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First, the maintenance of the rubber film of the spraying machine The rubber board of the spraying machine is not allowed to cause excessive stress due to excessive clamping, otherwise it will cause excessive wear due to frictional heating. The heat resistance limit of the rubber plate is 1100C, generally It is normal to use no more than 800C. Each shift should clean the rubber plate and check for wear. If the rubber plate has been worn to such an extent that the steel inserts are flush with the surface of the rubber or there are gas leaks in the excess air holes and feed holes, the rubber plate must be replaced.
Second, the maintenance of the shotcreting machine steel liner Shotcrete steel liner must be checked once a week, if there is a deep scribe scratches should be re-grinding. The edge of the round hole of the steel liner should be inspected frequently. It must maintain a sharp edge. If the edge is beveled, the fine particles can easily penetrate into the joint surface and increase the wear. If a new steel liner is replaced and the old steel liner blank has beveled edges, the service life of the new steel liner will be significantly shortened. Timely repair of steel liners to remove worn parts can save a lot of trouble and save money.
Third, the mortar chamber cavity and elbow maintenance Every shift is completed, should be promptly cleaned shotgun cavity and discharge elbow.
Fourth, the maintenance of the shotcrete reducer 1. The lubricant of the shotcrete reducer is 50# industrial gear oil or 30# mechanical oil.
2. The temperature rise of the reducer shall not exceed 40 degrees.
3. Clean up the admixture of the reducer surface after each shift.
4. Observe the oil standard frequently and fill it in time when the lubricant is insufficient.
5. After three months of accumulative work, the lubricant should be replaced again.
6, always check the reducer for oil leakage, timely treatment of leakage.
7. Fill the bearings of the rotor square shaft weekly with lubricating oil.
How to maintain concrete sprayer?
Shotcreting machines are widely used in harsh construction environments such as mines, tunnels, and construction sites. To ensure that a shotcreting machine can adapt to such a harsh environment and to reduce maintenance, daily maintenance of the shotcreting machine is of utmost importance. How to maintain the spray gun? Where do we need our attention?