A heat exchange device for the production of high-performance silica white

Abstract

The present invention relates to the technical field of heat exchange devices, and discloses a heat exchange device for the production of high-performance silica white, including: a heat exchange housing, a cover plate, and heat exchange tubes. A cover plate is provided at the top of the heat exchange housing. A heat-conducting inner cylinder is provided in the middle of the heat exchange housing. An upper support plate and a lower support plate are provided between the heat-conducting inner cylinder and the heat exchange housing. Heat exchange tubes are provided between the upper support plate and the lower support plate. A first water inlet and a first water outlet are provided on one side of the heat exchange housing. The first water outlet is located below the lower support plate. A second water inlet and a second water outlet are also provided on one side of the outer wall of the heat exchange housing. In the present invention, the heat exchange tubes are penetrated, the second fluid enters and exits through the second water inlet and the second water outlet, the first fluid exchanges heat with the second fluid through the heat exchange tubes, and the second fluid directly contacts the outer wall of the heat-conducting inner cylinder, with a large contact area, which is beneficial to heat exchange. By controlling the temperature of the second fluid, the washing temperature of the silica white is controlled.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchange devices, and specifically to a heat exchange device for the production of high-performance silica white Background Technique

[0002] Silica white is a powder of amorphous silica. It has high purity and special physical and chemical properties, so it is widely used in many industries. High-performance silica white usually has high purity and extremely low impurity content. In the production process of silica white, the heat exchange device is one of the very crucial equipment, because whether it is the precipitation method or the gas-phase method for producing silica white, heat exchange is required to control the reaction temperature and ensure product quality and production safety.

[0003] For example, the existing Chinese patent (CN218916011U) discloses a heat exchange device for the production of high-performance silica white, including an outer cylinder body. A middle part of the inner cavity of the outer cylinder body is provided with an inner cylinder body. A filter plate is installed between inner walls of the inner cylinder body. A feed pipe is communicated with a side wall below the outer cylinder body, and a discharge pipe is communicated with a side wall above the outer cylinder body. A transmission washing device is installed in the inner cavity of the inner cylinder body. Water outlet grooves are correspondingly opened at bottoms of the inner cylinder body and the outer cylinder body. An air inlet is opened at the bottom of the outer cylinder body, and an air outlet is opened at a side wall of the outer cylinder body. A spiral heat exchange pipe is fixedly installed on an outer wall of the inner cylinder body. A plurality of pipe clamps are installed in cooperation with an outer wall of the spiral heat exchange pipe. Through the arrangement of the spiral heat exchange pipe, hot gas is introduced into the device to achieve the heat exchange function, and the heat exchange effect during washing is further enhanced through the cooperation of the transmission washing device.

[0004] In the above technical solution, the spiral heat exchange pipe is used for heat exchange, but the contact area between the spiral heat exchange pipe and the inner cylinder body is small, which affects the heat exchange efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a heat exchange device for the production of high-performance silica white to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present invention provides the following technical solution: A heat exchange device for the production of high-performance silica, comprising: a heat exchange housing, a cover plate, and heat exchange tubes. A cover plate is provided at the top of the heat exchange housing. A heat-conducting inner cylinder is provided in the middle of the heat exchange housing. An upper support plate and a lower support plate are provided between the heat-conducting inner cylinder and the heat exchange housing. Heat exchange tubes are provided between the upper support plate and the lower support plate. A first water inlet and a first water outlet are provided on one side of the heat exchange housing. The first water inlet is above the upper support plate, and the first water outlet is below the lower support plate. A second water inlet and a second water outlet are also provided on the outer wall of one side of the heat exchange housing. The second water inlet is below the upper support plate, and the second water outlet is above the lower support plate. An elastic airbag is provided on the inner wall of the heat-conducting inner cylinder. The elastic airbag is located outside the pressure wheel. A piston cylinder is provided on the outer wall of one side of the elastic airbag. A piston rod is provided inside the piston cylinder. A return spring is provided outside the piston rod. A rubber seal is provided between one end of the piston cylinder and the outer wall of the piston rod. A blade is provided at one end of the piston rod.

[0007] As a further description of the present invention, a driving motor is provided at the center of the top of the cover plate. A main shaft is provided at the bottom end of the output shaft of the driving motor. Stirring rods are provided on the outer wall of the main shaft. There are several stirring rods, and several of the stirring rods are arranged in layers on the main shaft. A feed inlet is provided on one side of the top of the cover plate. Laminated plates are provided inside the heat-conducting inner cylinder. There are several laminated plates, and several of the laminated plates are arranged on the upper and lower sides of the stirring rods.

[0008] As a further description of the present invention, a pressure wheel is provided at one end of the stirring rod, and the outer wall of the pressure wheel is in contact with the inner wall of the heat-conducting inner cylinder.

[0009] As a further description of the present invention, one end of the return spring is fixedly connected to the piston cylinder, and the other end of the return spring is fixedly connected to the piston rod.

[0010] As a further description of the present invention, a bottom plate is provided on the inner wall of the bottom of the heat-conducting inner cylinder. The bottom plate is in a shape with a high middle and low around. A water outlet valve is provided on one side of the bottom of the bottom plate, and a discharge valve is provided on the other side.

[0011] As a further description of the present invention, a scraper is provided on the outer wall of the bottom of the main shaft, and the bottom surface of the scraper is in contact with the top surface of the bottom plate.

[0012] As a further description of the present invention, there are several heat exchange tubes, and several of the heat exchange tubes are circumferentially and uniformly arranged inside the upper support plate.

[0013] As a further description of the present invention, the elastic airbag is made of rubber material, the elastic airbag is in an inflated state, and one side of the elastic airbag protrudes from the inner wall of the heat-conducting inner cylinder.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] Through the heat exchange tubes, heat-conducting inner cylinder, and piston cylinder provided in the present invention, during the production process of high-performance silica white, when it is necessary to wash the high-performance silica white, heat exchange is carried out through the device of the present invention to help control the temperature of the washing liquid and keep it within a temperature range conducive to removing impurities.

[0016] During the washing process of high-performance silica white, high-performance silica white and washing water are placed in the heat-conducting inner cylinder. At this time, both the water outlet valve and the discharge valve are in a closed state. The first fluid enters and exits through the first water inlet and the first water outlet. During the process of entering and exiting, the first fluid penetrates through the heat exchange tubes. The second fluid enters and exits through the second water inlet and the second water outlet. The first fluid exchanges heat with the second fluid through the heat exchange tubes. The second fluid directly contacts the outer wall of the heat-conducting inner cylinder, and the contact area is large, which is conducive to heat exchange. By controlling the temperature of the second fluid, the washing temperature of the silica white is thus controlled.

[0017] During the washing process, the driving motor drives the main shaft to rotate, thereby driving the stirring rod fixed on the main shaft to rotate and stir and wash the silica white. During the washing process, the stirring rod drives the pressing wheel to roll cyclically on the inner wall of the heat-conducting drum. When the pressing wheel contacts the elastic airbag, the pressing wheel will exert pressure on the elastic airbag, causing the air inside the elastic airbag to press towards the piston rod, causing the piston rod to move towards the side away from the piston cylinder. At this time, the return spring is stretched under force, driving the blade to move accordingly, generating a disturbing and stirring effect on the second fluid, promoting the temperature uniformity of the second fluid, and thus improving the heat exchange effect.

[0018] After the washing of the silica white is completed, first open the water outlet valve. The water outlet valve is equipped with a filter screen, which can allow the washed wastewater to drain out while the silica white remains above the bottom plate. When the wastewater has drained out, open the discharge valve, and cooperate with the rotation of the scraper to successively discharge the silica white in the heat-conducting inner cylinder.

[0019] Parts not involved in this device are the same as or can be implemented using existing technologies. Description of the Drawings

[0020] Figure 1 Is a three-dimensional view of a heat exchange device for the production of high-performance silica white according to the present invention;

[0021] Figure 2 Is a three-dimensional view of the internal structure of a heat exchange device for the production of high-performance silica white according to the present invention;

[0022] Figure 3 Is a three-dimensional view of another perspective of the internal structure of a heat exchange device for the production of high-performance silica white according to the present invention;

[0023] Figure 4The front view of a heat exchange device for the production of high-performance silica white of the present invention;

[0024] Figure 5 The left internal structure view of a heat exchange device for the production of high-performance silica white of the present invention;

[0025] Figure 6 The top internal structure view of a heat exchange device for the production of high-performance silica white of the present invention;

[0026] Figure 7 The main sectional view of a heat exchange device for the production of high-performance silica white of the present invention;

[0027] Figure 8 is Figure 7 The enlarged structural schematic diagram at A in;

[0028] Figure 9 The left sectional view of a heat exchange device for the production of high-performance silica white of the present invention;

[0029] Figure 10 is Figure 9 The enlarged structural schematic diagram at B in.

[0030] In the figure: 1. Heat exchange housing; 2. Cover plate; 3. Driving motor; 4. Feed inlet; 5. First water inlet; 6. First water outlet; 7. Second water inlet; 8. Second water outlet; 9. Main shaft; 10. Stirring rod; 11. Heat conduction inner cylinder; 12. Elastic airbag; 13. Upper support plate; 14. Lower support plate; 15. Heat exchange tube; 16. Pressing wheel; 17. Bottom plate; 18. Water outlet valve; 19. Discharge valve; 20. Laminate; 21. Piston cylinder; 22. Piston rod; 23. Blade; 24. Return spring; 25. Scraper. Detailed implementation manners

[0031] 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.

[0032] Embodiment 1: Please refer to Figures 1 - 4, the present invention provides a technical solution: a heat exchange device for the production of high-performance silica, comprising: a heat exchange housing 1, a cover plate 2 and heat exchange tubes 15. A cover plate 2 is fixed to the top of the heat exchange housing 1. A heat-conducting inner cylinder 11 is welded in the middle of the heat exchange housing 1. The heat-conducting inner cylinder 11 is made of corrosion-resistant stainless steel or can be coated with a corrosion-resistant coating to prevent the acid, alkali and other soluble impurities remaining on the silica from corroding the heat-conducting inner cylinder 11. There are an upper support plate 13 and a lower support plate 14 between the heat-conducting inner cylinder 11 and the heat exchange housing 1. There are heat exchange tubes 15 between the upper support plate 13 and the lower support plate 14. There are several heat exchange tubes 15, and several heat exchange tubes 15 are circumferentially and evenly arranged inside the upper support plate 13.

[0033] During the production process of high-performance silica, when it is necessary to wash the high-performance silica, heat exchange is carried out through the device of the present invention to help control the temperature of the washing liquid and keep it within a temperature range conducive to removing impurities; the heat exchange tubes 15 are key components for heat exchange, and heat can be transferred from one medium to another through these tubes. During the washing process of silica, the heat exchange tubes 15 are mainly used to control the temperature of the washing liquid to ensure that the washing process is carried out at an appropriate temperature.

[0034] One side of the heat exchange housing 1 is provided with a first water inlet 5 and a first water outlet 6. The first water inlet 5 is located above the upper support plate 13, and the first water outlet 6 is located below the lower support plate 14. On one side of the outer wall of the heat exchange housing 1, a second water inlet 7 and a second water outlet 8 are also provided. The second water inlet 7 is located below the upper support plate 13, and the second water outlet 8 is located above the lower support plate 14.

[0035] During the washing process of high-performance silica, high-performance silica and washing water are placed in the heat-conducting inner cylinder 11. At this time, the water outlet valve 18 and the discharge valve 19 are both in the closed state. The first fluid enters and exits through the first water inlet 5 and the first water outlet 6. During the process of entering and exiting, the first fluid passes through the heat exchange tubes 15. The second fluid enters and exits through the second water inlet 7 and the second water outlet 8. The first fluid exchanges heat with the second fluid through the heat exchange tubes 15. The second fluid directly contacts the outer wall of the heat-conducting inner cylinder 11, and the contact area is large, which is conducive to heat exchange. By controlling the temperature of the second fluid, the washing temperature of the silica is thus controlled;

[0036] At the center of the top of the cover plate 2, there is a driving motor 3. The driving motor 3 is the power source of the whole system, and drives the main shaft 9 to rotate through the rotation of its output shaft. The rotation speed of the motor can be adjusted to adapt to different washing requirements. At the bottom end of the output shaft of the driving motor 3, there is a fixed main shaft 9. The main shaft 9 is connected to the output shaft of the driving motor 3, and transmits the power of the motor to the stirring rod 10. On the outer wall of the main shaft 9, there are stirring rods 10. There are several stirring rods 10, and several stirring rods 10 are arranged in layers on the main shaft 9. The stirring rods 10 are fixed on the main shaft 9 and rotate together with the main shaft 9. Their main function is to stir and disperse the silica white, so that it can fully contact with the washing liquid, thereby effectively removing impurities.

[0037] On one side of the top of the cover plate 2, there is a feed inlet 4. The feed inlet 4 is located on one side of the cover plate 2 and is used to add silica white and washing liquid into the equipment.

[0038] Inside the heat-conducting inner cylinder 11, there are laminar plates 20. There are several laminar plates 20, and several laminar plates 20 are arranged on the upper and lower sides of the stirring rod 10. The heat-conducting inner cylinder 11 is the inner container of the equipment and is used to hold silica white and washing liquid. The material of the heat-conducting inner cylinder 11 usually has good heat-conducting performance, so as to facilitate temperature control through an external heat exchanger. In addition, the setting of the laminar plates 20 increases the contact area between the heat-conducting inner cylinder 11 and the washing liquid, and is convenient for controlling the washing temperature through the temperature of the heat-conducting inner cylinder 11 and the second fluid. During the washing process, the driving motor 3 drives the main shaft 9 to rotate, thereby driving the stirring rod 10 fixed on the main shaft 9 to rotate, and stirring and washing the silica white.

[0039] Embodiment 2: Please refer to Figures 1 - 10 , the present invention provides a technical solution: a heat exchange device for high-performance silica white production, including: a heat exchange housing 1, a cover plate 2 and heat exchange tubes 15. The cover plate 2 is fixed on the top of the heat exchange housing 1. In the middle of the heat exchange housing 1, there is a welded heat-conducting inner cylinder 11. The heat-conducting inner cylinder 11 is made of corrosion-resistant stainless steel or can be coated with a corrosion-resistant coating on it, so as to avoid the corrosion of the heat-conducting inner cylinder 11 caused by the acid, alkali and other soluble impurities remaining on the silica white. Between the heat-conducting inner cylinder 11 and the heat exchange housing 1, there are an upper support plate 13 and a lower support plate 14. Between the upper support plate 13 and the lower support plate 14, there are heat exchange tubes 15. There are several heat exchange tubes 15, and several heat exchange tubes 15 are evenly arranged circumferentially inside the upper support plate 13.

[0040] During the production process of high-performance silica white, when it is necessary to wash the high-performance silica white, heat exchange is carried out through the device of the present invention to help control the temperature of the washing liquid and keep it within a temperature range conducive to removing impurities; the heat exchange tubes 15 are key components for heat exchange, and heat can be transferred from one medium to another through these pipes. During the washing process of silica white, the heat exchange tubes 15 are mainly used to control the temperature of the washing liquid to ensure that the washing process is carried out at an appropriate temperature.

[0041] One side of the heat exchange housing 1 is provided with a first water inlet 5 and a first water outlet 6. The first water inlet 5 is located above the upper support plate 13, and the first water outlet 6 is located below the lower support plate 14. On one side of the outer wall of the heat exchange housing 1, a second water inlet 7 and a second water outlet 8 are also provided. The second water inlet 7 is located below the upper support plate 13, and the second water outlet 8 is located above the lower support plate 14.

[0042] During the washing process of high-performance silica, high-performance silica and washing water are placed in the heat-conducting inner cylinder 11. At this time, both the water outlet valve 18 and the discharge valve 19 are in the closed state. The first fluid enters and exits through the first water inlet 5 and the first water outlet 6. During the process of entering and exiting, the first fluid passes through the heat exchange tubes 15. The second fluid enters and exits through the second water inlet 7 and the second water outlet 8. The first fluid exchanges heat with the second fluid through the heat exchange tubes 15. The second fluid directly contacts the outer wall of the heat-conducting inner cylinder 11, and the contact area is large, which is beneficial to heat exchange. By controlling the temperature of the second fluid, the washing temperature of the silica can be controlled.

[0043] In the center of the top of the cover plate 2, a driving motor 3 is provided. The driving motor 3 is the power source of the whole system and drives the main shaft 9 to rotate through the rotation of its output shaft. The rotation speed of the motor can be adjusted to meet different washing requirements. At the bottom end of the output shaft of the driving motor 3, a main shaft 9 is fixed. The main shaft 9 is connected to the output shaft of the driving motor 3 to transmit the power of the motor to the stirring rod 10. On the outer wall of the main shaft 9, there are several stirring rods 10. The several stirring rods 10 are arranged in layers on the main shaft 9. The stirring rods 10 are fixed on the main shaft 9 and rotate together with the main shaft 9. Their main functions are to stir and disperse the silica so that it can fully contact the washing liquid, thereby effectively removing impurities.

[0044] On one side of the top of the cover plate 2, a feed inlet 4 is provided. The feed inlet 4 is located on one side of the cover plate 2 and is used to add silica and washing liquid into the equipment.

[0045] Inside the heat-conducting inner cylinder 11, there are several laminar plates 20. The several laminar plates 20 are arranged on the upper and lower sides of the stirring rod 10. The heat-conducting inner cylinder 11 is the internal container of the equipment and is used to hold silica and washing liquid. The material of the heat-conducting inner cylinder 11 usually has good heat-conducting performance, so as to facilitate temperature control through an external heat exchanger. In addition, the setting of the laminar plates 20 increases the contact area between the heat-conducting inner cylinder 11 and the washing liquid, which is convenient for controlling the washing temperature through the temperature of the heat-conducting inner cylinder 11 and the second fluid. During the washing process, the driving motor 3 drives the main shaft 9 to rotate, thereby driving the stirring rod 10 fixed on the main shaft 9 to rotate, and stirring and washing the silica.

[0046] In this embodiment, a pressure wheel 16 is provided at one end of the stirring rod 10, and the outer wall of the pressure wheel 16 is in contact with the inner wall of the heat-conducting inner cylinder 11. The pressure wheel 16 is installed at one end of the stirring rod 10 and rotates together with the stirring rod 10. The outer wall of the pressure wheel 16 is in contact with the inner wall of the heat-conducting inner cylinder 11, and by rotating, it generates pressure to push the air in the elastic airbag 12 to move. The inner wall of the heat-conducting inner cylinder 11 is provided with an elastic airbag 12. The elastic airbag 12 is located outside the pressure wheel 16 and is installed on the inner wall of the heat-conducting inner cylinder 11, outside the pressure wheel 16. When the pressure wheel 16 contacts the elastic airbag 12, the elastic airbag 12 is compressed and the air inside is squeezed.

[0047] On one outer wall of the elastic airbag 12, there is a piston cylinder 21, and a piston rod 22 is provided inside the piston cylinder 21. The piston cylinder 21 is installed on one side of the elastic airbag 12 and the piston rod 22 is provided inside. The piston cylinder 21 and the piston rod 22 together form a pneumatic system for converting the pressure in the elastic airbag 12 into mechanical motion. When the air in the elastic airbag 12 is squeezed, the piston rod 22 is pushed to move outward, driving the blade 23 to move.

[0048] A rubber sealing sleeve is provided between one end of the piston cylinder 21 and the outer wall of the piston rod 22. The rubber sealing sleeve is installed between one end of the piston cylinder 21 and the outer wall of the piston rod 22 to ensure the airtightness inside the piston cylinder 21 and prevent air leakage. One end of the piston rod 22 is provided with a blade 23. The blade 23 is installed at one end of the piston rod 22. When the piston rod 22 moves, the blade 23 moves accordingly, disturbing the second fluid and promoting the mixing and temperature uniformity of the fluid.

[0049] A return spring 24 is provided outside the piston rod 22. One end of the return spring 24 is fixedly connected to the piston cylinder 21, and the other end of the return spring 24 is fixedly connected to the piston rod 22. The return spring 24 is installed outside the piston rod 22, with one end fixedly connected to the piston cylinder 21 and the other end fixedly connected to the piston rod 22. When the pressure wheel 16 leaves the elastic airbag 12, the return spring 24 returns to its original state, pulling the piston rod 22 back to its original position and making the blade 23 return to its initial position, preparing for the next cycle.

[0050] During the washing process, the stirring rod 10 drives the pressure wheel 16 to roll cyclically on the inner wall of the heat-conducting inner cylinder 11. When the pressure wheel 16 contacts the elastic airbag 12, the pressure wheel 16 will exert pressure on the elastic airbag 12, causing the air inside the elastic airbag 12 to be pressed towards the piston rod 22, making the piston rod 22 move towards the side away from the piston cylinder 21. At this time, the return spring 24 is stretched under force, driving the blade 23 to move accordingly, disturbing and stirring the second fluid, promoting the temperature uniformity of the second fluid, and thus improving the heat exchange effect. Through this design, not only can the washing process of silica be efficiently completed, but also the temperature control during the heat exchange process can be made more accurate and uniform, thereby improving the overall production efficiency and product quality.

[0051] The inner wall of the bottom of the heat-conducting inner cylinder 11 is provided with a bottom plate 17. The bottom plate 17 is in a shape with a high middle and low surrounding. After the washing is completed, first open the water outlet valve 18. Since the bottom plate 17 is in a shape with a high middle and low surrounding, the wastewater will naturally flow towards the water outlet valve 18. The filter screen on the water outlet valve 18 can effectively block the silica white particles, ensuring that only the wastewater is discharged. One side of the bottom of the bottom plate 17 is provided with the water outlet valve 18, and the other side is provided with a discharge valve 19. After the silica white washing is completed, first open the water outlet valve 18. The water outlet valve 18 is equipped with a filter screen, which can allow the washed wastewater to be discharged while the silica white remains above the bottom plate 17. When the wastewater is discharged, open the discharge valve 19, and cooperate with the rotation of the scraper 25 to successively discharge the silica white in the heat-conducting inner cylinder 11. Through this design, not only can the washing process of silica white be completed efficiently, but also the separation and discharge processes of the washed wastewater and silica white can be efficient and reliable, thereby improving the overall production efficiency and product quality.

[0052] The outer wall of the bottom of the main shaft 9 is provided with a scraper 25. The bottom surface of the scraper 25 is in contact with the top surface of the bottom plate 17. When the main shaft 9 rotates, the scraper 25 also rotates accordingly, pushing the silica white on the bottom plate 17 towards the discharge valve 19.

[0053] The elastic airbag 12 is made of rubber material. The elastic airbag 12 is in an inflated state, and one side of the elastic airbag 12 protrudes from the inner wall of the heat-conducting inner cylinder 11. The elastic airbag 12 is made of rubber material, having good elasticity and durability. The elastic airbag 12 is in an inflated state, filled with air inside, making it have a certain expansibility and elasticity. One side of the elastic airbag 12 protrudes from the inner wall of the heat-conducting inner cylinder 11, so as to ensure that the pressure wheel 16 can more effectively contact the elastic airbag 12 during rotation, generating a greater pressure.

[0054] During the production process of high-performance silica white, when high-performance silica white needs to be washed, heat exchange is carried out through the device of the present invention to help control the temperature of the washing liquid and keep it within a temperature range beneficial to removing impurities.

[0055] During the washing process of high-performance silica white, high-performance silica white and washing water are placed in the heat-conducting inner cylinder 11. At this time, both the water outlet valve 18 and the discharge valve 19 are in a closed state. The first fluid enters and exits through the first water inlet 5 and the first water outlet 6. During the process of entering and exiting, the first fluid penetrates through the heat exchange tube 15. The second fluid enters and exits through the second water inlet 7 and the second water outlet 8. The first fluid exchanges heat with the second fluid through the heat exchange tube 15. The second fluid is directly in contact with the outer wall of the heat-conducting inner cylinder 11, with a large contact area, which is beneficial to heat exchange. By controlling the temperature of the second fluid, the washing temperature of the silica white is thus controlled.

[0056] During the washing process, the driving motor 3 drives the main shaft 9 to rotate, thereby driving the stirring rod 10 fixed on the main shaft 9 to rotate, and stirring and washing the silica white. During the washing process, the stirring rod 10 drives the pressing wheel 16 to roll cyclically on the inner wall of the heat-conducting inner cylinder 11. When the pressing wheel 16 contacts the elastic airbag 12, the pressing wheel 16 will exert a pressure on the elastic airbag 12, causing the air inside the elastic airbag 12 to press towards the piston rod 22, so that the piston rod 22 moves towards the side away from the piston cylinder 21. At this time, the return spring 24 is stretched under force, driving the blade 23 to move accordingly, generating a disturbing and stirring effect on the second fluid, promoting the temperature uniformity of the second fluid, and thus improving the heat exchange effect;

[0057] After the silica white washing is completed, first open the water outlet valve 18. The water outlet valve 18 is equipped with a filter net, which can allow the washed wastewater to drain out while the silica white remains above the bottom plate 17. When the wastewater has drained out, open the discharge valve 19, and cooperate with the rotation of the scraper 25 to successively discharge the silica white in the heat-conducting inner cylinder 11.

[0058] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

Claims

1. A heat exchange device for high-performance white carbon black production, comprising: A heat exchange shell (1), a cover plate (2) and a heat exchange tube (15), characterized in that: a cover plate (2) is provided on the top of the heat exchange shell (1), a heat-conducting inner tube (11) is provided in the middle of the heat exchange shell (1), an upper support plate (13) and a lower support plate (14) are provided between the heat-conducting inner tube (11) and the heat exchange shell (1), a heat exchange tube (15) is provided between the upper support plate (13) and the lower support plate (14), and a first water inlet (5) and a first water outlet (6) are provided on one side of the heat exchange shell (1), the first water inlet (5) is located above the upper support plate (13), and the first water outlet (6) is located above the upper support plate (13). Located below the lower support plate (14), a second water inlet (7) and a second water outlet (8) are also provided on one side of the outer wall of the heat exchange shell (1), the second water inlet (7) is located below the upper support plate (13), and the second water outlet (8) is located above the lower support plate (14); an elastic airbag (12) is provided on the inner wall of the heat-conducting inner cylinder (11), the elastic airbag (12) is located outside the pressure wheel (16), a piston cylinder (21) is provided on the outer wall of one side of the elastic airbag (12), a piston rod (22) is provided inside the piston cylinder (21), and a return spring (24) is provided on the outside of the piston rod (22); A rubber sealing sleeve is provided between one end of the piston cylinder (21) and the outer wall of the piston rod (22), and a blade (23) is provided at one end of the piston rod (22).

2. A heat exchange device for high-performance white carbon black production according to claim 1, characterized in that: A driving motor (3) is provided at the center of the top of the cover plate (2), a main shaft (9) is provided at the bottom end of the output shaft of the driving motor (3), a stirring rod (10) is provided on the outer wall of the main shaft (9), and there are a plurality of stirring rods (10), and the plurality of stirring rods (10) are arranged in layers on the main shaft (9), a feed port (4) is provided on one side of the top of the cover plate (2), and a layer plate (20) is provided inside the heat-conducting inner cylinder (11), and there are a plurality of layer plates (20), and the plurality of layer plates (20) are arranged on the upper and lower sides of the stirring rod (10).

3. A heat exchange device for high-performance white carbon black production according to claim 2, characterized in that: A pressure wheel (16) is provided at one end of the stirring rod (10), and the outer wall of the pressure wheel (16) is in contact with the inner wall of the heat-conducting inner cylinder (11).

4. A heat exchange device for high-performance white carbon black production according to claim 3, characterized in that: One end of the return spring (24) is fixedly connected to the piston cylinder (21), and the other end of the return spring (24) is fixedly connected to the piston rod (22).

5. A heat exchange device for high-performance white carbon black production according to claim 4, characterized in that: A bottom plate (17) is provided on the inner wall of the bottom of the heat-conducting inner cylinder (11). The bottom plate (17) is high in the middle and low around. A water outlet valve (18) is provided on one side of the bottom of the bottom plate (17), and a material outlet valve (19) is provided on the other side.

6. A heat exchange device for high-performance white carbon black production according to claim 5, characterized in that: A scraper (25) is provided on the outer wall of the bottom of the main shaft (9), and the bottom surface of the scraper (25) is in contact with the top surface of the bottom plate (17).

7. A heat exchange device for high-performance white carbon black production according to claim 6, characterized in that: There are a plurality of heat exchange tubes (15), and the plurality of heat exchange tubes (15) are evenly arranged in a circumferential direction inside the upper support plate (13).

8. A heat exchange device for high-performance white carbon black production according to claim 7, characterized in that: The elastic airbag (12) is made of rubber, the elastic airbag (12) is in an inflated state, and one side of the elastic airbag (12) protrudes from the inner wall of the heat-conducting inner cylinder (11).

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