How to use tube furnace in a safe way

Safety
1.Gas safety: If a gas-fired tubular furnace is used, ensure that there is no leakage in the gas pipeline. Before starting, use professional instruments to detect gas leaks, or apply soapy water to the pipe interface to observe whether bubbles are generated. During use, if you smell a gas odor, you should immediately close the gas valve, stop heating, ventilate, and ignite or use electrical equipment. It is strictly forbidden to continue using it after finding out the cause and troubleshooting.

2.High temperature protection: The tubular furnace will generate high temperature when working. Operators must wear protective equipment such as high temperature resistant gloves and protective glasses to avoid direct skin contact with high temperature parts to prevent burns. At the same time, obvious high temperature warning signs should be set around the tubular furnace to remind others to pay attention to safety.
Electrical safety: Electric heating tubular furnaces must ensure good grounding to prevent electric shock accidents. Before use, check whether the power cord is damaged or aged, and whether the plug and socket are in good contact. If an electrical fault is found, it must be repaired by a professional electrician. Non-professionals are strictly prohibited from disassembling and repairing it privately.

Three -Temperature Zone Rotary Tube Temperature(Click the picture to view the details)

Operation
1.Heating and cooling rate: strictly control the heating and cooling rate according to the operating instructions of the tube furnace. Too fast heating or cooling may cause excessive thermal stress in the furnace tube, causing the furnace tube to rupture or shorten its service life. Generally speaking, the heating rate should not exceed 10℃/min, and the temperature should be cooled naturally or according to the prescribed cooling curve.
Sample placement: When placing the sample, ensure that the sample is evenly distributed in the furnace tube to avoid local overheating or overcooling. For volatile, flammable, and explosive samples, appropriate treatment or special protective measures should be taken, and heating should be carried out under well-ventilated conditions. At the same time, the sample cannot be in direct contact with the inner wall of the furnace tube to avoid contaminating the furnace tube or affecting the heating effect.

2.Flow control: If the tube furnace involves gas flow control, such as the introduction of protective gas or reaction gas, the gas flow rate must be accurately adjusted and controlled. Excessive flow may cause excessive pressure in the furnace or even rush out of the furnace tube; too small flow may not achieve the expected protection or reaction effect. Use precise metering equipment such as mass flow meters, and set and monitor according to process requirements.

Pilot Continuous Rotaty Tube Furnace(Click the picture to view the details)
Maintenance
1.Regular cleaning: Regularly clean the dust, impurities and carbon deposits on the furnace, furnace tubes and heating element surfaces of the tube furnace. Carbon deposits will affect the heating efficiency and reduce the service life of the heating elements. You can use special cleaning agents or tools for cleaning, but be careful to avoid damaging the heating elements and furnace tubes.
Component inspection: Regularly check the aging of the heating elements. If the heating elements are found to be broken, deformed, aged and discolored, they should be replaced in time. At the same time, check the accuracy of the temperature sensor and calibrate it regularly to ensure the accuracy of temperature control.

2Seal inspection: Check the sealing of the furnace door, furnace tube interface and other parts. If there is a leak, the seal should be repaired or replaced in time. Poor sealing will cause heat loss, affect the heating effect, and may also allow outside air to enter the furnace, which will have an adverse effect on the sample.
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