The production plant is clean and tidy, surrounded by green trees; The recycling and utilization of solid waste and wastewater is both energy-saving and environmentally friendly; The steel structure overall packaging factory area is simple and atmospheric; 30 new energy mixer trucks achieve zero carbon transportation... On September 8th, reporters visited a concrete company in Singapore to explore how concrete mixing plants can achieve "zero emission" production.
In the factory area, dozens of large mixing and transportation vehicles come and go, but the entire space seems to have pressed the "mute button", without the vibration noise brought by the engine. From the outside, these transport vehicles are also different from traditional concrete mixer trucks, with each vehicle carrying a black "backpack" that is the same width as the body behind the driver's cab. We use all 30 new energy mixer trucks. This' big backpack 'is the vehicle's battery, "said Zhou Linwang, the person in charge of Hebei Xiong'anzhaili Concrete Company. The company will be put into use in early 2024 and is the first enterprise in the Beijing Tianjin Hebei region to fully use new energy mixer trucks.
Low noise, low energy consumption, zero emissions, light weight, controllable speed in the background, can also reduce transportation costs, and ensure sustainable supply of concrete in heavy pollution weather. Zhou Linwang listed many advantages of new energy mixer trucks in one breath.
All the mixing and transportation vehicles here are "dismantle and assemble" pure electric transportation vehicles. How to solve the charging problem? There are two intelligent battery swapping stations set up in the factory area, and drivers only need to drive their vehicles into the stations to achieve automatic battery swapping without getting off. The whole process only takes 5 minutes.
In the feeding area, a large truck loaded with stones had just entered when a row of sprinkler systems on the roof of the factory automatically started, spraying fine water mist down. Each entrance of the factory building is equipped with a sprinkler system that automatically sprays according to the frequency of opening and closing associated doors, "said Sun Mingjie, the deputy general manager of the company. The automatic sprinkler system is used to prevent dust from overflowing when vehicles enter and exit the material bin or unload materials.
When the truck enters the silo, the silo door immediately closes. Unloading is fully enclosed. At the same time as the raw materials are poured into the underground silo, the forced pulse bag dust removal system will collect and reuse the generated dust in a centralized manner. "Sun Mingjie pointed to a black device next to the unloading silo and said that all raw material transportation during the production process adopts a sealed design to ensure timely recovery of dust and prevent it from overflowing.
How powerful is the forced pulse bag filter system? Sun Mingjie said that it is like a range hood in the kitchen, which forcibly sucks up dust through the negative pressure generated by the dust removal system and collects it into another device for production and reuse. Other aggregates are transported into the corresponding material storage bin through the conveying equipment in the fully enclosed corridor.
Not far from the silo, a transport vehicle that has just finished delivering concrete "home" is carrying out tank flushing.
