Conveying device for silicon dioxide spray drying post-treatment

Abstract

The invention provides a conveying device for silicon dioxide spray drying aftertreatment. The conveying device comprises a conveying belt, a material collecting box, a material turning structure, a material distributing structure and a ventilation structure. One end of the conveying belt extends into the material collecting box; the material turning structure is arranged in a conveying belt area on the outer side of the material collecting box and is used for turning and cooling materials passing through the area; the material distributing structure is arranged above the conveying belt in the material collecting box, so that materials passing through the area move towards the two sides of the conveying belt and fall off; the ventilation structure is mounted at the material collecting box and connected with an external negative pressure system, so that airflow passes through a material falling area, and heat dissipation is accelerated; the heat dissipation and cooling efficiency of materials can be improved, the overall conveying stroke is shortened, and occupied space is reduced.

Description

Technical Field

[0001] The present invention relates to the field of silicon dioxide production equipment, and more specifically, to a conveying device for post-treatment of silicon dioxide spray drying. Background Art

[0002] During the production of silicon dioxide, one of the processing steps is drying. Currently, the more common method is to process it through a spray drying tower, and the dried powder is conveyed to the next processing equipment via a conveyor belt. Since the temperature of the silicon dioxide powder coming out of the spray drying tower is relatively high, the current method is mainly to extend the conveying stroke to cool it naturally. This method has a low cost, but occupies a large space, is difficult to maintain, and the material is piled up and transported, so the cooling effect is not good, so it needs to be improved. Summary of the invention

[0003] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to propose a conveying device for post-treatment of silicon dioxide spray drying, which can improve the efficiency of heat dissipation and cooling of materials, shorten the overall conveying stroke, and reduce space occupancy.

[0004] To achieve this object, the present invention adopts the following technical solutions: The present invention provides a conveying device for post-treatment of silicon dioxide spray drying, comprising a conveyor belt, a material collection box, a material turning structure, a material dividing structure, and a ventilation structure; one end of the conveyor belt extends into the material collection box; the material turning structure is arranged in the conveyor belt area outside the material collection box, and the materials passing through the area are turned over and heat dissipated; the material dividing structure is arranged above the conveyor belt inside the material collection box, so that the materials passing through the area move to both sides of the conveyor belt and fall; the ventilation structure is installed at the material collection box and connected to an external negative pressure system, so that the airflow passes through the area where the materials fall, thereby accelerating the heat dissipation.

[0005] In a preferred technical solution of the present invention, the material turning structure includes an enclosure, multiple support frames and a rake member; the enclosure includes two first baffles arranged opposite to each other, and the two first baffles are fixedly connected at one end close to the aggregate box by a frame plate; the two first baffles are respectively arranged on both sides of the upper belt surface of the conveyor belt, and the bottom is slidably abutted against the upper belt surface of the conveyor belt; the support frame spans above the enclosure, and the first baffles on both sides are fixed to the support frame by bolts, and multiple support frames are evenly spaced along the length direction of the first baffle; the top surface of the support frame is provided with a through hole for installing a rake member, and the bottom of the rake member is slidably abutted against the upper belt surface of the conveyor belt to turn the passing material.

[0006] In a preferred technical solution of the present invention, the material collection box comprises a box body with an open top, one end face of the box body is provided with an input port extending to the top, the bottom of the other end face is provided with a discharge port, and a box cover is installed on the top of the box body; one end of the conveyor belt extends into the interior of the material collection box through the input port; one end of the enclosure extends into the interior of the material collection box through the input port, and the first baffles on both sides are abutted against the two sides of the input port, the top surfaces of the first baffle and the frame plate are abutted against the bottom surface of the box cover, and a gap is left between the bottom surface of the frame plate and the upper belt surface of the conveyor belt to form a material passing port; a discharge structure is installed on the outer side of the discharge port, and the material discharge The structure is adjusted to realize the opening and closing of the discharge port; the ventilation structure includes an air inlet and an exhaust part; an exhaust port is provided above the discharge port, and the exhaust part is installed at the exhaust port; the air inlet includes an air pipe with one end closed, and a cover plate is fixedly provided on the outer edge of the open end of the air pipe, and the cover plate passes between the upper and lower belt surfaces of the conveyor belt, and the cover plate is fixed to the end surface of the collection box by bolts to shield the input port area between the two belt surfaces of the conveyor belt; the air pipe extends into the interior of the collection box and is located between the two belt surfaces of the conveyor belt; both sides of the air pipe are provided with air jets extending along the length direction.

[0007] In a preferred technical solution of the present invention, the inner wall of the gas pipe is provided with baffles corresponding to the two air jets, and a cavity is formed between the baffles and the inner wall of the gas pipe. The cavity extends toward the top of the gas pipe and is open at the top.

[0008] In a preferred technical solution of the present invention, the exhaust component includes a box body, the shape of the box body is adapted to the shape of the exhaust port and is clamped at the exhaust port, the outside of the box body is fixedly connected to the outer wall of the box body by bolts; the outward side of the box body is connected to a pipe head, the inward side of the box body is an arc-shaped groove, the groove is provided with a mounting port adapted to the arc surface, and a filter is fixed at the mounting port; the filter is an arc-shaped structure adapted to the arc surface of the groove; a brush roller is rotatably mounted between the two opposite side walls of the box body, the axis of the brush roller coincides with the axis of the groove, the bristles of the brush roller are held against the filter, and the brush roller is connected to the roller shaft of the conveyor belt through a pulley assembly or a sprocket assembly.

[0009] In a preferred technical solution of the present invention, the bristles of the brush roller are pressed against the outer wall of the end of the conveyor belt.

[0010] In a preferred technical solution of the present invention, the material distribution structure includes a support plate, and brackets are fixedly provided at both side ends of the support plate, the brackets are abutted against the inner wall of the box body, and are fixedly connected by bolts so that the support plate is located above the conveyor belt, and the bottom surface of the support plate is flush with the top surface of the material passing port; a first material guide block is fixedly provided on the bottom surface of the support plate, and the first material guide block is an isosceles triangle structure, and the waist edge extends from the end edge of the support plate to the middle position of the other end, and the convergence point of the two waist edges is located at the center position of one end of the support plate close to the material turning structure; the bottom surface of the first material guide block slides and abuts against the belt surface of the conveyor belt; Two second material guide blocks are fixedly provided on both sides of the first material guide block on the bottom surface, and the two second material guide blocks are symmetrically arranged about the center of the support plate; the thickness of the second material guide block is half of the thickness of the first material guide block; the second material guide block narrows toward the direction close to the turning structure to form a pointed structure; one end of the first inclined surface of the second material guide block away from the first material guide block extends to the end edge of the support plate, and the other end extends to the middle between the narrowed end of the first material guide block and the edge of the support plate; one end of the second inclined surface of the second material guide block close to the first material guide block is connected to the first inclined surface to form a pointed end, and the other end extends to the waist edge of the first material guide block.

[0011] In a preferred technical solution of the present invention, the discharge structure includes a second baffle and an electric push rod; a slot is provided on the outer side of the discharge port, and the second baffle is slidably clamped in the slot, and the second baffle slides close to the outer side of the discharge port. The electric push rod is installed on the outer wall of the box body, and the piston rod end of the electric push rod is connected to the top of the second baffle, which is used to drive the second baffle to move vertically to realize the opening and closing of the discharge port.

[0012] The beneficial effects of the present invention are: The present invention provides a conveying device for post-treatment of silicon dioxide spray drying, comprising a conveyor belt, a material collection box, a material turning structure, a material dividing structure, and a ventilation structure; one end of the conveyor belt extends into the material collection box; the material turning structure is arranged in the conveyor belt area outside the material collection box, and the materials passing through the area are turned over and dissipated; the accumulated materials are moved and turned over, so that the materials at the bottom are turned to the top, thereby accelerating the diffusion of heat, thereby achieving the effect of cooling and dissipating heat; The material distribution structure is arranged above the conveyor belt inside the collecting box, so that the materials passing through this area move and fall to both sides of the conveyor belt, so that the materials fall and disperse to both sides, increasing the contact range between the materials and the outside, and further accelerating the diffusion of heat; The ventilation structure is installed at the aggregate box and connected to the external negative pressure system, so that the airflow passes through the area where the material falls. By accelerating the flow of air, it effectively contacts the material during the dispersion and falls, takes away the heat, and thus achieves effective cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is a schematic diagram of the three-dimensional structure of a conveying device for post-treatment of silicon dioxide spray drying provided in a specific embodiment of the present invention from a first viewing angle; Figure 2 is a schematic diagram of the three-dimensional structure of a conveying device for post-treatment of silicon dioxide spray drying provided in a specific embodiment of the present invention from a second viewing angle; Figure 3 is a schematic diagram of the internal structure of a material collection box provided in a specific embodiment of the present invention; Figure 4 It is a schematic diagram of a three-dimensional unfolded structure of a conveying device for post-treatment of silicon dioxide spray drying provided in a specific embodiment of the present invention; Figure 5 is a schematic diagram of the three-dimensional structure of a material collection box provided in a specific embodiment of the present invention; Figure 6 is a schematic diagram of the three-dimensional structure of the material turning structure provided in a specific embodiment of the present invention; Figure 7 is a schematic diagram of the three-dimensional structure of an air intake member provided in a specific embodiment of the present invention; Figure 8 is a partial cross-sectional view of an air intake member provided in a specific embodiment of the present invention; Fig. 9 is a schematic diagram of the three-dimensional structure of an exhaust member provided in a specific embodiment of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the material separation structure provided in a specific embodiment of the present invention.

[0014] In the figure: 100, conveyor belt; 200, collecting box; 210, box body; 220, input port; 230, discharge port; 240, exhaust port; 250, card slot; 300, material turning structure; 310, enclosure; 311, first baffle; 312, frame plate; 320, support frame; 330, rake; 400, material dividing structure; 410, first material guide block; 420, second material guide block; 430, support plate; 440, bracket; 500, discharge structure; 510, second baffle; 520, electric push rod; 600, air inlet; 610, air pipe; 611, air jet; 612, baffle; 613, clamping cavity; 620, cover plate; 700, exhaust member; 710, box body; 720, pipe head; 730, groove; 740, filter; 800, brush roller. DETAILED DESCRIPTION

[0015] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0016] like Figures 1 to 4As shown, a specific embodiment of the present invention discloses a conveying device for post-treatment of silicon dioxide spray drying, including a conveyor belt 100, a collection box 200, a material turning structure 300, a material dividing structure 400, and a ventilation structure; one end of the conveyor belt 100 extends into the collection box 200; the material turning structure 300 is arranged in the area of ​​the conveyor belt 100 outside the collection box 200, and the materials passing through the area are turned over and heat dissipated; the material dividing structure 400 is arranged above the conveyor belt 100 inside the collection box 200, so that the materials passing through the area move to both sides of the conveyor belt and fall; the ventilation structure is installed at the collection box and connected to the external negative pressure system, so that the airflow passes through the area where the material falls, thereby accelerating the heat dissipation.

[0017] The above-mentioned conveying device for post-treatment of silicon dioxide spray drying, wherein the turning structure can turn the materials passing through the area to dissipate heat; it can turn the accumulated materials to the top by stirring and turning the materials at the bottom, thereby accelerating the diffusion of heat and achieving the effect of cooling and heat dissipation; the material distribution structure can make the materials passing through the area move and fall to both sides of the conveyor belt, so that the materials fall and disperse to both sides, increase the contact range of the materials with the outside, and further accelerate the diffusion of heat; the ventilation structure accelerates the flow of airflow, effectively contacts the materials during the dispersion and falling period, takes away the heat, and thus achieves effective cooling; it can perform multiple heat dissipation and cooling treatments on the materials, effectively reducing the heat carried by the materials, and the overall structural design is relatively compact, effectively reducing space occupancy.

[0018] Furthermore, if Figure 6 As shown, the material turning structure 300 includes a blocking member 310, a plurality of support frames 320 and a rake member 330; the blocking member 310 includes two first baffles 311 arranged opposite to each other, and one end of the two first baffles 311 close to the material collecting box is fixedly connected by a frame plate 312; the two first baffles 311 are respectively arranged on both sides of the upper belt surface of the conveyor belt, and the bottom is slidably supported on the upper belt surface of the conveyor belt 100, and the first baffles are used to block and limit the two sides of the conveyor belt to prevent materials from falling from both sides during the transfer process; the support frame cross Above the cross-enclosing member, the first baffles 311 on both sides are fixed to the support frame 320 by bolts, and a plurality of support frames are evenly spaced along the length direction of the first baffle; the top surface of the support frame 320 is provided with a perforation for installing a rake member 330, and the bottom of the rake member 330 is slidably held against the upper belt surface of the conveyor belt 100, and is used to turn the passing materials; wherein the rake members on two adjacent support frames are mutually staggered, and the positions of raking and turning the materials can be changed, so that the materials can be fully turned over, and the heat dissipation efficiency is improved; Furthermore, the rake member includes a vertical rod, a third material guide block fixedly arranged at the bottom end of the vertical rod, the bottom surface of the third material guide block slides against the upper belt surface of the conveyor belt, and the top surface of the material guide block tilts upward in the conveying direction of the conveyor belt, which can effectively turn over the passing materials, so that the materials at the bottom can be turned to the surface; Furthermore, if Figure 5 As shown, the material collecting box 200 includes a box body 210 with an open top, an input port 220 extending to the top is provided on one end surface of the box body 210, a discharge port 230 is provided at the bottom of the other end surface, and a box cover is installed on the top of the box body; Figure 3 As shown, one end of the conveyor belt extends into the interior of the collection box through the input port; one end of the enclosure 310 extends into the interior of the collection box 200 through the input port, and the first baffles 311 on both sides abut against the two sides of the input port 220, the top surfaces of the first baffle 311 and the frame plate 312 abut against the bottom surface of the box cover, and a gap is left between the bottom surface of the frame plate and the upper belt surface of the conveyor belt to form a material passing port; this structural combination does not affect the normal transportation of materials, and can also block and contain part of this area through the structure of the first baffle and the frame plate, leaving only the material passing port as the material entry and exit site, reducing the airflow outflow from this site; A discharge structure 500 is installed outside the discharge port 230. The discharge structure is adjusted to realize the opening and closing of the discharge port. It is only opened when discharging materials and is closed at other times to maintain a relatively closed space inside so that the airflow flows in the desired direction as much as possible, thereby enhancing the overall heat dissipation effect. like Fig. 9 As shown, the ventilation structure includes an air inlet 600 and an exhaust member 700; an exhaust port 240 is provided above the discharge port 230, and the exhaust member 700 is installed at the exhaust port 240; Figure 7 As shown, the air inlet member 600 includes an air pipe 610 with one end closed, and a cover plate 620 is fixedly arranged on the outer edge of the open end of the air pipe 610, and the cover plate 620 passes between the upper and lower belt surfaces of the conveyor belt 100, and is fixed to the end surface of the collecting box 200 by bolts, so as to shield the input port area between the two belt surfaces of the conveyor belt, and further block and limit the input port to prevent gas and materials from being discharged from the input port; the air pipe 610 extends into the interior of the collecting box 200 and is located between the two belt surfaces of the conveyor belt; both sides of the air pipe 610 are provided with air jets 611 extending along the length direction; this structural design can form an outlet portion between the belt surfaces of the conveyor belt inside the collecting box, and blow in both directions, so as to fully contact with the fallen and scattered materials, take away the heat of the materials, and thus achieve the effect of cooling and heat dissipation; Furthermore, strip-shaped brushes can be installed on the upper and lower parts of the cover plate, and the bristles of the brushes are pressed against the inner belt surface and the inner teeth of the conveyor belt, which can form a certain blocking effect on this part, which does not affect the movement of the conveyor belt and can also prevent dust from flying out; Furthermore, if Figure 8 As shown, the inner wall of the air pipe 610 is provided with a retaining bar 612 corresponding to the two air jets 611, and a clamping cavity 613 is formed between the retaining bar 612 and the inner wall of the air pipe 610. The clamping cavity extends toward the top of the air pipe and is open at the top position. This structural design can limit the air outlet position to prevent dust from reversely entering the air jet and flying out.

[0019] Furthermore, if Fig. 9 As shown, the exhaust member 700 includes a box body 710, the shape of which matches the shape of the exhaust port 240 and is clamped at the exhaust port, and the exterior of the box body is fixedly connected to the outer wall of the box body by bolts; the outward side of the box body 710 is connected to a pipe head 720, and the inward side of the box body is an arc-shaped groove 730, and the groove is provided with a mounting port that matches the arc surface, and a filter screen 740 is fixedly provided at the mounting port; as shown in FIG. Figure 3 , Figure 4 As shown, a brush roller 800 is rotatably mounted between two opposite side walls of the box body 210, the axis of the brush roller 800 coincides with the axis of the groove 730, the bristles of the brush roller 800 are held against the filter screen 740, and the brush roller is connected to the roller shaft of the conveyor belt through a pulley assembly or a sprocket assembly; a filter screen is provided on the exhaust member, which can not only maintain smooth ventilation, but also prevent internal materials from being discharged to the outside with the air flow; the groove and the filter screen are both arc-shaped structures, which can effectively cooperate with the designed brush roller, and the filter screen is cleaned by rolling the rotating brush roller, which effectively prevents the filter screen from being blocked and maintains smooth ventilation; and the brush roller rotates with the conveyor belt, and no additional power components need to be designed, thereby reducing costs and power consumption; Among them, the negative pressure system is connected with the pipe head through a pipeline to evacuate the inside of the aggregate box, and the external airflow passes through the air inlet and is ejected from the air jets on both sides to accelerate the heat dissipation of the scattered materials; it should be pointed out that the negative pressure system includes but is not limited to a separately set air extraction device or an integrated negative pressure device in the workshop, and the direct purpose is to evacuate the inside of the aggregate box, and the air extraction device and the integrated negative pressure device are both relatively common instrument structures, and the specific details are not repeated; Furthermore, the bristles of the brush roller 800 are pressed against the outer wall of the end of the conveyor belt 100, and can also clean the outer wall of the unloading end of the conveyor belt, thereby reducing the adhesion of materials on the conveyor belt and reducing waste.

[0020] Furthermore, if Fig.10As shown, the material distribution structure 400 includes a support plate 430, and brackets 440 are fixedly provided at both side ends of the support plate 430. The brackets 440 are abutted against the inner wall of the box body 210 and are fixedly connected by bolts so that the support plate 430 is located above the conveyor belt 100, and the bottom surface of the support plate is flush with the top surface of the material passing port; a first material guide block 410 is fixedly provided on the bottom surface of the support plate 430, and the first material guide block is an isosceles triangle structure, and the waist edge extends from the end edge of the support plate to the middle position of the other end, and the convergence point of the two waist edges is located at the center position of one end of the support plate close to the material turning structure; the bottom surface of the first material guide block 410 is slidably abutted against the belt surface of the conveyor belt 100; two second material guide blocks 420 are fixedly provided on the bottom surface of the support plate 430 on both sides of the first material guide block, The two second material guide blocks are symmetrically arranged about the center of the support plate; the thickness of the second material guide block 420 is half of the thickness of the first material guide block 410; the second material guide block narrows toward the direction close to the material turning structure to form a pointed structure; one end of the first inclined surface of the second material guide block away from the first material guide block extends to the end edge of the support plate, and the other end extends to the middle between the narrowed end of the first material guide block and the edge of the support plate; one end of the second inclined surface of the second material guide block close to the first material guide block is connected to the first inclined surface to form a pointed end, and the other end extends to the waist edge of the first material guide block; this structural design can layer and disperse the materials entering this area, so that the materials can be fully dispersed and dropped, effectively expanding the dispersion range, and fully contacting with the airflow, thereby accelerating the diffusion of heat.

[0021] Furthermore, the discharge structure 500 includes a second baffle 510 and an electric push rod 520; a card slot 250 is provided on the outer side of the discharge port 230, and the second baffle 510 is slidably carded in the card slot 250, and the second baffle 510 slides close to the outer side of the discharge port 230, and the electric push rod is installed on the outer wall of the box body, and the piston rod end of the electric push rod 520 is connected to the top of the second baffle 510, which is used to drive the second baffle to move vertically to realize the opening and closing of the discharge port; wherein, the top of the second baffle is fixedly provided with a flange, and the top of the flange is fixedly provided with a plug, and the piston rod end of the electric push rod is inserted in the plug and connected by a pin; and the number of the electric push rods is 2, which are symmetrically arranged at both ends of the discharge port, driving the second baffle to rise and fall smoothly, and realizing effective blocking or opening of the discharge port to meet the corresponding needs.

[0022] The present invention is described by preferred embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein, and other embodiments falling within the claims of this application are within the scope of protection of the present invention.

Claims

1. A conveying device for post-treatment of silicon dioxide spray drying, characterized in that: Including conveyor belt, collecting box, material turning structure, material dividing structure and ventilation structure; One end of the conveyor belt extends into the collection box; The material turning structure is located in the conveyor belt area outside the material collecting box to turn over and dissipate heat for the materials passing through this area; The material distribution structure is located above the conveyor belt inside the collecting box, so that the materials passing through this area move to both sides of the conveyor belt and fall; The ventilation structure is installed at the collecting box and connected to the external negative pressure system, so that the airflow passes through the area where the materials fall, accelerating the heat dissipation.

2. A conveying device for post-treatment of silicon dioxide spray drying according to claim 1, characterized in that: The material turning structure includes a fencing member, a plurality of support frames and a rake member; The enclosure member includes two first baffles arranged opposite to each other, and one end of the two first baffles close to the collecting box is fixedly connected by a frame plate; the two first baffles are respectively arranged on both sides of the upper belt surface of the conveyor belt, and the bottoms thereof are slidably held against the upper belt surface of the conveyor belt; The support frame spans across the top of the enclosure, the first baffles on both sides are fixed to the support frame by bolts, and the plurality of support frames are evenly spaced along the length direction of the first baffle; The top surface of the support frame is provided with a perforation for installing a rake member, and the bottom of the rake member slides against the upper belt surface of the conveyor belt to stir and turn the passing materials.

3. A conveying device for post-treatment of silicon dioxide spray drying according to claim 2, characterized in that: The material collecting box comprises a box body with an open top, one end face of the box body is provided with an input port extending to the top, the bottom of the other end face is provided with a discharge port, and a box cover is installed on the top of the box body; one end of the conveyor belt extends into the interior of the material collecting box through the input port; One end of the enclosure extends into the interior of the material collection box through the input port, and the first baffles on both sides abut against the two sides of the input port, the top surface of the first baffle and the frame plate abut against the bottom surface of the box cover, and a gap is left between the bottom surface of the frame plate and the upper belt surface of the conveyor belt to form a material passing port; A discharge structure is installed on the outside of the discharge port, and the discharge structure can be adjusted to realize the opening and closing of the discharge port; The ventilation structure includes an air intake component and an air exhaust component; An exhaust port is provided above the discharge port, and an exhaust member is installed at the exhaust port; The air inlet component includes an air pipe with one end closed, and a cover plate is fixedly provided on the outer edge of the open end of the air pipe. The cover plate passes between the upper and lower belt surfaces of the conveyor belt, and is fixed to the end surface of the aggregate box by bolts to shield the input port area between the two belt surfaces of the conveyor belt; the air pipe extends into the interior of the aggregate box and is located between the two belt surfaces of the conveyor belt; air jets extending along the length direction are provided on both sides of the air pipe.

4. A conveying device for post-treatment of silicon dioxide spray drying according to claim 3, characterized in that: The inner wall of the gas pipeline is provided with baffles corresponding to the two air jets, and a clamping cavity is formed between the baffles and the inner wall of the gas pipeline. The clamping cavity extends toward the top of the gas pipeline and is open at the top.

5. A conveying device for post-treatment of silicon dioxide spray drying according to claim 3, characterized in that: The exhaust member comprises a box body, the shape of which matches the shape of the exhaust port and is clamped at the exhaust port, and the exterior of the box body is fixedly connected to the outer wall of the box body by bolts; The outward side of the box body is connected with a pipe head, and the inward side of the box body is an arc-shaped groove, and the groove is provided with a mounting opening adapted to the arc surface, and a filter is fixed at the mounting opening; the filter is an arc-shaped structure adapted to the arc surface of the groove; A brush roller is rotatably mounted between two opposite side walls of the box body, the axis of the brush roller coincides with the axis of the groove, the bristles of the brush roller are held against the filter screen, and the brush roller is connected to the roller shaft of the conveyor belt through a pulley assembly or a sprocket assembly.

6. A conveying device for post-treatment of silicon dioxide spray drying according to claim 5, characterized in that: The bristles of the brush roller are pressed against the outer wall of the end of the conveyor belt.

7. A conveying device for post-treatment of silicon dioxide spray drying according to claim 3, characterized in that: The material distribution structure includes a support plate, and brackets are fixedly provided at both ends of the support plate. The brackets are supported against the inner wall of the box body and are fixedly connected by bolts so that the support plate is located above the conveyor belt, and the bottom surface of the support plate is flush with the top surface of the material passing port; A first material guide block is fixedly provided on the bottom surface of the support plate. The first material guide block is an isosceles triangle structure. The waist edge extends from the end edge of the support plate to the middle position of the other end. The convergence point of the two waist edges is located at the center position of one end of the support plate close to the material turning structure. The bottom surface of the first material guide block slides against the belt surface of the conveyor belt. Two second material guide blocks are fixedly arranged on the bottom surface of the support plate at both sides of the first material guide block, and the two second material guide blocks are symmetrically arranged about the center of the support plate; the thickness of the second material guide block is half of the thickness of the first material guide block; The second material guide block narrows toward the material turning structure and forms a pointed structure; one end of the second material guide block away from the first inclined surface of the first material guide block extends to the end edge of the support plate, and the other end extends to the middle between the narrowed end of the first material guide block and the edge of the support plate; One end of the second inclined surface of the second material guiding block close to the first material guiding block is connected with the first inclined surface to form a pointed end, and the other end extends to the waist edge of the first material guiding block.

8. A conveying device for post-treatment of silicon dioxide spray drying according to claim 3, characterized in that: The discharging structure includes a second baffle and an electric push rod; A card slot is provided on the outside of the discharge port, and the second baffle is slidably carded in the card slot. The second baffle slides close to the outside of the discharge port. The electric push rod is installed on the outer wall of the box body, and the piston rod end of the electric push rod is connected to the top of the second baffle, which is used to drive the second baffle to move vertically to realize the opening and closing of the discharge port.

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