MAT1 (6) - Produção de Brita

Summary

In this video, the team at Cross Mining takes us through the detailed process of limestone extraction and processing. The journey starts with detonations in the mine to break the limestone, followed by drilling and primary crushing. The material is then sorted into various sizes through a series of crushers and screens, including secondary and tertiary stages, ensuring the right granularity. The process is closely monitored in the control room. This insightful overview highlights each critical step from extraction to final material classification, offering a comprehensive look into mining operations.

Takeaways

• 😀 The video explains the process of limestone mining and production, from extraction to the final product.
• 😀 The process starts with blasting to extract limestone from the mine.
• 😀 After extraction, the limestone undergoes crushing and is processed through multiple stages of grinding and sorting.
• 😀 The primary crusher reduces the material's size to a maximum of 5 inches.
• 😀 The secondary crusher further reduces the material, ensuring proper size for sorting.
• 😀 A sorting process occurs using sieves, which categorize the material into different sizes.
• 😀 Material that exceeds the 25mm size is sent to the secondary crusher for further reduction.
• 😀 The tertiary crusher is used to reduce material size further to 10-19mm.
• 😀 The sorting process also includes the removal of dust, resulting in different types of gravel, such as Brita 0 and Brita 2.
• 😀 The entire process is controlled from a control room, ensuring the operation runs smoothly and efficiently.

Q & A

What is the primary material being extracted in this mining process?

The primary material being extracted is limestone, which is processed for various uses, including producing crushed stone (brita).

What role does the detonation process play in mining?

The detonation process breaks the limestone into smaller, manageable pieces for further processing. It is the initial step in the extraction of the material from the mine.

How is the limestone material processed after detonation?

After detonation, the material is sent to the primary crusher to reduce its size. It is then transferred to secondary and tertiary crushers for further crushing, followed by screening to separate different particle sizes.

What types of crushers are used in the process?

The process uses a primary crusher, a secondary crusher, and a tertiary crusher to progressively reduce the size of the limestone material.

What happens if the material is still too large after passing through the primary and secondary crushers?

If the material is still too large after the primary and secondary crushers, it is sent back for further crushing in the tertiary crusher to ensure that it meets the required size specifications.

What are the different grades of material produced in the mining process?

The material is separated into various grades, including crushed limestone, sand, and gravel, with specific sizes such as brita 0, 31, and other graded materials depending on the crushing and screening stages.

How does the screening process work in the mining operation?

The screening process involves using screens to separate the material based on size. Larger particles are sent back for further crushing, while smaller particles, such as brita 0 and sand, are sorted and processed accordingly.

What is the role of the central control room in the mining process?

The central control room is responsible for managing the operation of all machinery and equipment, ensuring that the mining process runs smoothly and efficiently.

Who are the key people mentioned in the mining process video?

The key people mentioned in the video are Gilmar, the general supervisor, and Guilherme from the office, who are involved in overseeing and managing the mining operations.

What is the purpose of the tertiary crusher in the mining process?

The tertiary crusher is used to further reduce the size of the material, especially if the material is too large after passing through the primary and secondary crushers. It ensures that the material meets specific size requirements before being sent to screening.