Environmental protection measures in the process of crushed stone production mainly include the following aspects:
Optimize production process: Use advanced crushing, screening, sand making and other equipment at home and abroad to improve production efficiency, reduce energy consumption and pollutant emissions. For example, select high-efficiency, low-noise, low-dust emission crushing equipment such as cone crusher, impact crusher, etc., and use vibrating screen for screening equipment to improve screening efficiency and reduce dust generation.
Dust control: Take measures such as sealing, negative pressure, and spraying to reduce dust emissions. The dust-generating links of the production line are sealed, and negative pressure exhaust devices are set up to reduce dust concentration through spray devices. For example, greening spray devices are installed at the feed port of the jaw crusher, and the main dust-rich parts in production are closed to reduce dust escape.
Wastewater treatment: The wastewater generated during the production process must be treated to meet national and local emission standards. By setting up wastewater treatment facilities, ensure that the wastewater meets environmental protection requirements before discharge.
Noise control: The noise emission of the production line must meet national and local standards. Reduce the impact on the surrounding environment by staying away from residential areas or taking noise reduction measures, such as using low-noise equipment and setting up sound barriers.
Solid waste treatment: The solid waste generated needs to be classified, stored, transported and treated to prevent environmental pollution. For example, the tailings are dehydrated and then backfilled in the goaf to increase the tailings disposal capacity.
Environmental protection measures during transportation: Sprinkling water, laying sprinklers and other measures are taken during transportation to reduce dust diffusion. Regularly sprinkle water on the transportation roads for cleaning, and set up devices for washing transport vehicles at important access channels to effectively reduce dust generated during transportation.