Molten glass discharging device

Abstract

A molten glass discharging device comprises a first discharging pipe, a discharging channel for molten glass to flow is arranged in the first discharging pipe, a second heating device is arranged outside the first discharging pipe, the second heating device comprises a spiral pipe, and the spiral pipe is arranged on the first discharging pipe in a sleeving mode and can heat the first discharging pipe; the spiral pipe is of a hollow structure, cooling liquid is introduced into the spiral pipe, and the first discharging pipe can be cooled through the cooling liquid. The spiral pipe can be used for heating, cooling liquid can be introduced for cooling treatment, and the requirement of different processes for temperature conditions can be met. In addition, a discharging channel in the first discharging pipe is arranged to be a reverse double-channel, and the circulation path of the molten glass can be prolonged through the reverse double-channel, so that natural heat dissipation and cooling of the molten glass are facilitated; and the first discharging channel is opposite to the gravity direction, so that bubble overflow and impurity precipitation are facilitated, and a clarification effect can be achieved. The discharge cooling requirement and the clarification requirement can be balanced, and the high flexibility is achieved.

Description

Technical Field

[0001] The invention relates to glass production equipment, in particular to a glass liquid discharging device. Background Art

[0002] Glass kilns are high-temperature furnaces used to make glass. They melt raw materials at high temperatures to form molten glass, which is then made into the desired glass products through various processes (such as blowing, pressing, drawing, etc.). The furnace bodies of existing glass kilns are usually made of bricks, cement, steel bars and other materials, which are suitable for large-scale production, and the construction cost of glass kilns is very high, easily costing tens of millions.

[0003] Therefore, the existing construction method of glass kilns is not suitable for small-batch production, and due to its high cost, only companies with very strong funds can build glass kilns for glass production, while other small and medium-sized enterprises cannot build glass kilns for glass production due to limited funds.

[0004] Therefore, if a glass furnace suitable for small batch production and with greatly reduced cost can be provided, it will surely meet the actual market demand. To this end, the applicant has developed a tubular glass furnace device.

[0005] In the glass production process, after the glass raw materials are melted, in order to eliminate the microbubbles in the glass liquid, the temperature usually needs to be raised to above 1500 degrees Celsius, and special high-aluminum glass needs to be raised to above 1640 degrees Celsius. According to the process requirements, when the kiln is put into use, it is usually necessary to preheat and heat up, and the temperature is generally controlled at 600-1100 degrees Celsius (there will be large changes due to different material boxes and processes). After normal production, the temperature of the glass liquid in the melting zone usually needs to be controlled at above 1500 degrees Celsius, and the temperature of the glass liquid near the discharge port needs to be controlled at 900-1150 degrees Celsius. Compared with the melting zone in the front section, cooling treatment is usually required before discharging; and cooling treatment is not conducive to the elimination of microbubbles (i.e., clarification of glass liquid). Therefore, after the glass raw materials are melted, the glass liquid needs to be cooled and clarified before discharging. The temperature requirements for cooling and clarification are opposite. It is difficult for the existing technology to achieve temperature regulation of the glass liquid after melting and before discharging, so as to meet the requirements of cooling and clarification at the same time. Summary of the invention

[0006] The present invention aims to solve the above-mentioned problem and provide a glass liquid discharging device which is conducive to temperature adjustment before glass liquid is discharged and can meet the requirements of cooling and clarification at the same time.

[0007] In order to solve the above problems, the present invention provides a glass liquid discharging device, characterized in that it includes a first discharging pipe, the interior of the first discharging pipe provides a discharging channel for the glass liquid to flow, and a second heating device is provided outside the first discharging pipe. The second heating device includes a spiral tube, which is sleeved on the first discharging pipe to heat the first discharging pipe; the spiral tube is a hollow structure, and a coolant flows inside the spiral tube, and the first discharging pipe can be cooled by the coolant.

[0008] Furthermore, the first discharge pipe is a tubular component made of a first high-temperature material.

[0009] Furthermore, the first discharge pipe includes a first discharge outer pipe and a first discharge inner pipe, the first discharge outer pipe is sleeved outside the first discharge inner pipe, the first discharge outer pipe is a tubular component made of a first high-temperature material, and the first discharge inner pipe is a tubular component made of a second high-temperature material; the second high-temperature material is different from the first high-temperature material.

[0010] Furthermore, it also includes a second discharge pipe, which is arranged in parallel with the first discharge pipe, the first discharge pipe and the second discharge pipe are spaced apart to form a first discharge channel L, the interior of the second discharge pipe forms a second discharge channel L, and the second end of the first discharge pipe is connected to the second end of the second discharge pipe; the glass liquid can flow into the first discharge channel L from the first end of the first discharge pipe, and then flow into the second discharge channel L against the direction of gravity and flow out from the first end of the second discharge pipe along the direction of gravity.

[0011] Furthermore, a third partition is provided between the first discharge pipe and the second discharge pipe, the third partition is provided with a through hole, the second end of the second discharge pipe passes through the third partition and extends to a free end, and the second end of the second discharge pipe is connected with the interior of the first discharge pipe.

[0012] Furthermore, the first discharge pipe is arranged on the base beam along the second direction Y, and the base beam is arranged along the first direction X; a second hole portion arranged along the second direction Y is provided on the base beam, and the first end of the first discharge pipe is threadedly connected to the second hole portion, and the interior of the first discharge pipe is connected to the interior of the base beam through the second hole portion.

[0013] Furthermore, a second connecting tube is provided in the second hole portion and is arranged along the second direction Y, and the second connecting tube is connected to the first discharge pipe and the interior of the base beam; a sealing plate is provided at the end of the second connecting tube opposite to the first discharge pipe, and the first end of the second discharge pipe passes through the second connecting tube and the sealing plate and is inserted on the sealing plate to provide a discharge port.

[0014] Furthermore, a second transverse partition is provided between the second connecting pipe and the first discharge pipe, and a plurality of through holes are provided on the second partition.

[0015] Furthermore, the second discharge pipe includes a second discharge outer tube and a second discharge inner tube, both of which are tubular components made of a second high-temperature material; the second end of the second discharge inner tube passes through the third partition to form a free end, and the first end of the second discharge inner tube passes through the second partition, the second connecting tube, and the sealing plate in sequence and is inserted into the sealing plate; the second discharge outer tube is sleeved on the second discharge inner tube, and the two ends of the second discharge outer tube are respectively abutted against the third partition and the sealing plate.

[0016] Furthermore, the second discharge inner tube is an integrated tube, and the second discharge outer tube includes a first section outer tube and a second section outer tube. The first section outer tube is arranged in the first discharge tube, and its two ends are respectively sealed and abutted with the third partition and the second partition; the second section outer tube is arranged in the second connecting tube, and its two ends are respectively sealed and abutted with the second partition and the sealing plate.

[0017] The beneficial contribution of the present invention is that it effectively solves the above-mentioned problems. The glass liquid discharging device of the present invention is provided with a second heating device on the first discharging pipe. The spiral tube of the second heating device can be used for heating and can also be passed with cooling liquid for cooling treatment, which can meet the temperature conditions required by different processes. In addition, the discharging channel in the first discharging pipe is arranged as a reverse double channel, which is divided into a first discharging channel against the direction of gravity and a second discharging channel along the direction of gravity. The reverse double channel can extend the flow path of the glass liquid, thereby facilitating the natural heat dissipation and cooling of the glass liquid; and the first discharging channel is against the direction of gravity, which is conducive to the overflow of bubbles and the precipitation of impurities, and can play a clarifying role. The glass liquid discharging device of the present invention can balance the discharging cooling demand and the clarification demand, and the dual-function setting of the second heating device can also meet the temperature requirements of different processes. It has strong flexibility and should be vigorously promoted. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a principle cross-sectional view of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the outer tube of the base beam.

[0021] Figure ID:

[0022] Feed pipe 10: feed outer pipe 11, feed inner pipe 12;

[0023] The base beam 20 includes a base beam outer tube 21, a center hole 211, a base beam inner tube 22, a first hole portion 23, a first threaded hole portion 231, a first light hole portion 232, and a second hole portion 24;

[0024] The first discharge pipe 30: a first discharge outer pipe 31 and a first discharge inner pipe 32;

[0025] The first connecting pipe 40 includes a first connecting outer pipe 41, a first connecting inner pipe 42, and a first docking hole 43;

[0026] A first partition plate 51, a second partition plate 52, a third partition plate 53, and a plug 60;

[0027] The second connecting pipe 70 includes a second connecting outer pipe 71, a second connecting inner pipe 72, and a second docking hole 73;

[0028] Sealing plate 80;

[0029] The second discharge pipe 90 includes a second discharge outer pipe 91, a second discharge inner pipe 92, and a discharge port 93;

[0030] The first direction X, the second direction Y, the third direction Z, the first discharge channel L1, and the second discharge channel L2. DETAILED DESCRIPTION

[0031] The following examples are provided to further explain and supplement the present invention and do not constitute any limitation to the present invention.

[0032] like Figure 1 to Figure 3 As shown, the glass liquid discharging device of the present invention includes a first discharging pipe 30, the interior of which provides a discharging channel for the glass liquid to flow out for subsequent processing, such as gas expansion and thinning.

[0033] The outlet for the glass liquid to flow out is the discharge port 93. In order to meet the processing requirements of the subsequent process, the temperature of the glass liquid flowing out of the discharge port 93 is required. In order to meet the temperature requirements, the temperature in the first discharge pipe 30 needs to be controlled.

[0034] In order to meet the temperature regulation requirements of different processes, a second heating device is provided outside the first discharge pipe 30. The second heating device is provided with a spiral tube, which is sleeved outside the first discharge pipe 30 and is spirally distributed along the axial direction of the first discharge pipe 30. The discharge channel can be heated by the second heating device. The second heating device can heat the first discharge pipe 30 by the principle of electromagnetic induction. For example, when the tubular glass furnace is just started, the furnace needs to be heated as a whole. At this time, the second heating device can be started to heat the first discharge pipe to the required temperature. In this way, not only can the temperature difference between the temperature in the first discharge pipe and the temperature of the molten glass liquid be too large to waste too much glass liquid, but also the first discharge pipe is gradually heated during the heating process of the first discharge pipe, which can avoid the high temperature of the first discharge pipe when the high-temperature glass liquid flows over and suddenly applies high temperature to the first discharge pipe, which causes damage to the first discharge pipe, such as causing the internal corundum tube of the first discharge pipe to burst. On the other hand, by heating the first discharge pipe through the second heating device, the first discharge pipe can be preheated to prevent the glass liquid that has just flowed in from losing temperature too quickly, thereby preventing the melted glass liquid from losing fluidity and blocking the flow channel.

[0035] In order to meet the cooling requirements of the process, a coolant is passed through the interior of the spiral tube. To facilitate the arrangement of the coolant inside the spiral tube, the spiral tube is set as a hollow structure, which is made of metal material, and its conductor material can heat the first discharge pipe 30 through the principle of electromagnetic induction. The hollow interior can be set with coolant, and the discharge channel can be cooled by the coolant.

[0036] When the first discharge pipe 30 needs to be heated, the second heating device is started. When the second heating device is working, the first discharge pipe 30 can be heated, so that the temperature in the discharge channel can be adjusted to the required temperature. When heating is not needed, the second heating device is turned off, and the heat is taken away by the cooling liquid in the spiral tube. The cooling liquid in the spiral tube flows continuously and takes away the heat continuously, which is conducive to cooling the glass liquid in the first discharge pipe 30, so as to adjust the temperature of the glass liquid to the required temperature.

[0037] Furthermore, the spiral tube can be a spiral copper tube. The coolant can be water or other liquids.

[0038] By setting the spiral tube as a hollow structure and setting the coolant, it can be used for both heating and cooling. In actual production, the corresponding function can be turned on as needed to meet the needs of different temperature regulation in different production processes.

[0039] The first discharge pipe 30 may be a single-tube structure or a double-layer sleeve structure.

[0040] In some embodiments, the first discharge pipe 30 is a single-tube structure, which is a tubular component made of a first high-temperature material. In order to meet the high temperature resistance requirements and the electromagnetic induction heating requirements, the first high-temperature material is a non-metallic high-temperature resistant material containing carbon elements, which mainly includes graphite materials, silicon carbide materials, and silicon carbide-graphite composite materials. In the present invention, the first high-temperature material is a graphite material with a lower cost, and the tubular component made of the first high-temperature material is a graphite tube. In other embodiments, the first high-temperature material can also be made of silicon carbide, silicon carbide-graphite composite materials, etc., which have a slightly higher cost.

[0041] In this embodiment, the first discharge pipe 30 is preferably a double-layer sleeve structure, which includes a first discharge outer pipe 31 and a first discharge inner pipe 32. The first discharge outer pipe 31 is sleeved outside the first discharge inner pipe 32. The first discharge outer pipe 31 is an integral tubular component made of a first high-temperature material, and the first discharge inner pipe 32 is an integral tubular component made of a second high-temperature material. The second high-temperature material is different from the first high-temperature material.

[0042] In this embodiment, the second high temperature material is a corundum material (mainly composed of Al2O3), and the tubular component made of the second high temperature material is a corundum tube. When the first discharge tube 30 is a double-layer sleeve structure, the outer first discharge outer tube 31 is a graphite tube, and the inner first discharge inner tube 32 is a corundum tube.

[0043] By setting the first discharge pipe 30 as a double-layer sleeve structure, not only can the high-temperature oxidation of the graphite tube be avoided, but also the graphite particles of the graphite tube can be prevented from falling into the glass liquid and affecting the quality of the glass liquid. In this way, the advantages of the graphite tube can be brought into play: high temperature resistance, low cost, and high processing and assembly precision, while the disadvantages of the graphite tube can be avoided: easy high-temperature oxidation and easy slagging at high temperature.

[0044] Furthermore, in order to facilitate clarification and cooling of the molten glass in the discharge channel, the molten glass discharge device of the present invention also includes a second discharge pipe 90 .

[0045] The second discharge pipe 90 is arranged in parallel with the first discharge pipe 30. The first discharge pipe 30 and the second discharge pipe 90 are spaced apart to form a first discharge channel L1. The interior of the second discharge pipe 90 forms a second discharge channel L2.

[0046] The second end of the first discharge pipe 30 is connected to the second end of the second discharge pipe 90 , and the first end of the first discharge pipe 30 and the first end of the second discharge pipe 90 are located on the same side.

[0047] In this embodiment, the second ends of the first discharge pipe 30 and the second discharge pipe 90 are top ends, and the first ends are bottom ends.

[0048] During circulation, the glass liquid can flow from the first end of the first discharge pipe 30 into the first discharge channel L1, then flow into the second discharge channel L2 against the direction of gravity, and flow out from the first end of the second discharge pipe 90. In this way, the glass liquid can be forced to flow through a longer path through the bent discharge channel, which is conducive to the natural heat dissipation and cooling of the glass liquid.

[0049] Moreover, when the glass liquid flows from the first discharge channel L1 to the second discharge channel L2 against the direction of gravity, it is also conducive to the clarification of the glass liquid: if there are bubbles in the glass liquid, the bubbles in the first discharge channel L1 will float up with the flow of the glass liquid, and will overflow at the highest position to defoam, thereby eliminating the bubbles in the glass liquid and improving the quality of the glass liquid in the second discharge channel L2. In addition, if the glass liquid is mixed with incompletely melted particulate impurities (such as glass raw materials or other impurities), under the action of gravity, the impurities are more likely to sink to the bottom, so that they are deposited at the bottom of the first discharge channel L1, and avoid flowing into the second discharge channel L2 as much as possible, thereby improving the quality of the glass liquid in the second discharge channel L2. Therefore, by making the glass liquid flow from the first discharge channel L1 to the second discharge channel L2 against the direction of gravity, the clarification effect of the glass liquid can be improved and the quality of the glass liquid can be improved.

[0050] The present invention forms a reverse bidirectional flow channel by setting a second discharge pipe 90 in the first discharge pipe 30, which can extend the flow path of the glass liquid in the smallest possible space, thereby facilitating the heat dissipation and cooling of the glass liquid; in addition, the glass liquid first flows upward against gravity and then flows downward, which is also more conducive to the clarification of the glass liquid.

[0051] In order to facilitate the installation of the second discharge pipe 90 in the first discharge pipe 30 and prevent the second discharge pipe 90 from shaking, a third partition plate 53 is provided between the first discharge pipe 30 and the second discharge pipe 90. The third partition plate 53 is provided with a through hole for the glass liquid to flow through.

[0052] The third partition plate 53 is in direct contact with the glass liquid and is made of the second high temperature material. In this embodiment, the third partition plate 53 is a corundum plate with holes.

[0053] The second end of the second discharge pipe 90 passes through the third partition plate 53 and extends out of the first discharge pipe 30 to form a free end. The second end of the second discharge pipe 90 is open and communicates with the interior of the first discharge pipe 30, so that the glass liquid can flow from the first discharge channel L1 into the second discharge channel L2.

[0054] In order to support the first discharge pipe 30 , the first discharge pipe 30 is disposed on the base beam 20 along the second direction Y. The first base beam 20 is disposed along the first direction X.

[0055] The first direction X is perpendicular or nearly perpendicular to the second direction Y. In this embodiment, the first direction X is a horizontal direction, and the second direction Y is a vertical direction.

[0056] Furthermore, in order to facilitate the installation of the first discharge pipe 30, a second hole portion 24 is provided on the base beam 20 along the second direction Y. The second hole portion 24 is a through hole. The first end of the first discharge pipe 30 is threadedly connected to the second hole portion 24, the interior of the first discharge pipe 30 is connected to the first hole portion 23, and the first hole portion 23 is connected to the interior of the base beam 20, so that the glass liquid can flow from the interior of the base beam 20 into the first discharge channel L1.

[0057] In order to avoid leakage and improve the quality of the molten glass, a second connecting tube 70 is provided in the second hole 24. The second connecting tube 70 is provided along the second direction Y, and connects the first discharge tube 30 and the inside of the base beam 20. When the molten glass flows out from the inside of the base beam 20, it first flows into the inside of the second connecting tube 70, and then flows into the inside of the first discharge tube 30.

[0058] In order to prevent glass liquid from leaking and ensure that the glass liquid flows from the second connecting pipe 70 only to the inside of the first discharge pipe 30 , a sealing plate 80 is provided at the end of the second connecting pipe 70 opposite to the first discharge pipe 30 .

[0059] The sealing plate 80 seals the end of the second connecting tube 70 away from the first discharge tube 30 , so that the molten glass can flow from the inside of the second connecting tube 70 to the inside of the first discharge tube 30 .

[0060] The sealing plate 80 is in direct contact with the glass liquid, so it is made of the second high temperature material. In this embodiment, it is a corundum tube.

[0061] The first end of the second discharge pipe 90 passes through the second connecting pipe 70 and the sealing plate 80 and is inserted on the sealing plate 80, and the first end of the second discharge port 93 provides the discharge port 93. In this embodiment, the first end of the second discharge pipe 90 is located on the sealing plate 80, and the mating position forms a seal. In addition, even if the processing accuracy is not enough to form a seal between the first end of the second discharge pipe 90 and the sealing plate 80, the glass liquid will block the gap when it flows into the gap, forming a sealing effect.

[0062] A second docking hole 73 is provided on the side wall of the second connecting tube 70, and the second docking hole 73 is connected to the inside of the base beam 20. Specifically, a center hole 211 is provided inside the base beam 20, and the second docking hole 73 corresponds to the center hole 211. The glass liquid flows into the second connecting tube 70 through the second docking hole 73, and then flows to the first discharge channel L1, flows upward against gravity in the first discharge channel L1, and then enters the second discharge channel L2, flows downward along the direction of gravity in the second discharge channel L2, and then flows out from the discharge port 93 of the second discharge tube 90.

[0063] The second connecting pipe 70 can be a single-tube structure or a double-tube structure.

[0064] When the first discharge pipe 30 is a single-tube structure, the second connecting pipe 70 is preferably a single-tube structure, which is an integral tubular component made of a first high-temperature material, such as a graphite tube.

[0065] In this embodiment, the first discharge pipe 30 is a double-layer sleeve structure, and the second connecting pipe 70 is also set to a double-layer sleeve structure, which includes a second connecting outer tube 71 and a second connecting inner tube 72. The second connecting outer tube 71 is sleeved outside the second connecting inner tube 72. Among them, the second connecting outer tube 71 is an integral tubular component made of a first high-temperature material, and the second connecting inner tube 72 is an integral tubular component made of a second high-temperature material. In this embodiment, the second connecting outer tube 71 is a graphite tube, and the second connecting inner tube 72 is a corundum tube.

[0066] Correspondingly, through holes are respectively provided at corresponding positions of the second connecting outer tube 71 and the second connecting inner tube 72 to form the second docking hole 73 .

[0067] The second connecting tube 70 is configured as a double-layer sleeve structure, also to prevent the graphite tube from being oxidized at high temperature and to prevent the graphite particles of the graphite tube from entering the glass liquid.

[0068] In addition, setting the pipe fittings of the discharge part in the form of a segmented first discharge pipe 30 and a second connecting pipe 70 is not only conducive to reducing costs, but also conducive to installation, as well as disassembly and replacement of parts and reuse of the feed pipe 10. It is generally known that the longer the length of the graphite tube, the higher the cost. The cost of one first discharge outer tube 31 and one second connecting outer tube 71 is lower than that of a whole tube of equivalent length. Therefore, this structure can reduce costs. In addition, if disassembly and assembly is required (during maintenance), the first discharge pipe 30 can be removed first, and then the second connecting pipe 70 can be disassembled and assembled separately. Even if the second connecting pipe 70 is stuck inside the base beam 20 and cannot be removed, only the second connecting pipe 70 can be broken, so that the first discharge pipe 30 can be reused, which can reduce production costs.

[0069] Furthermore, in order to improve the clarification effect of the glass liquid and prolong the flow time of the glass liquid to cool down naturally, a second transverse partition 52 is provided between the second connecting pipe 70 and the first discharge pipe 30 .

[0070] The second partition plate 52 is provided with a plurality of through holes through which the glass liquid can flow. The second partition plate 52 can provide a certain barrier effect on the glass liquid, reduce the flow speed of the glass liquid, so that the glass liquid slowly flows to the first discharge channel L1, which can prolong the flow time and facilitate natural heat dissipation and cooling. In addition, the second partition plate 52 has a barrier effect on impurities. Impurities that collide with the second partition plate 52 cannot flow upward, but will sink to the bottom, thereby facilitating the impurities to be deposited in the second connecting pipe 70.

[0071] The second partition plate 52 is in direct contact with the glass liquid, so it is made of the second high temperature material. In this embodiment, the second partition plate 52 is a corundum plate with holes.

[0072] During installation, the second partition plate 52 is clamped between the first discharge pipe 30 and the second connecting pipe 70, so that the position is fixed.

[0073] The second discharge pipe 90 can be a single-tube structure or a double-layer sleeve structure.

[0074] In some embodiments, the second discharge pipe 90 is a single-tube structure, which is an integrated tubular component made of the second high-temperature material. The second end of the second discharge pipe 90 passes through the third partition plate 53 to extend to a free end, and the first end of the second discharge pipe 90 passes through the second partition plate 52, the second connecting pipe 70, and the sealing plate 80 in sequence to be connected to the sealing plate 80.

[0075] In this embodiment, the second discharge pipe 90 is a double-layer sleeve structure, which includes a second discharge inner pipe 92 and a second discharge outer pipe 91. The second discharge outer pipe 91 is sleeved outside the second discharge inner pipe 92. The second discharge outer pipe 91 and the second discharge inner pipe 92 are both in direct contact with the glass liquid, and are both tubular components made of the second high-temperature material. In this embodiment, they are both corundum tubes.

[0076] The second end of the second discharge inner tube 92 passes through the third partition plate 53 and extends into the first discharge tube 30 to form a free end, and the first end of the second discharge inner tube 92 passes through the second partition plate 52, the second connecting tube 70, and the sealing plate 80 in sequence and is inserted into the sealing plate 80. The second discharge inner tube 92 is an integrated tube.

[0077] The second discharge outer pipe 91 can be an integral pipe or a segmented pipe.

[0078] When the second discharge outer tube 91 is an integrated tube, two ends thereof are respectively abutted between the third partition plate 53 and the sealing plate 80 .

[0079] When the second discharge outer tube 91 is a segmented tube, it can be divided into two sections, with both ends of one section abutting between the third partition plate 53 and the second partition plate 52 , and both ends of the other section abutting between the second partition plate 52 and the sealing plate 80 .

[0080] The second discharge outer tube 91 is disposed in contact with the third partition 53 and the sealing plate 80 and the second partition 52, which is conducive to the installation of the third partition 53. Specifically, the second end of the second discharge outer tube 91 can provide support for the installation of the third partition 53, so that the third partition 53 can be overlapped on the end of the second discharge outer tube 91 without the need for an additional positioning step structure. The second discharge inner tube 92 is inserted into the third partition 53 and is sleeved inside the second discharge outer tube 91. In this way, the positioning of each component can be achieved through a simple assembly structure without the need for additional fasteners, and the stability of the structure can be maintained by relying on its own structure. Moreover, the double-layer structure is more conducive to improving the life of the second discharge tube 90, avoiding high-temperature erosion of the inner and outer surfaces of the same pipe fitting, thereby improving the service life.

[0081] Furthermore, the second end of the first discharge pipe 30 is sealed, and it can be sealed by a sealing component, or the second end of the first discharge pipe 30 itself can be left open and formed as a closed end.

[0082] Thus, the glass liquid discharging device of the present invention is formed. When the glass liquid flows into the second connecting pipe 70 from the base beam 20, the first discharging pipe 30 and the second discharging pipe 90 are coaxially arranged at intervals, and the interior of the first discharging pipe 30 is divided into a first discharging channel L1 and a second discharging channel L2 that are connected. The glass liquid will flow from the second connecting pipe 70 to the first discharging channel L1 against the direction of gravity, and flow against the direction of gravity in the first discharging channel L1 to facilitate the overflow of bubbles and the precipitation of impurities, thereby clarifying the glass liquid; the clarified glass liquid flows into the second discharging channel L2, and flows to the discharge port 93 along the direction of gravity in the second discharging channel L2. The discharging channel that is arranged by reverse bending can extend the flow path of the glass liquid, thereby facilitating the natural heat dissipation and cooling of the glass liquid. If the first discharging pipe 30 needs to be heated, it can be heated by the second heating device to heat the temperature to the required temperature; if heating is not required, the cooling can be assisted by the cooling liquid in the spiral tube. The dual-function design of the spiral tube allows it to meet both heating and cooling requirements, thus being able to flexibly respond to different process requirements.

[0083] The glass liquid discharging device of the present invention can be combined with the following feeding structure to form a complete tubular glass furnace device:

[0084] A feed pipe 10 is arranged on the base beam 20 along the second direction Y. The feed pipe 10 is arranged parallel to and spaced from the first discharge pipe 30. Glass raw materials can be fed from the feed pipe 10, melted into glass liquid at high temperature in the feed pipe 10, and then flow to the glass liquid discharge device of the present invention through the base beam 20.

[0085] The base beam 20 and the feed pipe 10 are both tubular components, and thus are easy to assemble and install without the need for on-site masonry.

[0086] In some embodiments, the feed pipe 10 and the base beam 20 are single-tube structures, which are tubular components made of the first high-temperature material. The base beam 20 can be an integrated tubular component, or a tubular component formed by multiple sections of pipes fixedly connected together by a fastening structure or fasteners. When the base beam 20 is a segmented tubular component, it is preferably arranged to be spliced ​​at the position where the feed pipe 10 and the first discharge pipe 30 need to be connected, so that it is convenient to connect the feed pipe 10 and the first discharge pipe 30. For example, when the first hole portion 23 and the second hole portion 24 are provided on the base beam 20 to connect the feed pipe 10 and the first discharge pipe 30, the segmented portion of the base beam can be provided at the first hole portion 23 and / or the second hole portion 24, and the first hole portion 23 and / or the second hole portion 24 are matched by matching the two-section structure, and the matching portions are fixedly connected by fasteners.

[0087] In this embodiment, the feed pipe 10 and the base beam 20 are double-layer sleeve structures:

[0088] The feed pipe 10 includes an outer feed pipe 11 and an inner feed pipe 12, wherein the outer feed pipe 11 is sleeved outside the inner feed pipe 12;

[0089] The base beam 20 includes a base beam outer tube 21 and a base beam inner tube 22 , and the base beam outer tube 21 is sleeved outside the base beam inner tube 22 .

[0090] When the feed pipe 10 and the base beam 20 are double-layer sleeve structures, the feed outer pipe 11 and the base beam outer pipe 21 are tubular components made of a first high-temperature material, and the feed inner pipe 12 and the base beam inner pipe 22 are tubular components made of a second high-temperature material.

[0091] Furthermore, the feed outer tube 11, the base beam outer tube 21, the feed inner tube 12, and the base beam inner tube 22 are all one-piece tubes. Of course, they can also be segmented tubes instead of one-piece tubes. For example, the base beam outer tube 21 and the base beam inner tube 22 can be set as segmented tubes, and the overall structure is formed by assembling multiple sections together. For the convenience of explanation, the present embodiment preferably describes the feed tube outer tube 11, the base beam outer tube 21, the first discharge outer tube 31, the feed inner tube 12, the base beam inner tube 22, and the first discharge inner tube 32 as one-piece tubes.

[0092] By setting the feed tube 10 and the base beam 20 as a double-layer sleeve structure, not only can the high-temperature oxidation of the graphite tube be avoided, but also the graphite particles of the graphite tube can be prevented from falling into the glass liquid and affecting the quality of the glass liquid. In this way, the advantages of the graphite tube can be brought into play: high temperature resistance, low cost, and high processing and assembly accuracy, while the disadvantages of the graphite tube can be avoided: easy high-temperature oxidation and easy slag falling at high temperature.

[0093] When the first discharge pipe 30 is configured as a single-tube structure, the feed pipe 10 and the base beam 20 are preferably configured as single-tube structures. Correspondingly, when the first discharge pipe 30 is configured as a double-layer sleeve structure, the feed pipe 10 and the base beam 20 are preferably configured as double-layer sleeve structures.

[0094] When the feed tube 10, the base beam 20, and the first discharge tube 30 are single-tube structures, they are suitable for producing special glass, such as microcrystalline glass. At this time, the graphite particles of the graphite tube fall into the glass liquid, which helps the production of microcrystalline glass. Therefore, the graphite tube can directly contact the glass liquid without the need to set a corundum tube inside the graphite tube.

[0095] For the production of conventional ultra-thin glass, the feed tube 10, the base beam 20, and the first discharge tube 30 are preferably set as a double-layer sleeve structure: a graphite tube is used as an outer tube, a corundum tube is used as an inner tube, and a corundum tube is sleeved inside the graphite tube. In other embodiments, when the selection of the first high-temperature material changes, it can be adaptively adjusted.

[0096] Further, when the base beam inner tube 22 is disposed in the base beam outer tube 21, the base beam inner tube 22 is disposed along a third direction Z, and the third direction Z may be the same as the first direction X, or may be different from the first direction X. For example, in some embodiments, the base beam inner tube 22 is disposed horizontally, and the third direction Z is the same as the first direction X. For another example, in some embodiments, the base beam inner tube 22 is disposed at a certain angle relative to the horizontal plane, and the third direction Z is inclined with respect to the first direction X.

[0097] The base beam outer tube 21 is arranged horizontally along the first direction X, which is convenient for setting the feed pipe 10 and the first discharge pipe 30. The base beam inner tube 22 is arranged along the third direction Z, so that the flow direction of the glass liquid can be flexibly set according to needs, so that the glass liquid does not have to flow into the first discharge pipe 30 in the horizontal direction.

[0098] Furthermore, the base beam 20 is connected to the feed pipe 10 by threads. A first hole portion 23 is provided on the base beam 20 along the second direction Y. The first hole portion 23 is a through hole, which is spaced a certain distance from the second hole portion 24.

[0099] The first end of the feed pipe 10 is threadedly connected to the first hole portion 23 , and the feed pipe 10 is parallel and spaced apart from the first discharge pipe 30 .

[0100] When the feed pipe 10, the first discharge pipe 30, and the base beam 20 are double-layer sleeve structures, external threads can be processed on the first ends of the feed outer tube 11 and the first discharge outer tube 31, and corresponding internal threads can be processed at the first hole portion 23 and the second hole portion 24, so that the feed outer tube 11 and the first discharge outer tube 31 are threadedly connected to the first hole portion 23 and the second hole portion 24.

[0101] Since the graphite tube has a high processing precision, the feed pipe 10, the base beam 20 and the first discharge pipe 30 can be stably connected together through threaded connection.

[0102] Furthermore, in order to save space, the feed pipe 10 and the first discharge pipe 30 are arranged on the same side of the base beam 20, and the base beam 20 is transversely connected to the bottom of the feed pipe 10 and the first discharge pipe 30. Of course, in other embodiments, the feed pipe 10 and the first discharge pipe 30 can also be arranged on different sides of the base beam 20.

[0103] Furthermore, in order to facilitate the insertion of the base beam inner tube 22 into the base beam outer tube 21, a center hole 211 is provided in the base beam outer tube 21. The center hole 211 is extended from the first end of the base beam outer tube 21 along the third direction Z, passes through the first hole portion 23 and is connected to the second hole portion 24.

[0104] The base beam inner tube 22 may be inserted into the central hole 211 from the first end of the base beam outer tube 21 , so as to be assembled inside the base beam outer tube 21 .

[0105] In order to prevent the glass liquid from flowing out from the central hole 211 and causing leakage, a first connecting tube 40 is provided in the first hole portion 23 along the second direction Y. A first docking hole 43 is provided at a portion of the first connecting tube 40 away from the first end of the base beam 20. A solid structure is provided at a position corresponding to the first docking hole 43, which can block the central hole 211, so that the glass liquid flowing into the first connecting tube 40 cannot flow out from the first end of the base beam 20, but can only flow to the base beam inner tube 22 through the first docking hole 43.

[0106] During installation, the second connecting tube 70 can be first installed into the second hole portion 24, and the second docking hole 73 can be aligned with the center hole 211, and then the base beam inner tube 22 can be inserted from the first end of the base beam 20 into the center hole 211, and the first end of the base beam inner tube 22 can not extend into the range of the first hole portion 23; then the first connecting tube 40 can be installed into the first hole portion 23, and the first docking hole 43 can be directed toward the base beam inner tube 22 and aligned with the center hole 211, and then the base beam inner tube 22 can be moved along the third direction Z, so that the first end of the base beam inner tube 22 can be inserted into the first docking hole 43 and connected with the first docking hole 43. Preferably, the two ends of the base beam inner tube 22 extend into the first connecting tube 40 and the second connecting tube 70 respectively.

[0107] Thus, when the high-temperature glass liquid flows into the first connecting tube 40, it can flow to the base beam inner tube 22, flow to the second connecting tube 70 through the base beam inner tube 22, and then flow to the first discharge channel L1, while the rest of the positions are sealed and cannot flow out.

[0108] The first connecting pipe 40 may be a single-tube structure or a double-tube structure.

[0109] When the feed pipe 10, the base beam 20, and the first discharge pipe 30 are single-tube structures, the first connecting pipe 40 is preferably a single-tube structure, which is a tubular component made of a first high-temperature material, such as a graphite tube.

[0110] In this embodiment, the feed pipe 10, the base beam 20, and the first discharge pipe 30 are double-layer sleeve structures, and the first connecting pipe 40 is also set to a double-layer sleeve structure, which includes a first connecting outer tube 41 and a first connecting inner tube 42. The first connecting outer tube 41 is sleeved outside the first connecting inner tube 42. Among them, the first connecting outer tube 41 is an integrated tubular component made of a first high-temperature material, and the first connecting inner tube 42 is an integrated tubular component made of a second high-temperature material. In this embodiment, the first connecting outer tube 41 is a graphite tube, and the first connecting inner tube 42 is a corundum tube.

[0111] Correspondingly, through holes are respectively provided at corresponding positions of the first connecting outer tube 41 and the first connecting inner tube 42 to form the first docking hole 43 .

[0112] In this embodiment, the first connecting tube 40 is configured as a double-layer sleeve structure, also to prevent the graphite tube from being oxidized at high temperature and the graphite particles of the graphite tube from entering the glass liquid.

[0113] In addition, setting the pipe fittings of the feed part in the form of a segmented feed pipe 10 and a first connecting pipe 40 is not only conducive to reducing costs, but also conducive to installation, as well as disassembly and replacement of parts and reuse of the feed pipe 10. It is well known that the longer the length of the graphite tube, the higher the cost. The cost of one feed outer tube 11 and one first connecting outer tube 41 is lower than that of a whole tube of equivalent length. Therefore, this structure can reduce costs. In addition, if disassembly and assembly is required (during maintenance), the feed pipe 10 can be removed first, and then the first connecting pipe 40 can be disassembled and assembled separately. Even if the first connecting pipe 40 is stuck inside the base beam 20 and cannot be removed, only the first connecting pipe 40 can be broken, so that the feed pipe 10 can be reused, which can reduce the overall cost.

[0114] Furthermore, in order to fully melt the glass raw material in the feed pipe 10, a first partition plate 51 is provided in the first hole portion 23. The first partition plate 51 is transversely arranged between the feed pipe 10 and the first connecting pipe 40, and is provided with a plurality of through holes for the glass liquid to flow through. The first partition plate 51 is made of a second high temperature material, and in this embodiment, it is a corundum plate.

[0115] The first partition plate 51 can slow down the speed of the glass liquid flowing downward, thereby prolonging the time that the glass raw materials stay in the feed pipe 10. In this way, the glass raw materials can stay in the feed pipe 10 for a longer time, so that they are melted at high temperature in the feed pipe 10, avoiding incomplete melting of the raw materials and flowing into the next process.

[0116] Further, for easy installation, the first hole portion 23 is set to a stepped hole form, which includes a first threaded hole portion 231 and a first light hole portion 232. The diameter of the first light hole portion 232 is smaller than the diameter of the first threaded hole portion 231 to form a stepped hole. The center hole 211 vertically penetrates the first light hole portion 232.

[0117] Furthermore, the first connecting tube 40 is sleeved in the first light hole portion 232 , the first partition plate 51 is disposed in the first threaded hole portion 231 and abuts against the first light hole portion 232 , and the first end of the feeding tube 10 is threadedly connected to the first threaded hole portion 231 .

[0118] Further, a plug 60 is provided at one end of the first hole portion 23 opposite to the feed pipe 10. The plug 60 can block the first hole portion 23 and can be opened to discharge slag when necessary. The plug 60 is sealed and connected to the first hole portion 23, and an openable plug structure is provided on it. When it is necessary to clean the slag in the first connecting pipe 40, the plug 60 can be opened to discharge the slag.

[0119] Of course, the glass liquid discharge device of the present invention is not limited to the above-mentioned feeding structure. It is used as an optimal demonstration to illustrate the overall structure and principle of the tubular glass furnace to help understand the position and use of the glass liquid discharge device of the present invention in the entire glass furnace.

[0120] The glass liquid discharging device of the present invention is mainly used in the clarification process of glass liquid production, that is, after the glass raw materials are melted at high temperature, they are melted into glass liquid. Before the glass liquid is discharged to form a glass ribbon, it is necessary to clarify and cool the glass liquid so that the glass liquid can meet the requirements of subsequent processes. The glass liquid discharging device of the present invention can cool and clarify the high-temperature molten glass liquid, so that the glass liquid can be cooled and clarified, thereby meeting the discharging requirements.

[0121] In addition, it should be noted that the heating function of the second heating device is turned on according to the process requirements. It can heat the first discharge pipe 30, which does not mean that the first discharge pipe 30 must be heated during discharge. Regardless of whether the second heating device is turned on or not, the reverse dual-channel discharge channel inside the first discharge pipe 30 can extend the flow path of the glass liquid, which is beneficial to the natural heat dissipation and cooling of the glass liquid. Therefore, compared with the prior art, it must have a technical effect that is beneficial to cooling; and the cold zone liquid in the spiral tube can further improve the cooling effect on the basis of cooling by extending the path. Flowing against the direction of gravity in the first discharge channel L1 is beneficial to the clarification of the glass liquid. Therefore, the hollow spiral tube structure of the second heating device is mainly used to flexibly adjust the actual temperature according to the process requirements, so that the temperature of the first discharge pipe can be flexibly adjusted as needed.

[0122] Although the present invention is disclosed through the above embodiments, the scope of the present invention is not limited thereto, and the above components may be replaced with similar or equivalent elements known to those skilled in the art without departing from the concept of the present invention.

Claims

1. A glass liquid discharging device, characterized in that: It comprises a first discharge pipe (30), the interior of the first discharge pipe (30) provides a discharge channel for the circulation of glass liquid, a second heating device is arranged outside the first discharge pipe (30), the second heating device comprises a spiral tube, the spiral tube is sleeved on the first discharge pipe (30) and can heat the first discharge pipe (30); the spiral tube is a hollow structure, a cooling liquid flows inside the spiral tube, and the first discharge pipe (30) can be cooled by the cooling liquid.

2. The glass liquid discharging device as claimed in claim 1, characterized in that: The first discharge pipe (30) is a tubular component made of a first high-temperature material.

3. The glass liquid discharging device according to claim 2, characterized in that: The first discharge pipe (30) comprises a first discharge outer pipe (31) and a first discharge inner pipe (32); the first discharge outer pipe (31) is sleeved outside the first discharge inner pipe (32); the first discharge outer pipe (31) is a tubular component made of a first high-temperature material, and the first discharge inner pipe (32) is a tubular component made of a second high-temperature material; the second high-temperature material is different from the first high-temperature material.

4. The glass liquid discharging device according to claim 1, characterized in that: The invention further comprises a second discharge pipe (90), wherein the second discharge pipe (90) is arranged in parallel inside the first discharge pipe (30), the first discharge pipe (30) and the second discharge pipe (90) are spaced apart to form a first discharge channel L (1), and the interior of the second discharge pipe (90) forms a second discharge channel L (2). The second end of the first discharge pipe (30) is connected to the second end of the second discharge pipe (90); The glass liquid can flow into the first discharge channel L(1) from the first end of the first discharge pipe (30), then flow into the second discharge channel L(2) against the direction of gravity and flow out from the first end of the second discharge pipe (90) along the direction of gravity.

5. The glass liquid discharging device according to claim 4, characterized in that: A third partition plate (53) is provided between the first discharge pipe (30) and the second discharge pipe (90), and a through hole is provided on the third partition plate (53). The second end of the second discharge pipe (90) passes through the third partition plate (53) and extends to form a free end. The second end of the second discharge pipe (90) is connected to the interior of the first discharge pipe (30).

6. The glass liquid discharging device according to claim 4, characterized in that: The first discharge pipe (30) is arranged on the base beam (20) along the second direction Y, and the base beam (20) is arranged along the first direction X; A second hole portion (24) is provided on the base beam (20) and is arranged along a second direction Y. The first end of the first discharge pipe (30) is threadedly connected to the second hole portion (24). The interior of the first discharge pipe (30) is connected to the interior of the base beam (20) through the second hole portion (24).

7. The glass liquid discharging device according to claim 6, characterized in that: A second connecting pipe (70) is provided in the second hole portion (24) and is arranged along a second direction Y, and the second connecting pipe (70) is connected to the first discharge pipe (30) and the inside of the base beam (20); A sealing plate (80) is provided at the end of the second connecting tube (70) opposite to the first discharge tube (30), and the first end of the second discharge tube (90) passes through the second connecting tube (70) and the sealing plate (80) and is inserted on the sealing plate (80) to provide a discharge port (93).

8. The glass liquid discharging device according to claim 7, characterized in that: A transverse second partition plate (52) is provided between the second connecting pipe (70) and the first discharge pipe (30), and a plurality of through holes are provided on the second partition plate (52).

9. The glass liquid discharging device according to claim 8, characterized in that: The second discharge pipe (90) comprises a sleeved second discharge outer pipe (91) and a second discharge inner pipe (92), wherein the second discharge outer pipe (91) and the second discharge inner pipe (92) are both tubular components made of a second high-temperature material; The second end of the second discharge inner tube (92) passes through the third partition plate (53) to form a free end, and the first end of the second discharge inner tube (92) passes through the second partition plate (52), the second connecting tube (70), and the sealing plate (80) in sequence to be inserted into the sealing plate (80); The second material discharge outer tube (91) is sleeved on the second material discharge inner tube (92), and two ends of the second material discharge outer tube (91) are respectively in contact with the third partition plate (53) and the sealing plate (80).

10. The glass liquid discharging device according to claim 9, characterized in that: The second discharge inner tube (92) is an integrated tube, and the second discharge outer tube (91) comprises a first section outer tube and a second section outer tube. The first section outer tube is arranged in the first discharge tube (30), and its two ends are respectively in sealing contact with the third partition plate (53) and the second partition plate (52); The second section of the outer tube is arranged in the second connecting tube (70), and its two ends are respectively in sealing contact with the second partition plate (52) and the sealing plate (80).

Images