Glass melting furnace ridge capable of cooling
By introducing inclined surfaces, cooling chambers, and high-temperature resistant reinforcements into the glass melting furnace sill, combined with water cooling and air cooling, the problem of easy damage to the sill was solved, the structural enhancement and cooling effect of the sill were improved, the service life was extended, and the production cost was reduced.
Patent Information
- Application Number
- CN202422650983.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-10-31
AI Technical Summary
The kiln sill has a short service life in glass melting furnaces and is susceptible to erosion and impact from high-temperature molten glass, leading to frequent shutdowns for maintenance, which affects production efficiency and costs.
A glass melting furnace sill is designed, comprising a sloping section, a cooling chamber, cooling water pipes, and high-temperature resistant stainless steel reinforcements. The service life of the sill is extended by using the sloping section for airflow guidance, the high-temperature resistant reinforcements to enhance the structure, and water cooling and air cooling measures.
It improved the structural strength and cooling effect of the kiln sill, extended the service life of the kiln sill, reduced the frequency of shutdown for maintenance, and lowered production costs.
Smart Images

Figure CN223646450U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of glass furnace production technology, specifically to a glass furnace sill that can be cooled and de-temperatured. Background Technology
[0002] The furnace sill is a crucial component in a glass melting furnace. From a liquid dynamics perspective, the presence of the sill alters the flow path of the molten glass within the furnace, lengthening the path and increasing the time it takes for the molten glass to exit the furnace, effectively extending the clarification time. Therefore, the sill plays a positive role in bubble clarification. Furthermore, at the height of the sill, a portion of the stagnant layer adhering to the bottom of the furnace thickens, allowing higher-quality molten glass from the upper and middle sections to flow towards the production section, thus also contributing to glass purification.
[0003] However, the operating conditions of the furnace sill are harsh, subject to erosion and impact from the high-temperature flowing molten glass. Relatively speaking, the service life of the furnace sill is shorter than that of the furnace. Under normal circumstances, the furnace's service life is about 5 years. If the furnace sill's service life cannot match that of the furnace, severe damage to the furnace sill requires a shutdown for repairs. A shutdown of at least 2-3 months will seriously affect production and greatly increase the cost of molten glass production. Therefore, this application improves the furnace sill by changing its structure, strengthening its overall structural strength, and enhancing its cooling effect, thereby increasing its service life to match that of the furnace. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art, the present invention provides a glass furnace sill that can be cooled down.
[0005] The technical solution adopted by this utility model is: a glass furnace sill capable of cooling and temperature reduction, comprising a sill body, an inclined surface, a cooling chamber, cooling water pipes, and high-temperature resistant stainless steel reinforcements. The sill body is disposed inside the glass furnace. The two sides of the sill body that are in contact with the molten glass are provided with inclined surfaces. The cross-section of the inclined surface is a right-angled triangle that is wider at the bottom and narrower at the top. The inclined surface and the sill body form a trapezoidal sill. The sill body is provided with a cooling chamber inside. Multiple sets of cooling water pipes are disposed in the cooling chamber. The two side walls of the cooling chamber are fixedly connected to the high-temperature resistant stainless steel reinforcements.
[0006] Furthermore, the cooling chamber is configured to be trapezoidal to match the trapezoidal kiln sill;
[0007] Furthermore, after exiting the cooling chamber, the cooling water pipe is sequentially connected to a heat exchanger, a cooling water tank, and a water pump;
[0008] Furthermore, the high-temperature resistant stainless steel reinforcement includes a main fixing steel plate and connecting side plates. The main fixing steel plate is disposed in the cooling cavity. The main fixing steel plate is fixedly connected to both side walls of the cooling cavity. Multiple connecting side plates are horizontally arranged on the side of the main fixing steel plate connected to the side wall of the cooling cavity. The upper and lower surfaces of the connecting side plates are fixedly connected to the refractory bricks that have cooled the side wall.
[0009] Furthermore, the connecting side plate is configured with denser material at the bottom and sparser material at the top;
[0010] Furthermore, the inner sides of the two main body fixing steel plates are fixedly connected by connecting rods;
[0011] Furthermore, the cooling water in the cooling chamber has an air inlet on one side and an exhaust outlet on the opposite side. The air inlet is connected to a fan via a pipe and is also connected to the outside via a pipe.
[0012] Furthermore, a condenser tower is connected above the cooling water tank via a pipe, and the exhaust port is connected to the condenser tower via a pipe.
[0013] Furthermore, multiple nozzles are installed on the cooling water pipes near the main body fixing steel plate inside the cooling chamber, and the cooling water pipes with nozzles are supplied with water intermittently.
[0014] Beneficial effects of this utility model
[0015] 1. By setting an inclined surface and fixing it to the kiln sill body, this utility model not only strengthens the structure of the bottom two sides of the kiln sill, which are more severely impacted by molten glass, but also has a certain guiding effect due to the inclined surface, thereby reducing the impact of molten glass on the bottom two sides of the kiln sill and extending the service life of the kiln sill.
[0016] 2. This utility model strengthens the overall structural strength of the kiln sill by setting high-temperature resistant stainless steel reinforcements, which are fixedly connected to the two side walls of the cooling chamber, and by connecting side plates which are fixedly connected to the refractory bricks on both sides of the cooling chamber. This prevents the kiln sill from collapsing completely after being damaged by erosion and impact, thus extending the service life of the kiln sill.
[0017] 3. This utility model not only sets up water cooling and air cooling in the cooling chamber, but also sets up a cooling water pipe that can spray water intermittently. Water is sprayed onto the high-temperature resistant stainless steel plates on both sides of the cooling chamber. The fan accelerates the air circulation on the stainless steel surface, causing a large amount of water on the stainless steel plate surface to evaporate rapidly. The evaporation absorbs heat and achieves the cooling effect. Moreover, metal has good thermal conductivity. The main fixing steel plate and connecting side plates can transfer heat inside the kiln sill bricks, which improves the cooling effect and extends the service life of the kiln sill. Attached Figure Description
[0018] Figure 1This is a schematic diagram of the structure of this utility model.
[0019] Figure 2 This is a schematic diagram of the cross-section of the kiln sill of this utility model.
[0020] Figure 3 This is a schematic diagram of the high-temperature resistant stainless steel reinforcement structure of this utility model.
[0021] In the diagram: 1. Kiln sill body, 2. Sloping section, 3. Cooling chamber, 4. Cooling water pipe, 5. High-temperature resistant stainless steel reinforcement, 501. Main body fixing steel plate, 502. Connecting side plate, 503. Connecting rod, 6. Heat exchanger, 7. Cooling water tank, 8. Water pump, 9. Fan, 10. Condensation tower. Detailed Implementation
[0022] To better understand the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, further illustrates this utility model.
[0023] like Figures 1-3 As shown, a glass furnace sill capable of cooling includes a sill body, inclined surfaces, a cooling chamber, cooling water pipes, and high-temperature resistant stainless steel reinforcements. The sill body is disposed inside the glass furnace and has the shape of a conventional sill, i.e., a cuboid. Both sides of the sill body that come into contact with the molten glass are provided with inclined surfaces. The cross-section of the inclined surfaces is a right-angled triangle that is wider at the bottom and narrower at the top. The inclined surfaces and the sill body form a trapezoidal sill. The sill body has a cooling chamber inside, and multiple sets of cooling water pipes are disposed inside the cooling chamber. The two side walls of the cooling chamber are fixedly connected to the high-temperature resistant stainless steel reinforcements.
[0024] Preferably, in this embodiment, the cooling chamber is set to a trapezoidal shape that matches the trapezoidal kiln sill. The cooling chamber is also set to be wider at the bottom and narrower at the top, with a large space at the bottom. The areas of the kiln sill that are more affected by the impact of the molten glass are on the two sides of the bottom of the kiln sill. The large cooling space at the bottom of the cooling chamber results in a better cooling effect than a narrow space. The better cooling effect at this point will slow down the flow of molten glass outside the kiln sill, thus reducing the impact of the molten glass on the kiln sill at this point.
[0025] Specifically, in this embodiment, after the cooling water pipe exits the cooling chamber, it is connected in sequence to a heat exchanger, a cooling water tank, and a water pump to ensure the cooling and circulation of the cooling water.
[0026] Specifically, in this embodiment, the high-temperature resistant stainless steel reinforcement includes a main fixing steel plate and connecting side plates. The main fixing steel plate is set in the cooling cavity, and the main fixing steel plate is fixedly connected to both side walls of the cooling cavity. Multiple connecting side plates are horizontally arranged on the side of the main fixing steel plate connected to the side wall of the cooling cavity. The upper and lower surfaces of the connecting side plates are fixedly connected to the refractory bricks of the cooled side walls. The main fixing steel plate is fixedly connected to both side walls of the cooling cavity, and the connecting side plates are fixedly connected to the refractory bricks on both sides of the cooling cavity, which strengthens the overall structural strength of the kiln sill. In specific implementation, in order to strengthen the overall strength of the kiln sill, fused alumina bricks are generally selected when constructing the kiln sill. When laying fused alumina bricks, the surface of the fused alumina bricks can be further polished to make the connection tighter, and the surface connected to the connecting side plates and the main fixing steel plate is also further polished.
[0027] Preferably, in this embodiment, the connecting side plates are configured with denser plates at the bottom and sparser plates at the top, with denser connecting side plates at the bottom, which increases the structural strength of the lower part of the kiln sill and more effectively resists the impact of molten glass.
[0028] Preferably, in this embodiment, the inner sides of the two main fixing steel plates are fixedly connected by a connecting rod 503, which enhances the stability of the main fixing steel plates.
[0029] Preferably, in this embodiment, the cooling water inlet of the cooling chamber is provided on one side, and the exhaust port is provided on the opposite side. The air inlet is connected to a fan through a pipe and is connected to the outside through a pipe. Multiple nozzles are provided on the cooling water pipe near the main fixed steel plate inside the cooling chamber. The cooling water pipe with nozzles is intermittently supplied with water and sprays water intermittently. The water is sprayed onto the high-temperature resistant stainless steel plates on both sides of the cooling chamber. The fan accelerates the air circulation on the stainless steel surface, causing a large amount of water on the surface of the stainless steel plate to evaporate rapidly. The evaporation absorbs heat and achieves the cooling effect. Moreover, metal has good thermal conductivity, and the main fixed steel plate and connecting side plate can transfer heat inside the kiln brick body, which improves the cooling effect.
[0030] Preferably, in this embodiment, a condenser tower is connected above the cooling water tank via a pipe, and the exhaust port is connected to the condenser tower via a pipe. A packed condenser tower can be selected, and the water vapor coming out of the cooling chamber of the condenser tower is recycled and reused.
[0031] Working Principle: During use, the inclined section is fixedly connected to the kiln sill body. The bottom two sides, which are severely impacted by molten glass, are not only structurally reinforced but also have an inclined surface that provides some airflow guidance, reducing the impact of molten glass on the bottom two sides of the kiln sill. High-temperature resistant stainless steel reinforcements are fixedly connected to the side walls of the cooling chamber, and connecting side plates are fixedly connected to the refractory bricks on both sides of the cooling chamber, strengthening the overall structural strength of the kiln sill. When the fan and water pump are started, hot air is discharged and cold air is introduced into the cooling chamber. Low-temperature water continuously enters the cooling chamber through the cooling water pipes for heat exchange, achieving the cooling effect. At the same time, the cooling water pipes equipped with nozzles are intermittently sprayed by control. The water is sprayed onto the high-temperature resistant stainless steel plates on both sides of the cooling chamber. The fan accelerates the air circulation on the stainless steel surface, causing a large amount of water on the surface of the stainless steel plates to evaporate rapidly. Evaporation absorbs heat, achieving the cooling effect. Moreover, metal has good thermal conductivity, and the main fixing steel plate and connecting side plates can transfer heat inside the kiln sill bricks, improving the cooling effect. If necessary, the cooling water pipes equipped with nozzles can also spray water for a long time.
[0032] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.
Claims
1. A glass furnace sill capable of cooling and temperature reduction, characterized in that, The system includes a kiln sill body, inclined surfaces, a cooling chamber, cooling water pipes, and high-temperature resistant stainless steel reinforcements. The kiln sill body is located inside the glass melting furnace. Both sides of the kiln sill body that come into contact with the molten glass are provided with inclined surfaces. The cross-section of the inclined surfaces is a right-angled triangle that is wider at the bottom and narrower at the top. The inclined surfaces and the kiln sill body form a trapezoidal kiln sill. The kiln sill body has a cooling chamber inside, and multiple sets of cooling water pipes are installed in the cooling chamber. The two side walls of the cooling chamber are fixedly connected to the high-temperature resistant stainless steel reinforcements.
2. The glass furnace sill for cooling and temperature reduction according to claim 1, characterized in that, The cooling chamber is configured in a trapezoidal shape to match the trapezoidal kiln sill.
3. A glass furnace sill capable of cooling and reducing temperature according to claim 1, characterized in that, After exiting the cooling chamber, the cooling water pipe is connected in sequence to a heat exchanger, a cooling water tank, and a water pump.
4. A glass furnace sill capable of cooling and reducing temperature according to claim 1, characterized in that, The high-temperature resistant stainless steel reinforcement includes a main fixing steel plate and connecting side plates. The main fixing steel plate is disposed in the cooling cavity. The main fixing steel plate is fixedly connected to both side walls of the cooling cavity. Multiple connecting side plates are horizontally arranged on the side of the main fixing steel plate that connects to the side wall of the cooling cavity. The upper and lower surfaces of the connecting side plates are fixedly connected to the refractory bricks of the cooled side wall.
5. A glass furnace sill capable of cooling and temperature reduction according to claim 4, characterized in that, The connecting side plate is designed with a denser bottom and a sparser top.
6. A glass furnace sill capable of cooling and temperature reduction according to claim 4, characterized in that, The two main body fixing steel plates are fixedly connected on their inner sides by connecting rods.
7. A glass furnace sill capable of cooling and temperature reduction according to claim 3, characterized in that, The cooling chamber has an air inlet on one side where cooling water enters, and an exhaust outlet on the opposite side of the air inlet. The air inlet is connected to a fan via a pipe and is also connected to the outside via a pipe.
8. A glass furnace sill capable of cooling and temperature reduction according to claim 7, characterized in that, A condenser tower is connected to the top of the cooling water tank via a pipe, and the exhaust port is connected to the condenser tower via a pipe.
9. A glass furnace sill capable of cooling and temperature reduction according to claim 4, characterized in that, Multiple nozzles are installed on the cooling water pipes near the main fixed steel plate inside the cooling chamber, and the cooling water pipes with nozzles are supplied with water intermittently.