Glass electric furnace settling flow channel

Abstract

This utility model discloses a settling-type flow channel for a glass electric melting furnace, including an electric melting furnace pool, a pool wall on the side of the pool, and a settling-type flow channel at the bottom of the pool. The pool wall is fixedly connected to a cover brick, one end of the settling-type flow channel is connected to an ascending channel, the upper surface of the cover brick is fixedly connected to a cooling plate, a cooling tank is provided inside the cooling plate, an air inlet pipe is fixedly installed inside the cooling tank, one end of the air inlet pipe is fixedly connected to a buffer cylinder, and an induced draft fan is fixedly installed on the upper surface of the cooling plate. This utility model uses a guide slope on the bottom surface of the cover plate to push bubbles along the slope, reducing the adhesion force required for bubble attachment. The rapid discharge of bubbles effectively reduces the number of attached bubbles at the glass melt / refractory material / gas three-phase interface, significantly reducing the dissolution of the refractory material. Combined with the fan, air is forced through the air inlet pipe to accelerate the cooling of the coolant itself, further improving the cooling effect of the cover brick.

Description

Technical Field

[0001] This utility model relates to the field of glass electric melting furnace technology, specifically to a settling flow channel for a glass electric melting furnace. Background Technology

[0002] The flow channel is a crucial part of the glass furnace. The molten, clarified, and homogenized glass passes through it into the distribution and feeding channels for further homogenization and cooling before entering the forming equipment for production. The flow channel is constructed using fused fused bricks with good erosion resistance. These bricks have an upward-etching porosity at the solid-liquid-gas phase interface, making the cover bricks of the flow channel more susceptible to erosion than other areas. Furthermore, the high temperature accelerates the corrosion of the cover bricks, reducing their service life. Utility Model Content

[0003] The purpose of this invention is to provide a settling flow channel for an electric glass melting furnace to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a settling flow channel for a glass electric melting furnace, comprising an electric melting furnace pool, a pool wall provided on the side of the electric melting furnace pool, a settling flow channel provided at the bottom of the electric melting furnace pool, the side of the pool wall being connected and fixed to a cover brick, one end of the settling flow channel being connected to an ascending flow channel, the upper surface of the cover brick being fixedly connected to a cooling plate, a cooling groove being provided inside the cooling plate, an air inlet pipe being fixedly installed inside the cooling groove, one end of the air inlet pipe being fixedly connected to a buffer cylinder, and an induced draft fan being fixedly installed on the upper surface of the cooling plate.

[0005] Preferably, the settling flow hole is located below the electric furnace pool, and the electric furnace pool is connected to the rising flow channel through the settling flow hole.

[0006] Preferably, a cover brick is provided at the top of the settling flow hole, and a guide slope is provided at the bottom of the cover brick. The guide slope is inclined downward from the side from the electric furnace pool to the rising flow channel.

[0007] Preferably, the side of the cooling plate is connected and fixed to the inlet pipe and the outlet pipe respectively, and a cooling tank is provided inside the cooling plate, and coolant is provided inside the cooling tank.

[0008] Preferably, one end of the air intake pipe extends into the interior of the cooling plate and is fixedly connected to the buffer cylinder, one end of the buffer cylinder is fixedly connected to the connecting pipe, and the other end of the connecting pipe is fixedly connected to the input end of the induced draft fan.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] This invention features a guide slope on the bottom surface of the cover plate, which slopes from the end near the melting zone (upstream) to the refining zone (downstream), i.e., higher upstream and lower downstream, with an inclination angle between 3° and 15°. This promotes bubble detachment, as the guide slope pushes the bubbles along the slope, reducing the adhesion force required for bubble attachment. The rapid removal of bubbles effectively reduces the number of attached bubbles at the glass melt / refractory material / gas three-phase interface, significantly reducing the dissolution of the refractory material. The circulating water inside the cooling plate cools the cover plate bricks, and the fan allows air to pass through the air inlet pipe to accelerate the cooling of the coolant itself, further improving the cooling effect of the cover plate bricks. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a partial structural schematic diagram of the present invention;

[0013] Figure 3 This is a cross-sectional view of the internal structure of the cooling plate of this utility model;

[0014] Figure 4 This is a partial structural schematic diagram of the present invention.

[0015] In the diagram: 1. Electric melting furnace pool; 2. Pool wall; 3. Settling flow channel; 4. Cover brick; 5. Rising flow channel; 6. Guide slope; 7. Cooling plate; 8. Cooling tank; 9. Air inlet pipe; 10. Buffer cylinder; 11. Exhaust fan; 12. Connecting pipe; 13. Water inlet pipe; 14. Water outlet pipe. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-4 This utility model provides a technical solution: a settling-type flow channel for a glass electric melting furnace, comprising an electric melting furnace pool 1, a pool wall 2 on the side wall of the electric melting furnace pool 1, and a settling-type flow channel 3 at the bottom of the electric melting furnace pool 1, located below the electric melting furnace pool 1. The electric melting furnace pool 1 is connected to an ascending flow channel 5 through the settling-type flow channel 3. The molten high-temperature glass inside the electric melting furnace pool 1 flows into the settling-type flow channel 3 under the action of gravity, and then flows into the ascending flow channel 5 for transportation. The side wall 2 is connected and fixed to a cover brick 4.

[0018] A cover brick 4 is installed at the top of the settling flow channel 3, and a guide slope 6 is installed at the bottom of the cover brick 4. The guide slope 6 is inclined downward from the side of the electric melting furnace pool 1 to the rising flow channel 5. The cover brick 4 is inclined from the upstream end near the melting zone to the downstream end of the refining zone, that is, the upstream is higher and the downstream is lower, and the inclination angle is between 3° and 15°, which promotes the detachment of bubbles. The cover brick 4 pushes the bubbles to move along the slope, reducing the adhesion force required for bubble adhesion. The rapid discharge of bubbles effectively reduces the number of attached bubbles at the glass melt / refractory material / gas three-phase interface, which will significantly reduce the dissolution of refractory material, thus effectively reducing the erosion of the cover brick 4 and extending the service life of the cover brick 4.

[0019] The upper surface of the cover brick 4 is fixedly connected to the cooling plate 7. A cooling tank 8 is provided inside the cooling plate 7, and coolant is provided inside the cooling tank 8. The sides of the cooling plate 7 are respectively connected and fixed to the inlet pipe 13 and the outlet pipe 14. Both the inlet pipe 13 and the outlet pipe 14 are connected to the inside of the cooling tank 8. The inlet pipe 13 and the outlet pipe 14 are located at the two ends of the cooling tank 8, respectively.

[0020] The cooling tank 8 is fixedly connected to the outside of the air intake pipe 9. One end of the air intake pipe 9 is fixedly connected to the buffer cylinder 10. An induced draft fan 11 is fixedly installed on the upper surface of the cooling plate 7.

[0021] One end of the intake pipe 9 extends into the interior of the cooling plate 7 and is fixedly connected to the buffer cylinder 10. One end of the buffer cylinder 10 is fixedly connected to the connecting pipe 12, and the other end of the connecting pipe 12 is fixedly connected to the input end of the induced draft fan 11.

[0022] Working Principle: During operation, the molten glass in the electric furnace pool 1 flows towards the settling flow hole 3 under gravity. The top of the settling flow hole 3 is a guide slope 6. On a horizontal surface, bubbles mainly rely on their own buoyancy to overcome surface tension and detach. However, on an inclined surface, the buoyancy of the bubbles can be decomposed into a component perpendicular to the slope and a component parallel to the slope. This component parallel to the slope propels the bubbles upward along the slope, thereby accelerating their movement and reducing the "adhesive force" required for bubble attachment. Furthermore, the shear force generated by the flowing molten glass on the inclined surface is more conducive to "sweeping away" or "peeling off" the bubbles attached to the slope, thus preventing the attached bubbles from accelerating the dissolution of the refractory material at the three-phase interface of molten glass / refractory material / gas. The guide slope 6 helps the molten glass flow more smoothly over the surface of the cover brick 4, promoting the renewal of the surface molten glass.

[0023] The combination of the inlet pipe 13 and the outlet pipe 14 allows the cooling water to circulate continuously within the cooling plate 7, accelerating the cooling and heat dissipation of the cover brick 4, thereby reducing the erosion of the cover brick 4 and extending its service life. The exhaust fan 11 allows air to enter from the air inlet pipe 9 and then be discharged, accelerating the heat dissipation of the coolant in the cooling plate 7 and improving the heat dissipation effect on the cover brick 4.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A glass electric furnace settling column, comprising an electric furnace tank (1), characterized in that: The electric furnace pool (1) has a pool wall (2) on its side and a settling flow hole (3) at the bottom of the electric furnace pool (1). The side of the pool wall (2) is connected and fixed to the cover brick (4). One end of the settling flow hole (3) is connected to the rising flow channel (5). The upper surface of the cover brick (4) is fixedly connected to the cooling plate (7). The cooling plate (7) has a cooling tank (8) inside. An air inlet pipe (9) is fixedly installed inside the cooling tank (8). One end of the air inlet pipe (9) is fixedly connected to the buffer cylinder (10). An induced draft fan (11) is fixedly installed on the upper surface of the cooling plate (7).

2. A glass electric furnace settling chamber according to claim 1, characterized in that: The settling flow hole (3) is located below the electric furnace pool (1), and the electric furnace pool (1) is connected to the rising flow channel (5) through the settling flow hole (3).

3. A submerged draft tube for a glassmelting furnace as defined in claim 2, wherein: The top of the settling flow hole (3) is provided with a cover brick (4), and the bottom of the cover brick (4) is provided with a guide slope (6). The guide slope (6) is inclined downward from the side of the electric furnace pool (1) to the rising flow channel (5).

4. A submerged draft tube for a glassmelting furnace as defined in claim 1, wherein: The cooling plate (7) is connected and fixed to the water inlet pipe (13) and the water outlet pipe (14) on its side, and the cooling tank (8) is filled with coolant.

5. A submerged draft tube for a glassmelting furnace as defined in claim 4, wherein: One end of the air intake pipe (9) extends into the interior of the cooling plate (7) and is fixedly connected to the buffer cylinder (10). One end of the buffer cylinder (10) is fixedly connected to the connecting pipe (12), and the other end of the connecting pipe (12) is fixedly connected to the input end of the induced draft fan (11).

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