How to Maintain Concrete Mixing Plants in Different Weather Conditions?
In the construction industry, concrete is an indispensable material that is widely used in the construction of buildings and infrastructure. However, weather conditions have a significant impact on the operation and production process of concrete mixing plants. Whether it is a hot summer, a cold winter, or a changeable seasonal transition, changes in weather can pose challenges for concrete batching plants.
Do I need to shut down my concrete batching plant during rainy days?
There are three main reasons why a concrete batching plant needs to be shut down during rainy weather. First, rain increases the moisture content of the sand and gravel, causing it to adhere to the storage bins, which affects the flow of material, prolongs batching time and reduces the accuracy of the batching machine. Secondly, rainwater also affects fly ash and cement, which may cause cement to adhere to the silo walls. Finally, rain can also affect the accuracy of water metering and the accuracy of admixtures.
Concrete mixing plant belt machine rain slippage handling techniques?
1, Add the belt tensioning equipment counterweight or dispatch the tape tensioning screw, add the positive pressure between the tape and the roller, and then add the friction between the drive roller and the belt.
2, Adjust the tensioning roller adjacent to the drive roller, increase the tape in the drive roller wrapping angle, to add the friction between the drive roller and the tape.
3, Cut straight groove in the transmission roller cover layer, increase the friction coefficient of the transmission roller to add friction between the transmission roller and the tape.
4, Such as the first 3 methods can not be solved, it is necessary to replace the anti-skid roller.
How to do the maintenance of concrete mixing plant in hot weather in summer?
1, As the hot and humid weather is easy to trigger rust, regularly check the concrete mixer's suction pipe, casing around and internal levers and other parts, and paint anti-rust paint in time.
2, Ensure the good heat dissipation of concrete mixer, especially the heat dissipation of mixing tank and reducer. Place the mixer in a well-ventilated area, avoid excessive exposure to the sun and arrange the working time reasonably.
3, High temperature in summer may easily lead to slack belt or loose bolts, regularly check and adjust the belt tension of the mixer and the tightness of the bolts.
4, Pay attention to protect the concrete mixer from the erosion of rain, especially the wire and plug parts. For safety reasons, cut off the power of the mixer in time when not in use.
5, Due to the rapid evaporation of water in summer, immediately after work to clean the concrete mixer barrel of concrete, you can use the stone slurry mixed with water in the mixing barrel rolling 10-15 minutes, and then thoroughly cleaned. This can avoid concrete solidification in the barrel, affecting the performance and life of the mixer. In this process be sure to cut off the power supply to prevent leakage.
6, Regularly check the lubrication of the mixer shaft, it is recommended to grease lubrication once a week to ensure the smooth operation of the shaft.
What do I need to pay attention to when mixing concrete in winter?
When mixing concrete in winter, there are usually some regulations that need to be followed to ensure the quality and performance of the concrete. The following are some common regulations:
1, Before mixing concrete, thermal calculations should be performed to determine the maximum temperature at which the water and aggregates need to be preheated. This can be calculated on a case-by-case basis and for the materials to be used. In addition, a test mix is required to determine the appropriate temperature for the concrete mix ratio through experimentation.
2, Preference should be given to the use of heated water to adjust the temperature of the mixture. However, the temperature of heated water should not exceed 80°C to prevent adverse effects on the concrete properties. If the heated water still cannot meet the requirements, the aggregate can also be uniformly heated, but the heating temperature should not exceed 60 ℃. This can increase the temperature of concrete and promote the process of condensation and hardening.
3, Cement, external agents and mineral materials shall not be heated directly, they should be transported into the warming shed for natural preheating before use. This will avoid the negative effect of excessive temperature on the performance of these materials.
4, When mixing concrete in winter, the aggregates shall not be mixed with ice, snow and other substances that freeze into lumps, nor shall they be mixed with minerals that are susceptible to freezing and cracking. This is to avoid the problem of uneven shrinkage and cracking in the process of concrete setting and hardening.
How to maintain the concrete mixing plant for a long time?
1. The conveyor and dust collector of concrete mixing plant should be cleaned up, checked and protected, and issued to a dry place.
2. The batching bin of the concrete mixing plant should be cleaned up and kept dry and tidy; the concrete mixing plant should be placed in the open air to prevent the erosion of rain and snow.
3. The double-shaft forced mixer of the concrete mixing plant should be cleaned up, and the bearings should be lubricated if they need to be lubricated;
4. The materials in the material storage system should be specially classified and packed, and in winter, attention should be paid to the anti-freezing measures.
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