What are the Commonly Used Dust Control Solutions in the Sand and Gravel Crushing Production Lines?

The sand and gravel crushing production line typically refers to the specific crushing equipment used to grind and crush ore, reducing its particle size to the required range for subsequent resource recycling operations. However, whether it is during the production of the sand and gravel production line or in the ore field where the original ore is stacked with high processing intensity and a wide footprint. In the past, our crushing production sites were always filled with dust, creating a harsh environment. The dust generated during the crushing process spread into the air with the airflow, causing serious environmental pollution and posing a hazard to the health of the operators.

Therefore, in recent years, the country has increased environmental management and advocated the establishment of environmentally friendly stone crushing plants. Dust suppression treatment has become a necessary condition for the smooth operation of stone plants. So what are the dust control solutions commonly used in establishing sand and gravel crushing production lines? Let's find out now!

1. Suppress dust when transporting materials: The jaw crusher to the pre-screening workshop and the semi-finished material belt outlet are surrounded by fully enclosed light-colored steel, which reduces dust pollution and noise by more than 50% compared to traditional open-air production.

2. Capture and collect released dust: Select appropriate dust collector equipment according to the crusher model and process characteristics, such as bag dust collector, wet dust collector, etc. Placing dust removal equipment near the source of dust generation can capture dust to the greatest extent.

3. Spray system: Choose to install two water spray devices at the inlet, outlet and crushing cavity of the crusher. The two water spray heads at the feed port point toward the inlet; The two water spray heads at the discharge port form a certain angle relative to each other, so that the sprayed water is in a cross state to achieve the ideal effect.

4. Dust suction device: Install dust suction devices at the discharge port and the inspection port of the crusher equipment. The dust hood of the discharge port should be installed about 1000mm away from the discharge port. The plane of the dust hood should be perpendicular to the direction of dust flow; The connection between the dust hood and the blower of the crusher equipment maintenance port can be designed to be a flexible telescopic pipe making it easy to refuel the crusher and perform routine maintenance.

5. Optimize the structure: The structure can be modified and optimized in places with relatively large slopes such as equipment feed hoppers, protective covers, chutes, etc. The first is to reduce the inclination angle of the chute to reduce the height difference of the materials; The second is to improve the structure of the crusher. While the overall size of the equipment remains unchanged, the number of teeth on the tooth plate is increased and the tooth shape becomes relatively smaller.

6. Design improvement: Use reasonable process plans and equipment for production, and try to use closed transportation methods during material transportation. In addition, the screen must be cleaned in time to prevent clogging, so that some small particles and dust can be screened out before the material enters the crusher.

In summary, the solution of the sand and gravel crushing production line should implement the principle of prevention first, minimize the dust link in the overall plan, and strictly control dust pollution during raw material processing and transfer; Select equipment with less dust, and use spraying dust reduction and dust removal methods in the early stages. The implementation of the above measures can effectively improve the operating environment of the sand and gravel production line and improve the level of environmental protection.