Hot-state protection device for rolled glass overflow lip brick

Abstract

The utility model relates to the technical field of glass manufacturing, in particular to a rolled glass overflow mouth lip brick thermal state protection device which comprises a tail brick (1) and a lip brick (2). A first cooling pipe structure is arranged between the tail brick (1) and the lip brick (2); the lip brick (2) comprises a lip brick cambered surface (3); a second cooling pipe structure is arranged on the lip brick cambered surface (3); the first cooling pipe structure blows out cooling air at the top of a contact seam between the tail brick and the lip brick, and the position, close to the contact seam, of the lip brick can be effectively cooled. The second cooling pipe structure can effectively cool the lip brick cambered surface of the lip brick, so that the temperature difference change before and after machine change is reduced, the lip brick is prevented from being exploded, the structural integrity of the lip brick is guaranteed, and the service life of the lip brick is prolonged. The number and frequency of opening bubbles below the glass plate are obviously reduced, the frequency and time of color difference printing are obviously reduced, and the service life of the lip tile is effectively prolonged.

Description

Technical Field

[0001] This utility model relates to the field of glass manufacturing technology, and more specifically, to a hot protection device for the overflow lip brick of rolled glass. Background Technology

[0002] The space between the top surface of the overflow tail brick and the lip brick is filled with high-temperature resistant fiber cotton, but there is still a large gap between the tail brick and the lip brick. The glass melt flows in the direction shown in the figure. The glass melt first flows to the top surface of the overflow tail brick, then through the contact seam between the tail brick and the lip brick, and then through the lip brick surface before flowing to the calender for the glass forming process. The contact seam between the tail brick and the lip brick and the curved surface of the lip brick are prone to cracking after the calender is changed and the lead is completed. This can lead to abnormal glass quality problems such as under-plate bubbles and severe color difference marks, resulting in a large loss of production. The lip brick is also prone to corrosion, which can lead to failure to meet normal production requirements, reduce the number of online days of the calender, and cause frequent machine changes.

[0003] The applicant found through a search that Chinese patent document with publication number 220866034U disclosed a protective device for a lip brick on April 30, 2024, including a surface protective layer covering the surface of the lip brick, a cover plate disposed on the outside of the surface protective layer, and a base disposed on the outside of the lip brick. The base and the cover plate are disposed on the periphery of the lip brick, and the base and the cover plate enclose a storage through hole. Side plates are detachably connected to both ends of the storage through hole. This device also cannot solve the above-mentioned technical problem.

[0004] Therefore, in order to improve or solve at least one of the above problems, it is necessary to provide a heat protection device for the lip brick of the rolled glass overflow outlet that can protect the contact joint between the tail brick and the lip brick and the curved surface of the lip brick from cracking. Utility Model Content

[0005] The purpose of this utility model is to provide a heat protection device for the lip brick of the overflow mouth of rolled glass that can protect the contact seam between the tail brick and the lip brick and the curved surface of the lip brick from cracking.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a heat protection device for the overflow lip brick of rolled glass, including a tail brick and a lip brick; a first cooling pipe structure is provided between the tail brick and the lip brick; the lip brick includes a lip brick arc surface; and a second cooling pipe structure is provided on the lip brick arc surface.

[0007] A contact joint is provided between the tail brick and the lip brick; the first cooling pipe structure includes a contact joint cooling main pipe; the contact joint cooling main pipe is located in the contact joint, and the contact joint cooling main pipe is connected to a contact joint cooling branch pipe.

[0008] The end of the cooling branch pipe of the contact seam is provided with an air outlet; the air outlet is located at the top of the contact seam.

[0009] The lip brick arc surface is located on the side of the lip brick away from the tail brick; the second cooling pipe structure includes a lip brick arc surface cooling main pipe; the lip brick arc surface cooling main pipe is connected to a lip brick arc surface cooling branch pipe; the lip brick arc surface cooling branch pipe is located on one side of the lip brick arc surface.

[0010] Ventilation holes are provided on the side wall of the lip brick arc surface cooling branch pipe; the ventilation holes are evenly distributed on the lip brick arc surface cooling branch pipe.

[0011] Both the contact seam cooling main pipe and the lip brick arc surface cooling main pipe are connected to cooling air valves and pressure gauges.

[0012] Both the contact seam cooling main pipe and the lip brick arc surface cooling main pipe are connected to a main pipe; a cooling gas main valve and a pressure regulating valve are respectively connected to the main pipe; the pressure regulating valve is located on the side of the cooling gas main valve away from the contact seam cooling main pipe.

[0013] The cooling branch pipe on the curved surface of the lip brick is made of copper.

[0014] The beneficial effects of this application are as follows:

[0015] This application includes a first cooling pipe structure and a second cooling pipe structure. The first cooling pipe structure blows cooling air from the top of the contact joint between the tail brick and the lip brick, effectively cooling the lip brick near the contact joint. The second cooling pipe structure effectively cools the curved surface of the lip brick, thereby reducing the temperature difference before and after machine change, preventing the lip brick from cracking, ensuring the structural integrity of the lip brick, significantly reducing the number and frequency of open bubbles under the glass plate, significantly reducing the frequency and time of color difference marks, effectively improving the service life of the lip brick, improving employee work efficiency, reducing employee work risks, improving the stability of the production process, and enhancing the safety of kiln production. Attached Figure Description

[0016] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0017] Figure 1 This is a schematic diagram of the thermal protection device for the overflow lip brick of this rolled glass.

[0018] Figure 2 This is a schematic diagram of the cooling branch pipe on the arc surface of the lip brick of the heat protection device for the overflow lip brick of this rolled glass.

[0019] Figure 3 This is a schematic diagram of the lip brick structure of the heat protection device for the overflow lip brick of this rolled glass.

[0020] The markings in the above figures are all:

[0021] The diagram is marked as follows:

[0022] 1. Tail bricks,

[0023] 2. Lip brick,

[0024] 3. Curved surface of the lip brick,

[0025] 4. Contact seam,

[0026] 5. Main cooling pipe for contact joints; 501. Branch cooling pipe for contact joints.

[0027] 6. Main cooling pipe for curved surface of lip brick, 601; Branch cooling pipe for curved surface of lip brick, 602; Vent hole.

[0028] 7. Cooling valve, 701. Pressure gauge,

[0029] 8. Main pipe, 801. Cooling gas main valve, 802. Pressure regulating valve. Detailed Implementation

[0030] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this utility model, and to facilitate its implementation.

[0031] Figure 1 The heat protection device for the overflow lip brick of rolled glass shown includes a tail brick 1 and a lip brick 2; a first cooling pipe structure is provided between the tail brick 1 and the lip brick 2; the lip brick 2 includes a lip brick arc surface 3; a second cooling pipe structure is provided on the lip brick arc surface 3.

[0032] This application includes a first cooling pipe structure and a second cooling pipe structure. The first cooling pipe structure blows cooling air from the top of the contact joint between the tail brick 1 and the lip brick 2, which can effectively cool the lip brick 2 near the contact joint. The second cooling pipe structure can effectively cool the lip brick arc surface 3 of the lip brick 2, thereby reducing the temperature difference before and after machine change, preventing the lip brick 2 from cracking, ensuring the structural integrity of the lip brick 2, significantly reducing the number and frequency of open bubbles under the glass plate, significantly reducing the frequency and time of color difference marks, effectively improving the service life of the lip brick 2, improving employee work efficiency, reducing employee work risks, improving the stability of the production process, and enhancing the safety of kiln production.

[0033] A contact joint 4 is provided between the tail brick 1 and the lip brick 2; the first cooling pipe structure includes a contact joint cooling main pipe 5; the contact joint cooling main pipe 5 is located in the contact joint 4, and the contact joint cooling main pipe 5 is connected to a contact joint cooling branch pipe 501.

[0034] The main cooling pipe 5 for the contact joint is located at the bottom of the contact joint 4; multiple cooling branch pipes 501 are connected to the main cooling pipe 5 for the contact joint; the number of cooling branch pipes 501 in the middle of the main cooling pipe 5 for the contact joint is greater than the number on both sides of the main cooling pipe 5 for the contact joint.

[0035] An air outlet is provided at the end of the contact seam cooling branch pipe 501; the air outlet is located at the top of the contact seam 4.

[0036] The top of the contact seam cooling branch pipe 501 is provided with an air outlet; cooling air is blown out from the air outlet; the air outlet is close to the top of the contact seam 4, which can effectively enhance the cooling effect of the lip brick 2.

[0037] The lip brick arc surface 3 is located on the side of the lip brick 2 away from the tail brick 1; the second cooling pipe structure includes the lip brick arc surface cooling main pipe 6; the lip brick arc surface cooling main pipe 6 is connected to the lip brick arc surface cooling branch pipe 601; the lip brick arc surface cooling branch pipe 601 is located on one side of the lip brick arc surface 3.

[0038] The main cooling pipe 6 of the lip brick arc surface is located at the bottom of the lip brick arc surface 3; multiple lip brick arc surface cooling branch pipes 601 are connected to the main cooling pipe 6; the number of lip brick arc surface cooling branch pipes 601 in the middle of the main cooling pipe 6 is greater than that on both sides of the main cooling pipe 6; the lip brick arc surface cooling branch pipes 601 have an arc-shaped structure; the lip brick arc surface cooling branch pipes 601 have the same arc height as the lip brick arc surface 3; the lip brick arc surface cooling branch pipes 601 are close to the lip brick arc surface 3, and the vent 602 is set close to the lip brick arc surface 3.

[0039] Ventilation holes 602 are provided on the side wall of the lip brick arc surface cooling branch pipe 601; the ventilation holes 602 are evenly distributed on the lip brick arc surface cooling branch pipe 601.

[0040] Multiple vent holes 602 are evenly distributed on the side wall of the lip brick arc surface cooling branch pipe 601; cooling air is blown out from the vent holes 602, thereby enabling sufficient cooling of the lip brick arc surface 3.

[0041] Cooling valves 7 and pressure gauges 701 are connected to both the contact seam cooling main pipe 5 and the lip brick arc surface cooling main pipe 6.

[0042] The cooling gas valve 7 can precisely control the flow and on / off of cooling gas, and can flexibly adjust the supply of cooling gas in the contact seam cooling main pipe 5 and the lip brick arc surface cooling main pipe 6 according to actual working conditions, ensuring that the cooling effect is always at its best. It can also adjust the gas pressure in the contact seam cooling main pipe 5 and the lip brick arc surface cooling main pipe 6. The pressure gauge 701 displays the gas pressure of the contact seam cooling main pipe 5 and the lip brick arc surface cooling main pipe 6 in real time, providing operators with intuitive pressure data. Once the pressure is abnormal, such as excessively high pressure, it may indicate pipe blockage or excessive gas supply, while excessively low pressure may indicate gas leakage or insufficient supply. Operators can take corresponding measures in time according to the reading of the pressure gauge 701 to ensure the stable and efficient operation of the cooling system and avoid the cooling effect being affected by abnormal pressure, which could adversely affect the normal operation and service life of the equipment.

[0043] Both the contact seam cooling main pipe 5 and the lip brick arc surface cooling main pipe 6 are connected to a main pipe 8; a cooling gas main valve 801 and a pressure regulating valve 802 are respectively connected to the main pipe 8; the pressure regulating valve 802 is located on the side of the cooling gas main valve 801 away from the contact seam cooling main pipe 5.

[0044] The cooling gas main valve 801 can cut off or open the supply of cooling gas as a whole, making it convenient for operators to start and stop the entire cooling system. In the event of equipment maintenance, repair or emergency, the cooling gas main valve 801 can be quickly closed to stop the delivery of cooling gas and ensure operational safety. The pressure regulating valve 802 is responsible for precisely regulating the pressure of the cooling gas in the main pipe 8. By regulating the pressure, the pressure of the cooling gas delivered to the contact seam cooling main pipe 5 and the lip brick arc surface cooling main pipe 6 is maintained within a suitable range to ensure the stability and consistency of the cooling effect. The pressure regulating valve 802 is a self-operated pressure regulating valve. The pressure regulating valve 802 is installed before the cooling gas main valve 801 to facilitate stable adjustment of the pressure in the main pipe 8. The pressure in the main pipe 8 is required to be no less than 0.4 MPa.

[0045] The lip brick arc surface cooling branch pipe 601 is made of copper.

[0046] Copper has extremely high thermal conductivity, which can quickly transfer the heat generated by the curved surface 3 of the lip brick to the outside, achieving efficient cooling and ensuring that the lip brick 2 works stably in high-temperature environments, thus extending its service life. Copper pipes have strong corrosion resistance and are not easily corroded or damaged in long-term contact with cooling media and in potentially corrosive environments, reducing the risk of cooling media leakage caused by pipe corrosion, improving the reliability and stability of the cooling system, reducing maintenance costs and frequency, and ensuring the continuity of the production process.

[0047] The specific workflow of this utility model is as follows:

[0048] The main cooling pipe 5 for the contact seam is placed at the bottom of the contact seam 4, and the cooling branch pipe 501 for the contact seam 4 outputs cooling air at the top of the contact seam 4; the main cooling pipe 6 for the lip brick arc surface is placed at a suitable position at the bottom of the lip brick arc surface 3, the cooling branch pipe 601 for the lip brick arc surface 3 is close to the lip brick arc surface 3, and the vent 602 is set close to the lip brick arc surface 3; the pressure regulating valve 802 is installed before the cooling air main valve 801; the cooling air valve 7 should be adjusted in time according to the pressure gauge 701.

[0049] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A heat protection device for the overflow lip brick of rolled glass, characterized in that: It includes a tail brick (1) and a lip brick (2); a first cooling pipe structure is provided between the tail brick (1) and the lip brick (2); the lip brick (2) includes a lip brick arc surface (3); a second cooling pipe structure is provided on the lip brick arc surface (3).

2. A heat protection device for the overflow lip brick of rolled glass according to claim 1, characterized in that: A contact seam (4) is provided between the tail brick (1) and the lip brick (2); the first cooling pipe structure includes a contact seam cooling main pipe (5); the contact seam cooling main pipe (5) is located in the contact seam (4), and the contact seam cooling main pipe (5) is connected to a contact seam cooling branch pipe (501).

3. A heat protection device for the overflow lip brick of rolled glass according to claim 2, characterized in that: The end of the cooling branch pipe (501) of the contact seam is provided with an air outlet; the air outlet is located at the top of the contact seam (4).

4. A heat protection device for the overflow lip brick of rolled glass according to any one of claims 2-3, characterized in that: The lip brick arc surface (3) is located on the side of the lip brick (2) away from the tail brick (1); the second cooling pipe structure includes a lip brick arc surface cooling main pipe (6); the lip brick arc surface cooling main pipe (6) is connected to a lip brick arc surface cooling branch pipe (601); the lip brick arc surface cooling branch pipe (601) is located on one side of the lip brick arc surface (3).

5. A heat protection device for the overflow lip brick of rolled glass according to claim 4, characterized in that: The side wall of the lip brick arc surface cooling branch pipe (601) is provided with vent holes (602); the vent holes (602) are evenly distributed on the lip brick arc surface cooling branch pipe (601).

6. A heat protection device for the overflow lip brick of rolled glass according to claim 5, characterized in that: Cooling valves (7) and pressure gauges (701) are connected to both the contact seam cooling main pipe (5) and the lip brick arc surface cooling main pipe (6).

7. A heat protection device for the overflow lip brick of rolled glass according to any one of claims 5-6, characterized in that: Both the contact seam cooling main pipe (5) and the lip brick arc surface cooling main pipe (6) are connected to a main pipe (8); a cooling gas main valve (801) and a pressure regulating valve (802) are respectively connected to the main pipe (8); the pressure regulating valve (802) is located on the side of the cooling gas main valve (801) away from the contact seam cooling main pipe (5).

8. A heat protection device for the overflow lip brick of rolled glass according to claim 7, characterized in that: The lip brick arc surface cooling branch pipe (601) is a copper pipe.

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