Ball-milling crushing granulation catalyst preparation system

Abstract

The invention relates to the technical field of catalyst preparation, and discloses a ball-milling crushing granulation catalyst preparation system, which comprises a base, the upper surface of the base is fixedly connected with a cross ring and two support rings, and the two support rings are symmetrically distributed by taking the cross ring as the center; the bin body comprises a coarse grinding part and a fine grinding part, the coarse grinding part and the fine grinding part are rotationally connected to the upper surface of the base through supporting rings, an inner ring is fixedly connected to the inner surface of a cross-shaped ring, and a feeding part, a discharging part and an air inlet part are fixedly connected to the upper surface of the base; the side, close to the rough grinding part, of the inner ring is rotationally connected with a bin partition plate. The ball-milling crushing granulation catalyst preparation system can effectively solve the problems that in the prior art, the mechanical strength of large catalyst raw materials is high, so that the crushing difficulty of the large catalyst raw materials is increased, the crushing time of the monolithic catalyst raw materials is prolonged, and the crushing efficiency of the monolithic catalyst raw materials is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of catalyst preparation, and particularly relates to a ball milling, crushing and granulating catalyst preparation system. Background Art

[0002] A catalyst is a substance that can change the reaction rate of a chemical reaction during the chemical reaction, while its own amount and chemical properties remain unchanged. During the preparation of the catalyst, a ball milling device is usually used to crush the catalyst raw materials, so as to break the large catalyst raw materials into smaller and more uniform particles. The catalyst particles after crushing and granulation have a larger specific surface area, thereby improving the catalytic efficiency of the catalyst.

[0003] Currently, during the ball milling and crushing of catalyst raw materials, some of the catalyst raw materials have a large volume, and the mechanical strength of the large catalyst raw materials is relatively high, which increases the difficulty of crushing the large catalyst raw materials, thereby increasing the overall crushing time of the catalyst raw materials and resulting in a decrease in the overall crushing efficiency of the catalyst raw materials. Summary of the Invention

[0004] Technical Problem to be Solved

[0005] In view of the above-mentioned drawbacks of the prior art, the present invention provides a ball milling, crushing and granulating catalyst preparation system, which can effectively solve the problem that the mechanical strength of large catalyst raw materials in the prior art is relatively high, thereby increasing the difficulty of crushing the large catalyst raw materials, further increasing the overall crushing time of the catalyst raw materials, and resulting in a decrease in the overall crushing efficiency of the catalyst raw materials.

[0006] Technical Solution

[0007] To achieve the above object, the present invention is realized through the following technical solutions:

[0008] The present invention provides a ball milling, crushing and granulating catalyst preparation system, including:

[0009] A base, on the upper surface of which a cross ring and a support ring are fixedly connected, and there are two support rings symmetrically distributed with the cross ring as the center;

[0010] A bin body, which includes a coarse grinding part and a fine grinding part. Both the coarse grinding part and the fine grinding part are rotatably connected to the upper surface of the base through the support rings. An inner ring is fixedly connected to the inner surface of the cross ring, and a feeding part, a discharging part and an air inlet part are fixedly connected to the upper surface of the base;

[0011] Wherein, a partition plate is rotatably connected to one side of the inner ring close to the coarse grinding part, an extrusion bar is slidably arranged along the axial direction of the inner ring on the inner surface of the inner ring, a large gear ring is rotatably connected to one side of the inner ring close to the fine grinding part, and a small gear ring is rotatably connected to the inner surface of the cross ring. The large gear ring is meshed with the small gear ring;

[0012] During the process of the large gear ring rotating around the axis of the inner ring, first, the extrusion bar slides axially along the inner ring and separates from the partition plate. Then, the partition plate rotates by a certain angle to align the holes in the partition plate with the extrusion bar. Finally, the extrusion bar squeezes into the holes in the partition plate through the extrusion bumps provided on its outer side.

[0013] Further, it is characterized in that: the coarse grinding part includes a first cylinder body, the first cylinder body is rotatably connected to the circumferential inner surface of the support ring, the fine grinding part includes a second cylinder body, the second cylinder body is rotatably connected to the circumferential inner surface of another support ring, a coarse grinding bin is fixedly connected to the circumferential inner surface of the first cylinder body, a fine grinding bin is fixedly connected to the circumferential inner surface of the second cylinder body, one end of the coarse grinding bin close to the fine grinding bin is rotatably connected to the partition plate, and one end of the fine grinding bin close to the coarse grinding bin is fixedly connected to the large gear ring.

[0014] Further, it is characterized in that: an extrusion bump is fixedly connected to one side of the extrusion bar close to the partition plate, an L-shaped rod is fixedly connected to the side of the extrusion bar far from the partition plate, a clamping block is fixedly connected to the circumferential inner surface of the inner ring, and the extrusion bar is slidably connected to the inner ring through the clamping block.

[0015] Further, it is characterized in that: a telescopic cylinder is fixedly connected to the outer surface of the clamping block, a telescopic groove is formed on the side of the extrusion bar far from the partition plate, and a telescopic spring is fixedly connected between the telescopic groove and the telescopic cylinder.

[0016] Further, it is characterized in that: a spiral chute and a flat chute are formed on the circumferential inner surface of the large gear ring, the spiral chute and the flat chute are connected end to end, a pulley is rotatably connected to one end of the L-shaped rod, and the L-shaped rod is slidably connected to the spiral chute through the pulley.

[0017] Further, it is characterized in that: one end of the small gear ring penetrates through the side wall of the cross ring and is fixedly connected to a rotating plate, an arc-shaped bump is fixedly connected to the side of the rotating plate far from the cross ring, a pushing column is rotatably connected to the side of the rotating plate far from the cross ring, a pushing plate is fixedly connected to the circumferential outer surface of the partition plate, and arc-shaped grooves and straight grooves are arranged in a circumferential array on the circumferential outer surface of the pushing plate.

[0018] Further, it is characterized in that: the feeding part includes a first bearing seat, the discharging part includes a second bearing seat, the first bearing seat and the second bearing seat are fixedly connected to the upper surface of the base, a feeding pipe is rotatably connected to the inside of the first bearing seat, a discharging pipe is rotatably connected to the inside of the second bearing seat, and a discharging grate is fixedly connected to one end of the discharging pipe close to the fine grinding part.

[0019] Further, it is characterized in that: the air inlet part includes a blower, the blower is fixedly connected to the upper surface of the base, one side of the first cylinder away from the second cylinder is fixedly communicated with a blowing pipe, one end of the blowing pipe away from the first cylinder is fixedly communicated with a blowing ring, and the air outlet pipe of the blower is communicated with the blowing ring.

[0020] Further, it is characterized in that: it further includes a transmission part, the transmission part includes a transmission motor, the transmission motor is fixedly connected to the upper surface of the base, a runner is fixedly connected to the output end of the transmission motor, there are two runners, and the two runners drive the first cylinder and the second cylinder to rotate around the axis of the support ring through a transmission belt arranged on the outer circumferential surface of the runners.

[0021] Beneficial effects

[0022] The technical solution provided by the present invention has the following beneficial effects compared with the prior art:

[0023] The present invention is provided with a rough grinding part and a fine grinding part. First, the catalyst raw materials with larger volume are preliminarily broken into catalyst raw materials with smaller volume through the rough grinding bin, and then the catalyst raw materials with smaller volume are secondarily broken into granular catalyst raw materials through the fine grinding bin, thereby reducing the mechanical strength and crushing difficulty of the large catalyst raw materials, and then shortening the crushing time of the overall catalyst raw materials and improving the crushing efficiency of the overall catalyst raw materials.

[0024] While the fine grinding bin rotates, the fine grinding bin drives the large gear ring to rotate synchronously. The large gear ring controls the partition plate to perform an intermittent rotational motion around the axis of the inner ring, and controls the extrusion strip to perform a reciprocating motion along the axial direction of the inner ring, so that the extrusion strip dredges each group of holes on the partition plate in turn, preventing the catalyst raw materials from blocking the holes of the partition plate, thereby improving the passing efficiency of the small catalyst raw materials on the partition plate. Brief description of the drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present invention;

[0027] Figure 2 It is a schematic diagram of the structure of the transmission part of the embodiment of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the air inlet part of the embodiment of the present invention;

[0029] Figure 4 Schematic structural diagram of the feed pipe in the embodiment of the present invention;

[0030] Figure 5 Schematic structural diagram of the partition plate in the embodiment of the present invention;

[0031] Figure 6 Explosion schematic diagram of the partition plate in the embodiment of the present invention;

[0032] Figure 7 Schematic structural diagram of the large gear ring in the embodiment of the present invention;

[0033] Figure 8 Schematic structural diagram of the spiral chute in the embodiment of the present invention;

[0034] Figure 9 is Figure 8 Enlarged structural schematic diagram at A in

[0035] Figure 10 Schematic structural diagram of the flat groove in the embodiment of the present invention.

[0036] The reference numerals in the figure respectively represent:

[0037] 1, base; 11, cross ring; 12, support ring;

[0038] 2, bin body;

[0039] 21, rough grinding part; 211, first cylinder; 212, rough grinding bin;

[0040] 22, fine grinding part; 221, second cylinder; 222, fine grinding bin;

[0041] 23, inner ring; 231, partition plate;

[0042] 232, extrusion bar; 2321, extrusion bump; 2322, L bar; 2323, clamping block; 23231, telescopic cylinder; 23232, telescopic groove; 23233, telescopic spring;

[0043] 233, large gear ring; 2331, spiral chute; 2332, flat groove; 2333, pulley;

[0044] 234, small gear ring; 2341, rotating plate; 2342, arc-shaped bump; 2343, push column; 2344, push plate;

[0045] 24, feeding part; 241, first bearing seat; 242, feed pipe;

[0046] 25, discharging part; 251, second bearing seat; 252, discharge pipe; 253, discharge grate plate;

[0047] 26. Intake section; 261. Blower; 262. Blowing ring; 263. Blowing duct;

[0048] 3. Transmission section; 31. Transmission motor; 32. Runner; 33. Transmission belt. Specific implementation mode

[0049] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0050] The present invention will be further described below with reference to the embodiments.

[0051] Embodiment:

[0052] Please refer to Figures 1 - 10 , the present invention provides a technical solution: a ball milling, crushing and granulating catalyst preparation system, comprising:

[0053] Base 1, on the upper surface of which a cross ring 11 and a support ring 12 are fixedly connected, and there are two support rings 12 symmetrically distributed with the cross ring 11 as the center;

[0054] Bin body 2, the bin body 2 includes a coarse grinding part 21 and a fine grinding part 22, both the coarse grinding part 21 and the fine grinding part 22 are rotatably connected to the upper surface of the base 1 through the support ring 12, an inner ring 23 is fixedly connected to the inner surface of the cross ring 11, and a feeding part 24, a discharging part 25 and an intake part 26 are fixedly connected to the upper surface of the base 1;

[0055] Wherein, a partition plate 231 is rotatably connected to one side of the inner ring 23 close to the coarse grinding part 21, an extrusion bar 232 is slidably arranged along the axial direction of the inner ring 23 on the inner surface of the inner ring 23, a large gear ring 233 is rotatably connected to one side of the inner ring 23 close to the fine grinding part 22, and a small gear ring 234 is rotatably connected to the inner surface of the cross ring 11, and the large gear ring 233 is meshed and connected with the small gear ring 234;

[0056] Wherein, during the process of the large gear ring 233 rotating around the axis of the inner ring 23, first, the extrusion bar 232 slides along the axial direction of the inner ring 23 and is separated from the partition plate 231, then the partition plate 231 rotates by a certain angle so that the holes of the partition plate 231 are aligned with the extrusion bar 232, and finally the extrusion bar 232 is squeezed into the holes of the partition plate 231 through the extrusion bumps 2321 arranged on the outside thereof.

[0057] The rough grinding part 21 includes a first cylinder body 211 which is rotatably connected to the circumferential inner surface of the support ring 12. The fine grinding part 22 includes a second cylinder body 221 which is rotatably connected to the circumferential inner surface of another support ring 12. A rough grinding bin 212 is fixedly connected to the circumferential inner surface of the first cylinder body 211, and a fine grinding bin 222 is fixedly connected to the circumferential inner surface of the second cylinder body 221. One end of the rough grinding bin 212 close to the fine grinding bin 222 is rotatably connected to the partition plate 231, and one end of the fine grinding bin 222 close to the rough grinding bin 212 is fixedly connected to the large gear ring 233.

[0058] One side of the extrusion bar 232 close to the partition plate 231 is fixedly connected with an extrusion convex block 2321, and the other side of the extrusion bar 232 far from the partition plate 231 is fixedly connected with an L-shaped rod 2322. A clamping block 2323 is fixedly connected to the circumferential inner surface of the inner ring 23, and the extrusion bar 232 is slidably connected to the inner ring 23 through the clamping block 2323.

[0059] The outer surface of the clamping block 2323 is fixedly connected with a telescopic cylinder 23231. A telescopic groove 23232 is formed on the other side of the extrusion bar 232 far from the partition plate 231, and a telescopic spring 23233 is fixedly connected between the telescopic groove 23232 and the telescopic cylinder 23231.

[0060] A spiral chute 2331 and a flat chute 2332 are formed on the circumferential inner surface of the large gear ring 233, and the spiral chute 2331 and the flat chute 2332 are connected end to end. One end of the L-shaped rod 2322 is rotatably connected with a pulley 2333, and the L-shaped rod 2322 is slidably connected to the spiral chute 2331 through the pulley 2333.

[0061] One end of the small gear ring 234 penetrates through the side wall of the cross ring 11 and is fixedly connected with a rotating plate 2341. An arc-shaped convex block 2342 is fixedly connected to the side of the rotating plate 2341 far from the cross ring 11. A pushing column 2343 is rotatably connected to the side of the rotating plate 2341 far from the cross ring 11. A pushing plate 2344 is fixedly connected to the circumferential outer surface of the partition plate 231, and arc-shaped grooves and straight grooves are arranged in a circumferential array on the circumferential outer surface of the pushing plate 2344.

[0062] The feeding part 24 includes a first bearing seat 241, and the discharging part 25 includes a second bearing seat 251. The first bearing seat 241 and the second bearing seat 251 are fixedly connected to the upper surface of the base 1. A feeding pipe 242 is rotatably connected inside the first bearing seat 241, and a discharging pipe 252 is rotatably connected inside the second bearing seat 251. One end of the discharging pipe 252 close to the fine grinding part 22 is fixedly connected with a discharging grate plate 253.

[0063] The air intake part 26 includes a blower 261. The blower 261 is fixedly connected to the upper surface of the base 1. One side of the first cylinder 211 away from the second cylinder 221 is fixedly communicated with a blowing pipe 263. One end of the blowing pipe 263 away from the first cylinder 211 is fixedly communicated with a blowing ring 262. The air outlet pipe of the blower 261 is communicated with the blowing ring 262.

[0064] It further includes a transmission part 3. The transmission part 3 includes a transmission motor 31. The transmission motor 31 is fixedly connected to the upper surface of the base 1. A runner 32 is fixedly connected to the output end of the transmission motor 31. There are two runners 32. The two runners 32 drive the first cylinder 211 and the second cylinder 221 to rotate around the axis of the support ring 12 through a transmission belt 33 arranged on their circumferential outer surfaces.

[0065] The preliminary crushing process of the catalyst raw material:

[0066] By feeding the catalyst raw material into the interior of the feeding part 24, by controlling the continuous rotation of the feeding pipe 242 on the first bearing seat 241, the feeding pipe 242 drives the spiral blade inside it to rotate, so that the spiral blade drives the catalyst raw material to move along the feeding pipe 242 into the interior of the rough grinding bin 212. Start the transmission motor 31. The transmission motor 31 drives the two runners 32 to rotate through the output end. The two runners 32 drive the first cylinder 211 and the second cylinder 221 to rotate inside the support ring 12 through the transmission belt 33 on their outer sides. The first cylinder 211 drives the rough grinding bin 212 inside it to rotate synchronously. The rough grinding bin 212 drives the large steel balls and the catalyst raw material inside it to rotate. Under the combined action of inertia, centrifugal force and gravity, the parabolic operation of the large steel balls and the catalyst raw material is realized. Under the impact of the falling of the large steel balls, the catalyst raw material inside the rough grinding bin 212 is preliminarily crushed, and the large pieces of catalyst raw material are crushed into several small pieces of catalyst raw material. Start the blower 261. The blower 261 blows air into the interior of the blowing ring 262 through the air outlet pipe. The air volume inside the blowing ring 262 flows into the interior of the rough grinding bin 212 through several blowing pipes 263, thereby accelerating the air flow inside the rough grinding bin 212. The air flow accelerates the heat loss generated by the friction and collision between the large steel balls and the catalyst raw material, and avoids the deterioration and caking of the catalyst raw material due to too high temperature. Under the flow action of the catalyst raw material and the pushing action of the wind force, the air flow drives the small pieces of catalyst raw material to flow towards the partition plate 231, so that the flowing small pieces of catalyst raw material pass through the holes of the partition plate 231 and move into the interior of the fine grinding bin 222. The large pieces of catalyst raw material that are not completely broken cannot pass through the partition plate 231 and continue to be located inside the rough grinding bin 212 for preliminary crushing (until the large pieces of catalyst raw material are broken into several small pieces of catalyst raw material).

[0067] The anti-blocking process of the holes on the partition plate 231:

[0068] During the process that the runner 32 drives the second cylinder body 221 to rotate inside the support ring 12 through the transmission belt 33, the second cylinder body 221 drives the fine grinding bin 222 inside it to rotate synchronously. The fine grinding bin 222 drives the large gear ring 233 to rotate around the axis of the inner ring 23. Under the meshing action of the large gear ring 233 and the small gear ring 234, the large gear ring 233 drives the small gear ring 234 to rotate inside the inner ring 23. The small gear ring 234 drives the rotating plate 2341 to rotate inside the inner ring 23. The rotating plate 2341 drives the arc-shaped convex block 2342 and the push column 2343 on its outer side to rotate, so that the arc surface of the arc-shaped convex block 2342 slides along the inner surface of the arc groove of the push plate 2344. Under the limiting action of the arc-shaped convex block 2342, the positions of the push plate 2344 and the partition plate 231 inside the cross ring 11 are fixed (preventing the partition plate 231 from rotating). The large gear ring 233 drives the spiral chute 2331 and the flat chute 2332 inside it to rotate synchronously. Under the combined limiting action of the spiral chute 2331 and the clamping block 2323, the rotating spiral chute 2331 pulls the two L-shaped rods 2322 and the extrusion strip 232 to move along the axial direction of the inner ring 23 towards the fine grinding bin 222 through the pulley 2333. The extrusion strip 232 drives the extrusion convex block 2321 on its outer side to separate from the hole of the partition plate 231 (preventing the extrusion convex block 2321 from hindering the rotation of the partition plate 231). After the rotating large gear ring 233 drives the flat chute 2332 inside it to be slidably connected with the pulley 2333, under the combined limiting action of the flat chute 2332 and the clamping block 2323, the positions of the L-shaped rod 2322, the extrusion strip 232 and the extrusion convex block 2321 inside the inner ring 23 are fixed (the extrusion convex block 2321 is always separated from the hole of the partition plate 231).

[0069] While the rotating plate 2341 drives the arc-shaped convex block 2342 to separate from the pushing plate 2344, the rotating plate 2341 drives the pushing column 2343 to be connected with the pushing plate 2344 through the straight groove (releasing the limit on the baffle plate 231). The rotating pushing column 2343 drives the pushing plate 2344 and the baffle plate 231 to rotate a certain angle around the axis of the inner ring 23 through the straight groove (so that another group of holes on the baffle plate 231 are aligned with the extrusion convex block 2321). While the rotating pushing column 2343 separates from the pushing plate 2344, the rotating arc-shaped convex block 2342 is connected with the pushing plate 2344 again, and the baffle plate 231 is limited again (preventing the baffle plate 231 from rotating by itself). The rotating large gear ring 233 drives the spiral chute 2331 to be slidably connected with the pulley 2333 again. Under the combined limiting action of the spiral chute 2331 and the clamping block 2323, the rotating spiral chute 2331 pushes the two L-shaped rods 2322 and the extrusion strip 232 along the axial direction of the inner ring 23 towards the rough grinding chamber 212 through the pulley 2333. The extrusion strip 232 drives the extrusion convex block 2321 to squeeze into the holes of the baffle plate 231 again, dredging another group of holes of the baffle plate 231. As the large gear ring 233 continues to rotate, the extrusion strip 232 dredges each group of holes on the baffle plate 231 in turn, preventing the catalyst raw material from blocking the holes of the baffle plate 231, thereby improving the passing efficiency of the small catalyst raw material on the baffle plate 231.

[0070] The secondary crushing process of the catalyst raw material:

[0071] After the small catalyst raw material enters the fine grinding chamber 222, the fine grinding chamber 222 drives the small steel balls and the small catalyst raw material inside it to rotate. Under the combined action of inertia, centrifugal force and gravity, the parabolic operation of the small steel balls and the small catalyst raw material is realized. Under the impact of the falling small steel balls, the small catalyst raw material inside the fine grinding chamber 222 is crushed for the second time, and the small catalyst raw material is ground into granular catalyst raw material. Under the flow action of the catalyst raw material and the pushing action of the wind, the air flow drives the granular catalyst raw material to flow towards the discharge grid plate 253, so that the flowing granular catalyst raw material passes through the discharge grid plate 253 and moves towards the inside of the discharge pipe 252. By controlling the continuous rotation of the discharge pipe 252 on the second bearing seat 251, the discharge pipe 252 drives the spiral blade inside it to rotate, so that the spiral blade drives the granular catalyst raw material to discharge towards the outside along the discharge pipe 252.

[0072] First, the relatively large catalyst raw material is initially crushed into relatively small catalyst raw material by the rough grinding chamber 212, and then the relatively small catalyst raw material is crushed into granular catalyst raw material by the fine grinding chamber 222, thereby reducing the mechanical strength and crushing difficulty of the large catalyst raw material, shortening the overall crushing time of the catalyst raw material, and improving the overall crushing efficiency of the catalyst raw material.

[0073] In summary, by adopting the rough grinding part 21 and the fine grinding part 22, the present application has the following advantages:

[0074] Advantage 1: The catalyst raw material is first preliminarily crushed in the rough grinding bin 212, and then secondarily crushed in the fine grinding bin 222, thereby reducing the mechanical strength and crushing difficulty of the large catalyst raw material, further shortening the overall crushing time of the catalyst raw material, and improving the overall crushing efficiency of the catalyst raw material.

[0075] Advantage 2: During the continuous rotation of the large gear ring 233, by controlling the partition plate 231 to perform an intermittent rotational motion around the axis of the inner ring 23, and controlling the extrusion bar 232 to perform a reciprocating motion along the axial direction of the inner ring 23, the extrusion bar 232 sequentially dredges each group of holes on the partition plate 231, preventing the catalyst raw material from blocking the holes of the partition plate 231, thereby improving the passing efficiency of the small catalyst raw material on the partition plate 231.

[0076] Advantage 3: During the process that the L bar 2322 drives the extrusion bar 232 to perform a reciprocating motion along the axial direction of the inner ring 23, the telescopic cylinder 23231 buffers the extrusion bar 232 and the L bar 2322 through the telescopic spring 23233, thereby reducing the impact of the L bar 2322 on the spiral chute 2331 and the flat chute 2332, further protecting the L bar 2322 and the pulley 2333, and prolonging the service life of the L bar 2322 and the pulley 2333.

[0077] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A ball milling and granulating catalyst preparation system, characterized in that: include: A base (1), wherein a cross ring (11) and a support ring (12) are fixedly connected to the upper surface of the base (1), and two support rings (12) are provided and are symmetrically distributed with the cross ring (11) as the center; A bin body (2), the bin body (2) comprising a coarse grinding portion (21) and a fine grinding portion (22), the coarse grinding portion (21) and the fine grinding portion (22) being rotatably connected to the upper surface of the base (1) via a support ring (12), the inner surface of the cross ring (11) being fixedly connected to an inner ring (23), and the upper surface of the base (1) being fixedly connected to a feeding portion (24), a discharging portion (25) and an air inlet portion (26); The inner ring (23) is rotatably connected to a partition plate (231) on one side close to the rough grinding portion (21), an extrusion strip (232) is provided on the inner surface of the inner ring (23) for sliding along the axial direction of the inner ring (23), a large toothed ring (233) is rotatably connected to one side of the inner ring (23) close to the fine grinding portion (22), a small toothed ring (234) is rotatably connected to the inner surface of the cross ring (11), and the large toothed ring (233) is meshingly connected with the small toothed ring (234); In the process of the large toothed ring (233) rotating around the axis of the inner ring (23), the extrusion strip (232) first slides along the axial direction of the inner ring (23) to separate from the partition plate (231), and then the partition plate (231) rotates at a certain angle so that the hole of the partition plate (231) is aligned with the extrusion strip (232), and finally the extrusion strip (232) is squeezed into the hole of the partition plate (231) through the extrusion protrusion (2321) arranged on its outer side.

2. A ball milling and granulating catalyst preparation system according to claim 1, characterized in that: The coarse grinding portion (21) comprises a first cylinder (211), the first cylinder (211) being rotatably connected to the inner surface of the circumference of the support ring (12); the fine grinding portion (22) comprises a second cylinder (221), the second cylinder (221) being rotatably connected to the inner surface of the circumference of another support ring (12); a coarse grinding chamber (212) being fixedly connected to the inner surface of the circumference of the first cylinder (211); a fine grinding chamber (222) being fixedly connected to the inner surface of the circumference of the second cylinder (221); one end of the coarse grinding chamber (212) close to the fine grinding chamber (222) is rotatably connected to a partition plate (231), and one end of the fine grinding chamber (222) close to the coarse grinding chamber (212) is fixedly connected to a large gear ring (233).

3. A ball milling and granulating catalyst preparation system according to claim 1, characterized in that: The side of the extrusion strip (232) close to the partition plate (231) is fixedly connected to an extrusion protrusion (2321), the side of the extrusion strip (232) away from the partition plate (231) is fixedly connected to an L rod (2322), the inner surface of the circumference of the inner ring (23) is fixedly connected to a clamping block (2323), and the extrusion strip (232) is slidably connected to the inner ring (23) via the clamping block (2323).

4. A ball milling and granulating catalyst preparation system according to claim 3, characterized in that: The outer surface of the clamping block (2323) is fixedly connected with a telescopic cylinder (23231), a telescopic groove (23232) is provided on the side of the extrusion strip (232) away from the partition plate (231), and a telescopic spring (23233) is fixedly connected between the telescopic groove (23232) and the telescopic cylinder (23231).

5. A ball milling and granulating catalyst preparation system according to claim 3, characterized in that: A spiral groove (2331) and a flat groove (2332) are provided on the inner circumferential surface of the large gear ring (233), and the spiral groove (2331) and the flat groove (2332) are connected end to end. One end of the L rod (2322) is rotatably connected to a pulley (2333), and the L rod (2322) is slidably connected to the spiral groove (2331) via the pulley (2333).

6. A ball milling and granulating catalyst preparation system according to claim 1, characterized in that: One end of the small tooth ring (234) passes through the side wall of the cross ring (11) and is fixedly connected to a rotating plate (2341); a side of the rotating plate (2341) away from the cross ring (11) is fixedly connected to an arc-shaped protrusion (2342); a side of the rotating plate (2341) away from the cross ring (11) is rotatably connected to a pushing column (2343); a pushing plate (2344) is fixedly connected to the circumferential outer surface of the partition plate (231); and arc grooves and straight grooves are arranged in a circumferential array on the circumferential outer surface of the pushing plate (2344).

7. A ball milling and granulating catalyst preparation system according to claim 1, characterized in that: The feeding part (24) includes a first bearing seat (241), and the discharging part (25) includes a second bearing seat (251). The first bearing seat (241) and the second bearing seat (251) are fixedly connected to the upper surface of the base (1). The first bearing seat (241) is internally rotatably connected to a feeding pipe (242), and the second bearing seat (251) is internally rotatably connected to a discharging pipe (252). One end of the discharging pipe (252) close to the fine grinding part (22) is fixedly connected to a discharging grate plate (253).

8. A ball milling and granulating catalyst preparation system according to claim 2, characterized in that: The air inlet portion (26) comprises a fan (261), the fan (261) being fixedly connected to the upper surface of the base (1); a side of the first cylinder (211) away from the second cylinder (221) is fixedly connected to a blowing pipe (263); an end of the blowing pipe (263) away from the first cylinder (211) is fixedly connected to a blowing ring (262); and an air outlet pipe of the fan (261) is connected to the blowing ring (262).

9. A ball milling and granulating catalyst preparation system according to claim 2, characterized in that: The invention also comprises a transmission part (3), wherein the transmission part (3) comprises a transmission motor (31), wherein the transmission motor (31) is fixedly connected to the upper surface of the base (1), and a rotating wheel (32) is fixedly connected to the output end of the transmission motor (31), wherein two rotating wheels (32) are provided, and the two rotating wheels (32) drive the first cylinder (211) and the second cylinder (221) to rotate around the axis of the support ring (12) via a transmission belt (33) provided on the outer circumferential surface thereof.

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