The electric spindle of the rotary flash dryer may malfunction due to various reasons during use. If it cannot be repaired in time, it will affect normal production. Therefore, it is very important to know how to properly repair the spindle to achieve the desired effect.
1. Cleanup and preparation.
First of all, it is necessary to clean the maintenance surface and datum surface to be repaired, and remove foreign substances such as oil stains and iron filings with alcohol or other organic solvents to ensure the natural color of the equipment material and ensure the adhesion to the molecular level of the repair material.
Second, apply composite materials.
The composite material Fushiblue 2211F is then formulated and applied to the wear section to be repaired. When applying, it should be uniform and dense, with no visible pores. After application, the diameter of the small area should be about 4mm larger than the standard diameter.
3. Installation of molds and curing.
Immediately after applying the material, install the fastening mold. The remaining material is extruded from the discharge port, and after curing, the mold is opened and repaired.
Fourth, the repair is completed and installed.
After the repair is complete, the coated composite with wear points is naturally cured for 24 hours (bake heating reduces the curing time) and subsequent accessories such as bearings and sprockets can be installed. The overhaul is completed, and the test run is put into feeding.
Fifth, pay attention to the process method of shaft installation.
During the installation process, the axial oscillation of the bearing should be controlled to avoid damage to the positioning point. At the same time, a dense filling is formed between the inner ring of the bearing and the repaired bearing position during the installation process, and it is ensured that excess material is extruded.
6. Inspection before disassembly.
Before disassembling the bearings of the rotary flash dryer, the wear state of the shaft end should be checked, and the wear relationship between the axial and radial directions should be measured in detail. Use a feeler gauge and other measuring tools to carefully measure the wear position, and determine the repair plan according to the wear situation.
Summary: The repair of the spindle of the rotary flash dryer requires meticulous process skills and rigorous operation procedures. Through reasonable repair methods, the service life of the spindle can be prolonged, and the stability and production efficiency of the equipment can be improved. At the same time, regular maintenance and maintenance are also the key to ensure the normal operation of the equipment.