Energy-saving and heat-insulating glass kiln

Abstract

The utility model relates to the technical field of glass kilns, and provides an energy-saving and heat-insulating glass kiln which comprises a kiln body, a flue communicated with the kiln body, a heat-insulating layer arranged outside the kiln body, an isolating layer arranged outside the heat-insulating layer, a bent channel arranged in the isolating layer and used for preheating and recycling flue gas, one end of the bent channel communicated with the flue, and the other end of the bent channel communicated with the flue. The bending channel is integrated in the isolation layer, high-temperature flue gas in the flue is introduced into the isolation layer through the bending channel, heat preservation is conducted on the kiln body through flue gas waste heat, the structure is simple and efficient, the energy utilization efficiency is improved, heat loss is reduced, and the production cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of glass furnace technology, and more specifically, to an energy-saving and heat-insulating glass furnace. Background Technology

[0002] Glass furnaces are key pieces of equipment in the glass manufacturing process used for high-temperature melting of raw materials. During the high-temperature melting process, the internal temperature of a glass furnace typically reaches over 1500℃, and a significant temperature difference forms between the furnace body and the external environment, resulting in a large amount of heat loss through the furnace body. To reduce heat loss, traditional glass furnaces usually have an insulation layer laid on the outside of the refractory brick layer to reduce the heat conduction efficiency of the furnace surface, thereby improving energy utilization. Currently, most glass furnace designs focus primarily on optimizing refractory materials and insulation layers, while paying less attention to the recovery and utilization of waste heat from high-temperature flue gas in the flue. This flue gas is usually discharged directly through the flue, not being fully utilized, resulting in energy waste. Utility Model Content

[0003] The purpose of this invention is to provide an energy-saving and heat-insulating glass furnace, which solves the heat insulation problem of existing glass furnaces.

[0004] This utility model is achieved through the following technical solution: an energy-saving and heat-insulating glass kiln, including a kiln body, a flue connected to the kiln body, a heat-insulating layer outside the kiln body, an isolation layer outside the heat-insulating layer, and a bent channel for preheating and recovering flue gas inside the isolation layer. One end of the bent channel is connected to the flue, and the other end of the bent channel is connected to an exhaust pipe.

[0005] Furthermore, a frame is installed outside the isolation layer, and the frame is in close contact with the outer wall of the isolation layer.

[0006] Furthermore, the isolation layers are segmented along the direction of glass melt flow, and the uprights of the frame are arranged at the joints of adjacent isolation layers.

[0007] Furthermore, adjacent isolation layers are interlocked.

[0008] Furthermore, the curved passageway is equipped with an inspection port.

[0009] Furthermore, a filter screen is installed near the maintenance port limit within the curved passage.

[0010] Furthermore, the bends are U-shaped or V-shaped.

[0011] Furthermore, the isolation layer is made of zirconium corundum material.

[0012] This utility model has at least the following advantages and beneficial effects: by integrating the bent channel into the isolation layer, the high-temperature flue gas in the flue is introduced into the isolation layer through the bent channel, and the waste heat of the flue gas is used to keep the kiln body warm. The structure is simple and efficient, which improves energy utilization efficiency, reduces heat loss, and saves production costs. Attached Figure Description

[0013] Figure 1 The front view of an energy-saving and heat-insulating glass furnace provided by this utility model.

[0014] Figure 2 A partial side view of an energy-saving and heat-insulating glass kiln provided by this utility model.

[0015] Figure 3 A partial cross-sectional schematic diagram of an energy-saving and heat-insulating glass furnace provided by this utility model.

[0016] Attached diagram labels: 1-Kiln body, 10-Flue, 2-Insulation layer, 3-Isolation layer, 30-Bent channel, 31-Exhaust pipe, 32-Inspection port, 33-Filter screen, 4-Frame. Detailed Implementation

[0017] The specific implementation method is described below with reference to the accompanying drawings.

[0018] Example

[0019] like Figures 1 to 3 As shown in this embodiment, an energy-saving and heat-insulating glass kiln is disclosed, including a kiln body 1, a flue 10 connected to the kiln body 1, an insulation layer 2 outside the kiln body 1, and an isolation layer 3 outside the insulation layer 2. A bent channel 30 for flue gas preheating and recovery is provided within the isolation layer 3. One end of the bent channel 30 is connected to the flue 10, and the other end is connected to an exhaust pipe 31. Specifically, the insulation layer 2 can be made of asbestos or ceramic fiber. By integrating the bent channel 30 into the isolation layer 3, the high-temperature flue gas in the flue 10 is introduced into the isolation layer 3 using the bent channel 30, and the waste heat of the flue gas is used to insulate the kiln body 1. The structure is simple and efficient, improving energy utilization efficiency, reducing heat loss, and saving production costs.

[0020] Furthermore, in specific implementation, a frame 4 is provided outside the isolation layer 3 provided in this embodiment of the utility model, and the frame 4 is tightly abutted against the outer wall of the isolation layer 3. Specifically, the frame 4 is composed of uprights, crossbeams, and longitudinal beams. The uprights are arranged vertically on both sides of the kiln body 1, the crossbeams connect two uprights in the width direction of the kiln body 1 and extend horizontally above the arch, and the longitudinal beams connect adjacent uprights and adjacent crossbeams in the longitudinal direction of the kiln body 1. The frame 4 provides mechanical support for the isolation layer 3, preventing the isolation layer 3 from deforming due to thermal expansion or external forces. This reduces damage to the isolation layer 3 caused by vibration or thermal stress and improves overall durability. At the same time, the frame 4 can serve as an installation reference for the isolation layer 3, simplifying the construction and maintenance process.

[0021] Preferably, such as Figure 2 , Figure 3 As shown, the isolation layer 3 is segmented along the direction of molten glass flow, and the uprights of the frame 4 are arranged at the joints between adjacent isolation layers 3. Specifically, the modular design of the isolation layer 3 facilitates its manufacturing, transportation, and installation, reducing construction difficulty. Simultaneously, it allows for zoned insulation of the glass furnace, improving the flexibility and adaptability of the device. Furthermore, the uprights positioned at the joints enhance the connection strength between adjacent isolation layers 3, better accommodating the thermal expansion of the furnace body 1 at high temperatures and reducing stress concentration. Additionally, the snap-fit ​​connection between adjacent isolation layers 3 simplifies the splicing process and improves construction efficiency.

[0022] Furthermore, in a specific implementation, the aforementioned bent channel 30 provided in this embodiment of the present invention is provided with an inspection port 32. Specifically, the inspection port 32 can be located at a location in the bent channel 30 that is prone to clogging, such as the bend or the outlet end, to facilitate the cleaning and maintenance of the bent channel 30 and prevent the accumulation of smoke and dust from affecting heat exchange efficiency. Preferably, a filter screen 33 is provided inside the bent channel 30 near the inspection port 32 to intercept particulate matter in the flue gas, reduce the deposition of smoke and dust in the bent channel 30, prevent the bent channel 30 from becoming clogged, ensure smooth flue gas flow, and maintain efficient heat exchange performance.

[0023] Furthermore, in specific implementations, the aforementioned bent channel 30 provided in this embodiment of the present invention is U-shaped or V-shaped. Specifically, the bent channel 30 can be multi-folded to prolong the contact time between the flue gas and the isolation layer 3 and improve the waste heat recovery efficiency.

[0024] Furthermore, in specific implementation, the isolation layer 3 provided in this utility model embodiment is made of zirconium corundum material, which has extremely high fire resistance and thermal shock resistance, and strong resistance to chemical corrosion of flue gas.

Claims

1. An energy-saving and heat-insulating glass kiln, comprising a kiln body (1), wherein the kiln body (1) is connected to a flue (10), and an insulation layer (2) is provided on the outside of the kiln body (1), characterized in that, An isolation layer (3) is provided outside the insulation layer (2), and a bent channel (30) for flue gas preheating and recovery is provided inside the isolation layer (3). One end of the bent channel (30) is connected to the flue (10), and the other end of the bent channel (30) is connected to the exhaust pipe (31).

2. The energy-saving and heat-insulating glass furnace according to claim 1, characterized in that, The isolation layer (3) is supported by a frame (4), which is in close contact with the outer wall of the isolation layer (3).

3. The energy-saving and heat-insulating glass furnace according to claim 2, characterized in that, The isolation layer (3) is segmented along the direction of glass melt flow, and the uprights of the frame (4) are arranged at the joints of adjacent isolation layers (3).

4. The energy-saving and heat-insulating glass furnace according to claim 3, characterized in that, The adjacent isolation layers (3) are snap-fitted together.

5. The energy-saving and heat-insulating glass furnace according to claim 1, characterized in that, The curved channel (30) is provided with an inspection port (32).

6. The energy-saving and heat-insulating glass furnace according to claim 5, characterized in that, A filter screen (33) is provided in the bent channel (30) near the maintenance port (32) for limiting the movement.

7. The energy-saving and heat-insulating glass furnace according to claim 1, characterized in that, The bent channel (30) is U-shaped or V-shaped.

8. The energy-saving and heat-insulating glass furnace according to claim 1, characterized in that, The isolation layer (3) is made of zirconium corundum material.

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