Kiln throat cooling device

Abstract

The invention discloses a kiln throat cooling device which comprises a throat, a cover plate brick is arranged above the throat, the throat cooling device comprises a truss, the truss surrounds the throat, the truss 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 invention has the following beneficial effects: the fixing structure of the cover plate brick of the throat and the cooling of the cooling air pipe are integrated on the pressing steel; the cover plate brick is safely fixed, and meanwhile the cooling effect is achieved.

Description

Technical Field

[0001] The invention relates to a glass furnace, in particular to a cooling device for a furnace flow hole. Background Art

[0002] Glass kiln is a kind of melting device that must be possessed by the glass manufacturing industry, and the flow hole of the glass kiln is an important part. The melted and clarified glass liquid is transported to the distribution channel and then to the supply channel to produce products. On the one hand, the flow hole is a narrow channel structure, which undertakes the transportation mission of the entire life cycle of the glass kiln. The glass liquid flows through the flow hole at a fast speed, and the glass liquid erodes this part of the brick material at the fastest speed. This is also the reason why the flow hole structure is the weakest position of the glass kiln; on the other hand, the refractory bricks around the flow hole are eroded and enter the glass liquid, changing the composition of the glass liquid to form glass tendons, stripes or stones on the surface of the glass substrate, which seriously affects the quality and output of the glass. In the glass melting furnace, the flow hole cover brick is used at the flow hole position to isolate the flow hole from the external environment. The flow hole cover brick will be washed and eroded by the molten glass liquid during the glass melting flow, causing the kiln flow hole to penetrate, so that the glass liquid overflows from the furnace body under pressure, causing the furnace body to leak, which also becomes a key factor affecting the life of the melting furnace. 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 entrance of the flow hole cover brick has become a difficult problem that technical personnel in this field urgently need to solve. Summary of the invention The technical problem to be solved by the present invention is to provide a kiln flow liquid 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.

[0003] The solution of the present invention to solve its technical problem is: a kiln flow hole cooling device, including a flow hole, a cover brick is arranged above the flow hole, and also includes a truss, the truss surrounds the flow hole, the truss includes a press steel, and the press steel covers the top of the cover brick; the press steel is tubular, the press steel includes a cavity, one end of the press steel is connected to the air duct, and the body of the press steel is provided with an air outlet, and the air outlet faces the cover brick.

[0004] The beneficial effect of the present invention is that the present invention integrates the fixing structure of the cover brick of the flow hole and the cooling of the cooling air duct into an integrated design and is integrated on the pressing steel; while meeting the safe fixing of the cover brick, it also has a cooling effect.

[0005] As a further improvement of the above technical solution, there are multiple cover bricks, 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 joint between bricks is the most susceptible to glass liquid erosion, so cooling at this position is crucial.

[0006] As a further improvement of the above technical solution, the air outlet is slender and can be arranged in a duckbill-like slender shape to increase the wind speed of the air outlet and improve the cooling effect.

[0007] As a further improvement of the above technical solution, the outlet direction of the air outlet is inclined downward. The oblique downward blowing can further improve the cooling effect of the gaps in the cover bricks.

[0008] As a further improvement of 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 blocking the upper side of the pressing pipe and affecting the staff's observation of the cover bricks.

[0009] As a further improvement of the above technical solution, the truss further comprises a tie rod, and the pressure steel is connected to the tie rod. By utilizing the tie rod principle, the pressure steel can be firmly fixed on the upper side of the cover brick.

[0010] As a further improvement of the above technical solution, the truss includes a support, the pressure steel is fixed on the support, and the pull rod is connected to the support via a nut. The pull rod is provided with a threaded section, and the nut is threadedly connected to the threaded section of the pull rod, so that the pressure steel can be easily replaced.

[0011] 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.

[0012] As a further improvement of the above technical solution, a filter screen is provided at the air inlet. The filter screen is provided at the air inlet to reduce the risk of impurities blowing into the gaps of the cover bricks.

[0013] 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.

[0014] As a further improvement of the above technical solution, the truss also includes a surrounding profile, and the surrounding profile is close to the outer side of the pool wall of the kiln. The truss can also play the role of fixing the flow hole of the kiln, preventing the collapse of the flow hole, and extending the service life of the flow hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0016] Figure 1 It is a three-dimensional schematic diagram of the present invention; Figure 2 It is a top view of the pressed steel of the present invention.

[0017] Reference numerals: Truss 100, bottom steel 110, surrounding profile 120, pressed steel 130, air outlet 131, air inlet 132, air guide plate 133, tie rod 140, support 150 DETAILED DESCRIPTION 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 technicians in this field without creative work are all 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.

[0018] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and 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, and therefore should not be understood as a limitation on the present invention.

[0019] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0020] In the description of the present invention, unless otherwise clearly defined, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and the technical personnel in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution. At the same time, the various technical features in the invention can be combined interchangeably without conflicting with each other.

[0021] During the operation of the glass kiln, the glass liquid enters the distribution channel through the flow hole. The cross-section of the flow hole is small. The glass liquid erodes the flow hole every moment during the entire kiln period. The contact surface of the flow hole cover is at the intersection of solid, liquid and gas, which is more susceptible to erosion. The eroded flow hole cover will become thinner and thinner, which poses a risk of leakage in the later stage of the kiln operation. Therefore, it is very important to cool the flow hole cover during operation. In the prior art, there is a solution of arranging soft air ducts and using soft air ducts to directly cool the flow hole cover. However, since the air outlet of the soft air duct can generally only face one brick, in order to achieve a sufficient cooling effect, multiple soft air ducts need to be arranged for cooling. Since the overall space of the flow hole is not much, after arranging multiple soft air ducts in a small space, the equipment site will be very chaotic. In addition, since the flow hole cover needs to be frequently inspected and repaired, and hot tiling operations need to be performed on the weak positions that are severely eroded in the later stage, too many soft air ducts bring great trouble to the on-site construction.

[0022] In order to overcome the various deficiencies in the prior art, the inventors have 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, the brick structure can be safely fixed while also having a cooling effect. Figure 1-2 : A kiln flow hole cooling device includes a flow hole (not shown in the figure), the flow hole includes a pool wall, and the top of the pool wall is provided with a cover brick (not shown in the figure). It can be understood that the pool wall can include a left wall and a right wall, the left wall and the right wall are arranged on the left and right sides of the flow hole, and the left wall and the right wall are arranged on the left and right sides of the material trough. The left wall, the right wall, the material trough and the cover bricks are used to surround the flow hole together, so that after the glass liquid comes out of the kiln, it is transported forward through the flow hole and enters the material channel. Since the flow hole is in a position that is extremely susceptible to erosion, in order to protect the flow hole from collapse, an insulation wall (not shown in the figure) can be added outside the pool wall of the flow hole. In order to fix the insulation wall, the technical solution provides a truss 100, and the insulation wall is firmly fixed to the flow hole by the truss 100.

[0023] The truss 100 may include a bottom steel 110, a surrounding profile 120, and a pressing steel 130. The bottom steel 110 may be a channel steel or an I-beam. The bottom steel 110 is arranged at the bottom of the trough to support the trough. In addition, the bottom steel 110 is also the fixing base of the entire truss 100. The surrounding profile 120 may be multiple, and the multiple surrounding profiles 120 are fixed from bottom to top on the outside of the insulation wall, and then through the installation mechanism such as the connecting rod, it is ensured that the surrounding profile 120 plays a role of pressing and fixing the insulation wall. Among them, the pressing steel 130 also plays a role in fixing the surrounding profiles 120 on the left and right sides.

[0024] There can be multiple pressing steels 130, which are arranged on the upper side of the cover brick in the left-right direction. The left and right ends of the pressing steel 130 are respectively fixedly connected to the uppermost left and right sides of the surrounding profiles 120, and the surrounding profiles 120 on both sides are pulled by the pressing steel 130. At the same time, the pressing steel 130 is in the shape of a square tube, and the pressing steel 130 includes a cavity that passes through the left and right sides, and then an air outlet 131 is provided on the front side of the pressing steel 130, and the air outlet 131 is connected to the cavity, and the air outlet 131 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).

[0025] When working, first install and fix the truss 100, and make the pressure steel 130 face the cover brick. Then connect the air duct to the end of the pressure steel 130, and connect the other end of the air duct to the fan. Then start the fan, the fan blows the cold air into the air duct after passing through the air duct, and then the cold air passes through the cavity and blows out from the air outlet 131. The continuous cold air blows from the air outlet 131 to the cover brick, which has a good cooling effect on the cover brick.

[0026] This solution cleverly utilizes the pressing steel 130, so that the pressing steel 130 has both the functions of fixed installation and wind guiding, thereby making the cooling device of the flow hole simpler, more compact and neater. Since the pressing steel 130 only covers part of the cover bricks, it does not affect the staff's observation of the overall use of the cover bricks, which facilitates the inspection and maintenance of the cover bricks of the flow hole.

[0027] In addition, generally, a plurality of cover bricks are provided on the flow hole, and the plurality of cover bricks are fixed on the top of the pool wall along the flow direction of the glass liquid, and there will inevitably be joints between the bricks. The joints are often the most severely corroded places, so cooling at this location is very important. Further as a preferred embodiment, the air outlet 131 faces the gap between the cover bricks.

[0028] 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, an air guide plate 133 is set at the air outlet, and the air guide plate 133 and the air outlet together form a duckbill-style blowing 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 beside 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 downwardly and obliquely, and the wind cooling effect can be better by changing the direction and angle of the blowing. For example, the wind direction of the air outlet 131 is adjusted according to the distance between the pressing steel 130 and the flow hole cover plate and the position between the gaps, so that more cold wind can blow on the gaps to improve the cooling effect.

[0029] In addition, as mentioned above, since the operation of the cover brick needs to be inspected during the production process, it is hoped that the cover brick can be shielded as much as possible. The end of the pressing steel 130 needs to be connected to the air duct. In order to reduce the shielding of the line of sight by the air duct, preferably, the air duct is connected below the pressing steel 130. Specifically, the lower side of the pressing steel 130 is provided with an air inlet 132, and the air duct is connected to the air inlet 132. It is known that the pressing steel 130 is 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 close the left and right sides of the pressing steel 130, and then open the air inlet 132 on the lower side of the pressing steel 130, and open the air outlet 131 on the front and rear sides of the pressing steel 130 (which can be processed by laser cutting). Then the air duct is connected to the air inlet 132. Of course, the connection reliability between the air duct and the air inlet 132 needs to be ensured. Then the air duct is connected to the 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 .

[0030] As a further preferred embodiment, two air inlets 132 can be provided, and the two air inlets 132 are respectively provided on the left and right sides of the pressing steel 130. When working, air is blown into the two air inlets 132 at the same time, so that the air volume of the air outlet 131 can be increased. Moreover, since the air outlet 131 is in a strip shape, if only one side is inlet, it is easy to cause uneven air outlet. By inletting air from both sides, the uniformity of the air outlet 131 can be improved, thereby improving the cooling effect.

[0031] In addition, in order to realize 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 and 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.

[0032] 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 ends 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.

[0033] 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. Setting a filter at the air inlet can reduce the risk of impurities blowing into the gaps of the cover bricks.

[0034] 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, and the air volume is adjusted by the air valve to meet the cooling requirements. The preferred embodiments of the present invention are specifically described above, 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 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 is 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 in an elongated shape.

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 furnace 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 also 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 fixedly arranged 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 comprises a surrounding profile, which abuts against the outer side of the tank wall of the kiln.

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