Quartz sand smelting furnace with preheating function

Abstract

The invention discloses a quartz sand smelting furnace with a preheating function, and relates to the technical field of smelting furnaces, the quartz sand smelting furnace comprises a smelting furnace, a supporting seat is rotatably connected to the outer side wall of the smelting furnace through a motor, two furnace doors are symmetrically and rotatably connected to the top of the smelting furnace, and a preheating turning assembly is arranged at the top of the smelting furnace and comprises a hydraulic rod; the hydraulic rod is fixedly connected to the top of the supporting seat, a preheating furnace is fixedly connected to the telescopic end of the supporting seat, and two discharging doors are symmetrically and rotationally connected to the bottom end of the preheating furnace; the preheated quartz sand enters the smelting furnace, the temperature fluctuation in the smelting furnace can be reduced, the continuity and stability of the working process of the smelting furnace can be kept, meanwhile, the initial temperature of the preheated quartz sand is high, and the preheated quartz sand can reach the melting point and be molten more quickly after entering the smelting furnace; therefore, the melting time of each batch of quartz sand in the melting furnace can be shortened, and meanwhile, the energy consumption required for heating the quartz sand can be reduced, so that the production efficiency of the melting furnace is improved.

Description

Technical Field

[0001] The invention relates to the technical field of melting furnaces, in particular to a quartz sand melting furnace with a preheating function. Background Art

[0002] A quartz sand melting furnace is an industrial equipment used to melt quartz sand. It transforms quartz sand from solid to liquid by heating to meet the needs of subsequent production processes, such as manufacturing glass, quartz crucibles, quartz ceramics and other products.

[0003] Traditional quartz sand melting furnaces do not have the function of preheating the quartz sand to be processed. They need to rely entirely on heating elements to heat the room-temperature quartz sand to the melting point. When the room-temperature quartz sand is directly heated, the rapid temperature change will bring many additional maintenance burdens to the furnace. For example, the heating elements frequently experience a process from high temperature to a sudden drop in temperature due to the heat absorption of the quartz sand, which is prone to thermal expansion and contraction fatigue. At the same time, for the furnace structure, the internal structure of the lining material will gradually be damaged when it is subjected to rapid temperature fluctuations, increasing the frequency and cost of shutdown maintenance due to damage to the furnace. At the same time, direct heating of room-temperature quartz sand requires a large amount of energy to increase the initial temperature of the quartz sand. In this process, sufficient heat needs to be provided to make up for the huge temperature difference, which will cause energy consumption to account for a high proportion of the entire production cost.

[0004] Therefore, a quartz sand melting furnace with a preheating function is proposed. Summary of the invention

[0005] The object of the present invention is to provide a quartz sand melting furnace with a preheating function to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a quartz sand melting furnace with a preheating function, comprising a melting furnace, a support seat is rotatably connected to the outer wall of the melting furnace, two furnace doors are symmetrically rotatably connected to the top of the melting furnace, a preheating flip assembly is arranged on the top of the melting furnace, and the preheating flip assembly comprises a hydraulic rod, the hydraulic rod is fixedly connected to the top of the support seat, the telescopic end of the support seat is fixedly connected to the preheating furnace, the bottom end of the preheating furnace is symmetrically rotatably connected to two unloading doors, the top of the preheating furnace is rotatably connected to a loading door, a heat conducting pipe is rotatably connected between the upper and lower walls of the preheating furnace, an air inlet pipe is fixedly connected to the furnace door on the side away from the support seat, the end of the heat conducting pipe that passes through the preheating furnace at the top is rotatably connected to an exhaust pipe, the top outer wall of the preheating furnace is fixedly connected to an upper motor, and the upper The output shaft of the motor is connected to the outer wall of one end of the heat conduction pipe passing through the top of the preheating furnace by a synchronous belt through a pulley transmission. The exhaust pipe is wound around one end of the bottom of the outer wall of the preheating furnace and is fixedly connected to a restraining block. The side wall of the restraining block is fixedly connected to a telescopic tube, and the telescopic end of the telescopic tube is fixedly connected to a drainage plate. A spring is fixedly connected between the restraining block and the drainage plate, and a connecting rod is fixedly connected to the bottom of the drainage plate. The end of the connecting rod away from the drainage plate is fixedly connected to the inlet sealing plate. The part of the heat conduction pipe located inside the preheating furnace is symmetrically connected to four rotating shafts in an up-and-down staggered manner, and each end of the four rotating shafts away from the heat conduction pipe is rotatably connected to a cross-shaped stirring paddle plate, and each end of the four cross-shaped stirring paddle plates away from the heat conduction pipe is fixedly connected to a gear. The inner wall of the preheating furnace is fixedly connected to two annular toothed plates distributed up and down.

[0007] Furthermore, an adding component is provided inside the preheating furnace, and the adding component includes an outer sealing fence, which is sleeved on the top of the heat conduction pipe, and the bottom of the outer sealing fence is rotatably connected to a chassis, and the bottom of the chassis is fixedly connected to four conduits in a circular array, and multiple leakage holes are opened on the four cross-shaped stirring paddle plates.

[0008] Furthermore, the telescopic end of the support seat extends to directly above the furnace, the exhaust pipe is spirally wound around the outer wall of the preheating furnace, and the restraining block is fixedly connected to the outer side wall of the preheating furnace.

[0009] Furthermore, the spring is located inside the telescopic tube, and the bottom of the sealing plate extends to the bottom of the telescopic tube.

[0010] Furthermore, the bottom end of the connecting rod extends to the bottom end of the heat conducting pipe.

[0011] Furthermore, the four rotating shafts are arranged in groups of two, the two rotating shafts in the same group are coaxially arranged, and the upper and lower groups of rotating shafts are perpendicular to each other.

[0012] Furthermore, the air inlet pipe is connected and adapted to the bottom end of the heat conduction pipe, the bottom end of the exhaust pipe is located on the moving path of the exhaust sealing plate, the bottom end of the heat conduction pipe is located on the moving path of the inlet sealing plate, and the inlet sealing plate is located on the moving path of the air inlet pipe.

[0013] Furthermore, the two gears in the same group are meshed with the corresponding annular gear plates.

[0014] Furthermore, the chassis is rotatably connected to the outer wall of the heat conducting pipe.

[0015] Furthermore, the rotating shaft and the cross-shaped stirring paddle are both hollow, and the bottom ends of the four conduits extend into the interior of the corresponding rotating shaft respectively.

[0016] Compared with the prior art, the present invention has the following beneficial effects: By preheating the quartz sand into the furnace, the temperature fluctuation in the furnace can be reduced, which is conducive to maintaining the continuity and stability of the furnace working process. At the same time, the initial temperature of the preheated quartz sand is higher, and it can reach the melting point and melt faster after entering the furnace, which can shorten the melting time of each batch of quartz sand in the furnace and reduce the energy consumption required for heating the quartz sand, thereby improving the production efficiency of the furnace; The quartz sand inside the preheating furnace is heated synchronously by heat conduction from the heat pipe and the cross-shaped stirring paddle. At the same time, the exhaust pipe wrapped around the outside of the preheating furnace plays an external heating role on the quartz sand inside the preheating furnace. This simultaneous internal and external heating method allows the quartz sand to receive heat in all directions, allowing it to absorb heat more quickly and fully, further improving the overall heating efficiency. The quartz sand is horizontally stirred and turned up and down inside the preheating furnace, and at the same time, the quartz sand is heated by the cross-shaped stirring paddle with heat through heat conduction, so that the heat can be quickly transferred to each part of the quartz sand, making the preheating temperature of each part of the quartz sand more uniform; The quartz sand is preheated by the waste heat generated during the operation of the furnace, so that the waste heat that would have been directly dissipated into the surrounding environment and wasted can be reused, so that the working states of the furnace and the preheated quartz sand can cooperate with each other, improving the stability and reliability of the entire furnace operation; Under the action of the rotation of the cross-shaped stirring paddle, the additives are sprinkled into the quartz sand inside the preheating furnace through the leak hole, and then the quartz sand inside the preheating furnace is evenly sprinkled with the additives during the stirring and turning process, which can ensure that the additives used to improve the melting performance of the quartz sand and improve the product quality are evenly distributed in the quartz sand, so that each part of the quartz sand can obtain the appropriate proportion of additives, ensuring the consistency of the additives at various positions in the process of melting the quartz sand in the furnace, and further improving the finished product effect of the fused quartz sand in the furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the overall device of the present invention; Figure 2 It is a bottom view schematic diagram of the overall device of the present invention; Figure 3 For the present invention Figure 2 The enlarged schematic diagram at A in the middle; Figure 4 It is a vertical cutaway schematic diagram of the preheating and flipping assembly of the present invention; Figure 5 For the present invention Figure 4 The enlarged schematic diagram of point B in the middle; Figure 6 For the present invention Figure 4 The enlarged schematic diagram at C in the middle; Figure 7 This is a transverse cross-sectional schematic diagram of the preheating and flipping assembly of the present invention; Figure 8 For the present invention Figure 7 The enlarged schematic diagram at D in the middle; Fig. 9 For the present invention Figure 7 The enlarged schematic diagram at E in the middle; Fig.10 This is a bottom-up cutaway schematic diagram of a preheating and flipping assembly of the present invention; Fig.11 For the present invention Fig.10 The enlarged schematic diagram at F in the middle; Fig.12 This is a schematic diagram of the structural positions of the cross-shaped stirring blade, annular tooth plate, etc. of the present invention; Fig.13 For the present invention Fig.12 Enlarged schematic diagram at point G in the middle.

[0018] In the figure: 11. Support base; 12. Furnace; 13. Furnace door; 21. Hydraulic rod; 22. Preheating furnace; 23. Unloading door; 24. Loading door; 25. Heat pipe; 26. Inlet pipe; 27. Exhaust pipe; 28. Upper motor; 29. ​​Synchronous belt; 210. Restraining block; 211. Telescopic pipe; 212. Discharge plate; 213. Spring; 214. Connecting rod; 215. Inlet plate; 216. Rotating shaft; 217. Cross-shaped stirring paddle; 218. Gear; 219. Ring gear plate; 31. Outer fence; 32. Chassis; 33. Conduit; 34. Leakage hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Embodiments provided by the present invention: Example 1: Please refer to Figures 1 to 13 As shown, a quartz sand furnace with a preheating function includes a furnace 12, on the outer wall of the furnace 12 is rotatably connected a support seat 11, the support seat 11 can be fixed to the ground of the working environment by existing bolts, and the top of the furnace 12 is symmetrically rotatably connected to two furnace doors 13.

[0021] The support seat 11 is rotatably connected to the furnace 12 via a motor, and the motor is controlled by a controller. Specifically, the user can use the controller to make the motor drive the furnace 12 to rotate.

[0022] A preheating turning assembly is provided on the top of the furnace 12, and the preheating turning assembly is used to preheat the quartz sand to be added by means of the hot gas generated by the furnace 12, and to turn the quartz sand during the preheating process. The preheating turning assembly includes a hydraulic rod 21, and the hydraulic rod 21 is fixedly connected to the top of the support seat 11. The telescopic end of the support seat 11 extends to the top of the furnace 12. A preheating furnace 22 is fixedly connected to the telescopic end of the support seat 11. The bottom end of the preheating furnace 22 is symmetrically rotatably connected to two unloading doors 23, and the top end of the preheating furnace 22 is rotatably connected to a loading door 24. The upper and lower ends of the preheating furnace 22 are rotatably connected. A heat conducting pipe 25 is rotatably connected between the walls, an air inlet pipe 26 is fixedly connected to the furnace door 13 on the side away from the hydraulic rod 21, an exhaust pipe 27 is rotatably connected to one end of the heat conducting pipe 25 passing through the preheating furnace 22, the exhaust pipe 27 is spirally wound around the outer wall of the preheating furnace 22, an upper motor 28 is fixedly connected to the outer wall of the top of the preheating furnace 22, the output shaft of the upper motor 28 and the outer wall of the end where the heat conducting pipe 25 passes through the top of the preheating furnace 22 are connected by a synchronous belt 29 through a pulley drive, and a restraining block 210 is fixedly connected to one end of the exhaust pipe 27 wound around the bottom of the outer wall of the preheating furnace 22. The tie block 210 is fixedly connected to the outer wall of the preheating furnace 22, and the side wall of the tie block 210 is fixedly connected with a telescopic tube 211, and the telescopic end of the telescopic tube 211 is fixedly connected with a sealing plate 212. A spring 213 is fixedly connected between the tie block 210 and the sealing plate 212, and the spring 213 is located inside the telescopic tube 211. The sealing plate 212 is L-shaped and extends to the bottom of the telescopic tube 211. The bottom of the sealing plate 212 is fixedly connected with a connecting rod 214, and the bottom end of the connecting rod 214 extends to the bottom of the heat conducting pipe 25. The end of the connecting rod 214 away from the sealing plate 212 is fixedly connected There is an inlet sealing plate 215, and the part of the heat pipe 25 located inside the preheating furnace 22 is symmetrically connected to four rotating shafts 216 in an up-down staggered manner. The four rotating shafts 216 are grouped in pairs, and the two rotating shafts 216 in the same group are coaxially arranged horizontally, and the upper and lower groups of rotating shafts 216 are perpendicular to each other. The ends of the four rotating shafts 216 away from the heat pipe 25 are each rotatably connected to a cross-shaped stirring paddle plate 217, and the ends of the four cross-shaped stirring paddle plates 217 away from the heat pipe 25 are each fixedly connected to a gear 218, and the inner wall of the preheating furnace 22 is fixedly connected to two annular toothed plates 219 distributed up and down.

[0023] Among them: Reference Figure 3 , Figure 6 As shown, the bottom end of the heat conducting pipe 25 is configured to be an outwardly expanded disc shape, and the two unloading doors 23 are provided with through grooves adapted to the disc shape of the bottom end of the heat conducting pipe 25 .

[0024] Among them: the support seat 11 can flip the furnace 12 through the motor, so that the molten quartz sand inside the furnace 12 can be poured out, and the two unloading doors 23 and the loading door 24 are connected to the preheating furnace 22 through the motor. Specifically, motors are installed at the positions of the preheating furnace 22 corresponding to the unloading door 23 and the loading door 24, and the output shaft of the motor is respectively fixed to the rotating connecting shaft of the unloading door 23 and the preheating furnace 22, and the loading door 24 is fixed to the rotating connecting shaft of the preheating furnace 22, that is, the user can control the rotation of the motor output shaft through the controller to drive the opening and closing of the two unloading doors 23 and the loading door 24, that is, control the loading and unloading of quartz sand inside the preheating furnace 22.

[0025] Among them: the air inlet pipe 26 is connected and adapted to the bottom end of the heat conducting pipe 25 , and the bottom end of the exhaust pipe 27 is located on the moving path of the sealing plate 212 , that is, when the spring 213 does not undergo elastic deformation, the sealing plate 212 blocks the bottom end of the exhaust pipe 27 .

[0026] The bottom end of the heat conducting pipe 25 is located on the moving path of the sealing plate 215 , that is, when the sealing plate 212 moves to block the exhaust pipe 27 , the sealing plate 215 also blocks the bottom end of the heat conducting pipe 25 .

[0027] Wherein: the heat conducting pipe 25, the exhaust pipe 27 and the cross-shaped stirring blade 217 are made of copper metal material with good thermal conductivity.

[0028] Among them: the sealing plate 215 is located on the moving path of the air inlet pipe 26, that is, when the air inlet pipe 26 follows the furnace 12 to rotate to the bottom of the preheating furnace 22, the air inlet pipe 26 can squeeze and push the sealing plate 215 to not block the bottom end of the heat pipe 25, and at this time the air inlet pipe 26 is connected to the inside of the heat pipe 25.

[0029] Among them: Reference Figure 8 As shown, the same set of two gears 218 are meshed with corresponding annular gear plates 219 .

[0030] When the preheating and turning assembly is in use, the entire preheating and turning assembly is in the process of melting the quartz sand in the furnace 12. Figure 1 As shown in , at this time, the furnace 12 is in a vertical shape, the air inlet pipe 26 is connected to the heat transfer pipe 25, the air inlet sealing plate 215 is in contact with the outer wall of the air inlet pipe 26, the spring 213 is elastically stretched, and the exhaust sealing plate 212 does not block the exhaust pipe 27. At this time, the two unloading doors 23 and the loading door 24 are not rotated, so that the interior of the preheating furnace 22 is sealed, and the next batch of quartz sand to be melted is stored in the preheating furnace 22.

[0031] In the process of melting the quartz sand inside the furnace 12, the air inside it will be heated together. The hot air floats upward inside the furnace 12 and enters the heat pipe 25 through the air inlet pipe 26. The hot air circulates inside the heat pipe 25 and circulates to the outside through the exhaust pipe 27.

[0032] While hot air is circulating inside the heat pipe 25 and the exhaust pipe 27, the hot air generates heat through heat conduction, and the heat pipe 25 and the exhaust pipe 27 generate heat through heat conduction. At the same time, the heat pipe 25 is heated and the cross-shaped stirring paddle 217 is heated synchronously through heat conduction between the metals. As a result, the quartz sand inside the preheating furnace 22 is heated synchronously by heat conduction from the heat pipe 25 and the cross-shaped stirring paddle 217. At the same time, the exhaust pipe 27 wrapped around the outside of the preheating furnace 22 performs external heating on the quartz sand inside the preheating furnace 22. This simultaneous internal and external heating method allows the quartz sand to receive heat in all directions, allowing it to absorb heat more quickly and fully, further improving the overall heating efficiency.

[0033] At the same time, the user starts the upper motor 28 through the controller, and then the output shaft of the upper motor 28 rotates, and the output shaft of the upper motor 28 drives the heat pipe 25 to rotate synchronously through the synchronous belt 29. While the heat pipe 25 rotates, it drives the upper and lower groups of cross-shaped stirring paddles 217 to rotate synchronously through the rotating shaft 216. When the cross-shaped stirring paddle 217 rotates, the gear 218 engages the annular gear plate 219 so that the cross-shaped stirring paddle 217 rotates perpendicular to the rotation direction of the heat pipe 25 at this time. Figure 7 and Figure 8 As shown, at this time, the four cross-shaped stirring paddles 217 rotate around the rotating shaft 216 while following the rotation of the heat pipe 25, and then the quartz sand inside the preheating furnace 22 is subjected to the rotation effect of the cross-shaped stirring paddles 217, which is manifested as: the quartz sand is horizontally stirred and turned up and down inside the preheating furnace 22, and at the same time, the quartz sand is heated by the cross-shaped stirring paddles 217 with heat through heat conduction, so that the heat can be quickly transferred to various parts of the quartz sand, so that the preheating temperature of various parts of the quartz sand is more uniform, and the molten quartz sand can be effectively preheated.

[0034] When the quartz sand inside the furnace 12 is completely melted, the user controls the motor through the controller to make the furnace 12 rotate on the support seat 11 in the direction away from the sealing plate 212, so that the air inlet pipe 26 is no longer connected to the heat pipe 25. At this time, under the action of the elastic contraction of the spring 213, the sealing plate 212 blocks the bottom end of the exhaust pipe 27, and the sealing plate 215 blocks the bottom end of the heat pipe 25. At this time, the hot air inside the heat pipe 25 and the exhaust pipe 27 no longer escapes to the outside, which has the effect of keeping the preheated quartz sand inside the preheating furnace 22 warm.

[0035] During the rotation of the furnace 12, the user controls the motor through the controller to rotate and open the two furnace doors 13 so that the top of the furnace 12 is open. As the furnace 12 rotates, the molten quartz sand inside is poured out. After the pouring is completed, the user returns the furnace 12 to the right position. When the furnace 12 is returned to the right position, the user controls the two unloading doors 23 to rotate downward through the controller. Since the sealing plate 215 previously blocked the bottom end of the heat pipe 25, the sealing plate 215 is now located at the bottom of the disc at the bottom end of the heat pipe 25, and the sealing plate 215 and the connecting rod 214 are not located on the downward rotation path of the two unloading doors 23. At the same time, since the top of the furnace 12 is open at this time, the quartz sand inside the preheating furnace 22 can be poured into the furnace 12.

[0036] At this time, the two furnace doors 13 and the two unloading doors 23 are both in an open state. When all the preheated quartz sand enters the furnace 12, the user rotates the furnace 12 away from the sealing plate 212 again, so that the furnace 12 and the preheating furnace 22 are misaligned. During the misalignment process, the controller controls the motor to rotate and reset the two furnace doors 13 and the two unloading doors 23. After completion, the furnace 12 is returned to the normal state. At this time, the air inlet pipe 26 returns to a vertical state. Combined with the above, as the furnace 12 is returned to the normal state, the air inlet pipe 26 is connected to the heat transfer pipe 25. At this time, the preheated quartz sand is melted inside the furnace 12. Then, the controller controls the motor to open the loading door 24 to add a new batch of quartz sand that needs to be preheated into the preheating furnace 22.

[0037] By allowing the preheated quartz sand to enter the interior of the furnace 12, the temperature fluctuation in the furnace 12 can be reduced, which is beneficial to maintaining the continuity and stability of the working process of the furnace 12. At the same time, the initial temperature of the preheated quartz sand is higher, and it can reach the melting point and melt faster after entering the furnace 12. This can shorten the melting time of each batch of quartz sand in the furnace 12, and at the same time reduce the energy consumption required for heating the quartz sand, thereby improving the production efficiency of the furnace 12.

[0038] The quartz sand is preheated with the help of the waste heat generated during the operation of the furnace 12, so that the waste heat that would have been directly dissipated into the surrounding environment and wasted can be reused, so that the working conditions of the furnace 12 and the preheated quartz sand can cooperate with each other to form a positive cycle, thereby improving the stability and reliability of the operation of the entire furnace 12.

[0039] Example 2: Reference Figure 5 as well as Figure 8 , Fig. 9 , Fig.13As shown, an adding component is provided inside the preheating furnace 22, and the adding component is used to add additives such as co-solvents and impurity removers to the inside of the quartz sand during the waste heat of the quartz sand, which are used to improve the melting performance of the quartz sand and improve the product quality. The adding component includes an outer sealing fence 31, and the outer sealing fence 31 is sleeved on the top of the heat conducting pipe 25. The bottom of the outer sealing fence 31 is rotatably connected to a chassis 32, and the chassis 32 is rotatably connected to the outer wall of the heat conducting pipe 25. The bottom of the chassis 32 is fixedly connected to four conduits 33 in an annular array, and a plurality of leakage holes 34 are opened on the four cross-shaped stirring paddles 217.

[0040] Wherein: the outer sealing fence 31 is located inside the preheating furnace 22, and the outer sealing fence 31 is fixedly connected to the top of the inner wall of the preheating furnace 22, referring to Figure 5 As shown, a portion of the outer seal 31 located at the bottom of the loading door 24 is not connected to the loading door 24, that is, the user can open the loading door 24 to add quartz sand to the interior of the preheating furnace 22 while adding additives to the interior of the outer seal 31. Specifically, the outer seal 31 will not be affected when the loading door 24 is flipped upward.

[0041] Among them: Reference Figure 1 , Figure 4 and Figure 5 As shown, the loading door 24 is configured to be semicircular, and a through groove adapted to the top of the heat pipe 25 is provided on the semicircular vertical edge of the loading door 24 , so that the upward flipping of the loading door 24 will not affect the heat pipe 25 .

[0042] Among them: Reference Figure 8 and Fig.13 The rotating shaft 216 and the cross-shaped stirring blade 217 are both configured to be hollow.

[0043] Among them: Reference Figure 8 As shown, the bottom ends of the four conduits 33 extend into the corresponding rotating shaft 216 , and the bottom ends of the conduits 33 are configured as inclined tubes facing the cross-shaped stirring paddle 217 .

[0044] When the adding component is running, in the process of preheating and flipping the component, specifically, the cross-shaped stirring paddle 217 is in the process of horizontally rotating around the heat pipe 25 and rotating around the rotating shaft 216. At this time, the cross-shaped stirring paddle 217 follows the rotation of the heat pipe 25, and drives the chassis 32 to rotate synchronously through the conduit 33. The additive inside the outer seal 31 flows into the cross-shaped stirring paddle 217 through the conduit 33. Since the rotating shaft 216 and the cross-shaped stirring paddle 217 are rotatably connected, the cross-shaped stirring paddle 217 will only rotate on the rotating shaft 216, and the additive Under the centrifugal effect caused by the rotation of the cross-shaped stirring paddle 217, the additives are sprinkled into the quartz sand inside the preheating furnace 22 through the leak hole 34, and then the quartz sand inside the preheating furnace 22 is evenly sprinkled with additives during the process of being stirred and turned, which can ensure that the additives used to improve the melting performance of the quartz sand and improve the product quality are evenly distributed in the quartz sand, so that each part of the quartz sand can obtain a suitable proportion of additives, ensuring the consistency of the additives at various positions during the process of melting the quartz sand in the melting furnace 12, and further improving the finished product effect of the fused quartz sand in the melting furnace 12.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quartz sand melting furnace with a preheating function, comprising a melting furnace (12), a support seat (11) being rotatably connected to the outer wall of the melting furnace (12), and two furnace doors (13) being symmetrically rotatably connected to the top of the melting furnace (12), characterized in that: A preheating flip assembly is arranged on the top of the melting furnace (12), and the preheating flip assembly comprises a hydraulic rod (21), the hydraulic rod (21) is fixedly connected to the top of the support seat (11), a preheating furnace (22) is fixedly connected to the telescopic end of the support seat (11), the bottom end of the preheating furnace (22) is symmetrically rotatably connected to two unloading doors (23), the top end of the preheating furnace (22) is rotatably connected to a loading door (24), and a heat conduction pipe (25) is rotatably connected between the upper and lower walls of the preheating furnace (22). ), an air inlet pipe (26) is fixedly connected to the furnace door (13) on the side away from the hydraulic rod (21), an end of the heat conducting pipe (25) passing through the top of the preheating furnace (22) is rotatably connected to an exhaust pipe (27), an upper motor (28) is fixedly connected to the outer wall of the top of the preheating furnace (22), an output shaft of the upper motor (28) and the outer wall of the end of the heat conducting pipe (25) passing through the top of the preheating furnace (22) are connected to a synchronous belt (29) through a pulley drive, and the exhaust pipe (27) is wound around the preheating furnace ( 22) A restraining block (210) is fixedly connected to one end of the bottom of the outer wall, a telescopic tube (211) is fixedly connected to the side wall of the restraining block (210), a telescopic end of the telescopic tube (211) is fixedly connected to a sealing plate (212), a spring (213) is fixedly connected between the restraining block (210) and the sealing plate (212), a connecting rod (214) is fixedly connected to the bottom of the sealing plate (212), and an end of the connecting rod (214) away from the sealing plate (212) is fixedly connected to the sealing plate (212). 15), the portion of the heat conduction pipe (25) located inside the preheating furnace (22) is symmetrically rotatably connected to four rotating shafts (216) in an up-down staggered manner, each end of the four rotating shafts (216) away from the heat conduction pipe (25) is rotatably connected to a cross-shaped stirring paddle (217), each end of the four cross-shaped stirring paddles (217) away from the heat conduction pipe (25) is fixedly connected to a gear (218), and the inner wall of the preheating furnace (22) is fixedly connected to two annular toothed plates (219) in an up-down distribution.

2. The quartz sand melting furnace with preheating function according to claim 1, characterized in that: An adding component is arranged inside the preheating furnace (22), and the adding component comprises an outer sealing fence (31). The outer sealing fence (31) is sleeved on the top of the heat conducting pipe (25), and the bottom of the outer sealing fence (31) is rotatably connected to a chassis (32). The bottom of the chassis (32) is fixedly connected to four conduits (33) in a circular array, and a plurality of leakage holes (34) are provided on the four cross-shaped stirring paddles (217).

3. The quartz sand melting furnace with preheating function according to claim 1, characterized in that: The telescopic end of the support seat (11) extends to directly above the melting furnace (12), the exhaust pipe (27) is spirally wound around the outer wall of the preheating furnace (22), and the restraining block (210) is fixedly connected to the outer wall of the preheating furnace (22).

4. The quartz sand melting furnace with preheating function according to claim 1, characterized in that: The spring (213) is located inside the telescopic tube (211), and the bottom of the sealing plate (212) extends to the bottom of the telescopic tube (211).

5. The quartz sand melting furnace with preheating function according to claim 1, characterized in that: The bottom end of the connecting rod (214) extends to the bottom end of the heat conducting pipe (25).

6. The quartz sand melting furnace with preheating function according to claim 1, characterized in that: The four rotating shafts (216) are arranged in groups of two, and the two rotating shafts (216) in the same group are coaxially arranged, and the upper and lower groups of rotating shafts (216) are perpendicular to each other.

7. The quartz sand melting furnace with preheating function according to claim 1, characterized in that: The air inlet pipe (26) is connected and adapted to the bottom end of the heat conducting pipe (25); the bottom end of the air exhaust pipe (27) is located on the moving path of the exhaust sealing plate (212); the bottom end of the heat conducting pipe (25) is located on the moving path of the air inlet sealing plate (215); and the air inlet sealing plate (215) is located on the moving path of the air inlet pipe (26).

8. The quartz sand melting furnace with preheating function according to claim 1, characterized in that: The two gears (218) of the same group are meshed with the corresponding annular gear plate (219).

9. The quartz sand melting furnace with preheating function according to claim 2, characterized in that: The bottom plate (32) is rotatably connected to the outer wall of the heat conducting pipe (25).

10. The quartz sand melting furnace with preheating function according to claim 2, characterized in that: The rotating shaft (216) and the cross-shaped stirring paddle (217) are both hollow, and the bottom ends of the four conduits (33) extend into the interior of the corresponding rotating shaft (216).

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