A pneumatic multi-mode material mixing system

Abstract

The present application relates to a pneumatic multi-mode material mixing system, belonging to the technical field of pneumatic mixing. It includes a mixing mechanism and an anti-arching mechanism. The mixing mechanism includes a feeding device and a pneumatic device. The feeding device includes a feeding pipe, a premixing pipe, and a mixing bin. There are no less than two feeding pipes. The no less than two feeding pipes are communicated with the premixing pipe. One end of the premixing pipe away from the feeding pipe is in negative pressure communication with the mixing bin. The pneumatic device is arranged on the outer wall of the mixing bin and is used to blow air into the mixing bin to tumble and stir the material by using the air flow. The anti-arching mechanism is movably arranged inside the mixing bin, and the anti-arching mechanism moves inside the mixing bin and turns the material inside the mixing bin. The present application has the beneficial effects that it can not only improve the uniformity and sufficiency of material mixing, but also greatly reduce the resistance when the pneumatic device blows the material, making the material not easy to accumulate, which is beneficial to improving the quality of material mixing and processing.

Description

Technical Field

[0001] This application relates to the field of pneumatic mixing technology, and particularly to a pneumatic multi-mode material mixing system. Background Art

[0002] In the production processes of fields such as chemical industry, food, medicine, new energy, and new materials, people usually need to mix and stir various raw materials, auxiliary materials, or materials of different batches. Therefore, stirring devices are required. Conventional stirring devices include a power source and a stirring shaft. An electric motor serves as the power source, and the output shaft of the electric motor drives the stirring shaft to rotate at a high speed, thereby realizing the stirring work of the product.

[0003] When currently stirring a variety of mixed materials through the stirring shaft, the operator directly inputs the mixed raw materials into the mixing bin in sequence, and the stirring shaft stirs and mixes the materials in the mixing bin.

[0004] However, when stirring in this way, the materials that the stirring shaft cannot reach are prone to accumulate at the bottom of the mixing bin or adhere to the inner wall of the mixing bin, making these materials unable to participate in the mixing and stirring process, resulting in uneven and insufficient mixing and stirring, and further reducing the mixing and processing quality of the materials. Summary of the Invention

[0005] In order to improve the problem that materials are prone to accumulate at the bottom of the mixing bin or adhere to the inner wall of the mixing bin, resulting in uneven and insufficient mixing and stirring, and further reducing the mixing and processing quality of the materials, this application provides a pneumatic multi-mode material mixing system.

[0006] The pneumatic multi-mode material mixing system provided by this application adopts the following technical solutions:

[0007] A pneumatic multi-mode material mixing system, comprising:

[0008] A mixing mechanism, the mixing mechanism includes a feeding device and a pneumatic device. The feeding device includes a feeding pipe, a premixing pipe, and a mixing bin. There are not less than two feeding pipes, and the not less than two feeding pipes are communicated with the premixing pipe. The end of the premixing pipe far from the feeding pipe is in negative pressure communication with the mixing bin; the pneumatic device is arranged on the outer wall of the mixing bin, and the pneumatic device is used to blow air into the mixing bin to realize tumbling and stirring of the materials by using the airflow;

[0009] An arch-breaking mechanism, the arch-breaking mechanism is movably arranged inside the mixing bin, and the arch-breaking mechanism moves inside the mixing bin and turns over the materials in the mixing bin.

[0010] By adopting the above technical solution, various materials enter the premixing pipe through corresponding feeding pipes respectively. Inside the premixing pipe, the various materials are mixed and move under the action of a negative-pressure air flow, undergoing preliminary pneumatic mixing, and then enter the mixing bin. Under the pneumatic action of the pneumatic device, the various materials can be further mixed. During the process of pneumatic mixing, the arch-breaking mechanism continuously breaks the arch and flips the materials in the mixing bin, enabling the various materials to synchronously receive the flipping of the air flow and the arch-breaking mechanism. This can not only further improve the uniformity of material mixing, but also, with the cooperation of the arch-breaking mechanism, greatly reduce the resistance when the pneumatic device blows the materials, making it difficult for the materials to accumulate at the bottom of the mixing bin or adhere to the inner wall of the mixing bin, which is beneficial to improving the quality of material mixing and processing.

[0011] Preferably, the pneumatic device includes a pneumatic driving source, a pneumatic pipe, and a connecting plate. The connecting plate is connected to the bottom of the mixing bin. A connecting hole is formed in the connecting plate. The pneumatic pipe is connected to the connecting plate and is in communication with the connecting hole. The pneumatic driving source is used to convey air flow into the pneumatic pipe.

[0012] By adopting the above technical solution, when the pneumatic driving source is started, the air flow is conveyed through the pneumatic pipe to the connecting plate and enters the interior of the mixing bin through the connecting hole. The air flow blows the materials to flip and mixes the materials.

[0013] Preferably, the pneumatic device further includes a sealing driving source and a sealing block. The sealing driving source is connected to the pipe wall of the pneumatic pipe. The output end of the sealing driving source extends into the pneumatic pipe. The sealing block is arranged at the output end of the sealing driving source, and the sealing block is used to block the connecting hole.

[0014] By adopting the above technical solution, when the sealing driving source operates, it drives the sealing block to move away from the connecting hole, making the pneumatic pipe communicate with the connecting hole, facilitating the air flow to enter the mixing bin. When the sealing driving source drives the sealing block to move close to the connecting hole and block the connecting hole, the risk of material clogging the connecting hole is reduced when the pneumatic driving source stops operating.

[0015] Preferably, the arch-breaking mechanism includes a primary arch-breaking device. The primary arch-breaking device includes a primary driving source and an arch-breaking member. An installation plate is connected inside the connecting plate. The primary driving source is arranged on the installation plate. The arch-breaking member is arranged at the output end of the primary driving source, and the arch-breaking member is a cone.

[0016] By adopting the above technical solution, when the primary driving source operates, it drives the arch-breaking member to reciprocally move out and retract, enabling the conical arch-breaking member to continuously flip the materials in the mixing bin and reducing the possibility of material adhesion.

[0017] Preferably, the arch-breaking mechanism also includes a secondary arch-breaking device, which includes an arch-breaking upright rod and a swinging thorn rod. The arch-breaking upright rod is arranged on a mounting plate, the swinging thorn rod is rotatably connected to the arch-breaking upright rod, and a swinging torsion spring is provided on the rotating shaft of the swinging thorn rod and the arch-breaking upright rod.

[0018] By adopting the above technical solution, the swinging thorn rod is driven to rotate relative to the arch-breaking upright rod. After the drive is released, the swinging thorn rod is reset and rotated under the action of the swing torsion spring to achieve reciprocating swing, thereby further turning over the materials in the mixing bin.

[0019] Preferably, the secondary arch breaking device also includes a sliding block and a connecting rope. A mounting vertical plate is provided on the mounting plate. The sliding block is slidably arranged relative to the mounting vertical plate in a vertical direction. One end of the connecting rope is connected to the sliding block, and the other end of the connecting rope is wrapped around the arch breaking vertical rod and connected to the rod end of the swinging thorn rod.

[0020] By adopting the above technical solution, the sliding block slides along the mounting vertical plate, pulling the connecting rope, and the connecting rope pulls the swinging thorn rod to swing.

[0021] Preferably, the sliding block is provided with an abutment block, the arch-breaking member is provided with a push plate, the push plate abuts against the abutment block, the arch-breaking member moves, and the push plate pushes the abutment block to carry the sliding block to move synchronously.

[0022] By adopting the above technical solution, the arch breaking piece moves, driving the push plate to move synchronously, and the push plate abuts against the abutment block to drive the abutment block to move accordingly, thereby driving the sliding block to move, so as to pull the swinging thorn rod to swing.

[0023] Preferably, the secondary arch breaking device also includes a rotating ring, a connecting spring and a rotating vertical plate. The rotating ring is rotatably connected to the mounting plate, the rotating ring is coaxial with the arch breaking member, one end of the connecting spring is connected to the rotating ring, and the other end is connected to an end of the sliding block away from the connecting rope, the arch breaking vertical rod and the rotating ring are both fixedly connected to the rotating vertical plate, the sliding block is slidably connected to the rotating vertical plate in the vertical direction, and the arch breaking vertical rod is rotatably connected to the mounting plate.

[0024] By adopting the above technical solution, when the sliding block moves, the connecting spring is in a stretched state, the swinging thorn rod swings out, and the rotating ring drives the rotating vertical plate, the sliding block and the arch-breaking vertical rod to rotate synchronously, thereby further turning the material, making the material always in a moving state, and further reducing the resistance of the pneumatic device when blowing.

[0025] Preferably, the secondary arch breaking device also includes a secondary driving source and a driving gear ring. The secondary driving source is arranged on the mounting plate. A bevel gear is provided at the output end of the secondary driving source. The driving gear ring is coaxially connected to the rotating ring, and the bevel gear is meshed with the driving gear ring.

[0026] By adopting the above technical solution, the secondary drive source operates to drive the bevel gear to rotate, and the bevel gear drives the drive ring gear to rotate, thereby driving the rotation of the rotating ring.

[0027] Preferably, the mixing mechanism further includes a reflux device, and the reflux device includes a reflux pipe and a three-way connection valve. One end of the reflux pipe is connected to the bottom of the mixing bin, and the other end is connected to the top of the mixing bin. The three-way connection valve is arranged on the reflux pipe, and the end of the three-way connection valve away from the reflux pipe is connected to a discharge bin.

[0028] By adopting the above technical solution, the three-way connection valve connects the reflux pipe and the discharge bin. The material after mixing is moved into the discharge bin through the reflux pipe. The three-way connection valve makes the reflux pipe communicate, and the material moves through the reflux pipe and then moves into the mixing bin again, so that part of the material originally located at the bottom of the mixing bin flows back to the top of the mixing bin, and the material is mixed again vertically as a whole, further improving the mixing uniformity.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. Through the setting of the pneumatic device and the arch-breaking mechanism, various materials enter the premixing pipe through the corresponding feeding pipes respectively. In the premixing pipe, under the action of the negative pressure air flow, the materials are mixed and moved while being mixed, and preliminary pneumatic mixing is carried out. Then, they enter the mixing bin. Under the pneumatic action of the pneumatic device, the various materials can be further mixed. During the process of pneumatic mixing, the arch-breaking mechanism continuously breaks the arch and turns the materials in the mixing bin, so that the various materials synchronously receive the turning of the air flow and the turning of the arch-breaking mechanism. This can not only further improve the mixing uniformity of the materials, but also, with the cooperation of the arch-breaking mechanism, greatly reduce the resistance when the pneumatic device blows the materials, making it difficult for the materials to accumulate at the bottom of the mixing bin or adhere to the inner wall of the mixing bin, which is beneficial to improving the quality of material mixing and processing;

[0031] 2. Through the setting of the sliding block and the swinging thorn rod, when the sliding block moves, the connecting spring is in a stretched state, and the swinging thorn rod swings out. The rotating ring drives the rotating vertical plate, the sliding block and the arch-breaking vertical rod to rotate synchronously, realizing further turning of the materials, making the materials always in a moving state, and further reducing the resistance when the pneumatic device blows air. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the pneumatic multi-mode material mixing system in the embodiment of the present application.

[0033] Figure 2 It is a schematic diagram of the structure of the pneumatic device in the embodiment of the present application.

[0034] Figure 3 It is a schematic structural diagram for reflecting the positional relationship between the pneumatic device and the arch-breaking device in the embodiment of the present application.

[0035] Figure 4 It is a schematic structural diagram for reflecting the arch-breaking device in the embodiment of the present application.

[0036] Figure 5 It is a schematic diagram of the internal detailed structure for reflecting the arch-breaking device in the embodiment of the present application.

[0037] Explanation of reference numerals: 1. Feeding device; 11. Feeding pipe; 12. Premixing pipe; 13. Mixing bin; 131. Discharging pipe; 132. Auxiliary air blowing pipe; 133. Discharging valve; 14. Negative pressure separation device; 2. Pneumatic device; 21. Pneumatic pipe; 211. Elbow pipe; 212. Straight pipe; 213. Installation pipe section; 214. Fixed connection plate; 22. Pneumatic main pipe; 23. Connection plate; 24. Connection hole; 25. Sealing driving source; 26. Sealing block; 3. Primary arch-breaking device; 31. Installation plate; 32. Reinforcing rod; 33. Primary driving source; 34. Arch-breaking member; 35. Pushing plate; 4. Secondary arch-breaking device; 41. Secondary driving source; 411. Bevel gear; 42. Rotating ring; 421. Driving gear ring; 43. Installation vertical plate; 431. Moving sliding groove; 44. Sliding block; 441. Connection spring; 442. Connection rope; 443. Abutting block; 45. Rotating vertical plate; 46. Arch-breaking vertical rod; 461. Limiting pulley; 47. Oscillating thorn rod; 471. Oscillating torsion spring; 5. Return device; 51. Return pipe; 52. Three-way connection valve; 53. Discharge bin; 54. Sampler. Detailed implementation manners

[0038] The following will further elaborate on the present application in conjunction with the attached Figures 1-5 for a more detailed description.

[0039] The embodiment of the present application discloses a pneumatic multi-mode material mixing system. As Figure 1 shown, it includes a mixing mechanism. The mixing mechanism includes a feeding device 1. The feeding device 1 includes a feeding pipe 11, a premixing pipe 12, and a mixing bin 13. There are no less than two feeding pipes 11, and no less than two feeding pipes 11 are all communicated with the premixing pipe 12. In this embodiment, three feeding pipes 11 are provided. A negative pressure separation device 14 is connected to the mixing bin 13, and the end of the premixing pipe 12 far from the feeding pipe 11 is connected to the negative pressure separation device 14.

[0040] As Figure 2 and 3As shown, the mixing mechanism further includes a pneumatic device 2. There are several groups of the pneumatic device 2. Each single group of the pneumatic device 2 includes a pneumatic driving source, a pneumatic pipe 21, and a connecting plate 23. The pneumatic driving source (not shown in the figure) is connected outside the mixing bin 13 and is used to convey compressed air. The connecting plate 23 is fixedly connected to the bottom of the mixing bin 13. A number of connecting holes 24 are formed in the connecting plate 23. The pneumatic pipe 21 includes an elbow pipe 211 and a straight pipe 212 connected by a flange, and a mounting pipe section 213 fixedly connected perpendicularly to one end of the straight pipe 212 away from the elbow pipe 211. The mounting pipe section 213 is communicated with the straight pipe 212. One ends of several elbow pipes 211 away from the straight pipes 212 are connected to a pneumatic main pipe 22. The mounting pipe section 213 is fixedly connected to the connecting plate 23. A fixing connecting plate 214 is welded to one end of the mounting pipe section 213 away from the connecting plate 23. A through hole is formed in the fixing connecting plate 214 along its thickness direction. The pneumatic pipe 21 is communicated with the connecting hole 24. The pneumatic driving source is used to convey air flow into the pneumatic pipe 21.

[0041] As Figure 2 and 3 shown, the pneumatic device 2 further includes a sealing driving source 25 and a sealing block 26. The sealing driving source 25 is a sealing cylinder. The sealing driving source 25 is fixedly connected to the fixing connecting plate 214 by bolts. The piston rod of the sealing driving source 25 passes through the fixing connecting plate 214 and extends into the interior of the mounting pipe section 213. The sealing block 26 is fixedly connected to the end of the piston rod of the sealing driving source 25. The sealing block 26 is made of rubber material. When the sealing driving source 25 operates, it drives the sealing block 26 to move away from the connecting hole 24. When the sealing block 26 moves to the lower part of the communicating part of the straight pipe 212 and the mounting pipe section 213, the pneumatic pipe 21 can be communicated with the connecting hole 24. The pneumatic driving source is started, and the air flow is conveyed to the connecting plate 23 through the pneumatic pipe 21 and enters the interior of the mixing bin 13 through the connecting hole 24. The air flow blows the materials to turn over and mixes the materials. The sealing driving source 25 drives the sealing block 26 to move close to the connecting hole 24 and blocks the connecting hole 24, reducing the risk of material blockage of the connecting hole 24 when the pneumatic driving source stops operating.

[0042] Multiple materials respectively enter the premixing pipe 12 through corresponding feeding pipes 11. The multiple materials are in the premixing pipe 12 and are mixed and moved while being under the action of negative pressure air flow for preliminary pneumatic mixing. Then they enter the mixing bin 13. Under the pneumatic action of the pneumatic device 2, the multiple materials can be further mixed, effectively improving the mixing uniformity of the materials, reducing material adhesion, or the possibility of materials adhering to the interior of the mixing bin 13.

[0043] As Figure 4 and 5As shown, the mixing system further includes an arch-breaking mechanism. The arch-breaking mechanism includes a primary arch-breaking device 3. The primary arch-breaking device 3 includes a primary driving source 33 and an arch-breaking member 34. A number of reinforcing rods 32 are evenly and fixedly connected along the inner wall of the connecting plate 23 in a circumferential direction. One end of the reinforcing rod 32 away from the connecting plate 23 is connected to a mounting plate 31. The primary driving source 33 is fixedly connected to the mounting plate 31. The primary driving source 33 is a primary cylinder. The arch-breaking member 34 is fixedly connected to the end of the piston rod of the primary driving source 33. The arch-breaking member 34 is a cone. When the primary cylinder operates, it drives the arch-breaking member 34 to extend and retract reciprocally, so that the conical arch-breaking member 34 continuously stirs the materials in the mixing bin 13, reducing the possibility of material adhesion.

[0044] As Figure 3 and 5 shown, the arch-breaking mechanism further includes a secondary arch-breaking device 4. The secondary arch-breaking device 4 includes a secondary driving source 41 and a rotating ring 42. The secondary driving source 41 is fixedly connected to the bottom of the mounting plate 31. The secondary driving source 41 is a secondary motor. A bevel gear 411 is fixedly connected to the end of the output shaft of the secondary driving source 41. The rotating ring 42 is rotatably connected to the mounting plate 31. A driving gear ring 421 is coaxially and fixedly connected to the rotating ring 42. The bevel gear 411 meshes with the driving gear ring 421.

[0045] As Figure 4 and 5 shown, a mounting vertical plate 43 is coaxially and fixedly connected to the arch-breaking member 34 on the mounting plate 31. The mounting vertical plate 43 is arranged along the outer circumference of the arch-breaking member 34. The mounting vertical plate 43 is hollow. The secondary arch-breaking device 4 further includes a rotating vertical plate 45, a sliding block 44 and an arch-breaking vertical rod 46. The rotating vertical plate 45 is fixedly connected to the rotating ring 42. The sliding block 44 is slidably connected to the rotating vertical plate 45. An abutting block 443 is fixedly connected to the sliding block 44. A moving chute 431 for placing and moving the abutting block 443 is provided on the mounting vertical plate 43. A pushing plate 35 is fixedly connected along the circumference of the arch-breaking member 34. The pushing plate 35 abuts against the abutting block 443. One end of the rotating vertical plate 45 away from the rotating ring 42 is fixedly connected to the arch-breaking vertical rod 46. The arch-breaking vertical rod 46 is rotatably connected to the mounting plate 31, that is, the arch-breaking vertical rod 46 can rotate relative to the mounting plate 31 and cannot slide relative to the mounting plate 31.

[0046] As Figure 5As shown, the arch-breaking upright 46 is rotatably connected with a swinging thorn rod 47, and a swinging torsion spring 471 is provided on the rotating shaft of the swinging thorn rod 47 and the arch-breaking upright 46. The end of the swinging thorn rod 47 is fixedly connected with a connecting rope 442, and the arch-breaking upright 46 is fixedly connected with a limiting pulley 461, and the other end of the connecting rope 442 after being wound around the limiting pulley 461 is fixedly connected to the sliding block 44. In this embodiment, three swinging thorn rods 47, connecting ropes 442 and limiting pulleys 461 are provided. A connecting spring 441 is fixedly connected to the side of the sliding block 44 away from the connecting rope 442, and the other end of the connecting spring 441 is fixedly connected to the rotating ring 42.

[0047] When the arch-breaking mechanism is not in operation, the sliding block 44 pulls the connecting rope 442, so that the swinging thorn rod 47 is in a position to fit the arch-breaking upright rod 46 under the pull of the connecting rope 442. When the arch-breaking mechanism is in operation, the primary cylinder operates, driving the arch-breaking member 34 to move upward, the push plate 35 abuts against the abutment block 443 and drives the abutment block 443 to move therewith, driving the sliding block 44 to move, and the connecting spring 441 is stretched. The sliding block 44 moves upward, releasing the tension on the connecting rope 442, and under the action of the swing torsion spring 471, the swinging thorn rod 47 is driven to swing relative to the arch-breaking upright rod 46. In this embodiment, three swinging thorn rods 47 are provided, and the elastic force of the connecting spring 441 is greater than the sum of the torsion of the three swing torsion springs 471.

[0048] When the swinging thorn rod 47 swings out, the secondary driving source 41 drives the bevel gear 411 to rotate, and the bevel gear 411 drives the driving gear ring 421 to rotate, thereby driving the rotating ring 42 to rotate, and the rotating ring 42 drives the rotating plate 45, the sliding block 44 and the arch-breaking rod 46 to rotate synchronously. Through the operation of the arch-breaking mechanism, the material in the mixing bin 13 is stirred in multiple dimensions and directions.

[0049] like Figure 1 As shown, a feeding pipe 131 is fixedly connected to the bottom of the mixing bin 13, and an auxiliary air blowing pipe 132 and a feeding valve 133 are fixedly connected to the wall of the feeding pipe 131. The auxiliary air blowing pipe 132 is tilted upward toward the inside of the mixing bin 13, and cooperates with the pneumatic device 2 to achieve air blowing in the mixing bin 13. The feeding valve 133 is closed during mixing processing, and is opened when discharging is required.

[0050] like Figure 1 As shown, the mixing device further includes a reflux device 5, which includes a sampler 54, a reflux pipe 51 and a three-way connecting valve 52. One end of the reflux pipe 51 is connected to the discharge pipe 131, and the other end is connected to the top of the mixing bin 13. The three-way connecting valve 52 is fixedly connected to the reflux pipe 51, and the other end of the three-way connecting valve 52 is connected to the discharge bin 53. The sampler 54 is arranged on the mixing bin 13, and the sampler 54 is used to randomly sample the material in the mixing bin 13.

[0051] The mixed material freely falls into the discharge bin 53 after passing through the blanking pipe 131, and the sampler 54 randomly samples the material in the mixing bin 13. If the mixing degree of the sampled material meets the design requirements, the material can be stored in the discharge bin 53. If the mixing degree of the sampled material still does not meet the design requirements, the material moves from the discharge bin 53 back to the mixing bin 13 through the reflux pipe 51, causing some of the material originally at the bottom of the mixing bin 13 to reflux and move to the top of the mixing bin 13, thereby further improving the mixing uniformity.

[0052] The implementation principle of the pneumatic multi-mode material mixing system according to the embodiment of the present application is as follows:

[0053] Various materials enter the premixing pipe 12 through the corresponding feed pipes 11. In the premixing pipe 12, under the action of the negative pressure air flow, the various materials are mixed and move at the same time for preliminary pneumatic mixing, and then enter the mixing bin 13. Under the pneumatic action of the pneumatic device 2, the various materials can be further mixed. During the pneumatic mixing process, the arch-breaking member 34 reciprocates in the vertical direction, the swinging thorn rod 47 swings accordingly, and the rotating ring 42 drives the swinging thorn rod 47 to rotate. With multi-dimensional cooperation, the materials in the mixing bin 13 are continuously broken and turned over, so that the various materials can synchronously receive the turning of the air flow and the turning of the arch-breaking mechanism. This can not only further improve the mixing uniformity of the materials, but also, with the cooperation of the arch-breaking mechanism, greatly reduce the resistance when the pneumatic device 2 blows the materials, making it difficult for the materials to accumulate at the bottom of the mixing bin or adhere to the inner wall of the mixing bin, which is beneficial to improving the quality of material mixing and processing.

[0054] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A pneumatic multi-mode material mixing system, characterized in that: include: A mixing mechanism, the mixing mechanism comprising a feeding device (1) and a pneumatic device (2), the feeding device (1) comprising a feeding pipe (11), a premixing pipe (12) and a mixing bin (13), the feeding pipe (11) being provided with at least two, the at least two feeding pipes (11) being connected to the premixing pipe (12), the end of the premixing pipe (12) away from the feeding pipe (11) being connected to the mixing bin (13) by negative pressure; the pneumatic device (2) being provided on the outer wall of the mixing bin (13), the pneumatic device (2) being used for blowing air into the mixing bin (13) so as to achieve tumbling and stirring of the material by utilizing the airflow; The pneumatic device (2) comprises a pneumatic driving source, a pneumatic tube (21) and a connecting plate (23), wherein the connecting plate (23) is connected to the bottom of the mixing bin (13), a connecting hole (24) is provided on the connecting plate (23), the pneumatic tube (21) is connected to the connecting plate (23), the pneumatic tube (21) is in communication with the connecting hole (24), and the pneumatic driving source is used to convey airflow into the pneumatic tube (21); An arch-breaking mechanism, the arch-breaking mechanism being movably arranged inside the mixing bin (13), the arch-breaking mechanism being movable inside the mixing bin (13) and turning over the materials inside the mixing bin (13); The arch breaking mechanism comprises a primary arch breaking device (3), the primary arch breaking device (3) comprises a primary driving source (33) and an arch breaking member (34), the connecting plate (23) is connected with a mounting plate (31), the primary driving source (33) is arranged on the mounting plate (31), the arch breaking member (34) is arranged at the output end of the primary driving source (33), and the arch breaking member (34) is a cone; The arch-breaking mechanism further comprises a secondary arch-breaking device (4), the secondary arch-breaking device (4) comprising an arch-breaking upright rod (46) and a swinging thorn rod (47), the arch-breaking upright rod (46) being arranged on the mounting plate (31), the swinging thorn rod (47) being rotatably connected to the arch-breaking upright rod (46), and a swinging torsion spring (471) being arranged on the rotating shaft of the swinging thorn rod (47) and the arch-breaking upright rod (46); The secondary arch-breaking device (4) further comprises a sliding block (44) and a connecting rope (442); a mounting vertical plate (43) is provided on the mounting plate (31); the sliding block (44) is slidably arranged relative to the mounting vertical plate (43) in a vertical direction; one end of the connecting rope (442) is connected to the sliding block (44); the other end of the connecting rope (442) is wound around the arch-breaking vertical rod (46) and connected to the rod end of the swinging thorn rod (47).

2. A pneumatic multi-mode material mixing system according to claim 1, characterized in that: The pneumatic device (2) further comprises a sealing drive source (25) and a sealing block (26); the sealing drive source (25) is connected to the tube wall of the pneumatic tube (21); the output end of the sealing drive source (25) extends into the pneumatic tube (21); the sealing block (26) is arranged at the output end of the sealing drive source (25); and the sealing block (26) is used to seal the connection hole (24).

3. A pneumatic multi-mode material mixing system according to claim 2, characterized in that: The sliding block (44) is provided with an abutting block (443), and the arch-breaking member (34) is provided with a pushing plate (35). The pushing plate (35) abuts against the abutting block (443), and when the arch-breaking member (34) moves, the pushing plate (35) pushes the abutting block (443) to carry the sliding block (44) to move synchronously.

4. A pneumatic multi-mode material mixing system according to claim 3, characterized in that: The secondary arch-breaking device (4) further comprises a rotating ring (42), a connecting spring (441) and a rotating vertical plate (45); the rotating ring (42) is rotatably connected to the mounting plate (31); the rotating ring (42) is coaxial with the arch-breaking member (34); one end of the connecting spring (441) is connected to the rotating ring (42); the other end is connected to an end of the sliding block (44) away from the connecting rope (442); the arch-breaking vertical rod (46) and the rotating ring (42) are both fixedly connected to the rotating vertical plate (45); the sliding block (44) is slidably connected to the rotating vertical plate (45) in a vertical direction; and the arch-breaking vertical rod (46) is rotatably connected to the mounting plate (31).

5. A pneumatic multi-mode material mixing system according to claim 4, characterized in that: The secondary arch breaking device (4) further comprises a secondary driving source (41) and a driving gear ring (421); the secondary driving source (41) is arranged on the mounting plate (31); a bevel gear (411) is arranged at the output end of the secondary driving source (41); the driving gear ring (421) is coaxially connected to the rotating ring (42); and the bevel gear (411) is meshed with the driving gear ring (421).

6. The pneumatic multi-mode material mixing system according to claim 1, characterized in that: The mixing mechanism further comprises a reflux device (5), wherein the reflux device (5) comprises a reflux pipe (51) and a three-way connecting valve (52), wherein one end of the reflux pipe (51) is connected to the bottom of the mixing bin (13), and the other end is connected to the top of the mixing bin (13), and the three-way connecting valve (52) is arranged on the reflux pipe (51), and one end of the three-way connecting valve (52) away from the reflux pipe (51) is connected to the discharge bin (53).

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