Glass bead production raw material drying device

Abstract

The utility model relates to a glass bead production raw material drying device. Comprising a mounting rack, a drying operation box is mounted on the mounting rack, and an upper mesh belt transmission line and a lower mesh belt transmission line are arranged in the drying operation box in a penetrating manner; an upper air distribution box, a middle air distribution box and a lower air distribution box are arranged in the drying operation box, the upper air distribution box and the middle air distribution box are located above and below the upper mesh belt transmission line respectively, and the lower air distribution box is located above the lower mesh belt transmission line; air holes are formed in the bottom surfaces of the lower air distribution box and the upper air distribution box and the top surface of the middle air distribution box; a rear air supply box structure and a front air supply box structure are arranged on the drying operation box, a lower air inlet flat pipe is connected between the rear air supply box structure and the lower air distribution box, an upper air inlet flat pipe is connected between the front air supply box structure and the upper air distribution box, and a middle air inlet flat pipe is connected between the front air supply box structure and the middle air distribution box. Air inducing assemblies are arranged in the front air supply box structure and the rear air supply box structure; and a plurality of groups of material turning assemblies are further included. According to the drying device, materials can be continuously dried without shutdown, the materials are continuously turned over in the drying process, the drying efficiency of the materials is improved, the drying effect is good, and the large-scale production and processing requirements can be met.

Description

Technical Field

[0001] This utility model belongs to the field of drying equipment technology, and in particular relates to a drying device for raw materials for glass microsphere production. Background Technology

[0002] Glass microspheres refer to solid or hollow glass beads with diameters ranging from a few micrometers to a few millimeters, and can be colorless or colored. Those with a diameter of 0.8 mm or more are called fine beads; those with a diameter of less than 0.8 mm are called microspheres. They are characterized by transparency, adjustable refractive index, directional retroreflection, smooth surface, good fluidity, electrical insulation, stable chemical properties, high heat resistance, and high mechanical strength.

[0003] High-strength solid microspheres are mainly used as grinding media, abrasive materials for machining, and reinforcing fillers. Reflective solid microspheres are mainly used in traffic signs, art and advertising, marine lifesaving equipment, performance costumes, and directional projection screens. Hollow microspheres are mainly used in solid buoyancy materials, cryogenic insulation materials, engineering plastics, and solid rocket fuel fillers. They are widely used in light industry, chemical industry, textile industry, transportation, shipping, and precision machining industries. The production process of glass microspheres is mainly the powder method, which involves first mixing the raw materials evenly and then melting them in a melting furnace. The melt is then fed into a circulating water tank to form water-quenched glass microspheres. The surface moisture of the water-quenched glass microspheres is then dried. After drying, the microspheres are crushed and graded before being sent to a spheroidizing furnace. Under the action of their own surface tension, they are spheroidized. After spheroidization, they need to be bleached to obtain the finished product.

[0004] In the production process, to improve work efficiency, it is necessary to use a drying device to dry the water-quenched glass microspheres. However, the existing drying devices have a relatively simple structure, the drying effect is not ideal, and they cannot continuously dry the materials without stopping the machine. They require stopping the machine to load and unload materials, resulting in low drying efficiency and making it difficult to achieve large-scale production. Therefore, it is urgent to design a drying device for raw materials in glass microsphere production to solve the above problems. Utility Model Content

[0005] This invention provides a reasonably structured drying device for raw materials used in the production of glass microspheres, addressing technical problems existing in prior art. This invention allows for continuous, uninterrupted drying of materials, with continuous turning during the drying process, improving drying efficiency and achieving excellent drying results, thus meeting the needs of large-scale production and processing.

[0006] The technical solution adopted by this utility model to solve the technical problems existing in the prior art is as follows: A drying device for raw materials for glass microsphere production includes a mounting frame, on which a drying operation box is mounted. A top mesh belt conveyor and a bottom mesh belt conveyor are horizontally arranged inside the drying operation box, with the discharge end of the top mesh belt conveyor located above the feed end of the bottom mesh belt conveyor. An upper air box, a middle air box, and a lower air box are arranged vertically within the drying operation box. The upper and middle air boxes are located above and below the transmission surface of the top mesh belt conveyor, respectively, while the lower air box is located above the transmission surface of the bottom mesh belt conveyor. Several ventilation openings are provided on the bottom surfaces of the lower and upper air boxes, and on the top surface of the middle air box. The drying operation box includes a rear air supply box structure and a front air supply box structure connected to the drying air source at the top. A lower air inlet flat pipe penetrating the top of the drying operation box connects the rear air supply box structure and the lower air distribution box. An upper air inlet flat pipe penetrating the top of the drying operation box connects the front air supply box structure and the upper air distribution box. A middle air inlet flat pipe penetrating the top of the drying operation box connects the front air supply box structure and the middle air distribution box. Both the front and rear air supply box structures are equipped with air-guiding components that blow drying gas into each air inlet pipe. An air outlet is provided at the top of the drying operation box. The box also includes multiple sets of material turning components for turning over the materials on the conveyor surfaces of the upper and lower mesh belt conveyors.

[0007] The advantages and positive effects of this utility model are as follows: This utility model provides a drying device for raw materials in the production of glass microspheres. Through the upper and lower mesh belt conveyors, respectively, materials falling from the feed hopper can be received and transported to the drying chamber for drying, increasing the drying time within the chamber. Simultaneously, feeding and unloading operations can be performed on the same side without stopping the machine. Through the provided air supply box structure, air duct assembly, and air inlet flat pipe, hot air for drying can be injected into the upper, middle, and lower air distribution boxes. The hot air is blown through several vents on the bottom surface of the upper air distribution box and the top surface of the middle air distribution box. Hot air is blown down onto the conveyor surface of the mesh belt conveyor through several vents on the bottom of the lower air distribution box. Since the material conveyed on the upper mesh belt conveyor has higher humidity, the upper and middle air distribution boxes simultaneously blow hot air onto the material on the mesh belt conveyor, accelerating the drying speed. This also allows for uniform air distribution, ensuring that hot air is evenly distributed across the conveyor surface of the mesh belt, avoiding concentrated hot air blowing and saving energy. A turning component allows the material on the mesh belt conveyor to be turned over, increasing the contact area between the material and the hot air, preventing material accumulation that could affect the drying effect and efficiency. This invention allows for continuous, uninterrupted drying of materials, with continuous turning during the drying process, improving drying efficiency and achieving good drying results, meeting the needs of large-scale production and processing.

[0008] Preferably, the rear air supply box structure includes an outer protective box fixed to the top of the drying operation box, an inner buffer box is provided inside the outer protective box, and an air inlet that penetrates the outer protective box is connected to the inner buffer box; the structure of the front air supply box structure is the same as that of the rear air supply box structure.

[0009] Preferably, the air intake assembly includes a downward-facing arc-shaped air guide plate disposed inside the corresponding air intake flat pipe, an impeller shaft that transversely penetrates the air intake flat pipe and the air supply box structure disposed inside the arc-shaped air guide plate, an impeller located inside the arc-shaped air guide plate is installed at the inner end of the impeller shaft, and also includes an air intake transmission pair and an air intake motor for driving the impeller shaft to rotate.

[0010] Preferably, the material turning assembly includes a lower turning shaft and an upper turning shaft that pass through and are rotatably connected to the drying operation box. The lower turning shaft is located above the lower conveyor belt and spans its transmission surface, while the upper turning shaft is located above the upper conveyor belt and spans its transmission surface. A turning and stirring mechanism is installed on both the lower and upper turning shafts. A turning transmission pair is installed between the lower and upper turning shafts. The assembly also includes a turning motor installed on the drying operation box, and a turning drive pair is installed between the turning motor and the upper turning shaft.

[0011] Preferably, the material turning and stirring mechanism includes a stirring shaft sleeve installed on a corresponding material turning shaft, and multiple sets of spirally distributed support arm connectors are fixedly connected to the outer peripheral wall of the stirring shaft sleeve. A stirring support arm can be detachably installed on each support arm connector, and a stirring blade can be detachably connected to the outer end of each stirring support arm.

[0012] Preferably, it further includes an air outlet box installed on the top of the drying operation box, the air outlet box being connected to an air outlet opened on the top of the drying operation box, an exhaust port being provided on the top of the air outlet box and an axial flow fan being installed at the exhaust port; it also includes a finned heat exchanger installed inside the air outlet box.

[0013] Preferably, a feed hopper is installed on the drying operation box above the feed end of the upper mesh belt conveyor; a guide hopper is installed on the drying operation box covering the discharge end of the upper mesh belt conveyor to guide the material to the feed end of the lower mesh belt conveyor; baffles extending along the conveying direction are installed on the supports of both the upper and lower mesh belt conveyors. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the main body of this utility model;

[0016] Figure 3 yes Figure 2 A schematic diagram of the AA cross-sectional structure in the diagram;

[0017] Figure 4 yes Figure 2 Schematic diagram of the BB cross-sectional structure in the middle;

[0018] Figure 5 This is a three-dimensional structural diagram of the material turning component in this utility model.

[0019] In the diagram: 1. Lower air distribution box; 2. Middle air distribution box; 3. Upper air distribution box; 4. Lower air inlet flat pipe; 5. Rear air supply box structure; 5-1. Air inlet; 5-2. Outer protective box; 5-3. Inner buffer box; 6. Exhaust fan assembly; 6-1. Motor bracket; 6-2. Exhaust fan transmission pair; 6-3. Exhaust fan motor; 6-4. Impeller shaft; 6-5. Impeller; 6-6. Arc-shaped air guide plate; 7. Air outlet box; 8. Front air supply box structure; 9. Upper air inlet flat pipe; 10. Middle air inlet flat pipe; 11. Feed hopper 12. Top mesh conveyor cable; 13. Drying operation box; 14. Bottom mesh conveyor cable; 15. Mounting frame; 16. Tilting assembly; 16-1. Bottom tilting shaft; 16-2. Tilting transmission pair; 16-3. Top tilting shaft; 16-4. Tilting drive pair; 16-5. Tilting motor; 16-6. Tilting and mixing mechanism; 16-6-1. Mixing shaft sleeve; 16-6-2. Support arm connector; 16-6-3. Mixing support arm; 16-6-4. Mixing blade; 17. Guide hopper. Detailed Implementation

[0020] To further understand the invention content, features, and effects of this utility model, the following embodiments are provided in detail:

[0021] Please see Figure 1 The glass microsphere production raw material drying device of this utility model includes a mounting frame 15, with several support legs and universal casters installed at the bottom of the mounting frame 15. A drying operation box 13 is installed on the mounting frame 15, and an inspection window is provided on the side wall of the drying operation box 13. The inspection window is pivotally connected to the drying operation box 13 by a hinge and locked to the drying operation box 13 by a latch.

[0022] A top mesh belt conveyor line 12 and a bottom mesh belt conveyor line 14 are horizontally arranged inside the drying operation box 13, with the discharge end of the top mesh belt conveyor line 12 located above the feed end of the bottom mesh belt conveyor line 14. A feed hopper 11 is installed on the drying operation box 13, located above the feed end of the top mesh belt conveyor line 12. A guide hopper 17 is installed on the drying operation box 13, covering the discharge end of the top mesh belt conveyor line 12 to guide the material to the feed end of the bottom mesh belt conveyor line 14. Baffles extending along the conveying direction are installed on the supports of both the top mesh belt conveyor line 12 and the bottom mesh belt conveyor line 14. A viewing window is provided on the guide hopper 17 for observing the drying process of the material.

[0023] In addition, the drying operation box 13 is provided with an upper air box 3, a middle air box 2 and a lower air box 1 arranged vertically. The upper air box 3 and the middle air box 2 are located above and below the transmission surface of the net belt transmission line 12, respectively, and the lower air box 1 is located above the transmission surface of the lower net belt transmission line 14. Several ventilation holes are provided on the bottom surface of the lower air box 1 and the upper air box 3 and on the top surface of the middle air box 2.

[0024] like Figure 1 and Figure 2 As shown, a rear air supply box structure 5 and a front air supply box structure 8 connected to the drying air source are provided on the top of the drying operation box 13. A lower air inlet flat pipe 4 penetrating the top of the drying operation box 13 is connected between the rear air supply box structure 5 and the lower air distribution box 1. An upper air inlet flat pipe 9 penetrating the top of the drying operation box 13 is connected between the front air supply box structure 8 and the upper air distribution box 3. A middle air inlet flat pipe 10 penetrating the top of the drying operation box 13 is connected between the front air supply box structure 8 and the middle air distribution box 2. Inside the rear air supply box structure 5 and the front air supply box structure 8... Each unit is equipped with an air-expelling assembly 6 that blows drying gas into each air inlet pipe; an air outlet is provided on the top of the drying operation box 13; an air outlet box 7 is also installed on the top of the drying operation box 13, which is connected to the air outlet on the top of the drying operation box 13, and an exhaust port is provided on the top of the air outlet box 7, with an axial flow fan installed at the exhaust port; a finned heat exchanger is also included in the air outlet box 7 to recover waste heat from the hot air flowing into the air outlet box 7, avoiding the direct discharge of hot and humid air into the air and causing resource waste.

[0025] like Figure 2 and Figure 3 As shown, the aforementioned rear air supply box structure 5 includes an outer protective box 5-2 fixed to the top of the drying operation box 13. An inner buffer box 5-3 is provided inside the outer protective box 5-2, and an air inlet 5-1 that penetrates the outer protective box 5-2 is connected to the inner buffer box 5-3. The air inlet 5-1 is connected to a heat source through a gas pipeline and a fan. The structure of the front air supply box structure 8 is the same as that of the rear air supply box structure 5.

[0026] like Figure 2 , Figure 3 and Figure 4 As shown, the aforementioned air-expelling assembly 6 includes a downward-facing arc-shaped air guide plate 6-6 disposed within the corresponding air inlet flat pipe. An impeller shaft 6-4, transversely penetrating the air inlet flat pipe and the air supply box structure, is disposed within the arc-shaped air guide plate 6-6. An impeller 6-5, located within the arc-shaped air guide plate 6-6, is mounted at the inner end of the impeller shaft 6-4. The assembly also includes an air-expelling transmission pair 6-2 and an air-expelling motor 6-3 for driving the impeller shaft 6-4 to rotate. A motor bracket 6-1 is mounted on the corresponding air supply box structure, and the air-expelling motor 6-3 is mounted on the corresponding motor bracket 6-1. The aforementioned air-expelling transmission pair 6-2 includes a driving pulley keyed to the output shaft of the air-expelling motor 6-3 and a driven pulley keyed to the outer end of the impeller shaft 6-4. A belt drives between the driving pulley and the driven pulley.

[0027] During the drying process, hot air for drying enters the inner buffer box through the air inlets in the rear air supply box structure 5 and the front air supply box structure 8. Then, under the action of the corresponding air duct components 6, the hot air is guided into the corresponding air inlet flat pipes, and then into the inner cavities of the upper fabric air box 3, the middle fabric air box 2, and the lower fabric air box 1. The hot air is blown onto the conveying surface of the mesh conveyor belt 12 through several vents on the bottom surface of the upper fabric air box 3 and the top surface of the middle fabric air box 2, drying the material conveyed on the mesh conveyor belt 12. The hot air is blown onto the conveying surface of the mesh conveyor belt 12 through several vents on the bottom surface of the lower fabric air box 1. The material conveyed on the lower mesh belt conveyor 14 is dried on the conveyor surface of the lower mesh belt conveyor 14. Since the material conveyed on the upper mesh belt conveyor 12 has a relatively high humidity, the present invention is equipped with an upper air box 3 and a middle air box 2 to blow hot air onto the material on the conveyor surface of the upper mesh belt conveyor 12 from above and below, thereby accelerating the drying speed. At the same time, it can perform uniform air distribution, so that the hot air can be blown evenly onto the conveyor surfaces of the upper mesh belt conveyor 12 and the lower mesh belt conveyor 14, avoiding concentrated hot air blowing and saving drying resources.

[0028] In addition, such as Figure 1 As shown, in order to avoid material accumulation affecting drying efficiency, this embodiment also includes multiple sets of material turning components 16 for turning the material on the transmission surfaces of the upper conveyor belt 12 and the lower conveyor belt 14.

[0029] like Figure 5 As shown, the aforementioned material turning assembly 16 includes a lower material turning shaft 16-1 and an upper material turning shaft 16-3 that pass through and are rotatably connected to the drying operation box 13. The lower material turning shaft 16-1 is located above the lower mesh belt conveyor line 14 and spans its conveying surface, while the upper material turning shaft 16-3 is located above the upper mesh belt conveyor line 12 and spans its conveying surface. Material turning and stirring mechanisms 16-6 are installed on both the lower material turning shaft 16-1 and the upper material turning shaft 16-3.

[0030] Structurally, the material-turning and mixing mechanism 16-6 includes a mixing shaft sleeve 16-6-1 mounted on a corresponding material-turning shaft. The mixing shaft sleeve 16-6-1 is fixedly connected to the corresponding material-turning shaft by locking screws. Multiple sets of spirally distributed support arm connectors 16-6-2 are fixedly connected to the outer peripheral wall of the mixing shaft sleeve 16-6-1. A mixing support arm 16-6-3 can be detachably installed on each support arm connector 16-6-2, and a mixing blade 16-6-4 can be detachably connected to the outer end of each mixing support arm 16-6-3. The support arm connectors 16-6-2 and the mixing support arms 16-6-3 are detachably connected by bolts and locking nuts. A strip-shaped hole is provided on the mixing blade 16-6-4, and the mixing blade 16-6-4 and the mixing support arm 16-6-3 are locked together by bolts and locking nuts passing through the strip-shaped hole.

[0031] To drive the lower tilting shaft 16-1 and the upper tilting shaft 16-3 to rotate synchronously, a tilting transmission pair 16-2 is installed between the two shafts. The system also includes a tilting motor 16-5 mounted on the drying control box 13, and a tilting drive pair 16-4 installed between the motor 16-5 and the shaft 16-3. The drive pair 16-4 includes a driving pulley keyed to the output shaft of the motor 16-5 and a driven pulley keyed to the outer end of the upper tilting shaft 16-3. A belt drives the drive pair 16-4 between the driving and driven pulleys. The tilting transmission pair 16-2 includes drive pulleys keyed to the outer ends of both the lower and upper tilting shafts, and a belt drives the drive pair between them.

[0032] During the drying process, the turning motor 16-5 in each turning component 16 starts, which drives the turning drive pair 16-4 installed on it to run, thereby driving the upper turning shaft 16-3 to rotate. Under the drive of the turning transmission pair 16-2, the rotating upper turning shaft 16-3 can drive the lower turning shaft 16-1 to rotate synchronously, thereby driving the turning and stirring mechanism 16-6 to rotate. The rotating turning and stirring mechanism 16-6 can turn over the material on the conveying surface of the upper and lower mesh belt conveyor lines 12 and 14, increasing the contact area between the material and the hot air, and avoiding the accumulation of material which would affect the drying effect and efficiency. Finally, the dried material is output from the discharge end of the lower mesh belt conveyor line 14, and the discharge operation can be achieved without stopping the machine.

[0033] Working principle:

[0034] In actual operation, water-quenched glass material can be manually or fed into the feed hopper 11 using a feeding device. The material falls from the feed hopper 11 to the feed end of the mesh conveyor belt 12. The running mesh conveyor belt 12 transports the material to the drying operation box 13, and then drops from the discharge end to the feed end of the lower mesh conveyor belt 14. The lower mesh conveyor belt 14 then transports the material to the drying operation box 13 for drying. The operator can observe the material falling onto the lower mesh conveyor belt 14 through the viewing window on the guide hopper 17. The drying status of the material at the material end; During the drying operation, the hot air used for drying enters the inner buffer box from the air inlets in the rear air supply box structure 5 and the front air supply box structure 8. Then, under the action of the corresponding air duct component 6, the hot air is introduced into the corresponding air inlet flat pipe, and then the hot air is introduced into the inner cavity of the upper air supply box 3, the middle air supply box 2 and the lower air supply box 1. It is then blown from several vents to the transmission surface of the mesh belt conveyor line to dry the material conveyed on the mesh belt conveyor line, avoiding the concentrated blowing of hot air and saving drying resources.

[0035] During the drying process described above, the turning motor 16-5 in each turning component 16 starts, which drives the turning drive pair 16-4 installed on it to run, thereby driving the upper turning shaft 16-3 and the lower turning shaft 16-1 to rotate synchronously. This drives the turning and stirring mechanism 16-6 to rotate, turning the material on the conveyor surface of the upper conveyor belt 12 and the lower conveyor belt 14. This increases the contact area between the material and the hot air, preventing material accumulation from affecting the drying effect and efficiency. Finally, the dried material is output from the discharge end of the lower conveyor belt 14, and the discharge operation can be completed without stopping the machine.

Claims

1. A drying device for raw materials in the production of glass microspheres, characterized in that: The dryer includes a mounting rack (15), a drying operation box (13) is mounted on the mounting rack (15), an upper net belt conveying line (12) and a lower net belt conveying line (14) are provided in the drying operation box (13) and extend in the horizontal direction, the discharge end of the upper net belt conveying line (12) is located above the feeding end of the lower net belt conveying line (14); an upper cloth air box (3), a middle cloth air box (2) and a lower cloth air box (1) are provided in the drying operation box (13) and are distributed in the up-down direction, the upper cloth air box (3) and the middle cloth air box (2) are respectively located above and below the conveying surface of the upper net belt conveying line (12), and the lower cloth air box (1) is located above the conveying surface of the lower net belt conveying line (14); a plurality of air holes are formed in the bottom surface of the lower cloth air box (1) and the upper cloth air box (3) and the top surface of the middle cloth air box (2); a rear air supply box structure (5) and a front air supply box structure (8) are provided on the top of the drying operation box (13) and are connected with a drying gas source, a lower air inlet flat pipe (4) extending through the top of the drying operation box (13) is connected in communication between the rear air supply box structure (5) and the lower cloth air box (1), an upper air inlet flat pipe (9) extending through the top of the drying operation box (13) is connected in communication between the front air supply box structure (8) and the upper cloth air box (3), and a middle air inlet flat pipe (10) extending through the top of the drying operation box (13) is connected in communication between the front air supply box structure (8) and the middle cloth air box (2); an air induction assembly (6) for blowing drying gas into each air inlet pipe is arranged in the front air supply box structure (8) and the rear air supply box structure (5); an air outlet is formed in the top of the drying operation box (13); and a plurality of material stirring assemblies (16) for stirring the materials on the conveying surfaces of the upper net belt conveying line (12) and the lower net belt conveying line (14) are further included.

2. The glass microbead production raw material drying apparatus of claim 1, wherein the drying apparatus is characterized by: The rear air supply box structure (5) includes an outer protective box (5-2) fixed to the top of the drying operation box (13), an inner buffer box (5-3) is arranged in the inner portion of the outer protective box (5-2), and an air inlet (5-1) extending through the outer protective box (5-2) is connected in communication to the inner buffer box (5-3); the structure of the front air supply box structure (8) is identical to that of the rear air supply box structure (5).

3. The glass microbead production raw material drying apparatus of claim 1, wherein the drying apparatus is characterized by: The air induction assembly (6) includes an arc-shaped air deflector (6-6) arranged in the corresponding air inlet flat pipe and having an opening facing downward, a blade wheel rotating shaft (6-4) extending transversely through the air inlet flat pipe and the air supply box structure is arranged in the arc-shaped air deflector (6-6), a blade wheel (6-5) is arranged in the arc-shaped air deflector (6-6) and is mounted to the inner end portion of the blade wheel rotating shaft (6-4), and an air induction transmission pair (6-2) and an air induction motor (6-3) for driving the blade wheel rotating shaft (6-4) to rotate are further included.

4. The glass microbead production raw material drying apparatus of claim 1, wherein the drying apparatus is characterized by: The turnover assembly (16) comprises a lower turnover shaft (16-1) and an upper turnover shaft (16-3) penetrating through the drying operation box (13) and being rotationally connected with the drying operation box (13), the lower turnover shaft (16-1) is located above the lower mesh belt conveying line (14) and crosses the conveying surface of the lower mesh belt conveying line (14), and the upper turnover shaft (16-3) is located above the upper mesh belt conveying line (12) and crosses the conveying surface of the upper mesh belt conveying line (12); a turnover stirring mechanism (16-6) is mounted on each of the lower turnover shaft (16-1) and the upper turnover shaft (16-3); a turnover transmission pair (16-2) is mounted between the lower turnover shaft (16-1) and the upper turnover shaft (16-3), and a turnover motor (16-5) is mounted on the drying operation box (13), and a turnover driving pair (16-4) is mounted between the turnover motor (16-5) and the upper turnover shaft (16-3).

5. The raw material drying device for glass microsphere production as described in claim 4, characterized in that: The turnover stirring mechanism (16-6) comprises a stirring shaft sleeve (16-6-1) mounted on the corresponding turnover shaft, a plurality of groups of branch arm connecting pieces (16-6-2) in a spiral distribution are fixedly connected to the outer peripheral wall of the stirring shaft sleeve (16-6-1), a stirring branch arm (16-6-3) is detachably mounted on each of the branch arm connecting pieces (16-6-2), and a stirring blade (16-6-4) is detachably connected to the outer end of each of the stirring branch arms (16-6-3).

6. The glass microbead production raw material drying apparatus of claim 1, wherein the drying apparatus is characterized by: An air outlet box (7) is mounted on the top of the drying operation box (13), the air outlet box (7) is in communication connection with the air outlet opening formed in the top of the drying operation box (13), an axial flow fan is mounted at the air outlet opening in the top of the air outlet box (7), and a finned heat exchanger is mounted in the air outlet box (7).

7. The glass microbead production raw material drying apparatus of claim 1, wherein the drying apparatus is characterized by: An inlet hopper (11) is mounted on the drying operation box (13) and located above the inlet end of the upper mesh belt conveying line (12), a guide hopper (17) is mounted on the drying operation box (13) and covers the outlet end of the upper mesh belt conveying line (12) to guide the material to the inlet end of the lower mesh belt conveying line (14), and a blocking plate extending along the conveying direction is mounted on the support of the upper mesh belt conveying line (12) and the lower mesh belt conveying line (14).

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