how to crusher river pebbles into sand ？

To crush river pebbles into sand, you will need a jaw crusher or impact crusher, which are often used in the production of sand and gravel aggregate. The process typically involves feeding the river pebbles into the crusher, where they are crushed and reduced in size. The crushed pebbles can then be screened to produce the desired size of sand. Additional equipment, such as a vibrating screen or a washing plant, may be necessary to remove any dirt or debris from the crushed pebbles and to ensure that the final product is of a high quality.