Concrete batching plant in extremely cold area is a series of concrete production solutions customized by LUTON GROUP for extreme environments of -50ā – -30ā. Through the deep integration of material science, intelligent temperature control and modular design, LUTON GROUP has redefine the reliability and accuracy standards of engineering concrete production in extremely cold regions. In this way, LUTON GROUP has helped the customers conquer extreme environments.
Double-circlation aggregate preheating technology ensures even concrete mixing in extreme cold environment
Special ultra-low-temperature alloy steel combining with electric heating compensation structure effectively prevent freezing.
stable in an working environment of -50ā – -30ā, with a discharge temperature ā„10ā to ensure the quality of concrete.
Modular design supports rapid dissassembly and assembly to meet the needs of temporary projects in extremely cold regions.
| Product Model | HZS120EC Concrete Batching Plant | Applicable Scenarios | High-cold Railway/Highway project, Large Infrastructrue Projects in Extremely Cold Areas, Extremely Cold Mining Area… |
| Capacity | 120m3/h | Feeding Mode | Belt Conveyor |
| Hoisting System | Motor: 37kW 4 Pole Belt: B=1000 speed 2.0m/s | Mixer Model | JS2000 Twin Shaft Concrete Mixer |
| Screw Conveyor | Specs: Š¤273 Capacity:65t/h Motor power:15kW | Weighing Accuracy | Aggregate: Ā±2% Cement: Ā±1% Water:Ā±1% Additive: Ā±1% |
| Pneumatic System | Air compressor: V-2.0/10 Air storage tank: 0.6m3 Solenoid valve: 4V310-10 2W-040 | Powder Silo | 200T |
Technical Highlights
“Double-circlation aggregate preheating technology” solves the problem of uneven heating of aggregated in traditional concrete batching plants in extremely cold areas.
Special ultra-low-temperature alloy steel combining with electric heating compensation structure effectively prevent freezing and eliminate the risk of brittle cracking of the main mixing machine in cold environment.
Concrete Batching Plant Designed For Extreme Cold Weather
Fully Enclosed Insulation System
- Box-type Insulation Workshop
The outer shell adopts double-layer color steel sandwich panel (100mm polyurethane insulation layer), and the internal configuration is a hot air curtain to isolate the cold air and maintain the temperature in the warehouse ā„ 5ā.
- Anti-freeze Foundation
The equipment foundation is 2m below the frozen soil layer, and an XPS extruded board insulation layer is laid to prevent the frozen soil from thawing and causing tilting.
- Mainframe Structure
Double-layer hollow glass windows are used, the thickness of the wall insulation layer is ā„50cm, and a heater or hot water circulation system is installed indoors t ensure that the room temperature is not lower than 15ā.
- Strong Silo
Three layers of ” electric mattress + insulation cotton + woven cloth” are used to prevent aggregate freezing.
The cement silo is equipped with a dual system of eletric heating + nitrogen drying, with humidity ā¤5% to prevent material compaction and blockage.
- Additive Tank
Move inddors, wrap it with an electric blanket and add colored cloth strips, and place a coal briquette stove around it to increase the temperature.
Heating And Mixing System
A boiler room and a warm shed are configured to preheat sand, gravel and water, and the water temperatue is controlled below 60ā (to avoid false setting of cement).
A double-screw machine structure is used to synchronously transport cement and admixtures to improve the utilization rate of the machine.
Control System
Preference is given to plateau-type single-chip control systems, which are modularly designed for easy expansion and have higher stability than PCs. One-touch activation of extreme cold mode automatically adjusts heating power, aggregate ratio and water temperature, synchronizes data to the cloud, and enables remote APP monitoring.
Drive System
Avoid fuel-driven equipment (severe power attenuation at low temperatures), and give priority to electric or pneumatic equipment.
Material Selection And Optimization
Cement – Use silicate cement or ordinary silicate cement (strength ā„42.5ļ¼to increase hydration heat and early strength.
Aggregate – Use dry, unfrozen sand and gravel (water content ā¤ 4%), avoid ice or frozen shells, and stack height ā„ 5m to reduce the frozen layer.
Admixture – Choose a composite admixture with early strength, antifreeze, and water reduction functions, and strictly control the chloride ion content (to prevent steel corrosion).
Mixng water – Heat to about 60ā (not exceeding 80ā), mix with aggregate first, and then add cement to avoid cement sudden setting.
Process And Insulation Measures Of Concrete Batching Plant In Extremely Cold Area
Preparation Before Start
Preheating procedure: Start the hot air curtain and aggregae bin heating in the plant 4 hours in advance to ensure that the ambient temperature meets the standard.
Equipment Lubrication Check: Use -45ā low-temperature lubricating oil, and manually turn the wheel to confirm that there is no jamming.
Extend the mixing time by 50% to ensure uniform mixing. The order of feeding is ” sand and gravel ā hot water ā cement ā admixture.
During production, temperature monitoring records the temperatrue of aggregate, water and concrete out of the machine every 30 minutes, and adjust immediately if the deviation exceeds Ā±2ā.
Dynamically adjust the dosage according to the ambient temperature ( for example: 3%-5% at -20ā) to avoid cracking caused by excessive dosage.
Transportation And Insulation
Wrap the tank of the transport vehilcle with hot canvas to reduce heat loss and ensure that the temperature entering the mold is ā„ 5ā.
Pouring And Maintenance
Remove snow from the template, use comprehensive heat storage method for maintenance, and monitor the temperature difference between the inside and outside of the cocnrete ā¤ 25ā.
Empty the pipe: Immediately drain the water pump and water pipe afeter production, and start the compressed air purge mode.
The temperature in the plant should be kept ā„0ā for long-term shutdown to prevent ice from forming inside the equipment.
Mixing Process
Extend the mixing time by 50% to ensure uniform mixing. The order of feeding is ” sand and gravel ā hot water ā cement ā admixture.
During production, temperature monitoring records the temperatrue of aggregate, water and concrete out of the machine every 30 minutes, and adjust immediately if the deviation exceeds Ā±2ā.
Dynamically adjust the dosage according to the ambient temperature ( for example: 3%-5% at -20ā) to avoid cracking caused by excessive dosage.
Transportation And Insulation
Wrap the tank of the transport vehilcle with hot canvas to reduce heat loss and ensure that the temperature entering the mold is ā„ 5ā.
Pouring And Maintenance
Remove snow from the template, use comprehensive heat storage method for maintenance, and monitor the temperature difference between the inside and outside of the cocnrete ā¤ 25ā.
Empty the pipe: Immediately drain the water pump and water pipe afeter production, and start the compressed air purge mode.
The temperature in the plant should be kept ā„0ā for long-term shutdown to prevent ice from forming inside the equipment.
In short, in extremely cold environments, multiple solutions of “equipment insulation + material antifreeze + process optimization + maintenance enhancement” should be taken to ensure that the concrete quality and temperature. The key measures include fully enclosed insulation, raw material preheating, precise control and monitoring, as well as emergency insulation plans. At the same time, the status of equipment and raw materials must be regularly tested to avoid quality accidents caused by low temperatures.
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