"By 2020, the province should realize the reduction, harmlessness, resourcefulness and industrialization of construction waste, with the utilization rate of construction waste resources in provincial municipalities exceeding 70%, and the utilization rate of construction waste resources in county-level cities exceeding 50%." Chang Qingsheng of the Henan Provincial Department of Housing and Urban-Rural Development focused on the reuse of construction waste in his deployment.
Now the rapid development of urban infrastructure, demolition and relocation progress is also particularly rapid, all over the construction waste has become the government and developers of the "difficult" problem, how to turn construction waste into treasure?
Into the Xuchang City, renewable building materials production base, see is more than 10 meters high, nearly 100 meters in diameter, like a mountain of construction waste. Next to it, a 20-meter-long, 4-meter-high crawler-type movable crushing and screening machine, compared to the construction waste next to it, seems so inconspicuous. The person in charge of the base told me that we should not underestimate this machine, which is very powerful!
After the operator started the machine, with the roar of the machine, the
mobile crushing station will continuously "eat" the construction waste into the stomach. A few minutes later, with the operation of the conveyor belt, a variety of particles of different sizes from different discharge port "spit" out. Mixed in the construction waste in the steel, iron, in the strong electromagnetic force is "sucked" into the suction cup, along a small pipe from the other side of the exit "spit" out. The entire process requires only one operator to complete, crushing 500 tons of construction waste per hour. These particles are "pulverized" by the machine, and become the raw materials for road building, wall building and brick making.
The person in charge of the base said that each year the company's production line can "transform" more than 30 million tons of construction waste, the production of environmental bricks nearly 300 million, other products made from treated construction waste can reach more than 100 kinds of products. In the entire production process, neither the need to burn coal, heating, and does not produce sewage and smoke, low-carbon and environmentally friendly.
In Xuchang City, Henan Province, more than 4.5 million tons of construction waste can be processed annually, the reuse rate of resource utilization of more than 95%, construction waste has become a "baby bump".
It is understood that there are a total of 35 construction waste resource utilization enterprises in Henan Province, in 2017, the province's in situ reuse and resource disposal of construction waste more than 60 million tons, the resource rate of 50%, initially changed the construction waste disposal of sloppy management mode.
Progress varies from place to place
However, it should not be ignored that last year in Henan Province, all kinds of construction waste is still half did not get resource reuse, piled up into large and small "garbage mountain".
"Construction waste project investment density is small, poor economic efficiency." Some enterprises do not pay enough attention to the resource utilization of construction waste, subjectively not active and not active, not environmental protection as a corporate social responsibility, where the social pressure caused.
As the main manufacturing industry in the Central Plains, China mining machine brand Shanghai Dingbo Heavy Industry Machinery Co. The company has introduced the advanced technology and process from the United States, Germany, Japan, Australia and other countries, set up a professional construction waste mobile crushing plant research institute, with scientific management methods, excellence in manufacturing technology and innovative research and development concepts to win the praise of tens of thousands of users, our products are exported to more than 100 countries.
In order to carry out the concept of sustainable development and green development, Dingbo Heavy Industry has implemented the activity of "Helping Henan to Fly Green Development" to help the utilization of construction waste resources in the "backward areas" of Henan Province.
