Efficient tilting rotary furnace pure oxygen combustion system

Abstract

The utility model relates to the technical field of rotary furnaces, in particular to an efficient tilting rotary furnace pure oxygen combustion system which comprises a combustion gun, a thermocouple, a programmable controller, a combustion controller, a pure oxygen electromagnetic valve, a pure oxygen flow meter, a pure oxygen adjusting proportional valve, a natural gas electromagnetic valve, a natural gas flow meter and a natural gas adjusting proportional valve. Pure oxygen enters the burning gun through a pure oxygen electromagnetic valve, a pure oxygen flow meter and a pure oxygen adjusting proportional valve, meanwhile, natural gas enters the burning gun through a natural gas electromagnetic valve, a natural gas flow meter and a natural gas adjusting proportional valve, at the moment, the programmable controller receives an ignition signal, the pure oxygen burning controller conducts ignition, ignition success detection is conducted, and the burning gun is started. If the ignition is not successful, the natural gas and pure oxygen electromagnetic valves are quickly turned off to ensure that the natural gas and the pure oxygen are not leaked, and after the ignition is successful, the natural gas and the pure oxygen are combusted to increase the temperature in the furnace body, and the thermocouple feeds back the real-time temperature in the furnace body.

Description

Technical Field

[0001] This utility model relates to the field of rotary furnace technology, specifically to a high-efficiency tilting rotary furnace pure oxygen combustion system. Background Technology

[0002] With increasing environmental awareness and growing demand for non-ferrous metals, high-efficiency tilting rotary furnaces will attract more and more market attention, and their combustion control systems are constantly evolving. Currently, most rotary furnaces use manually operated valves to mix natural gas and pure oxygen before manual ignition. Manual valve control means that when the gas source changes, the valves may not adjust in time, leading to incomplete combustion of the natural gas and pure oxygen mixture. Temperature control is also manually adjustable, resulting in a wide range. Manual operation is not only inefficient but also poses significant safety risks. To address these shortcomings, a new technical solution is proposed. Utility Model Content

[0003] The purpose of this invention is to solve the problems of low efficiency and high safety risks of manual operation in the prior art, and to propose a high-efficiency tilting rotary furnace pure oxygen combustion system.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] Design a high-efficiency tilting rotary furnace pure oxygen combustion system, including a burner, thermocouple, programmable controller, combustion controller, pure oxygen solenoid valve, pure oxygen flow meter, pure oxygen regulating proportional valve, natural gas solenoid valve, natural gas flow meter, and natural gas regulating proportional valve.

[0006] The two air inlets of the combustion lance are connected to a pure oxygen regulating proportional valve and a natural gas regulating proportional valve respectively via pipelines. The end of the natural gas regulating proportional valve away from the combustion lance is connected to a natural gas flow meter via a pipeline. The end of the natural gas flow meter away from the natural gas regulating proportional valve is connected to a natural gas flow meter via a pipeline. The end of the pure oxygen regulating proportional valve away from the combustion lance is connected to a pure oxygen flow meter via a pipeline. The end of the pure oxygen flow meter away from the pure oxygen regulating proportional valve is connected to a pure oxygen solenoid valve via a pipeline. The pure oxygen flow meter, natural gas flow meter, pure oxygen regulating proportional valve, natural gas regulating proportional valve, combustion controller, and thermocouple are all electrically connected to a programmable controller. The combustion controller is electrically connected to both the pure oxygen solenoid valve and the natural gas solenoid valve.

[0007] Preferably, the combustion controller is located inside the combustion gun.

[0008] Preferably, the programmable controller can receive ignition signals from an external controller, control the combustion controller to ignite, and detect successful ignition.

[0009] If ignition fails, the programmable controller quickly shuts off the solenoid valves for natural gas and pure oxygen to ensure no leakage of natural gas and pure oxygen.

[0010] Preferably, the thermocouple is installed inside the rotary furnace to provide real-time temperature feedback inside the rotary furnace.

[0011] Preferably, the programmable controller is capable of controlling the pure oxygen regulating proportional valve and the natural gas regulating proportional valve to control the flow rates of pure oxygen and natural gas.

[0012] This utility model proposes a high-efficiency tilting rotary furnace pure oxygen combustion system, the advantages of which are as follows: pure oxygen enters the burner through a pure oxygen solenoid valve, a pure oxygen flow meter, and a pure oxygen regulating proportional valve, while natural gas also enters the burner through a natural gas solenoid valve, a natural gas flow meter, and a natural gas regulating proportional valve. At this time, the programmable controller receives the ignition signal, the pure oxygen combustion controller initiates ignition, and performs ignition success detection. If ignition fails, the natural gas and pure oxygen solenoid valves are quickly shut off to ensure no leakage of natural gas and pure oxygen. After successful ignition, the combustion of natural gas and pure oxygen raises the temperature inside the furnace. Thermocouples provide feedback on the real-time temperature inside the furnace, and the data is transmitted to the programmable controller for PID algorithm processing to adjust the opening of the proportional valve in a timely manner, ensuring that the temperature remains within the set range. Thus, the ignition and heating operations of the high-efficiency tilting rotary furnace air-fuel system can be fully automated, eliminating the need for manual operation and ensuring personal safety. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] In the diagram: 1. Pure oxygen solenoid valve; 2. Pure oxygen flow meter; 3. Pure oxygen regulating proportional valve; 4. Programmable controller; 5. Combustion controller; 6. Burning torch; 7. Thermocouple; 8. Natural gas solenoid valve; 9. Natural gas flow meter; 10. Natural gas regulating proportional valve. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings:

[0016] This embodiment proposes a high-efficiency tilting rotary furnace pure oxygen combustion system, such as... Figure 1 As shown, it includes a combustion gun 6, a thermocouple 7, a programmable controller 4, a combustion controller 5, a pure oxygen solenoid valve 1, a pure oxygen flow meter 2, a pure oxygen regulating proportional valve 3, a natural gas solenoid valve 8, a natural gas flow meter 9, and a natural gas regulating proportional valve 10.

[0017] The connection port on the side of the pure oxygen solenoid valve 1 away from the flow meter 2 is used to connect to the pure oxygen pipeline, so that pure oxygen can enter the inside of the burner 6 through the pure oxygen solenoid valve 1, the flow meter 2, and the pure oxygen regulating proportional valve 3.

[0018] The side of the natural gas solenoid valve 8 away from the natural gas flow meter 9 is used to connect to the natural gas pipeline, so that pure oxygen can enter the burner 6 through the natural gas solenoid valve 8, the natural gas flow meter 9, and the natural gas regulating proportional valve 10.

[0019] The pure oxygen flow meter 2 is used to monitor the flow rate of pure oxygen and transmit the monitored data to the programmable controller 5, so that the programmable controller 5 controls the pure oxygen regulating proportional valve 3 to regulate the flow rate of pure oxygen.

[0020] The natural gas flow meter 9 is used to monitor the flow rate of natural gas and transmit the monitored data to the programmable controller 5, thereby the programmable controller 5 controls the natural gas regulating proportional valve 10 to regulate the flow rate of natural gas.

[0021] The two air inlets of the combustion lance 6 are connected to the pure oxygen regulating proportional valve 3 and the natural gas regulating proportional valve 10 respectively via pipelines. The connection end of the natural gas regulating proportional valve 10 away from the combustion lance 6 is connected to the natural gas flow meter 9 via a pipeline. The connection end of the natural gas flow meter 9 away from the natural gas regulating proportional valve 10 is connected to the natural gas flow meter 9 via a pipeline. The connection end of the pure oxygen regulating proportional valve 3 away from the combustion lance 6 is connected to the pure oxygen flow meter 2 via a pipeline. The connection end of the pure oxygen flow meter 2 away from the pure oxygen regulating proportional valve 3 is connected to the pure oxygen solenoid valve 1 via a pipeline. The pure oxygen flow meter 2, the natural gas flow meter 9, the pure oxygen regulating proportional valve 3, the natural gas regulating proportional valve 10, the combustion controller 5, and the thermocouple 7 are all electrically connected to the programmable controller 4. The combustion controller 5 is electrically connected to the pure oxygen solenoid valve 1 and the natural gas solenoid valve 8 respectively.

[0022] The combustion equation is: CH4 + 2O2 = CO2 + 2H2O, meaning that 1 cubic meter of methane requires 2 cubic meters of oxygen for complete combustion. For natural gas and pure oxygen to burn completely, excess pure oxygen and natural gas are prevented from causing chemical or physical reactions with the materials. By controlling the flow rates of natural gas and pure oxygen, the natural gas can be fully combusted in the furnace, achieving better economic efficiency. A PID algorithm is also used to control the combustion power, ultimately controlling the melting temperature within the furnace. This invention features a simple structure, convenient operation, flexibility, and precise control.

[0023] Upon receiving the ignition signal, the programmable controller (PLC) initiates ignition and performs a success detection. If ignition fails, the natural gas and pure oxygen solenoid valves are quickly shut off to prevent leakage. After successful ignition, the natural gas and pure oxygen burn, raising the furnace temperature. Thermocouples provide real-time temperature feedback, which is then transmitted to the PLC for PID algorithm processing. This process adjusts the proportional valve opening to maintain the temperature within the set range.

[0024] The combustion controller 5 is located inside the combustion gun 6. The programmable controller 4 can receive the ignition signal from the external controller and control the combustion controller 5 to ignite. It can also detect successful ignition. If ignition fails, the programmable controller 4 quickly shuts off the natural gas and pure oxygen solenoid valves 1 to ensure no leakage of natural gas and pure oxygen. Thermocouple 7 is located inside the rotary furnace to provide feedback on the real-time temperature inside the rotary furnace. The programmable controller 4 can control the pure oxygen regulating proportional valve 3 and the natural gas regulating proportional valve 10 to control the flow rate of pure oxygen and natural gas.

[0025] Specifically, pure oxygen enters the burner 6 through pure oxygen solenoid valve 1, pure oxygen flow meter 2, and pure oxygen regulating proportional valve 3. At the same time, natural gas also enters the burner 6 through natural gas solenoid valve 8, natural gas flow meter 9, and natural gas regulating proportional valve 10. At this time, the programmable controller 4 receives the ignition signal, the pure oxygen combustion controller 5 performs ignition, and performs ignition success detection. If ignition fails, the natural gas and pure oxygen solenoid valves 1 are quickly shut off to ensure no leakage of natural gas and pure oxygen. After successful ignition, the combustion of natural gas and pure oxygen raises the temperature inside the furnace. Thermocouple 7 feeds back the real-time temperature inside the furnace and transmits the data to the programmable controller 4 for PID algorithm processing, adjusting the opening of the proportional valve in a timely manner to ensure that the temperature is within the set range.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The ignition and heating operations of the high-efficiency tilting rotary furnace air-fuel system can be fully automated, eliminating the need for manual operation and ensuring personal safety. The valves and proportional regulating valves of the high-efficiency tilting rotary furnace gas control system are all controlled by a programmable controller, which reacts quickly and shuts off immediately, ensuring rapid cutoff of gas and pure oxygen in the event of equipment failure. The combustion control of the high-efficiency tilting rotary furnace pure oxygen-gas control system is controlled by a programmable controller through PID calculation, which is precise, maintains a fixed combustion ratio, achieves maximum combustion efficiency, reduces manual operation time, and increases work efficiency.

[0028] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A high efficiency tilting rotary furnace pure oxygen combustion system characterized by: The burner lance, thermocouple, programmable controller, combustion controller, pure oxygen solenoid valve, pure oxygen flow meter, pure oxygen regulating proportional valve, natural gas solenoid valve, natural gas flow meter and natural gas regulating proportional valve are included. The two side gas inlet ends of the burner lance are connected with the pure oxygen regulating proportional valve and the natural gas regulating proportional valve respectively through pipelines, the connection end of the natural gas regulating proportional valve away from the burner lance is connected with the natural gas flow meter through a pipeline, the connection end of the natural gas flow meter away from the natural gas regulating proportional valve is connected with the natural gas flow meter through a pipeline, the connection end of the pure oxygen regulating proportional valve away from the burner lance is connected with the pure oxygen flow meter through a pipeline, the connection end of the pure oxygen flow meter away from the pure oxygen regulating proportional valve is connected with the pure oxygen solenoid valve through a pipeline, and the pure oxygen flow meter, the natural gas flow meter, the pure oxygen regulating proportional valve, the natural gas regulating proportional valve, the combustion controller and the thermocouple are electrically connected with the programmable controller.

2. A high efficiency tilting rotary furnace pure oxygen combustion system according to claim 1, characterized in that: The combustion controller is arranged in the interior of the burner lance.

3. A high efficiency tilting rotary furnace pure oxygen combustion system according to claim 1, characterized in that: The programmable controller can receive an ignition signal from an external controller, control the combustion controller to ignite, and detect whether the ignition is successful. When the ignition is not successful, the programmable controller can quickly turn off the natural gas and pure oxygen solenoid valves to ensure that there is no leakage of natural gas and pure oxygen.

4. A high efficiency tilting rotary furnace pure oxygen combustion system as claimed in claim 1, wherein: The thermocouple is arranged in the interior of the rotary furnace to feedback the real-time temperature in the rotary furnace.

5. The high-efficiency tilting rotary furnace pure oxygen combustion system according to claim 1, characterized in that: The programmable controller can control the pure oxygen regulating proportional valve and the natural gas regulating proportional valve to control the flow of pure oxygen and natural gas.

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