how to are portable crushers fed stone？

Portable crushers, also known as mobile crushers, are used in various industries to crush stones and other materials. These crushers are designed to be easily transported and set up at different locations, making them highly versatile and efficient for on-site crushing operations. Here's a detailed explanation of how portable crushers are fed stone:

1. Loading Equipment

Portable crushers are typically fed stone using various types of loading equipment. The most common types of loading equipment include:

• Excavators: These are heavy construction equipment consisting of a boom, dipper (or stick), bucket, and cab on a rotating platform. Excavators are used to scoop up large amounts of stone and load them into the crusher.
• Wheel Loaders: These are versatile machines used for loading materials into trucks, crushers, or other equipment. They have a large front-mounted bucket that can scoop up and transport stone to the crusher.
• Dump Trucks: These trucks transport large quantities of stone from the quarry or mining site to the crusher. The stone is then dumped into the crusher's hopper.

2. Hopper

The hopper is a large container at the top of the crusher where the stone is initially loaded. The hopper is designed to hold a significant amount of stone, allowing for continuous feeding of the crusher. The size and design of the hopper can vary depending on the type and size of the portable crusher.

3. Feeder Mechanism

Once the stone is loaded into the hopper, it is fed into the crusher using a feeder mechanism. There are several types of feeder mechanisms used in portable crushers:

• Vibrating Feeder: This type of feeder uses vibration to move the stone from the hopper into the crusher. The vibration helps to evenly distribute the stone and prevent clogging.
• Grizzly Feeder: This feeder has a series of bars or grates that allow smaller stones to pass through while larger stones are directed into the crusher. This helps to pre-screen the material and reduce the load on the crusher.
• Belt Feeder: A belt feeder uses a conveyor belt to move the stone from the hopper into the crusher. The speed of the belt can be adjusted to control the rate at which the stone is fed into the crusher.

4. Crushing Mechanism

Once the stone is fed into the crusher, it is crushed using various mechanisms depending on the type of crusher. Common types of portable crushers include:

• Jaw Crushers: These crushers use two plates, one stationary and one moving, to crush the stone. The moving plate moves back and forth against the stationary plate, crushing the stone between them.
• Impact Crushers: These crushers use impact force to crush the stone. The stone is fed into a chamber where it is struck by rotating hammers or blow bars, breaking it into smaller pieces.
• Cone Crushers: These crushers use a rotating cone inside a stationary bowl to crush the stone. The stone is fed into the top of the cone and is crushed as it moves down through the narrowing space between the cone and the bowl.

5. Conveyor Belts

After the stone is crushed, it is typically transported away from the crusher using conveyor belts. These belts move the crushed stone to a stockpile or directly to the next stage of processing, such as screening or further crushing.

6. Control Systems

Modern portable crushers are equipped with advanced control systems that allow operators to monitor and adjust the crushing process. These systems can include sensors, cameras, and automated controls to ensure efficient and safe operation.

Conclusion

In summary, portable crushers are fed stone using a combination of loading equipment, hoppers, feeder mechanisms, and conveyor belts. The specific process can vary depending on the type of crusher and the requirements of the operation. By understanding the various components and mechanisms involved, operators can ensure efficient and effective crushing of stone in a portable crusher setup.