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I believe that the use of dry shotcrete machine friends are aware of dry shotcrete machine to use what matters and operation, but there are some friends are not very understand, today let small make up to take you to see the specific content of dry shotcrete machine.
Pre-boot preparation
1. Check whether the connection fastening of each part of the machine is safe and reliable;
2. After inching the machine to check whether the steering is correct, run it again for 3-5 minutes to check whether all parts are normal;
3. Check the clamping force applied to the rubber sealing plate, first apply to the nut on the locking device lever until it is pressed tight. Then tighten it 2-3 times with a wrench until the rubber seal is airtight. The clamping degree of rubber sealing plate can be checked by the following methods: bending the feeding tube, opening the air valve, when the pressure is about 0.2Mpa, there is no air leakage at the rubber sealing plate.
The operation of starting a sandblasting operation
Method after the preparation work, you can want to add the mixing material in the machine. At this point, the machine operator first opens the main valve, opens the wind path fully, and then adjusts the lower air pipe (to the cyclone pressure) to about 0.09-0.1mpa no-load air pressure (depending on the delivery distance). Then sandblasting workers open the sprinkler water valve to wet the surrounding rock surface. At this point the machine operators started the machine, began to spray concrete operations. The working pressure is about 0.2-0.4mpa (depending on the water-cement ratio of the mixture). High speed cyclone pressure air (downwind valve), until the machine at the air outlet of more material leakage.
Accelerating agent with the adjustment of feed
The dosage of accelerating agent can be adjusted within the range of 3%-10% according to the construction requirements, and the adjusting valve can be fixed after appropriate adjustment.
Stop sandblasting
1. Stop the machine and blow out the remaining materials in the pipeline;
2. When the pipeline is clean and no material is ejected from the nozzle, then close the water valve at the nozzle;
3. Finally close the main duct valve. The mixing material can be kept in the hopper when the sandblasting operation is interrupted temporarily. After the sandblasting or shotcrete operation is finished for a long time, the feeding material can be stopped first, and the machine can continue to operate until the residual material in the hopper, rotor and material chamber is exhausted.
The above is for you to introduce the specific use of dry shotcrete machine operation of some content, hope through the above content, can let you have more understanding and understanding of dry shotcrete machine, also hope this article can help you.