As a common natural stone resource, pebbles have become high-quality raw materials for construction sand because of their hard texture and strong compressive resistance. This article will introduce you to the recommended configuration of a 100-ton pebble crushing and sand-making production line.

1. Pebbles Characteristics and Market Prospects

The main component of pebbles is silicon dioxide, which has the following characteristics:

Mohs hardness 7-8, belonging to a relatively high hardness material

High compressive strength, up to 300MPa or more

Excellent wear resistance

Smooth surface, uniform particles

As natural sand resources are increasingly depleted, the market demand for machine-made sand continues to grow. From infrastructure construction projects to various construction projects, the demand for high-quality machine-made sand is increasing day by day. Processing pebbles into machine-made sand not only solves the problem of resource shortage, but also has good economic benefits.

2. Equipment configuration plan for production line

For the 100 tons per hour pebble crushing and sand making production line, the following configuration is recommended:

Main equipment:

Vibrating feeder: GZD960×3800 type, uniform feeding

Jaw crusher: PE600×900 as coarse crushing equipment

Cone crusher: HPT300 for medium crushing

Sand making machine: VSI6X1263 vertical shaft impact sand making machine

Vibrating screen: 3YK2460 circular vibrating screen

Supporting equipment:

Several belt conveyors

Centralized electric control system

Dust removal and noise reduction device

Among them, the combination of jaw crusher + cone crusher is particularly suitable for processing high-hardness materials such as pebbles, which can ensure crushing efficiency and equipment life. The VSI6X series sand making machine adopts the "stone hitting stone" principle and can produce cubic sand with excellent particle shape.

3. Process description

The complete production line process is:

Feeding: Vibrating feeder evenly transports raw materials

Coarse crushing: Jaw crusher crushes pebbles to less than 100mm

Medium crushing: Cone crusher further crushes materials to about 30mm

Sand making: Sand making machine processes 0-5mm machine-made sand

Screening: Vibrating screen separates qualified products

Sand washing (optional): removes impurities and improves the quality of finished products

The advantages of this configuration are:

High equipment matching and low energy consumption

Smooth process and high degree of automation

Good finished product particle shape and adjustable grading

Environmental protection design meets standards

4. Investment and benefit analysis

Take 100 tons per hour as an example:

Equipment investment is about 2-3 million yuan

Site requirement is about 3,000 square meters

Power requirement is about 500kW

Operation Cost (including labor, energy consumption, etc.) is about 15-20 yuan/ton

The market price of finished sand is about 60-80 yuan/ton

Static investment payback period is about 12-18 months

Note: The above data is for reference only and needs to be adjusted according to local market conditions

V. Maintenance and purchase suggestions

To ensure the efficient operation of the production line, please note:

Regularly check the wear of wearing parts

Keep the lubrication system working properly

Clean up blockage problems in time

Proper equipment protection in rainy season

When purchasing equipment, you should consider:

Manufacturer's technical strength and after-sales service

Actual processing capacity of equipment

Environmental protection index compliance

Operation and maintenance costs

Through reasonable configuration and scientific management, the pebble sand production line can not only meet environmental protection requirements, but also create considerable economic benefits. It is the preferred project for investment in the current sand and gravel industry.