Look at the recycling of construction waste into treasure
The rapid development of the city, to promote the pace of urbanization at the same time, it also brings a lot of construction waste, which is the process of development of each city inevitable problems, how to use waste turning waste into treasure, the maximum value, the project area is how to do.
Hunan construction and construction waste resources project
Hunan construction engineering application set Zhengzhou Dingsheng construction waste treatment equipment processing 200 tons of garbage per hour, in the process can realize the source of dust, to prevent harm to the residents around the body, to ensure safety in production, and effectively solve the traditional mode requires a lot of landfill, serious environmental pollution, wasted three defects. The utilization rate of construction waste after resource treatment is up to 90%, which is far higher than the average level of construction waste utilization rate of less than 5% in the present stage. 45% of them are used as the cushion of the road, which can be used for relevant municipal projects; the other 45% can be made into bricks for resource utilization.
Recycling recycled concrete in Changzhou is a treasure
Into the construction waste treatment center, the lively scene will see the construction waste was "able to perform wonders" - eyes see no dust flying, ears roar of noise, large processing equipment in the closed production area sinking silent operation. Large blocks of waste concrete and other construction wastes are absorbed by the machine inlet. First, they are broken and screened. The aggregate screened is sent to different closed storage areas according to the particle size. In the green and company product showroom, the finished products after construction waste are changed, such as various recycled aggregate, unburned brick block, permeable brick, ready mixed mortar and road inorganic binder. The first formal and systematic construction waste resource utilization project in Jiangsu was successfully put into operation at the end of 2015. The construction waste through centralized collection, removal, disposal and utilization of unified norms, eventually transformed into various kinds of recycled building materials products, comprehensive conversion rate up to 95%.
Zhengzhou high tech Zone construction waste disposal sites
In order to realize the in situ resource utilization of construction waste in high-tech zones, Zhengzhou Dingsheng group Huajie Environmental Protection Technology Co., Ltd., with the support of the high tech Zone Management Committee, has built the project of building waste recycling in Zhengzhou Bai Lu tun. The consumptive field covers an area of 200 acres, a total investment of 50 million yuan; the planning and construction of construction waste crushing production line 6, recycled concrete block production line 3, sludge and waste soil CO preparation of unburned brick production line 1, the annual processing 1 million 500 thousand cubic meters of construction waste, of which 1 million 200 thousand cubic meters to 300 thousand cubic meters for the road cushion. Brick.
Handan's diversified disposal of construction waste
In the city of Handan city construction waste management in the legal system and principles, with scientific methods and source management for the pilot, and vigorously promote the use of the construction waste resources by the government set up the stage, singing the way of private enterprises, to better protect the environment, promote the development of circular economy. After exploring practice, a new model of diversified construction waste management and resource utilization is created. The implementation of management measures, the source system, market access, vehicle closed, supervision technology, resource disposal, human services and other management measures, the demolition of construction waste crushing, screening, matching, pressing, curing process, production of environmental protection type unburned wall material, not only to make up for the domestic blank. But also opened up a broad market space for the comprehensive utilization of construction waste.
The comprehensive utilization rate of construction waste in Qingdao reaches 80%
A bulldozer pushes the sorted building rubbish into the feeder, the feeder has a filter on it, and the large pieces of stone are separated into the crusher. After building garbage treatment through the track was sent to the shaker, the track is fixed above the magnet, the garbage in the wire, screws are cleared. After entering the vibrating screen, the fine sand is sent through a track below, and the stone is sent to the caterpillar on the top floor. After washing, it can replace the fine aggregate of natural building materials, such as stones. The site of the company was once a building landfill in Qingdao. Nowadays, 3 million tons of construction waste can be disposed every year. At present, more than 10 companies in Qingdao are engaged in the comprehensive utilization of construction waste, and the comprehensive utilization rate of construction waste is 80%.
