A drying device for silicon dioxide production

Abstract

The present invention discloses a drying device for silicon dioxide production, which belongs to the field of silicon dioxide processing, and comprises a drying cylinder, a drying assembly is arranged at the lower side of the drying cylinder, the drying assembly comprises an air supply part and a feeding part, the air supply part comprises a support seat fixedly connected to the outer surface of the lower end of the drying cylinder, a connecting pipe is fixedly connected between the support seat and the drying cylinder, an air inlet pipe is fixedly connected to the outer surface of the connecting pipe, an air hole is provided on the outer surface of the lower end of the drying cylinder, and the feeding part comprises a support pipe fixedly connected to the lower end of the inner surface of the drying cylinder. The silicon dioxide gel can be continuously cut by a cutter making a circular motion, so that the silicon dioxide gel is cut into sheets, thereby reducing the volume of the silicon dioxide gel, and can increase the contact area between the silicon dioxide gel and the high-temperature gas, so that the warm gas is fully in contact with the silicon dioxide, thereby effectively improving the silicon dioxide drying speed.

Description

Technical Field

[0001] The invention relates to the field of silicon dioxide processing, and more specifically to a drying device for silicon dioxide production. Background Art

[0002] Silicon dioxide is an inorganic compound widely found in nature and is widely used in electronics, chemical industry, construction and other industries. There are many methods for preparing silicon dioxide, including gas phase method, precipitation method and sol-gel method. Among them, the sol-gel method has the advantages of simple process and high preparation purity, making it one of the commonly used methods for preparing silicon dioxide.

[0003] When silica is prepared by the sol-gel method, it is necessary to dry the silica by a silica drying device. For example, Chinese patent publication number CN221061764U discloses a silica spray drying device, which changes the flow direction of the spray during use and increases the residence time of silica inside the drying box, thereby improving the drying effect during use. At the same time, by setting up a cleaning mechanism, not only can the raw materials on the top of the partition and the inner wall of the drying box be swept off, but also the flow effect of the air inside the drying box can be increased, thereby achieving a better drying effect.

[0004] The existing silica drying device dries the silica by blowing hot air during operation. However, when drying the gel-like silica, the warm gas can only contact the surface of the silica gel, while the inside of the silica cannot directly contact the high-temperature gas. This will not only lead to inconsistent drying speeds inside and outside the silica, making the drying uniformity of the silica inconsistent, but will also affect the drying speed of the silica to a certain extent, thereby reducing the efficiency of the silica drying process. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a drying device for silica production, which can be realized by setting a cutting component and continuously cutting the silica gel by the cutter making a circular motion, thereby cutting the silica gel into sheets, thereby reducing the volume of the silica gel, and increasing the contact area between the silica gel and the high-temperature gas, so that the warm gas is in full contact with the silica, thereby effectively improving the silica drying speed.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A drying device for silicon dioxide production, comprising a drying cylinder, a drying assembly is arranged at the lower side of the drying cylinder, the drying assembly comprises an air supply part and a material conveying part, the air supply part comprises a support seat fixedly connected to the outer surface of the lower end of the drying cylinder, a connecting pipe is fixedly connected between the support seat and the drying cylinder, an air inlet pipe is fixedly connected to the outer surface of the connecting pipe, and an air hole is opened on the outer surface of the lower end of the drying cylinder;

[0008] The feeding part includes a support tube fixedly connected to the lower end of the inner surface of the drying cylinder, a spiral blade is fixedly connected between the outer surface of the support tube and the inner wall of the drying cylinder, a connecting plate is fixedly connected to the inner surface of the drying cylinder, a dividing plate is fixedly connected to the outer surface of the connecting plate, an overflow groove is provided on the outer surface of the upper end of the connecting plate, and the drying component is used to transport and dry the silicon dioxide particles.

[0009] Furthermore, the drying cylinder is in the shape of a hollow circular arc, the air inlet pipe is connected to the hot blast furnace air supply pipe through a pipeline, the number of the air holes is several groups and distributed in a ring array, the dividing plates are distributed in a circular ring shape, the number of the overflow troughs is several groups and distributed in a ring array, and the upper end of the support tube is closed.

[0010] Furthermore, a slitting assembly is provided on the upper side of the drying cylinder, and the slitting assembly includes a feed pipe fixedly connected to the outer surface of the drying cylinder, the feed pipe penetrates into the inner side of the drying cylinder, the upper side of the feed pipe is open, a motor is fixedly connected to the outer surface of the upper end of the drying cylinder, and a connecting shaft is fixedly connected to the lower end of the motor output shaft.

[0011] Furthermore, a lower end of the connecting shaft passes through the inner side of the drying cylinder and is rotatably connected to the drying cylinder, a connecting rod is fixedly connected to an outer surface of the connecting shaft, an end of the connecting rod away from the connecting shaft is fixedly connected to a movable sleeve, a cutter is fixedly connected to an outer surface of an upper end of the movable sleeve, a notch is provided on the outer surface of the feed pipe, the cutter is arc-shaped, and the number of the cutters is several groups and distributed in a ring array.

[0012] Furthermore, a crushing assembly is provided on the inner side of the drying cylinder, and the crushing assembly includes a support plate fixedly connected to the inner surface of the drying cylinder, the support plate is in a circular ring shape, a fixed tube is fixedly connected to the side wall of the support plate, a screen is slidably connected to the outer surface of the upper end of the fixed tube, a sliding plate is fixedly connected to the outer surface of the upper end of the support plate, the sliding plates are in two groups and are symmetrically distributed, and the sliding plates are slidably connected to the side walls of the screen.

[0013] Furthermore, a crushing plate is fixedly connected to the upper end of the inner surface of the drying cylinder, and the number of the crushing plates is two groups and they are symmetrically distributed, and the lower side of the crushing plate is serrated, and the screen is located between the movable sleeve and the fixed tube, and a material baffle plate is fixedly connected to the inner surface of the movable sleeve, and the material baffle plate is made of elastic material, and the lower end of the material baffle plate is in sliding contact with the outer surface of the upper end of the screen, and a movable groove is opened in the middle of the outer surface of the screen, and the movable groove is an elliptical structure, and a top block is fixedly connected to the outer surface of the connecting shaft, and the top block is in sliding contact with the inner surface of the movable groove, and a rubber ring is fixedly connected to the upper side of the movable groove, and the rubber ring is in rotational contact with the outer surface of the connecting shaft.

[0014] Furthermore, a material distribution component is provided at the lower side of the material distribution plate, and the material distribution component includes a mounting plate rotatably connected to a connecting shaft, a mounting block is fixedly connected to the outer surface of the mounting plate, the mounting blocks are symmetrically distributed, the mounting blocks are fixedly connected to the material distribution plate, a fixing seat is fixedly connected to a lower end of the connecting shaft, and a movable rod is fixedly connected to the outer surface of the fixing seat.

[0015] Furthermore, the movable rods are divided into several groups and distributed in a ring array, the outer surface of the movable rods is rotatably connected to a sleeve, the outer surface of the sleeve is fixedly connected to a flap, the flaps are divided into several groups and distributed in a ring array, the inner surface of the drying cylinder is fixedly connected to a baffle rod, and the baffle rod is in rotational contact with the outer surface of the flap.

[0016] Furthermore, a discharge assembly is provided at the lower side of the material equalizing assembly, and the discharge assembly includes a second coupling shaft fixedly connected to the outer surface of the lower end of the fixed seat, the lower end of the second coupling shaft penetrates into the inner side of the support tube and is rotatably connected to the support tube, the lower end of the second coupling shaft is fixedly connected to a traction rope, the lower end of the traction rope is fixedly connected to a sphere, and the inner surface of the support tube is fixedly connected to a fixed block, and the number of the fixed blocks is several groups and distributed in a ring array.

[0017] Furthermore, an exhaust pipe is fixedly connected to the outer surface of the drying cylinder, the exhaust pipe is located on the upper side of the air inlet pipe, a limiting plate is fixedly connected between the drying cylinder and the connecting pipe, a discharge port is opened on the outer surface of the lower end of the drying cylinder, and a discharge plate is fixedly connected to the outer surface of the limiting plate.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) In this scheme, by setting a drying component, the high-temperature gas will fully contact with the silicon dioxide on the upper surface of the spiral blade during the upward flow, and the silicon dioxide fragments are dried by the high-temperature gas. The spiral blades transport the silicon dioxide and the high-temperature gas respectively, which can effectively prolong the contact time between the high-temperature gas and the silicon dioxide, thereby effectively improving the drying efficiency of the silicon dioxide;

[0020] (2) This solution provides a cutting assembly, and the cutter continuously cuts the silica gel in a circular motion, thereby cutting the silica gel into sheets, thereby reducing the volume of the silica gel, increasing the contact area between the silica gel and the high-temperature gas, and allowing the warm gas to fully contact the silica, thereby effectively increasing the drying speed of the silica;

[0021] (3) In this scheme, by setting up a crushing assembly, the silica fragments on the surface of the screen will come into contact with the lower surface of the crushing plate during movement. The serrated bottom side of the crushing plate can crush the flaky silica, thereby further reducing the volume of the silica fragments, thereby effectively increasing the silica drying speed and, at the same time, improving the silica crushing uniformity to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a top view of the overall structure of the present invention;

[0024] Figure 3 For the present invention Figure 3 Middle AA section view;

[0025] Figure 4 For the present invention Figure 1 Middle BB section view;

[0026] Figure 5 For the present invention Figure 1 Middle CC section view;

[0027] Figure 6 For the present invention Figure 2 Middle DD section view;

[0028] Figure 7 For the present invention Figure 3 The enlarged schematic diagram at E in the middle;

[0029] Figure 8 For the present invention Figure 3 The enlarged schematic diagram at F in the middle;

[0030] Fig. 9 For the present invention Figure 6 Enlarged schematic diagram at point G in the middle.

[0031] Description of the numbers in the figure:

[0032] Cutting assembly; 11. Drying cylinder; 12. Feeding pipe; 13. Motor; 14. Coupling shaft 1; 15. Notch; 16. Cutter; 17. Connecting rod; 18. Movable sleeve;

[0033] Crushing assembly; 21, supporting plate; 22, sliding plate; 23, screen; 24, fixed pipe; 25, movable groove; 26, top block; 27, baffle plate; 28, crushing plate; 29, rubber ring;

[0034] Drying assembly; 31, connecting plate; 32, overflow trough; 34, material dividing plate; 35, support seat; 36, connecting pipe; 37, support pipe; 38, spiral blade; 39, air hole;

[0035] Material distribution assembly; 41, fixed seat; 42, stop rod; 43, mounting block; 44, mounting plate; 45, movable rod; 46, sleeve; 47, flap;

[0036] Discharging assembly; 51, connecting shaft 2; 52, traction rope; 53, sphere; 54, fixing block; 55, exhaust pipe; 56, air inlet pipe; 57, discharging plate; 58, discharging port; 59, limiting plate. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0038] See also Figures 1 to 9 A drying device for silicon dioxide production, comprising a drying cylinder 11, a drying assembly is arranged at the lower side of the drying cylinder 11, the drying assembly comprises an air supply part and a material conveying part, the air supply part comprises a support seat 35 fixedly connected to the outer surface of the lower end of the drying cylinder 11, a connecting pipe 36 is fixedly connected between the support seat 35 and the drying cylinder 11, an air inlet pipe 56 is fixedly connected to the outer surface of the connecting pipe 36, and an air hole 39 is opened on the outer surface of the lower end of the drying cylinder 11;

[0039] The feeding part includes a support tube 37 fixedly connected to the lower end of the inner surface of the drying cylinder 11, a spiral blade 38 is fixedly connected between the outer surface of the support tube 37 and the inner wall of the drying cylinder 11, a connecting plate 31 is fixedly connected to the inner surface of the drying cylinder 11, a dividing plate 34 is fixedly connected to the outer surface of the connecting plate 31, and an overflow groove 32 is provided on the outer surface of the upper end of the connecting plate 31. The drying component is used to transport and dry the silicon dioxide particles.

[0040] The drying cylinder 11 is in the shape of a hollow circular arc, the air inlet pipe 56 is connected to the hot air furnace air supply pipe through a pipeline, the number of the air holes 39 is several groups and distributed in a ring array, the dividing plates 34 are distributed in a circular ring shape, the number of the overflow grooves 32 is several groups and distributed in a ring array, and the upper end of the support tube 37 is closed.

[0041] By adopting the above technical solution, during the preparation of silica, it is necessary to dry the silica gel processed by the polymerization reaction to obtain pure silica crystal particles. The support seat 35 supports the drying cylinder 11. When the silica drying device is working, the silica gel will fall on the upper surface of the spiral blade 38 under the action of gravity after being crushed and preliminarily dried. The silica fragments will move downward along the spiral blade 38, and then the high-temperature gas generated by the hot air furnace will be injected between the support seat 35 and the connecting pipe 36 through the air inlet pipe 56, and then the high-temperature gas will enter the interior of the drying cylinder 11 through the air hole 39. The upper surface of the air hole 39 is provided with a filter cloth. While ensuring the normal circulation of gas, it can also prevent silica from falling from the inside of the air hole 39 to the inside of the support seat 35, thereby reducing the probability of the air hole 39 being blocked by silica, and further improving the operating stability of the drying component. After the high-temperature gas enters between the spiral blades 38, it will flow upward along the spiral blades 38. In the process of flowing upward, the high-temperature gas will fully contact with the silica on the upper surface of the spiral blades 38, and the silica fragments are dried by the high-temperature gas. The spiral blades 38 transport silica and high-temperature gas respectively, which can effectively prolong the contact time between the high-temperature gas and silica, thereby effectively improving the drying efficiency of silica.

[0042] like Figure 1 , Figure 3 , Figure 5 and Figure 8 As shown, a slitting assembly is provided on the upper side of the drying cylinder 11, and the slitting assembly includes a feed pipe 12 fixedly connected to the outer surface of the drying cylinder 11, the feed pipe 12 penetrates to the inner side of the drying cylinder 11, and the upper side of the feed pipe 12 is open. A motor 13 is fixedly connected to the outer surface of the upper end of the drying cylinder 11, and a connecting shaft 14 is fixedly connected to the lower end of the output shaft of the motor 13.

[0043] The lower end of the connecting shaft 14 passes through the inner side of the drying cylinder 11 and is rotatably connected to the drying cylinder 11. A connecting rod 17 is fixedly connected to the outer surface of the connecting shaft 14. A movable sleeve 18 is fixedly connected to the end of the connecting rod 17 away from the connecting shaft 14. A cutter 16 is fixedly connected to the outer surface of the upper end of the movable sleeve 18. A notch 15 is provided on the outer surface of the feed pipe 12. The cutter 16 is arc-shaped. The number of the cutters 16 is several groups and distributed in a ring array.

[0044] By adopting the above technical solution, when drying the gel-like silica, the silica gel is first placed inside the feed pipe 12, and the silica gel will slide downward along the feed pipe 12 under the action of gravity. At this time, the motor 13 is started and operated, and the motor 13 drives the connecting shaft 14 to rotate synchronously, and the connecting shaft 14 drives the movable sleeve 18 to rotate synchronously through the connecting rod 17, so that the cutter 16 is driven by the movable sleeve 18 to make a circular motion. When the cutter 16 rotates to the notch 15 on the surface of the feed pipe 12, the cutter 16 will pass through the notch 15, and the silica gel will be cut by the cutter 16, so that the volume of the silica gel can be effectively reduced. Several groups of annularly distributed cutters 16 can continuously cut the silica gel as the motor 13 rotates, so that the silica gel is cut into sheets. By setting a cutting component to reduce the volume of the silica gel, the contact area between the silica gel and the high-temperature gas can be increased, so that the silica drying speed can be effectively improved.

[0045] like Figure 1 , Figure 5 , Figure 6 and Figure 8 As shown, a crushing assembly is provided inside the drying cylinder 11, and the crushing assembly includes a support plate 21 fixedly connected to the inner surface of the drying cylinder 11, the support plate 21 is in a circular ring shape, a fixed tube 24 is fixedly connected to the side wall of the support plate 21, a screen 23 is slidably connected to the outer surface of the upper end of the fixed tube 24, a sliding plate 22 is fixedly connected to the outer surface of the upper end of the support plate 21, the sliding plates 22 are in two groups and are symmetrically distributed, and the sliding plates 22 are slidably connected to the side walls of the screen 23.

[0046] A crushing plate 28 is fixedly connected to the upper end of the inner surface of the drying cylinder 11, and the number of the crushing plates 28 is two groups and they are symmetrically distributed. The lower side of the crushing plate 28 is serrated. The screen 23 is located between the movable sleeve 18 and the fixed tube 24. A baffle plate 27 is fixedly connected to the inner surface of the movable sleeve 18, and the baffle plate 27 is made of elastic material. The lower end of the baffle plate 27 is in sliding contact with the outer surface of the upper end of the screen 23. A movable groove 25 is provided in the middle of the outer surface of the screen 23, and the movable groove 25 is an elliptical structure. A top block 26 is fixedly connected to the outer surface of the connecting shaft 14, and the top block 26 is in sliding contact with the inner surface of the movable groove 25. A rubber ring 29 is fixedly connected to the upper side of the movable groove 25, and the rubber ring 29 is in rotational contact with the outer surface of the connecting shaft 14.

[0047] By adopting the above technical solution, the drying cylinder 11 supports the fixed tube 24 through the supporting plate 21, and the upper surface of the fixed tube 24 is slidably connected with the screen 23. The supporting plate 21 slidably supports the screen 23 through the sliding plate 22, so that the screen 23 can only slide in a single direction. The silica gel after cutting will fall on the surface of the screen 23 under the action of gravity. Some smaller silica particles will continue to fall through the mesh holes on the surface of the screen 23, while large silica fragments will remain on the upper surface of the screen 23. The connecting shaft 14 will drive the top block 26 to rotate synchronously during the rotation process. The top block 26 will rotate and contact with the inner wall of the movable groove 25 on the outer surface of the screen 23 during the rotation process. The movable groove 25 has an elliptical structure, so that the screen 23 is driven to slide back and forth in the horizontal direction through the top block 26. The rubber ring 29 is made of elastic material and can be sealed between the screen 23 and the connecting shaft 14, thereby reducing the probability of silica falling from the surface of the movable groove 25. The screen 23 is in motion. The movement will drive the silica on the upper side of the screen 23 to shake synchronously. The material baffle plate 27 on the inner surface of the movable sleeve 18 can block the material during the movement of the screen 23, thereby reducing the probability of accidental leakage of silica on the surface of the screen 23. The silica fragments will contact the lower surface of the crushing plate 28 during the movement. The lower side of the crushing plate 28 is serrated and can crush the flaky silica, thereby further reducing the volume of the silica fragments, thereby effectively increasing the silica drying speed and, at the same time, improving the silica crushing uniformity to a certain extent. The drying cylinder 11 fixes and supports the dividing plate 34 through the connecting plate 31. The silica sieved by the screen 23 will fall on the outer surface of the dividing plate 34, and then fall downward from the overflow groove 32 on the outer surface of the connecting plate 31. The silica collides and breaks with the outer surface of the dividing plate 34 under the action of gravity, thereby further reducing the particle size of the silica and effectively improving the silica crushing effect.

[0048] like Figure 3 , Figure 6 and Figure 7 As shown, a material distribution assembly is provided at the lower side of the material distribution plate 34, and the material distribution assembly includes a mounting plate 44 rotatably connected to the connecting shaft 14, and a mounting block 43 is fixedly connected to the outer surface of the mounting plate 44, and the mounting blocks 43 are symmetrically distributed. The mounting blocks 43 are fixedly connected to the material distribution plate 34, and a fixing seat 41 is fixedly connected to the lower end of the connecting shaft 14, and a movable rod 45 is fixedly connected to the outer surface of the fixing seat 41.

[0049] The movable rods 45 are arranged in several groups and in a ring array. The outer surface of the movable rods 45 is rotatably connected to a sleeve 46. The outer surface of the sleeve 46 is fixedly connected to a flap 47. The flap 47 is arranged in several groups and in a ring array. The inner surface of the drying cylinder 11 is fixedly connected to a blocking rod 42. The blocking rod 42 is in rotational contact with the outer surface of the flap 47.

[0050] By adopting the above technical scheme, the material distribution plate 34 fixes and supports the mounting plate 44 through the mounting block 43, and the mounting plate 44 and the connecting shaft 14 are rotatably supported, thereby reducing the probability of large-particle silica fragments falling accidentally. The connecting shaft 14 will drive the fixed seat 41 to rotate synchronously during the rotation process, thereby driving the movable rod 45 to rotate through the fixed seat 41, and the movable rod 45 will drive the sleeve 46 and the flap 47 on its surface to make a circular motion during the rotation process. The flap 47 will contact the baffle rod 42 during the movement. As the movable rod 45 continues to rotate, the flap 47 will drive the sleeve 46 to rotate around the outer surface of the movable rod 45 under the blocking action of the baffle rod 42. The flap 47 will contact the falling silica fragments during the rotation process, and the silica fragments are further knocked and crushed by the flap 47. At the same time, under the slapping action of the flap 47, the falling time of the silica fragments can be extended, so that the silica fragments have sufficient time to contact with the high-temperature gas, thereby further improving the silica drying rate.

[0051] like Figure 4 , Figure 6 and Fig. 9 As shown, a discharge assembly is provided at the lower side of the material equalizing assembly, and the discharge assembly includes a second connecting shaft 51 fixedly connected to the outer surface of the lower end of the fixed seat 41, the lower end of the second connecting shaft 51 passes through the inner side of the support tube 37 and is rotatably connected to the support tube 37, the lower end of the second connecting shaft 51 is fixedly connected to a traction rope 52, the lower end of the traction rope 52 is fixedly connected to a ball 53, the inner surface of the support tube 37 is fixedly connected to a fixed block 54, and the number of the fixed blocks 54 is several groups and distributed in a ring array.

[0052] An exhaust pipe 55 is fixedly connected to the outer surface of the drying cylinder 11, and the exhaust pipe 55 is located on the upper side of the air inlet pipe 56. A limiting plate 59 is fixedly connected between the drying cylinder 11 and the connecting pipe 36. A discharge port 58 is opened on the outer surface of the lower end of the drying cylinder 11, and a discharge plate 57 is fixedly connected to the outer surface of the limiting plate 59.

[0053] By adopting the above technical solution, the first connecting shaft 14 drives the second connecting shaft 51 to rotate synchronously through the fixed seat 41, thereby driving the traction rope 52 to rotate synchronously through the second connecting shaft 51. The ball 53 will move toward the side of the support tube 37 during the rotation process under the action of centrifugal force. The ball 53 will contact and collide with the fixed block 54 on the inner wall of the support tube 37 during the rotation process. The ball 53 can knock the fixed block 54 to make the spiral blade 38 vibrate to a certain extent, so that the silicon dioxide particles can slide along the upper surface of the spiral blade 38. The vibration of the spiral blade 38 makes the movement of the silicon dioxide particles more stable. It can also effectively reduce the probability of silica agglomerating on the outer surface of the spiral blade 38. After drying, the silica gel will form a silica crystal shell, and then the silica crystal shell will be discharged to the outside of the drying cylinder 11 through the discharge port 58. The limit plate 59 and the discharge plate 57 can assist in the discharge of silica particles. At the same time, during the operation, the negative pressure fan is connected to the exhaust pipe 55 to suck the moisture and air inside the drying cylinder 11, so that the high-temperature gas flows from bottom to top inside the drying cylinder 11, so that the silica inside the drying cylinder 11 can be fully in contact with the high-temperature gas.

[0054] Usage: First, place the silica gel inside the feed tube 12. When the cutter 16 rotates to the notch 15 on the surface of the feed tube 12, the cutter 16 will cut the silica gel, thereby effectively reducing the volume of the silica gel. The cut silica gel will fall on the surface of the screen 23 under the action of gravity, and the top block 26 will drive the screen 23 to slide back and forth in the horizontal direction. During the movement of the screen 23, the silica on the upper side of the screen 23 will shake synchronously. The silica fragments will contact the lower surface of the crushing plate 28 during the movement. The lower side of the crushing plate 28 is serrated and can crush the flaky silica. The movable rod 45 is driven to rotate by the fixed seat 41. The movable rod 45 drives the sleeve 46 and the flap 47 on its surface to make circular motion during the rotation. The flap 47 comes into contact with the falling silica fragments during the rotation. The silica fragments are further knocked and crushed by the flap 47. After the silica gel is crushed and preliminarily dried, it falls on the upper surface of the spiral blades 38 under the action of gravity. After the high-temperature gas enters between the spiral blades 38, it flows upward along the spiral blades 38. During the upward flow, the high-temperature gas fully contacts with the silica on the upper surface of the spiral blades 38, and the silica fragments are dried by the high-temperature gas.

[0055] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A drying device for producing silicon dioxide, comprising a drying cylinder (11), characterized in that: A drying assembly is disposed at the lower side of the drying cylinder (11), the drying assembly comprising an air supply portion and a material conveying portion, the air supply portion comprising a support seat (35) fixedly connected to the outer surface of the lower end of the drying cylinder (11), a connecting pipe (36) fixedly connected between the support seat (35) and the drying cylinder (11), an air inlet pipe (56) fixedly connected to the outer surface of the connecting pipe (36), and an air hole (39) is provided on the outer surface of the lower end of the drying cylinder (11); The material conveying section comprises a support tube (37) fixedly connected to the lower end of the inner surface of the drying cylinder (11); a spiral blade (38) is fixedly connected between the outer surface of the support tube (37) and the inner wall of the drying cylinder (11); a connecting plate (31) is fixedly connected to the inner surface of the drying cylinder (11); a material distribution plate (34) is fixedly connected to the outer surface of the connecting plate (31); an overflow groove (32) is provided on the outer surface of the upper end of the connecting plate (31); and the drying component is used for conveying and drying silicon dioxide particles; The drying cylinder (11) is in the shape of a hollow circular arc, the air inlet pipe (56) is connected to the hot air furnace air delivery pipe through a pipeline, the air holes (39) are in a plurality of groups and are distributed in a ring array, the material distribution plates (34) are in a circular ring shape, the overflow grooves (32) are in a plurality of groups and are distributed in a ring array, and the upper end of the support pipe (37) is in a closed shape; A slitting assembly is arranged on the upper side of the drying cylinder (11), the slitting assembly comprises a feed pipe (12) fixedly connected to the outer surface of the drying cylinder (11), the feed pipe (12) penetrates the inner side of the drying cylinder (11), the upper side of the feed pipe (12) is open, the outer surface of the upper end of the drying cylinder (11) is fixedly connected to a motor (13), and the lower end of the output shaft of the motor (13) is fixedly connected to a connecting shaft (14); The lower end of the connecting shaft (14) passes through the inner side of the drying cylinder (11) and is rotatably connected to the drying cylinder (11); a connecting rod (17) is fixedly connected to the outer surface of the connecting shaft (14); an end of the connecting rod (17) away from the connecting shaft (14) is fixedly connected to a movable sleeve (18); a cutter (16) is fixedly connected to the outer surface of the upper end of the movable sleeve (18); a notch (15) is provided on the outer surface of the feed pipe (12); the cutter (16) is in an arc shape; the number of the cutters (16) is a plurality of groups and is distributed in a ring array; A crushing assembly is provided inside the drying cylinder (11), the crushing assembly comprising a support plate (21) fixedly connected to the inner surface of the drying cylinder (11), the support plate (21) being in an annular shape, a fixed tube (24) fixedly connected to the side wall of the support plate (21), a screen (23) slidably connected to the upper outer surface of the fixed tube (24), a sliding plate (22) fixedly connected to the upper outer surface of the support plate (21), the sliding plates (22) being provided in two groups and symmetrically distributed, and the sliding plates (22) being slidably connected to the side walls of the screen (23); A crushing plate (28) is fixedly connected to the upper end of the inner surface of the drying cylinder (11). The crushing plates (28) are provided in two groups and are symmetrically distributed. The lower side of the crushing plates (28) is serrated. The screen (23) is located between the movable sleeve (18) and the fixed tube (24). A material blocking plate (27) is fixedly connected to the inner surface of the movable sleeve (18). The material blocking plate (27) is made of elastic material. The lower end of the material blocking plate (27) is in sliding contact with the outer surface of the upper end of the screen (23). A movable groove (25) is provided in the middle of the outer surface of the screen (23). The movable groove (25) is in an elliptical structure. A top block (26) is fixedly connected to the outer surface of the connecting shaft (14). The top block (26) is in sliding contact with the inner surface of the movable groove (25). A rubber ring (29) is fixedly connected to the upper side of the movable groove (25). The rubber ring (29) is in rotational contact with the outer surface of the connecting shaft (14).

2. A drying device for silicon dioxide production according to claim 1, characterized in that: A material distribution component is arranged at the lower side of the material distribution plate (34), and the material distribution component comprises a mounting plate (44) rotatably connected to the connecting shaft (14); mounting blocks (43) are fixedly connected to the outer surface of the mounting plate (44); the mounting blocks (43) are symmetrically distributed; the mounting blocks (43) are fixedly connected to the material distribution plate (34); a fixing seat (41) is fixedly connected to the lower end of the connecting shaft (14); and a movable rod (45) is fixedly connected to the outer surface of the fixing seat (41).

3. A drying device for silicon dioxide production according to claim 2, characterized in that: The movable rods (45) are provided in a plurality of groups and are arranged in a ring-shaped array; the outer surface of the movable rods (45) is rotatably connected to a sleeve (46); the outer surface of the sleeve (46) is fixedly connected to a flap (47); the flap (47) is provided in a plurality of groups and is arranged in a ring-shaped array; the inner surface of the drying cylinder (11) is fixedly connected to a blocking rod (42); the blocking rod (42) is in rotatable contact with the outer surface of the flap (47).

4. A drying device for silicon dioxide production according to claim 3, characterized in that: A material discharging assembly is arranged at the lower side of the material balancing assembly, and the material discharging assembly comprises a second connecting shaft (51) fixedly connected to the outer surface of the lower end of the fixing seat (41), the lower end of the second connecting shaft (51) passes through the inner side of the supporting tube (37) and is rotatably connected to the supporting tube (37), the lower end of the second connecting shaft (51) is fixedly connected to a traction rope (52), the lower end of the traction rope (52) is fixedly connected to a ball (53), and the inner surface of the supporting tube (37) is fixedly connected to a fixing block (54), and the number of the fixing blocks (54) is a plurality of groups and is distributed in a ring array.

5. A drying device for silicon dioxide production according to claim 4, characterized in that: An exhaust pipe (55) is fixedly connected to the outer surface of the drying cylinder (11), and the exhaust pipe (55) is located on the upper side of the air inlet pipe (56). A limiting plate (59) is fixedly connected between the drying cylinder (11) and the connecting pipe (36). A discharge port (58) is provided on the outer surface of the lower end of the drying cylinder (11), and a discharge plate (57) is fixedly connected to the outer surface of the limiting plate (59).

Images