Common faults and solutions of laboratory rotary furnaces

During long-term use, laboratory rotary furnaces may encounter some common malfunctions. Here are some common faults and their solutions:
1. Unable to start normally
Fault phenomenon: After connecting the power supply, the rotary furnace has no response and cannot be started.
Possible reasons:
The power plug is not properly plugged in or the power cord is damaged.
The power switch is not turned on or damaged.
The fuse is blown.
resolvent:
Check if the power plug is securely plugged into the socket and if the power cord is intact.
Check if the power switch is turned on, and if necessary, replace the damaged switch.
Check and replace the blown fuse.
2. Temperature control malfunction
Fault phenomenon: After setting the temperature, the temperature inside the furnace cannot reach the expected value or the temperature fluctuates greatly.
Possible reasons:
The temperature gauge is disturbed or damaged.
The thermocouple signal is interfered with or the thermocouple is damaged.
Control system malfunction.
resolvent:
Check and eliminate the interference source of the temperature instrument, or replace the damaged instrument.
Check if the thermocouple signal line is interfered with, and if necessary, add shielding; Check if the thermocouple is in good contact. If it is loose or damaged, tighten or replace it.
Check and repair the control system to ensure its proper functioning.
3. Abnormal transmission system
Fault phenomenon: During the operation of the rotary furnace, the transmission system produces abnormal noise, vibration, or stops running.
Possible reasons:
The transmission components are severely worn.
Poor lubrication.
Motor malfunction.
resolvent:
Check the wear of transmission components (such as bearings, gears, etc.) and replace them if necessary.
Ensure that the transmission system is well lubricated and regularly add or replace lubricating grease.
Check if the motor is damaged, and if necessary, repair or replace it.
4. Abnormal atmosphere inside the furnace
Fault phenomenon: The atmosphere inside the furnace does not meet the experimental requirements, such as high or low oxygen content.
Possible reasons:
Atmosphere control system malfunction.
Poor sealing performance.
resolvent:
Check and repair the atmosphere control system to ensure its proper functioning.
Check the sealing performance of the furnace body and repair any leaks.
5. Furnace body damage
Fault phenomenon: Cracks, deformation or damage occur in the furnace body.
Possible reasons:
Improper use at high temperatures.
Quality issues with furnace materials.
resolvent:
Strictly follow the operating procedures to use the rotary furnace and avoid prolonged high-temperature use or rapid temperature changes.
If there are quality issues with the furnace material, contact the manufacturer promptly for replacement or repair.
6. Other common faults
①. Gas leakage:
Phenomenon: There is air leakage at the gas valve or pipeline.
Solution: Use soapy water to check for leaks, promptly close the gas valve, and contact professional personnel for repairs.
②. Cooling system malfunction:
Phenomenon: Insufficient cooling water flow or high temperature.
Solution: Check if the cooling water system is blocked or leaking, adjust the cooling water flow and temperature to the appropriate range.
In summary, common faults in laboratory rotary furnaces involve multiple aspects such as power supply, temperature control, transmission system, furnace atmosphere, furnace body damage, and gas and cooling systems. When a malfunction occurs, it should be investigated and repaired according to the specific phenomenon to ensure the normal operation of the rotary furnace and the accuracy of experimental results. Meanwhile, regular maintenance and upkeep are also important measures to prevent malfunctions from occurring.