The emergency measures of concrete mixing plant

Submitted by Anne,11/06/2014
I. The emergencies caused by nature
1. A sudden rainstorm, you should immediately notify the laboratory to have a test on moisture content of sand and gravel, adjust the using water quantity of mixed ratio, so as to ensure the quality of concrete. At the same time, the principal of production department is responsible to call the consumer site, asking whether the concrete cover has been finished, and the coverage recommendations immediately. If they can't be covered or rain erosion is serious, we advised that they needed to be mixed again after rain stopped. If the rainfall is more than 50mm / h, the desired site immediately shut down until the rain become small.
2. The big wind. When the wind is larger, the principal of production department should be responsible to call the building site, and asked the concrete finished should be immediately covered with plastic film, in order to prevent the crack of concrete surface due to excessive water loss.
3. A sudden heavy snow, the production department should send the specially-assigned person to clear the heap snows, reducing the effect of water used amount for concrete. In this case, the quality of concrete can be guaranteed. At the same time, the principal of production department is responsible to call the building site, requiring the concrete having been mixed must be covered with plastic film and straw mat.
II. The emergency fault of main production equipment, emergency fault of on-site pumping equipment, blocking the pump, pipe explosion and other mechanical faults, water and power being cutting off.
1. The emergency fault of mixing plant host leads the production stop. The operator should close the chief power immediately, inform maintenance personnel immediately and report to the competent leadership. The principal of production department is responsible to calculate the repair time after confirmation of the mechanic check fault. If the repair time exceeds two hours, you should immediately notify the pump operating personnel and the principal of building site, and require the pump operator to slow the pumping speed. If necessary, the final tanker from mixing plant needs to the pump on a tube to prevent plugging, pump. If the repair time exceeds four hours, the production manager should immediately contact the other mixing plant, and let other mixing plant to produce. What's more, laboratory should do the quality inspection work of concrete very well, and the test block must remain more than four groups.
2. The field pumping equipment emergency fault leads the pump can't pump over. Truck driver shall immediately notify the production scheduling, and inform the fault reason. The production scheduling should make reasonable explanations to the principle of construction site, and immediately replace another one pump. If the mixing plant doesn't have pump, the production manager should rent a pump and send it to the building site.
3. When the pump is blocked, pipe is exploded and other mechanical faults, the operator of pump truck should notice immediately the production scheduling, and then the production scheduling should immediately stop depart and report to the production manager. The operator of pump truck should actively look for the blocking point, critical point, and he should finish it quickly with the help of the construction site personnel. What's more, he should also find the reasons for block the pump and tube explosion. The reasons are as follows: first, the mix or raw materials caused by the workability of concrete is not good, such as concrete stone side, the sand is too thick, the amount of admixture caused by too much concrete segregation. Second, pump tube connection is not tight. There is leakage or leakage phenomenon. Third, pump without regular inspection, replacement, the pipe wall to cause severe wear of tube explosion.