A high-temperature quartz sand cooling and waste heat recovery device

Abstract

The present invention discloses a high-temperature quartz sand cooling and waste heat recovery device, which specifically relates to the technical field of quartz sand processing. It includes a sealed top cover, the lower surface of the sealed top cover is clamped with the upper surface of the processing shell, the lower surface of the inner wall of the processing shell is fixedly connected to the lower surfaces of three treatment boxes respectively, a spiral rod is arranged in the treatment box, the spiral rod is composed of a spiral blade and a connecting rod, and the bottom end of the spiral rod passes through a filter baffle and is in driving connection with the top end of a fan blade. By setting a first conduit, a drain pipe, heat dissipation fins and a fan, after the coolant is conveyed back to the cooling box through a return pipe, the effect of recycling can be achieved, so that the recovery device does not need to consume a large amount of resources to cool the coolant, and by recovering the heat, the drying of quartz sand is accelerated, the cost of using the recovery device is reduced, and the production efficiency of the recovery device for large-scale processing of quartz sand is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of quartz sand processing, and more specifically, to a high-temperature quartz sand cooling and waste heat recovery device. Background Art

[0002] Quartz sand is quartz particles obtained by crushing quartz stone. Quartz stone is a non-metallic mineral, a hard, wear-resistant, and chemically stable silicate mineral. Quartz sand is milky white or colorless and translucent, with a Mohs hardness of 7. Quartz sand is an important industrial mineral raw material, not a chemical dangerous good, and is widely used in industries such as glass, casting, ceramics and fireproof materials, smelting ferrosilicon, metallurgical flux, metallurgy, construction, chemical industry, plastics, rubber, abrasives, and filter materials.

[0003] High-purity quartz sand (purity above 99.99%) is the raw material for crucibles in the production of solar single-crystalline silicon. Due to its high purity, the production process is complex and strict, and it is a product with high added value. In the process of producing high-purity quartz sand, there is a high-temperature drying treatment process. The temperature of the quartz sand after high-temperature treatment is above 1000 degrees Celsius, and it needs to be cooled.

[0004] However, natural cooling has certain conditional limitations. Exposing quartz stone to the air for natural cooling easily causes heat to dissipate into the air, which not only causes waste of natural resources, but also easily pollutes the processed quartz sand during the cooling process, reducing the purity of the finished quartz sand, thereby affecting the processing quality of quartz sand. At the same time, the natural cooling method of quartz sand takes a lot of time, and most of the current auxiliary cooling devices have poor heat rate for quartz sand, increasing the cost of quartz sand cooling and processing, and restricting the efficiency of large-scale production of quartz sand. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-temperature quartz sand cooling and waste heat recovery device. The technical problem to be solved by the present invention is: Natural cooling has certain conditional limitations. Exposing quartz stone to the air for natural cooling easily causes heat to dissipate into the air, which not only causes waste of natural resources, but also easily pollutes the processed quartz sand during the cooling process, reducing the purity of the finished quartz sand, thereby affecting the processing quality of quartz sand. At the same time, the natural cooling method of quartz sand takes a lot of time, and most of the current auxiliary cooling devices have poor heat rate for quartz sand, increasing the cost of quartz sand cooling and processing, and restricting the efficiency of large-scale production of quartz sand.

[0006] To achieve the above object, the present invention provides the following technical solution: A high-temperature quartz sand cooling and waste heat recovery device, including a sealed top cover, the lower surface of the sealed top cover is snap-connected to the upper surface of the processing housing, the lower surface of the inner wall of the processing housing is fixedly connected to the lower surfaces of three processing boxes respectively, a spiral rod is arranged in the processing box, the spiral rod is composed of a spiral blade and a connecting rod, the bottom end of the spiral rod passes through the filtering baffle and is in driving connection with the top end of the fan blade, the lower surface of the filtering baffle is fixedly connected to the lower surface of the inner wall of the processing box, the outer surface of the fan blade is sleeved with a bearing, the outer surface of the bearing is fixedly connected to the inner wall of the bearing cage, the outer surface of the bearing cage is fixedly connected to the inner wall of the first sealing cover, and the upper surface of the first sealing cover is fixedly connected to the lower surface of the processing box.

[0007] A through hole is opened on the lower surface of the processing box, the processing box is communicated with the first sealing cover through the through hole, the lower surface of the first sealing cover is communicated with the top end of the first conduit, the other end of the first conduit is communicated with the right end of the second conduit, the outer surface of the first conduit is fixedly connected to the inner wall of the positioning block, the lower surface of the positioning block is fixedly connected to the lower surface of the inner wall of the processing housing, the other end of the second conduit is respectively communicated with the top ends of two third conduits through elbows and tees, the bottom end of the third conduit is fixedly connected to the upper surface of the second sealing cover, the first conduit is communicated with the second sealing cover through the second conduit and the third conduit, the lower surface of the second sealing cover is fixedly connected to the lower surface of the inner wall of the processing housing, and a drain pipe is arranged in the second sealing cover.

[0008] As a further scheme of the present invention: The left end of the drain pipe is communicated with the right side surface of the transfer box, the right end of the drain pipe is communicated with the left side surface of the processing box, and a plurality of heat dissipation fins are fixedly connected to the outer surface of the drain pipe, and the plurality of heat dissipation fins are evenly distributed on the outer surface of the drain pipe.

[0009] As a further scheme of the present invention: Three air blowers are fixedly connected to the lower surface of the inner wall of the processing housing, and the three air blowers are respectively located in the three second sealing covers. The air inlet of the air blower is communicated with the top end of the first air inlet pipe, and the other end of the first air inlet pipe passes through the base and is communicated with the bottom end of the second air inlet pipe.

[0010] As a further scheme of the present invention: The upper surface of the base is fixedly connected to the lower surface of the processing housing, and the top ends of the three second air inlet pipes are communicated with the same joint through a connecting pipe. One end of the front surface of the joint is communicated with the back surface of the filtering box, and the lower surface of the filtering box is fixedly connected to the upper surface of the sealed top cover.

[0011] As a further solution of the present invention: two exhaust holes are provided on the upper surface of the sealed top cover, and clamping grooves are provided on the left and right side surfaces of the inner walls of the two exhaust holes. Rotating devices are clamped in the clamping grooves provided inside the exhaust holes, and one ends of the opposite surfaces of the two rotating devices are fixedly connected to the left and right side surfaces of the same filter wheel.

[0012] As a further solution of the present invention: the rotating device is composed of a bearing and a rotating shaft. The outer surface of the filter wheel abuts against the inner wall of the third sealing cover. The lower surface of the third sealing cover is fixedly connected to the upper surface of the sealed top cover. The outer surface of the third sealing cover is communicated with the right side surface of the filter box through a connecting pipe.

[0013] As a further solution of the present invention: the lower surface of the inner wall of the processing housing is fixedly connected to the lower surface of the cooling box. The upper surface of the cooling box is communicated with the bottom ends of a plurality of first infusion pipes, and the other ends of the plurality of first infusion pipes are respectively communicated with the right ends of six second infusion pipes. The left ends of the corresponding two second infusion pipes are connected to the right side surface of the same treatment box.

[0014] As a further solution of the present invention: a valve is fixedly connected to the right side surface of the cooling box. The inside of the cooling box is communicated with the right ends of two T-shaped return pipes. One end of the front surface and one end of the back surface of the return pipe are respectively communicated with the opposite surfaces of two transfer boxes, and the lower surfaces of the three transfer boxes are all connected to the lower surface of the inner wall of the processing housing. Water pumps are provided in both the cooling box and the transfer box.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. By setting the first conduit, the first sealing cover, the drain pipe, the heat sink and the fan, when the coolant enters the transfer box along the drain pipe on the left side of the treatment box, since the coolant absorbs a large amount of heat from the quartz sand, when the gas passes through the second sealing cover and enters the first conduit, the air flow rate on the surface of the drain pipe will be accelerated, thereby absorbing the heat of the heated coolant through the heat sink. At this time, the high-temperature gas will enter the first sealing cover along the first conduit and the second conduit, so that the gas discharged into the first sealing cover still contains heat, which plays an auxiliary role in drying the quartz sand, avoiding the influence of the long-term adhesion of the cold area liquid on the surface of the quartz sand on the quality of the quartz sand. Moreover, this method can greatly reduce the temperature of the coolant, and after the coolant is transported back to the cooling box through the return pipe again, the effect of recycling can be achieved, so that the recycling device does not need to consume a large amount of resources to cool the coolant, and by recovering the heat, the drying of the quartz sand is accelerated. At the same time, due to the rapid circulation of the air, the situation of the quartz sand heating up after the discharge of the high-temperature gas is reduced, the cost of using the recycling device is reduced, and the production efficiency of the recycling device for large-scale processing of quartz sand is guaranteed;

[0017] 2. After completely pouring the quartz sand to be cooled into the treatment tank, the present invention starts the water pumps inside the cooling tank and the transfer tank and starts the fan by setting the fan blades, the screw rod and the treatment tank. Since the fan will extract the external air through the first intake pipe and the second intake pipe during operation and discharge the gas into the treatment tank through the first sealing cover, when the gas passes through the first sealing cover, it will drive the fan blades to rotate, and during the rotation of the fan blades, the screw rod will be synchronously driven to rotate, so that the quartz sand below the treatment tank will move upward with the rotation of the screw rod. In this way, when the recycling device is used, the wind power generated during the heat dissipation of the fan can be effectively utilized, and the position of the quartz sand inside the treatment tank below can be adjusted by the action of the wind power, avoiding the situation that the quartz sand below becomes overly wet due to long-term accumulation. At the same time, the heat transfer upward is reduced, which affects the heat dissipation of the quartz sand above. Thus, while ensuring the heat dissipation effect of the recycling device on the quartz sand, the processing efficiency of the recycling device for the quartz sand is improved;

[0018] 3. By setting the filter tank, the filter wheel and the third sealing cover, since the inside of the processing housing is in a sealed state, the gas will be discharged through the exhaust holes, and during the discharge process, the gas will squeeze the filter wheel, making the filter wheel rotate. And the impurities contained in the gas will fall during the process of the filter wheel contacting the third sealing cover. At this time, the impurities will be retained in the filter tank, and the gas will enter the fan again for use. In this way, the recycling device can effectively collect and process the impurities and waste gas generated during the processing of the quartz sand, thereby reducing the impact on the environment during the processing of the quartz sand by the recycling device, and further ensuring the actual use effect of the recycling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 is a three-dimensional structural schematic diagram of the processing housing of the present invention;

[0021] Figure 3 is a three-dimensional sectional structural schematic diagram of the treatment tank of the present invention;

[0022] Figure 4 is a three-dimensional structural schematic diagram of the first sealing cover of the present invention;

[0023] Figure 5 is a three-dimensional sectional structural schematic diagram of the second sealing cover of the present invention;

[0024] Figure 6 is a three-dimensional sectional structural schematic diagram of the sealing top cover of the present invention;

[0025] In the figure: 1 is a sealed top cover, 2 is a processing housing, 3 is a treatment tank, 4 is a screw rod, 5 is a filter baffle, 6 is a fan blade, 7 is a bearing, 8 is a bearing cage, 9 is a first sealing cover, 10 is a first conduit, 11 is a positioning block, 12 is a second conduit, 13 is a third conduit, 14 is a second sealing cover, 15 is a drain pipe, 16 is a heat sink, 17 is a transfer tank, 18 is a fan, 19 is a base, 20 is a first intake pipe, 21 is a second intake pipe, 22 is a connector, 23 is a filter box, 24 is a third sealing cover, 25 is an exhaust hole, 26 is a rotating device, 27 is a filter wheel, 28 is a cooling tank, 29 is a first infusion pipe, 30 is a second infusion pipe, 31 is a valve, 32 is a return pipe. Detailed implementation manner

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] As Figure 1-6 shown, the present invention provides a high-temperature quartz sand cooling and waste heat recovery device, including a sealed top cover 1. The lower surface of the sealed top cover 1 is clamped with the upper surface of the processing housing 2. The lower surface of the inner wall of the processing housing 2 is fixedly connected to the lower surfaces of three treatment tanks 3 respectively. A screw rod 4 is arranged in the treatment tank 3. The screw rod 4 is composed of a spiral blade and a connecting rod. The bottom end of the screw rod 4 passes through the filter baffle 5 and is in transmission connection with the top end of the fan blade 6. The lower surface of the filter baffle 5 is fixedly connected to the lower surface of the inner wall of the treatment tank 3. The outer surface of the fan blade 6 is sleeved with a bearing 7. The outer surface of the bearing 7 is fixedly connected to the inner wall of the bearing cage 8. The outer surface of the bearing cage 8 is fixedly connected to the inner wall of the first sealing cover 9. The upper surface of the first sealing cover 9 is fixedly connected to the lower surface of the treatment tank 3.

[0028] The lower surface of the processing box 3 is provided with a through hole. The processing box 3 is communicated with the first sealing cover 9 through the through hole. The lower surface of the first sealing cover 9 is communicated with the top end of the first conduit 10. The other end of the first conduit 10 is communicated with the right end of the second conduit 12. The outer surface of the first conduit 10 is fixedly connected to the inner wall of the positioning block 11. The lower surface of the positioning block 11 is fixedly connected to the lower surface of the inner wall of the processing housing 2. The other end of the second conduit 12 is respectively communicated with the top ends of two third conduits 13 through elbows and tees. The bottom end of the third conduit 13 is fixedly connected to the upper surface of the second sealing cover 14. The first conduit 10 is communicated with the second sealing cover 14 through the second conduit 12 and the third conduit 13. The lower surface of the second sealing cover 14 is fixedly connected to the lower surface of the inner wall of the processing housing 2. A drain pipe 15 is arranged in the second sealing cover 14. By providing the first conduit 10, the first sealing cover 9, the heat sink 16 and the fan 18, the above method can greatly reduce the temperature of the coolant, and after the coolant is conveyed back to the cooling box 28 through the return pipe 32, the effect of recycling can be achieved, so that the recycling device does not need to consume a large amount of resources to cool the coolant, and by recovering the heat, the drying of the quartz sand is accelerated. At the same time, due to the rapid flow of air, the situation that the quartz sand heats up after the discharge of high-temperature gas is reduced, the cost of using the recycling device is reduced, and the production efficiency of the recycling device for large-scale processing of quartz sand is guaranteed.

[0029] Such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the figure, the left end of the drain pipe 15 is connected to the right side of the transfer box 17, and the right end of the drain pipe 15 is connected to the left side of the treatment box 3. A plurality of radiating fins 16 are fixedly connected to the outer surface of the drain pipe 15, and the plurality of radiating fins 16 are evenly distributed on the outer surface of the drain pipe 15. Three air blowers 18 are fixedly connected to the lower surface of the inner wall of the processing housing 2, and the three air blowers 18 are respectively located in the three second sealing covers 14. The air inlet of the air blower 18 is connected to the top end of the first air inlet pipe 20, and the other end of the first air inlet pipe 20 passes through the base 19 and is connected to the bottom end of the second air inlet pipe 21. The upper surface of the base 19 is fixedly connected to the lower surface of the processing housing 2. By arranging the screw rod 4 and the treatment box 3, when the recycling device is in use, the wind generated during the heat dissipation of the air blower 18 can be effectively utilized, and the position of the quartz sand inside the lower treatment box 3 can be adjusted by the action of the wind, so as to avoid the situation that the lower quartz sand becomes overly wet due to long-term accumulation. At the same time, the heat transfer upwards is reduced, which affects the heat dissipation of the upper quartz sand. Therefore, while ensuring the heat dissipation effect of the recycling device on the quartz sand, the processing efficiency of the recycling device on the quartz sand is improved. The top ends of the three second air inlet pipes 21 are connected to the same joint 22 through a connecting pipe, and one end of the front surface of the joint 22 is connected to the back surface of the filter box 23. The lower surface of the filter box 23 is fixedly connected to the upper surface of the sealing top cover 1.

[0030] As Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown in the figure, two exhaust holes 25 are opened on the upper surface of the sealing top cover 1, and clamping grooves are opened on the left and right side surfaces of the inner walls of the two exhaust holes 25. Rotating devices 26 are clamped in the clamping grooves opened inside the exhaust holes 25. One ends of the opposite surfaces of the two corresponding rotating devices 26 are fixedly connected to the left and right side surfaces of the same filter wheel 27. Due to the arrangement of the filter wheel 27 and the rotating device 26, when the gas is discharged through the exhaust hole 25, the filter wheel 27 can be in a rotating state, and the rotating device 26 is composed of a bearing and a rotating shaft, so as to ensure the stability of the rotation of the filter wheel 27. The rotating device 26 is composed of a bearing and a rotating shaft. The outer surface of the filter wheel 27 is mutually lapped with the inner wall of the third sealing cover 24. The lower surface of the third sealing cover 24 is fixedly connected to the upper surface of the sealing top cover 1. The outer surface of the third sealing cover 24 is connected to the right side surface of the filter box 23 through a connecting pipe.

[0031] As Figure 3 , Figure 5 and Figure 6As shown in the figure, the lower surface of the inner wall of the processing housing 2 is fixedly connected to the lower surface of the cooling box 28. The upper surface of the cooling box 28 is communicated with the bottom ends of a plurality of first infusion tubes 29, and the other ends of the plurality of first infusion tubes 29 are respectively communicated with the right ends of six second infusion tubes 30. The left ends of the corresponding two second infusion tubes 30 are communicated with the right side surface of the same processing box 3. A valve 31 is fixedly connected to the right side surface of the cooling box 28. The inside of the cooling box 28 is communicated with the right ends of two return tubes 32 with a T-shaped design. Due to the arrangement of the third sealing cover 24 and the filtering wheel 27, the recycling device can effectively collect and process the impurities and waste gas generated during the processing of quartz sand, thereby reducing the impact of the recycling device on the environment during the processing of quartz sand, and further ensuring the actual use effect of the recycling device. One end of the front surface and one end of the back surface of the return tube 32 are respectively communicated with the opposite surfaces of two transfer boxes 17, and the lower surfaces of the three transfer boxes 17 are all communicated with the lower surface of the inner wall of the processing housing 2. Water pumps are arranged in both the cooling box 28 and the transfer box 17.

[0032] Working principle of the present invention: When using this recycling device, coolant needs to be injected into the cooling tank 28 through the valve 31. And when it is necessary to cool the quartz sand, only need to open the sealed top cover 1, and then pour the processed quartz sand into the treatment tank 3. After completely pouring the quartz sand to be cooled into the treatment tank 3, start the water pumps inside the cooling tank 28 and the transfer tank 17 and start the fan 18. Since the fan 18 will draw in outside air through the first intake pipe 20 and the second intake pipe 21 during operation and discharge the gas into the treatment tank 3 through the first sealing cover 9, when the gas passes through the first sealing cover 9, it will drive the fan blade 6 to rotate. And during the rotation of the fan blade 6, the screw rod 4 will be synchronously driven to rotate, so that the quartz sand below the treatment tank 3 will move upward with the rotation of the screw rod 4. When the coolant enters the transfer tank 17 along the drain pipe 15 on the left side of the treatment tank 3, since the coolant absorbs a large amount of heat from the quartz sand, when the gas passes through the second sealing cover 14 and enters the first conduit 10, it will accelerate the air flow rate on the surface of the drain pipe 15, thereby absorbing the heat of the heated coolant through the heat sink 16. At this time, the high-temperature gas will enter the first sealing cover 9 along the first conduit 10 and the second conduit 12, so that the gas discharged into the first sealing cover 9 still contains heat. When the high-temperature gas gradually cools down as it evaporates the liquid on the surface of the quartz sand, it will be discharged into the processing housing 2. Since the inside of the processing housing 2 is in a sealed state, the gas will be discharged through the exhaust hole 25. And during the discharge process, the gas will squeeze the filter wheel 27, making the filter wheel 27 rotate, and the impurities contained in the gas will fall off during the process of the filter wheel 27 contacting the third sealing cover 24. Since the third sealing cover 24 is connected to the filter box 23, the filtered impurities and the filtered gas will enter the filter box 23 again. At this time, the impurities will be retained in the filter box 23, and the gas will enter the fan 18 again for use.

[0033] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change;

[0034] Secondly: In the attached drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments of the present disclosure are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0035] Finally: The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A high-temperature quartz sand cooling and waste heat recovery device, comprising a sealed top cover (1), characterized in that: The lower surface of the sealed top cover (1) is snap-connected to the upper surface of the processing housing (2). The lower surface of the inner wall of the processing housing (2) is fixedly connected to the lower surfaces of three processing chambers (3) respectively. A screw rod (4) is arranged in the processing chamber (3). The screw rod (4) is composed of a screw blade and a connecting rod. The bottom end of the screw rod (4) passes through the filter baffle (5) and is drivingly connected to the top end of the fan blade (6). The lower surface of the filter baffle (5) is fixedly connected to the lower surface of the inner wall of the processing chamber (3). A bearing (7) is sleeved on the outer surface of the fan blade (6). The outer surface of the bearing (7) is fixedly connected to the inner wall of the bearing cage (8). The outer surface of the bearing cage (8) is fixedly connected to the inner wall of the first sealing cover (9). The upper surface of the first sealing cover (9) is fixedly connected to the lower surface of the processing chamber (3); A through hole is formed in the lower surface of the processing chamber (3). The processing chamber (3) is communicated with the first sealing cover (9) through the through hole. The lower surface of the first sealing cover (9) is communicated with the top end of the first conduit (10). The other end of the first conduit (10) is communicated with the right end of the second conduit (12). The outer surface of the first conduit (10) is fixedly connected to the inner wall of the positioning block (11). The lower surface of the positioning block (11) is fixedly connected to the lower surface of the inner wall of the processing housing (2). The other end of the second conduit (12) is respectively communicated with the top ends of two third conduits (13) through an elbow and a tee. The bottom end of the third conduit (13) is fixedly connected to the upper surface of the second sealing cover (14). The first conduit (10) is communicated with the second sealing cover (14) through the second conduit (12) and the third conduit (13). The lower surface of the second sealing cover (14) is fixedly connected to the lower surface of the inner wall of the processing housing (2). A drain pipe (15) is arranged in the second sealing cover (14); The left end of the drain pipe (15) is communicated with the right side surface of the transfer box (17). The right end of the drain pipe (15) is communicated with the left side surface of the processing chamber (3). A plurality of heat dissipation fins (16) are fixedly connected to the outer surface of the drain pipe (15), and the plurality of heat dissipation fins (16) are evenly distributed on the outer surface of the drain pipe (15); Three air blowers (18) are fixedly connected to the lower surface of the inner wall of the processing housing (2), and the three air blowers (18) are respectively located in the three second sealing covers (14). The air inlet of the air blower (18) is communicated with the top end of the first air inlet pipe (20). The other end of the first air inlet pipe (20) passes through the base (19) and is communicated with the bottom end of the second air inlet pipe (21).

2. The high-temperature quartz sand cooling and waste heat recovery device according to claim 1, wherein: The upper surface of the base (19) is fixedly connected to the lower surface of the processing housing (2). The top ends of the three second air inlet pipes (21) are communicated with the same joint (22) through a connecting pipe. One end of the front surface of the joint (22) is communicated with the back surface of the filter box (23). The lower surface of the filter box (23) is fixedly connected to the upper surface of the sealed top cover (1).

3. The high-temperature quartz sand cooling and waste heat recovery device according to claim 2, wherein: Two exhaust holes (25) are provided on the upper surface of the sealing top cover (1), and clamping grooves are provided on the left and right side surfaces of the inner walls of the two exhaust holes (25). Rotating devices (26) are clamped in the clamping grooves formed inside the exhaust holes (25). One ends of the opposite surfaces of the two corresponding rotating devices (26) are fixedly connected to the left and right side surfaces of the same filtering wheel (27).

4. A high-temperature quartz sand cooling and waste heat recovery device according to claim 3, characterized in that: The rotating device (26) is composed of a bearing and a rotating shaft. The outer surface of the filtering wheel (27) is lapped with the inner wall of the third sealing cover (24). The lower surface of the third sealing cover (24) is fixedly connected to the upper surface of the sealing top cover (1). The outer surface of the third sealing cover (24) is communicated with the right side surface of the filtering box (23) through a connecting pipe.

5. A high-temperature quartz sand cooling and waste heat recovery device according to claim 1, characterized in that: The lower surface of the inner wall of the processing housing (2) is fixedly connected to the lower surface of the cooling box (28). The upper surface of the cooling box (28) is communicated with the bottom ends of a plurality of first infusion pipes (29). The other ends of the plurality of first infusion pipes (29) are respectively communicated with the right ends of six second infusion pipes (30). The left ends of the two corresponding second infusion pipes (30) are fixedly connected to the right side surface of the same processing box (3).

6. The high-temperature quartz sand cooling and waste heat recovery device according to claim 5, characterized in that: A valve (31) is fixedly connected to the right side surface of the cooling box (28). The inside of the cooling box (28) is communicated with the right ends of two T-shaped return pipes (32). One front end and one back end of the return pipe (32) are respectively communicated with the opposite surfaces of two transfer boxes (17). The lower surfaces of the three transfer boxes (17) are all fixedly connected to the lower surface of the inner wall of the processing housing (2). Water pumps are arranged in both the cooling box (28) and the transfer box (17).

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