A bulk drug granulating device with multi-layer classification and screening

Abstract

The present invention discloses a drug granulation device with multi-layer classification and screening, which relates to the technical field of auxiliary granulation devices, including an elevated workbench and a granulator body, a support arm is fixedly installed on the outer wall of the elevated workbench, the granulator body is fixedly installed on the inner wall of the support arm, and auxiliary granulation mechanisms are arranged on the top and bottom of the elevated workbench. The present invention uses the design of elastic member 1 to make the first sieve frame as a whole elastically connected to the bottom of the extension seat, and then uses the design of a vibration motor to drive the first sieve frame as a whole to perform strong vibration work, and then, the upper stainless steel screen can screen the larger particles inside the material into the inner cavity of the first sieve frame, and the lower stainless steel screen can screen the smaller particles inside the material from the bottom of the second sieve frame, thereby avoiding the problem that larger particles or smaller particles will affect the average quality of subsequent pharmaceutical preparations, thereby improving the production quality of drugs.

Description

Technical Field

[0001] The invention relates to the technical field of auxiliary granulation devices, and in particular to a bulk drug granulation device with multi-layer classification and screening. Background Art

[0002] Granulating equipment is a kind of molding machine that can make materials into specific shapes. It is generally divided into: roller dry granulator, drum granulator, dry roller granulator. The principle of drum granulator: steam, gaseous ammonia or phosphoric acid, nitric acid, sulfuric acid or nitrogen solution, phosphorus ammonia slurry, heavy calcium slurry is introduced into the machine to complete the chemical reaction of compound fertilizer granulation process in a tubular reactor; or a small amount of water is added to the compound fertilizer cold granulation process. The material to be granulated is passed through the rotary motion of the cylinder, rolled and rotated in the cylinder, and the material is agglomerated into balls at a certain humidity and temperature. During the movement, smaller particles gradually form particles of a certain specification to complete the granulation process. Granulating equipment will be used in the production process of raw materials.

[0003] A Chinese patent discloses a Ledipasvir API granulation device, with the publication number CN210171399U. The technical solution disclosed in the patent document is as follows: it includes a device body, a feed hopper is arranged on the top of the device body, a material control trough plate is connected to the bottom of the feed hopper, a material trough is arranged on the top of the material control trough plate, the feed hopper is connected to the notch of the material trough, a plurality of discharge through holes are opened at the bottom of the material trough, and a control and discharge device is rotatably connected to the bottom of the material trough.

[0004] In order to solve the problem that the existing granulation equipment does not have a stirring function, the existing technology adopts a method of designing motors and other components to fully mix and stir the materials. However, the granulated materials cannot be screened. There are large or small materials inside the granulated materials. Large or small materials will affect the uniformity of subsequent pharmaceutical preparations, thereby affecting the quality of the drugs. Summary of the invention

[0005] The present invention provides a bulk drug granulating device with multi-layer classification and screening to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A bulk drug granulating device with multi-layer classification and screening comprises an elevated workbench and a granulator body, a support arm is fixedly mounted on the outer wall of the elevated workbench, the granulator body is fixedly mounted on the inner wall of the support arm, and auxiliary granulating mechanisms are arranged on the top and bottom of the elevated workbench.

[0008] The auxiliary granulation mechanism comprises a multi-layer screening unit, a drying processing unit, a buffer receiving unit and a waste heat recovery unit.

[0009] The multi-layer screening unit includes a transfer material frame, which is fixedly connected to the bottom of the elevated workbench, an extension seat is fixedly installed on the outer wall of the transfer material frame, an elastic member 1 is fixedly connected to the bottom of the extension seat, a vibration seat is fixedly connected to the bottom of the elastic member 1, a vibration motor is fixedly installed on the top of the vibration seat, a movable connecting member No. 1 is fixedly installed on the bottom of the vibration seat, a first screen frame is fixedly installed on the end of the movable connecting member No. 1 away from the vibration seat, an extension table is fixedly installed on the outer wall of the first screen frame, a No. 2 movable connecting member is fixedly installed on the bottom of the extension table, a second screen frame is fixedly installed on the end of the movable connecting member No. 2 away from the extension table, stainless steel screens are fixedly installed on the inner walls of the first and second screen frames, and the stainless steel screens are designed in two specifications to complete the screening of medicinal particles.

[0010] The drying processing unit includes a pre-processing frame, which is fixedly installed on the top of the elevated workbench. An inclined plate is fixedly installed on the bottom of the inner wall of the pre-processing frame, a triangular guide protrusion and an arc-shaped guide protrusion are fixedly installed on the top of the inclined plate, and a guide block is fixedly installed on the top of the inclined plate.

[0011] A further improvement of the technical solution of the present invention is that the second movable connecting part includes a positioning frame, an iron alloy block is fixedly installed on the inner wall of the positioning frame, a plug-in block is movably plugged into the bottom of the positioning frame, an electromagnet is fixedly installed on the inner wall of the plug-in block, the top of the electromagnet is movably connected to the bottom of the ferroalloy block, and a connecting frame is fixedly installed on the bottom of the plug-in block. After the electromagnet is energized, it can be magnetically connected to the ferroalloy block, which is convenient for users to disassemble and assemble the first screen frame or the second screen frame.

[0012] A further improvement of the technical solution of the present invention is that a hollow bar tube is fixedly installed on the top of the inclined plate, a uniform wind mesh plate is fixedly installed on the inner wall of the hollow bar tube, and an air inlet pipe is fixedly connected to the top of the hollow bar tube. The uniform wind mesh plate can make the heat dissipation air blow evenly onto the surface of the medicine particles.

[0013] A further improvement of the technical solution of the present invention is that the buffer receiving unit includes an inclined receiving plate, the bottom of the inclined receiving plate is fixedly connected with an elastic member 2, the bottom of the elastic member 2 is fixedly connected to the bottom of the inner wall of the pretreatment frame, a sliding block is fixedly installed on the left side of the inclined receiving plate, a smooth column is slidably connected to the inner wall of the sliding block, and the elastic member 2 can produce elastic deformation to provide buffering protection for fallen medicine particles.

[0014] A further improvement of the technical solution of the present invention is that the smooth column is fixedly installed at the bottom of the inner wall of the pretreatment frame, the top of the inclined receiving plate is fixedly connected with an airbag strip, and the top of the airbag strip is fixedly connected with an airbag block. Through the design of the airbag strip and the airbag block, the branch falling protection of the medicine particles can be achieved.

[0015] A further improvement of the technical solution of the present invention is that the waste heat recovery unit includes a support rod, which is fixedly installed on the back of the pretreatment frame, and a hollow intake pipe is fixedly installed on one end of the support rod away from the pretreatment frame, and a suction fan is fixedly connected to the top of the hollow intake pipe, and a soft air pipe is fixedly connected to the top of the suction fan. Through the design of the suction fan and the hollow intake pipe, the absorption and treatment of the hot exhaust gas can be completed.

[0016] A further improvement of the technical solution of the present invention is that the waste heat recovery unit also includes a supporting leg, which is movably connected to the top of the elevated workbench, and a hollow disk 2 is fixedly installed on the top of the supporting leg, and a sealing connection cover is fixedly installed on the top of the hollow disk 2, and a hollow disk 1 is fixedly installed on the top of the sealing connection cover, and a water change valve pipe is fixedly connected to the outer wall of the sealing connection cover, and the end of the soft air pipe away from the suction fan is fixedly connected to the top of the hollow disk 1, and a heat exchange square tube is fixedly connected between the adjacent sides of the hollow disk 1 and the hollow disk 2, and the bottom of the hollow disk 2 is fixedly connected to an exhaust gas exhaust pipe. Through the design of the heat exchange square tube, heat exchange can be carried out between hot exhaust gas and cold water.

[0017] A further improvement of the technical solution of the present invention lies in that: a graphene heat exchange patch is fixedly installed on the inner wall of the heat exchange square tube, a graphite protrusion located in the inner cavity of the heat exchange square tube is fixedly connected to the outer wall of the graphene heat exchange patch, a through hole is opened on the top of the graphite protrusion, a heat exchange fin is fixedly connected to the outer wall of the graphite protrusion, a baffle strip is fixedly connected to the inner wall of the heat exchange square tube, and a baffle plate is fixedly connected to the end of the baffle strip away from the inner wall of the heat exchange square tube. The heat exchange rate of the heat exchange square tube can be improved by the design of the graphene heat exchange patch and the graphite protrusion.

[0018] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0019] 1. The present invention provides a bulk drug granulating device with multi-layer classification and screening. Through the design of the elastic member 1, the first screen frame is elastically connected to the bottom of the extension seat as a whole. Through the design of the vibration motor, the first screen frame can be driven as a whole to perform strong vibration. Then, the upper stainless steel screen can screen the larger particles inside the material in the inner cavity of the first screen frame, and the lower stainless steel screen can screen the smaller particles inside the material from the bottom of the second screen frame, thereby avoiding the problem that larger particles or smaller particles will affect the average quality of subsequent pharmaceutical preparations, thereby improving the production quality of drugs.

[0020] 2. The present invention provides a raw material medicine granulating device with multi-layer classification and screening. The inclined design of the top surface of the inclined plate allows the medicine particles to roll on the top of the inclined plate under the action of gravity. At the same time, the user can transport hot air from the air inlet pipe to the inner cavity of the hollow strip tube, and the hot air is then sprayed from the uniform wind mesh plate to the surface of the medicine particles, thereby realizing the function of drying the medicine particles, avoiding the problem of high moisture content and easy deformation of the medicine particles during the screening process, thereby ensuring the safety of the screening. In addition, through the design of the guide block, the rolling medicine particles can be guided to the arc-shaped guide protrusion or the triangular guide protrusion. Through the design of the top surface of the arc-shaped guide protrusion or the triangular guide protrusion, the medicine particles can be obliquely guided, and the medicine particles then move in the air in a parabolic path, further improving the adequacy of the structure in drying the medicine particles.

[0021] 3. The present invention provides a raw material medicine granulation device with multi-layer classification and screening. The design of the smooth column can limit the vertical movement of the inclined receiving plate. When the inclined receiving plate moves vertically, the elastic member 2 can be compressed to make it produce elastic deformation, that is, the function of buffering the force exerted on the medicine pellets when they fall to the top of the inclined receiving plate is realized, thereby avoiding the problem of large deformation of the medicine pellets when they fall onto the inclined receiving plate, and ensuring the shape of the medicine pellets. At the same time, both the airbag strips and the airbag blocks can produce elastic deformation, and the medicine pellets can be branched and buffered to further ensure the quality of the medicine pellets.

[0022] 4. The present invention provides a raw material drug granulating device with multi-layer classification and screening. Through the design of the suction fan, it can absorb air from the bottom of the hollow suction pipe after work to complete the absorption treatment of the hot exhaust gas. The hot exhaust gas will then flow through the inner cavity of the heat exchange square tube. Through the design of the water exchange valve tube, the user can inject cold water into the inner cavity of the sealed connection cover. The cold water and the hot exhaust gas will exchange heat through the heat exchange square tube as a whole to complete the heating treatment of the cold water, that is, to realize the function of recovering the heat inside the hot exhaust gas, reduce the waste of heat energy, and thereby improve the environmental protection of the present structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the first screen frame of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the second movable connecting member of the present invention;

[0026] Figure 4 It is a schematic diagram of the cutaway structure of the pretreatment frame of the present invention;

[0027] Figure 5 It is an enlarged schematic diagram of structure A of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the inclined receiving plate of the present invention;

[0029] Figure 7 It is an enlarged schematic diagram of structure B of the present invention;

[0030] Figure 8 It is a schematic diagram of the cutaway structure of the sealing connection cover of the present invention;

[0031] Fig. 9 It is a schematic diagram of the partially cut-away structure of the heat exchange square tube of the present invention.

[0032] In the figure: 1. Elevated workbench; 11. Support arm; 12. Granulator body;

[0033] 2. Auxiliary granulation mechanism; 21. Transfer material frame; 211. Extension seat; 212. Elastic member 1; 213. Vibration seat; 214. Vibration motor; 215. No. 1 movable connecting piece; 216. First screen frame; 217. Extension table; 218. No. 2 movable connecting piece; 2181. Positioning frame; 2182. Ferroalloy block; 2183. Plug-in block; 2184. Electromagnet; 2185. Connecting frame; 219. Second screen frame; 2191. Stainless steel screen;

[0034] 22. pre-treatment frame; 221. inclined plate; 2211. triangular guide protrusion; 2212. arc-shaped guide protrusion; 2213. guide block; 222. hollow strip tube; 223. uniform air mesh plate; 224. air intake pipe;

[0035] 23. inclined receiving plate; 231. elastic member 2; 232. sliding block; 233. smooth column; 234. airbag strip; 235. airbag block;

[0036] 24. Support rod; 241. Hollow air intake pipe; 242. Suction fan; 243. Soft air pipe; 244. Hollow disk one; 245. Hollow disk two; 246. Sealing connection cover; 247. Water exchange valve pipe; 248. Heat exchange square tube; 2481. Baffle strip; 2482. Baffle plate; 2483. Graphene heat exchange patch; 2484. Graphite protrusion; 2485. Through hole; 2486. Heat exchange fin; 249. Support leg. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below in conjunction with embodiments: Example 1

[0038] like Figure 1-9As shown, the present invention provides a bulk drug granulating device with multi-layer classification and screening, including an elevated workbench 1 and a granulator body 12, a support arm 11 is fixedly installed on the outer wall of the elevated workbench 1, the granulator body 12 is fixedly installed on the inner wall of the support arm 11, and an auxiliary granulating mechanism 2 is arranged on the top and bottom of the elevated workbench 1. The auxiliary granulating mechanism 2 includes a multi-layer screening unit, a drying processing unit, a buffer receiving unit and a waste heat recovery unit. The multi-layer screening unit includes a transfer frame 21, the transfer frame 21 is fixedly connected to the bottom of the elevated workbench 1, and an extension seat 211 is fixedly installed on the outer wall of the transfer frame 21. The extension seat 211 The bottom of the elastic member 212 is fixedly connected, the bottom of the elastic member 212 is fixedly connected to a vibration seat 213, the top of the vibration seat 213 is fixedly installed with a vibration motor 214, the bottom of the vibration seat 213 is fixedly installed with a No. 1 movable connecting member 215, the end of the No. 1 movable connecting member 215 away from the vibration seat 213 is fixedly installed with a first screen frame 216, an extension table 217 is fixedly installed on the outer wall of the first screen frame 216, the bottom of the extension table 217 is fixedly installed with a No. 2 movable connecting member 218, the end of the No. 2 movable connecting member 218 away from the extension table 217 is fixedly installed with a second screen frame 219, the first screen frame 216 and the second screen frame A stainless steel screen 2191 is fixedly installed on the inner wall of 219, and the second movable connecting member 218 includes a positioning frame 2181, an iron alloy block 2182 is fixedly installed on the inner wall of the positioning frame 2181, a plug-in block 2183 is movably plugged into the bottom of the positioning frame 2181, and an electromagnet 2184 is fixedly installed on the inner wall of the plug-in block 2183. The top of the electromagnet 2184 is movably connected to the bottom of the iron alloy block 2182, and a connecting frame 2185 is fixedly installed on the bottom of the plug-in block 2183. Due to the design of the elastic member 212, the first screen frame 216 is elastically connected to the bottom of the expansion seat 211 as a whole, and the user can control the vibration motor 2 14 works, driving the first screen frame 216 as a whole to perform strong vibration work, so that the upper stainless steel screen 2191 can screen the larger particles inside the material into the inner cavity of the first screen frame 216, and the lower stainless steel screen 2191 can screen the smaller particles inside the material from the bottom of the second screen frame 219, thereby avoiding the problem that larger particles or smaller particles will affect the subsequent pharmaceutical uniformity. The electromagnet 2184 can generate magnetic force after being energized, and is adsorbed and connected to the bottom of the ferroalloy block 2182, thereby completing the function of positioning the connecting frame 2185. This design makes it easy for users to disassemble and maintain the second screen frame 219 or the first screen frame 216. Example 2

[0039] like Figure 1-9As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the drying processing unit includes a pre-processing frame 22, the pre-processing frame 22 is fixedly installed on the top of the elevated workbench 1, the bottom of the inner wall of the pre-processing frame 22 is fixedly installed with an inclined plate 221, the top of the inclined plate 221 is fixedly installed with a triangular guide protrusion 2211 and an arc-shaped guide protrusion 2212, the top of the inclined plate 221 is fixedly installed with a guide block 2213, the top of the inclined plate 221 is fixedly installed with a hollow strip tube 222, the inner wall of the hollow strip tube 222 is fixedly installed with a uniform wind mesh plate 223, and the top of the hollow strip tube 222 is fixedly connected with an air intake pipe 224, The medicine particles will roll from the top of the inclined plate 221 under the action of gravity. The user can pre-connect the working pipe of the external hot air blower to the air inlet pipe 224 to control the operation of the external hot air blower. The hot air will then be sprayed from the uniform wind mesh plate 223 to the surface of the medicine particles, thereby achieving the function of drying the medicine particles. Through the design of the guide block 2213, the rolling medicine particles can be guided to the arc-shaped guide protrusion 2212 or the triangular guide protrusion 2211. Through the design of the top surface of the arc-shaped guide protrusion 2212 or the triangular guide protrusion 2211, the medicine particles can be guided obliquely upward, and the medicine particles then move in the air in a parabolic path, further improving the adequacy of the structure in drying the medicine particles. Example 3

[0040] like Figure 1-9 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the buffer receiving unit includes an inclined receiving plate 23, the bottom of the inclined receiving plate 23 is fixedly connected with an elastic member 231, the bottom of the elastic member 231 is fixedly connected to the bottom of the inner wall of the pre-processing frame 22, a sliding block 232 is fixedly installed on the left side of the inclined receiving plate 23, a smooth column 233 is slidably connected on the inner wall of the sliding block 232, the smooth column 233 is fixedly installed on the bottom of the inner wall of the pre-processing frame 22, and the top of the inclined receiving plate 23 is fixedly connected with an airbag strip 234, the top of the airbag strip 234 is fixedly connected with an airbag block 235, and the smooth column 233 can limit the vertical movement of the inclined receiving plate 23. When the medicine pellets fall to the top of the inclined receiving plate 23, the inclined receiving plate 23 will move vertically downward, compressing the elastic member 231 to make it produce elastic deformation, thereby achieving the function of buffering the force exerted on the medicine pellets when they fall to the top of the inclined receiving plate 23, thereby ensuring the shape of the medicine pellets. Both the airbag strip 234 and the airbag block 235 can produce elastic deformation, and can perform branch buffering treatment on the medicine pellets, thereby further ensuring the quality of the medicine pellets. Example 4

[0041] like Figure 1-9As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the waste heat recovery unit includes a support rod 24, the support rod 24 is fixedly installed on the back of the pretreatment frame 22, and a hollow suction pipe 241 is fixedly installed at one end of the support rod 24 away from the pretreatment frame 22, and a suction fan 242 is fixedly connected to the top of the hollow suction pipe 241, and a soft air pipe 243 is fixedly connected to the top of the suction fan 242. The waste heat recovery unit also includes a support leg 249, and the support leg 249 is movably connected to the top of the elevated workbench 1, and a hollow plate 245 is fixedly installed on the top of the support leg 249, and a sealing connection is fixedly installed on the top of the hollow plate 245. The cover 246 is sealed and connected to the top of the cover 246, and a hollow plate 244 is fixedly installed. The outer wall of the sealed connection cover 246 is fixedly connected to a water exchange valve pipe 247. The end of the soft air pipe 243 away from the suction fan 242 is fixedly connected to the top of the hollow plate 244. A heat exchange square tube 248 is fixedly connected between the adjacent sides of the hollow plate 244 and the hollow plate 245. The bottom of the hollow plate 245 is fixedly connected to an exhaust gas exhaust pipe. A graphene heat exchange patch 2483 is fixedly installed on the inner wall of the heat exchange square tube 248. A graphite protrusion 2484 located in the inner cavity of the heat exchange square tube 248 is fixedly connected to the outer wall of the graphene heat exchange patch 2483. The graphite protrusion 2484 is fixedly connected to the outer wall of the graphene heat exchange patch 2483. A through hole 2485 is provided on the top of 484, a heat exchange fin 2486 is fixedly connected to the outer wall of the graphite protrusion 2484, a baffle 2481 is fixedly connected to the inner wall of the heat exchange square tube 248, and a baffle plate 2482 is fixedly connected to the end of the baffle 2481 away from the inner wall of the heat exchange square tube 248. During the drying process, the user can control the suction fan 242 to absorb air from the bottom of the hollow suction pipe 241 to absorb the hot exhaust gas, and the hot exhaust gas will then flow through the inner cavity of the heat exchange square tube 248. Through the design of the water exchange valve tube 247, the user can inject cold water into the inner cavity of the sealed connection cover 246, and the cold water and the hot exhaust gas will pass through the heat exchange square tube. The tube 248 as a whole exchanges heat to complete the heating treatment of the cold water and realize the function of heat recovery. Through the coordinated design of the graphite protrusions 2484, the through holes 2485 and the heat exchange fins 2486, the heat inside the hot exhaust gas can be quickly absorbed and processed, and then transferred to the graphene heat exchange patch 2483. The graphene heat exchange patch 2483 then transfers the heat to the heat exchange square tube 248, thereby improving the heat exchange rate of the heat exchange square tube 248. Through the coordination of the baffle strip 2481 and the baffle plate 2482, the hot exhaust gas can be baffled to increase the flow rate of the hot exhaust gas on the surface of the graphite protrusion 2484, thereby further improving the heat exchange rate of the heat exchange square tube 248.

[0042] The working principle of the bulk drug granulating device with multi-layer classification and screening is described in detail below.

[0043] like Figure 1-9As shown, first, the raw materials are added into the inner cavity of the granulator body 12, and the granulator body 12 is controlled to work to realize the granulation function, and the medicine particles fall naturally, and the inclined receiving plate 23 completes the buffering and receiving processing of the medicine particles as a whole, and the medicine particles will then slide on the top of the inclined plate 221. The user can pre-connect the working pipe of the external hot air blower to the air inlet pipe 224, and control the operation of the external hot air blower to output hot air from the uniform air mesh plate 223 to complete the drying process of the medicine particles, and the medicine particles will then fall on the stainless steel screen 2191, and the user can control the vibration motor 214 to work, drive the stainless steel screen 2191 to vibrate strongly, and complete the screening process of the medicine particles.

[0044] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A bulk drug granulating device with multi-layer classification and screening, comprising an elevated workbench (1) and a granulator body (12), characterized in that: A support arm (11) is fixedly mounted on the outer wall of the elevated workbench (1), the granulator body (12) is fixedly mounted on the inner wall of the support arm (11), and auxiliary granulation mechanisms (2) are arranged on the top and bottom of the elevated workbench (1); The auxiliary granulation mechanism (2) comprises a multi-layer screening unit, a drying processing unit, a buffer receiving unit and a waste heat recovery unit; The multi-layer screening unit comprises a transfer material frame (21), the transfer material frame (21) is fixedly connected to the bottom of the elevated workbench (1), an extension seat (211) is fixedly installed on the outer wall of the transfer material frame (21), the bottom of the extension seat (211) is fixedly connected to an elastic member 1 (212), the bottom of the elastic member 1 (212) is fixedly connected to a vibration seat (213), the top of the vibration seat (213) is fixedly installed with a vibration motor (214), and the bottom of the vibration seat (213) is fixedly installed with a movable connecting member No. 1 (215). A first screen frame (216) is fixedly mounted on one end of the first movable connecting member (215) away from the vibration seat (213); an extension table (217) is fixedly mounted on the outer wall of the first screen frame (216); a second movable connecting member (218) is fixedly mounted on the bottom of the extension table (217); a second screen frame (219) is fixedly mounted on one end of the second movable connecting member (218) away from the extension table (217); and stainless steel screens (2191) are fixedly mounted on the inner walls of the first screen frame (216) and the second screen frame (219); The drying processing unit comprises a pre-processing frame (22), the pre-processing frame (22) being fixedly mounted on the top of the elevated workbench (1), an inclined plate (221) being fixedly mounted on the bottom of the inner wall of the pre-processing frame (22), a triangular guide protrusion (2211) and an arc-shaped guide protrusion (2212) being fixedly mounted on the top of the inclined plate (221), and a guide block (2213) being fixedly mounted on the top of the inclined plate (221); The buffer receiving unit comprises an inclined receiving plate (23), the bottom of the inclined receiving plate (23) is fixedly connected to an elastic member 2 (231), the bottom of the elastic member 2 (231) is fixedly connected to the bottom of the inner wall of the pre-processing frame (22), a sliding block (232) is fixedly installed on the left side of the inclined receiving plate (23), a smooth column (233) is slidably connected to the inner wall of the sliding block (232), the smooth column (233) is fixedly installed on the bottom of the inner wall of the pre-processing frame (22), the top of the inclined receiving plate (23) is fixedly connected to an airbag strip (234), the top of the airbag strip (234) is fixedly connected to The waste heat recovery unit is connected to an air bag block (235), the waste heat recovery unit comprises a support rod (24), the support rod (24) is fixedly mounted on the back of the pretreatment frame (22), a hollow suction pipe (241) is fixedly mounted on one end of the support rod (24) away from the pretreatment frame (22), the top of the hollow suction pipe (241) is fixedly connected to a suction fan (242), the top of the suction fan (242) is fixedly connected to a soft air pipe (243), and the waste heat recovery unit also comprises a support leg (249), the support leg (249) is movably connected to the top of the elevated workbench (1), and the top of the support leg (249) is fixedly A hollow plate 2 (245) is installed, a sealing connection cover (246) is fixedly installed on the top of the hollow plate 2 (245), a hollow plate 1 (244) is fixedly installed on the top of the sealing connection cover (246), a water exchange valve pipe (247) is fixedly connected to the outer wall of the sealing connection cover (246), one end of the soft air pipe (243) away from the suction fan (242) is fixedly connected to the top of the hollow plate 1 (244), a heat exchange square pipe (248) is fixedly connected between the adjacent sides of the hollow plate 1 (244) and the hollow plate 2 (245), and an exhaust gas exhaust pipe is fixedly connected to the bottom of the hollow plate 2 (245). A graphene heat exchange patch (2483) is fixedly mounted on the inner wall of the heat exchange square tube (248); a graphite protrusion (2484) located in the inner cavity of the heat exchange square tube (248) is fixedly connected to the outer wall of the graphene heat exchange patch (2483); a through hole (2485) is provided at the top of the graphite protrusion (2484); a heat exchange fin (2486) is fixedly connected to the outer wall of the graphite protrusion (2484); a baffle strip (2481) is fixedly connected to the inner wall of the heat exchange square tube (248); and a baffle plate (2482) is fixedly connected to one end of the baffle strip (2481) away from the inner wall of the heat exchange square tube (248).

2. The bulk drug granulating device with multi-layer classification and screening according to claim 1, characterized in that: The second movable connecting member (218) comprises a positioning frame (2181), an iron alloy block (2182) is fixedly mounted on the inner wall of the positioning frame (2181), a plug-in block (2183) is movably plugged into the bottom of the positioning frame (2181), an electromagnet (2184) is fixedly mounted on the inner wall of the plug-in block (2183), the top of the electromagnet (2184) is movably connected to the bottom of the iron alloy block (2182), and a connecting frame (2185) is fixedly mounted on the bottom of the plug-in block (2183).

3. The bulk drug granulating device with multi-layer classification and screening according to claim 1, characterized in that: A hollow bar tube (222) is fixedly mounted on the top of the inclined plate (221), an air uniforming mesh plate (223) is fixedly mounted on the inner wall of the hollow bar tube (222), and an air intake pipe (224) is fixedly connected to the top of the hollow bar tube (222).

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