Kiln throat cooling device

Abstract

The utility model discloses a kiln throat cooling device which comprises a throat, a cover plate brick arranged above the throat and a truss, the truss surrounds the throat and comprises pressing steel, and the pressing steel covers the cover plate brick. The pressing steel is tubular and comprises a cavity, one end of the pressing steel is connected with an air pipe, an air outlet is formed in the body portion of the pressing steel, and the air outlet faces the cover plate brick. The utility model has the beneficial effects that the fixing structure of the cover plate brick of the throat and the cooling of the cooling air pipe are integrated into a whole and are integrated on the pressure steel; the cover plate brick is safely fixed, and meanwhile the cooling effect is achieved.

Description

Technical Field

[0001] The utility model relates to a glass kiln, in particular to a cooling device for a liquid flow hole of the kiln. Background Art

[0002] Glass furnaces are essential melting devices for the glass manufacturing industry, and the sprue hole is a crucial component. Through this hole, molten, clarified glass is transported to the distribution channel and then to the feed channel for product production. The sprue hole, a narrow channel structure, carries the responsibility for transporting glass throughout the furnace's lifecycle. The high velocity of molten glass through the sprue hole erodes this section of the bricks the fastest, making it the most vulnerable point in the furnace. Furthermore, eroded refractory bricks surrounding the sprue hole can enter the molten glass, altering its composition and forming streaks and lines, or even calculi on the glass substrate, severely impacting glass quality and production. In glass furnaces, sprue hole cover bricks are used to isolate the sprue hole from the outside world. These cover bricks are subject to significant erosion and impact from the molten glass during its flow. This can cause the sprue hole to penetrate, allowing the molten glass to overflow under pressure, leading to leakage and a critical factor affecting furnace life. Therefore, how to provide a cooling structure for the flow hole of a glass melting furnace to cool the molten glass entering the flow hole to slow down the erosion rate of the flow hole cover brick entrance has become a difficult problem that technicians in this field urgently need to solve. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a furnace flow hole cooling device to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The solution of the utility model to solve its technical problem is: a kiln flow hole cooling device, including a flow hole, a cover brick is provided above the flow hole, and also includes a truss, the truss surrounds the flow hole, the truss includes pressure steel, the pressure steel covers the top of the cover brick; the pressure steel is tubular, the pressure steel includes a cavity, one end of the pressure steel is connected to the air duct, the body of the pressure steel is provided with an air outlet, and the air outlet faces the cover brick.

[0005] The beneficial effect of the present invention is that the present invention integrates the fixing structure of the cover bricks of the flow hole and the cooling of the cooling air duct into an integrated design and is integrated on the pressing steel; while ensuring the safe fixation of the cover bricks, it also has a cooling effect.

[0006] As a further improvement to the above technical solution, the cover bricks are multiple, and the air outlet faces the gap between the cover bricks. The upper opening of the flow hole is generally assembled from multiple cover bricks. The joints between the bricks are the most susceptible to erosion by the glass liquid, so cooling at this location is crucial.

[0007] As a further improvement to the above technical solution, the air outlet is slender and can increase the wind speed at the air outlet and improve the cooling effect by setting the air outlet in a slender duckbill shape.

[0008] As a further improvement of the above technical solution, the outlet direction of the air outlet is tilted downward. The oblique downward blowing can further improve the cooling effect of the gaps in the cover bricks.

[0009] As a further improvement to the above technical solution, an air inlet is provided below one end of the pressing steel, and the air duct is connected to the air inlet. The air inlet of the pressing steel is arranged below, so that the air duct is connected below the pressing steel, avoiding the air duct being blocked on the upper side of the pressing pipe and affecting the staff's observation of the cover bricks.

[0010] As a further improvement of the above technical solution, the truss further includes a tension rod, and the pressure steel is connected to the tension rod. By utilizing the tension rod principle, the pressure steel can be firmly fixed on the upper side of the cover brick.

[0011] As a further improvement to the above technical solution, the truss includes a support, the pressure steel is fixed to the support, and the tension rod is connected to the support via a nut. The tension rod is provided with a threaded section, and the nut is threadedly connected to the threaded section of the tension rod to facilitate replacement of the pressure steel.

[0012] As a further improvement of the above technical solution, two pressing steels are fixed on the support, and the pull rod is located between the two pressing steels. Using one support to fix two pressing steels can simplify the installation structure of the pressing steels and improve the convenience of operation.

[0013] As a further improvement to the above technical solution, a filter is provided at the air inlet, which can reduce the risk of impurities being blown into the gaps between the cover tiles.

[0014] As a further improvement of the above technical solution, an air volume regulating device is installed at the air inlet to adjust the air volume.

[0015] As a further improvement to the above technical solution, the truss also includes a surrounding profile that is attached to the outer side of the kiln wall. The truss can also secure the kiln's liquid flow hole, preventing it from collapsing and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief description of the drawings required for describing the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of them. Those skilled in the art can also derive other design solutions and drawings based on these drawings without inventive effort.

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 It is a top view of the pressing steel of the present invention.

[0019] Reference numerals:

[0020] Truss 100, bottom steel 110, surrounding profile 120, pressing steel 130, air outlet 131, air inlet 132, air guide plate 133, tie rod 140, support 150 DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technical personnel in this field without creative work are within the scope of protection of the present invention. The preferred embodiments of the present invention are shown in the drawings. The purpose of the drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0023] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0024] In the description of this utility model, unless otherwise expressly defined, terms such as "install," "connect," and "set" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meanings of these terms in this utility model based on the specific content of the technical solution. Furthermore, the various technical features of this invention may be combined interchangeably as long as they do not conflict with each other.

[0025] During operation, molten glass enters the distribution channel through a flow hole. The cross-section of the flow hole is relatively small, and the molten glass erodes the flow hole constantly throughout the kiln's lifespan. The contact surface of the flow hole cover, located at the interface of solid, liquid, and gas phases, is particularly susceptible to erosion. Corroded flow hole covers become increasingly thinner, posing a risk of leakage in the later stages of the kiln's operation. Therefore, it is crucial to keep the flow hole cover cool during operation. Prior art solutions employ flexible air ducts, which directly face the flow hole cover for cooling. However, since the air outlet of a flexible air duct can typically only face one brick, sufficient cooling requires multiple flexible air ducts. Since the overall space in the flow hole is limited, placing multiple flexible air ducts in a confined space creates a cluttered installation site. Furthermore, the frequent maintenance of the flow hole cover and the subsequent hot tiling required to address severely eroded weak spots create significant challenges for on-site construction.

[0026] In order to overcome the various deficiencies in the existing technology, the inventor of the utility model has optimized the cooling device on the flow hole after hard work. By cleverly integrating the fixation of the flow hole steel structure with the cooling of the cooling duct, it can meet the requirements of safe fixation of the brick structure while also achieving a cooling effect. Figures 1 and 2 :

[0027] A kiln flow hole cooling device includes a flow hole (not shown), the flow hole including a pool wall, and the top of the pool wall is provided with a cover brick (not shown). It is understood that the pool wall can include a left wall and a right wall, the left and right walls being arranged on the left and right sides of the flow hole, and the left and right walls being arranged on the left and right sides of the material trough. The left wall, right wall, material trough, and cover bricks collectively enclose the flow hole, so that after the molten glass exits the kiln, it is transported forward through the flow hole and into the material channel. Because the flow hole is in a position that is extremely susceptible to erosion, in order to protect the flow hole from collapse, an insulating wall (not shown) can be added to the outside of the pool wall of the flow hole. To secure the insulating wall, the present technical solution provides a truss 100, which is used to firmly fix the insulating wall to the flow hole.

[0028] The truss 100 may include a bottom steel 110, a surrounding profile 120, and a pressure steel 130. The bottom steel 110 may be a channel steel or an I-beam. The bottom steel 110 is installed at the bottom of the trough to support the trough and also serves as the fixing base for the entire truss 100. The surrounding profile 120 may be multiple, and the multiple surrounding profiles 120 are fixed from bottom to top to the outside of the insulation wall. Then, through a mounting mechanism such as a connecting rod, the surrounding profiles 120 are ensured to compress and fix the insulation wall. The pressure steel 130 also serves to fix the surrounding profiles 120 on the left and right sides.

[0029] There can be multiple pressing steels 130, which are arranged in a left-right direction on the upper side of the cover brick. The left and right ends of the pressing steel 130 are respectively fixedly connected to the uppermost left and right surrounding profiles 120, and the pressing steel 130 is used to pull the surrounding profiles 120 on both sides. At the same time, the pressing steel 130 is in the shape of a square tube, and includes a cavity that passes through the left and right sides. Then, an air outlet 131 is provided on the front side of the pressing steel 130. The air outlet 131 is connected to the cavity and faces the cover brick. In addition, the left end of the pressing steel 130 is connected to an air duct (not shown in the figure).

[0030] During operation, first secure the truss 100, ensuring that the pressure steel 130 faces the cover bricks. Then, connect the air duct to the end of the pressure steel 130 and the other end of the duct to the fan. The fan is then started, which blows cool air through the duct into the air duct. The cool air then passes through the cavity and out of the air outlet 131. A continuous stream of cool air flows from the air outlet 131 toward the cover bricks, effectively cooling them.

[0031] This solution cleverly utilizes the steel bar 130, allowing it to both secure the installation and guide the air, making the cooling device for the flow hole simpler, more compact, and neater. Because the steel bar 130 only partially covers the cover bricks, it does not affect the overall operation of the cover bricks, making it easier to inspect and maintain the cover bricks.

[0032] Furthermore, the flow hole is typically covered with multiple cover bricks, which are fixed to the top of the tank wall along the direction of the glass liquid's flow. Joints are inevitable between the bricks. These joints are often the most susceptible to corrosion, making cooling at these locations crucial. Furthermore, in a preferred embodiment, the air outlet 131 faces the gaps between the cover bricks.

[0033] In addition, since the gaps between the bricks are all slender, in order to achieve a better cooling effect, the air outlet is also slender. Moreover, in order to achieve a better blowing effect, the air outlet is provided with an air guide plate 133, which together with the air outlet forms a duckbill-shaped air outlet, thereby achieving a better blowing effect. Figure 2 It can be seen that the air guide plates 132 are arranged on both sides of the pressing steel 130, that is, there are two air outlets 131 on the same pressing steel 130, and the two air outlets 131 are symmetrically arranged. The air guide plates 133 can be fixed next to the air outlet 131 by bonding or welding. At the same time, the air guide plates 133 can make the wind coming out of the air outlet 131 blow downward at an angle. By changing the direction and angle of the blowing air, the air cooling effect can be improved. For example, the wind direction of the air outlet 131 can be adjusted according to the distance between the pressing steel 130 and the flow hole cover plate and the position of the gap, so that more cold air can blow on the gap, thereby improving the cooling effect.

[0034] In addition, as mentioned above, since the operation of the cover bricks needs to be inspected during the production process, it is desirable to minimize obstruction of the cover bricks. The end of the pressing steel 130 needs to be connected to the air duct. In order to reduce the obstruction of the line of sight by the air duct, the air duct is preferably connected below the pressing steel 130. Specifically, an air inlet 132 is provided on the lower side of the pressing steel 130, and the air duct is connected to the air inlet 132. It is known that the pressing steel 130 is in the shape of a square tube. When the pressing steel 130 is first formed, the left and right directions are through. For ease of use, it is necessary to first seal the left and right sides of the pressing steel 130, then open the air inlet 132 on the lower side of the pressing steel 130, and open air outlets 131 on the front and rear sides of the pressing steel 130 (which can be processed by laser cutting). The air duct is then connected to the air inlet 132. Of course, the reliability of the connection between the air duct and the air inlet 132 needs to be guaranteed. The air duct is then connected to a fan, and the cold air generated by the fan passes through the air duct and enters the cavity of the pressing steel 130 . Since both sides of the pressing steel 130 are closed, the cold air can only be blown out through the air outlet 131 .

[0035] As a further preferred embodiment, two air inlets 132 may be provided, one on the left and one on the right side of the pressing steel 130. When in operation, air is blown into the two air inlets 132 at the same time, thereby increasing the air volume of the air outlet 131. Furthermore, since the air outlet 131 is in a strip shape, if air is only fed from one side, uneven air flow may occur. However, by feeding air from both sides, the uniformity of the air outlet 131 can be improved, thereby enhancing the cooling effect.

[0036] In addition, in order to achieve the installation and fixation of the pressure steel 130, the truss 100 further includes a tie rod 140, which is used to fix the pressure steel 130 to the bottom steel 110. The lower end of the tie rod 140 is fixed to the bottom steel 110, and the upper end of the tie rod 140 fixes the pressure steel 130.

[0037] Specifically, the truss 100 also includes a support 150, on which two pressing steels 130 are fixed. In addition to fixing the pressing steel 130, the support 150 also serves to seal the ends of the pressing steel 130. The support 150 includes a sealing plate, which is fixed to the left or right end of the pressing steel 130. The sealing plate can be fixed to both ends of the pressing steel 130 by welding or clamping. At the same time, in order to improve the sealing performance, a sealing ring can be provided between the sealing plate and the end of the pressing steel 130. Then the pull rod 140 passes through the support 150, and the upper section of the pull rod 140 is provided with at least one threaded section, and the threaded section passes through the support 150, and then the threaded end is tightened by a nut, and the support 150 and the pressing steel 130 are fixed by the nut.

[0038] As mentioned above, since the cover bricks need to be hot-tiled during work, the pressing steel 130 needs to be removed during the work, and the pressing steel 130 is decorated by the pull rod 140 and the nut, which facilitates the work. Moreover, by fixing two pressing steels 130 on a support 150 at the same time, the installation structure can be simplified and the installation efficiency can be improved. In addition, in order to improve the reliability of the installation, there are two nuts, and the double nut method can ensure that the pressing steel 130 is better fixed on the truss 100. As a further improvement of the above technical solution, a filter is provided at the air inlet. The provision of a filter at the air inlet can reduce the risk of impurities blowing into the gaps in the cover bricks.

[0039] As a further preferred embodiment, an air volume regulating device is installed at the air inlet to adjust the air volume. Specifically, the air volume regulating device can be a manual air valve or an electric air valve connected to a controller, which can adjust the air volume to meet the cooling requirements.

[0040] The above specifically describes the preferred embodiments of the present invention, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A furnace flow hole cooling device, comprising a flow hole, a cover brick provided above the flow hole, characterized in that: It includes a truss, which surrounds the liquid flow hole. The truss includes a pressing steel, which covers the top of the cover brick. The pressing steel is tubular and includes a cavity. One end of the pressing steel is connected to the air duct. The body of the pressing steel is provided with an air outlet, and the air outlet faces the cover brick.

2. The kiln flow hole cooling device according to claim 1, characterized in that: There are multiple cover bricks, and the air outlet faces the gaps between the cover bricks.

3. The kiln flow hole cooling device according to claim 1, characterized in that: The air outlet is elongated.

4. The kiln flow hole cooling device according to claim 1, characterized in that: The outlet direction of the air outlet is inclined downward.

5. The kiln flow hole cooling device according to claim 1, characterized in that: An air inlet is provided below one end of the pressing steel, and the air duct is connected to the air inlet.

6. The furnace flow hole cooling device according to claim 1, characterized in that: The truss further includes a tension rod, and the compression steel is connected to the tension rod.

7. The furnace flow hole cooling device according to claim 6, characterized in that: The truss comprises a support, the pressing steel is fixed on the support, and the pull rod is connected to the support via a nut.

8. The furnace flow hole cooling device according to claim 7, characterized in that: Two pressing steels are fixed on the support, and the pull rod is located between the two pressing steels.

9. The furnace flow hole cooling device according to claim 5, characterized in that: An air volume regulating device is installed at the air inlet to adjust the air volume.

10. The furnace flow hole cooling device according to claim 1, characterized in that: The truss also includes a surrounding profile, which abuts against the outer side of the tank wall of the kiln.

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