Accurate grinding and sieving device for cane sugar raw materials

Abstract

The invention relates to the field of sucrose sieving equipment, in particular to a sucrose raw material fine grinding and sieving device. According to the technical scheme, the device comprises a supporting frame and a coarse grinding mechanism fixed to the top end of the supporting frame, the coarse grinding mechanism comprises a coarse grinding box fixed to the top end of the supporting frame, a smashing mechanism is arranged on the inner wall of the coarse grinding box, a feeding mechanism is arranged at the top end of the coarse grinding box, and a shaking and screening mechanism is arranged at the bottom end of the supporting frame; and the shaking screening mechanism comprises a material guiding opening penetrating through the bottom end of the supporting frame and a shaking mechanism fixed to one side of the bottom end of the supporting frame, the bottom end of the material guiding opening is fixedly connected with a threaded hose, and the bottom end of the threaded hose is fixedly connected with a screening tank. The sucrose raw material fine grinding and screening device has the advantages that the situation that the sucrose raw material in the device melts due to too high heat in the crushing process is prevented, the particle size of the raw material is smaller, and the sucrose component can be extracted more easily.

Description

Technical Field

[0001] The invention relates to the field of sucrose screening equipment, in particular to a sucrose raw material fine grinding and screening device. Background Art

[0002] Sucrose is one of the most commonly used and most used auxiliary materials in the pharmaceutical industry. It is of great significance for pharmaceutical companies to improve their product competitiveness by controlling the cost reduction, quality improvement and efficiency increase of the entire industry chain from the source of sucrose production and preparation. In the process of sucrose production, it is often necessary to crush the sucrose raw materials, the main reason being to improve the extraction efficiency and product quality. In the sucrose production process, sucrose crushing is the first step. The sucrose raw materials are ground into finer powders, which makes it easier to extract the sucrose components and improve the dissolution rate and uniformity of the sugar. However, for the crushing and screening of sucrose raw materials, the crushed sucrose particles often have different sizes, resulting in the sucrose components inside the raw materials being extracted during the extraction process. Due to the different particle sizes, the sucrose components in part of the sucrose raw materials are completely extracted, but the other part will have residual sucrose components, resulting in the waste of raw materials and low yield. Therefore, the present application proposes a sucrose raw material fine grinding and screening device. Summary of the invention

[0003] The purpose of the present invention is to provide a sucrose raw material fine grinding and screening device to address the problem of crushing and screening of sucrose raw materials in the background technology. The crushed sucrose particle sizes are uneven, resulting in the sucrose components inside the raw materials being completely extracted due to the uneven particle sizes, but the sucrose components in part of the sucrose raw materials will remain in another part, resulting in waste of raw materials and low yield.

[0004] The technical solution of the present invention is: a sucrose raw material fine grinding and screening device, comprising a support frame and a coarse grinding mechanism fixed to the top of the support frame, the coarse grinding mechanism comprises a coarse grinding box fixed to the top of the support frame, the inner wall of the coarse grinding box is provided with a crushing mechanism, and the top of the coarse grinding box is provided with a feeding mechanism; The bottom end of the support frame is provided with a shaking screening mechanism, and the shaking screening mechanism includes a material guide port penetrating the bottom end of the support frame, the bottom end of the material guide port is fixedly connected with a threaded hose, the bottom end of the threaded hose is fixedly connected with a screening tank, the inner wall of the screening tank is fixedly connected with a plurality of limiting rings, the inner walls of the plurality of limiting rings are slidably connected with filter screens, and the outer wall of the screening tank is provided with a driving mechanism; The fine grinding mechanism includes a feed port fixed to the bottom end of the screening tank, the bottom end of the feed port is fixedly connected to a diversion port, the bottom end of the diversion port is fixedly connected to two material transfer pipes, and the grinding mechanism is arranged at one end of the two material transfer pipes away from the diversion port.

[0005] Optionally, the crushing mechanism includes an inner box fixed to the inner bottom end surface of the coarse grinding box, two through shafts penetrate one side of the outer wall of the inner box, the inner walls of the two through shafts are rotatably connected to drive rods, the outer walls of the two drive rods are fixedly connected to crushing rollers, and the outer wall of the drive rod on one side is fixedly connected to a driving gear, and one side of the outer wall of the driving gear is meshed with a meshing gear.

[0006] Optionally, a plurality of cooling circulation pipes are fixedly connected to the outer wall of the inner box, one end of the cooling circulation pipe near the upper end is fixedly connected to a return pipe, one side of the cooling circulation pipe near the lower end is fixedly connected to an output pipe, one end of the return pipe and the output pipe are fixedly connected to a cooling water circulation box, and a cooling fan is fixedly connected to the outer wall of the cooling water circulation box.

[0007] Optionally, the feeding mechanism includes a material tank fixed to the top of the coarse grinding box, the inner wall of the material tank is fixedly connected to a guide screw, and one side of the outer wall of the material tank is fixedly connected to an air duct, the end of the air duct away from the material tank is fixedly connected to an air compressor device, and the top of the material tank is fixedly connected to a feeding pipe.

[0008] Optionally, the driving mechanism includes a driving motor 1 fixed to the bottom end of the supporting frame, the output end of the driving motor 1 is fixedly connected to a transmission wheel 1, the outer wall of the transmission wheel 1 is provided with a transmission belt, the inner wall of the transmission belt is transmission-connected to a transmission wheel 2 on a side away from the transmission wheel 1, one side of the outer wall of the transmission wheel 2 is fixedly connected to a connecting rod structure, and a fixing rod passes through the center position of the transmission wheel 2.

[0009] Optionally, one end of the connecting rod structure away from the second transmission wheel is fixedly connected to a shaking bracket, one side of the outer wall of the shaking bracket is fixedly connected to a limiting rod, the top end of the limiting rod is slidably connected to a limiting block, and the top end of the limiting block is fixedly connected to the bottom end of the support frame.

[0010] Optionally, a back-blowing blower is fixedly connected to one side of the top of the support frame, an output end of the back-blowing blower is fixedly connected to an air guide pipe 2, and an end of the air guide pipe 2 away from the back-blowing blower is fixedly connected to one side of the material guide port.

[0011] Optionally, the grinding mechanism includes a fine grinding tank fixed to the outer wall of the material transmission pipe, the inner wall of the fine grinding tank is fixedly connected to a gear ring, the inner wall of the gear ring is meshed with multiple driven gears, multiple driven gears are meshed with driving wheels near the center, the top of the driving wheel is fixedly connected to drive motor 2, the bottom ends of the multiple driven gears are penetrated by connecting rods, the bottom ends of the multiple connecting rods are fixedly connected to grinding blocks, the bottom end of the fine grinding tank is embedded with a fine screen plate, and the bottom end of the fine grinding tank is fixedly connected to a collecting tank.

[0012] Compared with the prior art, the present application includes at least one of the following beneficial technical effects: through the multiple cooling circulation pipes sleeved on the outer wall of the coarse grinding box, the cooling water absorbs the temperature emitted from the inner box inside the coarse grinding box when flowing in the cooling circulation pipe, and the cooling water is circulated through the cooling water circulation box, the reflux pipe and the output pipe. The cooling water is dissipated in the cooling water circulation box through the cooling fan to prevent the internal sucrose raw material from melting due to excessive heat during the crushing process, and after the coarsely crushed sucrose raw material is screened by the shaking screening mechanism, the sucrose raw material is finely ground for the second time by the fine grinding mechanism, so that the volume of the raw material is smaller and the sucrose component is easier to extract. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of a device for fine grinding and screening of sucrose raw materials; Figure 2 It is a schematic diagram of the structure of a coarse grinding mechanism of a sucrose raw material fine grinding and screening device; Figure 3 It is a schematic diagram of the structure of a shaking screening mechanism of a sucrose raw material fine grinding and screening device; Figure 4 It is a schematic diagram of the connection structure of a screening tank of a sucrose raw material fine grinding and screening device; Figure 5 A schematic diagram of the internal structure of a screening tank of a sucrose raw material fine grinding and screening device; Figure 6 The figure is a schematic diagram of the structure of a fine grinding mechanism of a sucrose raw material fine grinding and screening device.

[0014] Reference numerals: 1, support frame; 2, coarse grinding mechanism; 21, coarse grinding box; 22, inner box; 23, through shaft; 24, driving rod; 25, driving gear; 26, meshing gear; 27, crushing roller; 28, cooling circulation pipe; 29, return pipe; 210, output pipe; 211, cooling water circulation box; 212, cooling fan; 213, material tank; 214, guide screw; 215, feed pipe; 216, air compressor equipment; 217, air guide pipe 1; Shaking screening mechanism; 31, material guide port; 32, threaded hose; 33, screening tank; 34, driving motor 1; 35, transmission wheel 1; 36, transmission belt; 37, fixing rod; 38, transmission wheel 2; 39, connecting rod structure; 310, shaking bracket; 311, limiting rod; 312, limiting block; 313, anti-blowing machine; 314, air guide pipe 2; 315, limiting ring; 316, filter screen; Fine grinding mechanism; 41. feed inlet; 42. diversion port; 43. material transmission pipe; 44. fine grinding tank; 45. gear ring; 46. driven gear; 47. driving wheel; 48. driving motor 2; 49. connecting rod; 410. grinding block; 411. collecting tank; 412. fine screen plate. DETAILED DESCRIPTION

[0015] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0016] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0017] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0019] It should be noted that the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0021] like Figure 1 and Figure 2 As shown, a sucrose raw material fine grinding and screening device proposed by the present invention comprises a support frame 1 and a coarse grinding mechanism 2 fixed to the top of the support frame 1, the coarse grinding mechanism 2 comprises a coarse grinding box 21 fixed to the top of the support frame 1, the inner wall of the coarse grinding box 21 is provided with a crushing mechanism, the crushing mechanism comprises an inner box 22 fixed to the inner bottom end surface of the coarse grinding box 21, one side of the outer wall of the inner box 22 penetrates two through shafts 23, the inner walls of the two through shafts 23 are rotatably connected with driving rods 24, the outer walls of the two driving rods 24 are fixedly connected with crushing rollers 27, and the outer wall of the driving rod 24 on one side is fixedly connected with a driving gear 25, and one side of the outer wall of the driving gear 25 is meshed with a meshing gear 26, the outer wall of the inner box 22 is fixedly connected with a plurality of cooling circulation pipes 28, one end of the cooling circulation pipe 28 near the upper end is fixedly connected with a return pipe 29, one side of the cooling circulation pipe 28 near the lower end is fixedly connected with an output pipe 210, and one end of the return pipe 29 and the output pipe 210 is fixedly connected with a cooling roller 27. The outer wall of the cooling water circulation box 211 is fixedly connected with a cooling fan 212. The motor arranged outside the rough grinding mechanism 2 drives the driving rod 24, and the driving gear 25 and the meshing gear 26 are driven by the driving rod 24, so that the two crushing rollers 27 can crush the sucrose raw material. The multiple cooling circulation pipes 28 arranged on the outer wall of the rough grinding box 21 allow the cooling water to flow in the cooling circulation pipes 28. The temperature emitted from the inner box 22 inside the rough grinding box 21 is absorbed, and the cooling water is circulated through the cooling water circulation box 211, the return pipe 29 and the output pipe 210. The cooling water is dissipated in the cooling water circulation box 211 through the cooling fan 212 to prevent the internal sucrose raw material from melting due to excessive heat during the crushing process.

[0022] It should be added that Figure 2 As shown, a feeding mechanism is provided at the top of the coarse grinding box 21, and the feeding mechanism includes a material tank 213 fixed on the top of the coarse grinding box 21, and a guide screw 214 is fixedly connected to the inner wall of the material tank 213. By setting the guide screw 214, the device can guide the incoming sucrose raw material, and an air guide pipe 217 is fixedly connected to one side of the outer wall of the material tank 213, and an air compressor device 216 is fixedly connected to the end of the air guide pipe 217 away from the material tank 213. By setting the air guide pipe 217 and the air compressor device 216, compressed air can be used to disperse the sucrose raw material to prevent the accumulation of raw materials from affecting the crushing effect. A feeding pipe 215 is fixedly connected to the top of the material tank 213, and the device can enter the material by setting the feeding pipe 215.

[0023] It is necessary to describe additionally that Figure 3 , Figure 4 and Figure 5As shown, a shaking screening mechanism 3 is provided at the bottom end of the support frame 1, and the shaking screening mechanism 3 includes a material guide port 31 that runs through the bottom end of the support frame 1, and a threaded hose 32 is fixedly connected to the bottom end of the material guide port 31, and a screening tank 33 is fixedly connected to the bottom end of the threaded hose 32, and a plurality of limiting rings 315 are fixedly connected to the inner wall of the screening tank 33, and a filter screen 316 is slidably connected to the inner wall of the plurality of limiting rings 315, and a driving mechanism is provided on the outer wall of the screening tank 33, and the driving mechanism includes a driving motor 1 34 fixed to the bottom end of the support frame 1, and a transmission wheel 1 35 is fixedly connected to the output end of the driving motor 1 34, and a transmission belt 36 is sleeved on the outer wall of the transmission wheel 1 35, and a transmission wheel 2 38 is transmission-connected to the inner wall of the transmission belt 36 away from the transmission wheel 1 35. A connecting rod structure 39 is fixedly connected to one side of the outer wall of the transmission wheel 2 38, and the center of the transmission wheel 2 38 A fixed rod 37 runs through the position, and the driving mechanism includes a driving motor 1 34 fixed to the bottom end of the supporting frame 1, and the output end of the driving motor 1 34 is fixedly connected to a transmission wheel 1 35, and the outer wall of the transmission wheel 1 35 is sleeved with a transmission belt 36, and the inner wall of the transmission belt 36 is transmission-connected to a transmission wheel 2 38 on the side away from the transmission wheel 1 35, and the outer wall of the transmission wheel 2 38 is fixedly connected to a connecting rod structure 39 on one side. The driving motor 1 34 is arranged to drive the transmission wheel 1 35 and the transmission belt 36 to rotate, so that the transmission wheel 2 38 can be rotated to drive the connecting rod structure 39 and the shaking bracket 310 to swing back and forth, and the shaking bracket 310 is limited by the limit rod 311 and the limit block 312, and the screening tank 33 inside the shaking bracket 310 is shaken, so that the coarsely crushed raw materials entering the shaking and screening mechanism 3 are screened by the filter screen 316.

[0024] And, if Figure 4 As shown, a back-blowing blower 313 is fixedly connected to one side of the top of the support frame 1, and an output end of the back-blowing blower 313 is fixedly connected to an air duct 2 314, and one end of the air duct 2 314 away from the back-blowing blower 313 is fixedly connected to one side of the material guide port 31. The back-blowing blower 313 is provided to blow air to the air duct 2 314, so that the back-blowing air can disperse the material entering the material guide port 31, thereby preventing material accumulation from affecting screening.

[0025] In addition, if Figure 1 and Figure 6As shown, the fine grinding mechanism 4 includes a feed port 41 fixed to the bottom end of the screening tank 33, the bottom end of the feed port 41 is fixedly connected with a diversion port 42, the bottom end of the diversion port 42 is fixedly connected with two material transmission pipes 43, and the grinding mechanism is arranged at one end of the two material transmission pipes 43 away from the diversion port 42, and the grinding mechanism includes a fine grinding tank 44 fixed to the outer wall of the material transmission pipe 43, the inner wall of the fine grinding tank 44 is fixedly connected with a gear ring 45, the inner wall of the gear ring 45 is meshed with a plurality of driven gears 46, and a driving wheel 47 is meshed with the center position of the plurality of driven gears 46, and the top end of the driving wheel 47 is fixedly connected with a driving motor 2 48, the bottom ends of the plurality of driven gears 46 are all penetrated by connecting rods 49, and the bottom ends of the plurality of connecting rods 49 are fixedly connected with grinding blocks 410, a fine sieve plate 412 is embedded in the bottom end of the fine grinding tank 44, and the bottom end of the fine grinding tank 44 is fixedly connected with a collecting tank 411. The driving motor 48 drives the driving wheel 47 to rotate, so that the driving wheel 47 can drive multiple driven gears 46 meshing around it to rotate, so that multiple connecting rods 49 can rotate and drive the grinding block 410 below to grind the material on the fine screen plate 412. Qualified materials fall through the fine screen plate 412 into the collecting tank 411 for collection, so that the raw materials are ground finer and the sucrose component can be better extracted.

[0026] In this embodiment, the motor arranged outside the rough grinding mechanism 2 is used to drive the driving rod 24, and the driving rod 24 drives the driving gear 25 and the meshing gear 26, so that the two crushing rollers 27 can crush the sucrose raw material. The multiple cooling circulation pipes 28 arranged on the outer wall of the rough grinding box 21 allow the cooling water to flow in the cooling circulation pipe 28. The temperature emitted from the inner box 22 inside the rough grinding box 21 is absorbed, and the cooling water is circulated through the cooling water circulation box 211, the return pipe 29 and the output pipe 210. The cooling water is dissipated in the cooling water circulation box 211 through the cooling fan 212 to prevent the internal sucrose raw material from melting due to excessive heat during the crushing process. The air guide pipe 217 and the air compressor device 216 are provided to allow the compressed air to disperse the sucrose raw material to prevent the accumulation of raw materials from affecting the crushing effect. The top of the material tank 213 is fixedly connected with a feed pipe 215. The feed pipe 215 allows the device to enter the material. The driving motor is provided The first 34 drives the transmission wheel 1 35 and the transmission belt 36 to rotate, so that the second transmission wheel 38 can rotate to drive the connecting rod structure 39 and the shaking bracket 310 to swing back and forth, and the shaking bracket 310 is limited by the limit rod 311 and the limit block 312. The screening tank 33 inside the shaking bracket 310 is shaken, and the coarse crushed raw materials entering the shaking and screening mechanism 3 are screened by the filter screen 316. The back-blowing air blower 313 is set to blow the air guide pipe 2 314, so that the back-blowing air is In order to blow away the material entering the material guide port 31 to prevent material accumulation from affecting screening, the driving motor 48 drives the driving wheel 47 to rotate, so that the driving wheel 47 can drive multiple driven gears 46 meshing around it to rotate, so that multiple connecting rods 49 can rotate and drive the grinding block 410 below to grind the material on the fine screen plate 412. Qualified materials fall through the fine screen plate 412 into the collecting tank 411 for collection, so that the raw materials can be ground finer and the sucrose component can be better extracted.

[0027] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A sucrose raw material fine grinding and screening device, comprising a support frame (1) and a coarse grinding mechanism (2) fixed to the top of the support frame (1), characterized in that: The coarse grinding mechanism (2) comprises a coarse grinding box (21) fixed to the top of the support frame (1), the inner wall of the coarse grinding box (21) is provided with a crushing mechanism, and the top of the coarse grinding box (21) is provided with a feeding mechanism; The bottom end of the support frame (1) is provided with a shaking screening mechanism (3), the shaking screening mechanism (3) comprises a material guide port (31) penetrating the bottom end of the support frame (1), the bottom end of the material guide port (31) is fixedly connected to a threaded hose (32), the bottom end of the threaded hose (32) is fixedly connected to a screening tank (33), the inner wall of the screening tank (33) is fixedly connected to a plurality of limiting rings (315), the inner walls of the plurality of limiting rings (315) are slidably connected to filter screens (316), and the outer wall of the screening tank (33) is provided with a driving mechanism; The fine grinding mechanism (4) comprises a feed port (41) fixed to the bottom end of the screening tank (33); the bottom end of the feed port (41) is fixedly connected to a diversion port (42); the bottom end of the diversion port (42) is fixedly connected to two material transfer pipes (43); and the grinding mechanism is provided at one end of the two material transfer pipes (43) away from the diversion port (42).

2. The device for fine grinding and screening sucrose raw materials according to claim 1, characterized in that: The pulverizing mechanism comprises an inner box (22) fixed to the inner bottom end surface of the coarse grinding box (21), two through shafts (23) passing through one side of the outer wall of the inner box (22), the inner walls of the two through shafts (23) are rotatably connected to driving rods (24), the outer walls of the two driving rods (24) are fixedly connected to pulverizing rollers (27), and the outer wall of the driving rod (24) on one side is fixedly connected to a driving gear (25), and one side of the outer wall of the driving gear (25) is meshed with a meshing gear (26).

3. A sucrose raw material fine grinding and screening device according to claim 2, characterized in that: A plurality of cooling circulation pipes (28) are fixedly connected to the outer wall of the inner box (22); one end of the cooling circulation pipe (28) near the upper end is fixedly connected to a return pipe (29); one side of the cooling circulation pipe (28) near the lower end is fixedly connected to an output pipe (210); one end of the return pipe (29) and the output pipe (210) are fixedly connected to a cooling water circulation box (211); and the outer wall of the cooling water circulation box (211) is fixedly connected to a cooling fan (212).

4. The device for fine grinding and screening sucrose raw materials according to claim 1, characterized in that: The feeding mechanism comprises a material tank (213) fixed to the top of the coarse grinding box (21), the inner wall of the material tank (213) being fixedly connected to a guide screw (214), and one side of the outer wall of the material tank (213) being fixedly connected to an air guide pipe (217), an end of the air guide pipe (217) away from the material tank (213) being fixedly connected to an air compressor device (216), and the top of the material tank (213) being fixedly connected to a feeding pipe (215).

5. The device for fine grinding and screening sucrose raw materials according to claim 1, characterized in that: The driving mechanism comprises a driving motor 1 (34) fixed to the bottom end of the support frame (1); the output end of the driving motor 1 (34) is fixedly connected to a transmission wheel 1 (35); the outer wall of the transmission wheel 1 (35) is sleeved with a transmission belt (36); the inner wall of the transmission belt (36) is transmission-connected to a transmission wheel 2 (38) at a side away from the transmission wheel 1 (35); a connecting rod structure (39) is fixedly connected to one side of the outer wall of the transmission wheel 2 (38); and a fixing rod (37) passes through the center position of the transmission wheel 2 (38).

6. The device for fine grinding and screening of sucrose raw materials according to claim 5, characterized in that: One end of the connecting rod structure (39) away from the second transmission wheel (38) is fixedly connected to a shaking bracket (310), one side of the outer wall of the shaking bracket (310) is fixedly connected to a limiting rod (311), the top end of the limiting rod (311) is slidably connected to a limiting block (312), and the top end of the limiting block (312) is fixedly connected to the bottom end of the support frame (1).

7. The device for fine grinding and screening sucrose raw materials according to claim 1, characterized in that: A back-blowing blower (313) is fixedly connected to one side of the top end of the support frame (1); an output end of the back-blowing blower (313) is fixedly connected to a second air guide pipe (314); and an end of the second air guide pipe (314) away from the back-blowing blower (313) is fixedly connected to one side of the material guide port (31).

8. The device for fine grinding and screening sucrose raw materials according to claim 1, characterized in that: The grinding mechanism comprises a fine grinding tank (44) fixed to the outer wall of a material transmission pipe (43); a gear ring (45) is fixedly connected to the inner wall of the fine grinding tank (44); a plurality of driven gears (46) are meshed with the inner wall of the gear ring (45); a driving wheel (47) is meshed near the center of the plurality of driven gears (46); a driving motor 2 (48) is fixedly connected to the top of the driving wheel (47); a connecting rod (49) passes through the bottom ends of the plurality of driven gears (46); a grinding block (410) is fixedly connected to the bottom ends of the plurality of connecting rods (49); a fine sieve plate (412) is embedded in the bottom end of the fine grinding tank (44); and a collecting tank (411) is fixedly connected to the bottom end of the fine grinding tank (44).

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