With the soaring price of sand and gravel materials and increasing profit margins on the market, the demand for sand making equipment is also increasing. But as a kind of equipment with stricter requirements than crusher technology, sand making machine can not only crush stone into the size of finely crushed sand, but because many customers do not consider the construction quality requirements of sand, it is easy to overlook the technical nature of sand making machine. In terms of the problem, the sand production line manufactured by Zhejiang Lizhi Machinery has effectively solved the requirements of the size of the sand and the construction quality.

In view of the problems listed above, let’s take a look at the working principle of the sand production line: the sand production line is mainly composed of vibrating feeder, jaw crusher, double-roll crusher, four-roll three-crusher, vibrating screen, and belt conveyor. , Electrical control system and other equipment. When working, the loader is used to pour the bulk materials into the silo, and then the vibrating feeder will evenly send the materials to the jaw crusher to coarsely crush the materials. The machine is sent to the double-roller crusher for medium crushing. The medium crushed material is sent to the four-roller three-crusher by the belt conveyor for fine crushing. The finely crushed material is sent to the vibrating screen by the belt conveyor for screening. The materials of specifications and the materials that meet the particle size requirements are sent to the finished product pile by the belt conveyor; the unqualified materials are returned to the crusher by the belt conveyor to be crushed again, forming a closed loop.

Let's take a look at how the roller crusher makes the sand production line finer:

1. According to the particle size required by the user: the roller surface of the roller crusher is divided into two types: flat roller surface and surfacing roller surface. The flat-roller model is suitable for fine crushing operations where the feed size is less than 80mm and the finished product size is 1-10mm. The surfacing roll surface model is suitable for medium and fine crushing operations with a particle size of less than 150 mm and a finished product particle size of 5-30mm.

2. When the compressive strength of the feed material exceeds 250 MPa, it is recommended to use an energy-saving roller (mill) machine. According to user requirements, it can be divided into two methods: V-belt and coupling drive (hard connection).

3. When the mine has no power, the equipment can be changed to diesel engine or gasoline engine as power.

4. Adjust according to the size of the discharge: the roller is equipped with a wedge or gasket adjusting device, and the top of the wedge device is equipped with an adjusting bolt. When the adjusting bolt pulls up the wedge, the wedge will move the top of the roller away from the fixed wheel. The shim device of the roller crusher adjusts the discharge particle size by increasing or decreasing the number or thickness of the shim, that is, the gap between the two rollers becomes larger, and the discharge particle size becomes larger; when the wedge is downward, the shim is reduced. When the gap between the two rollers becomes smaller, the gap between the two rollers of the movable roller becomes smaller under the action of the compression spring, and the discharge particle size becomes smaller. The gasket device of the roller crusher is the key to the material size control of the roller crusher.

With the continuous improvement of Zhejiang Lizhi Machinery's innovative manufacturing process, our production technology is becoming more and more perfect. The sand production line manufactured by Zhejiang Lizhi Machinery fully meets the requirements of environmental protection and adopts iron, dust removal and noise reduction devices. , High degree of automation, small footprint, no requirement for moisture, simple and convenient maintenance. Users are welcome to come to the factory for trial operation and discharge experiment, and the crushing effect is intuitive.