Heating assembly for fused quartz furnace

Abstract

The invention discloses a heating assembly for a fused quartz furnace, and belongs to the technical field of heating, the heating assembly comprises a furnace body, a fixed seat is arranged on the bottom side in the furnace body, the heating assembly also comprises two hydraulic push rods which are distributed at the bottom of the fixed seat in a circumferential array, and the bottoms of the hydraulic push rods are fixedly connected with the inner wall of the furnace body. According to the invention, the heating block and the heat conduction block are inserted and mounted along the limiting sliding groove, the use positions of the limiting sliding block, the heating block and the heat conduction block are limited through the limiting sliding groove, and the furnace cover can limit and fix the top of the heating block, so that the hydraulic push rod drives the fixed seat to move upwards, and the heat conduction block enters the heating block; the use height between the heating block and the heat conduction block is adjusted to meet the heating requirements of different crucible heights, so that the different heating requirements of the equipment in the use process are guaranteed, a heat source is effectively focused, energy loss is reduced, and the applicability and the energy efficiency level of the equipment are remarkably improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of heating, and particularly relates to a heating assembly for a fused quartz furnace. BACKGROUND

[0002] The fused quartz furnace is a special high-temperature industrial electric furnace for melting high-purity quartz sand at high temperature and then making transparent or opaque fused quartz products through a specific process. The fused quartz furnace is commonly used for producing fused quartz glass. In the high-temperature, pure and precisely controlled process environment required for fused quartz, graphite becomes an irreplaceable heating assembly material in the fused quartz high-temperature smelting furnace due to its extremely high temperature resistance, good thermal stability, thermal shock resistance and excellent thermal and electrical conductivity.

[0003] As disclosed in Chinese Patent Document (CN111847865A), a sleeve type graphite heater includes a graphite cylinder, which is divided into a semicircular block left electrode and a semicircular block right electrode, a left connecting arc block and a right connecting arc block, an upper series connection arc block and a lower series connection arc block by an axial separation groove and a circular arc separation groove. The semicircular block left electrode and the semicircular block right electrode are arranged at one end of the graphite cylinder and are divided in half. The middle of the semicircular block left electrode and the semicircular block right electrode is respectively connected to the left connecting arc block and the right connecting arc block extending to the other end of the graphite cylinder. The end head upper side of the left connecting arc block is connected to the end head upper side of the right connecting arc block via the upper series connection arc block. The end head lower side of the left connecting arc block is connected to the end head lower side of the right connecting arc block via the lower series connection arc block, forming a series connection circuit with two-way parallel connection. The sleeve shape of the invention is fixed. By arranging multiple graphite arc blocks, the resistance value can be changed to adapt to and match the requirements of different specifications of glass lining tube melting and shrinking processing, and improve the efficiency and quality of glass lining tube melting and shrinking. However, the overall sleeve mechanism has poor applicability in use, cannot be adjusted in fluctuation according to different crucible heights, affects the overall heating degree of the equipment, and is inconvenient to maintain. Therefore, improvement is needed. SUMMARY

[0004] The purpose of the present application is to solve the problem of poor applicability of the overall sleeve mechanism in use, inability to adjust in fluctuation according to different crucible heights, and inconvenience in maintaining the overall heating degree of the equipment in the prior art. A heating assembly for a fused quartz furnace is proposed.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] A heating assembly for a fused quartz furnace, comprising a furnace body, a fixed seat is arranged on the inside bottom side of the furnace body, and further comprising:

[0007] Two hydraulic push rods are arranged in a circumferential array at the bottom of the fixed seat, and the bottom of the hydraulic push rod is fixedly connected with the inner wall of the furnace body.

[0008] The adjustable graphite heating assembly is arranged on the top of the fixing seat, and is suitable for the heating requirements of crucibles with different heights.

[0009] The auxiliary fixing and limiting assembly is arranged in the fixing seat, and is used for mounting and positioning the adjustable graphite heating assembly.

[0010] The adjusting assembly is arranged on the top of the fixing seat, and is used for mounting and limiting the adjustable graphite heating assembly.

[0011] Further description of the above technical solutions:

[0012] The adjustable graphite heating assembly comprises:

[0013] The fixing ring is fixedly connected in the furnace body by screws, and a plurality of limiting sliding grooves are arranged on the inner circumferential side of the fixing ring.

[0014] A plurality of heating blocks are arranged in a circumferential array in the fixing ring.

[0015] A plurality of limiting sliding blocks are arranged in a circumferential array on the outer circumferential side of the heating block, and the limiting sliding blocks are slidingly connected in the limiting sliding grooves.

[0016] A plurality of heat-conducting blocks are arranged in a circumferential array below the fixing ring, and the heat-conducting blocks are slidingly sealed in the heating blocks. The heating blocks are provided with clamping blocks on the bottom side, which are used for limiting the maximum position of the heat-conducting blocks.

[0017] Further description of the above technical solutions:

[0018] The auxiliary fixing and limiting assembly comprises:

[0019] Two first tapered blocks are slidingly connected on both sides of the fixing seat.

[0020] Two second tapered blocks are slidingly connected on both sides of the fixing seat.

[0021] Two connecting blocks are fixedly connected on the side of the second tapered block away from the first tapered block, and the connecting blocks are slidingly connected in the fixing seat.

[0022] Four first springs are symmetrically arranged on the bottom of the connecting block, and the bottom of the first spring is fixedly connected with the inner wall of the fixing seat.

[0023] A moving ring is arranged above the fixing seat, and the bottom of the moving ring is fixedly connected with the top of the two connecting blocks.

[0024] A driving unit is used for adjusting and controlling the moving position of the first tapered block.

[0025] Further description of the above technical solutions:

[0026] The auxiliary fixing and limiting assembly further comprises:

[0027] A connecting ring is rotationally connected inside the fixing base, and the top of the connecting ring extends to the outside of the fixing base, and a plurality of arc-shaped sliding grooves are arranged in the circumferential direction inside the connecting ring;

[0028] A fixing ring is fixedly connected to the inner circumferential side of the connecting ring, and a circular through hole is formed in the inside of the fixing ring on both sides;

[0029] Two fixing rods are respectively and slidably connected inside the circular through hole, and the bottom end of the fixing rod extends to the bottom of the fixing ring and is fixedly connected with a first roller;

[0030] Two second springs are respectively sleeved on the outer circumferential side of the fixing rod, and the second springs are fixedly connected with the top of the first roller and the bottom of the fixing ring on both sides;

[0031] A limiting ring is fixedly connected to the top end of the fixing rod, and the limiting ring is slidably connected inside the arc-shaped sliding groove through an arc-shaped sliding block, and the top of the limiting ring is tapered.

[0032] Further description of the above technical solution:

[0033] The auxiliary fixing and limiting assembly further comprises:

[0034] A circular ring is fixedly connected to the inner circumferential side of the connecting ring through a support frame, and a plurality of first through holes are arranged in the circumferential direction inside the circular ring;

[0035] A limiting rod is slidably connected inside the first through hole, and one end of the limiting rod extends to between the circular ring and the connecting ring and is fixedly connected with a second roller;

[0036] A plurality of limiting blocks are arranged in the circumferential direction inside the heat-conducting block, and a limiting clamping groove is formed in the inside of the limiting block, and the limiting rod is slidably connected inside the limiting clamping groove;

[0037] A third spring is sleeved on the outer circumferential side of the limiting rod, and the third spring is fixedly connected with the second roller and the outer wall of the circular ring on both sides.

[0038] Further description of the above technical solution:

[0039] The driving unit comprises:

[0040] A driving motor is fixedly connected inside the fixing base;

[0041] One end of a lead screw is fixedly connected with the output shaft of the driving motor;

[0042] A lead screw base is transmissionally connected to the outer circumferential side of the lead screw, and the top of the lead screw base is fixedly connected with the top of the first tapered block, and second through holes are formed in the inside of the lead screw base on both sides;

[0043] The limiting round rod is fixedly connected with the inner wall of the fixed seat at both ends, and is slidingly connected in the second through hole.

[0044] As a further description of the above technical solution:

[0045] The adjusting assembly comprises:

[0046] The connecting shaft is rotatably connected in the fixed seat;

[0047] The gear is arranged in the fixed seat, and is fixedly connected with the outer circumferential side of the connecting shaft;

[0048] The bevel gear unit is arranged above the gear, and is used for transmitting power on the lead screw to the gear;

[0049] The ring gear is meshingly connected with the outer circumferential side of the gear, and is fixedly connected with the inner bottom side of the connecting ring.

[0050] As a further description of the above technical solution:

[0051] The adjusting assembly further comprises:

[0052] The taper groove is arranged on the inner circumferential side of the limiting ring, and the depth of the taper groove is the same as the depth of the limiting clamping groove.

[0053] As a further description of the above technical solution:

[0054] The bevel gear unit comprises:

[0055] The first bevel gear is fixedly connected with one end of the lead screw through the rotating shaft;

[0056] The second bevel gear is meshingly connected on one side of the first bevel gear, and is fixedly connected with the outer circumferential side of the connecting shaft.

[0057] As a further description of the above technical solution:

[0058] The furnace cover is fixedly connected in the furnace body through the screw, and the furnace cover is communicated with the feeding port on one side of the top;

[0059] The inert gas inlet is communicated with the top of the furnace body;

[0060] The inert gas outlet is communicated with the bottom of the furnace body, and is used for cooperating with the inert gas inlet to ensure the inert environment in the furnace body.

[0061] As described above, due to the adoption of the above technical solution, the beneficial effects of the present application are:

[0062] 1. In this invention, an adjustable graphite heating assembly is used to insert and install the heating block and heat-conducting block along a limiting groove. The limiting groove limits the position of the limiting slider, heating block, and heat-conducting block. The furnace cover limits and fixes the top of the heating block, causing the hydraulic push rod to move the fixing seat upward, allowing the heat-conducting block to enter the interior of the heating block. This adjusts the height between the heating block and the heat-conducting block to suit the heating requirements of different crucible heights, thus ensuring that the equipment can meet different heating needs during use. It also effectively focuses the heat source, reduces energy loss, and significantly improves the applicability and energy efficiency of the equipment. During this process, the limiting ring drives the conical groove into the space between the two second rollers, allowing the second rollers to limit and fix the limiting block and heat-conducting block through the limiting rod, thereby ensuring the installation stability of the equipment during use and greatly improving the portability of the equipment.

[0063] 2. In this invention, the auxiliary fixing and limiting components enable the drive motor to rotate the lead screw and the rotating shaft. This causes the lead screw seat to move upward via the first cone block, the second cone block, the connecting block, the moving ring, the first roller, the fixing rod, and the limiting ring. This allows the second roller to drive the limiting rod into the limiting slot inside the limiting block, thereby fixing the heat-conducting block. This effectively ensures the installation and usage stability of the product and guarantees the reliability of the equipment during long-term operation.

[0064] 3. In this invention, through the set adjustment component, when a single heating block and heat-conducting block are damaged, the drive motor first drives the lead screw, rotating shaft, first bevel gear, second bevel gear, connecting shaft, gear, ring gear, connecting ring, limiting ring, and conical groove to rotate, rotating the conical groove to the second roller at the position relative to the damage. At this time, the force of the third spring will drive the second roller and the limiting rod to move away from the limiting block and the limiting slot. At this time, the single heating block and heat-conducting block can be removed for replacement. This equipment can accurately locate and automatically unlock the faulty module with simple operation, which is convenient for on-site replacement and greatly reduces maintenance costs. Attached Figure Description

[0065] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0066] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the furnace body in this invention;

[0067] Figure 3 This is a schematic diagram of the overall three-dimensional structure of the adjustable graphite heating assembly in this invention;

[0068] Figure 4 In this invention Figure 3 A magnified schematic diagram of the structure at point A;

[0069] Figure 5 is another perspective view of the adjustable graphite heating assembly in the present application;

[0070] Figure 6 is a partial enlarged view of B in the present application Figure 5

[0071] Figure 7 is a partial enlarged view of C in the present application Figure 5

[0072] Figure 8 is a partial view of the auxiliary fixing and limiting assembly in the present application;

[0073] Figure 9 is a partial enlarged view of D in the present application Figure 8

[0074] Legend:

[0075] 1, furnace body; 2, furnace cover; 3, adjustable graphite heating assembly; 301, fixing ring; 302, heating block; 303, limiting sliding block; 304, heat conducting block; 4, fixing seat; 5, hydraulic push rod; 6, auxiliary fixing and limiting assembly; 601, driving motor; 602, lead screw; 603, lead screw seat; 604, first taper block; 605, second taper block; 606, connecting block; 607, first spring; 608, moving ring; 609, first roller; 610, fixed rod; 611, second spring; 612, fixing ring; 613, limiting ring; 614, connecting ring; 615, second roller; 616, limiting rod; 617, third spring; 618, circular ring; 619, limiting block; 7, adjusting assembly; 701, gear; 702, bevel gear unit; 703, ring gear; 704, tapered groove; 705, connecting shaft. DETAILED DESCRIPTION

[0076] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0077] Please refer to Figures 1-9 The present application provides a technical solution: a heating assembly for a fused quartz furnace, comprising a furnace body 1, the furnace body 1 is internally provided with a fixing seat 4 on the bottom side, further comprising:

[0078] ​​​Two hydraulic push rods 5 are arranged in a circumferential array at the bottom of the fixed seat 4, and the bottom of the hydraulic push rod 5 is fixedly connected with the inner wall of the furnace body 1.

[0079] The adjustable graphite heating assembly 3 is arranged at the top of the fixed seat 4, and is suitable for the heating needs of the crucible of different heights.

[0080] The auxiliary fixing and limiting assembly 6 is arranged inside the fixed seat 4, and is used for installing and positioning the adjustable graphite heating assembly 3.

[0081] The adjusting assembly 7 is arranged at the top of the fixed seat 4, and is used for installing and limiting the adjustable graphite heating assembly 3.

[0082] The adjustable graphite heating assembly 3 comprises:

[0083] The fixed ring 301 is fixedly connected inside the furnace body 1 by screws, and a plurality of limiting sliding grooves are arranged in a circumferential array on the inner circumferential side of the fixed ring 301.

[0084] A plurality of heating blocks 302 are arranged in a circumferential array inside the fixed ring 301.

[0085] A plurality of limiting sliding blocks 303 are arranged in a circumferential array on the outer circumferential side of the heating block 302, and the limiting sliding block 303 is slidingly connected inside the limiting sliding groove.

[0086] A plurality of heat-conducting blocks 304 are arranged in a circumferential array below the fixed ring 301, and the heat-conducting block 304 is slidingly sealed inside the heating block 302. A clamping block is arranged on the inner bottom side of the heating block 302, and is used for limiting the maximum position of the heat-conducting block 304.

[0087] The furnace cover 2 is fixedly connected inside the furnace body 1 by screws, and the furnace cover 2 is communicated with the feeding port on one side of the top.

[0088] The inert gas inlet is communicated with the top of the furnace body 1.

[0089] The inert gas outlet is communicated with the bottom of the furnace body 1, and is used for cooperating with the inert gas inlet to ensure the inert environment inside the furnace body 1.

[0090] CUTTING EDGE:First of all, place the device in the right place, and place the crucible inside the heating block 302 and the heat conducting block 304, insert the heating block 302 and the heat conducting block 304 from the limiting sliding groove, and limit the use position of the limiting sliding block 303, the heating block 302 and the heat conducting block 304 through the limiting sliding groove. The furnace cover 2 will limit and fix the top of the heating block 302. At this time, drive the motor 601 to drive the lead screw 602 and the rotating shaft to rotate, so that the limiting ring 613 drives the conical groove 704 to enter between the two second rollers 615, so that the second roller 615 limits and fixes the limiting block 619 and the heat conducting block 304 through the limiting rod 616, thereby ensuring the installation stability of the device during use, greatly improving the portability of the device during use, and then the furnace cover 2 is fixed on the top of the furnace body 1 by screws.

[0091] The auxiliary fixing and limiting assembly 6 comprises:

[0092] Two first tapered blocks 604 are slidingly connected inside the fixed seat 4 on both sides;

[0093] Two second tapered blocks 605, whose inclined surfaces are in close contact with the first tapered blocks 604;

[0094] Two connecting blocks 606 are fixedly connected to the side of the second tapered block 605 away from the first tapered block 604, and the connecting block 606 is slidingly connected inside the fixed seat 4;

[0095] Four first springs 607 are symmetrically distributed at the bottom of the connecting block 606, and the bottom of the first spring 607 is fixedly connected with the inner wall of the fixed seat 4;

[0096] A moving ring 608 is arranged above the fixed seat 4, and the bottom of the moving ring 608 is fixedly connected with the top of the two connecting blocks 606;

[0097] A driving unit is used to adjust and control the moving position of the first tapered block 604;

[0098] A connecting ring 614 is rotatably connected inside the fixed seat 4, and the top of the connecting ring 614 extends to the outside of the fixed seat 4, and a plurality of arc-shaped sliding grooves are arranged in the circumferential direction inside the connecting ring 614;

[0099] A fixed ring 612 is fixedly connected to the inner circumferential side of the connecting ring 614, and circular through holes are formed in the inner sides of the fixed ring 612;

[0100] Two fixed rods 610 are slidingly connected inside the circular through holes, and the bottom ends of the fixed rods 610 extend to the bottom of the fixed ring 612 and are fixedly connected with the first rollers 609;

[0101] Two second springs 611 are respectively sleeved on the outer circumferential side of the fixed rod 610, and the two sides of the second spring 611 are respectively fixedly connected with the top of the first roller 609 and the bottom of the fixed ring 612;

[0102] The limiting ring 613 is fixedly connected to the top end of the fixed rod 610, and the limiting ring 613 is slidably connected in the arc-shaped sliding groove through an arc-shaped sliding block, and the top of the limiting ring 613 is tapered;

[0103] The circular ring 618 is fixedly connected to the inner circumferential side of the connecting ring 614 through a support frame, and a plurality of first through holes are arranged in the inner circumference of the circular ring 618;

[0104] The limiting rod 616 is slidably connected in the first through hole, and one end of the limiting rod 616 extends between the circular ring 618 and the connecting ring 614 and is fixedly connected with the second roller 615;

[0105] A plurality of limiting blocks 619 are circumferentially arranged in the heat-conducting block 304, and a limiting clamping groove is formed in the limiting block 619, and the limiting rod 616 is slidably connected in the limiting clamping groove;

[0106] The third spring 617 is sleeved on the outer circumferential side of the limiting rod 616, and the two sides of the third spring 617 are respectively fixedly connected with the second roller 615 and the outer wall of the circular ring 618;

[0107] The driving motor 601 is fixedly connected in the fixed seat 4;

[0108] The lead screw 602 is fixedly connected with the output shaft of the driving motor 601 at one end;

[0109] The lead screw seat 603 is drivingly connected on the outer circumferential side of the lead screw 602, and the top of the lead screw seat 603 is fixedly connected with the top of the first taper block 604, and the second through hole is formed in the inner side of the lead screw seat 603;

[0110] The limiting circular rod is fixedly connected with the inner wall of the fixed seat 4 at both ends, and is slidably connected in the second through hole.

[0111] ILLUSTRATIVE EMBODIMENT: The motor 601 drives the screw rod 602 and the rotating shaft to rotate, and the linkage effect between the screw rod 602 and the screw rod seat 603 is used to transmit power to the screw rod seat 603, so that the screw rod seat 603 drives the first taper block 604 to move. During the initial movement, the second taper block 605 is extruded, so that the second taper block 605 drives the connecting block 606 and the moving ring 608 to move. During the movement of the moving ring 608, the first roller 609 and the second spring 611 are extruded, so that the first roller 609 drives the fixed rod 610 and the limiting ring 613 to move upwards. During the upward movement of the limiting ring 613, the second roller 615 is extruded, so that the second roller 615 drives the limiting rod 616 to move, so that the limiting rod 616 enters the limiting clamping groove inside the limiting block 619, so as to install and fix the heat conducting block 304. During this process, the hydraulic push rod 5 drives the fixed seat 4 to move upwards, so that the heat conducting block 304 enters the heating block 302, so as to adjust the use height between the heating block 302 and the heat conducting block 304, so as to adapt to the heating needs of different crucible heights, thereby ensuring different heating needs of the equipment during use, and realizing the concentration of heat and avoiding excessive waste of heat.

[0112] The adjusting assembly 7 comprises:

[0113] The connecting shaft 705 is rotatably connected inside the fixed seat 4;

[0114] The gear 701 is arranged inside the fixed seat 4, and the gear 701 is fixedly connected to the outer circumferential side of the connecting shaft 705;

[0115] The bevel gear unit 702 is arranged above the gear 701 and is used to transmit power on the screw rod 602 to the gear 701;

[0116] The ring gear 703 is meshingly connected to the outer circumferential side of the gear 701, and the ring gear 703 is fixedly connected to the inner bottom side of the connecting ring 614;

[0117] The tapered groove 704 is arranged on the inner circumferential side of the limiting ring 613, and the depth of the tapered groove 704 is the same as the depth of the limiting clamping groove;

[0118] The first bevel gear is fixedly connected to one end of the screw rod 602 through the rotating shaft;

[0119] The second bevel gear is meshingly connected to one side of the first bevel gear, and the second bevel gear is fixedly connected to the outer circumferential side of the connecting shaft 705.

[0120] CUTTING BLOCK: When the single heating block 302 and the heat-conducting block 304 are damaged, the driving motor 601 is kept rotating the lead screw 602, which in turn rotates the first bevel gear, and the power is transmitted to the second bevel gear through the linkage effect between the first bevel gear and the second bevel gear, so that the second bevel gear rotates the connecting shaft 705, which in turn rotates the gear 701, and the power is transmitted to the ring gear 703 through the linkage effect between the gear 701 and the ring gear 703, so that the ring gear 703 rotates the connecting ring 614, which in turn rotates the limiting ring 613 and the conical groove 704 through the arc-shaped sliding groove and the arc-shaped sliding block, and the conical groove 704 is rotated to the second roller 615 at the relative position of the damage, and the force of the third spring 617 drives the second roller 615 and the limiting rod 616 to move, so that the limiting rod 616 moves away from the limiting block 619 and the limiting slot, and the single heating block 302 and the heat-conducting block 304 can be taken out for replacement, greatly reducing the maintenance cost.

[0121] WORKING PRINCIPLE: In use, first place the equipment in the appropriate position, and place the crucible inside the heating block 302 and the heat-conducting block 304, then fix the furnace cover 2 on the top of the furnace body 1 by screws, and start the driving motor 601 according to actual needs, which drives the lead screw 602 and the shaft to rotate, and the power is transmitted to the lead screw seat 603 through the linkage effect between the lead screw 602 and the lead screw seat 603, so that the lead screw seat 603 drives the first taper block 604 to move, and the second taper block 605 is extruded in the initial movement process, so that the second taper block 605 drives the connecting block 606 and the moving ring 608 to move, and the moving ring 608 extrudes the first roller 609 and the second spring 611 in the movement process, so that the first roller 609 drives the fixed rod 610 and the limiting ring 613 to move upwards, and the limiting ring 613 extrudes the second roller 615 in the upward movement process, so that the second roller 615 drives the limiting rod 616 to move, so that the limiting rod 616 enters the limiting slot in the limiting block 619, to install and fix the heat-conducting block 304, and in this process, the hydraulic push rod 5 drives the fixed seat 4 to move upwards, so that the heat-conducting block 304 enters the heating block 302, to adjust the use height between the heating block 302 and the heat-conducting block 304;

[0122] When the single heating block 302 and the heat conduction block 304 are damaged, the driving motor 601 is continuously driven to rotate the lead screw 602, the lead screw 602 drives the first bevel gear to rotate through the rotating shaft, the power is transmitted to the second bevel gear through the linkage effect between the first bevel gear and the second bevel gear, the second bevel gear drives the connecting shaft 705 to rotate, the connecting shaft 705 drives the gear 701 to rotate, then the power is transmitted to the ring gear 703 through the linkage effect between the gear 701 and the ring gear 703, the ring gear 703 drives the connecting ring 614 to rotate, the connecting ring 614 drives the limiting ring 613 and the conical groove 704 to rotate through the arc-shaped sliding groove and the arc-shaped sliding block, the conical groove 704 is rotated to the second roller 615 at the relative position of the damage, the force of the third spring 617 drives the second roller 615 and the limiting rod 616 to move, the limiting rod 616 moves away from the limiting block 619 and the limiting clamping groove, then the single heating block 302 and the heat conduction block 304 can be taken out, so that the single heating block 302 and the heat conduction block 304 can be replaced.

[0123] Then the replaced heating block 302 and the heat conduction block 304 are inserted from the limiting sliding groove, the limiting sliding block 303, the heating block 302 and the heat conduction block 304 are limited in the use position through the limiting sliding groove, the furnace cover 2 limits and fixes the top of the heating block 302, then the driving motor 601 drives the lead screw 602 and the rotating shaft to rotate, the limiting ring 613 drives the conical groove 704 to enter between the two second rollers 615, the second roller 615 limits and fixes the limiting block 619 and the heat conduction block 304 through the limiting rod 616.

[0124] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A heating assembly for a fused silica furnace, comprising a furnace body (1), wherein a fixing seat (4) is provided on the bottom side inside the furnace body (1), characterized in that, Also includes: Two hydraulic push rods (5) are arranged in a circular array at the bottom of the fixed base (4), and the bottom of the hydraulic push rods (5) is fixedly connected to the inner wall of the furnace body (1); An adjustable graphite heating assembly (3) is set on top of a fixed base (4) to make the adjustable graphite heating assembly (3) suitable for the heating needs of crucibles of different heights; An auxiliary fixing limit component (6) is set inside the fixing base (4) and is used to install and position the adjustable graphite heating component (3); An adjustment component (7) is set on top of the fixed base (4) and is used to limit the installation of the adjustable graphite heating component (3).

2. The heating assembly for a fused silica furnace according to claim 1, characterized in that, The adjustable graphite heating assembly (3) includes: The fixing ring (301) is fixedly connected to the inside of the furnace body (1) by screws, and the inner circumferential array of the fixing ring (301) has multiple limiting grooves; Multiple heating blocks (302) are arranged in a circumferential array inside the fixed ring (301); Multiple limiting sliders (303) are arranged in a circumferential array on the outer periphery of the heating block (302), and the limiting sliders (303) are slidably connected inside the limiting groove; Multiple heat-conducting blocks (304) are arranged in a circular array below the fixing ring (301), and the heat-conducting blocks (304) are slidably sealed inside the heating block (302). A locking block is provided on the bottom side inside the heating block (302) to limit the maximum position of the heat-conducting blocks (304).

3. The heating assembly for a fused silica furnace according to claim 2, characterized in that, The auxiliary fixing and limiting component (6) includes: Two first cone blocks (604) are slidably connected to the inside of the fixed base (4) on both sides; The two second cone blocks (605) have their inclined surfaces in contact with the first cone block (604); Two connecting blocks (606) are fixedly connected to the side of the second cone block (605) away from the first cone block (604), and the connecting blocks (606) are slidably connected inside the fixed base (4); Four first springs (607) are symmetrically distributed in pairs at the bottom of the connecting block (606), and the bottom of the first springs (607) is fixedly connected to the inner wall of the fixing seat (4); The movable ring (608) is set above the fixed base (4), and the bottom of the movable ring (608) is fixedly connected to the top of the two connecting blocks (606); The drive unit is used to adjust and control the movement position of the first cone block (604).

4. A heating assembly for a fused silica furnace according to claim 3, characterized in that, The auxiliary fixing and limiting component (6) also includes: The connecting ring (614) is rotatably connected inside the fixed base (4), and the top of the connecting ring (614) extends to the outside of the fixed base (4). Multiple arc-shaped grooves are distributed in a circular array inside the connecting ring (614). The fixing ring (612) is fixedly connected to the inner circumference of the connecting ring (614), and the fixing ring (612) has circular through holes on both sides inside; Two fixing rods (610) are slidably connected inside the circular through hole, and the bottom end of the fixing rod (610) extends to the bottom of the fixing ring (612) and is fixedly connected to the first roller (609); Two second springs (611) are respectively sleeved on the outer periphery of the fixed rod (610), and the two sides of the second springs (611) are respectively fixedly connected to the top of the first roller (609) and the bottom of the fixed ring (612); A limiting ring (613) is fixedly connected to the top of the fixed rod (610), and the limiting ring (613) is slidably connected to the inside of the arc-shaped groove through an arc-shaped slider. The top of the limiting ring (613) is set to be conical.

5. A heating assembly for a fused silica furnace according to claim 4, characterized in that, The auxiliary fixing and limiting component (6) also includes: The ring (618) is fixedly connected to the inner circumference of the connecting ring (614) by a support frame, and the ring (618) has a plurality of first through holes arranged in a circular array inside the ring; The limiting rod (616) is slidably connected inside the first through hole, and one end of the limiting rod (616) extends between the ring (618) and the connecting ring (614) and is fixedly connected to the second roller (615); Multiple limiting blocks (619) are arranged in a circular array inside the heat-conducting block (304), and limiting slots are opened inside the limiting blocks (619), and the limiting rod (616) is slidably connected inside the limiting slots; The third spring (617) is sleeved on the outer periphery of the limiting rod (616), and the two sides of the third spring (617) are fixedly connected to the outer wall of the second roller (615) and the ring (618) respectively.

6. A heating assembly for a fused silica furnace according to claim 5, characterized in that, The driving unit includes: The drive motor (601) is fixedly connected inside the fixed base (4); One end of the lead screw (602) is fixedly connected to the output shaft of the drive motor (601); The lead screw seat (603) is connected to the outer periphery of the lead screw (602), and the top of the lead screw seat (603) is fixedly connected to the top of the first cone block (604). The lead screw seat (603) has a second through hole on both sides inside. The limiting round rod is fixedly connected to the inner wall of the fixed seat (4) at both ends, and the limiting round rod is slidably connected inside the second through hole.

7. A heating assembly for a fused silica furnace according to claim 6, characterized in that, The adjustment component (7) includes: The connecting shaft (705) is rotatably connected inside the fixed base (4); The gear (701) is disposed inside the fixed base (4) and is fixedly connected to the outer periphery of the connecting shaft (705); A bevel gear unit (702) is disposed above the gear (701) and is used to transmit power from the lead screw (602) to the gear (701); The ring gear (703) is meshed with the outer circumference of the gear (701), and the ring gear (703) is fixedly connected to the bottom inside the connecting ring (614).

8. A heating assembly for a fused silica furnace according to claim 7, characterized in that, The adjustment component (7) also includes: A conical groove (704) is provided on the inner circumference of the limiting ring (613), and the depth of the conical groove (704) is the same as the depth of the limiting groove.

9. A heating assembly for a fused silica furnace according to claim 8, characterized in that, The bevel gear unit (702) includes: The first bevel gear is fixedly connected to one end of the lead screw (602) via a rotating shaft; The second bevel gear is meshed with one side of the first bevel gear, and the second bevel gear is fixedly connected to the outer circumference of the connecting shaft (705).

10. A heating assembly for a fused silica furnace according to claim 1, characterized in that, Also includes: The furnace cover (2) is fixed inside the furnace body (1) by screws, and the top side of the furnace cover (2) is connected to the feed port; An inert gas inlet is connected to the top of the furnace body (1); The inert gas outlet is connected to the bottom of the furnace body (1) and is used in conjunction with the inert gas inlet to ensure the inert environment inside the furnace body (1).

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