Project Overview

Capacity: 700 tph
Construction party: Xingyang Chunling Stone Factory
Contractor: Xinxiang Dingli Mining Equipment Co., Ltd.
Construction date: May 13, 2010
Construction address: Xingyang, Henan

Background

     With the rapid development of China's highway, railway, real estate, water conservancy and other infrastructure construction, the demand for gravel aggregates surges greatly. The original natural gravel resources in terms of quantity and quality are unable to meet the needs of large-scale infrastructure projects, so it has become a general trend that fine artificial sand will replace the natural sand. At present, artificial sand production has become an ascendant industry. The market price of artificial sand is about 30-50 yuan/ton. Except the pre-site selection, equipment investment and wear parts consumption in the process of production, it basically needs no other funds. By grasping the market opportunity in the right time, Chunling Stone Plant in Xingyang, Henan introduces a large gravel production line.

Analysis

    1. Process design:the 700T/H gravel production line of Xingyang Chunling stone plant mainly adopts the combined crushing technique with two hammer crushers of Dingli. The closed-loop system formed not only increases the hourly capacity but also guarantees the crushing degree of the aggregates is within the required size range for the particles. In order to ensure the cleanliness of aggregates, the vibrating feeder with the function of soil removing is adopted in the feeding end, which is the first channel. Compared with the traditional process of combining jaw crusher with impact crusher, the process using the above equipment has the advantages of light installed capacity, convenient maintenance, less investment and quick effect, and the finished aggregate particles have good shape, high cleanliness and high strength, etc.

    2. Production & installation: it totally takes 2 months to complete the entire production line since May 13, 2011 when the contract was signed. The whole procedure includes the process design of entire production line, equipment manufacturing & installation and the final enabling of standard operating procedures.

    3. Investment return: the estimated investment of this production line is less than RMB 5 million. Now it has been put into production and operation. With annually production of 2 million ton fine gravel aggregates, it is predicated the full investment can be recovered within half year with outstanding economic efficiency.