CN117401889A - Large vertical high-temperature rotary furnace - Google Patents

Abstract

The application provides a large-scale vertical high temperature rotary furnace, include: the hot melting furnace comprises a furnace cover, a furnace body and a furnace bottom disc, wherein the furnace cover is connected to one end of the furnace body, and the furnace bottom disc is configured to be far away from and close to the furnace body; the heating element is positioned in the furnace body; the tray is rotatably arranged on the furnace chassis, and a rotating mechanism for driving the tray to rotate is arranged on the furnace chassis; the quick cooling mechanism comprises a heat exchange pipeline, a water-cooling heat exchanger and a driving piece, wherein both ends of the heat exchange pipeline are communicated with the furnace body, the water-cooling heat exchanger is communicated with the pipe section of the heat exchange pipeline, and the driving piece is used for driving air flow to circulate between the hot melting furnace and the heat exchange pipeline. The method improves the problems of uneven heating and uneven cooling of the quartz raw material in the hot melting furnace.

Description

Large vertical high-temperature rotary furnace

Technical Field

The application relates to the technical field of quartz glass production, in particular to a large vertical high-temperature rotary furnace.

Background

The quartz glass is prepared by taking natural crystalline quartz or silicon compounds as raw materials and melting the raw materials at high temperature in a clean environment, has a series of excellent physical and chemical properties, such as good light transmittance, high temperature resistance, low expansion coefficient, electric vacuum property, corrosion resistance and the like, and is known as 'glass king' in the industry. Quartz glass is an important basic material indispensable for the development of modern information industry, strategic emerging industries such as optics, photovoltaics, semiconductors and the like and national defense fields such as aerospace and the like.

In the technical flow of the existing synthetic quartz glass casting process, large-size high-performance synthetic quartz plate glass is generally formed by melting, deforming and solidifying a large amount of high-purity synthetic quartz raw materials with smaller sizes in a high-temperature inert gas environment. If the synthetic quartz raw material is heated unevenly and cooled unevenly in the melting, deforming and solidifying processes, veins remain in the quartz glass, and the product is scrapped.

Disclosure of Invention

In order to solve the problems of uneven heating of quartz raw materials in the melting process and uneven cooling in the vitrification process, the application provides a large vertical high-temperature rotary furnace.

The application provides a large-scale vertical high temperature rotary furnace, adopts following technical scheme:

a large vertical high temperature rotary furnace comprising:

a hot melt furnace comprising a furnace lid, a furnace body, and a hearth disk, the furnace lid being connected to one end of the furnace body, the hearth disk being configured to be movable away from and toward the furnace body;

the heating piece is positioned in the furnace body;

the tray is rotationally arranged on the furnace chassis, and a rotating mechanism for driving the tray to rotate is arranged on the furnace chassis;

the quick cooling mechanism comprises a heat exchange pipeline, a water-cooling heat exchanger and a driving piece, wherein both ends of the heat exchange pipeline are communicated with the furnace body, the water-cooling heat exchanger is communicated with the pipe section of the heat exchange pipeline, and the driving piece is used for driving air flow to circulate between the hot melting furnace and the heat exchange pipeline.

By adopting the technical scheme, the hearth disk is arranged on one side of the furnace body in a sliding way, and when the hearth disk is far away from the furnace body, the hot melting furnace can be opened, so that operators can conveniently place raw materials on the tray; when the hearth disk is close to the furnace body until the hearth disk abuts against the furnace body, the hot melting furnace can be closed, and the heating piece is started, so that the quartz raw material is subjected to hot melting in the hot melting furnace; the tray rotates and sets up on the stove chassis for raw materials on the tray can with the even contact of heating piece, in order to improve the homogeneity of being heated of raw materials, thereby reduce large-scale synthetic quartz glass's manufacturing cost. After the quartz raw materials on the tray are melted, the driving piece is started, so that hot air flow in the hot melting furnace enters the heat exchange pipeline through the hot air flow, and becomes cold air flow after being cooled by the water-cooling heat exchanger, and then enters the hot melting furnace along the continuous heat exchange pipeline, so that quick cooling circulation is formed in the hot melting furnace, and meanwhile, the tray continuously rotates, so that the cold air flow is uniformly contacted with the melted quartz raw materials, and the effect of uniform cooling is realized. The rapid cooling mechanism cools and vitrifies the melted quartz raw material to obtain synthetic quartz glass.

Optionally, the device further comprises a stabilizing stay bar, wherein the stabilizing stay bar comprises a support bar and a riding wheel rotatably arranged at one end of the support bar; the supporting rod is fixedly connected to the furnace chassis, and the riding wheel is propped against the bottom of the tray; and/or

The furnace body is provided with a furnace chassis, and the furnace chassis is provided with a lifting mechanism.

By adopting the technical scheme, when the tray rotates, the riding wheel is propped against the bottom of the tray, and a part of axial load is shared for the tray, so that the stability of the tray during rotation is improved; the riding wheel is rotatably arranged on the supporting rod, so that friction between the riding wheel and the tray is rolling friction, and the obstruction of the riding wheel to the rotation of the tray is reduced;

when the lifting mechanism drives the furnace chassis to move away from the furnace body, the hot melting furnace can be started; when the lifting mechanism drives the furnace chassis to move close to the furnace body, the hot melting furnace can be closed.

Optionally, the rotary mechanism includes rotating the bull stick and the drive assembly of connecting in on the stove chassis, bull stick one end with the tray is connected, the bull stick other end wears out the stove chassis, drive assembly is used for driving the bull stick is rotatory.

Through adopting above-mentioned technical scheme, drive assembly drive bull stick is rotatory to make the tray of connecting on the bull stick take place to rotate, in order to indirectly realize driving the tray rotation.

Optionally, the driving assembly comprises a first belt wheel, a second belt wheel, a driving endless belt and a driving source, wherein the first belt wheel is fixed at one end of the rotating rod penetrating through the furnace chassis;

the driving source comprises an output shaft, the second belt wheel is fixedly arranged on the output shaft, and the driving endless belt is sleeved outside the first belt wheel and the second belt wheel.

By adopting the technical scheme, when the tray needs to be driven to rotate, the driving source is started to drive the second belt wheel to rotate, and the endless belt is driven to move under the action of the second belt wheel so as to drive the first belt wheel to rotate; the first belt pulley is fixedly connected with the rotating rod, so that the rotating rod rotates along with the first belt pulley, and then the tray connected to one end of the rotating rod is driven to rotate.

Optionally, a heat-insulating sleeve is arranged in the furnace body, a first protection Wen Menban is fixedly connected to one side of the furnace cover, a first air port capable of being opened or closed is formed in the first heat-insulating door plate, a second heat-insulating door plate is fixedly connected to one side of the furnace bottom plate, and a second air port capable of being opened or closed is formed in the second heat-insulating door plate;

the heat preservation sleeve, the first heat preservation door plate and the second heat preservation door plate can form a hot melting cavity, and the heating piece and the tray are both positioned in the hot melting cavity;

the heat exchange interlayer can be formed between the outer side wall of the hot melting cavity and the inner side wall of the hot melting furnace, and two ends of the heat exchange pipeline are communicated with the heat exchange interlayer.

By adopting the technical scheme, when the hot melting furnace is in a closed state, the heat-insulating sleeve arranged in the furnace body, the first heat-insulating door plate Wen Menban and the second heat-insulating door plate on the furnace cover form a hot melting cavity, and when the hot melting furnace heats raw materials, the heat loss in the hot melting furnace can be reduced; when the raw materials after melting more are needed to be cooled, the first air passing opening on the first heat preservation door plate and the second air passing opening on the second heat preservation door plate are in an opening state, and the hot melting cavity is communicated with the heat exchange interlayer, so that the communication between the quick cooling mechanism and the hot melting cavity is realized, and the quick cooling mechanism can cool the inside of the hot melting cavity.

Optionally, a first adjustable air door is slidably arranged at the first air passing opening, the cross section of the first adjustable air door close to one end of the tray is smaller than the cross section of the first adjustable air door far away from one end of the tray, and a first adjusting piece for driving the first adjustable air door to slide is arranged on the first heat-preserving door plate;

the second air outlet is provided with a second adjustable air door in a sliding mode, the cross section of the second adjustable air door close to one end of the tray is smaller than the cross section of the second adjustable air door away from one end of the tray, and the second heat-preserving door plate is provided with a second adjusting piece used for driving the second adjustable air door to slide.

By adopting the technical scheme, the first adjustable air door is driven to slide at the first air passing opening through the first adjusting piece, and because the cross section of one end of the first adjustable air door, which is close to the tray, is smaller than the cross section of one end of the first adjustable air door, which is far away from the tray, if the first adjustable air door is driven to slide in the direction away from the tray, the distance between the outer side wall of the first adjustable air door and the inner side wall of the first air passing opening is increased so as to increase the gas flow quantity at the first air passing opening, if the first adjustable air door is driven to slide in the direction away from the tray, the distance between the outer side wall of the first adjustable air door and the inner side wall of the first air passing opening is reduced, so that the gas flow quantity at the first air passing opening can be reduced, and the gas flow quantity at the first air passing opening is adjusted; and in the same way, the second adjustable air door is driven to slide in the direction away from or close to the tray by the second adjusting piece, so that the gas flow quantity at the second air passing opening can be adjusted.

Optionally, the first adjusting member includes a first adjusting rod, where the first adjusting rod passes through the first protector Wen Menban and is in threaded connection with the first protector Wen Menban, and one end of the first adjusting rod passing through the first protector Wen Menban abuts against the first adjustable damper.

By adopting the technical scheme, the first adjusting rod is rotated to enable the first adjusting rod to move in the direction away from the tray, and the first adjustable air door can be pushed to move in the direction away from the tray in the moving process of the first adjusting rod; when the first adjusting rod is rotated to enable the first adjusting rod to move in a direction away from the first adjustable air door, the first adjustable air door moves in a direction close to the tray under the action of self gravity.

Optionally, the second regulating part includes the second regulation pole, the second is adjusted the pole and is passed in proper order the second adjustable air door with second heat preservation door plant, and with second heat preservation door plant threaded connection, the second is adjusted the pole and is passed the one end of second adjustable air door is provided with the supporting shoe, the supporting shoe be used for with the adjustable air door of second offsets.

By adopting the technical scheme, the supporting block on the second adjusting rod is propped against the second adjustable air door to provide support for the second adjustable air door, the second adjusting rod is rotated to enable the second adjusting rod to move in the direction away from the tray, and the second adjustable air door moves along with the second adjusting rod in the direction away from the tray; when the second adjusting rod is rotated to enable the second adjusting rod to move towards the direction approaching the tray, the second adjustable air door moves along with the second adjusting rod towards the direction approaching the tray.

Optionally, a partition plate is arranged in the heat exchange interlayer, the partition plate divides the heat exchange interlayer into an upper interlayer and a lower interlayer, one end of the heat exchange pipeline is communicated with the upper interlayer, and the other end of the heat exchange pipeline is communicated with the lower interlayer.

Through adopting the technical scheme, the heat exchange interlayer is divided into the upper interlayer and the lower interlayer through the partition plate, one end of the heat exchange pipeline is communicated with the upper interlayer, the other end of the heat exchange pipeline is communicated with the lower interlayer, and when the quick cooling mechanism cools the hot melting furnace, hot air flow in the hot melting cavity enters the upper interlayer along the first air passing opening on the first heat preservation door plate and then passes through the upper interlayer and enters the heat exchange pipeline to be cooled to form cold air flow; the cold air flow enters the lower interlayer from the other end of the heat exchange pipeline, then enters the hot melting cavity along the second air passing opening of the second heat preservation door plate, and cools the melted quartz raw material, so that a quick cooling cycle is formed in the whole hot melting furnace, and a good cooling effect is achieved.

Optionally, an air outlet is formed in one end, close to the lower interlayer, of the heat exchange pipeline, a wind shield is arranged on one side of the air outlet, and the wind shield is fixed on the inner side wall of the furnace body.

Through adopting above-mentioned technical scheme, the air current gets into in the heat transfer intermediate layer from the air outlet after the cooling, and the setting of deep bead is used for hindering the direct blowing heat preservation sleeve of cold air current to realize the protection to heat preservation sleeve.

In summary, the present application includes at least one of the following beneficial effects:

1. the rotatable tray is arranged in the hot melting furnace, and the tray is rotatably arranged on the furnace chassis, so that quartz raw materials on the tray can be uniformly contacted with the heating piece, the heating uniformity of the quartz raw materials is improved, the yield is improved, and the production cost of large-size synthetic quartz glass is reduced;

2. the stabilizing brace rod is arranged on the furnace chassis, and when the tray rotates, the riding wheel in the stabilizing brace rod props against the bottom of the tray, so that the supporting is provided for the tray, and a part of axial load is shared, so that the stability of the tray during rotation is improved;

3. be provided with the baffle in this application at the heat transfer intermediate layer, and the baffle separates the heat transfer intermediate layer into intermediate layer and lower intermediate layer, and heat transfer pipeline one end is linked together with last intermediate layer, and the heat transfer pipeline other end is linked together with lower intermediate layer, when quick cooling mechanism cools off the hot melting furnace, and the air current is difficult for carrying out heat transfer only in the port department at heat transfer pipeline both ends in the hot melting furnace, but forms quick cooling circulation inside whole hot melting furnace, has better heat transfer effect.

Drawings

FIG. 1 is a schematic view of the overall structure of a large vertical high temperature rotary furnace according to an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of a hot melt furnace according to an embodiment of the present application;

FIG. 3 is a schematic view of a partial enlarged structure at A in FIG. 2;

FIG. 4 is a schematic view of a partially enlarged structure at B in FIG. 2;

fig. 5 is a partially enlarged structural schematic diagram at C in fig. 2.

Reference numerals illustrate: 1. a hot melting furnace; 11. a furnace cover; 12. a furnace body; 121. a thermal insulation sleeve; 1211. a first accommodation groove; 1212. a second accommodation groove; 13. a furnace chassis; 14. a stabilizing brace; 141. a support rod; 142. a riding wheel; 15. first protection Wen Menban; 151. a first air passage; 152. a first adjustable damper; 1521. a first clamping groove; 153. a first adjusting lever; 1531. a top support block; 16. a second thermal insulation door panel; 161. a second air port; 162. a second adjustable damper; 1621. a second clamping groove; 163. a second adjusting lever; 1631. a support block; 17. a hot melt chamber; 18. a heat exchange interlayer; 181. an upper interlayer; 182. a lower interlayer; 2. a graphite heater; 21. a heating rod; 22. a mounting bar; 23. a conductive support; 24. a conductive joint; 3. a tray; 31. positioning a chassis; 32. a crucible; 4. a rotation mechanism; 41. a rotating rod; 411. a supporting rod; 412. crucible-rotating magnetic fluid; 413. a transmission shaft; 42. a drive assembly; 421. a first pulley; 422. a second pulley; 423. driving the endless belt; 424. a servo motor; 425. an output shaft; 5. a quick cooling mechanism; 51. a heat exchange pipeline; 511. a water-cooling air inlet flange; 512. a water-cooling air outlet flange; 52. a water-cooled heat exchanger; 521. a communicating pipe; 522. a cooling pipe; 53. a water-cooled vacuum blower; 6. a lifting mechanism; 61. a lifting bracket; 7. a partition plate; 8. a wind deflector; 9. a furnace frame; 10. a vacuum mechanism; 101. an air extraction pipeline; 102. and a vacuum pump.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

The embodiment of the application provides a large vertical high-temperature rotary furnace.

Referring to fig. 1, a large vertical high temperature rotary furnace comprises a furnace frame 9 and a hot melting furnace 1 arranged on the furnace frame 9, wherein the hot melting furnace 1 sequentially comprises a furnace cover 11, a furnace body 12 and a furnace bottom plate 13 from top to bottom, the furnace cover 11 is fixedly connected with the furnace body 12 through bolts, the furnace body 12 is fixedly connected to the furnace frame 9, and the furnace bottom plate 13 is positioned below the furnace body 12. In the present embodiment, the furnace body 12 is specifically provided in a cylindrical shape.

Referring to fig. 1, a lifting mechanism 6 is provided below the hearth plate 13 to effect sliding of the hearth plate 13 below the furnace body 12. When the lifting mechanism 6 drives the furnace chassis 13 to move vertically downwards, the furnace chassis 13 is separated from the furnace body 12, and the hot melting furnace 1 is in an opened state; when the lifting mechanism 6 drives the furnace chassis 13 to vertically move upwards until the furnace chassis 13 abuts against the furnace body 12, the hot melting furnace 1 is in a closed state. A lifting bracket 61 is fixedly connected to the moving end of the lifting mechanism 6 to drive the lifting bracket 61 to slide along the vertical direction. One end of the lifting bracket 61 is fixedly connected with the bearing frame so as to drive the furnace chassis 13 to move along the vertical direction.

The lifting mechanism 6 in this embodiment is a screw lifter device, and the lifting bracket 61 in other embodiments may be another type of lifting device.

Referring to fig. 1 and 2, a heating element is arranged in a hot melting furnace 1, the heating element is specifically configured as a graphite heater 2, the graphite heater 2 comprises a plurality of heating rods 21 and arc-shaped mounting strips 22, the mounting strips 22 are arranged around the inner side wall of a furnace body 12 at intervals, the heating rods 21 are fixedly connected to the mounting strips 22 and the heating rods 21 are distributed on the mounting strips 22 at equal intervals, and therefore the graphite heater 2 uniformly heats the inside of the furnace body 12.

Referring to fig. 2, in order to reduce heat loss generated in the hot melting furnace 1, a heat insulation sleeve 121 is fixed in the furnace body 12, a first heat insulation Wen Menban is fixed in the furnace cover 11, and a second heat insulation door plate 16 is fixed in the furnace bottom plate 13; one end of the heat preservation sleeve 121 is provided with a first accommodating groove 1211 for clamping the first heat preservation Wen Menban, and the other end is provided with a second accommodating groove 1212 for clamping the second heat preservation door plate 16; when the first protection Wen Menban is clamped in the first receiving groove 1211 and the second thermal insulation door panel 16 is located in the second receiving groove 1212, the hot melt cavity 17 is formed among the first protection Wen Menban, the thermal insulation sleeve 121 and the second thermal insulation door panel 16. Each heating rod 21 is positioned in the hot melting cavity 17, one side of each installation bar 22 close to the furnace body 12 is fixedly connected with a conductive support 23, and the conductive support 23 passes through the heat preservation sleeve 121 and is fixedly connected with the furnace body 12 so as to realize the installation and fixation of the graphite heater 2 on the furnace body 12. One section of the conductive support 23 far away from the mounting strip 22 is connected with a conductive connector 24, and one end of the conductive connector 24 penetrates out of the furnace body 12, so that the conductive connector is convenient to communicate with an external circuit. The thickness of the thermal insulation sleeve 121, the first insulation Wen Menban, and the second thermal insulation door panel 16 are all 160-200mm, and in this embodiment, 170mm is specifically selected.

Referring to fig. 2 and 3, a heat exchange interlayer 18 is formed between the inner side wall of the hot melting furnace 1 and the outer side wall of the hot melting cavity 17, a first air passing hole 151 capable of being opened or closed is formed in the first protection Wen Menban, and a second air passing hole 161 capable of being opened or closed is formed in the second heat insulation door plate 16 so as to control the communication between the hot melting cavity 17 and the heat exchange interlayer 18. The first air passing opening 151 of the first protection Wen Menban is slidably provided with a first adjustable air door 152, and the first adjustable air door 152 can be clamped into the first air passing opening 151 in the sliding process. The cross-sectional area of the end of the first adjustable air door 152 near the furnace cover 11 is larger than the cross-sectional area of the end far away from the furnace cover 11, and in this embodiment, the first adjustable air door 152 is specifically configured in a three-layer ladder shape. In other embodiments, the first damper 152 may also be configured in a frustoconical shape.

Referring to fig. 3, a first adjusting member for driving the first adjustable air door 152 to slide is disposed on the first protection Wen Menban, and the first adjusting member is specifically configured as a first adjusting rod 153, and one end of the first adjusting rod 153 penetrates through the first protection Wen Menban 15 and then penetrates into the end of the first adjustable air door 152 to be connected with a top supporting block 1531; the end of the first adjustable air door 152 is provided with a first clamping groove 1521, the top support block 1531 is clamped in the first clamping groove 1521, and the first adjusting rod 153 is in threaded connection with the first protection Wen Menban. When the first air passing opening 151 is required to be opened, the first adjusting lever 153 is rotated so that the first adjusting lever 153 moves in a direction approaching the furnace cover 11, and the first adjustable air door 152 is pushed to move upwards when the first adjusting lever 153 moves. The air flow rate at the first air passing opening 151 can be controlled by adjusting the upward moving distance of the first adjustable air door 152 so as to meet different requirements. In the present embodiment, three first adjusting rods 153 are specifically disposed on the first protection Wen Menban, and the three first adjusting rods 153 are uniformly distributed on the circumference of the first adjustable door 152.

Referring to fig. 4, a second adjustable door 162 is slidably disposed at the second air outlet 161 of the second thermal insulation door panel 16, and the second adjustable door 162 can be clamped into the second air outlet 161 during the sliding process. The cross-sectional area of the second damper 162 near the end of the cover 11 is larger than the cross-sectional area of the second damper 162 far from the cover 11, and in this embodiment, the shape of the second damper 162 is the same as that of the first damper 152.

Referring to fig. 4, a second adjusting member for driving the first adjustable air door 152 to slide is provided on the second thermal insulation door panel 16, the second adjusting member is specifically provided as a second adjusting rod 163, one end of the second adjusting rod 163 sequentially passes through the second thermal insulation door panel 16 and the second adjustable air door 162, and the first adjusting rod 153 is in threaded connection with the first thermal insulation door; one end of the second adjusting rod 163 penetrating through the second adjustable air door 162 is integrally formed with a supporting block 1631, and a second clamping groove 1621 for clamping the supporting block 1631 is formed in the end part of the second adjustable air door 162. When the second air passing opening 161 needs to be opened, the second adjusting lever 163 is rotated so that the second adjusting lever moves in a direction approaching the oven chassis 13, and when the second adjusting lever 163 moves, the second adjustable air door 162 moves downward along with the second adjusting lever 163 to open the second air passing opening 161. One end of the second adjusting rod 163, which is close to the second thermal insulation door plate 16, is further in threaded connection with a fastening nut, and when the second adjusting rod 163 is rotated to enable the second adjustable air door 162 to slide to a proper position, the fastening nut is rotated to enable the fastening nut to abut against the second thermal insulation door plate 16 so as to prevent the position of the second adjusting rod 163 from shifting.

Similarly, the gas flow rate at the second air passing opening 161 can be controlled by adjusting the distance the second damper 162 moves downward. In this embodiment, the second thermal door panel 16 is specifically provided with four second adjusting rods 163.

Referring to fig. 1 and 2, an annular partition 7 is provided in the heat exchange interlayer 18, and the partition 7 divides the heat exchange interlayer 18 into an upper interlayer 181 and a lower interlayer 182. In this embodiment, two partition plates 7 are arranged at intervals, wherein the outer side wall of one partition plate 7 is fixedly connected with the inner side wall of the furnace body 12, and the outer side wall of the other partition plate 7 is fixedly connected with the outer side wall of the furnace body 12. The heat exchange interlayer 18 is communicated with a quick cooling mechanism 5, and the quick cooling mechanism 5 comprises a heat exchange pipeline 51, a water-cooling heat exchanger 52 communicated with the pipe section of the heat exchange pipeline 51, and a driving piece communicated with the heat exchange pipeline 51. One end of the heat exchange pipeline 51 is communicated with a water-cooling air inlet flange 511, and the water-cooling air inlet flange 511 is communicated with an upper interlayer 181; the other end of the heat exchange tube is communicated with a water-cooling air outlet flange 512, and one end, close to the furnace body 12, of the water-cooling air outlet flange 512 is provided with an air outlet, and the air outlet enables the water-cooling air outlet flange 512 to be communicated with the lower interlayer 182. The water-cooled heat exchanger 52 includes a communicating pipe 521 and a cooling pipe 522 penetrating through the communicating pipe 521, the cooling pipe 522 is communicated with the outside, the communicating pipe 521 is connected to a pipe section of the heat exchange pipe 51 near the water-cooled air inlet flange 511, and the driving member is specifically configured as a water-cooled vacuum blower 53.

Referring to fig. 1 and 2, when the interior of the hot melting furnace 1 needs to be cooled, a water-cooling vacuum blower 53 is started to drive hot air flow in the hot melting cavity 17 to gradually flow to a water-cooling air inlet flange 511 along a first air passing opening 151, and hot air at the water-cooling air inlet flange 511 flows to a water-cooling heat exchanger 52, so that the water-cooling heat exchanger 52 cools the hot air flow; the cooled cold air flows into the lower interlayer 182 along the water-cooled air outlet flange 512 at one end of the heat exchange pipeline 51, and then flows into the hot melting cavity 17 along the second air passing opening 161, so that a cooling cycle is formed inside the hot melting furnace 1, and the inside of the hot melting furnace 1 is fully cooled.

Referring to fig. 2, in order to protect the heat insulation sleeve 121, a wind guard 8 is fixed to a side of the water-cooled air outlet flange 512 close to the heat insulation sleeve 121, so that the cold air flow flowing in from the water-cooled air outlet flange 512 is not easy to directly blow onto the heat insulation sleeve 121.

Referring to fig. 2 and 5, in order to improve the uniformity of heating of the quartz raw material, a rotating mechanism 4 is further provided on the base plate 13, the rotating mechanism 4 includes a rotating lever 41 and a driving assembly 42, and the rotating lever 41 is rotatably connected to the base plate 13; a bearing frame is fixedly connected to the bottom of the furnace chassis 13, and a driving assembly 42 is arranged on the bearing frame. The one end that bull stick 41 is close to furnace body 12 is provided with tray 3, and bull stick 41 includes interconnect's die-pin 411, crucible commentaries on classics magnetic fluid 412 and transmission shaft 413 from top to bottom in proper order, and second adjustable air door 162 and tray 3 fixed connection are passed to die-pin 411 one end, and the one end that the transmission shaft 413 was kept away from die-pin 411 passes furnace chassis 13 after wears to locate on the carriage and rotates with the carriage to be connected. The drive assembly 42 includes a first pulley 421, a second pulley 422, a drive belt 423, and a drive source. The drive source includes an output shaft 425, the output shaft 425 is located on one side of the drive shaft 413, and the output shaft 425 is rotatably connected to the carrier. The first belt wheel 421 is coaxially fixed on the transmission shaft 413, the second belt wheel 422 is coaxially fixed on the output shaft 425, and the driving endless belt 423 is sleeved outside the first belt wheel 421 and the second belt wheel 422; the driving source is specifically configured as a servo motor 424, and when the servo motor 424 is started, the driving shaft 413 can be driven to rotate, so that the tray 3 is driven to rotate.

Referring to fig. 2, the tray 3 includes a positioning base 31 and a crucible 32 which is clamped on the positioning base 31, and the quartz raw material is placed in the crucible 32 when the quartz raw material is melted. In order to improve the stability of the tray 3 during rotation, a stabilizing stay bar 14 is fixed on the inner side wall of the bottom plate 13; the stabilizing brace 14 comprises a support rod 141 and a riding wheel 142 rotatably connected to one end of the support rod 141, and one end of the support rod 141 passes through the second thermal insulation door panel 16 and then is connected with the riding wheel 142; the axis of the riding wheel 142 is parallel to the positioning chassis 31, and the riding wheel 142 is propped against the bottom of the positioning chassis 31. When the tray 3 rotates, the stabilizing stay 14 can share part of the axial load for the tray 3; if the stay 411 breaks, the stabilizer stay 14 can also prevent the tray 3 from tipping over.

Referring to fig. 1, in order to improve the purity of the obtained synthetic quartz glass, a vacuum mechanism 10 is further provided at the side of the hot melting furnace 1, and the vacuum mechanism 10 includes a suction pipe 101 and a vacuum pump 102 connected to one end of the suction pipe 101. When heating the quartz raw material in the hot melting furnace 1, it is necessary to remove the gas impurities in the hot melting furnace 1 by the vacuum mechanism 10, so that the quartz raw material is not easily oxidized in the process of performing the hot melting.

The implementation principle of the large vertical high-temperature rotary furnace provided by the embodiment of the application is as follows: causing the lifting mechanism 6 to drive the furnace chassis 13 to move downwards to start the hot melting furnace 1, and placing the quartz raw material into the crucible 32 in the tray 3; the first adjusting lever 153 and the second adjusting lever 163 are sequentially rotated to enable the first air passing opening 151 and the second air passing opening 161 to be in an opened state, and then the lifting mechanism 6 is started to enable the lifting mechanism 6 to move upwards so as to close the hot melting furnace 1. The vacuum pump 102 is started to vacuumize the inside of the hot melting furnace 1, and then the graphite heater 2 and the servo motor 424 are started to start, so that the quartz raw material on the tray 3 is heated while rotating. After the quartz raw material is completely melted, the graphite heater 2 is turned off, and the temperature in the hot melting furnace 1 is gradually reduced. When the temperature in the hot melting furnace 1 is reduced to 600 ℃, the quick cooling mechanism 5 is started to cool the interior of the hot melting furnace 1, so that the liquid quartz raw material in the hot melting furnace 1 is cooled and vitrified to obtain quartz glass.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. A large vertical high temperature rotary furnace, comprising:

a hot melt furnace (1), the hot melt furnace (1) comprising a furnace lid (11), a furnace body (12) and a hearth disk (13), the furnace lid (11) being connected to one end of the furnace body (12), the hearth disk (13) being configured to be movable away from and towards the furnace body (12);

the heating element is positioned in the furnace body (12);

the tray (3) is rotatably arranged on the bottom plate (13), and a rotating mechanism (4) for driving the tray (3) to rotate is arranged on the bottom plate (13);

the quick cooling mechanism (5), quick cooling mechanism (5) include heat exchange pipeline (51), water-cooling heat exchanger (52) and driving piece, the both ends of heat exchange pipeline (51) all with furnace body (12) intercommunication, water-cooling heat exchanger (52) communicate in on the pipeline section of heat exchange pipeline (51), the driving piece is used for driving the air current hot melting furnace (1) with circulate between heat exchange pipeline (51).

2. The large vertical type high temperature rotary furnace according to claim 1, further comprising a stabilizing stay bar (14), wherein the stabilizing stay bar (14) comprises a support bar (141) and a riding wheel (142) rotatably arranged at one end of the support bar (141); the supporting rod (141) is fixedly connected to the furnace chassis (13), and the riding wheel (142) is propped against the bottom of the tray (3); and/or

The furnace further comprises a lifting mechanism (6), wherein the lifting mechanism (6) is used for driving the furnace body (12) and the furnace bottom disc (13) to be close to or far away from each other.

3. A large vertical type high temperature rotary furnace according to claim 1, wherein,

the rotating mechanism (4) comprises a rotating rod (41) and a driving assembly (42), wherein the rotating rod (41) is rotatably connected to the furnace chassis (13), one end of the rotating rod (41) is connected with the tray (3), the other end of the rotating rod (41) penetrates out of the furnace chassis (13), and the driving assembly (42) is used for driving the rotating rod (41) to rotate.

4. A large vertical high temperature rotary furnace according to claim 3, characterized in that the drive assembly (42) comprises a first pulley (421), a second pulley (422), a drive belt (423) and a drive source, the first pulley (421) being fixed to one end of the rotating rod (41) passing through the hearth disc (13);

the driving source comprises an output shaft (425), the second belt wheel (422) is fixedly arranged on the output shaft (425), and the driving endless belt (423) is sleeved outside the first belt wheel (421) and the second belt wheel (422).

5. The large vertical high-temperature rotary furnace according to claim 1, wherein a heat preservation sleeve (121) is arranged in the furnace body (12), a first protector Wen Menban (15) is fixedly connected to one side of the furnace cover (11), a first air passing opening (151) capable of being opened or closed is formed in the first protector Wen Menban (15), a second heat preservation door plate (16) is fixedly connected to one side of the furnace bottom plate (13), and a second air passing opening (161) capable of being opened or closed is formed in the second heat preservation door plate (16);

the heat preservation sleeve (121), the first heat preservation Wen Menban (15) and the second heat preservation door plate (16) can form a hot melting cavity (17), and the heating piece and the tray (3) are both positioned in the hot melting cavity (17);

a heat exchange interlayer (18) can be formed between the outer side wall of the hot melting cavity (17) and the inner side wall of the hot melting furnace (1), and two ends of the heat exchange pipeline (51) are communicated with the heat exchange interlayer (18).

6. A large vertical type high temperature rotary furnace according to claim 5, wherein,

a first adjustable air door (152) is slidably arranged at the first air passing opening (151), the cross section of the first adjustable air door (152) close to one end of the tray (3) is smaller than the cross section of the first adjustable air door (152) far away from one end of the tray (3), and a first adjusting piece for driving the first adjustable air door (152) to slide is arranged on the first protector Wen Menban (15);

the second air outlet (161) is provided with a second adjustable air door (162) in a sliding manner, the cross section of the second adjustable air door (162) close to one end of the tray (3) is smaller than the cross section of the second adjustable air door (162) away from one end of the tray (3), and the second heat preservation door plate (16) is provided with a second adjusting piece used for driving the second adjustable air door (162) to slide.

7. The large vertical type high temperature rotary furnace according to claim 6, wherein the first adjusting member comprises a first adjusting rod (153), the first adjusting rod (153) is screwed with the first protector (Wen Menban) through the first protector (Wen Menban) (15), and the first adjusting rod (153) is abutted against the first adjustable damper (152) through one end of the first protector (Wen Menban) (15).

8. A large vertical type high temperature rotary furnace according to claim 7, wherein,

the second adjusting piece comprises a second adjusting rod (163), the second adjusting rod (163) sequentially penetrates through the second adjustable air door (162) and the second heat-preserving door plate (16) and is in threaded connection with the second heat-preserving door plate (16), one end of the second adjusting rod (163), which penetrates through the second adjustable air door (162), is provided with a supporting block (1631), and the supporting block (1631) is used for propping against the second adjustable air door (162).

9. The large vertical high-temperature rotary furnace according to claim 5, wherein a partition plate (7) is arranged in the heat exchange interlayer (18), the partition plate (7) divides the heat exchange interlayer (18) into an upper interlayer (181) and a lower interlayer (182), one end of the heat exchange pipeline (51) is communicated with the upper interlayer (181), and the other end of the heat exchange pipeline (51) is communicated with the lower interlayer (182).

10. The large vertical high-temperature rotary furnace according to claim 9, wherein one end of the heat exchange pipeline (51) close to the lower interlayer (182) is an air outlet, a wind shield (8) is arranged on one side of the air outlet, and the wind shield (8) is fixed on the inner side wall of the furnace body (12).