A production line for crushing and processing limestone into crushed stone and aggregates with a capacity of 2000 tons per hour.

In the face of growing demand for sand and gravel, traditional small-scale, low-productivity, and highly polluting production models can no longer meet market needs. Large-scale, highly efficient, and environmentally friendly production lines have become the new trend in the industry. Below, we will examine an example of a sand and gravel production line with a capacity of up to 2000 t/h to see how it ensures both efficient production and environmental protection.

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Project Background

This production line mainly uses associated minerals obtained during limestone mining for cement production as raw materials. Through advanced production processes and technologies, objectives such as dirt removal, dust removal, multi-stage crushing and screening, aggregate shaping, and simultaneous production of sand and gravel are achieved. Environmentally friendly technologies such as powder recycling, storage, and utilization are also employed to ensure an environmentally sound production process.

Solution Selection

Faced with the challenge of crushing soft rocks such as limestone, the project team conducted in-depth research and on-site inspections, ultimately choosing a solution using a jaw crusher + impact crusher. Although this solution has a slightly higher investment cost, it effectively avoids the problems associated with a high crushing ratio, excessive amount of fine fractions, and low productivity characteristic of solutions using hammer crushers, and also reduces the higher energy consumption and operating costs for wear parts characteristic of a solution using an impact crusher + impact crusher.

Technological process

The production line uses a complete technological process, including eight main stages: a jaw crusher system for construction aggregate and artificial sand, sludge removal, screening and transportation, an impact crusher system for fine crushing of construction aggregate and artificial sand, a primary screening system, a secondary screening system, a vertical shaft impact crusher system for artificial sand, a powder selection and transportation system, and a storage and loading system.

Each stage is equipped with modern equipment and technologies to ensure the continuity and efficiency of the production process. At the same time, thanks to the rational design of the technological process, maximum utilization of raw materials and diversified product output are achieved.

Environmental protection measures

During the production process, this production line pays special attention to the implementation of environmental protection measures. Thanks to technologies such as sludge removal and dust removal, dust pollution during the production process is effectively reduced. Environmentally friendly technologies such as powder recovery, storage and utilization are also used to achieve waste recycling and reduce emissions. After testing under real operating conditions, this production line demonstrated excellent performance and stable operation. It not only achieved the goals of high-volume and high-efficiency production but also met environmental safety requirements. The product quality is stable and reliable, and it is in high demand in the market. Conclusion

This study of a 2000 t/h artificial sand and gravel production line fully demonstrates the development trends and advantages of large-scale, high-efficiency, and environmentally friendly production lines. Through the implementation of advanced production processes and environmental protection measures, a win-win situation has been achieved from both an economic and environmental perspective.