Specific Workflow of the Sand Production Line
Raw Material Storage
Large stones are first transported to the storage warehouse, which serves as the starting point of the entire sand production process. The existence of the warehouse ensures continuity in production and prevents interruptions due to insufficient raw material supply.
Feeding Stage
The feeder plays the role of a "logistics officer" in the sand production line, evenly delivering large stones from the warehouse to the subsequent crushing equipment. Among them, the vibrating feeder is a commonly used device that can withstand the impact of large materials falling, has a high feeding capacity, and can deliver blocky and granular materials from the storage bin to the receiving device in a uniform, timed, and continuous manner. This prevents the receiving device from stalling due to uneven feeding, thereby extending the equipment's lifespan. Additionally, other types of feeding equipment are available to meet different production needs.
Primary Crushing
After being evenly fed by the feeder, the stones enter the jaw crusher for primary crushing. The jaw crusher is the mainstay of the primary crushing stage, characterized by a large crushing ratio and high efficiency, capable of initially breaking large stones into smaller pieces, preparing them for the subsequent medium and fine crushing processes.
Secondary Medium and Fine Crushing
The crushed stones are then transported by a belt conveyor to the impact crusher or cone crusher for secondary medium and fine crushing. The impact crusher is suitable for crushing medium-hard materials, producing products with uniform particle size and good shape. The cone crusher is more suitable for handling harder materials, offering advantages such as high crushing force, efficiency, and low energy consumption. These two types of crushers can be selected based on the properties of the raw materials and production requirements, further crushing the stones into smaller particles.
Tertiary Sand Making and Screening
The material after medium and fine crushing is conveyed to the impact sand making machine for tertiary sand making. The impact sand making machine throws the material out using a high-speed rotating impeller, causing it to collide and rub against surrounding materials or liners, achieving further crushing and shaping to produce manufactured sand that meets particle size requirements. Subsequently, the manufactured sand enters a vibrating screen for screening, which separates the manufactured sand into different grades. Materials that do not meet the particle size requirements are returned to the sand making machine for reprocessing, forming a closed-loop cycle to ensure uniformity and consistency in product particle size.
Sand Washing Stage
If the screened manufactured sand has strict requirements for the amount of powder, it needs to enter the sand washing machine for cleaning and impurity removal. The sand washing machine can remove impurities such as dirt and dust from the surface of the manufactured sand, improving its quality and purity, and ensuring that the manufactured sand meets the standards for construction sand.
Conveying Finished Products
The manufactured sand, after washing, is transported by a conveyor to the finished product pile, awaiting subsequent use or sale. The conveyor efficiently and stably transports the manufactured sand to the designated location, ensuring a smooth production process.