Spraying Machine Construction Frequently Asked Questions and Answers
2020-06-29 15:16:34
1, spray machine construction start, stop sequence?
A: Boot: air, water, power, and feed. Shutdown: stop the material, power outage, stop the water, stop the wind.
2. Spraying procedure A: 1) Check the conditions of gas, support and surrounding rock in the construction site, and treat the danger after construction. 2) Connect various circuit circuits. 3) Successful commissioning of the equipment, 4) Wash the wall of the rock lane. 5) Spices. 6) Spray, spray, spray the wall after the first arch. 7) After the completion of the construction, clean the equipment, excess materials and rebounds, and raise the wells for construction tools.
3, spray gun to pay attention to matters?
Answer: The nozzle is strictly forbidden. The sprayer must be fully protected. When the spray is sprayed, the vertical rock face of the nozzle is 0.5-1.0 meters apart.
4, when mixing materials required?
A: The ready-mixed material is used up within 2 hours. Keep 50% of the material in the hopper when feeding.
5, spraying machine noise causes and processing methods?
A: There are debris on the rotating partner or over-compression of the binding plate, the debris should be discharged loose screw method.
6. What should I do if I rebound?
A: Adjust the spray distance, angle, wind pressure, and water pressure.
7. How to request quality when spraying?
A: The quality requirements should be smooth surface, moist and smooth, good viscosity, no dry spots and slip flow phenomenon.
8. Which three lines should be hung before spraying concrete? What is the role of the three lines?
Answer: In order to ensure the quality of shotcrete and roadway specifications, three lines are hung before spraying. Two arches of arches and one centerline of vaults; the effect of the three lines is to fix the thickness of the spray layer and the size of the roadway design. The thickness of spray layer is in the line, and the lane ruler is outside the line.
9. How to spray the bumpy section of the roadway?
A: Fill and fill up first, fill in the recesses and over-excavate first, and then press the section to spray the slurry in an orderly manner.
10, sprayer should do what "four in the end"
Answer: 1) Before the shotcreting, the stone is cleared in the end. 2) Two bases are dug in the end. 3) The pave pumice in the roadway and the live urn find it. 4) The rebound is cleared in the end.
11. What should I do if the gas concentration reaches 1% and 1.5%?
Answer: If the return air flow exceeds 1%, the work must be stopped. When the work surface reaches 1%, it must stop drilling with an electric drill. When it reaches 1.5%, it must stop work, cut off the power supply, and withdraw personnel to handle it. The turbulence within 20 meters of the blasting site was banned.
12. Under what circumstances is the self-rescuer used?
Answer: 1) Gas and coal dust explosions occur; 2) Fire accidents; 3) In the case of a flood, a segregated self-rescuer should be worn on the single-headed mountain that is sealed by water.
13. How to prevent disasters and coal dust explosion accidents?
A: People on the windward side are facing the wind to retreat. On the downwind side, wear a self-rescuer or use a wet towel to cover your nose and mouth. Keep your head as low as possible and quickly escape to the fresh air zone and the ground. In the event of a shock wave or flame attack, hold your breath and face the shock wave on the floor or in the ditch.
14. How can a downhole fire accident escape the disaster and save itself?
Answer: 1) Find out where the fire is. 2) On the windward side, wear a self-rescuer or use a wet towel to cover your mouth and nose and swiftly retreat against the wind. 3) On the downwind side, wear a self-rescuer or use a wet towel to cover your mouth and nose, and quickly escape from the disaster area along the route with the least recent evacuation route.
15. What are the conditions for gas explosion? How to prevent gas accidents?
Answer: 1) Gas concentration 5-16%; 2) Detonation temperature 650-750°C; 3) Oxygen ≥12% in air; Prevent gas accumulation and ignition.
A: Boot: air, water, power, and feed. Shutdown: stop the material, power outage, stop the water, stop the wind.
2. Spraying procedure A: 1) Check the conditions of gas, support and surrounding rock in the construction site, and treat the danger after construction. 2) Connect various circuit circuits. 3) Successful commissioning of the equipment, 4) Wash the wall of the rock lane. 5) Spices. 6) Spray, spray, spray the wall after the first arch. 7) After the completion of the construction, clean the equipment, excess materials and rebounds, and raise the wells for construction tools.
3, spray gun to pay attention to matters?
Answer: The nozzle is strictly forbidden. The sprayer must be fully protected. When the spray is sprayed, the vertical rock face of the nozzle is 0.5-1.0 meters apart.
4, when mixing materials required?
A: The ready-mixed material is used up within 2 hours. Keep 50% of the material in the hopper when feeding.
5, spraying machine noise causes and processing methods?
A: There are debris on the rotating partner or over-compression of the binding plate, the debris should be discharged loose screw method.
6. What should I do if I rebound?
A: Adjust the spray distance, angle, wind pressure, and water pressure.
7. How to request quality when spraying?
A: The quality requirements should be smooth surface, moist and smooth, good viscosity, no dry spots and slip flow phenomenon.
8. Which three lines should be hung before spraying concrete? What is the role of the three lines?
Answer: In order to ensure the quality of shotcrete and roadway specifications, three lines are hung before spraying. Two arches of arches and one centerline of vaults; the effect of the three lines is to fix the thickness of the spray layer and the size of the roadway design. The thickness of spray layer is in the line, and the lane ruler is outside the line.
9. How to spray the bumpy section of the roadway?
A: Fill and fill up first, fill in the recesses and over-excavate first, and then press the section to spray the slurry in an orderly manner.
10, sprayer should do what "four in the end"
Answer: 1) Before the shotcreting, the stone is cleared in the end. 2) Two bases are dug in the end. 3) The pave pumice in the roadway and the live urn find it. 4) The rebound is cleared in the end.
11. What should I do if the gas concentration reaches 1% and 1.5%?
Answer: If the return air flow exceeds 1%, the work must be stopped. When the work surface reaches 1%, it must stop drilling with an electric drill. When it reaches 1.5%, it must stop work, cut off the power supply, and withdraw personnel to handle it. The turbulence within 20 meters of the blasting site was banned.
12. Under what circumstances is the self-rescuer used?
Answer: 1) Gas and coal dust explosions occur; 2) Fire accidents; 3) In the case of a flood, a segregated self-rescuer should be worn on the single-headed mountain that is sealed by water.
13. How to prevent disasters and coal dust explosion accidents?
A: People on the windward side are facing the wind to retreat. On the downwind side, wear a self-rescuer or use a wet towel to cover your nose and mouth. Keep your head as low as possible and quickly escape to the fresh air zone and the ground. In the event of a shock wave or flame attack, hold your breath and face the shock wave on the floor or in the ditch.
14. How can a downhole fire accident escape the disaster and save itself?
Answer: 1) Find out where the fire is. 2) On the windward side, wear a self-rescuer or use a wet towel to cover your mouth and nose and swiftly retreat against the wind. 3) On the downwind side, wear a self-rescuer or use a wet towel to cover your mouth and nose, and quickly escape from the disaster area along the route with the least recent evacuation route.
15. What are the conditions for gas explosion? How to prevent gas accidents?
Answer: 1) Gas concentration 5-16%; 2) Detonation temperature 650-750°C; 3) Oxygen ≥12% in air; Prevent gas accumulation and ignition.
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