts the opening and closing of each posture adjusting auxiliary nozzle 602 and the action of the air cylinder 305 according to the posture of the material entering.

The colliding device 40 is supported and fixed by a colliding device bracket 407 at the bottom, the airflow cover device 50 is correspondingly installed at the top of the outer wall of the colliding device 40, an airflow generation enclosing plate 506 in the airflow cover device 50 can emit an air curtain, and the airflow generation enclosing plate 506 is aligned between the outlets of the two posture adjusting devices 30 and is higher than the outlets of the posture adjusting devices 30; the rake device 60 is mounted inside the flow hood device 50 and has a diameter much smaller than the flow hood device 50 and a length equal to or shorter than the flow hood device 50.

In a further embodiment, as shown in fig. 3, the airflow hood device 50 includes a main flow-dividing chamber 502, flow-dividing pipes 505, and an airflow-generating shroud 506, which are distributed from top to bottom according to the arrangement position, wherein the top of the main flow-dividing chamber 502 is provided with a main flow-dividing chamber airflow inlet 503, the inner center is provided with an annular airflow slot 504, the bottom is provided with four main flow-dividing chamber airflow outlets which are uniformly arranged, and the main flow-dividing chamber airflow inlet 503 and the main flow-dividing chamber airflow outlets are both communicated with the annular airflow slot 504; the number of the branch pipes 505 is four, the top of each branch pipe 505 is correspondingly communicated with an airflow outlet of a main branch chamber, and the bottom of each branch pipe 505 is communicated with an airflow generation baffle 506; the airflow-generating shroud 506 comprises two umbrella-shaped shrouds, wherein the first shroud is connected to the bypass duct 505, and the second shroud has a plurality of apertures formed therein.

Rake apparatus 60 includes an elongated nozzle 602, nozzle 602 being secured to flow hood apparatus 50 above main flow-splitting chamber 502 and extending generally through the vertical center of flow hood apparatus 50, nozzle 602 being coaxially disposed with flow hood apparatus 50, the inlet of nozzle 602 being directly above flow hood apparatus 50 and the outlet being within flow-generating shroud 506.

Furthermore, the small holes on the airflow generation enclosing plate 506 are horn holes, the opening angle of each horn hole is 120-150 degrees, the diameter of each horn hole is 0.5-10 mm, and the distance between every two adjacent horn holes is 2-50 mm.

In a further embodiment, as shown in FIG. 3, the screening device 70 is mounted at the bottom of the interior cavity of the underrun device 40. The screening device 70 specifically includes a low-mesh screen 701 located at an upper layer and a high-mesh screen 702 located at a lower layer; the low mesh screen 701 has a mesh size of 100 to 400 mesh, and the high mesh screen 702 has a mesh size of 2500 to 6250 mesh.

The blower in the air source system 80 provides corresponding air flow for the stock bin device 10, the air flow feeding device 20, the posture adjusting device 30, the colliding device 40, the air flow cover device 50 and the rake jetting device 60.

In a further embodiment, as shown in fig. 1 and 2, the bin device 10 includes a bin support frame 102 and a bin 101 mounted on the bin support frame 102, a material inlet 105 and a material recovery port 104 are opened at the top of the bin 101, two discharging outlets of the bin 101 are respectively connected to the inlets of the feeding pipes of the two airflow feeding devices 20, and a discharge valve 103 is mounted at each of the two discharging outlets; an airflow feeding gate valve 205 is installed at an airflow inlet 201 of the airflow feeding device 20, a first gate valve 310 and a second gate valve 311 are respectively and correspondingly installed at inlets of a first inlet posture adjusting auxiliary spray pipe 303 and a second inlet posture adjusting auxiliary spray pipe 304, a third gate valve 312 and a fourth gate valve 313 are respectively and correspondingly installed at inlets of a first outlet posture adjusting auxiliary spray pipe 307 and a second outlet posture adjusting auxiliary spray pipe 308, and a reversing valve 314 is correspondingly installed at an air inlet of an air cylinder 305; a dust remover 401 is arranged at the top of the inner cavity of the clashing device 40, and a dust removal gate valve 403 is arranged on a dust removal outlet 402 of the dust remover 401; an air inlet pipeline connected outside an air inlet 503 of a main flow splitting chamber of the air flow cover device 50 is provided with an air flow cover gate valve 501, and an air inlet pipeline connected outside a spray pipe 602 of the rake shooting device 60 is provided with a rake shooting gate valve 601; the air source system 80 comprises a first fan 801, a second fan 802 and a high-speed fan 803; a first material outlet 404 is arranged at the bottom of the inner cavity of the collision device 40, two opposite sides of the first material outlet 404 are respectively connected with a second material outlet 405 and an air outlet of a second fan 802 through pipelines, and a fifth gate valve 804 is arranged between the second fan 802 and the first material outlet 404; a discharge material recycling port 408 is formed in the side face below the inner cavity of the collision device 40, the discharge material recycling port 408 is communicated with the material recycling port 104 of the storage bin 101, a gate valve six 406 is arranged between the discharge material recycling port 408 and the material recycling port 104, an air inlet of the second fan 802 is connected with the side wall of the storage bin 101, and a gate valve seven 805 is arranged on the corresponding connecting channel; the air inlet of the second fan 802 is additionally connected with a dust removal gate valve 403; the first fan 801 is provided with a plurality of air outlets which are respectively and correspondingly connected with the airflow supply gate valve 205, the airflow cover gate valve 501, the ejection rake gate valve 601, the first gate valve 310, the second gate valve 311, the third gate valve 312 and the fourth gate valve 313; the air outlet of the high-speed fan 803 is connected with the reversing valve 314.

More specifically, the diameter of the airflow pipeline of each fan in the air source system 80 is 10-150 mm; the pipe diameter of the feeding pipe 203 is 30-100 mm, the inclination angle is 10-45 degrees, and the air velocity is 12-40 m/s; the diameter of each posture adjusting auxiliary nozzle of the posture adjusting device 30 is between 5 and 30mm, the air flow speed is between 5 and 15m/s, and the outlet diameter of the posture adjusting device 30 is between 10 and 100 mm; the diameter of the spray pipe of the spray rake device 60 is between 5 and 10mm, the vertical distance between the outlet of the spray pipe of the spray rake device 60 and the outlet of the posture adjusting device 30 is between 10 and 15mm, and the air flow speed is 35 to 60m/s.

In a further embodiment, the bump-down device 40 is a metal outer layer non-metallic lining material; the airflow feeding device 20, the posture adjusting device 30, the airflow cover device 50, the rake jetting device 60 and the screening device 70 are all made of non-metal materials.

The non-metallic material includes: polytetrafluoroethylene, polycarbonate, polyamide, polyacetal, polypropylene, polyphenylene sulfide, polyarylate, unsaturated polyester, phenolic plastic, epoxy plastic, ultrahigh molecular weight polyethylene, modified polyphenylene oxide, and ceramic.

The non-metal lining material in the metal outer layer non-metal lining material comprises: polytetrafluoroethylene, polycarbonate, polyamide, polyacetal, modified polyphenylene oxide, polyester, phenolic plastic, epoxy plastic, ultra-high molecular weight polyethylene, and the thickness of the lining is 10 mm-25 mm.

The working principle of the invention is as follows:

as shown in fig. 1, 2 and 3, the silo 101 is mounted on the silo support frame 102, the raw material is fed into the material inlet 105 of the silo 101, the raw material slides down to the left and right sides of the silo 101 from the middle of the silo 101, at this time, the first fan 801 starts to operate, the pneumatic conveying with the speed of more than 40m/s is sent into the air inlet 201 of the air feeding device 20 through the air feeding gate valve 205, then the discharge valve 103 is opened, the material falls down from the silo 101 and enters the feeding pipe 203 of the air feeding device 20, meanwhile, the air feeding device 20 has a certain contraction opening characteristic at the joint of the lower feeding opening of the feeding pipe 203 and the air inlet 201, a certain negative pressure can be generated at the contraction opening 204, the material is sucked down quickly, and the material reaches the air outlet 202 after being sucked down and accelerated by the air flow and then enters the attitude adjusting device 30.

As shown in fig. 1 and 2, in the present embodiment, the material is accelerated by the airflow feeding device 20 and enters the inlet pipe 301 of the posture adjusting device 30 in an arbitrary state, and because the inlet pipe 301 and the front and rear regions thereof are transparent, a high-speed camera is placed in front of the posture adjusting device 30 for shooting and detecting the moving posture of the material entering the posture adjusting device 30, and the opening and closing of the inlet posture adjusting auxiliary nozzle one 303, the inlet posture adjusting auxiliary nozzle two 304, the outlet posture adjusting auxiliary nozzle one 307, the outlet posture adjusting auxiliary nozzle two 308 and the operation of the air cylinder 305 are controlled and adjusted according to the entering posture of the material.

Specifically, when a material is about to enter the hose 306 in any posture, the first fan 801 can send an air flow into the first inlet posture adjusting auxiliary nozzle 303 and the second inlet posture adjusting auxiliary nozzle 304 through the first gate valve 310 and the second gate valve 311, the first inlet posture adjusting auxiliary nozzle 303 mainly turns the material longitudinally by means of the air flow, the second inlet posture adjusting auxiliary nozzle 304 mainly turns the material transversely by means of the air flow, the first inlet posture adjusting auxiliary nozzle 303 and the second inlet posture adjusting auxiliary nozzle 304 are controlled by the first gate valve 310 and the second gate valve 311 respectively, the first gate valve 310 or the second gate valve 311 is selected to be opened according to the movement posture of the material about to enter the posture adjusting device 30 detected by the camera, so that the material is turned longitudinally or turned transversely, the turned material is about to enter the hose 306 in a smaller area, then the high-speed fan 803 sends the air flow into the cylinder 305 through the reversing valve 314, the reversing valve 314 is controlled by the posture of the material detected by the camera, so that the reversing cylinder 305 above and the below are controlled to extend out, so that the hose 306 is extruded in both the longitudinal direction, and the speed of the hose 306 is reduced. When a material enters the outlet pipeline 302, the first fan 801 can send airflow to the first outlet posture adjusting auxiliary nozzle 307 and the second outlet posture adjusting auxiliary nozzle 308 through the third gate valve 312 and the fourth gate valve 313, the first outlet posture adjusting auxiliary nozzle 307 mainly turns the material longitudinally by means of airflow injection, the second outlet posture adjusting auxiliary nozzle 308 mainly turns the material transversely by means of airflow injection, the first outlet posture adjusting auxiliary nozzle 307 and the second outlet posture adjusting auxiliary nozzle 308 are controlled by the third gate valve 312 and the fourth gate valve 313 respectively, the third gate valve 312 or the fourth gate valve 313 is selected to be opened according to the movement posture of the material to enter the outlet pipeline 302 detected by the camera, so that the material is turned longitudinally or transversely, and the turned material is about to leave the outlet pipeline 302 with a larger windward area and enter the colliding device 40. The posture adjusting device 30 can quickly adjust the moving posture of the materials with different shapes and sizes, and the collision area of the materials is maximized during collision.

As shown in fig. 3, in the embodiment, the material enters the collision device 40, and the collision is performed at the center of the collision device 40, and due to the large collision area of the material, the material is firstly cracked during high-speed collision, then is subjected to crack propagation, and finally is crushed into materials with different sizes. Meanwhile, the first fan 801 sends the airflow to the rake device 60 through the rake jetting gate valve 601, and the rake jetting gate valve 601 is used for controlling the rake device 60 to be opened and closed, so that the intermittent rake jetting function is realized. The primary form of rake assembly 60 is an elongated nozzle 602, which nozzle 602 emits a high velocity air stream to further break up larger sized material in the center of impact. Because the center speed is lowest when the materials collide with each other, strong momentum exchange can be generated between the materials and air, and the crushed materials can begin to escape from the center to the periphery.

As shown in fig. 1, in this embodiment, further, the first fan 801 sends the airflow into the airflow hood device 50 through the airflow hood gate valve 501, the airflow hood gate valve 501 is used to control the opening and closing of the airflow hood device 50, then the airflow enters the main branch chamber airflow inlet 503 of the main branch chamber 502, the airflow further flows downwards from the main branch chamber airflow inlet 503 into the annular airflow slot 504, at this time, the airflow will fully flow around the annular airflow slot 504, then the airflow of the annular airflow slot 504 will be divided downwards into four branch ducts 505 uniformly arranged along the circumference direction of the main branch chamber 502, the air of the branch ducts 505 will enter the airflow generation enclosure 506, the airflow generation enclosure 506 has two layers, there is enough space between the two layers of enclosures to allow the airflow, the second layer has several trumpet holes, each airflow passing through the trumpet holes can become an umbrella-shaped air curtain, each air curtain constitutes a large airflow hood, the airflow range includes the upper part, the front part and the rear part, and if the crushed material collides with the front part, the rear part and the rear part of the large airflow is blocked by the large airflow. Meanwhile, the outlet pipe 302 of the attitude adjusting device 30 has the function of inhibiting the movement of the materials to the left and right sides in addition to the function of providing airflow for accelerating the materials. The blocking effect of the airflow cover device 50 on the multi-directional movement of the crushed materials also reduces the impact of the crushed materials on the wall surface of the collision device, and prolongs the service life of the pneumatic collision machine.

Furthermore, the crushed material can only fall down from the gravity direction under the blocking action of the airflow protection cover in five directions. The crushed materials can be divided into three particle sizes, namely a large particle size, a medium particle size and a small particle size, and the small particle size is powdery, namely the smallest particle size which can be crushed by the airflow collider. Because the crushed materials with uniform size and uniform shape can not be formed in collision under the influence of the materials and the shapes of the materials, the screening device 70 is arranged 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, the material fragments with large granularity are remained on the low-mesh screen 701 on the first layer, the material fragments with medium granularity are remained on the high-mesh screen 702 on the second layer, the material powder with minimum granularity directly falls into the first material outlet 404 through the two layers of screens, then the second fan 802 sends the airflow to the first material outlet 404 through the fifth gate valve 804, at the moment, the seventh gate valve 805 is closed, and the material falling from the first material outlet 404 is also sent to the second material outlet 405 along with the airflow provided by the second fan 802. Then, the second fan 802 starts to suck, at the moment, the dust removal gate valve 403 and the gate valve five 804 are closed, the gate valve six 406 and the gate valve seven 805 are opened, large-particle-size and medium-particle-size material fragments are driven by negative pressure air flow to leave the collision device 40 through the discharge recovery port 408, and then are sent to the material recovery port 104 through the gate valve six 406, and the large-particle-size and medium-particle-size material fragments fall down from the middle of the top of the storage bin 101 to the left side and the right side of the storage bin 101 for new discharging and crushing, so that the circular collision crushing function is realized.

Further, the gate valve six 406, the gate valve seven 805 and the gate valve five 804 are closed, the dedusting gate valve 403 is opened, the second fan 802 starts to suck, under the action of the negative pressure air flow, dust in the collision device 40 enters the deduster 401, the deduster 401 starts to perform dedusting, and the dedusted air flow enters the dedusting gate valve 403 through the dedusting outlet 402 and is discharged through the second fan 802.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A collision split type pneumatic grinder is characterized by comprising a stock bin device, an airflow feeding device, a posture adjusting device, a collision device, an airflow cover device, a rake jetting device, a screening device and an air source system, wherein the airflow feeding device and the posture adjusting device respectively comprise two groups, an airflow outlet of each group of airflow feeding device is correspondingly connected with an inlet of one group of posture adjusting device, the two groups of posture adjusting devices are correspondingly arranged on the left side and the right side of the outer part of the collision device respectively, an outlet of the posture adjusting device is connected with an inner cavity of the collision device, outlet pipelines of the posture adjusting devices are oppositely arranged in the inner cavity of the collision device to form two groups of jet pipes; the material discharged by the stock bin device flows into the posture adjusting device after being accelerated by the airflow feeding device, and flows into the injection pipe positioned in the collision device after being subjected to posture adjustment in the posture adjusting device; the airflow cover device is correspondingly arranged at the top of the outer wall of the collision device, an airflow generation enclosing plate in the airflow cover device can eject an air curtain, and the airflow generation enclosing plate is aligned between the outlets of the two posture adjusting devices and is higher than the outlets of the posture adjusting devices; the rake shooting device is arranged in the airflow hood device, the diameter of the rake shooting device is far smaller than that of the airflow hood device, and the length of the rake shooting device is consistent with or shorter than that of the airflow hood device; the screening device is arranged at the bottom of the inner cavity of the collision device; and a fan in the air source system provides corresponding air flow for the stock bin device, the air flow feeding device, the posture adjusting device, the colliding device, the air flow cover device and the rake jetting device.

2. The split-type pneumatic grinder according to claim 1, wherein the jet pipes of the collision device are arranged in opposite directions, so that the materials are ejected out of the jet pipes at high speed for splitting under the action of the airflow during the discharging collision, the diameter of each jet pipe is 30-100 mm, the airflow speed is 45-60 m/s, and the pipe spacing between the two jet pipes is 30-80 mm.

3. The split-type pneumatic grinder according to claim 1, wherein each set of the pneumatic feeding devices correspondingly comprises a pneumatic feeding tube, one end of the pneumatic feeding tube is a pneumatic inlet, the other end of the pneumatic feeding tube is a pneumatic outlet connected to the inlet pipeline of the posture adjusting device, a feeding tube inclined towards the pneumatic outlet is connected to the wall of the pneumatic feeding tube, and the whole peripheral surface of the pneumatic feeding tube corresponding to the position where the feeding tube is communicated with the pneumatic feeding tube gradually shrinks inwards relative to the peripheral surfaces connected to the two sides of the pneumatic feeding tube to form a shrinking opening.

4. The colliding splitting type pneumatic grinder as claimed in claim 3, wherein each set of posture adjusting device correspondingly comprises a support frame, and the inlet pipeline, the outlet pipeline, the inlet posture adjusting auxiliary spray pipe I, the inlet posture adjusting auxiliary spray pipe II, the air cylinder, the hose, the outlet posture adjusting auxiliary spray pipe I and the outlet posture adjusting auxiliary spray pipe II which are fixedly arranged in the support frame, the support frame is fixedly connected with the outer wall of the colliding chamber, the inlet pipeline and the outlet pipeline are respectively arranged and fixed on two sides of the support frame in the left-right direction, and the inlet pipeline and the outlet pipeline are connected through the hose; in each group of posture adjusting devices, the inlet of the inlet pipeline is connected with the airflow outlet of the airflow feeding device on the corresponding side, and the outlet of the outlet pipeline is connected with the inner cavity of the colliding device; a high-speed camera for shooting the motion posture of the detected material entering the posture adjusting device is correspondingly arranged in front of the posture adjusting device; the upper end and the front end of the inlet pipeline are respectively and correspondingly provided with a first inlet posture adjusting auxiliary spray pipe and a second inlet posture adjusting auxiliary spray pipe which incline towards the inlets of the inlet pipeline, and the upper end and the front end of the outlet pipeline are respectively and correspondingly provided with a first outlet posture adjusting auxiliary spray pipe and a second outlet posture adjusting auxiliary spray pipe which incline towards the outlets of the outlet pipeline; the inlet pipeline, the hose, the outlet pipeline and the auxiliary spray pipe in the posture adjusting device are all made of transparent non-metallic materials; the upper end and the lower end of the hose are respectively connected with one air cylinder, the two air cylinders are correspondingly installed at the upper end and the lower end of the inner wall of the support frame, and the posture adjusting device controls and adjusts the opening and closing of each posture adjusting auxiliary spray pipe and the action of the air cylinders according to the entering posture of materials.

5. The split-type pneumatic grinder as claimed in claim 4, wherein the airflow hood device comprises a main flow-dividing chamber, flow-dividing pipes and the airflow-generating coaming, which are distributed from top to bottom according to the arrangement positions, the top of the main flow-dividing chamber is provided with a main flow-dividing chamber airflow inlet, the inner center of the main flow-dividing chamber is provided with an annular airflow groove, the bottom of the main flow-dividing chamber is provided with four uniformly arranged main flow-dividing chamber airflow outlets, and the main flow-dividing chamber airflow inlet and the main flow-dividing chamber airflow outlets are both communicated with the annular airflow groove; the top of each shunting pipeline is correspondingly communicated with an airflow outlet of the main shunting chamber, and the bottom of each shunting pipeline is communicated with the airflow generation enclosing plate; the airflow generation enclosing plate comprises two layers of umbrella-shaped enclosing plates, wherein the first layer of enclosing plate is connected with the shunt pipeline, and a plurality of small holes are formed in the second layer of enclosing plate; the small holes in the airflow generation enclosing plate are horn holes, the opening angle of each horn hole is 120-150 degrees, the diameter of each horn hole is 0.5-10 mm, and the distance between every two adjacent horn holes is 2-50 mm.

6. The pneumatic impact crusher according to claim 5, wherein said rake means comprises an elongated nozzle fixed above said main flow-dividing chamber of said air flow shield means and passing entirely through the vertical center of said air flow shield means, said nozzle being arranged coaxially with said air flow shield means, said nozzle having an inlet directly above said air flow shield means and an outlet within said air flow-generating enclosure.

7. The impact splitting type pneumatic grinder of claim 6, wherein the bin device comprises a bin support frame and a bin mounted on the bin support frame, a material inlet and a material recycling port are formed in the top of the bin, two discharging outlets of the bin are respectively and correspondingly connected with feeding pipe inlets of the two air flow feeding devices, and a discharging valve is correspondingly mounted at each of the two discharging outlets; an airflow feeding gate valve is installed at the airflow inlet of the airflow feeding device, a first gate valve and a second gate valve are correspondingly installed at the inlets of the first inlet posture adjusting auxiliary spray pipe and the second inlet posture adjusting auxiliary spray pipe respectively, a third gate valve and a fourth gate valve are correspondingly installed at the inlets of the first outlet posture adjusting auxiliary spray pipe and the second outlet posture adjusting auxiliary spray pipe respectively, and a reversing valve is correspondingly installed at the air inlet of the air cylinder; the top of the inner cavity of the collision device is provided with a dust remover, and a dust removal gate valve is arranged on a dust removal outlet of the dust remover; an airflow cover gate valve is arranged on an air inlet pipeline connected outside an airflow inlet of the main flow-dividing chamber of the airflow cover device, and a rake-shooting gate valve is arranged on an air inlet pipeline connected outside the spray pipe of the rake-shooting device; the air source system comprises a first fan, a second fan and a high-speed fan; a first material outlet is formed in the bottom of an inner cavity of the collision device, two opposite sides of the first material outlet are respectively connected with a second material outlet and an air outlet of the second fan through pipelines, and a fifth gate valve is arranged between the second fan and the first material outlet; a discharge material recycling port is arranged on the side face below the inner cavity of the collision device and is communicated with the material recycling port of the storage bin, a gate valve six is arranged between the discharge material recycling port and the material recycling port, an air inlet of the second fan is connected with the side wall of the storage bin, and a gate valve seven is arranged on a corresponding connecting channel; the air inlet of the second fan is additionally connected with the dedusting gate valve; the first fan is provided with a plurality of air outlets which are respectively and correspondingly connected with the airflow feeding gate valve, the airflow cover gate valve, the ejection rake gate valve, the first gate valve, the second gate valve, the third gate valve and the fourth gate valve; and the air outlet of the high-speed fan is connected with the reversing valve.

8. The air-jet splitter of claim 6, wherein the diameter of the air flow duct of each fan in the air supply system is between 10mm and 150 mm; the pipe diameter of the feeding pipe is 30-100 mm, the inclination angle is 10-45 degrees, and the air velocity is 12-40 m/s; the diameters of all the posture adjusting auxiliary spray pipes of the posture adjusting device are between 5 and 30mm, the air flow speed is between 5 and 15m/s, and the outlet diameter of the posture adjusting device is between 10 and 100 mm; the diameter of a spray pipe of the spray rake device is between 5 and 10mm, the vertical distance between the outlet of the spray pipe of the spray rake device and the outlet of the posture adjusting device is between 10 and 15mm, and the air flow speed is 35 to 60m/s.

9. The split-impact pneumatic crusher of claim 1, wherein the screening device comprises a low mesh screen on the upper deck and a high mesh screen on the lower deck; 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.

10. The pneumatic impact splitter according to any one of claims 1 to 9, wherein the impacting device is a metal outer layer non-metal lining material; the airflow feeding device, the posture adjusting device, the airflow cover device, the rake jetting device and the screening device are all made of non-metallic materials;

the non-metallic material comprises: polytetrafluoroethylene, polycarbonate, polyamide, polyacetal, polypropylene, polyphenylene sulfide, polyarylate, unsaturated polyester, phenolic plastic, epoxy plastic, ultra-high molecular weight polyethylene, modified polyphenylene oxide, ceramic;