Is it meaningful to make sand from construction waste?

Release time：2023-11-10    Click：130

Construction waste refers to various types of waste generated during the construction, demolition, renovation, decoration, and natural disasters of buildings, mainly including solid waste such as bricks and tiles, miscellaneous soil, waste concrete blocks, broken brick slag, mortar, and various packaging materials. After being crushed into sand, it can be made into sand and gravel aggregates, which can replace natural sand and be used in various industries.

Based on the wide distribution and complex composition of construction waste, it is generally suitable to use a mobile crushing and screening machine. The waste waste mixture is first crushed through jaw crushing to produce a mixture with uniform particle size. Then, it is removed and screened through a circular vibrating screen and air separation equipment to separate waste paper, plastic, and other debris. The production of sand from construction waste requires three main processes: crushing, sand making, and screening.

Is it meaningful to make sand from construction waste?

1. Crushing: The crushing process mainly uses coarse or medium crushing for efficient crushing. Generally, a jaw crusher or impact crusher is used, which can effectively crush various block materials comprehensively and achieve uniform particle size of semi-finished products.

2. Sand making: The sand making process generally uses an impact crusher, and sand shaping is carried out simultaneously. The semi-finished products conveyed by the conveyor belt are finely or ultra finely crushed to produce the size and particle shape of the finished products required by the user.

3. Screening: Screening mainly serves as an inspection function, inspecting the crushed or sanded materials. The materials that meet the standards are transported to the material pile, and the materials that do not meet the standards can be returned to the crushing chamber.

Is it meaningful to make sand from construction waste?

At present, the construction waste crushing and sand making machine project has been encouraged and promoted by the country, and relevant policies have been introduced to support construction waste sand making and make rational use of waste resources.