Regenerative baking device: The energy-saving effect is more than 35% better than conventiona

Zhongwei ZWKB series baking machines are classified according to the different fuels used: natural gas baking machine, liquefied gas baking machine, blast furnace gas baking machine, coke oven gas baking machine, converter gas baking machine, yellow phosphorus tail gas baking machine, carbide furnace tail gas baking machine, light hydrocarbon gas baking machine, diesel oil baking machine, heavy oil baking machine, electric heating baking machine, etc. According to energy-saving technical requirements, it is classified as: conventional combustion baking machine and regenerative combustion baking machine

Zhengzhou Zhongwei Environmental Protection Equipment Co., Ltd. ZWX series regenerative burner and automatic combustion control system (PLC automatic control) are widely used in regenerative heating furnaces and regenerative baking equipment, greatly improving the energy-saving effect of the equipment.

1、 The straight flame burner of Zhongwei regenerative bag baking device has been optimized and designed in various aspects such as the nozzle, thermal storage volume, and combustion control. It saves more than 30% energy compared to ordinary burners and has significant energy-saving effects. The characteristics are as follows:

1.2. The castable used for the heat storage burner has a service life of more than 3 years.

1.3. Pulse combustion technology is adopted, and the temperature control method is controlled by PLC to strengthen the heat transfer inside the furnace and ensure uniform furnace temperature.

1.4. The smoke exhaust method is forced smoke exhaust, ensuring stable furnace temperature and pressure, and ensuring the accuracy of temperature and pressure control.

1.5. The entire system of the furnace, including natural gas, combustion air, furnace pressure, and smoke exhaust system, shall be equipped with interlocking protection, alarm, automatic and manual adjustment, etc. to ensure the operation of the furnace.

2、 Configuration characteristics of regenerative burner and combustion control system:

1. Burner type and arrangement: Paired configuration of the toaster, regenerative burner: Each burner is equipped with an ignition gun (ignition burner), flame monitor, high-pressure igniter, burner controller, high fire solenoid valve, gas flow control valve, ignition solenoid valve, ignition air fuel ratio valve, etc., forming a pulse combustion system. A flow meter is installed in the natural gas main to monitor and calculate the consumption of natural gas in real-time. To ensure the stable pressure of the natural gas system, a pressure regulating valve is installed behind the flow meter to ensure the normal operation of the burner. Each group of burners uses a four-way directional valve to achieve pulse combustion of the burners, and uses a motor frequency converter to control the fan speed to achieve the size of the air supply and smoke exhaust volume.

3. Characteristics of combustion system:

3.1. Use high-temperature combustion air, with a hot air temperature of up to 900 ℃, to improve fuel utilization efficiency;

3.2. Pulse alternating lean oxygen combustion reduces NOx emissions and fully complies with environmental emission standards.

3.3. The regenerative burner has good adjustment performance (automatically adjusted according to the baking process curve) and is suitable for various heating speed process requirements;

3.4. Convenient replacement, installation, and testing of the heat storage body.

4、 Electrical control system control plan:

1. According to the set temperature and process curve, automatically adjust the weather flow rate, combustion air volume, and smoke exhaust volume to change the flame size and accurately control the temperature.

2. The instrument displays the pressure, flow rate, and cumulative flow rate of the gas (a flow meter needs to be installed);

3. The furnace pressure is detected using a micro differential pressure capacitive pressure transmitter, and the flow of the smoke exhaust fan is digitally controlled to automatically adjust the furnace pressure; When there is a significant fluctuation in furnace pressure during reversing, an auxiliary electric gate valve exhaust passage is also installed to adjust the furnace pressure through instantaneous smoke exhaust;

4. The pressure of natural gas, combustion air, and compressed air is detected using a pressure switch, and data is transmitted through sensors, causing an alarm when exceeding the limit;

6. The burner is controlled by a dedicated PLC burner control unit, which has functions such as manual, automatic, system switching, automatic program ignition, flame monitoring, flameout protection sound and light alarm, emergency cut-off, etc;

Zhengzhou Zhongwei Environmental Protection Equipment Co., Ltd. undertakes the production, manufacturing, installation, debugging, and training "turnkey" projects of fuel oil baking machine, gas baking machine, and electric heating baking machine equipment, as well as the "technical transformation" and security engineering projects of large-scale steel enterprise baking machine automation control system.

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