Combustion-supporting air supply system and glass kiln

Abstract

The utility model belongs to the technical field of glass firing, and discloses a combustion-supporting air supply system and a glass kiln. The combustion-supporting air supply system comprises a combustion-supporting fan and an air suction pipeline, the air inlet end of the air suction pipeline is arranged above the arch top of a melting chamber of the glass kiln, and part of the air suction pipeline penetrates through a heat storage chamber of the glass kiln, so that the temperature of combustion-supporting air can be remarkably increased by the combustion-supporting air supply system; therefore, the waste heat of the melting chamber and the heat storage chamber of the glass kiln is effectively utilized, the energy utilization efficiency is improved, and the energy consumption is reduced. After the temperature of the combustion-supporting air is increased, the combustion efficiency of the fuel can be improved, and the fuel can be combusted more sufficiently, so that the residue of the uncombusted fuel and the emission of pollutants are reduced, the risk of flameout can be reduced, the continuous and stable operation of equipment can be ensured, and the stability and quality of the glass manufacturing process are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of glass firing, in particular to a combustion-supporting air supply system and a glass kiln. Background Art

[0002] Combustion-supporting air plays an important role in the glassmaking process. It significantly speeds up the melting of glass raw materials and reduces energy consumption by improving the heating effect and combustion efficiency. At the same time, by adjusting the flow and temperature of the combustion-supporting air, glass manufacturers can accurately control the temperature in the kiln to ensure the stability and quality of the glassmaking process. In addition, the use of combustion-supporting air can also help shorten the production cycle, improve production efficiency, and reduce environmental pollution, achieving a greener and more sustainable production method.

[0003] When the temperature of the combustion-supporting air is low, it will bring a series of negative effects. Low-temperature combustion-supporting air will lead to incomplete combustion of the fuel, reduce combustion efficiency and may produce pollutants; at the same time, too low a temperature may also cause the risk of flameout, affecting the continuous and stable operation of the equipment. In addition, low-temperature combustion-supporting air is also prone to carbon deposition problems, which not only reduces thermal efficiency but also poses a safety hazard. The combined effect of these factors will lead to a decrease in the overall efficiency of the equipment and a decrease in the temperature in the melting chamber, which will in turn affect the glass melting speed and production efficiency.

[0004] Based on the above, there is an urgent need for a combustion-supporting air supply system and a glass kiln to solve the above-mentioned technical problems. Utility Model Content

[0005] The utility model aims to provide a combustion-supporting air supply system and a glass kiln, which can ensure that the temperature of the combustion-supporting air meets production needs.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Combustion air supply system, including:

[0008] A combustion-supporting fan, the combustion-supporting fan being capable of driving airflow;

[0009] An air intake pipeline, the air inlet end of which is arranged above the top of the melting chamber of the glass kiln so that the air flow is heated when passing through; the air outlet end of the air intake pipeline is connected to the combustion-supporting fan, and at least part of the air intake pipeline passes through the heat storage chamber of the glass kiln.

[0010] Preferably, the combustion-supporting air supply system further comprises a controller, the air intake pipeline is provided with a temperature sensor, the temperature sensor is signal-connected to the controller, and the controller is signal-connected to the combustion control system of the glass kiln.

[0011] Preferably, the air intake pipeline is provided with at least one foreign matter filtering device.

[0012] Preferably, the combustion-supporting supply system also includes an air supply pipeline, an oxygen supply pipeline and an oxygen supplementing device, the air supply pipeline is connected to the air outlet of the combustion-supporting blower, the oxygen supplementing device is connected to the air inlet end of the air supply pipeline through the oxygen supply pipeline, and an oxygen concentration detector is also arranged in the air supply pipeline, and the oxygen concentration detector is signal-connected to the oxygen supplementing device.

[0013] Preferably, part of the oxygen supply pipeline is located above the ceiling of the melting chamber so that the oxygen is heated when passing through.

[0014] Preferably, part of the oxygen supply pipeline passes through the heat storage chamber so that the oxygen is heated when passing through.

[0015] Preferably, the air supply pipeline is connected between the combustion-supporting blower and the combustion chamber of the glass furnace, wherein the first part of the air supply pipeline is located above the top of the melting chamber to heat the airflow in the air supply pipeline.

[0016] Preferably, the air supply pipeline is connected between the combustion-supporting blower and the combustion chamber of the glass furnace, wherein the second portion of the air supply pipeline passes through the heat storage chamber to heat the airflow in the air supply pipeline.

[0017] Preferably, the combustion-supporting fan is also connected to a bypass pipeline, and the air intake pipeline is provided with a multi-leaf valve, and the multi-leaf valve is used to adjust the ratio of the air flow rates entering the combustion-supporting fan from the bypass pipeline and the air intake pipeline.

[0018] The glass kiln is equipped with the combustion-supporting air supply system, and the combustion-supporting air supply system is used to input combustion-supporting air into the combustion chamber of the glass kiln.

[0019] The beneficial effects of the utility model are as follows: by arranging the air inlet end of the air intake pipeline above the crown of the melting chamber of the glass kiln and passing part of the air intake pipeline through the heat storage chamber of the glass kiln, the combustion air supply system can significantly increase the temperature of the combustion air, thereby realizing the effective utilization of the waste heat of the melting chamber and the heat storage chamber of the glass kiln, not only improving the energy utilization efficiency, but also reducing energy consumption and the demand for combustion air. After the temperature of the combustion air is increased, the combustion efficiency of the fuel can be improved, and the fuel can be burned more fully, thereby reducing the emission of unburned fuel residues and pollutants, reducing the cost of subsequent environmental protection treatment, and reducing the risk of flameout, ensuring the continuous and stable operation of the equipment, and improving the stability and quality of the glass production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a connection diagram of an existing glass furnace;

[0021] Figure 2 It is a connection schematic diagram of the glass kiln provided by the utility model.

[0022] In the figure:

[0023] 1. Melting chamber ceiling; 2. Regenerator; 3. Combustion-supporting fan; 4. Air intake pipeline. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0025] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0027] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0028] The following is based on the attached Figure 1 To Attachment Figure 2The combustion-supporting air supply system and glass kiln provided by the utility model are introduced. Figure 1 As shown, the existing combustion-supporting air supply system includes a combustion-supporting air fan 3, which is used to provide combustion-supporting air to the glass kiln. The combustion-supporting air and fuel are mixed and burned in the combustion chamber of the glass kiln, generating a large amount of heat, thereby melting the glass raw materials in the melting chamber, and then carrying out the glass making and forming process.

[0029] Specifically, Figure 2 As shown, the combustion-supporting air supply system includes a combustion-supporting fan 3 and an air intake pipe 4. The combustion-supporting fan 3 is responsible for driving the flow of the airflow to supply the combustion-supporting air to the glass furnace. In this embodiment, the air inlet end of the air intake pipe 4 is arranged above the small furnace aisle of the melting chamber crown 1 of the glass furnace, so that the airflow can absorb the high-temperature heat dissipated from the melting chamber and heat up during the flow. The air outlet end of the air intake pipe 4 is connected to the inlet of the combustion-supporting fan 3. At the same time, in order to further increase the temperature of the combustion-supporting air, part of the path of the air intake pipe 4 passes through the heat storage chamber 2 of the glass furnace, further absorbing the heat stored in the heat storage chamber 2.

[0030] By arranging the air inlet end of the air intake pipe 4 above the crown 1 of the melting chamber of the glass kiln, and passing part of the air intake pipe 4 through the heat storage chamber 2 of the glass kiln, the combustion-supporting air supply system can significantly increase the temperature of the combustion-supporting air, thereby realizing the effective utilization of the waste heat of the melting chamber and the heat storage chamber 2 of the glass kiln, which not only improves the energy utilization efficiency, but also reduces energy consumption and the demand for combustion-supporting air. When the temperature of the combustion-supporting air is increased, the combustion efficiency of the fuel can be improved, and the fuel can be burned more fully, thereby reducing the emission of unburned fuel residues and pollutants, reducing the cost of subsequent environmental protection treatment, and reducing the risk of flameout, ensuring the continuous and stable operation of the equipment, and improving the stability and quality of the glass manufacturing process. By way of example, in this embodiment, the energy saving effect is estimated to be above 5%.

[0031] Optionally, the combustion-supporting air supply system further includes a bypass pipeline, which is also connected to the combustion-supporting fan 3. The above-mentioned air intake pipeline 4 is provided with a multi-leaf valve, through which the ratio of the air flow from the bypass pipeline and the air intake pipeline 4 into the combustion-supporting fan 3 can be controlled to meet the combustion needs.

[0032] Preferably, the combustion-supporting air supply system further includes a controller. A temperature sensor is installed on the air intake pipeline 4, and the temperature sensor is connected to the controller signal to monitor and feedback the temperature of the combustion-supporting air in the air intake pipeline 4 in real time. At the same time, the controller is also connected to the combustion control system of the glass kiln signal, and according to the combustion-supporting air temperature information fed back by the temperature sensor, the operating parameters of the burner are adjusted through the combustion control system to maintain the temperature stability in the kiln.

[0033] Optionally, a foreign matter filter device, such as a wire mesh, is provided on the air intake pipeline 4. Since the airflow sucked from the top of the melting chamber 1 may carry particulate matter or dust, the air intake port is in the form of a bell mouth with a wire mesh. The foreign matter filter device can effectively remove these impurities, ensure the cleanliness of the combustion-supporting air, and reduce its negative impact on the combustion efficiency and equipment operation.

[0034] Specifically, the combustion-supporting air supply system of the present embodiment also includes an air supply pipeline, an oxygen supply pipeline and an oxygen supplementing device. The air supply pipeline is connected to the air outlet of the combustion-supporting air fan 3, and is used to deliver the heated combustion-supporting air to the burner. The oxygen supplementing device is connected to the air inlet end of the air supply pipeline through the oxygen supply pipeline to provide additional oxygen for the combustion-supporting air. In order to monitor the oxygen concentration in the air supply pipeline, an oxygen concentration detector is provided in the air supply pipeline. The detector is connected to the signal of the oxygen supplementing device. According to the detected oxygen concentration information, the supplement amount of the oxygen supplementing device is automatically adjusted to ensure that the oxygen content in the combustion-supporting air is in an optimal state and improve the combustion efficiency.

[0035] Preferably, part of the oxygen supply pipeline is arranged above the melting chamber ceiling 1. Such an arrangement enables the oxygen supplied from the oxygen supplement device to absorb the high temperature heat of the melting chamber and the regenerator 2 during the flow process and to increase the temperature, further increasing the temperature of the combustion-supporting air (after mixing with oxygen) entering the burner, thereby further improving the combustion efficiency and the speed of glass melting. Further preferably, the other part of the oxygen supply pipeline passes through the regenerator 2, which can also have the effect of increasing the oxygen temperature.

[0036] Further preferably, the air supply pipeline is connected between the combustion-supporting air blower 3 and the combustion chamber of the glass furnace, wherein the first part of the air supply pipeline is particularly arranged above the melting chamber crown 1. The purpose of this is to use the high temperature generated by the melting chamber to heat the air flow in the air supply pipeline. In this way, the combustion-supporting air can absorb more heat before entering the combustion chamber, thereby increasing its temperature and facilitating more complete combustion of the fuel.

[0037] Optionally, the second part of the air supply pipeline is also specially designed to pass through the regenerator 2. The heat stored in the regenerator 2 further heats the air flow in the air supply pipeline. This double heating design ensures that the combustion air reaches a higher temperature before entering the combustion chamber, thereby further improving the combustion efficiency and the speed of glass melting.

[0038] In the above-mentioned embodiment, the first part or the second part of the air supply pipeline is a bent pipeline. This bending design is to increase the flow path of the air flow in the pipeline, so that the combustion-supporting air can absorb heat more fully. At the same time, the bent pipeline also helps the oxygen to be evenly mixed in the air supply pipeline, which is conducive to full combustion in the combustion chamber.

[0039] The utility model also provides a glass kiln, which is equipped with the combustion-supporting air supply system as described above. By arranging the air inlet end of the air intake pipe 4 above the melting chamber crown 1 of the glass kiln, and allowing part of the air intake pipe 4 to pass through the heat storage chamber 2 of the glass kiln, the combustion-supporting air supply system can significantly increase the temperature of the combustion-supporting air, thereby achieving effective utilization of waste heat from the melting chamber and the heat storage chamber 2 of the glass kiln, which not only improves energy utilization efficiency but also reduces energy consumption. When the temperature of the combustion-supporting air is increased, the combustion efficiency of the fuel can be improved, and the fuel can be burned more fully, thereby reducing the emission of unburned fuel residues and pollutants, and can reduce the risk of flameout, ensure the continuous and stable operation of the equipment, and improve the stability and quality of the glassmaking process.

[0040] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. Combustion air supply system, characterized in that: include: A combustion-supporting fan (3), wherein the combustion-supporting fan (3) is capable of driving air flow; An air intake pipeline (4), wherein the air intake end of the air intake pipeline (4) is arranged above the melting chamber ceiling (1) of the glass furnace so that the air flow is heated when passing through; the air outlet end of the air intake pipeline (4) is connected to the combustion-supporting fan (3), and at least a portion of the air intake pipeline (4) passes through the heat storage chamber (2) of the glass furnace.

2. The combustion-supporting air supply system according to claim 1, characterized in that: The combustion-supporting air supply system further comprises a controller, the air intake pipeline (4) is provided with a temperature sensor, the temperature sensor is signal-connected to the controller, and the controller is signal-connected to the combustion control system of the glass kiln.

3. The combustion-supporting air supply system according to claim 1, characterized in that: The air intake pipeline (4) is provided with at least one foreign matter filtering device.

4. The combustion-supporting air supply system according to claim 1, characterized in that: The combustion-supporting air supply system further comprises an air supply pipeline, an oxygen supply pipeline and an oxygen supplement device, wherein the air supply pipeline is connected to the air outlet of the combustion-supporting fan (3), and the oxygen supplement device is connected to the air inlet end of the air supply pipeline through the oxygen supply pipeline, and an oxygen concentration detector is also arranged in the air supply pipeline, and the oxygen concentration detector is connected to the oxygen supplement device by signal.

5. The combustion-supporting air supply system according to claim 4, characterized in that: Part of the oxygen supply pipeline is located above the melting chamber ceiling (1) so that the oxygen is heated when passing through.

6. The combustion-supporting air supply system according to claim 5, characterized in that: Part of the oxygen supply pipeline passes through the heat storage chamber (2) so that the temperature of the oxygen increases when passing through.

7. The combustion-supporting air supply system according to claim 4, characterized in that: The air supply pipeline is connected between the combustion-supporting blower (3) and the combustion chamber of the glass furnace, wherein the first part of the air supply pipeline is located above the melting chamber ceiling (1) to heat the air flow in the air supply pipeline.

8. The combustion-supporting air supply system according to claim 7, characterized in that: The air supply pipeline is connected between the combustion-supporting blower (3) and the combustion chamber of the glass furnace, wherein the second part of the air supply pipeline passes through the heat storage chamber (2) to heat the air flow in the air supply pipeline.

9. The combustion-supporting air supply system according to claim 1, characterized in that: The combustion-supporting blower (3) is also connected to a bypass pipeline, and the air intake pipeline (4) is provided with a multi-leaf valve, and the multi-leaf valve is used to adjust the ratio of the air flow rate entering the combustion-supporting blower (3) from the bypass pipeline and the air intake pipeline (4).

10. A glass furnace, characterized in that: A combustion-supporting air supply system as described in any one of claims 1 to 9 is installed, and the combustion-supporting air supply system is used to input combustion-supporting air into the combustion chamber of the glass furnace.

Images