A continuous sintering furnace for heat treatment of glass fiber

Abstract

The present invention relates to the technical field of glass fiber heat treatment, and in particular to a continuous sintering furnace for glass fiber heat treatment, comprising a base, a transition furnace, a conveying mechanism and a placement plate, wherein there are four transition furnaces, which are transversely fixedly installed on the top of the base, and a heating furnace is fixedly connected between every two transition furnaces, a heating plate is fixedly installed on the inner wall of the heating furnace, the conveying mechanism comprises a mesh belt conveyor, and a dispersion mechanism is installed inside the placement plate. The present invention utilizes the joint action of the protrusions and springs in the dispersion mechanism to make the top block move up and down continuously, and the short glass fibers accumulated on the top of the placement plate are quickly and effectively dispersed, and the heat can be more evenly conducted to each short glass fiber, ensuring the overall heating uniformity, thereby improving the production efficiency, and the transition furnace can provide a gradually heated transition area to avoid the breakage, deformation or damage of the glass fiber caused by drastic temperature changes.

Description

Technical Field

[0001] The invention relates to the technical field of glass fiber heat treatment, in particular to a continuous sintering furnace for glass fiber heat treatment. Background Art

[0002] The sintering furnace for glass fiber heat treatment is a high-temperature furnace, which is mainly used to heat treat glass fiber to achieve the required physical and chemical properties. This sintering furnace needs to have the characteristics of high temperature performance, uniform heating, high efficiency and energy saving, and safety and reliability. It is of great significance to ensure the heat treatment quality of glass fiber, improve energy utilization efficiency and ensure production safety.

[0003] After searching, a Chinese patent with patent publication number CN110057193A discloses a continuous integrated sintering furnace. At least four refractory walls are arranged in a straight line inside the furnace body. All refractory walls are used to divide the internal space of the furnace body into a low-temperature degreasing chamber, a sintering chamber and a cooling chamber. Each refractory wall is provided with a sealer on the side away from the front end of the furnace body. A step-by-step conveying device is also provided in the furnace body. The step-by-step conveying device includes a conveyor belt. The inner surface of the conveyor belt is provided with a plurality of hollow refractory bricks, thereby realizing the sintering operation of larger workpieces and ensuring the sealing during work.

[0004] Although the above patent has certain beneficial effects, during the heat treatment of glass fibers, the glass fibers need to go through three steps of preheating, heating and cooling. The heating temperatures of different steps are different. Directly transporting the glass fibers from the low-temperature area to the high-temperature area will cause rapid generation of temperature stress, thereby causing the glass fibers to break, deform or be damaged, affecting their performance and quality, resulting in poor heat treatment effect of the glass fibers. At the same time, the glass fibers accumulate inside the sintering box, which can easily lead to uneven heating of the glass fibers, thereby affecting the efficiency of their heat treatment. Summary of the invention

[0005] The purpose of the present invention is to solve the problem of poor heat treatment effect of glass fibers in the prior art, and to propose a continuous sintering furnace for heat treatment of glass fibers.

[0006] In order to achieve the above object, the present invention adopts the following technical scheme: a continuous sintering furnace for heat treatment of glass fiber, comprising a base, and also comprising:

[0007] A transition furnace, wherein there are four transition furnaces, the four transition furnaces are transversely fixedly installed on the top of the base, and a heating furnace is fixedly connected between every two transition furnaces, the bottom of the heating furnace is fixedly connected to the base, a heating plate is fixedly installed on the inner wall of the heating furnace, and the top of the heating furnace is fixedly connected to an atmosphere pipe;

[0008] The transition furnace is provided with notched grooves at both ends, the notched grooves are slidably connected with baffles, an electric push rod is fixedly connected between the baffle and the transition furnace, the electric push rod is used to drive the baffle to move up and down along the notched groove, and the baffle is used to seal the transition furnace and the heating furnace;

[0009] A conveying mechanism, the conveying mechanism comprising a mesh belt conveyor, the mesh belt conveyor being installed on the top of the base through a driving assembly, the mesh belt conveyor being used to convey the glass fiber to the transition furnace and the heating furnace;

[0010] A placement plate, the placement plate is fixedly mounted on the outer wall of the mesh belt conveyor through a connecting block, the placement plate is used to place glass fibers, a dispersion mechanism is installed inside the placement plate, and the dispersion mechanism is used to disperse the glass fibers on the placement plate;

[0011] The dispersion mechanism includes a top block, a connecting groove is opened on the top of the placement plate, the top block is slidably connected to the connecting groove, and a spring is fixedly connected between the top block and the connecting groove, the spring is used to pull the top block to move downward, and a rotating assembly is installed under the top block, and the rotating assembly is used to drive the top block to move upward.

[0012] Preferably, the side walls of the transition furnace at both ends of the top of the base are fixedly connected with fixed blocks, the driving assembly includes two motors, the two motors are symmetrically distributed at both ends of the mesh belt conveyor, and are fixedly installed inside the fixed blocks, the output end of the motor is fixedly connected with a transport roller, the interior of the heating furnace is rotatably connected with the same transport roller, and the mesh belt conveyor is sleeved on the transport roller connected to the motor and the transport roller connected to the heating furnace.

[0013] Preferably, it also includes a cleaning mechanism, which includes a waste collection box fixedly mounted on the side wall of the base, and a V-shaped cleaning brush fixedly mounted on the bottom of the fixed block, the V-shaped cleaning brush is located above the waste collection box and below the placement plate, and the V-shaped cleaning brush is used to clean residues on the surface of the placement plate.

[0014] Preferably, the rotating components are in two groups and are symmetrically distributed inside the placement plate. The rotating components include a plurality of rotating rods, which are rotatably connected inside the placement plate. A cam is fixedly installed on the side wall of the rotating rod. A rotating groove is opened inside the placement plate. The cam is located inside the rotating groove. The rotating groove is located below the connecting groove, and the bottom of the top block extends into the rotating groove. The cam is used to lift the top block. A transmission mechanism is installed in the placement plate, and the transmission mechanism is used to drive the rotating rod to rotate.

[0015] Preferably, the transmission mechanism is in two groups and is symmetrically distributed at both ends of the two groups of rotating components. The transmission mechanism includes a rack, a gear, a worm wheel and a worm. The rack is fixedly mounted on the side wall of the heating furnace, the gear is rotatably connected to the side wall of the placement plate, the gear is meshingly connected to the rack, the worm wheel is rotatably connected to the inside of the placement plate, and the worm wheel is meshingly connected to the gear, the worm is fixedly mounted on the side wall of the rotating rod, and the worm wheel is meshingly connected to the worm.

[0016] Preferably, two transmission belts are installed inside the placement plate, the two transmission belts are respectively connected to two groups of rotating components, and the transmission belts are sleeved on the outer walls of multiple rotating rods in the rotating components, and the transmission belts are used to drive the multiple rotating rods to rotate simultaneously.

[0017] Preferably, a high-temperature airbag is fixedly installed on the top of the placement plate, and a gas transport pipe is fixedly installed inside the placement plate. The gas transport pipe is located below the high-temperature airbag and is connected to the bottom of the high-temperature airbag.

[0018] Preferably, two gas cavities are opened inside the heating furnace, and the two gas cavities are symmetrically distributed on both sides of the placement plate. A gas groove is opened through the side of the gas cavity close to the placement plate, and the pipe openings at both ends of the gas transport pipe extend out of the placement plate and are aligned with the pipe openings of the gas groove. The gas groove is used to introduce gas into the gas transport pipe.

[0019] Preferably, the two gas cavities are respectively fixedly connected with an air guide pipe and an air outlet pipe, the air guide pipe is used to introduce gas into the corresponding gas cavity, and the air outlet pipe is used to discharge the gas in the corresponding gas cavity.

[0020] Preferably, a control valve is fixedly installed at the pipe opening of the air guide pipe, and a control valve for controlling ventilation of the internal gas tank is fixedly installed in the gas cavity connected to the air outlet pipe.

[0021] Compared with the prior art, the advantages of the present invention are:

[0022] 1. The present invention installs a placement plate, a top block, a cam and other devices, and utilizes the joint action of a rack, a worm gear and a gear, so that when the placement plate enters the heating furnace, multiple rotating rods in the placement plate rotate simultaneously under the action of a transmission belt, so that multiple top blocks continuously move up and down under the joint action of a cam and a spring, so that the glass short fibers accumulated on the top of the placement plate are quickly and effectively dispersed, and heat can be more evenly conducted to each glass short fiber, ensuring the overall heating uniformity, while increasing the contact between the surface of the glass short fibers and the heat source and gas, shortening the heating time, and improving the heat conduction efficiency and production efficiency.

[0023] 2. The present invention installs devices such as a mesh belt conveyor, a heating furnace and a transition furnace, and utilizes the mesh belt conveyor to transport the glass fibers to the heating furnace and the transition furnace, thereby realizing continuous preheating, heating and cooling of the glass fibers. A transition furnace is installed between the heating furnaces, and the transition furnace can provide a gradually heated transition area, which ensures a smooth transition between heating furnaces at different temperatures, thereby preventing the glass fibers from being subjected to drastic temperature changes instantly, allowing the glass fibers to better adapt to temperature changes, reducing thermal stress, and helping to reduce the risk of breakage, deformation or damage of the glass fibers, thereby improving the strength and reliability of the product.

[0024] 3. The present invention installs devices such as a V-shaped cleaning brush and a waste chip collection box. When the placement plate completes the heat treatment, the mesh belt conveyor moves the placement plate to the end of the base 1. Before the placement plate enters the bottom of the mesh belt conveyor, the V-shaped cleaning brush cleans the debris remaining on the placement plate into the waste chip collection box to prevent the residue from adhering to the placement plate and affecting the quality and effect of the next heat treatment.

[0025] 4. The present invention installs devices such as high-temperature air bags, gas transport pipes and gas grooves. Gas enters the air guide pipe from the heating furnace and then enters the gas transport pipe from the gas groove, thereby expanding the high-temperature air bag. After the high-temperature air bag expands, the short glass fibers on the placement plate are lifted up, so that the short glass fibers in the heating furnace are heated more evenly, the heat treatment effect is better, and the accumulation of short glass fibers causes a decrease in heat treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a continuous sintering furnace for heat treatment of glass fibers proposed by the present invention.

[0027] Figure 2 This is a schematic diagram of the half-section axonometric structure of a continuous sintering furnace for heat treatment of glass fibers proposed by the present invention.

[0028] Figure 3 This is a schematic diagram of the half-section structure of a continuous sintering furnace for heat treatment of glass fibers proposed by the present invention.

[0029] Figure 4 The present invention is a schematic structural diagram of a mesh belt conveyor portion of a continuous sintering furnace for heat treatment of glass fibers.

[0030] Figure 5 This is a schematic diagram of the half-section axonometric structure of the mesh belt conveyor portion of a continuous sintering furnace for heat treatment of glass fibers proposed by the present invention.

[0031] Figure 6 This is a schematic structural diagram of a placement plate for a continuous sintering furnace for heat treatment of glass fibers proposed by the present invention.

[0032] Figure 7This is a schematic structural diagram of a placement plate from another perspective of a continuous sintering furnace for heat treatment of glass fibers proposed by the present invention.

[0033] Figure 8 This is a schematic diagram of the half-section axonometric structure of a placement plate of a continuous sintering furnace for heat treatment of glass fibers proposed by the present invention.

[0034] Fig. 9 The present invention is a schematic diagram of the partial cross-sectional structure of a placement plate of a continuous sintering furnace for heat treatment of glass fibers.

[0035] Fig.10 for Fig. 9 Schematic diagram of the enlarged structure of part A.

[0036] Fig.11 This is a schematic diagram of the half-section axonometric structure of the heating furnace portion of a continuous sintering furnace for heat treatment of glass fibers proposed by the present invention.

[0037] Fig.12 for Fig.11 Schematic diagram of the enlarged structure of part B.

[0038] In the figure: 1 base, 2 heating furnace, 201 atmosphere tube, 202 gas cavity, 203 gas groove, 204 heating plate, 205 gas outlet pipe, 206 gas guide pipe, 3 transition furnace, 301 baffle, 302 notch groove, 303 fixing block, 304 waste chip collection box, 305 V-shaped cleaning brush, 4 motor, 401 transport roller, 402 mesh belt conveyor, 5 placement plate, 501 gear, 502 worm gear, 503 worm, 504 rotating rod, 505 cam, 506 rotating groove, 507 transmission belt, 6 gas transport pipe, 7 high temperature air bag, 8 top block, 801 connecting groove, 802 spring, 9 rack, 10 control valve. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0040] Reference Figures 1 to 12A continuous sintering furnace for heat treatment of glass fiber includes a base 1, three heating furnaces 2 and four transition furnaces 3 are fixedly installed on the top of the base 1, a heating furnace 2 is arranged between every two transition furnaces 3, and the heating furnace 2 and the transition furnace 3 are fixedly connected together, and different heating temperatures are arranged in the three heating furnaces 2, so as to realize preheating, heating and cooling of the glass fiber, a heating plate 204 is fixedly installed inside the heating furnace 2, notch grooves 302 are opened at both ends of the transition furnace 3, a baffle 301 is slidably connected to the notch groove 302, an electric push rod is fixedly connected between the baffle 301 and the transition furnace 3, and the electric push rod drives the baffle 301 along the notch The groove 302 slides up and down to realize the closing and opening of the heating furnace 2 and the transition furnace 3. The baffle 301 is an asbestos board, which is made of asbestos, glass fiber, clay and other materials. It has strong tensile strength and pressure resistance, can withstand about 1400°C, and has an insulating effect. The transition furnace 3 provides a transition area for the two heating furnaces 2 with a temperature difference to avoid damage to the glass fiber due to rapid temperature changes, thereby ensuring the quality of the heat treatment of the glass fiber. A nozzle is fixedly installed on the top of the inner wall of the leftmost transition furnace 3. The nozzle sprays glass powder on the glass fiber, which helps to improve the wettability and adhesion of the glass fiber, thereby improving the quality of the heat treatment of the glass fiber.

[0041] Two motors 4 are installed on the top of the base 1, and the two motors 4 are symmetrically distributed at both ends of the base 1. The side walls of the transition furnace 3 at both ends of the top of the base 1 are fixedly installed with fixed blocks 303 respectively, and the motor 4 is fixedly installed inside the fixed block 303. The output end of the motor 4 is fixedly connected with a transport roller 401, and the interior of the heating furnace 2 is rotatably connected with the same transport roller 401. The outer walls of the transport roller 401 connected to the motor 4 and the transport roller 401 connected to the heating furnace 2 are jointly sleeved with a mesh belt conveyor 402, and the mesh belt conveyor 402 is used to transport glass fiber into the transition furnace 3 and the heating furnace 2 in turn, so as to realize continuous heat treatment. A waste collection box 304 is fixedly installed on the side wall of the base 1, and the waste collection box 304 is located at the rightmost end of the base 1. A V-shaped cleaning brush 305 is fixedly installed at the bottom of the fixed block 303 at the right end of the base 1, and the V-shaped cleaning brush 305 is located above the waste collection box 304.

[0042] The outer wall of the mesh belt conveyor 402 is fixedly installed with a placement plate 5 through a connecting block, and the electric push rod drives the baffle 301 to descend. The bottom of the baffle 301 is in close contact with the placement plate 5 to close the heating furnace 2. At this time, the bottom of the baffle 301 is slidingly connected with the placement plate 5, so it will not limit the movement of the mesh belt conveyor 402. The placement plate 5 is used to place glass fiber, and the placement plate 5 moves from the left side to the right side of the base 1. The external transportation mechanism adds glass fiber to the top of the placement plate 5. The V-shaped cleaning brush 305 is located below the placement plate 5 to clean the placement plate 5 that has completed the heat treatment work. The cleaned waste chips are collected by the waste chip collection box 304 to prevent the waste chips from affecting the quality of the next heat treatment.

[0043] A connecting groove 801 is provided at the top of the placing plate 5, and a top block 8 is slidably connected inside the connecting groove 801. A rotating groove 506 is provided inside the placing plate 5, and the rotating groove 506 is located below the connecting groove 801, and the bottom of the top block 8 extends into the rotating groove 506. A spring 802 is fixedly connected between the top block 8 and the connecting groove 801. Two groups of rotating components are rotatably connected inside the placing plate 5, and the two groups of rotating components are symmetrically distributed inside the placing plate 5. One group of rotating components includes multiple rotating rods 504 and a transmission belt 507. The transmission belt 507 is sleeved on the outer walls of the multiple rotating rods 504, and the transmission belt 507 is used to drive the multiple rotating rods 504 to move simultaneously. A cam 505 is fixedly installed on the outer wall of the rotating rod 504, and the cam 505 is located in the rotating groove 506. The cam 505 is used to lift the top block 8, so that the top block 8 moves up and down continuously, so that the glass fiber on the placing plate 5 is dispersed, to avoid uneven heating of the accumulated glass fiber, resulting in poor efficiency and effect of heat treatment.

[0044] Two sets of transmission components are installed inside the placement plate 5, and are symmetrically distributed on both sides of the two sets of rotating components, which are used to drive the rotating rod 504 to rotate. The transmission components include gears 501, worm wheels 502 and worm 503. The gear 501 is rotatably connected to the side wall of the placement plate 5, and the worm wheel 502 is rotatably connected to the inside of the placement plate 5. The worm wheel 502 is meshed with the gear 501, and the worm 503 is meshed with the worm wheel 502. The worm 503 is fixedly installed on the side wall of the rotating rod 504. Two racks 9 are fixedly installed on the inner wall of the gas chamber 202. The two racks 9 are symmetrically distributed on both sides of the two sets of transmission components, and the racks 9 are meshed with the gears 501 in the transmission components on the corresponding sides. When the placement plate 5 slowly enters the heating furnace 2, the gear 501 moves along the rack 9, the rack 9 makes the gear 501 rotate, the gear 501 makes the worm wheel 502 rotate, and the worm wheel 502 drives the worm 503 to rotate, thereby rotating the rotating rod 504.

[0045] A high-temperature airbag 7 is fixedly installed on the top of the placement plate 5, and a gas transport pipe 6 is fixedly installed inside the placement plate 5. The two end openings of the gas transport pipe 6 extend out of the placement plate 5. The gas transport pipe 6 is located at the bottom of the high-temperature airbag 7 and is connected to the high-temperature airbag 7. The top of the heating furnace 2 is fixedly connected to an atmosphere pipe 201. Two gas cavities 202 are provided inside the heating furnace 2. A gas groove 203 is penetrated through one side of the two gas cavities 202 close to the placement plate 5. The pipe opening of the gas groove 203 is aligned with the pipe opening of the gas transport pipe 6. The motor 4 controls the placement plate 5 to move at a fixed distance each time, so that the placement plate 5 is located at the same position in each heating furnace 2, thereby ensuring that the pipe opening of the gas transport pipe 6 in the placement plate 5 is aligned with the heating furnace 2. The pipe openings of the gas groove 203 in the hot furnace 2 are aligned, one of the gas cavities 202 is fixedly connected to the inside of the heating furnace 2 by an air guide pipe 206, a control valve 10 is fixedly installed at the pipe opening of the air guide pipe 206, the gas cavity 202 not connected to the air guide pipe 206 is fixedly connected to the outside by an air outlet pipe 205, a control valve 10 for controlling the gas entering the gas groove 203 is fixedly installed in the gas cavity 202 connected to the air outlet pipe 205, the gas enters the bottom of the high-temperature airbag 7 through the air guide pipe 206 and the gas transport pipe 6, so that the high-temperature airbag 7 expands due to the heat, thereby lifting the glass fiber on the top of the placement plate 5, so that the glass fiber is heated more evenly, and the contact area between the glass fiber and the heat source is increased, thereby accelerating the rate of heat treatment.

[0046] In the present invention, in the initial state, the electric push rods in the notched grooves 302 on both sides of each transition furnace 3 are contracted, so that the baffle plate 301 presses the placement plate 5, and the heating furnace 2 is closed. When the broken glass fiber filaments need to be sintered, the heating plate 204 is used for heating. First, the three heating furnaces 2 are heated from left to right to the appropriate preheating temperature, main heating temperature and cooling temperature, respectively, and the electric push rods are lifted up for a distance so that the mesh belt conveyor 402 can move. The motor 4 is started to make the mesh belt conveyor 402 rotate clockwise, driving the placement plate 5 connected to the outer surface of the mesh belt conveyor 402 to move, and the left baffle plate 301 of the leftmost transition furnace 3 is opened. The short glass fiber filaments are dropped onto the top of the placement plate 5 by the external transportation mechanism. As the placement plate 5 moves, the gear 5 on the side wall of the placement plate 5 in the horizontal state at the top of the mesh belt conveyor 402 01 will mesh with the rack 9, the gear 501 will rotate, driving the worm wheel 502 to rotate, so that the worm 503 will rotate, and the rotating rod 504 welded with the worm 503 will rotate. Since several rotating rods 504 are connected by a transmission belt 507, they can keep rotating synchronously, and the cam 505 inside the rotating groove 506 rotates. When the mesh belt conveyor 402 rotates, the cam 505 inside the placement plate 5 in the top horizontal state rotates, and the protruding part of the cam 505 rotates to the top, it will gradually lift up the top block 8. When the convex surface of the cam 505 is away from the top block 8, the spring 802 inside the connecting groove 801 will pull the top block 8 back to the initial position. The up and down movement of the top block 8 can continuously lift up and spread the glass fiber short filaments on the surface of the placement plate 5, making the originally accumulated glass fiber short filaments more uniform, which is conducive to uniform sintering.

[0047] The motor 4 is started to transport the glass fiber short filament material to the interior of the transition furnace 3 on the far left. A nozzle is installed on the top of the transition furnace 3, and powder can be sprayed from the top as needed. The material sprayed with powder can have different electrical conductivity, thermal conductivity, etc. after sintering. Since the material can be spread out during the transportation process, the powder can better cover the surface of the glass fiber short filament. After the initial spreading and spraying of powder, the left baffle 301 of the leftmost transition furnace 3 is closed, and the right baffle 301 is opened. The first transition furnace 3 is connected to the heating furnace 2 with a preheating function. The temperature inside the preheating furnace is not easy to lose. The motor 4 works to make The originally spread glass fiber short filaments are transported to the interior of the heating furnace 2 with a preheating function, and the right baffle 301 of the first transition furnace 3 is closed to form a closed space inside the preheating heating furnace 2, which has a better insulation effect. After the preheating is completed, the left baffle 301 of the transition furnace 3 between the preheating heating furnace 2 and the middle heating furnace 2 with a heating function is opened, and the motor 4 is rotated to allow the preheated material to enter the transition furnace 3, and then the opening and closing of the left and right baffles 301 of the transition furnace 3 are switched, and the motor 4 is continued to rotate to allow the preheated material to truly enter the middle heating furnace 2 with a main heating function.

[0048] The temperature difference between each two heating furnaces 2 is large. In order to avoid the mutual influence of the temperatures in the two furnaces, it is necessary to adjust them separately to reach the appropriate working temperature. A transition furnace 3 is set so that the temperature of the heating furnace 2 can only be connected to the transition furnace 3 with a small internal space, which has a small impact on the inside of the heating furnace 2, so that the temperature between the two heating furnaces 2 will not be neutralized, which is more conducive to energy utilization. Similarly, after the main heating is completed, the transition furnace 3 is used to make the glass fiber short filament material fall into the heating furnace 2 for cooling. After cooling, it enters the rightmost transition furnace 3 and closes the last transition furnace 3. The baffle plate 301 on the left side of the furnace 3 is opened, and the baffle plate 301 on the right side is opened at the same time. The motor 4 rotates to transport the sintered glass fiber filaments out. When the placement plate 5 passes through the left and right transport rollers 401, the placement plate 5 will be tilted, so that the glass fiber filaments on the surface of the placement plate 5 fall along the inclined surface. They can be easily collected by simply placing the collecting device. When the placement plate 5 rotates to the bottom of the mesh belt conveyor 402 and passes through the V-shaped cleaning brush 305, the residue attached to the surface can be cleaned and fall into the waste collection box 304. The placement plate 5 can avoid contamination when placing glass fiber filaments next time.

[0049] Each time the glass fiber short filaments are transported, part of the glass fiber short filaments will be blocked by the closed baffle 301, resulting in new accumulation, so they need to be laid flat again. When sintering, it is necessary to introduce suitable gas from the atmosphere pipe 201 into the closed heating furnace 2. The gas needs to be configured in advance. A part of the rare gas, such as nitrogen, acts as a protector, and another part of the gas, such as oxygen, participates in the reaction and reacts with the glass fiber inside the heating furnace 2. The atmosphere pipe 201 is connected to an external gas storage bottle or mixing equipment. After the interior of the heating furnace 2 is filled with the new atmosphere, ventilation is stopped for a certain period of time. After the reaction gas inside the post-heating furnace 2 is consumed, the mixed gas is introduced again, and the control valve 10 at the bottom of the air duct 206 is opened at the same time, and the new mixed gas enters the heating furnace 2, squeezing the gas after the reaction inside the heating furnace 2 from the air duct 206 to the gas cavity 202 on the corresponding side. The control valve 10 inside the gas cavity 202 on the other side is connected to a pulse current. In the transportation state, the control valves 10 are closed, and the atmosphere pipe 201 stops ventilating. After the transportation is completed, when it arrives at the position where processing is required, the gas tank 203 corresponds to the position of the gas transportation pipe 6.

[0050] When the mixed gas is introduced into the sintering process, the gas after the reaction inside the heating furnace 2 passes through the gas cavity 202, the gas groove 203, the gas transport pipe 6 and the high-temperature air bag 7. The control valve 10 near the outlet pipe 205 is connected to a pulse current and is continuously opened and closed. When closed, the pressure increases due to the introduction of new gas into the heating furnace 2. The high-temperature air bag 7 expands due to the increased pressure inside the bag, and the glass fiber short filaments on the top of the placement plate 5 are lifted up. When opened, the gas with increased pressure inside the heating furnace 2 passes through the gas transport pipe 6, the gas tank 203 near the outlet pipe 205, and the high-temperature air bag 7 is opened. The body groove 203, the gas cavity 202 of the control valve 10 and the air outlet pipe 205 are discharged to the outside of the heating furnace 2. During the exchange of new and old gases by the high-temperature airbag 7, the control valve 10 close to the side of the air outlet pipe 205 is intermittently switched to change the gas pressure inside the heating furnace 2. The high-temperature airbag 7 continuously expands and contracts, so that the glass fiber short filaments can be dispersed during the atmosphere exchange. Each part can get sufficient heat, and the glass fiber short filaments are shaken apart, turned over and spread out when new gas is introduced, so that they are more evenly contacted with the newly introduced mixed gas and react more fully.

[0051] When an efficient reaction is required, the mixed gas can be kept slowly introduced from the atmosphere tube 201. The pulse current of the control valve 10 connected to the side of the outlet pipe 205 can be controlled to control the time interval of the gas fluid. The speed of the pressure change inside the high-temperature airbag 7 changes, thereby controlling the screening efficiency of the glass fiber short filaments at the upper end of the placement plate 5.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A continuous sintering furnace for heat treatment of glass fiber, comprising a base (1), It is characterized in that Also includes: A transition furnace (3), wherein there are four transition furnaces (3), the four transition furnaces (3) are fixedly installed horizontally on the top of the base (1), and a heating furnace (2) is fixedly connected between every two transition furnaces (3), the bottom of the heating furnace (2) is fixedly connected to the base (1), a heating plate (204) is fixedly installed on the inner wall of the heating furnace (2), and the top of the heating furnace (2) is fixedly connected to an atmosphere pipe (201); Notched grooves (302) are provided at both ends of the transition furnace (3), a baffle (301) is slidably connected to the notched groove (302), an electric push rod is fixedly connected between the baffle (301) and the transition furnace (3), the electric push rod is used to drive the baffle (301) to move up and down along the notched groove (302), and the baffle (301) is used to seal the transition furnace (3) and the heating furnace (2); A conveying mechanism, the conveying mechanism comprising a mesh-belt conveyor belt (402), the mesh-belt conveyor belt (402) being installed on the top of the base (1) via a driving assembly, the mesh-belt conveyor belt (402) being used to convey the glass fibers to the transition furnace (3) and the heating furnace (2); A placement plate (5), the placement plate (5) being fixedly mounted on the outer wall of the mesh belt conveyor (402) via a connecting block, the placement plate (5) being used to place glass fibers, a dispersion mechanism being installed inside the placement plate (5), the dispersion mechanism being used to disperse the glass fibers on the placement plate (5); The dispersion mechanism comprises a top block (8), a connecting groove (801) is provided on the top of the placement plate (5), the top block (8) is slidably connected to the connecting groove (801), and a spring (802) is fixedly connected between the top block (8) and the connecting groove (801), the spring (802) is used to pull the top block (8) to move downward, and a rotating assembly is installed below the top block (8), the rotating assembly is used to drive the top block (8) to move upward; The rotating components are in two groups and are symmetrically distributed inside the placement plate (5). The rotating components include a plurality of rotating rods (504). The rotating rods (504) are rotatably connected inside the placement plate (5). A cam (505) is fixedly installed on the side wall of the rotating rod (504). A rotating groove (506) is provided inside the placement plate (5). The cam (505) is located inside the rotating groove (506). The rotating groove (506) is located below the connecting groove (801). The bottom of the top block (8) extends into the rotating groove (506). The cam (505) is used to lift the top block (8). A transmission mechanism is installed inside the placement plate (5). The transmission mechanism is used to drive the rotating rod (504) to rotate. The transmission mechanism comprises two groups, which are symmetrically distributed at both ends of the two groups of rotating components. The transmission mechanism comprises a rack (9), a gear (501), a worm wheel (502) and a worm (503). The rack (9) is fixedly mounted on the side wall of the heating furnace (2). The gear (501) is rotatably connected to the side wall of the placement plate (5). The gear (501) is meshingly connected with the rack (9). The worm wheel (502) is rotatably connected inside the placement plate (5). The worm wheel (502) is meshingly connected with the gear (501). The worm (503) is fixedly mounted on the side wall of the rotating rod (504). The worm wheel (502) is meshingly connected with the worm (503).

2. A continuous sintering furnace for heat treatment of glass fiber according to claim 1, It is characterized in that The side walls of the transition furnace (3) at both ends of the top of the base (1) are fixedly connected to fixed blocks (303), the driving assembly comprises two motors (4), the two motors (4) are symmetrically distributed at both ends of the mesh belt conveyor (402), and are fixedly installed inside the fixed blocks (303), the output ends of the motors (4) are fixedly connected to transport rollers (401), the interior of the heating furnace (2) is rotatably connected to the same transport rollers (401), and the mesh belt conveyor (402) is sleeved on the transport rollers (401) connected to the motors (4) and the transport rollers (401) connected to the heating furnace (2).

3. A continuous sintering furnace for heat treatment of glass fiber according to claim 2, It is characterized in that The device also comprises a cleaning mechanism, the cleaning mechanism comprising a waste collection box (304) fixedly mounted on the side wall of the base (1), a V-shaped cleaning brush (305) fixedly mounted on the bottom of the fixed block (303), the V-shaped cleaning brush (305) being located above the waste collection box (304) and below the placement plate (5), the V-shaped cleaning brush (305) being used to clean residues on the surface of the placement plate (5).

4. A continuous sintering furnace for heat treatment of glass fiber according to claim 1, It is characterized in that Two transmission belts (507) are installed inside the placement plate (5), and the two transmission belts (507) are respectively connected to two groups of rotating components. The transmission belts (507) are sleeved on the outer walls of a plurality of rotating rods (504) in the rotating components, and the transmission belts (507) are used to drive the plurality of rotating rods (504) to rotate simultaneously.

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