Cooling structure of kiln throat pipe connecting end

Abstract

The utility model belongs to the technical field of glass manufacturing, and particularly relates to a cooling structure of a kiln throat pipe connecting end, which comprises a water cooling assembly and a first air cooling assembly, the water cooling assembly comprises a water supply pipe, a water outlet pipe and a cooling water bent pipe, the cooling water bent pipe is connected with the water supply pipe and the water outlet pipe, and the cooling water bent pipe is attached to a throat pipe brick; the cooling water bent pipe is positioned between the metal mounting frame and the kiln tank wall; the first air cooling assembly comprises a first air supply pipe and a first air outlet pipe which are connected with each other, the first air outlet pipe is provided with a plurality of first air injection holes distributed in a dispersed mode, the first air outlet pipe is arranged on the side face of the throat pipe brick, and the first air injection holes face the throat pipe brick. Through division of labor of the two cooling modes, the main heat conduction path of the connecting end and the side face heat radiation / convection area are covered, the overall cooling uniformity is remarkably improved, heat erosion at the connecting position of the throat pipe brick and the pool wall can be reduced, material aging is delayed, and the service life is prolonged.

Description

Technical Field

[0001] This application belongs to the field of glass manufacturing technology, specifically relating to a cooling structure for the connection end of a kiln throat pipe. Background Technology

[0002] The furnace throat is the transitional connecting component between the furnace and the precious metal channel. One end connects to the furnace wall, and the other end connects to the platinum channel. After the molten glass flows into the precious metal channel through the throat, it is regulated to achieve a uniform and stable temperature to meet the requirements of the forming process. The throat brick is the main structural material of the furnace throat, directly bearing the erosion of the high-temperature airflow and materials. Its main function is to protect the throat structure from high-temperature corrosion and mechanical wear. For example, the throat bricks of substrate glass furnaces typically employ a water-cooled structure design to achieve uniform cooling and extend service life.

[0003] The throat brick is fixed to the outlet of the kiln pool wall using throat pad bricks and a metal mounting bracket. The connection between the throat brick and the outlet of the kiln pool wall (also known as the kiln throat connection end) experiences higher temperatures. Existing technologies mostly use water or air cooling for the kiln throat, with few cooling structures specifically designed for the outlet connection between the throat brick and the kiln pool wall. Furthermore, it is difficult to cool different parts of the connection point, which presents certain limitations. Utility Model Content

[0004] The technical problem to be solved by this application is to provide a cooling structure for the connection end of the kiln throat pipe, so as to solve the problem that the prior art is difficult to cool different parts of the connection between the throat pipe brick and the discharge port of the kiln pool wall.

[0005] This application provides a cooling structure for the connection end of a kiln throat pipe, including:

[0006] The water-cooled assembly includes a water supply pipe, a water outlet pipe, and a cooling water bend. The cooling water bend is connected to the water supply pipe and the water outlet pipe. The cooling water bend is attached to the throat brick and is located between the metal mounting bracket and the kiln pool wall.

[0007] The first air-cooling assembly includes a first air supply pipe and a first air outlet pipe connected to each other. The first air outlet pipe has a plurality of first air jet holes distributed in a dispersed manner. The first air outlet pipe is disposed on the side of the throat brick and the plurality of first air jet holes face the throat brick.

[0008] Optionally, the number of water-cooling components is two, and the two cooling water bends form a ring structure for surrounding the throat brick. The two ends of each cooling water bend are connected to the water supply pipe and the water outlet pipe, respectively.

[0009] Optionally, the two cooling water bends are arranged in an upper and lower configuration.

[0010] Optionally, the number of the first air-cooling components is two, with the two first air outlet pipes symmetrically distributed and located on both sides of the throat brick.

[0011] Optionally, the first exhaust pipe has an arc-shaped structure, and the plurality of first jet holes are located inside the arc-shaped structure of the first exhaust pipe.

[0012] Optionally, the first air-cooling assembly further includes a plurality of first nozzles, which are respectively disposed on a plurality of first jet holes.

[0013] Optionally, the shape of the first nozzle includes at least one of cylindrical, trumpet-shaped, and flat shapes.

[0014] Optionally, the cooling structure further includes a second air-cooling assembly, which includes a second air supply pipe and a second air outlet pipe connected to each other. The second air outlet pipe has a plurality of second air jet holes distributed in a dispersed manner. The second air outlet pipe is disposed between the metal mounting bracket and the kiln pool wall, and the plurality of second air jet holes face the cooling water bend.

[0015] Optionally, the number of the second air-cooling components is two, with the two second air outlet pipes partially surrounding the cooling water bend.

[0016] Optionally, the second exhaust pipe has an L-shaped structure, and a plurality of the second jet holes are located inside the L-shaped structure of the second exhaust pipe.

[0017] The beneficial effects of this application are that by using a cooling water bend in the water-cooled assembly to adhere to the surface of the throat brick, the circulating cooling water continuously absorbs heat from the high-temperature area, achieving efficient heat conduction in the high-temperature area of ​​the connection end and avoiding blind spots in traditional overall cooling. The cooling water bend is arranged between the metal mounting frame and the kiln pool wall, directly covering the high-temperature hot spot area of ​​the connection end, and efficiently reducing the temperature of the throat brick by utilizing the thermal conductivity of water. Uniform cooling is achieved through stable water flow, reducing thermal stress cracking of the material caused by temperature gradients. Gas (such as compressed air or inert gas) is transported to the first outlet pipe through the first gas supply pipe and ejected from the dispersed first jet holes, forming a uniform airflow covering the side of the throat brick. The airflow carries away surface heat through forced convection and may form an air film to isolate the high-temperature environment, supplementing areas that are difficult to cover by water cooling (such as narrow or complex structures) that are easily eroded on the side.

[0018] This application combines water cooling (high specific heat capacity) and air cooling (rapid response) to achieve both continuity and flexibility, making it suitable for complex heat load environments. The water-cooled bend is embedded between the mounting bracket and the pool wall, while the air-cooled pipes are arranged on the side, maximizing space utilization and avoiding interference with other components. By dividing the cooling into two methods, the main heat conduction path at the connection end (water cooling) and the side heat radiation / convection area (air cooling) are covered, significantly improving overall cooling uniformity. This also helps reduce thermal erosion at the connection between the throat brick and the pool wall, delaying material aging and extending service life. Attached Figure Description

[0019] Figure 1 A schematic diagram of the cooling structure provided in this application;

[0020] Figure 2 A partial structural diagram of the cooling structure provided in this application;

[0021] Figure 3 This is a schematic diagram of the structure of the water-cooling assembly provided in this application;

[0022] Figure 4 A schematic diagram of the structure of the first air-cooling component provided in this application;

[0023] Figure 5 This is a schematic diagram of the structure of the second air-cooling component provided in this application;

[0024] Figure 6 A schematic diagram of the structure of the first nozzle provided in this application;

[0025] Figure 7 A schematic diagram of the structure of the first nozzle provided in this application;

[0026] Figure 8 A schematic diagram of the structure of the first nozzle provided in this application;

[0027] Figure 9 A schematic diagram of the throat brick provided in this application.

[0028] In the figure: 1.1, throat pad brick; 1.2, throat brick; 1.21, annular groove; 1.22, limiting groove; 1.3, metal mounting bracket; 1.4, kiln pool wall; 1.5, grating plate; 10, water cooling assembly; 110, water supply pipe; 120, water outlet pipe; 130, cooling water bend; 20, first air cooling assembly; 210, first air supply pipe; 220, first air outlet pipe; 221, first jet hole; 230, first nozzle; 30, second air cooling assembly; 310, second air supply pipe; 320, second air outlet pipe; 321, second jet hole; 40, pipe body mounting bracket. Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0030] like Figure 1-9 As shown, the present application provides a cooling structure for the throat pipe connection end of a kiln, comprising: a water-cooling assembly 10 and a first air-cooling assembly 20. The water-cooling assembly 10 includes a water supply pipe 110, a water outlet pipe 120, and a cooling water bend 130. The cooling water bend 130 is connected to the water supply pipe 110 and the water outlet pipe 120. The cooling water bend 130 is attached to the throat pipe brick 1.2 and is located between the metal mounting bracket 1.3 and the kiln pool wall 1.4. The first air-cooling assembly 20 includes a first air supply pipe 210 and a first air outlet pipe 220 connected to each other. The first air outlet pipe 220 has a plurality of first air jet holes 221 distributed in a dispersed manner. The first air outlet pipe 220 is disposed on the side of the throat pipe brick 1.2 and the plurality of first air jet holes 221 face the throat pipe brick 1.2.

[0031] Compared with the prior art, the cooling structure of the kiln throat connection end provided in this application uses the cooling water bend 130 in the water-cooling component 10 to adhere to the surface of the throat brick 1.2. Circulating cooling water continuously absorbs heat from the high-temperature area, achieving efficient heat conduction in the high-temperature area of ​​the connection end and avoiding blind spots in traditional overall cooling. The cooling water bend 130 is arranged between the metal mounting bracket 1.3 and the kiln pool wall 1.4, directly covering the high-temperature hot spot area of ​​the connection end, utilizing the thermal conductivity of water to efficiently reduce the temperature of the throat brick 1.2. Stable water flow achieves uniform cooling, reducing material thermal stress cracking caused by temperature gradients. Gas (such as compressed air or inert gas) is delivered to the first outlet pipe 220 through the first gas supply pipe 210 and ejected from the dispersed first jet holes 221, forming a uniform airflow covering the side of the throat brick 1.2. The airflow carries away surface heat through forced convection and may form an air film to isolate the high-temperature environment, supplementing areas that are difficult to cover with water cooling (such as narrow or complex structures) that are easily eroded on the sides.

[0032] This application combines water cooling (high specific heat capacity) and air cooling (rapid response) to achieve both continuity and flexibility, making it suitable for complex heat load environments. The water-cooled bend is embedded between the mounting bracket and the pool wall, while the air-cooled pipes are arranged on the side, maximizing space utilization and avoiding interference with other components. By dividing the cooling into two methods, the main heat conduction path (water cooling) at the connection end and the side heat radiation / convection area (air cooling) are covered, significantly improving overall cooling uniformity. This also helps reduce thermal erosion at the connection between the throat brick 1.2 and the pool wall, delaying material aging and extending service life.

[0033] In one possible implementation, such as Figure 1 and Figure 3 The water-cooling assembly 10 consists of two cooling water bends 130 forming a ring structure around the throat brick 1.2. Each cooling water bend 130 is connected at both ends to a water supply pipe 110 and an outlet pipe 120, respectively. Specifically, the double cooling water bends 130 form a ring structure, covering a larger circumferential area of ​​the throat brick 1.2. This dual-water circulation enhances cooling capacity, and the dual-water system can serve as a backup for each other. Even if one water path fails, basic cooling functionality can still be maintained. Furthermore, the ring structure formed by the two cooling water bends 130 is easier to manufacture than a single ring structure and is also easier to install between the metal mounting bracket 1.3 and the kiln pool wall 1.4, which helps reduce costs and simplify the installation process.

[0034] It should be noted that, in order to facilitate the installation of the cooling water bend 130 and increase the contact area between the cooling water bend 130 and the throat brick 1.2, the throat brick 1.2 is designed to have an annular groove 1.21, and the two cooling water bends 130 are embedded in the annular groove 1.21.

[0035] In one possible implementation, the width of the annular groove 1.21 is 15mm-20mm. For example, the width of the annular groove 1.21 can be any typical but non-limiting point value or a range between any two point values, such as 15mm, 16mm, 17mm, 18mm, 19mm, or 20mm. The depth of the annular groove 1.21 is 15mm-20mm. For example, the depth of the annular groove 1.21 can be any typical but non-limiting point value or a range between any two point values, such as 15mm, 16mm, 17mm, 18mm, 19mm, or 20mm.

[0036] In one embodiment, the annular groove 1.21 is in the shape of a circular ring or a rounded rectangular ring.

[0037] In one embodiment, after the throat brick 1.2 is installed at the throat of the pool wall, its bottom is supported by the throat pad brick 1.1. Limiting grooves 1.22 are opened on both sides of the outside of the throat brick 1.2. The metal mounting bracket 1.3 is composed of two angle steels. The throat brick 1.2 is fixed by the two angle steels cooperating with the two limiting grooves 1.22 respectively. The bottom of the two angle steels is fixed to the bottom beam of the kiln by welding or bolts, and the top is fixed to the grating plate 1.5 by bolts.

[0038] In some embodiments, the cooling water bend 130 can be a rectangular or square pipe, or a round pipe. The water supply pipe 110 and the water outlet pipe 120 can be rectangular or square pipes, or round pipes.

[0039] In one possible implementation, the two cooling water bends 130 are arranged vertically. The layered bends cover the top and bottom areas of the throat brick 1.2, providing zoned cooling for different height heat load differences. Furthermore, the vertical arrangement avoids lateral pipe crossing, saving space and facilitating maintenance.

[0040] It should be noted that the two water supply pipes 110 and the two water outlet pipes 120 are respectively connected to the four ends of the two cooling water bends 130. The two water supply pipes 110 or the two water outlet pipes 120 can be on the same side or opposite sides, so that the water flow of the upper and lower water cooling components 10 is in the same direction or opposite directions, and the water flow direction can be adjusted according to the cooling needs.

[0041] In one possible implementation, both water supply pipes 110 and two water outlet pipes 120 are connected to the outer grating plate 1.5 of the kiln pool wall 1.4 via a pipe mounting bracket 40. The pipe mounting bracket 40 consists of angle steel plates, U-bolts, and corresponding nuts. The angle steel plates are welded or bolted to the grating plate 1.5. Tightening the nuts causes the U-bolts to engage with the angle steel plates to clamp the water supply pipes 110 and water outlet pipes 120. It should be noted that the first air supply pipe 210 and the first air outlet pipe 220 are also connected to the outer grating plate 1.5 of the kiln pool wall 1.4 via the pipe mounting bracket 40.

[0042] In one possible implementation, there are two first air-cooling components 20, with two first air outlet pipes 220 symmetrically distributed on both sides of the throat brick 1.2. Specifically, the dual-sided air cooling forms a symmetrical airflow field, covering the left and right surfaces of the throat brick 1.2 and eliminating dead zones caused by unilateral cooling. This prevents asymmetric thermal stress caused by unilateral cooling, reduces the risk of structural deformation, and the dual-sided air outlets can cover a larger surface area, enhancing the overall cooling effect on the sides.

[0043] In one possible implementation, the first exhaust pipe 220 has an arc-shaped structure, and multiple first jet holes 221 are located inside the arc-shaped structure of the first exhaust pipe 220. In this way, the arc-shaped design matches the shape of the throat brick 1.2, the airflow path is closer to the surface, reducing energy loss, and the inward jetting of the first jet holes 221 can form a local high-pressure zone, enhancing the impact cooling effect on the side of the throat brick 1.2.

[0044] In one possible implementation, the first air-cooling assembly 20 further includes a plurality of first nozzles 230, which are respectively disposed on a plurality of first jet holes 221. The nozzles regulate the airflow speed and direction by changing their aperture or shape, achieving refined airflow distribution. Airflow parameters (such as flow rate and diffusion angle) can be adjusted via the nozzles to adapt to the cooling needs of different areas. It should be noted that the first nozzles 230 can be designed as detachable structures for easy cleaning or replacement, preventing the jet holes from being clogged by high-temperature dust.

[0045] In one possible implementation, such as Figure 6-8 As shown, the shape of the first nozzle 230 includes at least one of the following: cylindrical, flared, and flat. The nozzle type can be selected according to different operating conditions to flexibly cope with complex thermal environments.

[0046] In one possible implementation, the cooling structure further includes a second air-cooling assembly 30. The second air-cooling assembly 30 includes a second air supply pipe 310 and a second air outlet pipe 320 connected to each other. The second air outlet pipe 320 has a plurality of dispersed second air jet holes 321. The second air outlet pipe 320 is positioned between the metal mounting bracket 1.3 and the kiln pool wall 1.4, with the plurality of second air jet holes 321 facing the cooling water bend pipe 130. Specifically, the second air-cooling assembly 30 provides auxiliary cooling to the exterior of the water-cooled bend pipe, reducing the surface temperature of the bend pipe through airflow, while simultaneously blowing away accumulated ash. Furthermore, the air cooling assists the water cooling, improving the overall cooling efficiency.

[0047] It should be noted that the second air supply pipe 310 and the second air outlet pipe 320 are also connected to the outer grating plate 1.5 of the kiln pool wall 1.4 via the pipe mounting bracket 40.

[0048] In one possible implementation, there are two second air-cooling components 30, with two second air outlet pipes 320 partially enclosing the cooling water bend 130. Specifically, the dual air-cooling pipes formed by the two second air outlet pipes 320 partially enclose the outer side and top / bottom of the water-cooling bend, creating a local air curtain to isolate the high-temperature environment. This semi-enclosed structure reduces heat radiation to the water-cooling bend, forming an air curtain that prevents the high-temperature airflow from the kiln from directly impacting the water-cooling component 10, thus reducing the heat load.

[0049] In one possible implementation, such as Figure 5 As shown, the second exhaust pipe 320 has an L-shaped structure, and multiple second jet holes 321 are located inside the L-shaped structure of the second exhaust pipe 320. Specifically, the L-shaped design of the second exhaust pipe 320 matches the structure of the throat brick 1.2 and the cooling water bend 130, which is beneficial to improving the cooling effect.

[0050] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of protection of this application is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this application as described above, which are not provided in detail for the sake of brevity.

[0051] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

Claims

1. A cooling structure of a connecting end of a throat of a furnace, characterized by, The application relates to a cooling structure of a kiln, which comprises: a water cooling assembly (10) comprising a water supply pipe (110), a water outlet pipe (120) and a cooling water elbow (130), wherein the cooling water elbow (130) is connected with the water supply pipe (110) and the water outlet pipe (120), the cooling water elbow (130) is attached to a throat brick (1.2), and the cooling water elbow (130) is located between a metal mounting frame (1.3) and a kiln pool wall (1.4); a first gas cooling assembly (20) comprising a first gas supply pipe (210) and a first gas outlet pipe (220) connected with each other, wherein the first gas outlet pipe (220) is provided with a plurality of first gas injection holes (221) distributed in a scattered mode, the first gas outlet pipe (220) is arranged on the side of the throat brick (1.2), and the plurality of first gas injection holes (221) are directed towards the throat brick (1.2).

2. The cooling structure according to claim 1, characterized by The number of the water cooling assembly (10) is two, and the two cooling water elbows (130) form a ring structure for surrounding the throat brick (1.2), and the two ends of each cooling water elbow (130) are connected with the water supply pipe (110) and the water outlet pipe (120) respectively.

3. The cooling structure according to claim 2, characterized by The two cooling water elbows (130) are arranged in an up-down structure.

4. Cooling structure according to any one of claims 1-3, characterized in that The number of the first gas cooling assembly (20) is two, and the two first gas outlet pipes (220) are symmetrically arranged on the two sides of the throat brick (1.2).

5. The cooling structure according to claim 4, characterized by The first gas outlet pipe (220) is in an arc structure, and the plurality of first gas injection holes (221) are located on the inner side of the arc structure of the first gas outlet pipe (220).

6. The cooling structure according to any one of claims 1 to 3, 5, wherein The first gas cooling assembly (20) further comprises a plurality of first nozzles (230), and the plurality of first nozzles (230) are arranged on the plurality of first gas injection holes (221) respectively.

7. The cooling structure according to claim 6, characterized by The shape of the first nozzle (230) comprises at least one of a straight cylinder, a horn and a flat shape.

8. The cooling structure according to any one of claims 1 to 3, 5, 7, characterized by The cooling structure further comprises a second gas cooling assembly (30), wherein the second gas cooling assembly (30) comprises a second gas supply pipe (310) and a second gas outlet pipe (320) connected with each other, the second gas outlet pipe (320) is provided with a plurality of second gas injection holes (321) distributed in a scattered mode, the second gas outlet pipe (320) is arranged between the metal mounting frame (1.3) and the kiln pool wall (1.4), and the plurality of second gas injection holes (321) are directed towards the cooling water elbow (130).

9. The cooling structure according to claim 8, characterized by The number of the second gas cooling assembly (30) is two, and the two second gas outlet pipes (320) semi-enclose the cooling water elbow (130).

10. The cooling structure according to claim 9, characterized by The second gas outlet pipe (320) is in an L-shaped structure, and the plurality of second gas injection holes (321) are located on the inner side of the L-shaped structure of the second gas outlet pipe (320).

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