A double-burner temperature control smelting device based on gas heating

Abstract

The application belongs to the technical field of smelting devices, and provides a double-burner temperature control smelting device based on gas heating. The double-burner temperature control smelting device based on gas heating comprises a combustion-supporting gas pipe, a combustible gas pipe, a main combustion burner, an auxiliary combustion burner, a heat exchanger and a fan. The combustible gas pipe has a connecting hole and is communicated with the main combustion burner through the connecting hole. One end of the combustible gas pipe is communicated with an external combustible gas source, and the other end of the combustible gas pipe is communicated with the auxiliary combustion burner. One end of the combustion-supporting gas pipe is communicated with the main combustion burner, and the other end of the combustion-supporting gas pipe is communicated with the heat exchanger. The fan is communicated with the heat exchanger. The combustion-supporting gas pipe has an auxiliary branch pipe which is communicated with the auxiliary combustion burner. The device can realize central smelting and side auxiliary heating, accelerate the smelting process and improve the smelting efficiency.

Description

Technical Field

[0001] This invention relates to the field of smelting equipment technology, and specifically to a dual-burner smelting temperature control device based on gas heating. Background Technology

[0002] The traditional heating method of smelting furnaces uses the furnace as a carrier, heating the furnace to conduct the high temperature to the metal inside, and then melting it; this greatly increases the energy consumption of combustion. To reduce combustion energy consumption, engineers placed the burners above the furnace opening of the smelting furnace, which allows the flame to be conducted from top to bottom to the metal in the furnace. This reduces the process of heat transfer from the center to the furnace, thus greatly improving combustion efficiency. However, because the burners are placed in the center, the smelting process is relatively slow, as the heat conduction effect of metal diffuses from the center to the periphery.

[0003] Therefore, in order to accelerate the smelting efficiency, a smelting device with dual combustion burners was designed, which can achieve the effect of central smelting and peripheral heating, thereby accelerating the smelting process. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a dual-burner temperature-controlled melting device based on gas heating to improve melting efficiency. A dual-burner temperature-controlled melting device based on gas heating includes: a gas-supporting pipe, a combustible gas pipe, a main combustion burner, an auxiliary combustion burner, a heat exchanger, and a fan; the combustible gas pipe has a connecting hole and communicates with the main combustion burner through the connecting hole; one end of the combustible gas pipe is connected to an external combustible gas source, and the other end of the combustible gas pipe is connected to the auxiliary combustion burner; one end of the gas-supporting pipe is connected to the main combustion burner, wherein the auxiliary combustion burner is located near the furnace door; the other end of the gas-supporting pipe is connected to the heat exchanger, and the fan is connected to the heat exchanger; the gas-supporting pipe has an auxiliary branch pipe, and the auxiliary branch pipe is connected to the auxiliary combustion burner.

[0005] Furthermore, it also includes a pressure control unit installed in the combustible gas pipe. The pressure control unit includes a high-pressure detector, a low-pressure detector, and a flow-pressure transmitter. The high-pressure detector and the low-pressure detector respectively detect the gas pressure in the combustible gas pipe and are electrically connected to the flow-pressure transmitter. In practical applications, the high-pressure detector and the low-pressure detector monitor the natural gas pressure in the combustible gas pipe, and the flow-pressure transmitter controls the flow rate. This reduces the need for pressure control valves, saving costs and meeting natural gas safety regulations.

[0006] Furthermore, it also includes a filter installed in the combustible gas pipe, close to the external gas source; the filter is used to filter combustible gas. In practical applications, this filter is mainly used to filter natural gas, that is, combustible gas, to ensure more complete and pure combustion.

[0007] Furthermore, it also includes a proportional valve, which is installed in the combustible gas pipe and located in the area between the connection hole and the auxiliary combustion burner; the proportional valve is used to distribute the amount of combustible gas at the auxiliary combustion burner and the main combustion burner. In practical applications, by distributing the proportion of natural gas, combustion stages are achieved, allowing the main combustion burner to obtain more natural gas.

[0008] Furthermore, it also includes a manual valve, which has three locations: two are installed near the main combustion burner and the auxiliary combustion burner, respectively; the other is installed in the combustible gas pipe, near the external combustible gas source; the manual valve is used to control opening and closing. In actual use, the overall system uses electromagnetic control valves to achieve automated operation, but to improve safety performance, manual valves are also used to manually shut off or open the system, providing a final safety barrier.

[0009] Furthermore, the auxiliary combustion burner is located to one side of the main combustion burner, and is rotatably mounted between and connected to the combustion-supporting gas pipe and the combustible gas pipe. In practical applications, this allows for heating and melting of the smelting furnace from the inside out, facilitating improved metal smelting efficiency.

[0010] Furthermore, the system also includes a combustion-supporting fan, which is installed in the combustion-supporting pipe and communicates with the heat exchanger, located close to the main combustion burner. In practical applications, this design primarily assists the main combustion burner by providing it with combustion oxygen and accelerating gas flow in the combustion-supporting pipe.

[0011] Furthermore, it also includes an auxiliary combustion fan, which is installed in the auxiliary branch pipe and close to the auxiliary combustion burner. In practical applications, this design is mainly to assist the main combustion burner by providing it with combustion oxygen and accelerating the gas flow in the auxiliary combustion pipe.

[0012] Furthermore, it also includes a solenoid valve, which is disposed in two locations within the combustible gas pipe, one in the direction of the main combustion burner and the other in the direction of the auxiliary combustion burner. In practical applications, this solenoid valve can be controlled by current to automatically control the opening and closing of the combustible gas pipe, thereby opening and closing the main combustion burner and the auxiliary combustion burner, achieving automated operation.

[0013] Furthermore, the heat exchanger is installed in the combustion furnace and is used to conduct the high temperature of combustion at the main combustion burner and the auxiliary combustion burner into the combustion furnace.

[0014] As can be seen from the above technical solution, the beneficial effects of the dual-burner temperature-controlled melting device based on gas heating provided by the present invention are as follows: (1) In practical application, the main combustion burner and auxiliary combustion burner in the device are used for smelting metals, and natural gas in the combustible gas pipe provides combustion energy for the whole device.

[0015] (2) And through the heat exchanger and the fan, on the one hand, the heat is transferred back to the smelting furnace, and on the other hand, the fan can accelerate the gas flow in the heat exchanger and the combustion pipe to achieve combustion oxygen supply and form a spraying form similar to a welding torch to accelerate smelting.

[0016] (3) It also supplies oxygen to the auxiliary combustion burner through the auxiliary branch pipe.

[0017] (4) Furthermore, the auxiliary combustion burner is placed near the furnace door; this creates an active heat insulation effect at the furnace door, which is the area that is easy to exchange heat with the ambient temperature, thus avoiding heat loss from the main combustion burner. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the description of the specific embodiments or prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a front view of a three-dimensional structural schematic diagram of a dual-burner temperature-controlled melting device based on gas heating, according to an embodiment of the present invention. Figure 2 This is a front view of a dual-burner temperature-controlled melting apparatus based on gas heating, according to an embodiment of the present invention. Figure 3 This is a rear view of a dual-burner temperature-controlled melting apparatus based on gas heating, provided as an embodiment of the present invention.

[0020] Figure label: 1. Combustion-supporting pipe, 101. Auxiliary branch pipe, 2. Combustible gas pipe, 21. Connection hole, 3. Main combustion burner, 4. Auxiliary combustion burner, 5. Heat exchanger, 6. Fan, 7. Pressure control unit, 71. High pressure detector, 72. Low pressure detector, 73. Flow and pressure transmitter, 8. Filter, 9. Proportional valve, 10. Manual valve, 11. Combustion-supporting fan, 12. Auxiliary combustion fan, 13. Solenoid valve. Detailed Implementation

[0021] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0022] The basic implementation examples are as follows: Figures 1 to 3 As shown: Example 1: like Figures 1-3 As shown in the figure, this embodiment provides a dual-burner temperature-controlled melting device based on gas heating to improve melting efficiency. A dual-burner temperature-controlled smelting device based on gas heating includes: a gas-supporting pipe 1, a combustible gas pipe 2, a main combustion burner 3, an auxiliary combustion burner 4, a heat exchanger 5, and a fan 6. The combustible gas pipe 2 has a connecting hole 21 and communicates with the main combustion burner 3 through the connecting hole 21. One end of the combustible gas pipe 2 is connected to an external combustible gas source, and the other end is connected to the auxiliary combustion burner 4. The auxiliary combustion burner 4 is located near the furnace door. One end of the gas-supporting pipe 1 is connected to the main combustion burner 3, and the other end is connected to the heat exchanger 5. The fan 6 is connected to the heat exchanger 5. The gas-supporting pipe 1 has an auxiliary branch pipe 101, which is connected to the auxiliary combustion burner 4. In practical applications, the main combustion burner 3 and the auxiliary combustion burner 4 in this device are used for smelting metals, with natural gas in the combustible gas pipe 2 providing combustion energy for the entire device. The heat exchanger 5 is connected to the fan 6, which on the one hand conducts heat back to the smelting furnace, and on the other hand, the fan 6 accelerates the gas flow between the heat exchanger 5 and the combustion-supporting pipe 1, realizing combustion oxygen supply and forming a spraying pattern similar to a welding torch to accelerate smelting. Furthermore, the auxiliary branch pipe 101 supplies oxygen to the auxiliary combustion burner 4 for combustion support. The auxiliary combustion burner 4 is positioned near the furnace door; this creates an active heat insulation effect at the furnace door, the area most prone to heat exchange with the ambient temperature, preventing heat loss from the main combustion burner 3.

[0023] In this embodiment, to ensure controllable pressure in the combustible gas pipe 2, a pressure control unit 7 is further included. The pressure control unit 7 is installed in the combustible gas pipe 2 and includes a high-pressure detector 71, a low-pressure detector 72, and a flow-pressure transmitter 73. The high-pressure detector 71 and the low-pressure detector 72 respectively detect the gas pressure in the combustible gas pipe 2 and are electrically connected to the flow-pressure transmitter 73. In practical applications, the high-pressure detector 71 and the low-pressure detector 72 monitor the natural gas pressure in the combustible gas pipe 2, and the flow-pressure transmitter 73 controls the pressure based on the natural gas flow rate. This reduces the need for pressure control valves, saving costs and meeting natural gas safety regulations.

[0024] To further purify combustible gas and improve combustion efficiency, this embodiment also includes a filter 8, which is installed in the combustible gas pipe 2 and close to the external gas source. The filter 8 is used to filter combustible gas. In practical applications, this filter 8 is mainly used to filter natural gas, i.e., combustible gas, thus ensuring more complete and purer combustion.

[0025] To further facilitate complete combustion between the auxiliary combustion burner 4 and the main combustion burner 3, this embodiment also includes a proportional valve 9. The proportional valve 9 is installed in the combustible gas pipe 2 and located in the area between the connection hole 21 and the auxiliary combustion burner 4. The proportional valve 9 is used to distribute the amount of combustible gas between the auxiliary combustion burner 4 and the main combustion burner 3. In practical applications, by distributing the natural gas in a specific ratio, combustion stages are achieved, allowing the main combustion burner 3 to obtain more natural gas.

[0026] To further enhance overall safety, this embodiment also includes a manual valve 10. The manual valve 10 has three locations: two are installed near the main combustion burner 3 and near the auxiliary combustion burner 4, respectively; the other is installed in the combustible gas pipe 2, near the external combustible gas source. The manual valve 10 is used to control opening and closing. In practical applications, an electromagnetic control valve is used for automated operation, but to improve safety, the manual valve 10 is also used for manual shut-off or opening, providing a final safety barrier.

[0027] In this embodiment, the auxiliary combustion burner 4 is located on one side of the main combustion burner 3, and is rotatably installed between the combustion-supporting pipe 1 and the combustible gas pipe 2, and is connected to them. In practical applications, this allows for heating and melting of the smelting furnace from the inside out, facilitating improved metal smelting efficiency; furthermore, the rotatable installation of the auxiliary combustion burner 4 allows for adjustment of its flame direction, which is beneficial for effectively melting metals of different sizes.

[0028] In this embodiment, a combustion-supporting fan 11 is also included. The combustion-supporting fan 11 is installed in the combustion-supporting pipe 1, communicates with the heat exchanger 5, and is positioned close to the main combustion burner 3. In practical applications, this design primarily assists the main combustion burner 3 by providing it with combustion oxygen and accelerating gas flow in the combustion-supporting pipe 1. Simultaneously, to further ensure that the auxiliary combustion burner 4 can also perform combustion, an auxiliary combustion fan 12 is included. The auxiliary combustion fan 12 is installed in the auxiliary branch pipe 101 and is positioned close to the auxiliary combustion burner 4. In practical applications, this design primarily assists the main combustion burner 3 by providing it with combustion oxygen and accelerating gas flow in the combustion-supporting pipe 1.

[0029] Furthermore, to achieve overall electrification and automated control, this embodiment also includes a solenoid valve 13. The solenoid valve 13 is disposed in two locations within the combustible gas pipe 2, respectively positioned in the direction of the main combustion burner 3 and the auxiliary combustion burner 4. In practical applications, the solenoid valve 13 can be controlled by current to automatically control the opening and closing of the combustible gas pipe 2, thereby opening and closing the main combustion burner 3 and the auxiliary combustion burner 4, achieving automated operation.

[0030] In this embodiment, the heat exchanger 5 is installed in the combustion furnace and is used to conduct the high temperature of combustion at the main combustion burner 3 and the auxiliary combustion burner 4 into the combustion furnace.

[0031] In summary, this gas-fired dual-burner temperature-controlled melting device is not only simple in structure but also rationally designed, effectively improving combustion efficiency. Furthermore, the dual-burner configuration ensures increased melting efficiency during metal smelting, making it suitable for widespread industry adoption.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A dual-burner temperature-controlled melting device based on gas heating, characterized in that, include: The furnace includes a combustion-supporting pipe, a combustible gas pipe, a main combustion burner, an auxiliary combustion burner, a heat exchanger, and a fan. The combustible gas pipe has a connecting hole and communicates with the main combustion burner through the connecting hole. One end of the combustible gas pipe is connected to an external combustible gas source, and the other end of the combustible gas pipe is connected to the auxiliary combustion burner. The auxiliary combustion burner is located near the furnace door to form active heat insulation. One end of the combustion-supporting pipe is connected to the main combustion burner, and the other end of the combustion-supporting pipe is connected to the heat exchanger. The fan is connected to the heat exchanger. The combustion-supporting pipe has an auxiliary branch pipe, which is connected to the auxiliary combustion burner; The auxiliary combustion burner is located on one side of the main combustion burner; and the auxiliary combustion burner is rotatably installed between the combustion-supporting pipe and the combustible gas pipe, and is connected to them.

2. The dual-burner temperature-controlled melting device based on gas heating according to claim 1, characterized in that, Also includes: A pressure control unit is installed in the combustible gas pipe, and the pressure control unit includes a high-pressure detector, a low-pressure detector, and a flow-pressure transmitter. The high-pressure detector and the low-pressure detector respectively detect the gas pressure in the combustible gas pipe and are electrically connected to the flow and pressure transmitter.

3. The dual-burner temperature-controlled melting device based on gas heating according to claim 1, characterized in that, It also includes a filter installed in the combustible gas pipe and close to the external gas source; the filter is used to filter combustible gas.

4. The dual-burner temperature-controlled melting device based on gas heating according to claim 1, characterized in that, It also includes a proportional valve, which is installed in the combustible gas pipe and located in the area between the connection hole and the auxiliary combustion burner; the proportional valve is used to distribute the amount of combustible gas at the auxiliary combustion burner and the main combustion burner.

5. The dual-burner temperature-controlled melting device based on gas heating according to claim 1, characterized in that, It also includes a hand valve, which has three locations, two of which are installed near the main combustion burner and the auxiliary combustion burner, respectively; the other is installed in the combustible gas pipe, near the external combustible gas source; the hand valve is used to control opening and closing.

6. The dual-burner temperature-controlled melting device based on gas heating according to claim 1, characterized in that, It also includes a combustion-supporting fan, which is installed in the combustion-supporting pipe and communicates with the heat exchanger, and is located near the main combustion burner.

7. A dual-burner temperature-controlled melting apparatus based on gas heating according to claim 1, characterized in that, It also includes an auxiliary combustion fan, which is installed in the auxiliary branch pipe and close to the auxiliary combustion burner.

8. A dual-burner temperature-controlled melting device based on gas heating according to claim 1, characterized in that, It also includes a solenoid valve, which is disposed in the combustible gas pipe and has two locations, respectively disposed in the direction of the main combustion burner and the auxiliary combustion burner.

9. A dual-burner temperature-controlled melting apparatus based on gas heating according to claim 1, characterized in that, The heat exchanger is installed in the combustion furnace and is used to conduct the high temperature of combustion at the main combustion burner and the auxiliary combustion burner into the combustion furnace.

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