What equipment is needed for a granite crushing production line with an hourly output of 300 tons?

To set up a granite crushing production line with an hourly output of 300 tons, you will need a combination of primary, secondary, and tertiary crushing equipment, as well as screening machinery to achieve the desired particle size distribution. Here's a general list of equipment that would be suitable:

1. **Primary Crushing**:

- **Jaw Crusher**: A large jaw crusher, such as a 1200 x 1000 mm model, would be capable of processing up to 700 tons per hour. This will ensure that the feed material is reduced to a manageable size for the subsequent crushing stages.

2. **Secondary Crushing**:

- **Cone Crusher**: A medium-sized cone crusher, such as a CS430 or similar, with a capacity of around 150-200 tons per hour, would be suitable for this stage. It will further reduce the size of the material produced by the jaw crusher.

3. **Tertiary Crushing**:

- **Impact Crusher**: A horizontal shaft impact crusher (HSI) or a vertical shaft impact crusher (VSI) with a capacity of around 100-150 tons per hour would be used for producing the final product or for further reducing the material if needed.

4. **Screening**:

- **Vibrating Screens**: Multiple screens with different mesh sizes will be needed to separate the crushed material into various fractions. A typical setup would include a set of coarse, medium, and fine screens. The sizes and number of screens depend on the desired final product specifications.

5. **Conveying**:

- **Belt Conveyors**: Conveyors are necessary to transport the material from one stage to another and to feed the crushers. The conveying capacity should be matched to the crusher outputs to ensure continuous operation.

6. **Feeding**:

- **Feeders**: Plate feeders or belt feeders are used to control the feed rate into the jaw crusher and to ensure an even distribution of material.

7. **Control System**:

- **Control Panel**: An automated control panel with a PLC system is essential to monitor and control the entire crushing and screening process, ensuring efficiency and safety.

8. **Safety and Environmental Protection**:

- **Emergency Stop Devices**: Safety interlocks, emergency stop buttons, and other safety features are necessary to protect operators and equipment.

- **Dust Control and Water Management**: Dust suppression systems and water management plans are important to minimize environmental impact and ensure compliance with local regulations.

The exact configuration of the production line will depend on the specific requirements of the final products, such as the range of sizes needed and the quality of the granite. It's also important to consider the availability of spare parts, the ease of maintenance, and the overall efficiency of the equipment when making your selection.

When planning a granite crushing production line, it's recommended to consult with equipment manufacturers or experienced engineers who can provide detailed recommendations based on your specific application and production goals.