Bushing plate module and basalt fiber drawing process

Abstract

The invention discloses a bushing module and a basalt fiber drawing process, and relates to the technical field of fiber forming. The bushing plate module comprises a bushing plate structure; the bushing structure comprises a heat-resistant insulating ring, a storage shell and a forming vertical pipe, the smelting furnace inner cavity, the heat-resistant insulating ring inner cavity, the storage shell inner cavity and the forming vertical pipe inner cavity are communicated in sequence; the storage shell comprises a vertical cylinder and a first bottom plate; the top end of the outer side wall of the vertical cylinder is connected with a wiring end, the bottom end of the outer side wall of the vertical cylinder is connected with a wiring terminal, and the bottom end of the formed vertical pipe is connected with a wiring piece. According to the invention, the four wiring terminals arranged in four directions, the four wiring terminals arranged in opposite directions and the six wiring pieces arranged in opposite directions are arranged at different height positions of the bushing module, so that layered and staggered currents are formed, the temperature uniformity of the bushing module is improved, and the temperature uniformity of basalt melt in the bushing module is further improved.

Description

Technical Field

[0001] This invention relates to the field of fiber forming technology, specifically to a spinneret module and a basalt fiber drawing process. Background Technology

[0002] Basalt fiber is a newly emerging specialty fiber with excellent heat resistance, making it widely used in fire protection, aerospace, and other fields. Basalt fiber is produced by heating basalt ore in a furnace to a molten state, followed by drawing it into fibers through a spinneret.

[0003] In traditional techniques, the sprue needs to be energized to prevent the temperature of the sprue from dropping. However, the terminals used for energizing are usually arranged in a point-like manner, which can lead to uneven power supply and temperature distribution in the sprue. This can result in insufficient fluidity of the basalt melt at some sprue locations, causing the basalt fibers to break. Summary of the Invention

[0004] To overcome the problem of "uneven temperature of the sprue" in the above-mentioned background technology, the present invention provides a sprue module and a basalt fiber drawing process.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: The sprue module includes a sprue structure installed at the bottom opening of the furnace; the sprue structure includes a heat-resistant insulating ring connected to the bottom surface of the furnace, a storage shell connected to the bottom surface of the heat-resistant insulating ring, and a forming riser connected to the bottom surface of the storage shell; the furnace cavity, the heat-resistant insulating ring cavity, the storage shell cavity, and the forming riser cavity are sequentially connected.

[0006] As a further optimization of the present invention, the storage shell includes a vertical cylinder with a rectangular cross-section and a first bottom plate disposed at the bottom of the vertical cylinder; a terminal is connected to the top of the outer wall of the vertical cylinder, a terminal block is connected to the bottom of the outer wall of the vertical cylinder, and a connector is connected to the bottom of the molded vertical tube; the terminal, the terminal block and the connector are used to form a layered and staggered current within the leakage plate structure.

[0007] As a further optimization of the present invention, the terminal includes a first terminal connected to the left side wall of the vertical cylinder, a second terminal connected to the right side wall of the vertical cylinder, a third terminal connected to the rear side wall of the vertical cylinder, and a fourth terminal connected to the front side wall of the vertical cylinder; current can flow through the first terminal, the third terminal, the fourth terminal, and the second terminal in sequence.

[0008] As a further optimization of the present invention, the wiring terminal includes a first wiring terminal connected to the left end of the rear side wall of the vertical cylinder, a second wiring terminal connected to the right end of the rear side wall of the vertical cylinder, a third wiring terminal connected to the right end of the front side wall of the vertical cylinder, and a fourth wiring terminal connected to the left end of the front side wall of the vertical cylinder; current can flow through the third wiring terminal, the second wiring terminal, the fourth wiring terminal, and the first wiring terminal in sequence.

[0009] As a further optimization of the present invention, the wiring component includes a first wiring component connected to the left end of the rear side wall of the vertical cylinder, a second wiring component connected to the middle part of the rear side wall of the vertical cylinder, a third wiring component connected to the right end of the rear side wall of the vertical cylinder, a fourth wiring component connected to the right end of the front side wall of the vertical cylinder, a fifth wiring component connected to the middle part of the front side wall of the vertical cylinder, and a sixth wiring component connected to the left end of the front side wall of the vertical cylinder; current can flow sequentially through the first wiring component, the sixth wiring component, the second wiring component, the fifth wiring component, the third wiring component, and the fourth wiring component.

[0010] The basalt fiber drawing process involves using the aforementioned perforated module to draw basalt melt into fibers. The steps include: S1, heating basalt ore to a molten state in the furnace to obtain basalt melt; S2, the basalt melt flows out through the perforated module to obtain several basalt fibers arranged in a matrix; S3, spraying cooling airflow onto the basalt fibers located at the perforated module, the direction of the cooling airflow being parallel to the axis of the forming riser.

[0011] As a further optimization of the present invention, a vertically arranged blower module is used to spray the cooling airflow, and the blower module is located below the perforated plate module; a steering roller is provided between the perforated plate module and the blower module, and the steering roller is used to guide the vertically moving basalt fiber to lateral movement.

[0012] As a further optimization of the present invention, the basalt fiber includes a vertical part and a horizontal part; one end of the vertical part is connected to the spinneret module and the other end is pressed into the guide roller; one end of the horizontal part is pressed into the guide roller and the other end is wound into the take-up machine.

[0013] As a further optimization of the present invention, the guide rollers are provided in a plurality of V-shaped arrangements, and different guide rollers are used to guide the basalt fibers in different horizontal rows.

[0014] As a further optimization of the present invention, the blower module includes a blower duct and a blower for generating the cooling airflow; the top ends of the left and right side walls of the blower duct are respectively provided with upper extension plates for supporting the steering roller.

[0015] In summary, the present invention has at least one of the following advantages: (1) In the present invention, four terminals arranged in four directions, four terminals arranged in opposite directions, and six terminals arranged in opposite directions are set at different height positions of the sprue module to form a layered and staggered current, which is used to improve the temperature uniformity of the sprue module and thus improve the temperature uniformity of the basalt melt in the sprue module.

[0016] (2) A heat insulation cavity is provided between the wiring terminal and the wiring terminal, and an adjustment cavity is provided between the wiring terminal and the wiring component, so as to realize rapid and precise temperature control of the basalt melt closest to the forming riser (the adjustment cavity volume is small, so only a small amount of basalt melt needs to be temperature controlled, which has the technical advantage of rapid adjustment and avoids the problem of low adjustment efficiency caused by synchronous adjustment of a large amount of basalt melt).

[0017] (3) The guide roller is a variable diameter roller. The rotation speed of the variable diameter roller is adapted to the extraction speed of the basalt fiber, and the circumferential surface of the variable diameter roller is adapted to the variable flow rate of the cooling airflow. The variable thrust applied by the variable diameter roller to the basalt fiber is adapted to (compensated for) the variable impact force applied by the cooling airflow to the basalt fiber (specifically the horizontal part) to improve the stability of the tension force borne by the vertical part, reduce the defect of variable cross section formed at the top of the vertical part, and improve the product quality. Attached Figure Description

[0018] The present application will be further explained below with reference to the accompanying drawings: Figure 1 This is a front view of the vertical section of the furnace and spindle plate module structure. Figure 2 This is a front view of the vertical section of the perforated plate module structure. Figure 3 for Figure 2 Schematic diagram of section AA; Figure 4 for Figure 2 Schematic diagram of the BB section; Figure 5 for Figure 2 Schematic diagram of the C-section; Figure 6 A schematic diagram of the location of the bending defect and the right view of the structure; Figure 7 Right view diagram showing the status of the cooling airflow setting; Figure 8 This is a right-side sectional view of the location and structure of the blower module. Figure 9 This is a right-side view of the vertical section of the pipe assembly's location and structure. Figure 10 This is a top view of the cross section of the pipe assembly structure; Figure 11Right view schematic diagram of the cooling airflow impacting the horizontal section; Figure 12 A schematic diagram of a defect state where a variable cross-section is formed at the top of the vertical part; Figure 13 This is a right-side vertical section view of the position and structure of the variable diameter roller. Figure 14 This is a right-side vertical section view of the position and structure of the pressure sensor and the windward plate.

[0019] Explanation of reference numerals in the attached figures: In the picture, 1. Furnace; 2. Heat-resistant insulating ring; 3. Storage shell; 31. Vertical cylinder; 32. First bottom plate; 4. Forming risers; 5. Basalt fiber; 501. Bending defect; 51. Vertical part; 52. Horizontal part; 6. Steering roller; 61. Variable diameter roller; 7. Blower module; 70. Cooling airflow; 71. Air duct; 711. Air inlet; 712. Diagonal support leg; 72. Blower; 721. Fan blade; 722. First motor; 723. Cross bracket; 713. Upper extension plate; 714. Pipe assembly; 7141. First riser; 8. Pressure sensor; 81. Windshield; T, terminal; T1, first terminal; T2, second terminal; T3, third terminal; T4, fourth terminal; M, terminal block; M1, first terminal block; M2, second terminal block; M3, third terminal block; M4, fourth terminal block; D, connector; D1, first connector; D2, second connector; D3, third connector; D4, fourth connector; D5, fifth connector; D6, sixth connector. Detailed Implementation

[0020] Based on the above-described structural features of this application, the implementation methods of this application will be further described as follows: Reference Figures 1-2This embodiment provides a perforated plate module, including a perforated plate structure installed at the bottom opening of a furnace 1. Heating electrodes are provided on the inner wall of the furnace 1 to heat the basalt ore inside the furnace 1 to a molten state (i.e., basalt melt). The perforated plate structure includes a heat-resistant insulating ring 2, a storage shell 3, and a forming riser 4. The heat-resistant insulating ring 2 is made of refractory brick, and its top surface is fixedly connected to the bottom surface of the furnace 1 (e.g., using heat-resistant bolts made of platinum-rhodium alloy). The bottom surface of the heat-resistant insulating ring 2 is fixedly connected to the top surface of the storage shell 3 (e.g., using heat-resistant bolts made of platinum-rhodium alloy). The storage shell 3 has a shell-like structure that is circumferentially closed, open at the top, and sealed at the bottom. The bottom surface of the storage shell 3 is fixedly connected to the top surface of the forming riser 4 (e.g., through an integral connection). Both the top and bottom ends of the forming riser 4 are open, and the cross-section of the forming riser 4 is circular. If the inner cavity of furnace 1, the inner cavity of heat-resistant insulating ring 2, the inner cavity of storage shell 3, and the inner cavity of forming riser 4 are connected in sequence, the molten basalt melt can flow through the inner cavity of heat-resistant insulating ring 2, storage shell 3, and forming riser 4 in sequence, thus becoming a filamentous structure.

[0021] Reference Figure 1 and Figure 2 The storage shell 3 includes a rectangular vertical cylinder 31 and a first bottom plate 32 disposed at the bottom of the vertical cylinder 31; the vertical cylinder 31 and the first bottom plate 32 are integrally fixedly connected.

[0022] Reference Figures 2-5 The top of the outer wall of the vertical cylinder 31 is connected to a terminal T (e.g., via an integrated fixing connection, a welded fixing connection, or a heat-resistant bolt made of platinum-rhodium alloy). The bottom of the outer wall of the vertical cylinder 31 is connected to a terminal M (e.g., via an integrated fixing connection, a welded fixing connection, or a heat-resistant bolt made of platinum-rhodium alloy). The bottom of the formed riser 4 is connected to a connector D (e.g., via an integrated fixing connection, a welded fixing connection, or a heat-resistant bolt made of platinum-rhodium alloy). The terminal T, terminal M, and connector D are used to form layered and staggered currents within the perforated structure, which improves the heating / insulation uniformity of the basalt melt by the perforated module and avoids localized overheating / underheating problems.

[0023] Reference Figure 1 and Figure 2 The sluice plate module is equipped with an insulation cavity and a control cavity. The insulation cavity is used to keep the basalt melt warm, and the control cavity is used to precisely control the temperature of the basalt melt (the control cavity has a small volume, so only a small amount of basalt melt needs to be controlled, which has the technical advantage of rapid control and avoids the problem of low control efficiency caused by simultaneous control of a large amount of basalt melt).

[0024] Reference Figure 1 and Figure 2 The insulation chamber, i.e. the inner cavity of the storage shell 3, is used to control the temperature of the basalt melt inside the insulation chamber by the current input through the terminal T and terminal M; the regulating chamber, i.e. the inner cavity of the forming riser 4, is used to control the temperature of the basalt melt inside the regulating chamber by the current input through the terminal M and terminal D.

[0025] The first base plate 32 is provided with a leakage hole that is adapted to the forming riser 4, and the heat preservation cavity and the control cavity are connected through the leakage hole.

[0026] Reference Figure 3 The terminal T includes a first terminal T1 connected to the left side wall of the vertical cylinder 31, a second terminal T2 connected to the right side wall of the vertical cylinder 31, a third terminal T3 connected to the rear side wall of the vertical cylinder 31, and a fourth terminal T4 connected to the front side wall of the vertical cylinder 31; current can flow sequentially through the first terminal T1, the third terminal T3, the fourth terminal T4, and the second terminal T2. The third terminal T3 and the fourth terminal T4 are connected by a wire.

[0027] Reference Figure 4 The terminal block M includes a first terminal block M1 connected to the left end of the rear side wall of the vertical cylinder 31, a second terminal block M2 connected to the right end of the rear side wall of the vertical cylinder 31, a third terminal block M3 connected to the right end of the front side wall of the vertical cylinder 31, and a fourth terminal block M4 connected to the left end of the front side wall of the vertical cylinder 31; current can flow sequentially through the third terminal block M3, the second terminal block M2, the fourth terminal block M4, and the first terminal block M1. The fourth terminal block M4 and the second terminal block M2 are connected by a wire.

[0028] Reference Figure 5 The wiring component D includes a first wiring component D1 connected to the left end of the rear side wall of the vertical cylinder 31, a second wiring component D2 connected to the middle of the rear side wall of the vertical cylinder 31, a third wiring component D3 connected to the right end of the rear side wall of the vertical cylinder 31, a fourth wiring component D4 connected to the right end of the front side wall of the vertical cylinder 31, a fifth wiring component D5 connected to the middle of the front side wall of the vertical cylinder 31, and a sixth wiring component D6 connected to the left end of the front side wall of the vertical cylinder 31. Current can flow sequentially through the first wiring component D1, the sixth wiring component D6, the second wiring component D2, the fifth wiring component D5, the third wiring component D3, and the fourth wiring component D4. The sixth wiring component D6 and the second wiring component D2 are connected by a wire, and the fifth wiring component D5 and the third wiring component D3 are connected by a wire.

[0029] Reference Figures 3-5 The current between terminals T, between terminals M, and between terminals D are staggered to improve the uniformity of heating / insulating the basalt melt, and ultimately improve the quality of the finished basalt fiber product.

[0030] Reference Figure 3 The formed risers 4 are provided in a matrix arrangement on the bottom surface of the first base plate 32. There are three groups of formed risers 4, with the first group of formed risers 4 located at the left end of the first base plate 32, the second group of formed risers 4 located in the middle of the first base plate 32, and the third group of formed risers 4 located at the right end of the first base plate 32. Each group of formed risers 4 is provided in a matrix arrangement.

[0031] Reference Figure 1 The basalt fiber drawing process involves using a spinneret module to draw basalt melt into fibers. The steps include: S1. Basalt ore is fed into the inner cavity of furnace 1 through the feeding port at the top of furnace 1, and then the feeding port is closed (the feeding port is equipped with a cover plate that can be opened and closed); then furnace 1 heats the basalt ore to a molten state to obtain basalt melt.

[0032] S2. The basalt melt flows out through the perforated plate module (specifically, it is pulled out by the take-up machine) to obtain several basalt fibers 5 arranged in a matrix.

[0033] S3. A cooling airflow 70 is sprayed onto the basalt fiber 5 located at the position of the sprue module. The direction of the cooling airflow 70 is parallel to the axis of the forming riser 4. This is used to reduce the radial force exerted by the cooling airflow 70 on the basalt fiber 5 (near the end of the forming riser 4) and improve the straightness of the basalt fiber 5.

[0034] Reference Figure 6 Since the basalt fiber 5 just extracted from the forming riser 4 has a high temperature (and is relatively soft), it needs to be cooled down quickly to achieve rapid shaping. In traditional technology, a cooling airflow 70 (usually air with a temperature not exceeding 50 degrees Celsius) is used to blow the basalt fiber 5 near the end of the forming riser 4 (to cool and shape it). However, the basalt fiber 5 needs to be routed along the axis of the forming riser 4 (i.e., the take-up machine is located directly below the forming riser 4), so a fan can only be installed beside the forming riser 4. This causes the cooling airflow 70 to flow radially along the basalt fiber 5, meaning the cooling airflow 70 will apply radial force to the basalt fiber 5 (near the end of the forming riser 4). Since the basalt fiber 5 is relatively soft, it will bend irregularly once subjected to radial force, resulting in a bending defect 501 on the final basalt fiber 5 product. (Refer to...) Figure 7 To avoid such problems, the present invention sets the cooling airflow 70 in the direction along the axis of the forming riser 4, in order to reduce the radial force exerted by the cooling airflow 70 on the basalt fiber 5 (near the end of the forming riser 4) and improve the straightness of the basalt fiber 5.

[0035] Reference Figure 8In step S3, a vertically arranged blower module 7 sprays cooling airflow 70. The blower module 7 is located below the perforated plate module. A steering roller 6 is provided between the perforated plate module and the blower module 7. The steering roller 6 is used to guide the vertically moving basalt fiber 5 to move laterally, thereby providing a space for the blower module 7 and avoiding interference between the blower module 7 and the basalt fiber 5.

[0036] Reference Figure 8 The basalt fiber 5 includes a vertical section 51 and a horizontal section 52, which are integrally fixedly connected. The vertical section 51 is vertically positioned, and the horizontal section 52 is horizontally positioned. One end of the vertical section 51 is connected to the spinneret module, and the other end is pressed against the guide roller 6. One end of the horizontal section 52 is pressed against the guide roller 6, and the other end is wound onto the take-up machine. The guide roller 6 is provided with annular grooves, in which the basalt fiber 5 can be fitted and locked. Several annular grooves are provided and arranged along the axial direction of the guide roller 6. Basalt fibers 5 in different columns are fitted and locked into different annular grooves to avoid entanglement.

[0037] Reference Figure 8 The guide rollers 6 are arranged in a V-shape. Different guide rollers 6 are used to guide the basalt fibers 5 in different horizontal rows. Specifically, the outer row (i.e., the first and last row) of basalt fibers 5 are guided first, and then the inner row (i.e., the middle row) of basalt fibers 5 are guided, so as to avoid the basalt fibers 5 from getting tangled.

[0038] Reference Figure 8 The blower module 7 includes a vertically mounted air duct 71 and a blower 72 for generating cooling airflow 70. The air duct 71 has a top-opening structure, with the top opening of the air duct 71 pointing towards the vertical part 51. This is used to blow the cooling airflow 70 onto the surface of the vertical part 51 and allow it to flow along the axial direction of the vertical part 51, thereby reducing the radial force exerted by the cooling airflow 70 on the vertical part 51 and reducing the problem of bending defects 501 forming at the position of the vertical part 51.

[0039] Reference Figure 8 A blower 72 is disposed inside a duct 71 and includes a fan blade 721, a first motor 722, and a cross bracket 723. The cross bracket 723 is horizontally positioned in the middle of the duct 71's inner cavity; its outer end is fixedly connected to the inner wall of the duct 71 (e.g., by bolts), and its middle part is fixedly connected to the housing of the first motor 722 (e.g., by bolts); the first motor 722 is vertically positioned; its first output shaft is coaxially arranged with the fan blade 721 and fixedly connected by bolts; the first motor 722 drives the fan blade 721 to rotate, thereby forming a cooling airflow 70. An air inlet 711 is provided at the bottom of the blower 72's side wall for air compensation within the duct 71.

[0040] Reference Figure 8The bottom of the outer wall of the air duct 71 is provided with a diagonal support leg 712. Several diagonal support legs 712 are provided and arranged around the circumference of the air duct 71 to support the blower module 7 and prevent the blower module 7 from tipping over.

[0041] Reference Figure 8 and Figure 9 The cross-section of the air duct 71 is rectangular and adapted to the straight sections arranged in a matrix to improve the uniformity of the flow velocity of the cooling airflow 70 at different locations of the straight sections.

[0042] Reference Figure 8 and Figure 9 The top of the left and right side walls of the ventilation duct 71 are respectively provided with upper extension plates 713 for supporting the steering roller 6. The steering roller 6 is arranged between the two upper extension plates 713; the end of the steering roller 6 is rotatably connected to the upper extension plates 713 through bearings and a rotating shaft.

[0043] Because the cooling airflow 70 generated by the rotation of the fan blades 721 is spiral-shaped, and this spiral cooling airflow 70 still exerts a radial force on the vertical part 51, it causes bending defects 501 in the basalt fiber 5. To avoid this problem, refer to... Figure 9 and Figure 10 A pipe assembly 714 is fixedly installed in the middle of the inner cavity of the air duct 71 (e.g., by welding). The pipe assembly 714 is located between the steering roller 6 and the fan blade 721. The pipe assembly 714 includes several vertically arranged first risers 7141. The first risers 7141 have a top-and-bottom open structure. The several first risers 7141 are arranged in a matrix. This improves the straightness of the spiral airflow after passing through the pipe assembly 714, thereby reducing the radial force exerted by the cooling airflow 70 on the vertical part 51, and further reducing the degree of bending of the bending defect 501, thus improving product quality. Adjacent first risers 7141 are fixedly connected (e.g., by welding).

[0044] To achieve the vertical arrangement of this invention, the blower module 7 is fixedly mounted on the upper surface of the first floor slab (e.g., fixedly connected by expansion bolts), and the furnace 1 is fixedly mounted on the upper surface of the second floor slab (e.g., fixedly connected by expansion bolts). The second floor slab has a first opening for accommodating the sprue module, through which the basalt fiber 5 can vertically pass. The take-up machine is fixedly mounted in the middle of the first floor wall (e.g., the base of the take-up machine is fixedly connected to the first floor wall by bolts). A second motor is installed inside the base of the take-up machine, and the output shaft of the second motor is coaxially arranged with and fixedly connected to the take-up roller (e.g., fixedly connected by bolts). The end of the horizontal part 52 away from the vertical part 51 is wound around the take-up roller. The second motor is used to drive the take-up roller to rotate, thereby realizing the winding of the basalt fiber 5, and at the same time applying tension to the top of the vertical part 51 (i.e., the end near the sprue module), thereby realizing the drawing operation.

[0045] Reference Figure 9 and Figure 11 The spiral cooling airflow 70 generated by the fan blade 721 has a non-constant velocity. While its straightness improves after passing through the tube assembly 714, the problem of non-constant velocity remains unresolved. Therefore, the non-constant velocity cooling airflow 70, after impacting the bottom surface of the horizontal section 52, applies an non-constant (vertical) tension force to the vertical section 51, causing the horizontal section 52 to bounce and creating a defect at the top of the vertical section 51 with an uneven diameter (i.e., variable cross-section). Figure 12 This leads to a defect in the final basalt fiber product (5) where the diameter is not constant (i.e., variable cross-section), resulting in a decrease in product quality. To address this issue, refer to... Figure 13 In this invention, the steering roller 6 is a variable diameter roller 61; the variable diameter roller 61 can apply a variable thrust to the basalt fiber 5, thereby adjusting the tension force borne by the vertical part 51; the rotation speed of the variable diameter roller 61 is adapted to the extraction (i.e., movement) speed of the basalt fiber 5, and the circumferential surface of the variable diameter roller 61 is adapted to the variable flow rate of the cooling airflow 70, thereby compensating for the non-constant tension force borne by the vertical part 51 and reducing the defect of forming a variable cross section at the top of the vertical part 51.

[0046] The variable thrust applied by the variable diameter roller 61 to the basalt fiber 5 is adapted (compensated) by the variable impact force applied by the cooling airflow 70 to the basalt fiber 5 (specifically the horizontal part 52) ​​to improve the stability of the tension force borne by the vertical part 51, reduce the defect of variable cross section formed at the top of the vertical part 51, and improve product quality.

[0047] Reference Figure 14 Before designing and manufacturing the variable diameter roller 61, the variable thrust impact force from the cooling airflow 70 on the basalt fiber 5 is first assessed: a pressure sensor 8 is installed at the midpoint between the side edges of the variable diameter roller 61 and the upper extension plate 713 (the fixed end of the pressure sensor 8 is detachably connected to the upper extension plate 713 by bolts). A horizontally placed wind-facing plate 81 (e.g., fixedly connected by bolts) is fixedly connected to the trigger end at the bottom of the pressure sensor 8. The area of ​​the bottom surface of the wind-facing plate 81 is equal to (at this position) the area of ​​the same row (and located in the air duct 7). The pressure sensor 8 is used to collect the variable impact force information of the cooling airflow 70 borne by the windward plate 81 (i.e., the horizontal part 52) ​​within the vertical projection range. This information is used to collect the variable tension force information (from the cooling airflow 70) borne by the vertical part 51. Based on this variable tension force information, the user can determine its variation pattern and design and manufacture a matching variable diameter roller 61 (and the variable diameter wheel circumference on the variable diameter roller 61). After the test is completed, the pressure sensor 8 and the windward plate 81 are removed.

[0048] A third motor for driving the variable diameter roller 61 to rotate is installed on the outer wall of the upper extension plate 713. The output shaft of the third motor (after passing through the horizontal insertion hole on the upper extension plate 713) is inserted and fixed at the rotation center position of the variable diameter roller 61. The housing of the third motor is fixedly connected to the upper extension plate 713 by bolts. The third motor is used to drive the variable diameter roller 61 to rotate and control the speed of the variable diameter roller 61.

[0049] The invention also includes an electrical cabinet, which is fixedly installed on the top surface of the second floor slab with bolts. The first terminal T1, the second terminal T2, the first terminal M1, the third terminal M3, the first connector D1, the fourth connector D4, the first motor 722, the second motor, the third motor, and the pressure sensor are respectively connected to the electrical cabinet via wires and signal lines. The electrical cabinet is connected to an external power supply and an external controller (such as a computer or a PLC programmable logic controller) via wires and signal lines. The external controller controls the start-stop, power supply, and other working states of the first terminal T1, the second terminal T2, the first terminal M1, the third terminal M3, the first connector D1, the fourth connector D4, the first motor 722, the second motor, the third motor, and the pressure sensor through the electrical cabinet.

[0050] The first motor 722, the second motor, and the third motor are all controllable motors (such as servo motors or stepper motors). By inputting electrical signals to the controllable motors through an external controller, the speed, number of revolutions per rotation, angle of rotation per rotation, and start / stop timing of the controllable motors can be controlled.

[0051] Both the storage shell 3 and the molded riser 4 are made of platinum-rhodium alloy.

[0052] This invention has a simple structure and reliable function. It sets four terminals T in four directions, four terminals M in opposite directions, and six terminals D in opposite directions at different height positions of the sprue module, thereby forming a layered and staggered current to improve the temperature uniformity of the sprue module, and thus improve the temperature uniformity of the basalt melt inside the sprue module.

[0053] A heat-insulating cavity is provided between terminal T and terminal M, and an adjustment cavity is provided between terminal M and terminal D, thereby enabling rapid and precise temperature control of the basalt melt at the position closest to the forming riser 4.

[0054] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0055] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] In summary, for those skilled in the art, any changes, modifications, substitutions, or variations made to this invention based on the guidance of this invention, without departing from the principles and spirit of this invention, still fall within the protection scope of this invention.

Claims

1. A stencil module, characterized in that: The structure includes a perforated plate structure installed at the bottom opening of the furnace (1); the perforated plate structure includes a heat-resistant insulating ring (2) connected to the bottom surface of the furnace (1), a storage shell (3) connected to the bottom surface of the heat-resistant insulating ring (2), and a forming riser (4) connected to the bottom surface of the storage shell (3); the inner cavity of the furnace (1), the inner cavity of the heat-resistant insulating ring (2), the inner cavity of the storage shell (3), and the inner cavity of the forming riser (4) are sequentially connected.

2. The stencil module according to claim 1, characterized in that: The storage shell (3) includes a rectangular cross-section vertical tube (31) and a first bottom plate (32) disposed at the bottom of the vertical tube (31); a terminal (T) is connected to the top of the outer wall of the vertical tube (31), a terminal (M) is connected to the bottom of the outer wall of the vertical tube (31), and a connector (D) is connected to the bottom of the molded vertical tube (4); the terminal (T), the terminal (M) and the connector (D) are used to form layered and staggered currents within the sprue structure.

3. The stencil module according to claim 2, characterized in that: The terminal (T) includes a first terminal (T1) connected to the left side wall of the vertical cylinder (31), a second terminal (T2) connected to the right side wall of the vertical cylinder (31), a third terminal (T3) connected to the rear side wall of the vertical cylinder (31), and a fourth terminal (T4) connected to the front side wall of the vertical cylinder (31); the current can flow through the first terminal (T1), the third terminal (T3), the fourth terminal (T4), and the second terminal (T2) in sequence.

4. The stencil module according to claim 3, characterized in that: The terminal block (M) includes a first terminal block (M1) connected to the left end of the rear side wall of the vertical cylinder (31), a second terminal block (M2) connected to the right end of the rear side wall of the vertical cylinder (31), a third terminal block (M3) connected to the right end of the front side wall of the vertical cylinder (31), and a fourth terminal block (M4) connected to the left end of the front side wall of the vertical cylinder (31); current can flow through the third terminal block (M3), the second terminal block (M2), the fourth terminal block (M4), and the first terminal block (M1) in sequence.

5. The stencil module according to claim 4, characterized in that: The connector (D) includes a first connector (D1) connected to the left end of the rear side wall of the vertical cylinder (31), a second connector (D2) connected to the middle part of the rear side wall of the vertical cylinder (31), a third connector (D3) connected to the right end of the rear side wall of the vertical cylinder (31), a fourth connector (D4) connected to the right end of the front side wall of the vertical cylinder (31), a fifth connector (D5) connected to the middle part of the front side wall of the vertical cylinder (31), and a sixth connector (D6) connected to the left end of the front side wall of the vertical cylinder (31); the current can flow sequentially through the first connector (D1), the sixth connector (D6), the second connector (D2), the fifth connector (D5), the third connector (D3), and the fourth connector (D4).

6. Basalt fiber drawing process, characterized in that, The process of drawing basalt melt using the perforated plate module described in any one of claims 1-5 includes the following steps: S1. The furnace (1) heats the basalt ore to a molten state to obtain basalt melt; S2. The basalt melt flows out through the perforated plate module to obtain a number of basalt fibers arranged in a matrix (5). S3. A cooling airflow (70) is sprayed onto the basalt fiber (5) located at the position of the perforated plate module. The direction of the cooling airflow (70) is parallel to the axial direction of the forming riser (4).

7. The basalt fiber drawing process according to claim 6, characterized in that: The cooling airflow (70) is sprayed by a vertically arranged blower module (7), which is located below the perforated plate module; a guide roller (6) is provided between the perforated plate module and the blower module (7), which is used to guide the vertically moving basalt fiber (5) to move laterally.

8. The basalt fiber drawing process according to claim 7, characterized in that: The basalt fiber (5) includes a vertical part (51) and a horizontal part (52); one end of the vertical part (51) is connected to the sprue module and the other end is pressed to the guide roller (6); one end of the horizontal part (52) is pressed to the guide roller (6) and the other end is wound to the take-up machine.

9. The basalt fiber drawing process according to claim 8, characterized in that: The steering rollers (6) are provided in a plurality of V-shaped arrangement, and different steering rollers (6) are used to guide the basalt fibers (5) in different horizontal rows.

10. The basalt fiber drawing process according to claim 9, characterized in that: The blower module (7) includes a blower duct (71) and a blower (72) for generating the cooling airflow (70); the top of the left and right side walls of the blower duct (71) are respectively provided with upper extension plates (713) for supporting the steering roller (6).

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