Device for improving raw material melting efficiency in float glass production

Abstract

The present application discloses a device for improving the melting efficiency of raw materials in float glass production. By adopting a deep pool structure in the melting section of the furnace body of the kiln, and arranging a plurality of steps in the form of a stepped structure on the bottom of the pool in the clarification section, the reflux of glass liquid in the batch material area is strengthened, and the melting of the batch material is promoted. Without the need to heat the clarification section separately, the glass liquid can be kept in a molten state as a whole in the clarification section while consuming the same amount of fuel, effectively avoiding the formation of structures such as stones in the glass, improving the glass quality, and at the same time improving the energy utilization rate and reducing the production cost.

Description

Technical Field

[0001] The present application relates to a device for improving the melting efficiency of raw materials in float glass production, belonging to the technical field of float glass production. Background Art

[0002] The production of float glass is that molten glass flows continuously from the tank kiln and floats on the surface of the relatively dense tin liquid. At the same time, protective gas (N2 and H2) is introduced into the tin tank. Under the action of gravity and surface tension, the glass liquid spreads, flattens, cools, and hardens on the tin liquid surface to form glass with smooth upper and lower surfaces. The resulting glass has good flatness, no water ripples on the glass surface, tight structure, smooth feel, and has a higher specific gravity per square meter than flat plate of the same thickness. It is easy to cut and not easy to break. Float glass uses mineral quartz sand. The produced glass is pure, transparent, and has no obvious defects such as glass boils and bubbles. It can be widely used in mirror making and automotive glass.

[0003] According to statistics from the China Glass Association, as of December 31, 2019, there were 298 float glass production lines in China, 241 of which were in production, with a total daily melting capacity of 160,185 tons. my country has become the world's largest glass manufacturing country, with its products sold all over the world, accounting for more than 50% of the global glass market share. However, my country's overall glass manufacturing industry has weak innovation capabilities, and the manufacturing process is energy-intensive and resource-intensive, which is far behind the advanced level of foreign countries.

[0004] In recent years, the China Building Materials Federation has worked with organizations such as the China Building Glass and Industrial Glass Association to carry out research on innovative technologies for China's second-generation float glass. Fuel costs account for more than 30% of glass costs. Improving glass melting efficiency and reducing fuel costs are particularly important for enterprise restructuring and achieving high-quality development.

[0005] The fuel used in the glass production process is mainly used for melting glass raw materials. The glass melting process is mainly divided into the silicate formation stage and the glass liquid formation stage. The whole process from batch material to glass liquid is the most important and complex stage in glass melting. In this stage, different batch material components, feeding methods, flame coverage area and convection methods will affect the melting efficiency. Unstable melting efficiency will cause deviations in glass components, inconsistent gas amounts in the glass, and even cause the produced glass to contain stones formed by unmelted materials, resulting in reduced glass quality. Therefore, improving melting efficiency and reducing energy consumption in the glass melting process are crucial to reducing costs and increasing efficiency for enterprises, and structural adjustments. At the same time, it is also beneficial to improve the quality of the produced glass and avoid the residue of unmelted stones in the glass.

[0006] In the prior art, the unmelted part of the glass raw materials is melted by using a relatively high temperature in the melting section, especially in the clarification section, which also prevents the formation of nodules (glassy inclusions) in the glass liquid. However, this method not only increases energy consumption and production costs, but also increases the accuracy of temperature monitoring in the melting section of the kiln. Once the temperature of the clarification section drops, if it is not discovered and fuel is not replenished in time, the entire batch of glass will be scrapped, increasing the difficulty of production process control. Summary of the invention

[0007] The present application provides a device for improving the melting efficiency of raw materials in float glass production, which is used to solve the above-mentioned technical problems.

[0008] The present application provides a device for improving the melting efficiency of raw materials in float glass production, comprising: a kiln, a feeder, a neck section, and a cooling section.

[0009] The feeder is arranged on the feeding end of the kiln; the feeder comprises: a push plate and a driving motor, the driving motor is arranged in the feeder, the push plate is arranged on the discharging end of the feeder and is connected to the driving motor; a sealing cover is arranged on the top surface between the push plate and the feeding end of the kiln;

[0010] The neck section is arranged on the discharge end of the kiln; the discharge end of the neck section is connected to the feed end of the cooling section;

[0011] The kiln comprises: a furnace body, the furnace body comprises: a melting section and a clarification section, the first end of the melting section is connected to the feeding mechanism; the second end of the melting section is connected to the first end of the clarification section, and the second end of the clarification section is connected to the neck water bag; the clarification section comprises: a stage section and a deepening section; the first end of the deepening section is connected to the melting section; the second end of the deepening section is connected to the stage section; the stage section is arranged close to the neck water bag; the depth of the furnace bottom in the deepening section is greater than the deepest furnace body depth of the stage section; a plurality of step surfaces are arranged on the bottom surface of the furnace body in the stage section, and the furnace body depth on each step surface decreases step by step toward the neck water bag;

[0012] It includes: an L-shaped hanging wall, which is arranged on the feeding end of the furnace body and between the furnace body and the feeding machine;

[0013] The melting section and clarification section in the furnace are of equal width;

[0014] It comprises: a plurality of bubblers, the bubblers are arranged on the bottom surface of the furnace body at intervals along the longitudinal direction of the furnace body; the bubblers are arranged on the same straight line;

[0015] The invention comprises: a hot air intake assembly arranged in pairs, the hot air intake assembly comprising: a first hot air intake assembly and a second hot air intake assembly, the first hot air intake assembly and the second hot air intake assembly are symmetrically arranged in pairs on two opposite side walls of the furnace body; the first hot air intake assembly is arranged on a first side of the furnace body and is connected to an air inlet on the furnace body; the second hot air intake assembly is arranged on a second side of the furnace body and is connected to an air inlet on the other side of the furnace body;

[0016] The hot air intake assembly includes: a flue, a heat storage chamber and a small furnace, wherein the air outlet of the flue is connected to the air inlet of the heat storage chamber; the air outlet of the heat storage chamber is connected to the small furnace; and the small furnace is connected to the air inlet of the furnace body;

[0017] The small furnace includes: furnace No. 1 and oxygen lance No. 0. Furnace No. 1 is symmetrically arranged in pairs on the side wall of the furnace body at the feeding end; oxygen lance No. 0 is arranged on the outside of furnace No. 1 and connected to furnace No. 1 for oxygen supply.

[0018] Preferably, it comprises: an image acquisition module and a central control module, wherein the image acquisition module is arranged on the inner wall of the cooling part; the flowing glass liquid in the cooling part is arranged in the image acquisition area of ​​the image acquisition module;

[0019] The image acquisition module and the driving motor of the feeder are electrically connected to the central control module respectively;

[0020] An image acquisition module, used for acquiring an image of the liquid surface in the cooling unit;

[0021] The central control module is used to process the liquid level image in the cooling section acquired by the image acquisition module to obtain the liquid level height of the cooling section, and control the rotation frequency of the feeder driving motor according to the liquid level height of the cooling section.

[0022] Preferably, the depth of the furnace body in the deepening section is 1200-1600 mm.

[0023] Preferably, the step stage comprises: a first step surface, a second step surface, a third step surface and a fourth step surface, and the first step surface is arranged on the second end of the deepening section;

[0024] The second step surface is arranged outside the first step surface; the third step surface is arranged outside the second step surface; the fourth step surface is arranged outside the third step surface;

[0025] The second end of the fourth step surface is connected to the neck water bag.

[0026] Preferably, the depth of the furnace body on the second step surface is less than the depth of the furnace body on the first step surface;

[0027] The depth of the furnace body on the third step surface is less than the depth of the furnace body on the second step surface;

[0028] The depth of the furnace body on the fourth step surface is smaller than the depth of the furnace body on the third step surface.

[0029] Preferably, the depth difference of the furnace body between any two adjacent step surfaces is 50-150 mm.

[0030] Preferably, the bubbler is arranged on the interface between the melting section and the clarification section.

[0031] Preferably, it comprises: a heat-insulating structure layer, which is coated on the furnace body, the heat storage chamber, the small furnace and the outer side wall of the flue.

[0032] Preferably, the thermal insulation structure layer includes: a re-sintered capacitor mullite layer, a mullite insulation brick, a ceramic fiberboard, and a coating layer.

[0033] The mullite insulation brick is arranged on the outer side wall of the re-sintered capacitor mullite layer;

[0034] The ceramic fiberboard is arranged on the outer side wall of the mullite insulation brick;

[0035] The coating layer is arranged on the outer side wall of the ceramic fiberboard.

[0036] Preferably, the feeder is a pulse feeder or a continuous feeder.

[0037] The beneficial effects of this application include:

[0038] 1) The device for improving the melting efficiency of raw materials in float glass production provided in the present application adopts a deep pool structure in the melting section of the kiln body, and sets the pool bottom in the clarification section in a stepped structure with a plurality of steps, thereby strengthening the reflux of glass liquid in the batch material area and promoting the melting of the batch material. Without the need to heat the clarification section separately, the glass liquid can be kept in a molten state as a whole in the clarification section while consuming the same amount of fuel, effectively avoiding the formation of structures such as stones in the glass, improving the quality of the glass, and at the same time improving energy utilization and reducing production costs.

[0039] 2) The device for improving the melting efficiency of raw materials in float glass production provided in the present application, by respectively arranging a 45° L-shaped hanging wall and a sealing cover on the feeding end of the furnace body, and cooperating with the No. 1 furnace and the No. 0 oxygen lance arranged on the feeding end, the thermal efficiency of the No. 1 furnace on the materials at the feeding end of the furnace body is enhanced, and the preheating effect of the feeding end of the furnace body on the materials is improved. Through the effective preheating of the feeding powder, a molten layer can be formed on the surface of the powder material, and each powder particle is connected to each other through the molten layer. The higher heat transfer efficiency effect formed inside the molten layer is utilized to enhance the dissolution efficiency of the glass raw material by heat generated by the same amount of energy, effectively avoid the residual insoluble stones inside the local chalk particles, and can basically eliminate the stones contained in the produced glass without increasing energy consumption, effectively improve the melting efficiency of the provided glass, reduce the proportion of stones and carbuncle (glassy inclusions) in the glass products, improve product quality, and reduce energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A schematic diagram of a top view of the structure of a device for improving the melting efficiency of raw materials in float glass production provided in the present application;

[0041] Figure 2 A schematic diagram of the main structure of the melting furnace provided for this application;

[0042] Figure 3 This is a schematic diagram of the main cross-sectional structure of the furnace clarification section provided in this application;

[0043] Figure 4 A schematic diagram of the outer wall structure of the furnace body provided in this application;

[0044] Figure 5 This is a schematic diagram of the main structure of the device for improving the melting efficiency of raw materials in float glass production provided by the present application;

[0045] Legend:

[0046] 10. Regenerator; 12. Small furnace; 21. Melting section; 211. Bubbler; 23. Deepening section; 22. Stage; 221. First step surface; 222. Second step surface; 223. Third step surface; 224. Fourth step surface; 101. Re-sintered capacitor mullite layer; 102. Mullite insulation brick; 103. Ceramic fiberboard; 104. Coating layer; 121. No. 1 furnace; 30. Neck; 31. Silo; 32. Feeder; 33. L-shaped hanging wall; 331. No. 0 oxygen gun. DETAILED DESCRIPTION

[0047] The present application is described in detail below with reference to embodiments, but the present application is not limited to these embodiments.

[0048] See also Figures 1 to 5The device for improving the melting efficiency of raw materials in float glass production provided in the present application comprises: a kiln, a feeder 32, a neck 30, and a cooling part.

[0049] The feeder 32 is arranged on the feeding end of the kiln; the feeder 32 comprises: a push plate and a driving motor, the driving motor is arranged in the feeder 32, the push plate is arranged on the discharging end of the feeder 32 and is connected to the driving motor; a sealing cover is arranged on the top surface between the push plate and the feeding end of the kiln;

[0050] The neck 30 is arranged on the discharge end of the kiln; the discharge end of the neck 30 is connected to the feed end of the cooling part;

[0051] The kiln comprises: a furnace body, the furnace body comprises: a melting section 21 and a clarification section, the first end of the melting section 21 is connected to the feeding mechanism; the second end of the melting section 21 is connected to the first end of the clarification section, and the second end of the clarification section is connected to the neck 30 water bag; the clarification section comprises: a stage section 22 and a deepening section 23; the first end of the deepening section 23 is connected to the melting section 21; the second end of the deepening section 23 is connected to the stage section 22; the stage section 22 is arranged close to the neck 30 water bag; the furnace bottom depth in the deepening section 23 is greater than the deepest furnace body depth of the stage section 22; a plurality of step surfaces are arranged on the bottom surface of the furnace body in the stage section 22, and the furnace body depth on each step surface decreases step by step toward the neck 30 water bag;

[0052] It includes: an L-shaped hanging wall 33, which is arranged on the feeding end of the furnace body and between the furnace body and the feeder 32;

[0053] The width of the melting section 21 and the clarification section in the furnace body are equal;

[0054] It comprises: a plurality of bubblers 211, the bubblers 211 are arranged on the bottom surface of the furnace body at intervals along the longitudinal direction of the furnace body; the bubblers 211 are arranged on the same straight line;

[0055] The invention comprises: a hot air intake assembly arranged in pairs, the hot air intake assembly comprising: a first hot air intake assembly and a second hot air intake assembly, the first hot air intake assembly and the second hot air intake assembly are symmetrically arranged in pairs on two opposite side walls of the furnace body; the first hot air intake assembly is arranged on a first side of the furnace body and is connected to an air inlet on the furnace body; the second hot air intake assembly is arranged on a second side of the furnace body and is connected to an air inlet on the other side of the furnace body;

[0056] The hot air intake assembly includes: a flue, a regenerator 10 and a small furnace 12, wherein the air outlet of the flue is connected to the air inlet of the regenerator 10; the air outlet of the regenerator 10 is connected to the small furnace 12; and the small furnace 12 is connected to the air inlet of the furnace body;

[0057] The small furnace 12 includes: furnace No. 121 and oxygen lance No. 0 331. Furnace No. 121 is symmetrically arranged in pairs on the side wall of the furnace body at the feeding end; oxygen lance No. 0 331 is arranged on the outside of furnace No. 121 and is connected to furnace No. 121 for oxygen supply.

[0058] The deepening section 23 and the stage 22 are respectively arranged in the water bag area near the neck 30 in the melting furnace body, so that the maximum depth area of ​​the furnace body in the clarification section of the furnace body is on the side of the melting section 21. After the glass is melted into glass liquid, it first enters the deepening section 23. At the same time, the height difference is used to prevent the glass liquid from flowing back into the melting section 21 after melting, and then the secondary heating is carried out to reduce energy waste and improve the melting effect of heat on the raw materials. Afterwards, the depth of the bottom surface of the furnace body in the stage 22 connected to the deepening section 23 is gradually increased. On the one hand, the convection effect of each step facing the glass liquid flowing out of the deepening section 23 can be used to strengthen heat exchange and improve energy utilization. On the other hand, the convection effect on the glass liquid can be used to strengthen the overflow of bubbles in the glass liquid, and the bubble content in the obtained glass can be further reduced.

[0059] By respectively arranging a 45° L-shaped hanging wall 33 and a sealing cover at the feeding end of the furnace body, the heat dissipation at the feeding end can be greatly reduced, and in combination with the No. 1 furnace 121 and the No. 0 oxygen lance 331 arranged at the feeding end, the thermal efficiency of the No. 1 furnace 121 is enhanced, thereby improving the preheating effect of the material at the feeding end of the furnace body. Through the effective preheating of the feed powder, a molten layer can be formed on the surface of the powder material, and each powder particle is connected to each other through the molten layer. The higher heat transfer efficiency formed inside the molten layer is utilized, thereby enhancing the dissolution efficiency of the glass raw materials by generating heat with the same amount of energy, effectively avoiding the residual insoluble stones inside the local chalk particles, and can basically eliminate the stones contained in the produced glass without increasing energy consumption, effectively improving the melting efficiency of the supplier's glass.

[0060] By adopting a full-width feeding pool, the heating area of ​​the batch material in the entire furnace body is expanded, effectively avoiding the formation of stones or liquid impurities in the clarification section, and improving the quality of glass.

[0061] The bubble content in the glass liquid can be reduced by arranging the bubbler 211, and the reflux effect in the glass liquid can be enhanced, thereby improving the efficiency of melting glass with energy. The furnace body can be heated by arranging the hot air intake components symmetrically in pairs.

[0062] The device sets a single-row wet bubbling device at the bottom of the pool near the hot spot of the melting part to promote the strengthening movement of the glass liquid and produce a mixing and stirring effect, thereby strengthening the convection of the glass liquid in the kiln and increasing the temperature of the glass liquid in the kiln, especially the temperature of the glass liquid at the bottom of the pool. The application of this system can improve the chemical and physical uniformity of the glass liquid and increase the melting rate.

[0063] According to this arrangement, the air is heated by the heat storage chamber 10 and then introduced into the air inlet of the furnace body to melt the raw materials. After melting, the waste heat in the tail gas is reused again by reversing, thereby improving energy utilization. Other valves, pumps and other components included in the hot air intake assembly are arranged according to the existing arrangement method and are not described here.

[0064] Preferably, it comprises: an image acquisition module and a central control module, wherein the image acquisition module is arranged on the inner wall of the cooling part; the flowing glass liquid in the cooling part is arranged in the image acquisition area of ​​the image acquisition module;

[0065] The image acquisition module and the driving motor of the feeder 32 are electrically connected to the central control module respectively;

[0066] The image acquisition module is used to acquire the liquid level image in the cooling section, and the central control module is used to acquire the liquid level height of the cooling section after processing the liquid level image in the cooling section acquired by the image acquisition module, and control the rotation frequency of the driving motor of the feeder 32 according to the liquid level height of the cooling section.

[0067] The device can improve the response speed of the feeder 32 by adopting the image acquisition module, and timely adjust the feed amount according to the height of the downstream glass liquid, so as to avoid adding too much material, resulting in too much downstream glass liquid, and the glass liquid cannot enter the next process in time, resulting in the formation of boils (glass inclusions) after the local cooling of the top surface of the glass liquid, which affects the glass quality. Automatically adjusting the feed speed according to the liquid level signal is conducive to the pre-melting and melting quality of the batch material, and can effectively avoid the formation of some unmeltable stones in the preheating section due to excessive feeding and failure to melt in time. Once the stones are formed, they cannot be effectively melted again in the subsequent process after being coated by other glass liquids, which will eventually lead to the reduction of the quality of float glass.

[0068] Preferably, the furnace body depth in the deepening section 23 is 1200-1600 mm. According to this arrangement, the melted glass liquid can actively flow into the furnace body deepening section 23 under the action of its own weight to avoid backflow.

[0069] Preferably, the step section 22 includes: a first step surface 221, a second step surface 222, a third step surface 223 and a fourth step surface 224, wherein the first step surface 221 is arranged on the second end of the deepening section 23; the second step surface 222 is arranged outside the first step surface 221; the third step surface 223 is arranged outside the second step surface 222; the fourth step surface 224 is arranged outside the third step surface 223; and the second end of the fourth step surface 224 is connected to the water bag of the clamping neck 30. According to this arrangement, the convection effect of the outflowing glass liquid can be enhanced, and the step surfaces can be used to generate a backflow impact on the outflowing glass liquid, enhance the bubble discharge effect, and at the same time enhance the heat exchange and improve the energy utilization rate.

[0070] Preferably, the furnace body depth on the second step surface 222 is less than the furnace body depth on the first step surface 221; the furnace body depth on the third step surface 223 is less than the furnace body depth on the second step surface 222; the furnace body depth on the fourth step surface 224 is less than the furnace body depth on the third step surface 223. In this way, the furnace body bottom depth in the furnace body platform stage 22 is gradually raised.

[0071] Preferably, the depth difference of the furnace body between any two adjacent step surfaces is 50-150 mm.

[0072] This arrangement can improve the stability of the lifting of the stage 22 and avoid the glass liquid being retained in the deepening section 23 due to the excessively high step.

[0073] Preferably, the bubbler 211 is arranged on the interface between the melting section 21 and the clarification section. According to this arrangement, the glass liquid temperature is the highest here, and bubbling can be achieved in the highest temperature area in the furnace body, at which time the bubble overflow effect in the glass liquid is optimal.

[0074] In a specific embodiment, the melting furnace body adopts a deep pool structure, the bottom of the melting furnace pool adopts a stepped structure, the melting pool is 1400mm deep, the clarification zone is provided with several steps, and the end is lifted 100mm 1m outside the center line of the small furnace 12, with a total of four steps, and the cooling part pool is 1000mm deep; the glass liquid reflux in the batch material area is strengthened to promote the melting of the batch material; the shallower clarification zone and the cooling part pool depth can reduce the reflux of the glass liquid, reduce the repeated heating of the glass liquid, and save energy and reduce consumption. Setting the melting pool according to the parameters in this embodiment can minimize the proportion of ash contained in the produced glass.

[0075] See also Figure 3 Preferably, it includes: a heat-insulating structure layer, which is coated on the furnace body, the heat storage chamber 10, the small furnace 12, and the outer wall of the flue. By setting the heat-insulating structure layer, the energy utilization rate can be improved, the overall heat dissipation can be reduced, and the energy consumption can be reduced. By setting the heat-insulating layer structure on the surface of the main heat-dissipating original component, the energy utilization rate can be improved, the heat dissipation ratio can be reduced, and the one-way energy flow between energy consumption and glass melting can be effectively improved to avoid excessive heat dissipation.

[0076] Preferably, the heat-insulating structure layer includes: a re-sintered capacitor mullite layer 101, a mullite heat-insulating brick 102, a ceramic fiberboard 103, and a coating layer, wherein the mullite heat-insulating brick 102 is arranged on the outer wall of the re-sintered capacitor mullite layer 101; the ceramic fiberboard 103 is arranged on the outer wall of the mullite heat-insulating brick 102; and the coating layer is arranged on the outer wall of the ceramic fiberboard 103. By arranging the above layers, the overall heat dissipation of the furnace body can be reduced and the energy utilization rate can be improved.

[0077] Preferably, the feeder 32 is a pulse feeder 32 or a continuous feeder 32. Different types of feed methods can meet the material feeding requirements at different liquid level heights in the cooling part.

[0078] Preferably, a silo 31 is included, and the silo 31 is arranged on the feeding end of the feeder. By arranging the silo, it is convenient to control the material feeding and improve the production efficiency.

[0079] The "one embodiment", "another embodiment", "embodiment", "preferred embodiment" and the like mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when a specific feature, structure or characteristic is described in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of this application.

[0080] Although the present application is described herein with reference to a plurality of illustrative embodiments of the present application, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the present disclosure and claims, a variety of variations and improvements may be made to the components and / or layout of the subject combination layout. In addition to the variations and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A device for improving the melting efficiency of raw materials in float glass production, characterized in that: include: kiln, feeder (32), neck (30) section, cooling section, The feeder (32) is arranged on the feed end of the kiln; the feeder (32) comprises: a push plate and a drive motor, the drive motor is arranged in the feeder (32), the push plate is arranged on the discharge end of the feeder (32) and is drive-connected to the drive motor; a sealing cover is arranged on the top surface between the push plate and the feed end of the kiln; The neck (30) section is arranged on the discharge end of the kiln; the discharge end of the neck (30) is connected to the feed end of the cooling part; The kiln comprises: a furnace body, the furnace body comprising: a melting section (21) and a clarification section, the first end of the melting section (21) being connected to a feeding mechanism; the second end of the melting section (21) being connected to the first end of the clarification section, and the second end of the clarification section being connected to a neck (30) water bag; the clarification section comprising: a stage section (22) and a deepening section (23); the first end of the deepening section (23) being connected to the melting section (21); the second end of the deepening section (23) being connected to the stage section (22); the stage section (22) being arranged close to the neck (30) water bag; the depth of the furnace bottom in the deepening section (23) being greater than the deepest furnace body depth of the stage section (22); a plurality of step surfaces being arranged on the furnace body bottom surface in the stage section (22), and the furnace body depth on each step surface gradually decreasing toward the neck (30) water bag; It comprises: an L-shaped hanging wall (33), which is arranged on the feeding end of the furnace body and between the furnace body and the feeding machine (32); The melting section (21) and the clarification section in the furnace body have equal widths; It comprises: a plurality of bubblers (211), wherein the bubblers (211) are arranged on the bottom surface of the furnace body at intervals along the longitudinal direction of the furnace body; and the bubblers (211) are arranged on the same straight line; The invention comprises: a hot air intake assembly arranged in pairs, the hot air intake assembly comprising: a first hot air intake assembly and a second hot air intake assembly, the first hot air intake assembly and the second hot air intake assembly are symmetrically arranged in pairs on two opposite side walls of the furnace body; the first hot air intake assembly is arranged on a first side of the furnace body and is connected to an air inlet on the furnace body; the second hot air intake assembly is arranged on a second side of the furnace body and is connected to an air inlet on the other side of the furnace body; The hot air intake assembly comprises: a flue, a heat storage chamber (10) and a small furnace (12); the air outlet end of the flue is connected to the air inlet end of the heat storage chamber (10); the air outlet end of the heat storage chamber (10) is connected to the small furnace (12); and the small furnace (12) is connected to the air inlet end of the furnace body; The small furnace (12) comprises: a No. 1 furnace (121) and a No. 0 oxygen lance (331), wherein the No. 1 furnace (121) is symmetrically arranged in pairs on the side wall of the furnace body at the feeding end; the No. 0 oxygen lance (331) is arranged outside the No. 1 furnace (121) and is connected to the No. 1 furnace (121) to supply oxygen; It includes: an image acquisition module and a central control module, wherein the image acquisition module is arranged on the inner wall of the cooling part; the flowing glass liquid in the cooling part is arranged in the image acquisition area of ​​the image acquisition module; The image acquisition module and the driving motor of the feeder (32) are electrically connected to the central control module respectively; The image acquisition module is used to acquire the image of the liquid surface in the cooling part; The central control module is used to process the image of the liquid surface in the cooling section acquired by the image acquisition module to acquire the height of the liquid surface in the cooling section, and to control the rotation frequency of the driving motor of the feeder (32) according to the height of the liquid surface in the cooling section.

2. The device for improving the melting efficiency of raw materials in float glass production according to claim 1, characterized in that: The furnace body depth in the deepening section (23) is 1200-1600 mm.

3. The device for improving the melting efficiency of raw materials in float glass production according to claim 1, characterized in that: The step section (22) comprises: a first step surface (221), a second step surface (222), a third step surface (223) and a fourth step surface (224); the first step surface (221) is arranged on the second end of the deepening section (23); The second step surface (222) is arranged outside the first step surface (221); the third step surface (223) is arranged outside the second step surface (222); and the fourth step surface (224) is arranged outside the third step surface (223); The second end of the fourth step surface (224) is connected to the water bag of the clamping neck (30).

4. The device for improving the melting efficiency of raw materials in float glass production according to claim 3, characterized in that: The furnace body depth on the second step surface (222) is less than the furnace body depth on the first step surface (221); The furnace body depth on the third step surface (223) is less than the furnace body depth on the second step surface (222); The furnace body depth on the fourth step surface (224) is less than the furnace body depth on the third step surface (223).

5. The device for improving the melting efficiency of raw materials in float glass production according to claim 4, characterized in that: The depth difference of the furnace body between any two adjacent step surfaces is 50~150mm.

6. The device for improving the melting efficiency of raw materials in float glass production according to claim 1, characterized in that: The bubbler (211) is arranged on the interface between the melting section (21) and the clarification section.

7. The device for improving the melting efficiency of raw materials in float glass production according to claim 1, characterized in that: include: A heat-insulating structural layer is provided to cover the furnace body, the heat storage chamber (10), the small furnace (12), and the outer wall of the flue.

8. The device for improving the melting efficiency of raw materials in float glass production according to claim 7, characterized in that: The thermal insulation structure layer comprises: a re-sintered capacitor mullite layer (101), a mullite thermal insulation brick (102), a ceramic fiberboard (103), and a coating layer. The mullite insulation brick (102) is arranged on the outer side wall of the re-sintered capacitor mullite layer (101); The ceramic fiber board (103) is arranged on the outer side wall of the mullite insulation brick (102); The coating layer is arranged on the outer side wall of the ceramic fiber board (103).

9. The device for improving the melting efficiency of raw materials in float glass production according to claim 1, characterized in that: The feeder (32) is a pulse feeder (32) or a continuous feeder (32).

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