Common faults of continuous feeding and discharging tube furnace

Continuous feeding and discharging tube furnaces may encounter various common faults during long-term use. Here are some common types of faults and their possible causes:
1. Power and circuit faults
The indicator light is not on:
Possible reasons: power plug not plugged in properly, blown fuse, control circuit malfunction, etc.
Solution: Check if the power plug is securely inserted into the socket, replace the blown fuse, and inspect and repair the control circuit.
The power supply is normal but the furnace body is not heating up:
Possible reasons: damaged heating element, control circuit malfunction, temperature sensor malfunction, etc.
Solution: Check if the heating element is intact, repair or replace damaged heating elements; Check whether the control circuit is unobstructed and repair the fault point; Check if the temperature sensor is accurate and calibrate or replace it if necessary.
2. Temperature control malfunction
Abnormal temperature display:
Possible reasons: temperature sensor malfunction, temperature controller malfunction, display screen malfunction, etc.
Solution: Check if the temperature sensor is damaged or loose, reconnect or replace the sensor; Check if the temperature controller is set correctly and reset or replace it if necessary; Check if the display screen is damaged and replace it if necessary.
The temperature cannot reach the expected value:
Possible reasons: set temperature too low, insufficient heating element power, poor furnace insulation performance, etc.
Solution: Adjust the set temperature to the desired value; Check if the power of the heating element meets the requirements, and replace high-power elements if necessary; Check if the furnace insulation material is intact, and repair or replace it promptly if it is damaged.
3、 Mechanical malfunction
Rotating mechanism malfunction:
Possible reasons: motor malfunction, worn transmission components, loose or broken belts, etc.
Solution: Check if the motor is running normally, and repair or replace it promptly if there is a malfunction; Check if the transmission components are severely worn and replace them if necessary; Check if the belt is loose or broken, adjust or replace the belt.
The furnace door is not tightly sealed:
Possible reasons: aging of furnace door sealing strip, deformation of furnace door, etc.
Solution: Replace the aging sealing strip; Adjust or replace the deformed furnace door to ensure good sealing.
4. Gas system malfunction
Insufficient or unstable gas flow:
Possible reasons: gas pipeline blockage, insufficient gas pressure, flow meter malfunction, etc.
Solution: Check if the gas pipeline is unobstructed and clean any blockages; Check if the gas pressure meets the requirements and adjust the gas pressure; Check the accuracy of the flow meter and calibrate or replace it if necessary.
Gas leakage:
Possible reasons: Loose gas pipeline connections, damaged seals, etc.
Solution: Check if the gas pipeline connection is tight, and tighten it promptly if it is loose; Check if the seals are intact and replace them promptly if they are damaged.
5. Other faults
Abnormal control system:
Possible reasons: Control system software malfunction, hardware malfunction, etc.
Solution: Restart the control system and attempt to recover; If it cannot be resolved, contact the manufacturer or professional maintenance personnel for inspection.
Security protection system triggered:
Possible reasons: high temperature and abnormal pressure inside the furnace.
Solution: Follow the prompts of the security protection system to take corresponding measures, such as reducing the temperature inside the furnace, adjusting the pressure, etc. Simultaneously check and repair the cause of triggering the security protection system.
In practical operation, fault diagnosis and troubleshooting should be carried out according to the specific equipment model, specifications, and user manual. If encountering complex or difficult to solve problems, timely contact the manufacturer or professional maintenance personnel for handling.