The trolley furnace is a commonly used furnace type in the heat treatment industry, responsible for the heat treatment production process of large castings and forgings. Ensuring the normal and stable operation of the equipment is crucial, which cannot be achieved without regular maintenance and attention to operating procedures. Below, let's have a look at the maintenance and inspection guidelines, as well as the usage precautions for the trolley furnace, presented by the editor of StarDing!
　　

One: Maintenance and Repair Methods for the Trolley Furnace

1. Inspect all components

　　
During operation, the trolley furnace should be regularly checked for proper power supply, any short circuits, phase failures, or exposed wiring; ensure good contact at the grounding device's connection points; check for any contact with the furnace body; and verify the normal operation of the temperature control system. If any issues are found, they should be repaired promptly.
　　

2. Regular lubricant inspections

　　
Regular inspections of motors, reducers, and transmission shaft sleeves are required. If lubricant is found to be low, it should be replenished promptly to prevent damage due to insufficient oil.
　　

3. Regular Instrument Calibration

　　
Regular calibration of instruments and thermocouples is required to prevent incorrect temperature readings due to their errors, which could affect product quality.
　　

4. Regularly blowing off the oxide scale

　　
Regularly blast clean the scale beneath the furnace bottom plate, typically once a week. During cleaning, hoist the bottom plate and use compressed air to remove the scale particles from the resistor wire槽, to prevent the scale from causing a short circuit within the heating wire.

5. Additional Insulation Materials

　　
Approximately half a year after the car furnace is used, the top plate needs to be opened to add additional insulation material. This is because the insulation material of the new equipment will undergo varying degrees of shrinkage due to the high temperature during use, thus achieving a better insulating state.
　　

6. Inspect the furnace door

　　
Regularly inspect the lift and movement of the furnace door and trolley entry/exit to ensure normal operation, as improper entry and exit of the trolley can avoid wear or collision with the workpieces at the furnace door. Additionally, prolonged movement of the furnace door can lead to varying degrees of deformation or gaps. If a gap is found at the furnace door, it should be repaired promptly.
　　

7. Regularly inspect heating elements

　　
Regularly inspect the usage status of heating elements, as they cannot be bent or collided after short-term use. If they break without severe corrosion, welding rods made of the same material as the electric furnace wire (or the wire itself) can be used, and焊接 should be performed using acetylene gas. The welding rods are composed of 50% dolomite powder. If the heating elements are severely corroded and cannot be used, they should be replaced separately.
　　

Important Precautions for the Use of Trolley Furnace

　　
During operation, the workpiece must not come into contact with the heating element, and the distance from the heating element should be at least 100-150mm.
　　
When handling workpieces, the power supply to the heating element must be disconnected first to ensure the safety of the operator.
　　
3. Prior to use, it is essential that the operator be familiar with the structure and performance of the electric furnace and its auxiliary equipment, the layout of the power distribution system and control system, as well as the location of safety devices, and the operating procedures and safety operation guidelines.
　　
4. Workpieces containing volatile, corrosive, or explosive gases are strictly prohibited from entering the furnace for processing to avoid affecting the service life of the heating elements and refractory materials.
　　
Do not exceed the operating temperature of the trolley furnace; otherwise, it will shorten the lifespan of the equipment.
　　
If there is an excessive amount of oxide scale on the workpiece, it can be cleaned thoroughly with a wire brush before entering the furnace.
　　
7. Handle parts with care to prevent damage due to impact; rough handling is strictly prohibited.
　　
Operators are strictly prohibited from leaving their posts while operating the trolley furnace. They must always monitor the furnace's operational status to ensure stable efficiency.
　　
The above includes the full content of the maintenance and inspection guidelines, as well as usage precautions for the traveling grate furnace. From the introduction, it is clear that the maintenance methods for the traveling grate furnace involve inspecting all components, regularly checking lubrication oil, periodically calibrating instruments, regularly blowing off scale, adding insulating materials, inspecting the furnace door, and regularly checking heating elements. Usage precautions include ensuring that workpieces do not come into contact with heating elements, strictly prohibiting hazardous materials from entering the furnace, avoiding operation at excessive temperatures, and strictly prohibiting rough handling. If you encounter any issues during use or maintenance, please feel free to call or leave a message to contact Luoyang Xingding Kiln Equipment Co., Ltd. We will provide a reasonable solution based on your on-site situation.

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