The approaches to ball mill anchor bolts deviation
In the construction process, it is likely to make ball mill anchor bolts and the foundation drawings do not match, so that causes the anchor bolts and foundation deviation, this deviation is a normal phenomenon, this phenomenon in ball mill industry is termed for anchor bolts accident; do not worry about this situation, combining the following three statements you can solve the problem.
A, Approach to ball mill anchor bolts elevation deviation
If the anchor bolts elevation is too high, you can cut (pounds) a part and rework a thread by screw tap. If the elevation is too low (the deviation is less than 15 mm). The general approach is using oxyacetylene flame to lengthen bolt; having been elongated, both sides of the narrow part should be welded on two reinforced or size suitable steel arm welding (reinforcing). If the anchor bolts elevation is very low, the deviation is greater than 15 mm, we can only cut the anchor bolts, and weld a new system screw cypress, welding four the reinforcing steel bar to strengthen it. After disposal, supplement concrete.
B, Ball mill anchor bolts live pulling
When screw anchor bolts nuts, anchor bolts may be out of the reserved hole of the secondary watering because of shock, vibration, and other reasons caused by overexertion, beating wrench with a hammer, or poor installation, the phenomenon is known as “living pulling. The handling way is that chisel away the coagulation at the waist of anchor bolts, weld two U-shaped steel screw, and then fill and pour the concrete, so that you can re-fix live pulling snails seized foot firmly.
C, Ball mill anchor bolts center distance deviation handling
When anchor bolts center distance deviation exceeds the allowable value largely, it is available to chisel away the concrete around and heat bolt bolts to light cherry red (about 850 ° C). When anchor bolt center distance deviation handling is completed, please supplement the concrete.
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