Zhejiang is like a flowing green landscape scroll. The natural pattern of "seven mountains, one water and two fields" outlines a unique ecological texture. This beautiful place not only breeds poetic landscapes, but also contains rich mineral resources. In Zhejiang, a hot land of development, a high-quality sand and gravel aggregate production base with an annual output of 7 million tons is providing solid support for the construction of the Yangtze River Delta urban agglomeration with strong momentum.

Click to consult to learn about the construction plan of the sand and gravel aggregate production line

In 2021, Zhejiang Transportation Investment Group successfully won the mining rights of the building stone mine for the comprehensive development and utilization project of the mine, and invested 200 million yuan to help this century-old mine with a diameter of more than 800 meters and a depth of 80 meters to transform gorgeously.

Project Overview

Project scale: 7 million tons/year

Project output: 1,500 tons/hour

Processing materials: tuff, fine porphyry

Finished product size: 0-5mm fine machine-made sand

5-10-20mm fine crushed stone

7-13-25mm crushed stone

Equipment configuration: F5X vibrating feeder

HPT multi-cylinder hydraulic cone crusher

VSI6X sand making machine

S5X vibrating screen

Processing technology: wet method

Finished product use: highway and road construction

Shibang Group and Zhejiang Transportation Investment Group have worked together four times to create a number of limestone, basalt and tuff fine aggregate processing projects. The tuff fine aggregate project with an annual output of 7 million tons is a recent shining work.

The project has two sand and gravel aggregate production lines, using the "three-stage crushing, two-stage water washing and screening, and one-stage shaping sand making" process to produce finished high-quality sand and gravel aggregates and fine crushed stones of different specifications, meeting the construction needs of buildings, bridges, railways and other projects.

In the context of the "dual carbon" goal, this 7 million tons of tuff fine aggregate project has shown a model significance for the transformation and upgrading of traditional industries.

Through the organic combination of green mining and intelligent production, the project not only achieved a win-win situation in economic and environmental benefits, but also explored a new path for sustainable development in the industry.

Green gene: full-chain environmental protection

Since the beginning of planning, Shibang Group has deeply embedded the concept of environmental protection in every link of process design. The project is strictly constructed in accordance with the "Green Mine Construction Specifications for Sand and Gravel Industry", making it a truly green ecological mining area.

Among them, the fully enclosed plant design is a highlight of the project, which effectively isolates dust and noise pollution during the production process. In addition, the wet production process not only reduces the powder and mud content of the finished aggregate, but also improves the cleanliness and stability of the product quality.

From raw material mining to aggregate processing, this is no longer a dusty traditional production scene, but a fusion and symbiosis of the original ecological mining area, natural environment and cultural landscape.

Smart brain: technology empowers efficient production

If green is the background color of the project, then intelligence is its "strongest brain".

The project adopts an advanced DCS distributed control system, which can clearly display the process, status, equipment operation status and various production data of the entire production line. Through the monitoring cameras throughout the production line, technicians can achieve real-time monitoring of the entire process without dead ends in the central control room.

What's more amazing is that this intelligent system realizes the integrated operation of mine production scheduling, safety and environmental protection management and emergency command, so that the production line can run smoothly under the "unmanned" and "less-manned" state. This not only greatly saves labor costs, but also significantly improves production efficiency, and truly realizes technology empowerment and innovative development.