Rotary impact roller flour mill

Abstract

To provide a rotary impact roller flour mill which uniformly disperses materials to form flat layers of material with controllable different thicknesses and different flows, and disperses, grinds and impacts the materials so as to grind the materials, and discharges the formed fine powder by utilizing flowing air.SOLUTION: A rotary impact roller flour mill comprises: an inner clamping disc 14 in which a plurality of first sliding slots 17 are uniformly formed in a circumferential edge, and a connecting shaft whose one end is connected with the inner clamping disc; an outer holding disc 16 which is connected with the other end of the connecting shaft, and in which a plurality of second sliding slots 20 matched with the first sliding slots are evenly formed in the circumferential edge thereof; and an inner grinding roller which comprises a grinding roller body 19, a first supporting shaft connected with one side of the grinding roller body, and a second supporting shaft connected with the other side of the grinding roller body, and in which the first supporting shaft is arranged in the first sliding slot in a movable manner.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention is a rotary impact roller crusher that belongs to the field of mechanical mills. [Background technology]

[0002] Grinders are a key device for producing powder materials and are used in a wide range of fields, including construction, power generation, metallurgy, mining, and the chemical industry. However, in conventional mechanical grinders, the material to be ground remains in the grinder for a short time and is difficult to control, resulting in low grinding efficiency, high power consumption, and high steel wear. Furthermore, the surface of the grinding member is easily damaged by prolonged friction with the material, requiring regular maintenance. Repairs and repairs require a lot of time and involve significant personnel and material costs. Summary of the Invention [Problem to be solved by the invention]

[0003] SUMMARY OF THE INVENTION In response to the shortcomings present in the prior art, it is an object of the present invention to provide a rotary impact roller crusher. [Means for solving the problem]

[0004] In order to achieve the above object, the present invention proposes the following technical solution.

[0005] Rotary impact roller crusher an inner retaining plate having a plurality of first slide slots evenly spaced around its periphery; a connecting shaft having one end connected to the inner retaining plate; an outer retaining plate connected to the other end of the connecting shaft and having a plurality of second slide slots evenly spaced around its periphery to fit into the first slide slots; The inner crushing roller includes a crushing roller body, a first support shaft connected to one side of the crushing roller body, and a second support shaft connected to the other side of the crushing roller body, the first support shaft being movably disposed within the first slide slot, and the second support shaft being movably disposed within the second slide slot.

[0006] Further, an inner drive shaft having one end connected to the inner retaining plate; a first driven sprocket having one end connected to the inner retaining disc and the other end connected via a chain to a first drive sprocket on the output side of the second electric motor;

[0007] The grinding chamber further includes a blade attached to a side of the inner retaining disc and disposed on the inner drive shaft.

[0008] The apparatus further includes a crushing chamber including a first side plate, a crushing ring connected to the first side plate, and a second side plate connected to the crushing ring, with an inner retaining plate, a connecting plate, an outer retaining plate, an inner crushing roller, and a blade disposed therein, and the crushing ring is an annular pressure-receiving ring whose inner surface has V-shaped or U-shaped cross-sectional grooves.

[0009] Further, a first bearing fitted to the outside of the inner drive shaft;

[0010] an outer drive shaft fitted to the outside of the inner drive shaft, disposed on a first bearing, and having one end fixedly connected to the first side plate on the grinding chamber;

[0011] A second driven sprocket is fixed to the outside of the outer drive shaft and connected via a chain to a second drive sprocket on the output side of the first electric motor.

[0012] Furthermore, a support base provided on the mounting base; and a second bearing fitted to the outside of the outer drive shaft and provided on the support base.

[0013] Furthermore, a discharge frame having a horizontally disposed trapezoidal shape, the large diameter end of which is connected to the second side plate; a raw material supply hopper including an input section and a drop section, the drop section being arranged at an angle, one end of the drop section being connected to the input section and the other end of the drop section being extended through the discharge frame into the grinding chamber and directed toward the annular groove, and a through hole formed in the center of the outer holding plate for passing the drop section therethrough.

[0014] Furthermore, the crushing roller body has a disk-shaped structure, the outer edge cross section of the disk-shaped structure is V-shaped or U-shaped, and the outer edge cross section of the disk-shaped structure fits into the V-shaped cross section groove or U-shaped cross section groove on the inner surface of the crushing ring.

[0015] a seal provided at a connection between the second side plate and an ejection frame, the large diameter end of which is movably connected to the second side plate; a mixed airflow outlet connected to the small diameter end of the outlet frame; a support bracket connected to the mixed air flow outlet and movably mounted on the mounting base.

[0016] Furthermore, a blade mount including a blade mount body and an intake passage provided in the blade mount body; an airflow passage formed within the inner drive shaft and in communication with the intake passage; [Effects of the Invention]

[0017] Beneficial effects of the present invention: In the rotary impact roller crusher provided by the present invention, the two electric motors are first started to rotate the inner and outer drive shafts in opposite directions, further rotating the crushing ring and inner crushing roller. The rotation speed can be adjusted as needed. Next, the material to be crushed is evenly fed along the raw material supply hopper. Upon entering the crushing chamber, the material is scattered onto the crushing ring and dispersed into the V-shaped or U-shaped grooves on the crushing ring. The material is then impacted and crushed by the inner crushing roller, resulting in the crushing of the material. The crushed particles are then discharged through the mixed air outlet by the airflow generated by the blades on the holding plate and into the dust collection device for the downstream process. This completes the crushing process.

[0018] The centrifugal force generated by the retaining plate in the rotary impact roller crusher of this invention when rotating the inner crushing roller can be varied by adjusting the rotation speed of the drive unit. This centrifugal force acts on the material inside the crushing ring, effectively relieving stress on the material particles. At the same time, the V- or U-shaped cross-section design of the crushing ring and inner crushing roller utilizes the different linear velocities at the bottom and sides of the V- or U-shaped cross-section as they rotate. When material is placed between the crushing ring and the inner crushing roller, it is simultaneously pressed and kneaded, thereby achieving the desired crushing goal.

[0019] The rotary impact roller crusher provided by the present invention is a crushing device that uniformly distributes materials on a crushing ring according to the needs of use, forms flat layers of materials with controllable thicknesses and flow rates, crushes the materials by dispersing, crushing and impacting the materials, and discharges the formed fine powder using fluidized air.

[0020] According to the present invention, the asynchronous and counter-rotating rotation of both the grinding chamber and the inner crushing roller allows the material entering the grinding chamber to be turned over and spread evenly on the grinding ring, which further facilitates the grinding and pressing of the material by the inner crushing roller, thereby improving the grinding effect of the milling operation.

[0021] The present invention uses a design in which the blade is mounted on the inner drive shaft, and in addition to using the inner drive shaft to rotate the inner crushing roller for grinding, the blade can also be rotated synchronously using the inner drive shaft to generate airflow, which flows through the grinding chamber and simultaneously carries out the material that has reached a predetermined particle size during grinding through the mixed airflow outlet, while the material that has not reached the predetermined particle size remains in the grinding chamber and is ground until it is carried out of the grinding chamber by the airflow.

[0022] According to the present invention, the first slide slot, the second slide slot, the first support shaft, and the second support shaft are designed so that the first support shaft and the second support shaft can be slidably disposed in the first slide slot and the second slide slot, respectively, during grinding, thereby creating a space for the crushing roller body to move and adjust, allowing the crushing roller body to move within a small range depending on the hardness or accumulation of the material during grinding. [Brief explanation of the drawings]

[0023] In order to more clearly describe the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly described below. It is clear that the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these accompanying drawings without creative work. [Figure 1] 1 is a schematic plan view of the structure of a rotary impact roller crusher according to the present invention; [Figure 2] 1 is a schematic diagram of the internal structure of a rotary impact roller crusher according to the present invention. [Figure 3] 1 is a schematic view of the AA cross-sectional structure of a rotary impact roller crusher according to the present invention. [Figure 4] 1 is a structural schematic diagram of the rotary impact roller crusher according to the present invention at point B. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in combination with the accompanying drawings in the embodiments of the present invention. It is clear that the described embodiments are only some of the embodiments of the present invention, and not all of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments that a person skilled in the art can obtain without creative work fall within the scope of protection of the present invention.

[0025] In the first embodiment, referring to Figures 1 to 4, the present invention provides a technical solution of a rotary impact roller crusher. The rotary impact roller crusher includes an inner holding plate 14 having a plurality of first slide slots 17 evenly arranged on the periphery thereof; a connecting shaft 18 having one end connected to the inner retaining disc 14; an outer retaining plate 16 connected to the other end of the connecting shaft 18 and having a plurality of second slide slots 20 evenly spaced around its periphery to fit into the first slide slots 17; The crushing roller includes an inner crushing roller, which includes a crushing roller body 19, a first support shaft 15 connected to one side of the crushing roller body 19, and a second support shaft 21 connected to the other side of the crushing roller body 19, the first support shaft 15 being movably disposed in a first slide slot 17, and the second support shaft 21 being movably disposed in a second slide slot 20. The first slide slot 17, the second slide slot 20, the first support shaft 15, and the second support shaft 21 are designed so that the first support shaft 15 and the second support shaft 21 can be slidably disposed in the first slide slot 17 and the second slide slot 20, respectively, during polishing. This provides a space for the crushing roller body 19 to be movable and adjustable, allowing the crushing roller body 19 to move within a small range depending on the hardness or accumulation of the material during polishing.

[0026] In one embodiment, the inner drive shaft 11 has one end connected to the inner retaining disc 14; and a first driven sprocket 12 having one end connected to the inner retaining disc 14 and the other end connected via a chain to a first driving sprocket 12 on the output side of the second electric motor 25.

[0027] In one embodiment, the grinding chamber 5 further includes a blade 13 attached to the side of the inner retaining disc 14 and disposed on the inner drive shaft 11 .

[0028] In one embodiment, the crushing chamber 5 further includes a first side plate 26, a crushing ring 27 connected to the first side plate 26, and a second side plate 28 connected to the crushing ring 27. The crushing chamber 5 includes an inner retaining disc 14, a connecting plate 18, an outer retaining disc 16, an inner crushing roller, and a blade 13 disposed therein. The crushing ring 27 is an annular pressure-receiving ring having a V-shaped or U-shaped groove on its inner surface. The circumferential cross section of the outer wall of the crushing roller body 19 is V-shaped or U-shaped. The V-shaped or U-shaped groove in the crushing ring and the V-shaped or U-shaped outer wall of the crushing roller body 19 are designed to fit closely to each other. The material in the V-shaped or U-shaped groove is ground by the inner crushing roller with a V-shaped or U-shaped outer wall, and is simultaneously pressed against the V-shaped or U-shaped groove, improving the grinding and crushing effect of the material. In addition, the grinding chamber 5 is fixedly connected to the outer drive shaft 4, and during operation, the first electric motor 24 and the second driven sprocket 23 rotate the grinding chamber 5 continuously in one direction via the outer drive shaft 4, and the rotation speed can be varied depending on the drive device.

[0029] In one embodiment, the inner drive shaft 11 further includes a first bearing 22 fitted on the outer side thereof; an outer drive shaft 4 fitted onto the outside of the inner drive shaft 11, disposed on a first bearing 22, and one end of which is fixedly connected to the first side plate 26 of the grinding chamber 5; and a second driven sprocket 23 fixed to the outside of the outer drive shaft 4 and connected via a chain to a second drive sprocket on the output side of the first electric motor 24 .

[0030] In one embodiment, the device further includes a support base 2 provided on the mounting base 1; The second bearing 3 is fitted onto the outside of the outer drive shaft 4 and is provided on the support base 2.

[0031] In one embodiment, the device further comprises a discharge frame 6 having a horizontally disposed trapezoidal shape, the large diameter end of which is movably connected to the second side plate 28; a raw material supply hopper (10) including an input section and a drop section, the drop section being disposed at an angle, one end of the drop section being connected to the input section and the other end of the drop section being extended through the discharge frame (6) into the crushing chamber (5) and directed toward the annular groove, and a through-hole for passing the drop section through is formed in the center of the outer holding plate (16).

[0032] In one embodiment, the crushing roller body has a disk-shaped structure, the outer edge cross section of the disk-shaped structure is V-shaped or U-shaped, and the outer edge cross section of the disk-shaped structure matches the V-shaped cross section groove or U-shaped cross section groove on the inner surface of the crushing ring.

[0033] In one embodiment, the discharge frame 6 further includes a seal 8 provided at a connection between the discharge frame 6, the large diameter end of which is movably connected to the second side plate 28, and the second side plate 28; a mixed airflow outlet 9 connected to the small diameter end of the outlet frame 6; The fuel cell system includes a support bracket (7) connected to the mixed gas flow outlet (9) and movably provided on the mounting base (1).

[0034] In one embodiment, the blade mount further includes a blade mount body and an air intake passage disposed in the blade mount body; and an air flow passage formed within the inner drive shaft 11 and communicating with the intake passage.

[0035] During operation, the first electric motor 24 and the second electric motor 25 are first started, respectively, to rotate the crushing chamber 5 and the inner and outer retaining discs 14 and 16 asynchronously and in opposite directions, with the rotation speed adjusted as necessary. Next, the material to be crushed is uniformly fed along the raw material supply hopper 10. Upon entering the crushing chamber 5, the material is scattered onto the crushing ring 27 and dispersed into the V-shaped (or U-shaped) grooves of the crushing ring 27. The inner and outer retaining discs 14 and 16 are rotated by the inner crushing roller in the opposite direction to the crushing chamber 5. The centrifugal force generated by the inner crushing roller during rotation pushes the granular material layer in the V-shaped (or U-shaped) grooves of the crushing ring 27, causing the inner crushing roller to apply impact and pressure to the material layer, crushing the material. The crushed fine particles are then discharged from the mixed airflow outlet 9 by the airflow generated by the blade 13 and enter the dust collection device for the downstream process. This completes the crushing process.

[0036] The centrifugal force generated by the retaining plate of the double-rotation impact roller crusher provided by this invention when rotating the inner crushing roller can be varied by adjusting the rotation speeds of the first electric motor 24 and the second electric motor 25. This centrifugal force acts on the material in the crushing ring 27, relieving stress on the material particles. The V-shaped (or U-shaped) cross-sectional outer walls of the crushing ring 27 and the inner crushing roller are designed so that the linear velocities at the bottom, sides, and surfaces of the two V-shaped (or U-shaped) cross-sectional outer walls vary as they rotate and come into contact. When the material falls between the crushing ring 27 and the inner crushing roller, it is simultaneously pressed and kneaded, achieving the purpose of crushing.

[0037] During operation, the second electric motor 25 and the first driven sprocket 12 rotate the inner drive shaft 11, the inner retaining disc 14, and the outer retaining disc 16 in the opposite direction to the crushing ring 27, and the inner retaining disc 14 and the outer retaining disc 16 rotate the multiple inner crushing rollers together, and the inner crushing rollers are pressed tightly against the crushing ring 27 by the centrifugal force generated by the rotation, and the friction force generated in this process causes the inner crushing rollers to revolve along with the crushing ring 27 and rotate on their own axes at the same time.

[0038] In actual use, material enters the grinding chamber 5 through the raw material supply hopper 10 and collects in the annular groove on the grinding ring 27. Next, the first electric motor 24 rotates the second driven sprocket 23 via a chain, which in turn rotates the grinding chamber 5 via the outer drive shaft 4. Friction distributes the material in the annular groove across the surface of the annular groove, forming a flat layer of flowing material. Simultaneously, the second electric motor 25 rotates the first driven sprocket 12, which in turn rotates the inner drive shaft 11, which in turn rotates the inner and outer retaining discs 14 and 16. As both the inner and outer retaining discs 14 and 16 rotate, they also rotate the multiple first support shafts 15, which in turn rotate the crushing roller body 19, which presses and grinds the material in the annular groove. When the crushing roller body 19 rotates, the crushing roller body 19 is pressed against the material layer in the annular groove by its own weight and centrifugal force generated by its rotation, thereby achieving the effects of dispersing, crushing and grinding the material, and milling the material. During grinding, the inner drive shaft 11 synchronously rotates the blade 13, which rotates and sends out an airflow, and the airflow carries the material that has reached a predetermined particle size during grinding out of the mixed airflow outlet 9.

[0039] During grinding, the first support shaft 15 and the second support shaft 21 can be slidably disposed in the first slide slot 17 and the second slide slot 20, respectively. This provides a space for the crushing roller body 19 to move and adjust, allowing the crushing roller body 19 to move within a small range during grinding depending on the hardness or accumulation of the material.

[0040] Although the present specification describes embodiments, each embodiment does not include only one independent technical solution, and the description in this specification is for clarity only, and those skilled in the art should view the specification as a whole. The technical solutions in each example can be appropriately combined to form other embodiments that can be understood by those skilled in the art. [Explanation of symbols]

[0041] 1 Mounting base 2 Support Base 3 Second bearing 4 outer drive shaft 5. Grinding chamber 6 Ejection frame 7 Support Bracket 8 Seals 9 Mixed air flow outlet 10 Raw material supply hopper 11 Inner drive shaft 12 First driven sprocket 13 Blades 14 Inner holding plate 15 First support shaft 16 Outer holding plate 17 First slide slot 18 Connecting shaft 19 Crushing roller body 20 Second slide slot 21 Second support shaft 22 First bearing 23 Second driven sprocket 24 First electric motor 25 Second electric motor 26 First side panel 27 Crushing Ring 28 Second side panel

Claims

1. A rotary impact roller crusher, an inner holding plate having a plurality of first slide slots evenly provided on a periphery thereof; and a connecting shaft having one end connected to the inner holding plate; an outer retaining plate connected to the other end of the connecting shaft and having a plurality of second slide slots evenly spaced around its periphery, the second slide slots fitting into the first slide slots; an inner crushing roller including a crushing roller body, a first support shaft connected to one side of the crushing roller body, and a second support shaft connected to the other side of the crushing roller body, the first support shaft being movably disposed within the first slide slot, and the second support shaft being movably disposed within the second slide slot; an inner drive shaft having one end connected to the inner retaining plate; a first driven sprocket having one end connected to the inner retaining disc and the other end connected via a chain to a first driving sprocket on the output side of the second electric motor; a crushing chamber including a first side plate, a crushing ring connected to the first side plate, and a second side plate connected to the crushing ring, and having an inner retaining plate, a connecting plate, an outer retaining plate, and an inner crushing roller disposed therein, the crushing ring being an annular pressure-receiving ring having an inner surface with a V-shaped cross-sectional groove or a U-shaped cross-sectional groove; a first bearing fitted to the outside of the inner drive shaft; an outer drive shaft fitted onto the outer side of the inner drive shaft, disposed on a first bearing, and having one end fixedly connected to the first side plate on the grinding chamber; a second driven sprocket fixed to the outer side of the outer drive shaft and connected via a chain to a second drive sprocket on the output side of the first electric motor; a support base provided on the mounting base; a second bearing fitted to the outside of the outer drive shaft and provided on the support base; a discharge frame having a horizontally disposed trapezoidal shape, the large diameter end of which is connected to the second side plate; a raw material supply hopper including an input section and a drop section, the drop section being disposed at an angle, one end of the drop section being connected to the input section and the other end of the drop section being extended through the discharge frame into the grinding chamber and directed toward the annular groove, and a through hole for passing the drop section through is formed in the center of an outer holding plate; a seal provided at a connection between the discharge frame, the large diameter end of which is movably connected to the second side plate, and the second side plate; a mixed airflow outlet connected to the small diameter end of the outlet frame; a support bracket connected to the mixed air flow outlet and movably mounted on the mounting base; Including, The crushing roller body has a disk-like structure, and the outer edge cross section of the disk-like structure is V-shaped or U-shaped, and the outer edge cross section of the disk-like structure fits into the V-shaped cross section groove or U-shaped cross section groove on the inner surface of the crushing ring. A rotary impact roller crusher characterized by:

2. a blade provided in the grinding chamber, attached to a side of the inner retaining plate and disposed on the inner drive shaft; 2. The rotary impact roller crusher according to claim 1, further comprising:

3. a blade mount including a blade mount body and an intake passage provided in the blade mount body; an air flow passage formed within the inner drive shaft and communicating with the intake passage; 3. The rotary impact roller crusher according to claim 2, further comprising:

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