Full-automatic drying equipment for granulating insulating carbon black

Abstract

The invention relates to the field of carbon black processing, and discloses full-automatic drying equipment for insulating carbon black granulation, which comprises a device body, the top of the device body is provided with a feed inlet, a support cylinder and a hot-air blower, the top of the hot-air blower is provided with a motor, and an output shaft of the motor is provided with a ventilation shaft; and the ventilation shaft is rotationally mounted on the inner wall of the device body. According to the device, hot air is discharged at a high speed along the second through opening formed in the outer surface of the ventilation shaft and horizontally aligned with carbon black particles, so that the carbon black particles in the inner cavity of the device body are subjected to the hot air effect, water on the surfaces of the carbon black particles is rapidly evaporated, and then the hot air carrying water vapor and water is discharged through the exhaust outlet formed in the top of the outer surface of the device body; by means of the design, the drying effect of the device is remarkably enhanced, and meanwhile due to the fact that the vacuumizing technology of the traditional technology is replaced, the use and maintenance cost of the device is greatly reduced.

Description

Technical Field

[0001] The present application relates to the technical field of carbon black processing, and in particular to a fully automatic drying device for insulating carbon black granulation. Background Art

[0002] When manufacturing carbon black, the raw oil is first preheated and then sprayed into a reactor with a temperature of thousands of degrees. The tiny oil droplets are heated and react rapidly, thereby breaking down into carbon black particles. The carbon black particles will collide and combine with each other to form a chain structure. The generated carbon black particles are filtered and concentrated together. After treatment, carbon black powder is formed. In a granulator, the carbon black powder is mixed with water and molasses to form carbon black particles. At this time, the carbon black particles have a high water content and need to be dried. The use cost of the drying equipment in the existing technology is relatively high. Taking vertical drying equipment as an example, it is necessary to vacuum the equipment before drying to obtain the low-pressure environment required for drying. However, this method is costly and requires the equipment to be kept sealed. The water evaporated from the carbon black particles with a high water content during drying cannot be discharged in time, resulting in low drying efficiency, high energy consumption, high cost and other problems. Therefore, the present invention is committed to designing a fully automatic insulating carbon black granulation drying equipment with low use cost, smooth exhaust and high drying efficiency. Summary of the Invention

[0003] The present application proposes a fully automatic drying equipment for insulating carbon black granulation, which has the advantages of low cost and good drying effect, and is used to solve the problems of vacuuming cost and incomplete drying in the prior art.

[0004] To achieve the above-mentioned objectives, the present application adopts the following technical solution: a fully automatic drying device for insulating carbon black granulation, comprising a device body, a feed port, a support tube and a hot air blower installed on the top of the device body, a motor installed on the top of the hot air blower, a ventilation shaft installed on the output shaft of the motor, the ventilation shaft rotatably mounted on the inner wall of the device body, a discharge port installed on the right side of the bottom of the device body, an air outlet of the hot air blower communicated with the support tube, and a through-port located in the inner cavity of the support tube is opened on the outer surface of the ventilation shaft; Two through-openings are provided on both sides of the outer surface of the ventilation shaft, a connecting plate and a spiral sheet are fixedly connected to the left side of the outer surface of the ventilation shaft, multiple groups of support columns are fixedly connected to both ends of the outer surface of the ventilation shaft, a rotating shaft is rotatably installed at one end of the support column, a fixed cylinder is fixedly sleeved on the outer surface of the rotating shaft, multiple groups of fan blades are fixedly connected to the outer surface of the fixed cylinder, and multiple groups of exhaust outlets are provided on the top of the outer surface of the device body.

[0005] Preferably, a support ring is fixedly installed on the bottom of the outer surface of the ventilation shaft, and a sleeve located on the top of the support ring is movably sleeved on the outer surface of the ventilation shaft. Pair grooves are provided on the left and right sides of the sleeve, and the pair of grooves and the second through-port are staggered with each other. A connecting block 1 is fixedly connected to the top of the sleeve, and a connecting block 2 is fixedly connected to the outer surface of the ventilation shaft, and a spring is elastically connected between the connecting block 2 and the connecting block 1.

[0006] Preferably, a gear 1 is fixedly mounted on the top of the inner wall of the device body, and a gear 2 is fixedly mounted on the top end of the rotating shaft, and the gear 2 is meshed with the outer surface of the gear 1.

[0007] Preferably, the top of the inner cavity of the device body is fixedly connected to a limiting ring 2 located outside the gear 2, and the top of the inner wall of the device body is fixedly connected to a limiting ring 1 located outside the limiting ring 2, and the axial cross-section shape of the limiting ring 1 is "L"-shaped.

[0008] Preferably, a windshield is fixedly connected to the top of the outer surface of the device body, the axial cross-section of the windshield is "L"-shaped, and the windshield covers the outside of the air outlet.

[0009] Preferably, the bottom of the limiting ring 1 is flush with the bottom of the limiting ring 2 and is higher than the spiral sheet, and a gap is left between the inner ring surface of the limiting ring 1 and the outer ring surface of the limiting ring 2.

[0010] Preferably, the ventilation shaft passes through the interior of the support tube, and the ventilation shaft sealing sleeve is arranged on the inner wall of the support tube.

[0011] Preferably, the spiral piece rotates and abuts against the inner wall of the device body, and the number of the connecting plates is two groups, which are fixedly connected to the upper and lower ends of the spiral piece respectively, and the bottom of the connecting plate on the lower side abuts against the bottom of the inner wall of the device body.

[0012] Preferably, the width of the pair of grooves is greater than the diameter of the second through-opening, and an angle of 45° is formed between the pair of grooves and the second through-opening.

[0013] Preferably, when the spring is compressed to its limit, the pair of grooves just coincide with the second through-opening.

[0014] The beneficial effects of the present invention are as follows: 1. This device has been redesigned to significantly enhance the drying effect of the device while effectively reducing costs. A motor is provided to drive the ventilation shaft to rotate, and the rotational power is transmitted to the connecting plate, spiral blades, support columns, rotating shafts, fixed cylinders and fan blades. When the carbon black particles enter the inner cavity of the device body, the spiral blades first rotate to continuously push the carbon black particles located at the edge of the inner cavity of the device body upward, and make the carbon black particles continue to move upward. At the same time, a hot air blower and a support cylinder are used to continuously inject high-temperature, high-pressure air into the inner cavity of the ventilation shaft. The hot air is discharged at high speed along the second opening opened on the outer surface of the ventilation shaft and horizontally aligned with the carbon black particles, so that the carbon black particles in the inner cavity of the device body are affected by the hot air, and the moisture on their surface evaporates rapidly. The hot air carrying water vapor and moisture is then discharged through the exhaust port opened on the top of the outer surface of the device body, realizing the external circulation function of the drying device. This design significantly enhances the drying effect of the device. At the same time, since the vacuum technology of the traditional technology is replaced, the use and maintenance costs of the device are greatly reduced.

[0015] 2. Then, the present invention has made perfect protection for the second passage, so that the second passage is automatically opened when the device is working, and the second passage is closed when it is not working, thereby preventing carbon black particles from entering the inner cavity of the ventilation shaft. The device has multiple sets of second passages on the left and right sides of the outer surface of the ventilation shaft, so that the hot air from the hot air blower can smoothly enter the inner cavity of the device body to perform the drying process. A set of sleeves are sleeved on the outer surface of the ventilation shaft, and the sleeve is used to seal the second passage. The two sets of grooves opened on the outer surface of the sleeve are just staggered with the second passage. When the motor drives the ventilation shaft and the second connecting block to rotate, inertia causes a speed difference between the ventilation shaft and the sleeve, and the speed is synchronized with the sleeve by the compression spring, so that the second passage is opened. When the ventilation shaft stops running, the spring drives the first connecting block to reset due to the loss of pressure brought by the rotation of the ventilation shaft, and the sleeve is reset, so that the grooves and the sleeve are staggered again, and the second passage is automatically blocked, thereby realizing the automatic opening and closing function of the second passage.

[0016] 3. Finally, the present device has further modified the rotating shaft and the fixed cylinder by installing gear 2 at the top of the rotating shaft and gear 1 meshing with gear 2 at the top of the inner cavity of the device body. When the ventilation shaft drives the support column, the rotating shaft and the fixed cylinder to revolve around the axis of gear 1, gear 2 is meshed with gear 1 and drives gear 2, the rotating shaft, the fixed cylinder and the fan blades to rotate. The rotation direction of the fixed cylinder and the fan blades is opposite to the revolution direction, thereby more thoroughly stirring the carbon black particles in the inner cavity of the device body and effectively preventing the carbon black particles from agglomerating. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application in a clear and understandable manner.

[0018] The present disclosure can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which: Figure 1 This is a schematic diagram of the front appearance of the overall structure of the present invention; Figure 2 It is a front cutaway schematic diagram of the overall structure of the present invention; Figure 3 For the present invention Figure 2 A magnified schematic diagram of the structure at center A; Figure 4 For the present invention Figure 2 A magnified schematic diagram of the structure at B in the middle; Figure 5 It is a side cutaway schematic diagram of the body structure of the present invention; Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at position C in the middle; Figure 7 This is a schematic structural diagram of the support cylinder, hot air blower, motor, spiral blades, support column, rotating shaft, fixed cylinder and fan blades of the present invention; Figure 8 For the present invention Figure 7 A magnified schematic diagram of the structure at D in the middle; Figure 9 It is a top view schematic cross-sectional view of the overall structure of the present invention; Figure 10 This is a schematic diagram of the separation of the ventilation shaft, sleeve, connecting block 1, spring and connecting block 2 of the present invention; Figure 11 It is a schematic diagram of the separation of the overall structure of the present invention.

[0019] Among them: 1. Device body; 2. Discharge port; 3. Wind shield; 4. Feed port; 5. Support cylinder; 6. Hot air blower; 7. Motor; 8. Exhaust port; 9. Limiting ring 1; 10. Limiting ring 2; 11. Ventilation shaft; 12. Through port 1; 13. Through port 2; 14. Gear 1; 15. Connecting plate; 16. Spiral sheet; 17. Support column; 18. Rotating shaft; 19. Fixed cylinder; 20. Fan blade; 21. Support ring; 22. Gear 2; 23. Sleeve; 24. Connecting block 1; 25. Spring; 26. Connecting block 2; 27. Matching groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0021] See also Figures 1-11 This embodiment discloses a fully automatic drying device for insulating carbon black granulation, including a device body 1. A feed port 4, a support tube 5, and a hot air blower 6 are installed on the top of the device body 1. A motor 7 is installed on the top of the hot air blower 6. A ventilation shaft 11 is installed on the output shaft of the motor 7. The ventilation shaft 11 is rotatably mounted on the inner wall of the device body 1. A discharge port 2 is installed on the right side of the bottom of the device body 1. The air outlet of the hot air blower 6 is connected to the support tube 5. The outer surface of the ventilation shaft 11 is provided with a through hole 12 located in the inner cavity of the support tube 5. A second through-opening 13 is provided on both sides of the outer surface of the ventilation shaft 11. A connecting plate 15 and a spiral sheet 16 are fixedly connected to the left side of the outer surface of the ventilation shaft 11. Both ends of the outer surface of the ventilation shaft 11 are fixedly connected to multiple groups of support columns 17. A rotating shaft 18 is rotatably mounted on one end of the support column 17. A fixed cylinder 19 is fixedly sleeved on the outer surface of the rotating shaft 18. Multiple groups of fan blades 20 are fixedly connected to the outer surface of the fixed cylinder 19. Multiple groups of exhaust ports 8 are provided on the top of the outer surface of the device body 1. The present device has been redesigned to significantly enhance the drying effect of the device while effectively reducing costs. A motor 7 is provided to drive the ventilation shaft 11 to rotate, and the rotational power is transmitted to the connecting plate 15, spiral blades 16, support columns 17, rotating shaft 18, fixed cylinder 19 and fan blades 20. When the carbon black particles enter the inner cavity of the device body 1, the spiral blades 16 first rotate to continuously push the carbon black particles located at the edge of the inner cavity of the device body 1 upward, and the carbon black particles continue to move upward. At the same time, the hot air blower 6 and the support cylinder 5 are used to continuously inject high-temperature, high-pressure air into the inner cavity of the ventilation shaft 11. The hot air is discharged at a high speed along the opening 2 13 opened on the outer surface of the ventilation shaft 11 and horizontally aligned with the carbon black particles, so that the carbon black particles in the inner cavity of the device body 1 are affected by the hot air, and the moisture on their surface evaporates rapidly. The hot air carrying water vapor and moisture is then discharged through the exhaust port 8 opened on the top of the outer surface of the device body 1, realizing the external circulation function of the device drying. This design significantly enhances the drying effect of the device. At the same time, since the vacuum extraction technology of the traditional technology is replaced, the use and maintenance costs of the device are greatly reduced.

[0022] Among them, a support ring 21 is fixedly installed on the bottom of the outer surface of the ventilation shaft 11, and a sleeve 23 located on the top of the support ring 21 is movably sleeved on the outer surface of the ventilation shaft 11. The left and right sides of the sleeve 23 are provided with grooves 27, and the grooves 27 and the second through-port 13 are staggered with each other. The top of the sleeve 23 is fixedly connected with a connecting block 1 24, and the outer surface of the ventilation shaft 11 is fixedly connected with a connecting block 26. A spring 25 is elastically connected between the connecting block 26 and the connecting block 1 24; The present invention has made perfect protection for the second opening 13, so that the second opening 13 is automatically opened when the device is working, and the second opening 13 is closed when it is not working, thereby preventing carbon black particles from entering the inner cavity of the ventilation shaft 11. The device has multiple sets of second openings 13 on both sides of the left and right sides of the outer surface of the ventilation shaft 11, so that the hot air from the hot air blower 6 can smoothly enter the inner cavity of the device body 1 to perform the drying process. A set of sleeves 23 are sleeved on the outer surface of the ventilation shaft 11, and the sleeves 23 are used to block the second opening 13. The two sets of grooves 27 on the outer surface of the sleeve 23 are provided. It is just staggered with the second passage 13. When the motor 7 drives the ventilation shaft 11 and the second connecting block 26 to rotate, inertia causes a speed difference between the ventilation shaft 11 and the sleeve 23, and the speed is synchronized by the compression spring 25 and the sleeve 23, so that the second passage 13 is opened. When the ventilation shaft 11 stops running, the spring 25 drives the connection block 1 24 to reset due to the loss of pressure brought by the rotation of the ventilation shaft 11, and the sleeve 23 is reset, so that the groove 27 and the sleeve 23 are staggered again, and the second passage 13 is automatically blocked, realizing the automatic opening and closing function of the second passage 13.

[0023] Among them, the top of the inner wall of the device body 1 is fixedly mounted with a gear 14, and the top of the rotating shaft 18 is fixedly mounted with a gear 22, which meshes with the outer surface of the gear 14; The present device has also further modified the rotating shaft 18 and the fixed cylinder 19 by installing a gear 2 22 at the top of the rotating shaft 18 and a gear 14 meshing with the gear 2 22 at the top of the inner cavity of the device body 1. When the ventilation shaft 11 drives the support column 17, the rotating shaft 18 and the fixed cylinder 19 to revolve around the axis of the gear 14, the gear 2 22 is engaged with the gear 14 and drives the gear 2 22, the rotating shaft 18, the fixed cylinder 19 and the fan blades 20 to rotate. The rotation direction of the fixed cylinder 19 and the fan blades 20 is opposite to the revolution direction, so that the carbon black particles in the inner cavity of the device body 1 are more thoroughly stir-fried, and the carbon black particles can be effectively prevented from agglomerating.

[0024] The top of the inner cavity of the device body 1 is fixedly connected to a limiting ring 2 10 located outside the gear 2 22, and the top of the inner wall of the device body 1 is fixedly connected to a limiting ring 1 9 located outside the limiting ring 2 10. The axial cross-section of the limiting ring 1 9 is "L"-shaped. Limiting ring 2 10 and limiting ring 1 9 are located at the top of the inner wall of the device body 1, and are used to block the carbon black particles pushed upward by the spiral blade 16, while the heated air carrying water vapor and steam is discharged along the exhaust port 8.

[0025] The top of the outer surface of the device body 1 is fixedly connected with a wind shield 3, the axial cross-section of the wind shield 3 is "L"-shaped, and the wind shield 3 covers the outer side of the exhaust port 8; The device produces hot air with high humidity from the inside and discharges it horizontally outwards from the exhaust port 8. The windshield 3 covers the outside of the exhaust port 8, which can guide the hot air downwards and affect the surrounding staff.

[0026] The bottom of the limiting ring 1 9 is flush with the bottom of the limiting ring 2 10 and is higher than the spiral piece 16 , and a gap is left between the inner ring surface of the limiting ring 1 9 and the outer ring surface of the limiting ring 2 10 ; While the limiting ring 1 9 and the limiting ring 2 10 block the carbon black particles pushed upward by the spiral sheet 16, they use the gap between them to allow hot air carrying moisture to pass through and be discharged out of the device, taking away the moisture in the carbon black particles.

[0027] The ventilation shaft 11 passes through the interior of the support tube 5, and the ventilation shaft 11 is sealed on the inner wall of the support tube 5; The interior of the ventilation shaft 11 is hollow, and the opening 12 and the opening 2 13 opened on the upper and lower sides of its outer surface are connected to each other. In the inner cavity of the support tube 5, the hot air produced by the hot air blower 6 enters the opening 12, and vertically downward along the inner cavity of the ventilation shaft 11, and finally discharged along the opening 2 13.

[0028] The spiral piece 16 rotates and abuts against the inner wall of the device body 1. The number of connecting plates 15 is two groups, and they are fixedly connected to the upper and lower ends of the spiral piece 16 respectively. The bottom of the lower connecting plate 15 abuts against the bottom of the inner wall of the device body 1. The spiral blade 16 is spiral in shape as a whole. When rotating, it can drive the carbon black particles upward along the inner wall edge of the device body 1, so that the upper, middle and lower distribution layers of the carbon black particles can change cyclically, effectively increasing the contact area between the carbon black particles and the air.

[0029] The width of the groove 27 is greater than the diameter of the second through-opening 13, and the groove 27 and the second through-opening 13 form an angle of 45°. When the groove 27 overlaps with the second opening 13, its size is larger than that of the second opening 13, which enables the second opening 13 to effectively play the role of injecting hot air and drying the carbon black particles.

[0030] When the spring 25 is compressed to its limit, the groove 27 and the second opening 13 just coincide with each other. When the spring 25 is compressed to its limit, the sleeve 23 rotates 45° relative to the ventilation shaft 11 . At this time, the second through-port 13 and the counter groove 27 just coincide with each other.

[0031] Working principle: When the device is working, first, open the feed port 4, pour the carbon black particles into the device body 1, close the feed port 4, start the motor 7, and drive the ventilation shaft 11, gear 22 and connecting block 26 to rotate, as shown in FIG. Figure 7As shown, the ventilation shaft 11 drives the support column 17, the rotating shaft 18 and the second gear 22 to revolve around the axis of the ventilation shaft 11, so that the second gear 22 is engaged with the first gear 14, thereby driving the second gear 22, the rotating shaft 18, the fixed cylinder 19 and the fan blade 20 to rotate synchronously. At the same time, the carbon black particles in the device body 1 are fully stirred, and then the spiral piece 16 is driven to rotate through the connecting plate 15 to push the carbon black particles located at the edge of the inner cavity of the device body 1 upward; Then, if Figure 8 、 Figure 9 and Figure 10 As shown in the figure, when the motor 7 drives the connecting block 26 to move toward the side close to the connecting block 1 24, the spring 25 is compressed due to the inertia of the sleeve 23, and the connecting block 26 and the connecting block 1 24 produce a relative angular displacement. At this time, the groove 27 is driven to a position that coincides with the opening 2 13, and as the ventilation shaft 11 continues to rotate, the overlapping position is maintained. Then, the hot air blower 6 is started and high-temperature and high-pressure gas is introduced into the inner cavity of the support tube 5, as shown in FIG. Figure 2 As shown, the hot air enters the inner cavity of the ventilation shaft 11 along the passage 12, and is sent into the inner cavity of the device body 1 through the passage 2 13. Since the diameter of the passage 2 13 is small, the speed of the hot air ejected along the passage 2 13 increases, and it continuously acts on the carbon black particles in the inner cavity of the device body 1. The hot air carries water vapor and moisture upward along the gap between the limiting ring 1 9 and the limiting ring 2 10 and is discharged to the exhaust port 8, and is promptly discharged downward under the guidance of the wind shield 3. In the inner cavity of the device body 1, due to the continuous rotation of the spiral sheet 16, the carbon black particles at the edge of the inner cavity of the device body 1 will be continuously transported upward, and then fall downward after reaching the highest point. The continuously revolving and rotating fan blades 20 continuously stir the carbon black particles in the middle, so that the contact area between the carbon black particles and the air is increased, thereby improving the drying speed of the device.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A fully automatic drying device for insulating carbon black granulation, comprising a device body (1), characterized in that: The top of the device body (1) is equipped with a feed port (4), a support tube (5) and a hot air blower (6); the top of the hot air blower (6) is equipped with a motor (7); the output shaft of the motor (7) is equipped with a ventilation shaft (11); the ventilation shaft (11) is rotatably mounted on the inner wall of the device body (1); a discharge port (2) is installed on the right side of the bottom of the device body (1); the air outlet of the hot air blower (6) is connected to the support tube (5); the outer surface of the ventilation shaft (11) is provided with a through port (12) located in the inner cavity of the support tube (5); A second opening (13) is provided on both sides of the outer surface of the ventilation shaft (11), a connecting plate (15) and a spiral sheet (16) are fixedly connected to the left side of the outer surface of the ventilation shaft (11), and multiple groups of support columns (17) are fixedly connected to both ends of the outer surface of the ventilation shaft (11), a rotating shaft (18) is rotatably mounted on one end of the support column (17), a fixed cylinder (19) is fixedly sleeved on the outer surface of the rotating shaft (18), and multiple groups of fan blades (20) are fixedly connected to the outer surface of the fixed cylinder (19), and multiple groups of exhaust ports (8) are provided on the top of the outer surface of the device body (1).

2. The fully automatic insulating carbon black granulation drying equipment according to claim 1, characterized in that: A support ring (21) is fixedly installed at the bottom of the outer surface of the ventilation shaft (11), and a sleeve (23) located at the top of the support ring (21) is movably sleeved on the outer surface of the ventilation shaft (11), and a pair of grooves (27) are provided on the left and right sides of the sleeve (23), and the pair of grooves (27) and the second opening (13) are staggered with each other. The top of the sleeve (23) is fixedly connected to a connecting block (24), and the outer surface of the ventilation shaft (11) is fixedly connected to a connecting block (26), and a spring (25) is elastically connected between the connecting block (26) and the connecting block (24).

3. The fully automatic insulating carbon black granulation drying equipment according to claim 2, characterized in that: A gear 1 (14) is fixedly mounted on the top of the inner wall of the device body (1), and a gear 2 (22) is fixedly mounted on the top of the rotating shaft (18), and the gear 2 (22) is meshed with the outer surface of the gear 1 (14).

4. The fully automatic insulating carbon black granulation drying equipment according to claim 3, characterized in that: The top of the inner cavity of the device body (1) is fixedly connected to a limiting ring 2 (10) located outside the gear 2 (22), and the top of the inner wall of the device body (1) is fixedly connected to a limiting ring 1 (9) located outside the limiting ring 2 (10), and the axial cross-section shape of the limiting ring 1 (9) is "L"-shaped.

5. The fully automatic insulating carbon black granulation drying equipment according to claim 4, characterized in that: A windshield (3) is fixedly connected to the top of the outer surface of the device body (1); the axial cross-section of the windshield (3) is L-shaped, and the windshield (3) covers the outer side of the air outlet (8).

6. The fully automatic insulating carbon black granulation drying equipment according to claim 5, characterized in that: The bottom of the limiting ring 1 (9) and the bottom of the limiting ring 2 (10) are flush and higher than the spiral piece (16), and a gap is left between the inner ring surface of the limiting ring 1 (9) and the outer ring surface of the limiting ring 2 (10).

7. The fully automatic drying equipment for insulating carbon black granulation according to claim 6, characterized in that: The ventilation shaft (11) passes through the interior of the support tube (5), and the ventilation shaft (11) is sealed and sleeved on the inner wall of the support tube (5).

8. The fully automatic drying equipment for insulating carbon black granulation according to claim 7, characterized in that: The spiral piece (16) rotates and abuts against the inner wall of the device body (1). The number of the connecting plates (15) is two groups, and they are fixedly connected to the upper and lower ends of the spiral piece (16) respectively. The bottom of the connecting plate (15) located on the lower side abuts against the bottom of the inner wall of the device body (1).

9. The fully automatic drying equipment for insulating carbon black granulation according to claim 8, characterized in that: The width of the pair of grooves (27) is greater than the diameter of the second through-port (13), and an angle of 45° is formed between the pair of grooves (27) and the second through-port (13).

10. The fully automatic drying equipment for insulating carbon black granulation according to claim 9, characterized in that: When the spring (25) is compressed to the limit, the pair of grooves (27) and the second opening (13) just coincide with each other.

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