An energy-saving fine yarn kiln utilizing white pumice as raw material

Abstract

This utility model relates to the field of glass fiber technology, and in particular to an energy-saving fine yarn kiln utilizing white pumice raw material. It includes a fine yarn kiln and a feeding device for feeding the white pumice raw material. A feeding kiln opening is provided on one side of the fine yarn kiln, and the feeding device is located in front of the feeding kiln opening. A feeding platform is provided between the feeding device and the feeding kiln opening. The feeding device includes a hopper, an anti-clogging component, and a conveying component. A discharge port is provided through the bottom of the hopper, and a discharge pipe is integrally connected to the bottom of the discharge port. The anti-clogging component is located at the top of the hopper, and the bottom of the discharge pipe is connected to the inlet of the conveying component. This application redesigns the existing gravity-fed inclined plate and hopper. The conveying component prevents material accumulation on the gravity-fed inclined plate by employing a spiral stirring rod and an anti-accumulation conveying lifting plate design, effectively avoiding the sticking and clogging of raw materials during the feeding process and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of glass fiber technology, specifically to an energy-saving fine yarn kiln that utilizes white pumice raw materials. Background Technology

[0002] The main components of glass fiber, SiO2 and Al2O3, are introduced from kaolin, pyrophyllite, and quartz powder. With the rapid increase in glass fiber production in China, the grade of domestic high-grade pyrophyllite and quartz powder resources has declined, and high-grade mines are even facing depletion. Although foreign kaolin reserves are huge and of high grade, their prices remain high, putting enormous pressure on production costs. Several major domestic glass fiber suppliers have formulated long-term raw material supply strategies based on their own circumstances. In some regions, the transportation distance for pyrophyllite is thousands of miles, resulting in very high overall costs, which can no longer meet current production needs.

[0003] High-mixed pyrophyllite, also known as mixed white pyrophyllite, is mainly made by mixing kaolin, white pyrophyllite, and pyrophyllite in a certain proportion. The composition of high-mixed pyrophyllite is determined by the type of glass. It can be made from only kaolin and white pyrophyllite, or it can be made from a mixture of white pyrophyllite, kaolin, pyrophyllite, and quartz powder, etc. It is mainly based on the raw material composition requirements of the glass type. During processing, several or more raw materials are directly mixed according to the required proportions to achieve the desired composition. In essence, it is a mixture of multiple raw materials, hence the name high-mixed pyrophyllite. High-mixed pyrophyllite is a product of the gradual depletion of pyrophyllite resources, increased costs, and deteriorated quality after the vigorous development and use of pyrophyllite resources. It is a new fiberglass raw material that emerged in response to the urgent need for continuous cost reduction in the industry.

[0004] The fine yarn furnace is a key piece of equipment in the production of glass fiber yarn, used to melt ore raw materials at high temperatures and draw them into glass fibers. A uniformly mixed alkali-free glass raw material is melted at high temperatures, and bubbles and impurities are removed through a clarification process to obtain pure molten glass. The molten glass is then drawn through a fine yarn furnace to form a continuous stream of glass fiber yarn. Mixed white pumice is added to the fine yarn furnace, melted at high temperatures, cooled through impregnation and extrusion, and after coating, drawn and wound onto cylinders by a drawing machine. Currently, in glass production furnaces, the mixed white pumice is fed into a hopper, with a self-feeding inclined plate at the hopper's discharge port. The material is fed by gravity, and at the outlet, a swing rod adds the mixed white pumice into the furnace. However, the mixed white pumice has a certain viscosity and tends to accumulate in the hopper and on the feeding inclined plate, leading to poor feeding and affecting the normal production process of the fine yarn furnace and the quality of the glass fibers. Utility Model Content

[0005] The purpose of this invention is to provide an energy-saving fine yarn kiln that utilizes white pumice as raw material, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An energy-saving fine yarn kiln using white pumice raw material includes a fine yarn kiln and a feeding device for feeding the white pumice raw material. A feeding kiln opening is provided on one side of the fine yarn kiln, and the feeding device is located in front of the feeding kiln opening. A feeding platform is provided between the feeding device and the feeding kiln opening.

[0008] The feeding device includes a hopper, an anti-clogging component, and a conveying component. A discharge port is provided through the bottom of the hopper, and a discharge pipe is integrally connected to the bottom of the discharge port. The anti-clogging component is located at the top of the hopper, and the bottom of the discharge pipe is connected to the inlet of the conveying component.

[0009] As a preferred embodiment of this utility model, the anti-clogging component includes a fixed frame, an electric telescopic rod, and a spiral stirring rod. The electric telescopic rod is fixedly located on the outer wall of one side of the top of the hopper. The fixed frame is arranged in an L-shape, with one end of the fixed frame connected to the top output end of the electric telescopic rod. The spiral stirring rod is located inside the hopper, and the top of the spiral stirring rod is connected to the fixed frame through a coupling.

[0010] As a preferred embodiment of this utility model, a drive motor is provided on the top of the fixed frame located directly above the hopper, and the top of the spiral stirring rod passes through the fixed frame and is connected to the output end of the drive motor through a coupling.

[0011] As a preferred embodiment of this utility model, the conveying assembly includes a metal conveyor, and anti-accumulation conveying lifting plates are evenly spaced on the conveyor belt of the metal conveyor. The metal conveyor is inclined, the bottom of the discharge pipe is located below the top of the metal conveyor, and the top outlet of the metal conveyor is located on the feeding platform.

[0012] As a preferred embodiment of this utility model, a swing arm is provided on the front side of the feeding platform below the top outlet of the metal conveyor. The swing arm has a U-shaped structure. Support frames are provided on the outer wall of the metal conveyor near the two ends of the swing arm. Each support frame has a support groove at its top. The support groove has a U-shaped structure. The swing arm slides inside the support groove. A support column is connected to the bottom of one end of the swing arm. A swing plate is provided at the bottom of the support column. The swing plate has a U-shaped structure. A swing motor is connected to the outer wall of one side of the swing plate.

[0013] As a preferred embodiment of this utility model, the electric telescopic rod, drive motor, and swing motor are electrically connected to an external controller via wires.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In response to the problems mentioned in the background art, this application uses white pumice to replace pyrophyllite, and quartz powder has lower cost and is more energy-efficient;

[0016] This application designs an existing gravity-feeding inclined plate and hopper. The conveying component prevents material accumulation on the gravity-feeding inclined plate by adopting a spiral stirring rod and an anti-accumulation conveying lifting plate design, which effectively avoids the sticking and clogging of raw materials during the feeding process.

[0017] The optimized feeding system improves production efficiency by ensuring continuous and stable material supply, reducing downtime for cleaning, and enhancing overall production efficiency.

[0018] To reduce production costs, the use of lower-cost white pumice stone to replace some traditional raw materials has reduced raw material costs. At the same time, the energy-saving design has reduced energy consumption expenditures.

[0019] During operation, the mixed white pumice raw material is added to the hopper, and the drive motor is started to rotate the spiral stirring rod to prevent the raw material from sticking and ensure smooth feeding. The raw material enters the metal conveyor through the feeding pipe, is evenly distributed by the anti-accumulation conveying lifting plate and conveyed to the feeding platform. Finally, the raw material is evenly added into the kiln by the swing rod for melting and drawing. The energy-saving fine yarn kiln using white pumice raw material not only solves the problems existing in the current technology, but also brings significant economic and environmental benefits, which is of great significance for promoting the development of the glass fiber industry.

[0020] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0021] Figure 1 This is a top view of the overall structure of this utility model;

[0022] Figure 2 This is a side view of the hopper and anti-clogging component of this utility model;

[0023] Figure 3 This is a schematic diagram of the anti-accumulation conveying lifting plate on the top of the metal conveyor of this utility model;

[0024] Figure 4 This is a top view of the rocker arm connection of this utility model;

[0025] Figure 5 This is a schematic diagram showing the connection between the support pole and the side of the swing plate of this utility model.

[0026] In the diagram: 1. Fine yarn kiln; 11. Feeding kiln opening; 111. Feeding platform; 2. Feeding device; 21. Hopper; 211. Discharge port; 212. Discharge pipe; 22. Anti-clogging component; 221. Fixing frame; 222. Electric telescopic rod; 223. Spiral stirring rod; 224. Drive motor; 23. Conveying component; 231. Metal conveyor; 232. Anti-accumulation conveying lifting plate; 24. Swing rod; 241. Support frame; 2411. Support groove; 242. Support upright; 243. Swing plate; 244. Swing motor. Detailed Implementation

[0027] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive. Example

[0028] Please see Figure 1-5 This utility model provides a technical solution: an energy-saving fine spinning kiln using white pumice raw material, including a fine spinning kiln 1 and a feeding device 2 for feeding the white pumice raw material. A feeding kiln opening 11 is provided on one side of the fine spinning kiln 1. The feeding device 2 is located in front of the feeding kiln opening 11. A feeding platform 111 is provided between the feeding device 2 and the feeding kiln opening 11. The feeding device 2 includes a hopper 21, an anti-blocking component 22, and a conveying component 23. A discharge port 211 is provided through the bottom of the hopper 21, and a discharge pipe 212 is integrally connected to the bottom of the discharge port 211. The anti-blocking component 22 is located at the top inside the hopper 21, and the bottom of the discharge pipe 212 is connected to the conveying component. The anti-clogging component 22, connected to the inlet 23, includes a fixed frame 221, an electric telescopic rod 222, and a spiral stirring rod 223. The electric telescopic rod 222 is fixedly located on the outer wall of one side of the top of the hopper 21. The fixed frame 221 is arranged in an L-shape. One end of the fixed frame 221 is connected to the top output end of the electric telescopic rod 222. The spiral stirring rod 223 is located inside the hopper 21. The top of the spiral stirring rod 223 is connected to the fixed frame 221 through a coupling. A drive motor 224 is installed on the top of the fixed frame 221 located directly above the hopper 21. The top of the spiral stirring rod 223 passes through the fixed frame 221 and is connected to the output end of the drive motor 224 through a coupling.

[0029] It should be noted that, in this embodiment, the fine yarn kiln structure includes a fine yarn kiln body 1 and a feeding device 2 for adding white pumice raw materials. A feeding kiln opening 11 is provided on one side of the fine yarn kiln, and the feeding device 2 is located in front of the feeding kiln opening.

[0030] The anti-clogging component 22 includes a fixed frame 221, an electric telescopic rod 222, and a spiral stirring rod 223. The electric telescopic rod 223 is fixed on the outer side of the top of the hopper 21. One end of the L-shaped fixed frame 221 is connected to the top output end of the electric telescopic rod 222. The spiral stirring rod 223 is located at the top of the hopper 21. The top of the fixed frame 221 located directly above the hopper 21 is equipped with a drive motor 224. The top of the spiral stirring rod 223 passes through the fixed frame 221 and is connected to the output end of the drive motor 224 through the coupling.

[0031] When the drive motor 224 is working, it will drive the spiral stirring rod 223 to rotate. This rotation helps to prevent the raw materials inside the hopper 21 from sticking and ensures that the raw materials can be smoothly fed into the discharge port 211.

[0032] At the same time, the electric telescopic rod 222 will drive the fixed frame 221 to move up and down, and the spiral stirring rod 223 on the fixed frame will also move up and down accordingly. This up and down movement further enhances the stirring effect on the raw materials, ensuring that the raw materials are fully mixed and loosened before entering the feed pipe 212, thereby effectively avoiding the occurrence of blockage.

[0033] Please see Figure 1 , 3 4 and 5, the conveying assembly 23 includes a metal conveyor 231, on which anti-accumulation conveying lifting plates 232 are evenly spaced. The metal conveyor 231 is inclined, and the bottom of the discharge pipe 212 is located below the top of the metal conveyor 231. The top outlet of the metal conveyor 231 is located on the feeding platform 111. A swing arm 24 is arranged in a U-shape on the front side of the feeding platform 111 below the top outlet of the metal conveyor 231. The metal conveyor 231 is located near the outer wall of the two ends of the swing arm 24. A support frame 241 is provided on the outer wall of 31. Each support frame 241 has a support groove 2411 at the top. The support groove 2411 is U-shaped. The swing rod 24 slides inside the support groove 2411. One end of the swing rod 24 is connected to a support rod 242. The bottom of the support rod 242 has a swing plate 243. The swing plate 243 is U-shaped. A swing motor 244 is connected to one side of the outer wall of the swing plate 243. The electric telescopic rod 222, the drive motor 224 and the swing motor 244 are electrically connected to an external controller through wires.

[0034] It should be noted that in this embodiment, the conveying assembly is composed of a metal conveyor 231. Anti-accumulation conveying lifting plates 232 are evenly spaced on the conveyor belt. The metal conveyor 231 is inclined. The bottom of the discharge pipe is located below the top of the metal conveyor. The top outlet of the metal conveyor 231 is located on the feeding platform 111. When the metal conveyor 231 rotates, it drives the white stone raw material located on the anti-accumulation conveying lifting plates 232 to be lifted. After being lifted evenly at intervals, it falls onto the feeding platform 111 in front of the swing arm 24. The conveyor belt on the metal conveyor 231 is made of 304 stainless steel, which has good anti-corrosion effect. The surface of 304 stainless steel is smooth, which has good discharge effect and prevents material from sticking and accumulating.

[0035] When the swing motor 244 is working, it drives the swing plate 243 to rotate. While the swing plate 243 is rotating, it drives the support rod 242 to make a circular motion, which drives the swing rod 24 to move back and forth, pushing the white stone raw material on the feeding platform 111 in front of the swing rod 24 into the fine yarn kiln 1 through the feeding kiln opening 11.

[0036] The high-mixed material of this application, also known as mixed white pyrophyllite, is mainly made by mixing kaolin, white pyrophyllite, and pyrophyllite in a certain proportion. The composition of the high-mixed material is determined by the glass type. It can be made by mixing only kaolin and white pyrophyllite, or it can be made by mixing white pyrophyllite, kaolin, pyrophyllite, and quartz powder. The silicon and aluminum composition of white pyrophyllite is similar to that of pyrophyllite, with SiO2 mass fraction between 76% and 85% and Al2O3 mass fraction between 9% and 14%. It has the advantages of abundant resources, low price, thick mineral layers, and easy mining. Therefore, white pyrophyllite has been widely used in the glass fiber industry as a substitute for pyrophyllite.

[0037] Currently, the usage of pyrophyllite is 0.66 tons / set and kaolin is 0.092 tons / set. After using white pyrophyllite, the price of white pyrophyllite is 200 yuan / ton less than that of pyrophyllite, which is nearly 100 yuan / ton less in raw materials and 150 yuan / ton less in finished products, thus significantly reducing the production cost of the products.

[0038] White pebbles are easy to mine, have a simple and stable mineral phase, and their processing quality is more stable than that of pyrophyllite, thus ensuring stable production operations.

[0039] Because white pebbles have a low COD, the amount of sodium sulfate introduced is reduced, which in turn reduces the amount of SO3 and lowers the difficulty of environmental treatment. Example

[0040] The pre-mixed white pumice high-mix material, which is made by mixing kaolin, white pumice, pyrophyllite, etc. in a certain proportion, is added to the hopper 21. These raw materials are precisely proportioned to meet the composition requirements of different glass types. The drive motor 224 is started, and the spiral stirring rod 223 is rotated through the coupling. Simultaneously, the electric telescopic rod 222 drives the fixed frame 221 to move up and down, causing the spiral stirring rod to move up and down and stir within the hopper, effectively preventing raw material sticking and ensuring that the raw material can be smoothly fed into the discharge port 211. This process not only promotes uniform mixing of the raw material but also avoids the problem of poor discharge caused by raw material adhesion. After stirring, the raw material enters the metal conveyor 231 through the discharge pipe 212. The metal conveyor 231 is inclined, and its conveyor belt is evenly spaced with anti-accumulation conveying lifting plates 232. These lifting plates move up and down with the rotation of the conveyor, lifting the raw material upward and finally dropping it onto the feeding platform 111 in front of the swing rod 24. The metal conveyor is made of 304 stainless steel, which has good corrosion resistance and a smooth surface, helping to prevent material sticking and accumulation. When the raw material is conveyed onto the feeding platform 111... Then, the swing motor 244 starts working, driving the swing plate 243 to rotate. The swing plate is connected to the swing rod 24 through the support rod 242, so that the swing rod slides back and forth in the support groove 2411, pushing the white pumice raw material on the feeding platform evenly into the feeding kiln opening 11 of the fine yarn kiln 1. This step ensures that the raw material can be evenly distributed inside the kiln, providing a good foundation for the subsequent melting and drawing process. The high temperature environment inside the fine yarn kiln 1 melts the fed white pumice raw material into glass liquid. During this process, bubbles and impurities are removed by precisely controlling the temperature and atmosphere conditions to obtain pure glass liquid. The molten glass liquid undergoes a clarification process to further remove tiny bubbles and impurities, and is homogenized to make its composition more uniform. The homogenized glass liquid is then drawn by the fine yarn tank kiln drawing machine to form continuous glass fiber yarn.

[0041] The working process of this utility model:

[0042] In use, a pre-mixed high-mixture material of white pumice (kaolin, white pumice, pyrophyllite, etc.) is added to hopper 21 in a certain proportion. These raw materials are precisely proportioned to meet the composition requirements of different glass types. The drive motor 224 is started, which drives the spiral stirring rod 223 to rotate through the coupling. At the same time, the electric telescopic rod 222 drives the fixed frame 221 to move up and down, so that the spiral stirring rod moves up and down to stir within the hopper, effectively preventing the raw materials from sticking and ensuring that the raw materials can be smoothly fed into the discharge port 211. This process not only promotes the uniform mixing of the raw materials, but also avoids the problem of poor discharge caused by the adhesion of raw materials. After stirring, the raw materials enter the metal conveyor 231 through the discharge pipe 212. The metal conveyor 231 is set at an inclination, and its conveyor belt is evenly spaced with anti-accumulation conveying lifting plates 232. These lifting plates move up and down with the rotation of the conveyor, lifting the raw materials upwards and finally... The material falls onto the feeding platform 111 in front of the swing arm 24. The metal conveyor is made of 304 stainless steel, which has good corrosion resistance and a smooth surface, helping to prevent material from sticking and accumulating. After the raw material is conveyed to the feeding platform 111, the swing motor 244 starts to work, driving the swing plate 243 to rotate. The swing plate is connected to the swing arm 24 through the support rod 242, so that the swing arm slides back and forth in the support groove 2411, pushing the white pumice raw material on the feeding platform evenly into the feeding kiln opening 11 of the fine yarn kiln 1. This step ensures that the raw material can be evenly distributed inside the kiln, providing a good foundation for the subsequent melting and drawing process.

[0043] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. An energy-saving fine yarn kiln utilizing white pumice as raw material, comprising a fine yarn kiln (1) and a feeding device (2) for feeding the white pumice raw material, characterized in that: The fine yarn kiln (1) has a feeding kiln opening (11) on one side, the feeding device (2) is located in front of the feeding kiln opening (11), and a feeding platform (111) is provided between the feeding device (2) and the feeding kiln opening (11). The feeding device (2) includes a hopper (21), an anti-clogging component (22), and a conveying component (23). The bottom of the hopper (21) is connected to a discharge port (211), and the bottom of the discharge port (211) is integrally connected to a discharge pipe (212). The anti-clogging component (22) is located at the top inside the hopper (21), and the bottom of the discharge pipe (212) is connected to the inlet of the conveying component (23).

2. The energy-saving fine yarn kiln utilizing white pumice raw material according to claim 1, characterized in that: The anti-clogging component (22) includes a fixed frame (221), an electric telescopic rod (222), and a spiral stirring rod (223). The electric telescopic rod (222) is fixed on the outer wall of the top side of the hopper (21). The fixed frame (221) is arranged in an L-shape. One end of the fixed frame (221) is connected to the top output end of the electric telescopic rod (222). The spiral stirring rod (223) is located inside the hopper (21). The top of the spiral stirring rod (223) is connected to the fixed frame (221) through a coupling.

3. The energy-saving fine yarn kiln utilizing white pumice raw material according to claim 2, characterized in that: A drive motor (224) is installed on the top of the fixed frame (221) located directly above the hopper (21). The top of the spiral stirring rod (223) passes through the fixed frame (221) and is connected to the output end of the drive motor (224) through a coupling.

4. The energy-saving fine yarn kiln utilizing white pumice raw material according to claim 1, characterized in that: The conveying assembly (23) includes a metal conveyor (231), on which anti-accumulation conveying lifting plates (232) are evenly spaced on the conveyor belt of the metal conveyor (231). The metal conveyor (231) is inclined. The bottom of the discharge pipe (212) is located below the top of the metal conveyor (231). The top outlet of the metal conveyor (231) is located on the feeding platform (111).

5. An energy-saving fine yarn kiln utilizing white pumice raw material according to claim 4, characterized in that: A swing arm (24) is provided on the front side of the feeding platform (111) below the top outlet of the metal conveyor (231). The swing arm (24) is U-shaped. A support frame (241) is provided on the outer wall of the metal conveyor (231) near the two ends of the swing arm (24). Each support frame (241) is provided with a support groove (2411) at the top. The support groove (2411) is U-shaped. The swing arm (24) slides inside the support groove (2411). A support rod (242) is connected to the bottom of one end of the swing arm (24). A swing plate (243) is provided at the bottom of the support rod (242). The swing plate (243) is U-shaped. A swing motor (244) is connected to the outer wall of one side of the swing plate (243).

6. An energy-saving fine yarn kiln utilizing white pumice raw material according to claim 2, characterized in that: The electric telescopic rod (222), drive motor (224) and swing motor (244) are electrically connected to an external controller via wires.

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