Ball mill capable of screening small solid dry materials

Abstract

The invention relates to the field of particle processing, and provides a ball mill capable of screening small solid dry materials, which comprises a bottom frame, and further comprises two transverse rods, a plurality of vertical rods and a plurality of vertical rods, the rolling wheels are rotationally mounted on the front and rear sides of the transverse rod respectively; the shell cylinder is erected between the transverse rods on the two sides, and the outer circumferential surface of the shell cylinder is in rolling fit with the rolling wheels; the driving assembly is mounted on one side of the bottom frame and used for driving the shell cylinder to roll; the built-in cylinder is arranged in the middle of the shell cylinder, and the built-in cylinder and the shell cylinder are coaxially arranged; spacing columns are installed on the inner walls of the middles of the left side and the right side of the shell cylinder. When the device is used, the built-in cylinder is driven to incline forwards and backwards through the inclined assembly, automatic discharging and screening are achieved through forward inclination, soft and hard grinding balls are switched through backward inclination, modes can be switched without manual intervention, the process efficiency and convenience are improved, soft and hard differentiated grinding of small solid drying materials is achieved, and the characteristics are kept.

Description

Technical Field

[0001] This invention relates to the field of particle processing, and more specifically, to a ball mill capable of sieving small solid dry materials. Background Technology

[0002] A ball mill is a mechanical device that uses the impact and friction of grinding media (such as steel balls, ceramic balls, etc.) inside a rotating cylinder to crush, mix, or disperse materials. Due to its high efficiency, it is widely used in industrial fields such as mining and mineral processing, chemical raw material preparation, building material production, and pharmaceutical research and development.

[0003] When grinding small solid dry materials, traditional ball mills use a single type of grinding media because of the difference between hard and soft materials. Although this method is more effective for grinding hard materials, it can easily lead to the over-pulverization of soft materials, which can damage their crystal structure or molecular morphology and significantly reduce their functional properties. Existing equipment lacks the ability to automatically switch grinding modes based on material characteristics, which affects processing accuracy and process adaptability.

[0004] Therefore, this application proposes a ball mill capable of sieving small solid dry materials to solve the above problems. Summary of the Invention

[0005] Technical problem to be solved: In view of the problems existing in the prior art, the purpose of this invention is to provide a ball mill that can screen small solid dry materials, which solves the problems of excessive crushing of soft materials, destruction of crystal structure or molecular morphology caused by the use of a single specification of grinding media in traditional equipment, and the lack of automatic adjustment of grinding mode according to material characteristics, which affects processing accuracy and process adaptability.

[0006] To solve the above technical problems, the present invention provides the following technical solution: a ball mill capable of screening small solid dry materials, comprising a base frame, and further comprising: two transverse rods, installed parallel and spaced on the left and right sides of the top of the base frame; rolling wheels, respectively rotatably installed on the front and rear sides of the transverse rods; an outer shell cylinder, mounted between the two transverse rods, with the outer circumferential surface of the outer shell cylinder forming a rolling engagement with the rolling wheels; a drive assembly, installed on one side of the base frame, for driving the outer shell cylinder to roll; an inner cylinder, located in the middle of the outer shell cylinder, and coaxially arranged with the outer shell cylinder; spacing columns are installed on the inner walls of the middle of the left and right sides of the outer shell cylinder, and a fitting plate is rotatably installed at the inward end of each spacing column, with two fitting plates respectively installed on the outer walls of the middle of the left and right sides of the inner cylinder; four sets of tilting assemblies, respectively installed on the front and rear sides of the inner walls of the top and bottom of the outer shell cylinder, for adjusting the tilt of the inner cylinder; a switching assembly is installed at the rear of the inner cylinder, and a screening assembly is installed at the front of the inner cylinder, the switching assembly and the screening assembly being triggered by different tilt states of the inner cylinder.

[0007] In a new embodiment, limiting rings are coaxially fixedly sleeved on the front and rear outer walls of the outer shell cylinder, and the inner end faces of the two limiting rings respectively abut against the outer end faces of the corresponding side rolling wheels in an axial direction, thereby constraining the front-rear displacement of the outer shell cylinder.

[0008] In a new embodiment, the drive assembly includes: a vertical column installed on the right middle part of the base frame; a hinge plate rotatably installed on the top of the vertical column; a dual-head motor installed on the top of the hinge plate; and contact rollers are fixedly installed at both output ends of the dual-head motor, with the contact rollers forming a rolling engagement with the outer circumferential surface of the outer casing.

[0009] In a new embodiment, the tilting assembly includes: four hydraulic rods, which are respectively installed on the front and rear sides of the inner wall of the top end of the outer casing; an arc-shaped support plate, the outer arc surface of which is detachably connected to the end of the hydraulic rod through a flange, and a polyurethane buffer layer is fixedly provided on the inner arc surface, the curvature of which matches the outer wall of the inner casing and forms an elastic abutment.

[0010] In a new embodiment, the switching component includes: a rear end cover, coaxially fixed to the rear end of the inner cylinder, with ball outlets and ball inlets symmetrically opened on the upper and lower parts of its end face, the axes of the ball outlets and ball inlets being coplanar with the axis of the inner cylinder; a servo motor, fixed to the center of the back side of the rear end cover, with an external circular plate fixedly installed at the output end of the servo motor, the external circular plate being rotatably installed at the rear of the rear end cover; and ball chambers, equidistantly annularly installed on the front outer side of the external circular plate, with ball docking ports opened on the lower front side of each ball chamber, and a cover plate installed on the same side of each ball chamber.

[0011] In a new embodiment, the screen assembly includes: a front plate, installed at the front of the inner cylinder, with the lower rear side of the front plate connected to the inner cylinder; a stepper motor, installed at the center of the front end of the front plate; a coaxial rod, fixedly connected to the output end of the stepper motor, with multiple curved material feeding plates welded equidistantly around its outer edge; two screen openings, symmetrically arranged on the left and right outer sides of the front plate; and two side material chambers, respectively installed on the left and right outer sides of the front plate. Vibrating plates are equidistantly arranged on the inner walls of the outer sides of the two side material chambers, with the working surface of the vibrating plates corresponding to the mesh plane of the screen openings. A discharge valve pipe extending to the outside of the outer cylinder is also installed at the bottom of the side material chamber.

[0012] In a new embodiment, a feed inlet is installed on the top inner wall of the outer casing, and the bottom of the feed inlet is connected to the top of the inner casing via a telescopic flexible hose.

[0013] In a new embodiment, a controller is installed in the middle of the bottom wall of the inner tube, and vibrators are installed on both the front and rear sides of the middle of the bottom wall of the inner tube, with the controller and vibrators electrically connected.

[0014] Beneficial effects: Compared with the prior art, the advantages of the present invention are: 1. The built-in cylinder is flexibly tilted back and forth by the tilting component. When tilting forward, the material is automatically discharged and screened under the action of gravity. When tilting backward, the grinding balls roll down to the switching component for collection and subsequent switching of soft and hard grinding balls. The grinding mode can be switched without manual intervention, which improves the continuity of the process and the convenience of operation. It can better process hard and soft materials of small solid drying materials with different grinding modes and maintain the characteristics of the materials.

[0015] 2. By coordinating the diagonal movements of the hydraulic rods of the tilting component, precise angle control of the built-in cylinder's forward / backward tilt is achieved. The polyurethane buffer layer of the arc-shaped support plate is tightly attached to the cylinder wall, and the gap is eliminated through elastic contact during the tilting process. This ensures both the freedom of rotation of the built-in cylinder and prevents swaying during tilting, thus ensuring the stability of the grinding balls rolling down and the material being discharged.

[0016] 3. By switching components, the servo motor drives the external circular plate to rotate, precisely connecting to different ball chambers to achieve the directional collection and release of hard steel balls and soft ceramic balls. When the internal cylinder is tilted, gravity drives the grinding balls to roll down automatically. Combined with the intelligent control of the electric valve port, the two types of grinding balls are prevented from mixing, and the grinding media can be changed quickly to meet the processing needs of soft and hard materials.

[0017] 4. The curved material feeding plate in the sieving assembly agitates the material through screen openings of different apertures, achieving coarse and fine particle classification and sieving. The vibrating plate cooperates with the screen openings to peel off agglomerated materials through high-frequency vibration, preventing screen blockage and ensuring uniform particle size of the output. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective.

[0020] Figure 3 This is a schematic diagram of the drive component structure of the present invention.

[0021] Figure 4 This is a schematic diagram of the internal structure of the outer shell of the present invention.

[0022] Figure 5 This is a schematic diagram of the tilting component structure of the present invention.

[0023] Figure 6 This is a schematic diagram of the rear cover structure of the present invention.

[0024] Figure 7 This is a schematic diagram of the external circular plate structure of the present invention.

[0025] Figure 8 This is a schematic diagram of the vibrator's position and structure according to the present invention.

[0026] Figure 9 This is a schematic diagram of the external structure of the front disk of the present invention.

[0027] Figure 10 This is a schematic diagram of the internal structure of the front disk of the present invention.

[0028] Figure 11 This is a schematic diagram of the built-in cylinder in a forward tilted state according to the present invention.

[0029] Figure 12 This is a schematic diagram of the built-in cylinder in the backward tilted state of the present invention.

[0030] The attached diagram is labeled as follows: 1. Base frame; 2. Horizontal rod; 3. Roller; 4. Outer shell; 41. Limiting ring; 5. Drive assembly; 501. Vertical column; 502. Hinge plate; 503. Dual-head motor; 504. Contact roller; 6. Internal cylinder; 7. Spacing column; 8. Assembly plate; 9. Tilt assembly; 901. Hydraulic rod; 902. Arc-shaped support plate; 903. Polyurethane buffer layer; 10. Switching assembly; 1001. Rear end cover; 1002. Ball outlet; 1003. 1004. Ball inlet; 1005. Servo motor; 1006. External circular plate; 1007. Ball chamber; 1008. Docking ball inlet; 1009. Cover plate; 11. Screening assembly; 1101. Front plate; 1102. Stepper motor; 1103. Coaxial rod; 1104. Curved material feeding plate; 1105. Screen opening; 1106. Side material chamber; 1107. Vibrating plate; 1108. Discharge valve pipe; 12. Feed inlet; 13. Telescopic hose; 14. Controller; 15. Vibrator. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] This application provides a ball mill capable of sieving small solid dry materials, solving the problems of traditional equipment that use a single type of grinding media, resulting in excessive crushing of soft materials, destruction of crystal structure or molecular morphology, and lack of automatic adjustment of grinding mode according to material characteristics, thus affecting processing accuracy and process adaptability. In use, the present invention drives the built-in cylinder to tilt back and forth through the tilting component. The forward tilting automatically discharges and sieves the material, while the backward tilting switches between soft and hard grinding balls. The mode can be switched without manual intervention, improving process efficiency and convenience, and realizing differentiated grinding of small solid dry materials with varying softness and hardness while maintaining their characteristics.

[0033] The technical solutions in this application are intended to solve the above-mentioned technical problems, and the overall approach is as follows.

[0034] Example 1, please refer to Figures 1-12 A ball mill for sieving small solid dry materials includes a base frame 1, and further includes: two transverse rods 2, which are installed parallel to each other on the left and right sides of the top of the base frame 1; rolling wheels 3, which are rotatably installed on the front and rear sides of the transverse rods 2 respectively; an outer shell cylinder 4, which is mounted between the two transverse rods 2, and the outer circumferential surface of the outer shell cylinder 4 forms a rolling engagement with the rolling wheels 3; a drive assembly 5, which is installed on one side of the base frame 1 for driving the outer shell cylinder 4 to roll; and an inner cylinder 6, which is located in the middle of the outer shell cylinder 4 and is coaxial with the outer shell cylinder 4. The outer casing 4 has spacing columns 7 installed on the inner walls of the middle section on both the left and right sides. Each spacing column 7 has a mounting plate 8 rotatably installed at one end inward. The two mounting plates 8 are installed on the outer walls of the middle section on the left and right sides of the inner casing 6, respectively. There are four sets of tilting components 9, which are installed on the front and rear sides of the inner walls of the top and bottom of the outer casing 4, respectively, for adjusting the tilt of the inner casing 6. A switching component 10 is installed at the rear of the inner casing 6, and a screening component 11 is installed at the front of the inner casing 6. The switching component 10 and the screening component 11 are triggered by different tilt states of the inner casing 6.

[0035] In this embodiment, please refer to Figures 1-12 As shown, by setting up an outer shell cylinder 4, an inner cylinder 6, a spacing column 7, and a mounting plate 8, a core equipment architecture is constructed in which the outer shell cylinder 4 rotates to drive the ball milling of the material inside the outer shell cylinder 4, and the outer shell cylinder 4 realizes the replacement of grinding balls and the discharge screening to remove agglomerates. The outer shell cylinder 4 is mounted between two horizontal rods 2 by a rolling wheel 3, and with the help of the drive component 5, the outer shell cylinder 4 can be rotated, thereby performing ball milling on the small solid dry material fed into the inner cylinder 6; and the mounting of the mounting plate 8 and the spacing column 7 on the left and right sides of the inner cylinder 6 provides the premise adjustment and basic structure for the tilting of the inner cylinder 6.

[0036] When processing soft materials (such as pharmaceutical starch or food additive granules) in small-scale solid drying materials, the grinding balls need to be replaced from hard steel balls to soft ceramic balls. The specific operation procedure is as follows: Power off drive assembly 5; the electromagnetic brake (not shown in the figure) locks the contact roller 504 to prevent accidental rotation of the outer casing 4; then, use tilting assembly 9 to adjust the tilt of the inner casing 6 (towards a backward tilt, such as...). Figure 12As shown), after adjustment, the grinding balls at the bottom of the inner cylinder 6 begin to roll down to the rear of the inner cylinder 6 due to the tilt angle, and enter the ball chamber 1006 below the rear end cover 1001 of the switching component 10 through the ball inlet 1003, which is aligned with it and has a docking ball inlet 1007. As the grinding balls in the inner cylinder 6 continue to enter, the servo motor 1004 drives the outer circular plate 1005 to rotate, switching between different ball chambers 1006 for receiving, thereby realizing the collection of hard steel balls in the inner cylinder 6. (It should be noted that, taking the annular ball chamber 1006 as an example, the left...) The ball chamber 1006 on the side is for storing soft ceramic balls, while the one on the right is for storing hard steel balls. When it is necessary to release the soft ceramic balls, the outer circular plate 1005 is rotated in the reverse direction, and the upper ball outlet 1002 is aligned with the docking ball outlet 1007 of the ball chamber 1006 that has been rotated to that position. The soft ceramic balls are then released through the ball outlet 1002 and fall into the inner cylinder 6. It should be noted that the ball inlet 1003 and the ball outlet 1002 are electric valves that can be intelligently controlled. Furthermore, the falling of the soft ceramic balls and the subsequent conversion to hard steel balls will not damage the inner wall of the inner cylinder 6, and their falling height is not high.

[0037] Further, please refer to Figures 1-3 Limiting rings 41 are coaxially fixedly sleeved on the front and rear outer walls of the outer shell cylinder 4. The inner end faces of the two limiting rings 41 respectively abut against the outer end faces of the corresponding rolling wheels 3 in the axial direction, forming a mechanical constraint on the front and rear displacement of the outer shell cylinder 4. By setting the limiting rings 41, the limiting rings 41 directly abut against the outer end faces of the rolling wheels 3, forming a rigid axial constraint, forcing the outer shell cylinder 4 to maintain a fixed axial position during rotation, avoiding the front and rear movement caused by uneven driving force, unbalanced material distribution or vibration.

[0038] Further, please refer to Figure 3 The drive assembly 5 includes: a vertical column 501, installed on the right side of the base frame 1; a hinge plate 502, rotatably installed on the top of the vertical column 501; and a dual-head motor 503, installed on the top of the hinge plate 502. Contact rollers 504 are fixedly installed at both output ends of the dual-head motor 503. The contact rollers 504 form a rolling fit with the outer circumferential surface of the outer shell cylinder 4. By setting up the vertical column 501, hinge plate 502, dual-head motor 503, and contact rollers 504, the dual-head motor 503 drives the contact rollers 504 to contact the outer wall of the outer shell cylinder 4, thereby causing the outer shell cylinder 4 to rotate. After rotating the hinge plate 502, the dual-head motor 503 stands upright, allowing for better manual control of the ball milling start and stop of the outer shell cylinder 4. This method is more effective and requires less space for ball milling solid dry materials in small-scale experiments.

[0039] Example 2, please refer to Figures 4-5The tilting component 9 includes: four hydraulic rods 901, which are respectively installed on the front and rear sides of the inner wall of the top end of the outer casing 4; an arc-shaped support plate 902, whose outer arc surface is detachably connected to the end of the hydraulic rod 901 through a flange, and whose inner arc surface is fixedly provided with a polyurethane buffer layer 903, the curvature of which matches the outer wall of the inner casing 6 and forms an elastic abutment.

[0040] By setting up hydraulic rods 901, arc-shaped support plates 902, and polyurethane buffer layers 903, and using the hydraulic rods 901 in four directions, with the diagonally opposite hydraulic rods 901 executing the same extension or retraction command, the forward and backward tilting operations of the inner cylinder 6 can be realized. Furthermore, by utilizing the clamping action of the arc-shaped support plates 902 and the elastic compensation of the polyurethane buffer layers 903 to compensate for the tilting angle and create a clamping gap in the arc-shaped support plates 902, the stability of the inner cylinder 6 can still be maintained during the tilting process.

[0041] Further, please refer to Figure 8 A controller 14 is installed in the middle of the bottom wall of the inner cylinder 6, and vibrators 15 are installed on both the front and rear sides of the middle of the bottom wall of the inner cylinder 6. The controller 14 and the vibrator 15 are electrically connected. By setting the controller 14 and the vibrator 15, the vibrator 15 vibrates by installing the controller 14 and the vibrator 15 on the bottom wall of the inner cylinder 6. On the one hand, it breaks the static accumulation of grinding balls (such as bottom accumulation) and makes them roll and jump in the cylinder, which facilitates the replacement of grinding balls. On the other hand, the vibration assists the discharge of materials, avoids bottom accumulation, and makes the feeding effect of the screen assembly 11 more obvious.

[0042] Further, please refer to Figures 4-5 The inner wall of the outer shell cylinder 4 is equipped with a feed inlet 12. The bottom of the feed inlet 12 is connected to the top of the inner cylinder 6 through a telescopic hose 13. By setting the feed inlet 12 and the telescopic hose 13, the feed inlet 12 is located at the center of the top of the outer shell cylinder 4. The material falls vertically into the middle of the inner cylinder 6 through the telescopic hose 13. Whether the inner cylinder 6 is tilted forward to feed or tilted backward to replace the grinding balls, the connection between the feed inlet 12 and the inner cylinder 6 is always maintained, ensuring that the feeding system does not interfere with each other in both modes.

[0043] Example 3, please refer to Figures 6-7The switching component 10 includes: a rear end cover 1001, coaxially fixed to the rear end of the inner cylinder 6, with ball outlet 1002 and ball inlet 1003 symmetrically opened on the upper and lower parts of its end face, the axes of ball outlet 1002 and ball inlet 1003 being coplanar with the axis of the inner cylinder 6; a servo motor 1004, fixed to the center of the back side of the rear end cover 1001, with an external circular plate 1005 fixedly installed at the output end of the servo motor 1004, the external circular plate 1005 being rotatably installed at the rear of the rear end cover 1001; and a ball chamber 1006, equidistantly annularly installed on the front outer side of the external circular plate 1005, with ball docking ports 1007 opened on the lower front side of the ball chamber 1006, and a cover plate 1008 installed on the same side of the ball chamber 1006.

[0044] By setting up a rear cover 1001, a ball outlet 1002 and a ball inlet 1003, a servo motor 1004, an external circular plate 1005, a ball chamber 1006, a ball docking port 1007, and a cover plate 1008, the servo motor 1004 drives the external circular plate 1005 to rotate, which in turn drives the ball chamber 1006 to rotate. On the one hand, it collects the falling grinding balls collected by the ball inlet 1003, and on the other hand, it releases the grinding balls through the ball outlet 1002. This allows for different treatments of soft and hard materials in solid dry materials, quick switching of grinding modes, no need for manual replacement, and improved grinding efficiency. The cover plate 1008 is used to ensure that the ball inlet 1003 is blocked during the switching of the ball chamber 1006, preventing the grinding balls inside the inner cylinder 6 from falling out.

[0045] Please see Figures 9-10 The screen assembly 11 includes: a front plate 1101, installed at the front of the inner cylinder 6, with the lower rear side of the front plate 1101 connected to the inner cylinder 6; a stepper motor 1102, installed at the center of the front end of the front plate 1101; a coaxial rod 1103, fixedly connected to the output end of the stepper motor 1102, with multiple curved material feeding plates 1104 welded equidistantly around its outer edge; two screen openings 1105, symmetrically arranged on the left and right outer sides of the front plate 1101; and two side material chambers 1106, respectively installed on the left and right outer sides of the front plate 1101. Vibrating plates 1107 are equidistantly arranged on the inner outer walls of the two side material chambers 1106, with the working surface of the vibrating plate 1107 corresponding to the mesh plane of the screen opening 1105. A discharge valve pipe 1108 extending to the outside of the outer cylinder 4 is also installed at the bottom of the side material chamber 1106.

[0046] By configuring a front plate 1101, a stepper motor 1102, a coaxial rod 1103, a curved material feeding plate 1104, a screen opening 1105, a side material chamber 1106, a vibrating plate 1107, and a discharge valve pipe 1108, the stepper motor 1102 drives the coaxial rod 1103 and the curved material feeding plate 1104 connected to it to rotate within the front plate 1101. This, in turn, carries the material that has been ball-milled at the bottom of the front plate 1101 upwards and outwards. With the rapid agitation of the curved material feeding plate 1104, the material is continuously discharged through the screen openings 1105 on both sides (it should be noted that due to the difference in screen aperture...). The system uses a 500μm coarse sieve on the left and a 100μm fine sieve on the right to achieve graded screening. Larger particles pass through the coarse sieve and enter the corresponding side material chamber 1106, while finer particles pass through the fine sieve and fall into the collection area on the other side. The discharged material enters the side material chamber 1106 and comes into contact with the vibrating plate 1107 before entering the side material chamber 1106. The elastic deformation of the vibrating plate 1107 generates a peeling force on the agglomerated particles. This is especially effective for materials with electrostatic adsorption or sticky agglomeration (such as resin powder and traditional Chinese medicine extract granules), which can break up the agglomerates and provide high-quality raw materials with uniform particle size for subsequent processes.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A ball mill for sieving small solid dry materials, comprising a chassis (1), characterized in that, Also include: Cross rod (2), provided with two, parallel spacing is installed on the top of the chassis (1) left and right sides; Rolling wheel (3), respectively rotatingly installed on the front and rear sides of the cross rod (2); Shell cylinder (4), erected between the two lateral cross rods (2), and the outer circumferential surface of the shell cylinder (4) forms a rolling fit with the rolling wheel (3); Drive assembly (5), installed on one side of the chassis (1), for driving the shell cylinder (4) to roll; Built-in cylinder (6), provided in the middle of the shell cylinder (4), and the built-in cylinder (6) is coaxially arranged with the shell cylinder (4); The left and right sides of the middle wall of the shell cylinder (4) are provided with spacing columns (7), and the inner ends of the spacing columns (7) are rotatably provided with matching discs (8), and the two matching discs (8) are respectively installed on the left and right sides of the middle outer wall of the built-in cylinder (6); Inclination assembly (9), provided with four groups, respectively installed on the front and rear sides of the top and bottom inner walls of the shell cylinder (4), for adjusting the inclination of the built-in cylinder (6); The rear part of the built-in cylinder (6) is provided with a switching assembly (10), and the front part of the built-in cylinder (6) is provided with an out-screen assembly (11), and the switching assembly (10) and the out-screen assembly (11) are triggered by different inclination states of the built-in cylinder (6).

2. A sievable small-sized solid dry material ball mill according to claim 1, wherein The front and rear outer walls of the shell cylinder (4) are coaxially fixedly provided with limit rings (41), and the inner side end faces of the two limit rings (41) are respectively axially abutted with the outer side end faces of the corresponding side rolling wheels (3), thereby forming a mechanical constraint on the forward and backward displacement of the shell cylinder (4).

3. A sievable small-sized solid dry material ball mill according to claim 1, wherein The drive assembly (5) comprises: Vertical column (501), installed on the right side of the chassis (1); Hinge plate (502), rotatably installed on the top of the vertical column (501); Double-head motor (503), installed on the top of the hinge plate (502); The two end output ends of the double-head motor (503) are fixedly provided with contact rollers (504), and the contact rollers (504) form a rolling fit with the outer circumferential surface of the shell cylinder (4).

4. A sievable small-sized solid dry material ball mill according to claim 1, wherein The inclination assembly (9) comprises: Hydraulic rod (901), provided with four, respectively installed on the front and rear sides of the top wall end inner wall of the shell cylinder (4); Arc-shaped supporting plate (902), the outer arc surface of which is detachably connected with the rod body end of the hydraulic rod (901) through a flange, and the inner arc surface is fixedly provided with a polyurethane buffer layer (903), and the curvature of the polyurethane buffer layer (903) matches the outer wall of the built-in cylinder (6) and forms an elastic abutment.

5. The sievable small solid dry material mill according to claim 1, wherein The switching assembly (10) comprises: Rear end cover (1001), coaxially fixed to the rear end of the built-in cylinder (6), and the upper and lower parts of the end face are symmetrically provided with ball outlet (1002) and ball inlet (1003), and the axes of the ball outlet (1002) and the ball inlet (1003) are coplanar with the axis of the built-in cylinder (6); Servo motor (1004), fixed to the back side center of the rear end cover (1001), and the output end of the servo motor (1004) is fixedly provided with an external circular plate (1005), and the external circular plate (1005) is rotatably installed on the rear part of the rear end cover (1001); A ball bin (1006) is mounted equidistantly and annularly on the front outer side of the outer circular plate (1005), the front lower side of the ball bin (1006) is provided with a butt joint ball mouth (1007), and the same side of the ball bin (1006) is provided with a cover plate (1008).

6. A sievable small-sized solid dry material ball mill according to claim 1, wherein The out-screen assembly (11) comprises: A front disc (1101) is mounted on the front of the inner cylinder (6), and the rear lower side of the front disc (1101) is communicated with the inner cylinder (6); A stepping motor (1102) is mounted on the front end center of the front disc (1101); A coaxial rod (1103) is fixedly connected with the output end of the stepping motor (1102), and a plurality of curved material pushing plates (1104) are welded equidistantly on the outer edge of the coaxial rod (1103); Two screen mesh mouths (1105) are symmetrically arranged on the left and right outer sides of the front disc (1101); Two side material cavities (1106) are arranged on the left and right outer sides of the front disc (1101), and a vibration piece (1107) is arranged equidistantly on the outer side inner wall of each side material cavity (1106), the working surface of the vibration piece (1107) corresponds to the mesh hole plane of the screen mesh mouth (1105), and a material discharge valve pipe (1108) extending to the outside of the shell cylinder (4) is further arranged at the bottom end of the side material cavity (1106).

7. A sievable small-sized solid dry material ball mill according to claim 1, wherein The top inner wall of the shell cylinder (4) is provided with a feeding port (12), and the bottom of the feeding port (12) is communicated with the top of the inner cylinder (6) through an elastic hose (13).

8. A sievable small-sized solid dry material ball mill according to claim 1, wherein The bottom wall of the inner cylinder (6) is provided with a controller (14) in the middle, and the bottom wall of the inner cylinder (6) is provided with a vibrator (15) on the front and rear sides of the middle, and the controller (14) is electrically connected with the vibrator (15).

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