A high-generation float glass furnace and melting process

Abstract

The invention discloses a high-generation float glass kiln and a melting process, and relates to the technical field of glass manufacturing. The kiln comprises a melting part and a clarification part which are connected in sequence. The width of the clarification part is smaller than that of the melting part, and a kiln sill is arranged between the clarification part and the melting part; a plurality of electrodes A are arranged on the pool wall and / or the pool bottom of the melting part and a plurality of firing gun holes are arranged on the breast wall for installing firing guns; the clarification part and the melting part are separated by the kiln sill, and during the melting process, the liquid flow which is mainly in the silicate formation and glass formation process is controlled in the melting part, and the liquid flow which is in the clarification process is controlled in the clarification part; the batch material is preliminarily melted in the melting part, and the pre-melted glass liquid enters the clarification part through the kiln sill for high-temperature clarification, and then enters the channel through the liquid flow hole for graded homogenization and cooling, so that the electronic display glass melting without a platinum channel can be realized, and the service life of the kiln and the glass liquid melting effect are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of glass manufacturing, and in particular to a high-generation float electronic display glass kiln. Background Art

[0002] Electronic display glass is alkali-free, high-silicon, high-aluminum borosilicate glass. The difficulties in its melting process are: high melting temperature, high viscosity of glass liquid, and difficulty in clarifying and degassing. To solve these problems, the industry has adopted a melting mode of pre-melting in the kiln and fine melting in the platinum channel. The task of the kiln is to preliminarily melt the batch material, and the pre-melted glass liquid with good quality enters the platinum channel from the bottom of the kiln for clarification, homogenization, and cooling.

[0003] The electronic display glass furnace adopts a flame-electric mixed heating mode of pure oxygen combustion and electrode heating. Usually there is only a melting pool but no working pool. The platinum channel is divided into functional sections such as the lifting section, clarification section, stirring section, cooling section, and feeding section. The heating method is to heat platinum or platinum-rhodium alloy by electricity.

[0004] The main reason for using platinum channels is that they can heat the glass liquid after being powered on, and they have certain mechanical strength at high temperatures and do not pollute the glass liquid. However, platinum channels are prone to creep collapse or breakage during the process of high-temperature clarification of the glass liquid, and their service life is usually only 2-3 years. In the production of high-generation electronic display glass, the service life of platinum channels will be shorter due to the reasons that the coarser diameter of the platinum channel is more prone to creep collapse, and the larger flow rate of the glass liquid is more prone to erosion and breakage. In addition, the thicker the diameter of the platinum channel, the more likely it is to cause uneven heating of the glass, affecting the quality of the glass.

[0005] The service life of the platinum channel and the kiln is seriously mismatched, and the investment is high, often hundreds of millions of yuan, which seriously restricts the cost reduction and efficiency improvement of electronic display glass manufacturers. How to reduce investment while extending the service life of the production line has become a long-term consideration for electronic display glass manufacturers. Summary of the invention

[0006] The purpose of the present invention is to provide a high-generation float glass furnace for electronic display, which solves the following technical problems:

[0007] How to improve the service life and melting effect of high-generation float glass furnaces for electronic display.

[0008] The purpose of the present invention can be achieved through the following technical solutions:

[0009] A high-generation float glass furnace for electronic display includes a melting part and a clarifying part connected in sequence, wherein the width of the clarifying part is smaller than that of the melting part, and a kiln sill is arranged between the clarifying part and the melting part; a plurality of electrodes A are arranged on the pool wall and / or pool bottom of the melting part and the clarifying part, and a plurality of firing gun holes are arranged on the breast wall for installing firing guns; and further includes:

[0010] A channel and a flow channel, one end of the channel is connected to the rear gable of the clarification part, and the other end is provided with a docking port, the docking port is connected to the inlet of the flow channel through a docking section, and a gap is reserved between the docking port and the inlet of the flow channel.

[0011] In a further embodiment of the present invention: the docking section includes three U-shaped sealing bricks, with a cover brick on the top; the width of the sealing brick at the bottom of the docking section is consistent with the width of the docking port and the flow channel inlet; the lower edges of the sealing bricks on both sides are on the same horizontal plane as the lower edge of the bottom sealing brick, and the upper edges of the sealing bricks on both sides are on the same horizontal plane as the upper surface of the docking port and the flow channel inlet; the cover brick can be fitted with the upper sides of the sealing bricks on both sides, the docking port and the flow channel inlet.

[0012] In a further embodiment of the present invention: a smoke exhaust hole is provided on the cover brick, and the smoke exhaust hole is located between the docking port and the flow channel inlet.

[0013] In a further solution of the present invention: the sealing bricks are all equipped with top screws around them, and the lower edges of the sealing bricks on both sides are also equipped with top screws to adjust the upper and lower heights of the sealing bricks on both sides.

[0014] In a further embodiment of the present invention, a flue and two or more feeding ports are provided on the front gable of the melting section; and a liquid flow hole is provided on the rear gable of the clarification section for circulating the molten glass.

[0015] In a further embodiment of the present invention: the channel comprises a cooling section 1, a stirring barrel 1, a connecting section, a stirring barrel 2 and a cooling section 2 which are connected in sequence, and the connecting port is connected to the other end of the cooling section 2; electrodes B are installed on the side walls of the cooling section 1, the connecting section and the cooling section 2, and heating wires are installed in the top bricks; electrodes B are also installed on the side walls of the middle and lower parts of the stirring barrels 1 and 2 which are completely covered by the glass liquid, and heating wires are installed inside the bricks in the upper part which are not completely covered by the glass.

[0016] In a further embodiment of the present invention: a discharge hole is provided at the bottom of the mixing barrel 1 and the mixing barrel 2, and a heating wire is installed inside the brick material around the discharge hole; a heating cover is provided at the top of the mixing barrel 1 and the mixing barrel 2.

[0017] In a further embodiment of the present invention: the electrode A is a tin oxide electrode, a molybdenum electrode or a platinum electrode; and the electrode B is a tin oxide electrode.

[0018] A melting process uses the high-generation float glass furnace for electronic display as described above as a melting furnace.

[0019] In a further embodiment of the present invention, pre-production preparation is required before the formal production stage, and the pre-production preparation includes:

[0020] (1) Expansion setting: The connection between the clarification part and the channel is used as a fixed position. The melting part and the clarification part expand toward the feeding port from this point, and the channel expands toward the flow channel.

[0021] (2) Kiln preparation:

[0022] A: The kiln burner is installed at the feeding port of the melting section and the burner holes of the melting section and the clarification section;

[0023] B: Install temporary smoke exhaust equipment on the smoke exhaust hole and connect it to the main smoke duct of the kiln;

[0024] C: Seal mixing tank 1 and mixing tank 2;

[0025] (3) Kiln heating: Use the high-temperature flue gas generated by the burning gun to heat the kiln, and start the temporary flue gas exhaust equipment to drain and exhaust the smoke;

[0026] (4) Preparation of guide plate:

[0027] a: After the melting and clarifying parts are heated up, broken glass and batch materials are added in stages. As the glass liquid level rises, the flow hole is gradually blocked by the glass liquid, and the high-temperature flue gas entering the channel is continuously reduced. At this time, the heating wires of each functional section of the channel are turned on for heat compensation to ensure that the channel temperature is stable or continues to rise to the target temperature;

[0028] b: When establishing the glass liquid level, timely adjust the smoke exhaust volume of the smoke exhaust hole. When the flow hole is completely blocked, stop exhausting and remove the smoke exhaust equipment, seal and insulate the smoke exhaust hole;

[0029] c: When the glass liquid covers the electrode in a certain area, the electrode heating can be started. If there is a corresponding heating wire in this area, the heating wire will be gradually shut down;

[0030] d: When the glass liquid level reaches the target height and the liquid level position is confirmed to be correct through observation through the smoke exhaust hole, the forming guide plate can be used.

[0031] Beneficial effects of the present invention:

[0032] (1) In the float glass furnace for electronic display, the clarification section and the melting section are separated by a furnace sill. During the melting process, the liquid flow mainly in the silicate formation and glass formation stages is controlled in the melting section, and the liquid flow in the clarification process is controlled in the clarification section. The batch material is initially melted in the melting section, and the pre-melted glass liquid with good quality enters the clarification section through the furnace sill for high-temperature clarification, and then enters the channel through the liquid flow hole for graded homogenization and cooling, thereby realizing the melting of electronic display glass without a platinum channel, and greatly improving the service life of the furnace.

[0033] (2) In the float glass furnace of the present invention, the melting section replaces the conventional glass furnace, and the clarification section replaces the platinum channel clarification section. Since refractory materials such as fused zirconium corundum bricks, fused aluminum corundum bricks, and fused high zirconium shrinkage-free bricks can all reach a safe operating temperature of more than 1700°C, there is a great room for adjusting the clarification temperature. The clarification temperature of the furnace can be increased to the maximum extent according to production requirements.

[0034] (3) The float glass furnace of the present invention can optimize and adjust the fuel gas ratio of the burner in the melting section and the clarification section, the distribution of the electric melting power, and the energy ratio of the gas and electricity supply respectively. The melting section and the clarification section can also be adjusted in an integrated manner. The adjustment means are diversified and the best adjustment effect can be achieved according to different working conditions.

[0035] (4) The present invention utilizes the characteristics of long circulation time of glass liquid flow in the kiln and large space occupied by the circulating liquid flow, which greatly improves the time and space of glass liquid, is conducive to the discharge of bubbles in the glass liquid, and can maximize the clarification effect.

[0036] (5) The space of the clarification section in the present invention is much larger than that of the conventional platinum channel clarification section, and it is more resistant to adverse factors affecting clarification. The production process is more stable, and the amount of clarified glass liquid is larger, which has great potential for further increasing production capacity.

[0037] (6) The melting process of the present invention adopts electrode heating. Electrode heating is to use electrodes to energize the glass liquid, relying on the high resistance of the glass liquid to generate heat. Therefore, the glass liquid is heated more evenly, which is conducive to better homogenization and cooling, thereby improving the quality of the glass and providing favorable conditions for subsequent molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present invention will be further described below in conjunction with the accompanying drawings.

[0039] Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention;

[0040] Figure 2 is a schematic diagram of the connection between the docking port and the flow channel inlet through the docking stage in Example 1 of the present invention;

[0041] Figure 3 is a schematic diagram of the state of glass liquid flow in Example 2 of the present invention;

[0042] Figure 4 It is a schematic diagram of electronically displaying the state of a glass furnace and glass liquid flow in the prior art.

[0043] In the figure: 1. Melting section; 2. Clarifying section; 201. Kiln sill; 202. Liquid flow hole; 3. Passage; 301. Cooling section 1; 302. Mixing barrel 1; 303. Connecting section; 304. Mixing barrel 2; 305. Cooling section 2; 306. Docking port; 307. Heating tile; 4. Docking section; 401. Sealing brick; 402. Cover brick; 403. Smoke exhaust hole; 5. Flow channel; 6. Burning gun. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] See also Figure 1 As shown, the present invention is a high-generation float glass furnace for electronic display, comprising a melting part 1, a clarification part 2 and a passage 3 which are connected in sequence.

[0046] The structures of the melting section 1 and the clarification section 2 are similar to conventional glass kilns in the prior art, including structures such as a crown, a breast wall, hook bricks, a front gable, a rear gable, a pool wall, and a pool bottom; a flue and a feeding port are provided on the front gable of the melting section 1, and the number of the feeding ports is not less than 2, and the specific number is determined according to actual application requirements; a kiln sill 201 is provided between the clarification section 2 and the melting section 1 to separate the glass liquid flows of the clarification section 1 and the clarification section 2, thereby stabilizing the liquid flow in the clarification section 2 and avoiding process parameter fluctuations caused by overall changes in the glass liquid flow inside the kiln due to unstable feeding or temperature fluctuations in the melting section 1; at the same time, the kiln sill 201 can also effectively prevent the poorly pre-melted glass liquid in the melting section 1 from entering the clarification section 2 and affecting the clarification effect of the glass liquid.

[0047] Among them, refractory materials such as fused zirconium corundum bricks or fused aluminum corundum bricks are selected for the arch top, breast wall, hook bricks, front gable, rear gable and other parts. Refractory materials such as fused high-zirconium shrinkage-free bricks with high high-temperature resistivity, good corrosion resistance and no contamination of glass liquid by corrosive substances are selected for the pool wall, pool bottom and kiln sill 201 to ensure long-term safe operation in an environment above 1600℃.

[0048] A plurality of electrodes A are provided on the pool wall and / or pool bottom of the melting section 1 and the clarification section 2. The electrodes A may be tin oxide electrodes, molybdenum electrodes or platinum electrodes, etc. The installation method is selected according to the design tonnage of the kiln. Bottom-inserted electrodes, side-wall block-stacked electrodes, or a combination of bottom-inserted electrodes and side-wall block-stacked electrodes may be used. A plurality of firing gun holes are provided on the breast walls of the melting section 1 and the clarification section 2 for installing firing guns 6. Pure oxygen firing guns may be used for the firing guns 6. The width of the clarification section 2 is slightly smaller than that of the melting section 1, in order to prevent the colder glass liquid near the pool wall of the melting section 1 from flowing into the clarification section 2, thereby affecting the glass quality.

[0049] The channel 3 includes a cooling section 1 301, a stirring barrel 1 302, a connecting section 303, a stirring barrel 2 304 and a cooling section 2 305 which are connected in sequence, wherein the cooling section 1 301 is connected to the rear gable of the clarification section 2, and a liquid flow hole 202 is provided on the rear gable of the clarification section 2, and the glass liquid after being clarified well in the clarification section 2 enters the cooling section 1 301 through the liquid flow hole 202; the glass liquid enters the stirring barrel 1 302 after being cooled to a temperature suitable for stirring in the cooling section 1 301, and after being stirred and homogenized in the stirring barrel 1 302, it enters the stirring barrel 2 304 through the connecting section 303 to be stirred and homogenized again, and finally enters the cooling section 2 305 to be cooled to a temperature suitable for tin bath molding.

[0050] Among them, electrodes B are installed on the side walls of cooling section 1 301, connecting section 303 and cooling section 2 305, and heating wires are installed in the top bricks. The heating wires are combined to form heating tiles 307, which can achieve heating compensation during the kiln heating stage.

[0051] Metal stirring rods are installed in both mixing barrel 1 302 and mixing barrel 2 304 to stir and homogenize the glass liquid; the purpose of setting up two mixing barrels is to grade and homogenize the glass liquid; electrodes B are also installed on the side walls of the middle and lower parts of mixing barrel 1 302 and mixing barrel 2 that are completely covered by glass liquid to heat the glass liquid; and heating wires are installed inside the brick material that is not completely covered by glass on the upper part, and the brick material and the heating wire form a heating tile 307 to heat the upper space of mixing barrel 1 302 and mixing barrel 2 304; a discharge hole is provided at the bottom of mixing barrel 1 302 and mixing barrel 2 304, and heating wires are installed inside the brick material around the discharge hole, which is mainly used for discharge and control of discharge amount and to ensure discharge temperature. The top of mixing barrel 1 302 and mixing barrel 2 304 adopts the same structure as the heating cover plate of the mixing barrel used in the industry, that is, the mode of heating after the precious metal skin is wrapped with refractory material, which can avoid the formation of cold spots in the upper space of the mixing barrel and affect the homogenization effect.

[0052] The main bodies of the cooling section 1 301, the stirring barrel 1 302, the connecting section 303, the stirring barrel 2 304 and the cooling section 2 305 are all made of refractory materials such as fused high-zirconium shrinkage-free bricks, which can effectively extend the service life of the channel 3; the electrode B in the channel 3 is a tin oxide electrode because the shape of the tin oxide electrode can be customized according to needs; the channel 3 uses electrode B to heat the glass liquid more evenly, which is beneficial to glass homogenization and facilitates more stable control of the glass liquid flow rate.

[0053] See also Figure 2 , the other end of the channel 3 is also connected to the flow channel 5, wherein the end of the cooling section 2 305 away from the stirring barrel 2 304 is connected to the docking port 306, the docking port 306 is connected to the inlet of the flow channel 5 through the docking section 4, and a gap is reserved between the docking port 306 and the inlet of the flow channel 5; before the kiln is put into normal production, it is necessary to bake and heat up according to a certain heating curve to avoid the bricks from bursting due to rapid cooling and heating. During the heating process, the refractory material will expand. At this time, the gap reserved between the docking port 306 and the inlet of the flow channel 5 can provide a concentrated expansion joint for the expansion to avoid the refractory materials from being squeezed against each other and causing bursting; but the expansion amount cannot be accurately controlled, and it is difficult to ensure accurate fit with the flow channel 5 after the expansion is completed. Therefore, the docking stage 4 is set to seal the gap between the docking port 306 and the flow channel 5 to avoid leakage of glass liquid.

[0054] The docking section 4 includes three U-shaped sealing bricks 401, with a cover brick 402 on the top. The docking port 306 and the entrance of the flow channel 5 are built on the sealing brick 401 at the bottom and a gap is reserved between the two. The width of the sealing brick 401 at the bottom of the docking section 4 is consistent with the width of the docking port 306 and the entrance of the flow channel 5. The lower edges of the sealing bricks 401 on both sides are on the same horizontal plane as the lower edges of the bottom sealing bricks 401, and the upper edges of the sealing bricks 401 on both sides are on the same horizontal plane as the upper surfaces of the docking port 306 and the entrance of the flow channel 5. The cover brick 402 can fit with the upper sides of the sealing bricks 401 on both sides, the docking port 306, and the entrance of the flow channel 5.

[0055] The cover brick 402 is provided with a smoke exhaust hole 403, which is located between the docking port 306 and the inlet of the flow channel 5, and is used to exhaust smoke when the hot air kiln is baked. After the kiln is baked, the smoke exhaust hole 403 needs to be sealed and insulated; in formal production, if necessary, the smoke exhaust hole 403 can be opened to check the internal working condition of the docking section 4; the sealing brick 401 is equipped with top screws all around, which are slightly loose when the kiln is heated to prevent the expansion of the channel 3 and the flow channel 5 from being hindered; after the heating and expansion are completed, all the top screws are tightened to The remaining gap is completely sealed; the lower edges of the sealing bricks 401 on both sides are also installed with top screws to adjust the upper and lower heights of the sealing bricks 401 on both sides; on the one hand, it is to prevent the weight of the cover brick 402 from being completely pressed on the docking port 306 and the inlet of the flow channel 5 during the heating process, thereby affecting the expansion of the channel 3; on the other hand, when the upper edge of the sealing brick 401 is misaligned with the docking port 306 and the inlet of the flow channel 5, it is convenient to adjust the height of the sealing brick 401 to ensure that the cover brick 402 can fit with the docking port 306 and the inlet of the flow channel 5. Example

[0056] See also Figure 3 The present invention discloses a melting process, using the high-generation float glass furnace as a melting furnace, and the process steps are as follows:

[0057] Step 1: Preparation before production

[0058] (1) Expansion setting: The connection between the clarification part 2 and the channel 3 is used as a fixed position, and the melting part 1 and the clarification part 2 expand from this point toward the feeding port, and the channel 3 expands toward the flow channel 5;

[0059] (2) Kiln preparation:

[0060] A: The kiln burner 6 is installed at the feeding port and burner hole of the melting part 1 and the burner hole of the clarification part 2;

[0061] B: Install temporary smoke exhaust equipment on the smoke exhaust hole 403 and connect it to the main smoke duct of the kiln;

[0062] C: Sealing mixing barrel 1 302 and mixing barrel 2 304;

[0063] (3) Kiln heating: Use the high-temperature flue gas generated by the burning gun to heat the kiln, and start the temporary flue gas exhaust equipment to drain and exhaust the smoke;

[0064] (4) Preparation of guide plate:

[0065] a: After the melting part 1 and the clarification part 2 are heated up, broken glass and batch materials are added in stages to establish the liquid level in preparation for normal production; as the glass liquid level rises, the flow hole 202 is gradually blocked by the glass liquid, and the high-temperature flue gas entering the channel 3 is continuously reduced. At this time, the heating wires of each functional section of the channel 3 are turned on for heat compensation to ensure that the temperature of the channel 3 is stable or continues to rise to the target temperature;

[0066] b: When the glass liquid level is established, the smoke exhaust volume of the smoke exhaust hole 403 is adjusted in time. When the liquid flow hole 202 is completely blocked, the smoke exhaust is stopped and the smoke exhaust equipment is removed to avoid affecting the temperature rise of the channel 3; after removing the smoke exhaust equipment, the smoke exhaust hole 403 is sealed and insulated;

[0067] c: When the glass liquid covers the electrode in a certain area, the electrode heating can be started. If there is a corresponding heating wire in this area, the heating wire will be gradually shut down;

[0068] d: When the glass liquid level reaches the target height and the liquid level position is confirmed to be correct through the smoke exhaust hole 403, the forming guide plate can be used.

[0069] Step 2: Production Phase

[0070] According to the distribution ratio of electric energy accounting for more than 50% of the total energy of the melting section and clarification section, the gas ratio of each pair of burners and the power of each group of electrodes are reasonably allocated according to experience, and the temperature system is formulated according to experience to form a preliminary energy distribution system.

[0071] See also Figure 4 In the prior art, platinum channels are used as lifting sections, clarification sections, stirring sections, cooling sections, feeding sections and other functional sections, and platinum (or platinum-rhodium alloy) is energized to generate heat as a heating method; conventional platinum channels are small in size and have poor ability to resist fluctuations in external environmental factors, and the glass clarification effect is easily disturbed. In addition, the platinum channel heats the glass liquid by energizing the platinum body to generate heat, and a temperature difference is easily generated between the glass liquid in contact with the platinum body and the glass liquid in the center of the platinum channel, which will affect the uniformity of the glass liquid temperature.

[0072] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0073] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0074] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A high-generation float glass furnace for electronic display, characterized in that: The invention comprises a melting part (1) and a clarifying part (2) connected in sequence, wherein the width of the clarifying part (2) is smaller than that of the melting part (1), and a kiln sill (201) is provided between the clarifying part (2) and the melting part (1); a plurality of electrodes A are provided on the pool wall and / or pool bottom of the melting part (1) and the clarifying part (2), and a plurality of lance holes are provided on the breast wall for installing lances (6); and the invention further comprises: A channel (3) and a flow channel (5), wherein one end of the channel (3) is connected to the rear gable of the clarification portion (2), and the other end is provided with a docking port (306), the docking port (306) is connected to the inlet of the flow channel (5) via a docking section (4), and a gap is reserved between the docking port (306) and the inlet (305) of the flow channel (5); The docking section (4) comprises three U-shaped sealing bricks (401), with a cover brick (402) on the top; the width of the sealing brick (401) at the bottom of the docking section (4) is consistent with the width of the docking port (306) and the inlet of the flow channel (5); the lower edges of the sealing bricks (401) on both sides are on the same horizontal plane as the lower edge of the bottom sealing brick (401), and the upper edges of the sealing bricks (401) on both sides are on the same horizontal plane as the upper surface of the docking port (306) and the inlet of the flow channel (5); the cover brick (402) can be fitted with the upper sides of the sealing bricks (401) on both sides, the docking port (306), and the inlet of the flow channel (5); The cover brick is provided with a smoke exhaust hole (403), and the smoke exhaust hole (403) is located between the docking port (306) and the inlet of the flow channel (5); The sealing brick (401) is provided with top screws around its periphery, and the lower edges of the sealing bricks (401) on both sides are also provided with top screws for adjusting the upper and lower heights of the sealing bricks (401) on both sides.

2. The high-generation float glass furnace for electronic display according to claim 1, characterized in that: A flue and more than two feeding ports are provided on the front gable of the melting section (1); and a liquid flow hole (202) is provided on the rear gable of the clarification section (2) for circulating the molten glass.

3. The high-generation float glass furnace for electronic display according to claim 1, characterized in that: The channel (3) comprises a cooling section 1 (301), a stirring barrel 1 (302), a connecting section (303), a stirring barrel 2 (304) and a cooling section 2 (305) which are connected in sequence, and the docking port (306) is connected to the other end of the cooling section 2 (305); electrodes B are installed on the side walls of the cooling section 1 (301), the connecting section (303) and the cooling section 2 (305), and heating wires are installed in the top bricks; electrodes B are also installed on the side walls of the middle and lower parts of the stirring barrel 1 (302) and the stirring barrel 2 (304) which are completely covered by glass liquid, and heating wires are installed in the upper bricks which are not completely covered by glass.

4. The high-generation float glass furnace for electronic display according to claim 3, characterized in that: The bottom of the mixing barrel 1 (302) and the mixing barrel 2 (304) is provided with a discharge hole, and a heating wire is installed inside the brick material around the discharge hole; the top of the mixing barrel 1 (302) and the mixing barrel 2 (304) is provided with a heating cover plate.

5. The high-generation float glass furnace for electronic display according to claim 3, characterized in that: The electrode A is a tin oxide electrode, a molybdenum electrode or a platinum electrode; the electrode B is a tin oxide electrode.

6. A melting process, characterized in that: Using the high-generation float glass furnace for electronic display as described in any one of claims 1 to 5 as a display glass furnace integrating melting, clarification, homogenization and cooling without using or using a small amount of precious metals; Before the formal production stage, pre-production preparation is required, and the pre-production preparation includes: (1) Expansion setting: the connection between the clarifying part (2) and the channel (3) is used as a fixed position, and the melting part (1) and the clarifying part (2) expand from this point toward the feeding port, and the channel (3) expands toward the flow channel (5); (2) Kiln preparation: A: The kiln burner (6) is installed in the feeding port of the melting section (1) and the burner holes of the melting section (1) and the clarification section (2); B: Install temporary smoke exhaust equipment on the smoke exhaust hole (403) and connect it to the main smoke duct of the kiln; C: sealed mixing barrel 1 (302) and mixing barrel 2 (304); (3) Kiln heating: Use the high-temperature flue gas generated by the burning gun to heat the kiln, and start the temporary flue gas exhaust equipment to drain and exhaust the smoke; (4) Preparation of guide plate: a: After the melting section (1) and the clarification section (2) have finished heating, broken glass and batch materials are added in stages. As the glass liquid level rises, the flow hole (202) is gradually blocked by the glass liquid, and the high-temperature flue gas entering the channel (3) is continuously reduced. At this time, the heating wires of each functional section of the channel (3) are turned on for heat compensation to ensure that the channel temperature is stable or continues to rise to the target temperature; b: When the glass liquid level is established, the smoke exhaust volume of the smoke exhaust hole (403) is adjusted in time. When the liquid flow hole (202) is completely blocked, the smoke exhaust is stopped and the smoke exhaust equipment is removed. The smoke exhaust hole (403) is sealed and insulated; c: When the glass liquid covers the electrode in a certain area, the electrode heating can be started. If there is a corresponding heating wire in this area, the heating wire will be gradually shut down; d: When the glass liquid level reaches the target height and the liquid level position is confirmed to be correct through the smoke exhaust hole (403), the forming guide plate can be used.

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