A rotary impact roller mill

Abstract

The present invention provides a rotary impact roller mill, comprising: an inner supporting disk, a plurality of first chutes are evenly arranged at the circumferential edge of the inner supporting disk; a connecting shaft, one end of the connecting shaft is connected to the inner supporting disk; an outer supporting disk, the outer supporting disk is connected to the other end of the connecting shaft, a plurality of second chutes matching the first chutes are evenly arranged at the circumferential edge of the outer supporting disk; an inner rolling roller, comprising a rolling roller body, a first supporting shaft connected to one side of the rolling roller body and a second supporting shaft connected to the other side of the rolling roller body, the first supporting shaft is floatingly arranged in the first chutes. The present invention has the following beneficial effects: the rotary impact roller mill provided by the present invention is a grinding device that can evenly disperse materials to form controllable different thicknesses and different flow material layers according to use needs, and disperse, roll and impact materials to grind materials, and discharge the formed fine powder by flowing air.

Description

Technical Field

[0001] The invention relates to a rotary impact roller mill, belonging to the field of mechanical mills. Background Art

[0002] The grinding mill is the core equipment for preparing powdered materials and is widely used in the fields of building materials, electricity, metallurgy, mining, chemical industry, etc. When the existing mechanical grinding mill is in use, the material to be ground stays in the mill for a short time and is uncontrollable, resulting in low grinding efficiency, high power consumption and steel consumption, and the outer surface of the grinding parts is easily damaged due to long-term friction contact with the material, requiring regular maintenance, which takes a lot of time to disassemble and repair, and wastes a lot of manpower and material resources. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention aims to provide a rotary impact roller mill.

[0004] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0005] A rotary impact roller mill, comprising:

[0006] An inner supporting plate, wherein a plurality of first sliding grooves are evenly arranged at the circumferential edge of the inner supporting plate;

[0007] A connecting shaft, one end of which is connected to the inner supporting disk;

[0008] An external holding plate, the external holding plate is connected to the other end of the connecting shaft, and a plurality of second sliding grooves matching the first sliding grooves are evenly arranged on the circumferential edge of the external holding plate;

[0009] The inner laminating roller comprises a laminating roller body, a first support shaft connected to one side of the laminating roller body and a second support shaft connected to the other side of the laminating roller body. The first support shaft is floatingly arranged in a first slide groove, and the second support shaft is floatingly arranged in a second slide groove.

[0010] Furthermore, it also includes:

[0011] An inner driving shaft, one end of which is connected to the inner supporting plate;

[0012] One end of the driven sprocket wheel 1 is connected to the inner supporting disk, and the other end is connected to the driving sprocket wheel 1 at the output end of the motor 2 through a chain.

[0013] Furthermore, it also includes:

[0014] The blades are arranged in the grinding chamber, mounted on the side of the supporting disk, and arranged on the inner driving shaft.

[0015] Furthermore, it also includes:

[0016] The grinding chamber includes a first side plate, a grinding ring connected to the first side plate and a second side plate connected to the grinding ring. An inner supporting plate, a connecting shaft, an outer supporting plate, an inner grinding roller and blades are arranged inside the grinding chamber. The grinding ring is an annular pressure ring with an inner surface cross-section of a V-shaped groove or a U-shaped groove.

[0017] Furthermore, it also includes:

[0018] A first bearing is sleeved on the outer side of the inner driving shaft;

[0019] An outer driving shaft is sleeved on the outer side of the inner driving shaft and is arranged on the first bearing, and one end of the outer driving shaft is connected and fixed to the first side plate on the grinding chamber;

[0020] The driven sprocket wheel 2 is fixed on the outer side of the outer driving shaft and is connected with the driving sprocket wheel 2 at the output end of the motor 1 through a chain.

[0021] Furthermore, it also includes:

[0022] A supporting base, the supporting base is arranged on the mounting base;

[0023] The second bearing is sleeved on the outer side of the outer driving shaft and is arranged on the supporting base.

[0024] Furthermore, it also includes:

[0025] The discharging rack is in the shape of a horizontally placed truncated cone, and the end with a larger diameter of the discharging rack is connected to the second side plate;

[0026] The feed hopper includes a feed part and a blanking part. One end of the blanking part is connected to the feed part. The blanking part is inclined. The other end of the blanking part passes through the discharge rack and extends into the grinding chamber and matches the annular groove. A through hole matching the blanking part is opened at the center of the external holding plate.

[0027] Furthermore, the rolling roller body is a disc-shaped structure, the outer edge section of the disc-shaped structure is a V-shaped structure or a U-shaped structure, and the outer edge section of the disc-shaped structure matches the V-shaped groove or U-shaped groove on the inner surface of the grinding ring.

[0028] Furthermore, it also includes:

[0029] A sealing member, an end of the discharge rack with a larger diameter is movably connected to the second side plate, and the sealing member is arranged at the connection between the discharge rack and the second side plate;

[0030] The gas-material mixed air flow outlet is connected to the end with a smaller diameter of the discharge rack;

[0031] The support frame is connected to the gas-matter mixed airflow outlet and is movably arranged on the mounting base.

[0032] Furthermore, it also includes:

[0033] A blade mounting member, comprising a blade mounting member body and an air inlet arranged on the blade mounting member body;

[0034] The air flow channel is arranged in the inner driving shaft and communicated with the air intake channel.

[0035] Beneficial effects of the present invention:

[0036] The rotary impact roller mill provided by the present invention starts two motors respectively when working, and drives the inner drive shaft and the outer drive shaft to rotate in opposite directions respectively, thereby driving the grinding ring and the inner rolling roller to rotate. The rotation speed can be adjusted according to needs, and then the material to be ground is evenly added along the feed hopper. After entering the grinding chamber, the material will be scattered toward the grinding ring and dispersed in the V-shaped groove or U-shaped groove on the grinding ring. Then, under the impact and rolling of the inner rolling roller, the material is crushed, and the crushed tiny particles are driven by the airflow generated by the blades on the supporting plate to be discharged from the gas-material mixed airflow outlet and enter the dust collection device behind, thereby completing the work of grinding the material.

[0037] The supporting disk in the rotary impact roller mill provided by the present invention drives the inner crushing roller to rotate and generates centrifugal force. The centrifugal force of different magnitudes can be generated by adjusting the rotation speed of the driving device. The centrifugal force acts on the material in the grinding ring, which can have the effect of stress release on the material particles. At the same time, the V-shaped or U-shaped cross-section design on the grinding ring and the inner crushing roller utilizes the characteristic that the linear speeds of the bottom and side of the V-shaped or U-shaped roller are different when rotating. When the material is between the grinding ring and the inner crushing roller, the material is squeezed and kneaded at the same time, which achieves a good effect for the purpose of grinding.

[0038] The rotary impact roller mill provided by the present invention is a grinding device which can evenly disperse materials on a grinding ring according to use needs, and form a material layer with controllable different thicknesses and different flow speeds, and disperse, crush and impact the materials to grind the materials, and use flowing air to discharge the formed fine powder.

[0039] The present invention achieves asynchronous reverse rotation of the grinding chamber and the inner rolling roller, thereby driving the material entering the grinding chamber to turn over, spreading the material flat on the grinding ring, thereby facilitating the inner rolling roller to grind and squeeze the material, and improving the grinding effect of the powder making operation.

[0040] The present invention adds blades to the inner driving shaft, and then on the basis of the inner driving shaft driving the inner rolling roller to rotate and grind, the blades can be driven by the inner driving shaft to rotate synchronously, thereby generating airflow, and while the airflow flows inside the grinding chamber, the material that has reached a preset fineness during the grinding process is carried out from the gas-material mixed airflow discharge port, and the material that has not reached a fine particle size remains in the grinding chamber for grinding until it is crushed and carried out of the grinding chamber by the airflow.

[0041] The present invention designs the first slide groove, the second slide groove, the first support shaft and the second support shaft so that during the grinding process, the first support shaft and the second support shaft can be slidably connected in the first slide groove and the second slide groove respectively, so that the rolling roller body has a movable and adjustable space, so that the rolling roller body can move in a small range according to the hardness or stacking degree of the material during the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 It is a top view structural schematic diagram of a rotary impact roller mill of the present invention;

[0044] Figure 2 This is a schematic diagram of the internal structure of a rotary impact roller mill of the present invention;

[0045] Figure 3 It is a schematic diagram of the AA cross-sectional structure of a rotary impact roller mill of the present invention;

[0046] Figure 4 The figure is a schematic diagram of the structure of point B of a rotary impact roller mill of the present invention.

[0047] In the figure, 1. mounting base; 2. supporting base; 3. second bearing; 4. external driving shaft; 5. grinding chamber; 6. discharging frame; 7. supporting frame; 8. sealing member; 9. gas-material mixed air flow outlet; 10. feeding hopper; 11. internal driving shaft; 12. driven sprocket one; 13. blades; 14. internal supporting plate; 15. first supporting shaft; 16. external supporting plate; 17. first slide groove; 18. connecting shaft; 19. grinding roller body; 20. second slide groove; 21. second supporting shaft; 22. first bearing; 23. driven sprocket two; 24. motor one; 25. motor two; 26. first side plate; 27. grinding ring; 28. second side plate. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] For example, see Figure 1-4 The present invention provides a technical solution for a rotary impact roller mill, a rotary impact roller mill, comprising an inner supporting plate 14, wherein a plurality of first chutes 17 are evenly arranged at the circumferential edge of the inner supporting plate 14;

[0050] A connecting shaft 18, one end of which is connected to the inner supporting plate 14;

[0051] The outer holding plate 16 is connected to the other end of the connecting shaft 18, and a plurality of second slide grooves 20 matching the first slide grooves 17 are evenly arranged on the circumferential edge of the outer holding plate 16;

[0052] The inner rolling roller includes a rolling roller body 19, a first support shaft 15 connected to one side of the rolling roller body 19, and a second support shaft 21 connected to the other side of the rolling roller body 19. The first support shaft 15 is floatingly set in the first slide groove 17, and the second support shaft 21 is floatingly set in the second slide groove 20. Through the design of the first slide groove 17, the second slide groove 20, the first support shaft 15 and the second support shaft 21, during the grinding process, the first support shaft 15 and the second support shaft 21 can be slidably connected in the first slide groove 17 and the second slide groove 20 respectively, so that the rolling roller body 19 has a movable and adjustable space, so that the rolling roller body 19 can move in a small range according to the hardness or stacking degree of the material during the grinding process.

[0053] In one embodiment, it further includes:

[0054] An inner driving shaft 11, one end of which is connected to an inner supporting plate 14;

[0055] One end of the driven sprocket 12 is connected to the inner supporting plate 14, and the other end is connected to the driving sprocket 1 at the output end of the motor 2 25 through a chain.

[0056] In one embodiment, it further includes:

[0057] The blades 13 are arranged in the grinding chamber 5 , mounted on the side of the inner supporting disk 14 , and arranged on the inner driving shaft 11 .

[0058] In one embodiment, it further includes:

[0059] The grinding chamber 5 includes a first side plate 26, a grinding ring 27 connected to the first side plate 26, and a second side plate 28 connected to the grinding ring 27. The grinding chamber 5 is provided with an inner supporting plate 14, a connecting shaft 18, an outer supporting plate 16, an inner rolling roller and blades 13. The grinding ring is an annular pressure-bearing ring with a V-shaped groove or a U-shaped groove on the inner surface. The outer edge wall of the rolling roller body 19 in the circumferential direction is a V-shaped or inner arc shape. The grinding ring is provided with an inner V-shaped or U-shaped groove and a V-shaped groove on the rolling roller body 19. Or U-shaped outer edge wall design, so that the groove and the outer edge wall fit together, and the material located inside the V-shaped or U-shaped groove can be ground by the inner rolling roller of the V-shaped or U-shaped outer edge wall, and at the same time, it will be squeezed by the inner rolling roller, thereby improving the grinding and crushing effect of the material, and the grinding chamber 5 is fixedly connected to the outer drive shaft 4. When working, the motor 1 24 and the driven sprocket 2 23 drive the grinding chamber 5 to rotate continuously in one direction through the outer drive shaft 4, and its rotation speed can achieve different speeds driven by the driving device.

[0060] In one embodiment, it further includes:

[0061] A first bearing 22 is sleeved on the outer side of the inner driving shaft 11;

[0062] The outer drive shaft 4 is sleeved on the outer side of the inner drive shaft 11 and is arranged on the first bearing 22, and one end of the outer drive shaft 4 is connected and fixed to the first side plate 26 of the grinding chamber 5;

[0063] The driven sprocket 23 is fixed on the outer side of the outer drive shaft 4 and is connected to the driving sprocket 2 at the output end of the motor 1 24 through a chain.

[0064] In one embodiment, it further includes:

[0065] A supporting base 2, wherein the supporting base 2 is arranged on the mounting base 1;

[0066] The second bearing 3 is sleeved on the outer side of the outer driving shaft 4 and is arranged on the supporting base 2 .

[0067] In one embodiment, it further includes:

[0068] The discharging rack 6 is in the shape of a horizontally placed truncated cone, and one end of the discharging rack 6 with a larger diameter is floatingly connected to the second side plate 28;

[0069] The feed hopper 10 includes a feed part and a blanking part. One end of the blanking part is connected to the feed part. The blanking part is inclined. The other end of the blanking part passes through the discharge rack 6 and extends into the grinding chamber 5 and matches the annular groove. A through hole matching the blanking part is opened at the center of the external supporting plate 16.

[0070] In one embodiment, the rolling roller body is a disc-shaped structure, the outer edge section of the disc-shaped structure is a V-shaped structure or a U-shaped structure, and the outer edge section of the disc-shaped structure matches the V-shaped groove or U-shaped groove on the inner surface of the grinding ring.

[0071] In one embodiment, it further includes:

[0072] The sealing member 8 is movably connected to the second side plate 28 at the end with a larger diameter of the discharging frame 6, and the sealing member 8 is arranged at the connection between the discharging frame 6 and the second side plate 28;

[0073] The gas-material mixed air flow outlet 9 is connected to the end with a smaller diameter of the discharge rack 6;

[0074] The support frame 7 is connected to the gas-substance mixed airflow outlet 9 and is movably arranged on the mounting base 1 .

[0075] In one embodiment, it further includes:

[0076] A blade mounting member, comprising a blade mounting member body and an air inlet arranged on the blade mounting member body;

[0077] The air flow channel is arranged in the inner driving shaft 11 and communicated with the air intake channel.

[0078] During operation, first start motor 1 24 and motor 2 25 respectively, driving the grinding chamber 5 and the inner supporting disk 14 and the outer supporting disk 16 to rotate asynchronously in opposite directions, and the speed is adjusted as needed. Then, the material to be ground is evenly added along the feed hopper 10, and the material enters the grinding chamber 5 and is scattered to the grinding ring 27, and dispersed in the V-shaped (or U-shaped) groove of the grinding ring 27. The inner supporting disk 14 and the outer supporting disk 16 drive the inner rolling roller to rotate in the opposite direction to the grinding chamber 5. Under the action of the centrifugal force generated during the rotation, the inner rolling roller will press against the particle material layer in the V-shaped (or U-shaped) groove in the grinding ring 27. The inner rolling roller impacts and rolls the material layer, and the material is crushed. The crushed tiny particles are driven by the airflow generated by the blades 13 and discharged from the gas-material mixed airflow outlet 9, and enter the dust collection device of the subsequent process, completing the work of grinding the material.

[0079] The centrifugal force generated when the supporting disk on the double rotating impact roller mill provided by the present invention drives the inner rolling roller to rotate can be adjusted to different centrifugal forces by adjusting the rotation speed of motor 1 24 and motor 2 25. This centrifugal force acts on the material in the grinding ring 27, which can have the effect of stress release on the material particles. The design of the V-shaped (or U-shaped) outer edge wall of the grinding ring 27 and the inner rolling roller utilizes the characteristic that the linear speeds of the bottom and side surfaces of the two V-shaped (or U-shaped) outer edge wall surfaces are different when they are in rotational contact. When the material falls between the grinding ring 27 and the inner rolling roller, the material is squeezed and kneaded at the same time, thereby achieving the working purpose of grinding.

[0080] During operation, the motor 25 and the driven sprocket 1 12 drive the inner driving shaft 11, the inner supporting plate 14 and the outer supporting plate 16 to rotate in the opposite direction of the grinding ring 27. The inner supporting plate 14 and the outer supporting plate 16 drive several inner rolling rollers to rotate together. Under the action of the centrifugal force generated by the rotation, the inner rolling roller will be in close contact with and compact the grinding ring 27, and the friction force generated in this process causes the inner rolling roller to rotate while revolving with the supporting plate.

[0081] During specific use, the material enters the grinding chamber 5 through the feed hopper 10, and the material gathers in the annular groove on the grinding ring 27. Then, the motor 1 24 drives the driven sprocket 2 23 to rotate through the chain, and the driven sprocket 2 23 rotates through the outer drive shaft 4 to drive the grinding chamber 5 to rotate. Synchronously, under the action of friction, the material in the annular groove will be dispersed on the surface of the annular groove to form a flat layer of flowing material. At the same time, the driven sprocket 12 is driven to rotate through the motor 2 25, and the driven sprocket 12 drives the inner drive shaft 11 to rotate. The rotation of the inner drive shaft 11 drives the inner supporting plate 14 and the outer supporting plate 16 to rotate. The inner supporting plate 14 and the outer supporting plate 16 rotate. 16 When the two rotate, they drive the first support shafts 15 to rotate. The rotation of the first support shafts 15 drives the rolling roller body 19 to rotate. The rolling roller body 19 squeezes and grinds the material inside the annular groove. When the rolling roller body 19 rotates, the centrifugal force generated by its own weight and rotation makes the rolling roller body 19 press against the material layer in the annular groove, dispersing, crushing and grinding the material, thus achieving the effect of material powder making. During the grinding process, the inner drive shaft 11 synchronously drives the blades 13 to rotate, and the blades 13 rotate to output airflow, which brings the material that reaches a preset fineness during the grinding process out from the gas-material mixed airflow outlet 9;

[0082] During the grinding process, the first support shaft 15 and the second support shaft 21 are respectively slidably connected in the first slide groove 17 and the second slide groove 20, so that the rolling roller body 19 has a movable and adjustable space, so that the rolling roller body 19 can move in a small range according to the hardness or stacking degree of the material during the grinding process.

[0083] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A rotary impact roller mill, characterized in that: include: An inner supporting plate, wherein a plurality of first sliding grooves are evenly arranged at the circumferential edge of the inner supporting plate; A connecting shaft, one end of which is connected to the inner supporting disk; An external holding plate, the external holding plate is connected to the other end of the connecting shaft, and a plurality of second sliding grooves matching the first sliding grooves are evenly arranged on the circumferential edge of the external holding plate; The inner laminating roller comprises a laminating roller body, a first support shaft connected to one side of the laminating roller body and a second support shaft connected to the other side of the laminating roller body, wherein the first support shaft is floatingly arranged in the first slide groove and the second support shaft is floatingly arranged in the second slide groove; An inner driving shaft, one end of which is connected to the inner supporting plate; A driven sprocket wheel 1, one end of which is connected to the inner support plate, and the other end of which is connected to a driving sprocket wheel 1 at the output end of the motor 2 through a chain; The grinding chamber comprises a first side plate, a grinding ring connected to the first side plate and a second side plate connected to the grinding ring. An inner supporting plate, a connecting shaft, an outer supporting plate and an inner rolling roller are arranged inside the grinding chamber. The grinding ring is an annular pressure-bearing ring with a V-shaped groove or a U-shaped groove in the inner surface cross section. A first bearing is sleeved on the outer side of the inner driving shaft; An outer driving shaft is sleeved on the outer side of the inner driving shaft and is arranged on the first bearing, and one end of the outer driving shaft is connected and fixed to the first side plate on the grinding chamber; A driven sprocket 2 is fixed on the outer side of the outer drive shaft and is connected to a driving sprocket 2 at the output end of the motor 1 through a chain; A supporting base, the supporting base is arranged on the mounting base; A second bearing is sleeved on the outer side of the outer drive shaft and is arranged on the support base; The discharging rack is in the shape of a horizontally placed truncated cone, and the end with a larger diameter of the discharging rack is connected to the second side plate; The feed hopper includes a feed part and a blanking part. One end of the blanking part is connected to the feed part. The blanking part is inclined. The other end of the blanking part passes through the discharge rack and extends into the grinding chamber and matches the annular groove. A through hole matching the blanking part is opened at the center of the outer holding plate. The rolling roller body is a disc-shaped structure, the outer edge section of the disc-shaped structure is a V-shaped structure or a U-shaped structure, and the outer edge section of the disc-shaped structure matches the V-shaped groove or the U-shaped groove on the inner surface of the grinding ring; A sealing member, an end of the discharge rack with a larger diameter is movably connected to the second side plate, and the sealing member is arranged at the connection between the discharge rack and the second side plate; The gas-material mixed air flow outlet is connected to the end with a smaller diameter of the discharge rack; The support frame is connected to the gas-matter mixed airflow outlet and is movably arranged on the mounting base.

2. A rotary impact roller mill according to claim 1, characterized in that: Also includes: The blades are arranged in the grinding chamber, mounted on the side of the supporting disk, and arranged on the inner driving shaft.

3. A rotary impact roller mill according to claim 2, characterized in that: Also includes: A blade mounting member, comprising a blade mounting member body and an air inlet arranged on the blade mounting member body; The air flow channel is arranged in the inner driving shaft and communicated with the air intake channel.

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