A quartz weight production using a burner

Abstract

This utility model relates to a burner used in the production of quartz ingots, belonging to the field of quartz product manufacturing equipment. The burner consists of five parts: a lamp cover, a lamp holder, an oxygen pipe, a hydrogen pipe, and feeding pipes. Four feeding pipes are arranged in a central configuration, with three externally distributed circumferentially penetrating the lamp holder and lamp cover, forming a feeding channel. Quartz powder can slide along the inner surface of the feeding channel to the molten pool, spreading evenly on the surface for easy melting. One oxygen pipe and two hydrogen pipes are connected to the outside of the lamp cover, with the lamp holder separating the hydrogen and oxygen to prevent them from mixing and exploding inside the quartz lamp. The lamp holder is internally divided by a sieve plate. The upper space is an oxygen chamber, and the lower space contains different levels of wick tubes arranged in a ring array, obliquely welded below the sieve plate. The number of levels needs to be designed according to the specifications of the quartz ingot. The focal points of different levels of wick tubes are the same point, guiding the flow of the mixed gas to ensure complete combustion, increasing the burner's operating temperature, and thus improving the quality of silica melting.

Description

Technical Field

[0001] This utility model belongs to the field of quartz product manufacturing equipment, specifically relating to a burner used in the production of quartz balls. Background Technology

[0002] Quartz ingots are a type of raw material for quartz glass. They have advantages such as high transparency, few bubbles, low coefficient of expansion, excellent thermal shock resistance, and good machinability. They can be used to produce quartz glass crucibles for the semiconductor industry, radiation-resistant quartz glass for aerospace, and quartz glass holding rods for optical fiber manufacturing. They are one of the most widely used high-tech raw materials.

[0003] Currently, there are various methods for producing quartz ingots, with gas refining and plasma refining being the most common in the market. Plasma refining uses plasma as a heat source to melt and deposit the raw materials into ingots; this method produces quartz ingots with lower hydroxyl content and higher quality, but the overall production cost is too high. Gas refining uses an oxyhydrogen flame as a heat source to heat quartz sand or natural quartz, producing quartz ingots through high-temperature melting and deposition; this method has simple equipment, convenient operation, lower cost, and a high return on investment, making it widely used in small and medium-sized enterprises; its disadvantage lies in the difficulty of controlling the ingot shape and internal quality. In recent years, enterprises have been continuously exploring and overcoming difficulties in gas refining ingot production, and have discovered that the key to solving the shortcomings of gas refining ingot production lies in the structure of the quartz lamp, which directly affects the shape and internal quality of the quartz ingot. Research in this area is still in its early stages for all enterprises.

[0004] Initially, the production of quartz ingots typically used a single main feed pipe, similar to the design of quartz glass burners. Multiple feed pipes branched off and entered the gas chamber of the quartz lamp holder. Oxygen or inert gas was blown through the wick tube below the lamp holder onto the surface of the quartz ingot, completing the material deposition. However, due to the pressurized gas, turbulence was created when the gas reached the surface of the quartz ingot, resulting in uneven material distribution. In addition, during production, some quartz sand would melt and stick to the wick opening at high temperatures, causing blockages, and in severe cases, lamp explosions.

[0005] The first-generation quartz lamp used a wick tube feeding method, and utilized hydrogen gas to gather and obliquely sweep along the surface of the lower conical outer shell of the lamp cover. This caused the quartz sand to overcome the centrifugal force generated by the rotation of the quartz base and gather into a cone shape at the center of the quartz base. Due to factors such as uneven quartz sand content in the branch feeding pipes after the diversion and unstable pressurized hydrogen delivery, the resulting conical material may be irregular and requires subsequent manual adjustment.

[0006] The early quartz lamp burner design used wicks arranged in a tiered, evenly distributed circumference, and welded obliquely below the sieve plate. The wicks in each tier were welded at equal angles, with their focal points evenly spaced along the circumference's center line, not converging at a single point. This method resulted in a temperature gradient between the oxygen and hydrogen in the wicks on different circumferences after ignition, leading to insufficient heat output and low hydrogen-oxygen utilization. Utility Model Content

[0007] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a burner for the production of quartz balls, so as to solve the problems of insufficient quartz sand feeding and insufficient firepower of quartz lamps.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a burner for quartz ingot production, comprising a lampshade, a lamp holder, an oxygen pipe, a hydrogen pipe, and a feeding pipe. The lamp holder is located inside the lampshade. The burner is characterized by having four feeding pipes: one centrally located and three externally located, evenly distributed around the circumference and penetrating the lamp holder and lampshade to form a feeding channel. One oxygen pipe and two hydrogen pipes are connected to the outside of the lampshade, separating the hydrogen and oxygen through the lamp holder to prevent them from mixing and exploding inside the quartz lamp. The lamp holder is divided into upper and lower sections by a sieve plate. The upper section is an oxygen chamber, and the lower section contains wicks of different levels arranged in a ring array, obliquely welded below the sieve plate. The number of levels needs to be designed according to the quartz ingot specifications, and the focal points of the wicks of different levels are the same point, guiding the oxygen flow.

[0009] As a further technical solution for the burner used in the production of the aforementioned quartz ingot, the lamp cover has two layers, an inner and an outer layer, which are respectively connected to hydrogen and oxygen tubes to isolate the hydrogen and oxygen inside the quartz lamp.

[0010] As a further technical solution for the burner used in the production of quartz ingots mentioned above, the hydrogen pipes are a set of two, which are symmetrical about the top of the lamp holder and communicate with the outer shell of the lamp cover.

[0011] As a further technical solution for the burner used in the production of quartz ingots, the oxygen tube is a single tube, which is set on the outer circumference of the top of the lamp cover, slightly higher than the hydrogen tube, and communicates with the inner sleeve of the lamp cover, and is at a 90° angle to the hydrogen tube in the horizontal direction.

[0012] As a further technical solution for the burner used in the production of quartz ingots mentioned above, the bottom of the lamp holder is provided with a plurality of wick tubes, the upper ends of which are connected to the lamp holder.

[0013] As a further technical solution for the burner used in the production of the aforementioned quartz ingot, the bottom outlet end faces of the plurality of wick tubes are located inside the lamp cover, and the extension lines of all the wick tubes converge at a single point.

[0014] As a further technical solution for the burner used in the production of the aforementioned quartz ingot, the bottom of the branch feeding pipe is slightly longer than the wick tube, but its outlet end face is still located inside the lamp cover; the inner diameter of the branch feeding pipe is larger than that of the wick tube.

[0015] Compared to the first generation, the burner for quartz ingot production provided by this utility model has the following beneficial effects:

[0016] 1. The four branch feeding pipes adopt a structure with one central pipe and three outer pipes, evenly distributed around the circumference and penetrating the lamp holder and lamp cover, which allows the quartz sand to fall directly and spread evenly on the surface of the quartz base; the oxygen in the core pipe and the pressurized hydrogen in the inner ring of the lamp cover can make the quartz sand more uniform on the surface of the quartz base.

[0017] 2. The tail of the branch feeding pipe is slightly longer than the wick tube, which facilitates the purging of quartz sand by hydrogen and oxygen and the falling of quartz sand onto the surface of the quartz base. This structural design also reduces the possibility of quartz sand melting and sticking to the wick tube at high temperatures. Even if quartz sand melts and sticks to the branch feeding pipe at high temperatures, the inner diameter of the branch feeding pipe is larger than that of the wick tube, which further reduces the possibility of quartz lamp blockage. In addition, no pressurized gas flows through the feeding pipe, so even if there is blockage, the lamp will not explode, thus improving production safety.

[0018] 3. By designing different levels of lamp wick tubes with the same focal point, pressurized oxygen is guided to flow to the same place in the lamp wick tube, mixes with hydrogen, ignites, and burns completely, thereby increasing the limit temperature of the quartz burner, enhancing the melting efficiency of quartz sand, further improving the melting quality of quartz sand, and also improving the utilization rate of hydrogen and oxygen. Attached Figure Description

[0019] In order to clearly describe the technical solution of this utility model patent, the accompanying drawings are now described as necessary;

[0020] Figure 1 A schematic diagram of the process of melting quartz ingots using a burner in the production of quartz ingots;

[0021] Figure 2 A schematic diagram of the burner used in the production of the quartz ingot of this utility model;

[0022] Figure 3 for Figure 2 Internal cross-sectional structural diagram;

[0023] Attached reference numerals: 1-feeding pipe, 2-oxygen pipe, 3-hydrogen pipe, 4-quartz lampshade, 5-quartz lamp holder, 6-sieve plate, 7-wick tube, 8-wick tube theoretical focus. Detailed Implementation

[0024] To make the purpose, technical solution and advantages of this utility model clearer, the utility model will now be described in further detail with reference to the accompanying drawings and examples.

[0025] See appendix Figure 2-3 As shown, a burner for the production of quartz ingots according to an example of this utility model includes a feed pipe 1, an oxygen pipe 2, a hydrogen pipe 3, a quartz lamp cover 4, a quartz lamp holder 5, a sieve plate 6, and a wick tube 7; the lamp holder 5 is set inside the lamp cover 4, and the lower half of the lamp cover 4 has an inverted conical shape; according to the connection angle between the components and the lamp cover 4, from top to bottom, they are the feed pipe 1, the oxygen pipe 2, and the hydrogen pipe 3.

[0026] In this embodiment of the utility model, the feeding pipe 1 is divided into four branch feeding pipes, with one in the middle and three on the outside, evenly distributed around the circumference and penetrating the lamp cover 4, lamp holder 5, and screen plate 6 to form a feeding channel. The tail end of the feeding pipe 1 is slightly longer than the lamp wick tube 7, but its outlet end face is still located inside the lamp cover 1; its inner diameter is larger than the inner diameter of the lamp wick tube 7.

[0027] In this embodiment of the invention, there is only one oxygen tube 2 and two hydrogen tubes 3, with the two hydrogen tubes being symmetrical about the top of the lamp holder 5. The oxygen tube 2 is slightly higher than the hydrogen tube 3, passing through both the inner and outer lamp covers 4 and connected to the lamp holder 5. The hydrogen tube 3 only passes through the outer lamp cover 4. The lamp holder 5 separates the oxygen and hydrogen, with the oxygen inside and the hydrogen outside, to prevent the two from mixing and exploding inside the quartz lamp.

[0028] In this embodiment of the invention, the quartz lamp holder 5 is divided into upper and lower parts by a sieve plate 6. The upper part is an oxygen chamber where oxygen can be temporarily stored. During normal production, it will flow out along the wick tube 7. The lower part consists of wick tubes 7 arranged in a ring array of different levels, which are obliquely welded to the bottom of the sieve plate. The number of levels needs to be designed according to the specifications of the quartz weight. The focal point of the wick tubes of different levels is the same point, which guides the flow of oxygen. This point is the theoretical focal point 8 of the wick tube.

[0029] When using a burner in the production of a quartz ingot using the above example, quartz powder slides directly onto the surface of the quartz ingot through the feed pipe 1. Simultaneously, pressurized oxygen enters the oxygen chamber within the quartz lamp holder 5 along the oxygen pipe 2 and flows out along the wick tube 7 below the sieve plate 6. Since all wick tubes share the same theoretical focal point 8, the pressurized oxygen is guided by the wick tube 7 to the same location. Simultaneously, pressurized hydrogen enters the interlayer between the lamp cover 4 and the lamp holder 5 along the hydrogen pipe 3 and flows out along the inverted conical surface inside the lamp cover 4, purging the quartz powder and mixing with the oxygen before ignition to melt the quartz powder. This method improves the utilization rate of hydrogen and oxygen, thereby increasing the limiting temperature of the quartz burner and ensuring more uniform quartz powder feeding, further improving the melting quality of the quartz ingot. Furthermore, because hydrogen, oxygen, and quartz powder each have independent channels, the possibility of lamp explosions caused by material blockage is reduced, improving the safety of the burner used in quartz ingot production.

[0030] The foregoing has shown and described the basic principles of the present invention. The above are merely preferred examples of the present invention and are not intended to limit the present invention. The examples and descriptions in the specification are only for illustrating the principles of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and scope of the present invention without departing from its scope should be included within the protection scope of the present invention.

Claims

1. A burner for producing quartz ingots, comprising a lampshade, a lamp holder, an oxygen pipe, a hydrogen pipe, and a feed pipe, wherein the lamp holder is disposed inside the lampshade, characterized in that: There are a total of four feeding pipes, with one centrally located and three externally distributed in a circular pattern passing through the lamp holder and lamp cover to form a feeding channel. The lamp cover is connected to one oxygen pipe and two hydrogen pipes, which are separated by the lamp holder to prevent the hydrogen and oxygen from mixing and exploding inside the quartz lamp. The inside of the lamp holder is divided into upper and lower parts by a sieve plate. The upper space is the oxygen chamber, and the lower part contains different levels of wick tubes arranged in a ring array, which are obliquely welded to the bottom of the sieve plate. The number of levels needs to be designed according to the specifications of the quartz weight. The focal point of different levels of wick tubes is the same point to guide the flow of the mixed gas.

2. The burner used in the production of quartz ingots as described in claim 1, characterized in that: The lampshade has two layers, an inner and an outer layer, which are connected to hydrogen and oxygen tubes respectively, isolating the hydrogen and oxygen inside the quartz lamp.

3. The burner used in the production of quartz ingots as described in claim 2, characterized in that: The hydrogen pipes are a set of two, symmetrical about the top of the lamp holder, and connected to the lamp cover shell.

4. The burner used in the production of quartz ingots as described in claim 3, characterized in that: The oxygen tube is a single tube, located on the outer circumference of the top of the lampshade, slightly higher than the hydrogen tube, communicating with the inner sleeve of the lampshade, and forming a 90° angle with the hydrogen tube in the horizontal direction.

5. A burner for the production of quartz ingots as described in any one of claims 3 or 4, characterized in that: The lamp holder has several lamp wick tubes at its bottom, and the upper ends of the lamp wick tubes are connected to the lamp holder.

6. The burner used in the production of quartz ingots as described in claim 5, characterized in that: The bottom outlet faces of the plurality of lamp wicks are located inside the lamp cover, and the extension lines of all the lamp wicks converge at a single point.

7. The burner used in the production of quartz ingots as described in claim 6, characterized in that: The bottom of the branch feeding tube is slightly longer than the lamp wick tube, but its outlet end face is still located inside the lamp cover; the inner diameter of the branch feeding tube is larger than that of the lamp wick tube.

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