Industry News

How to build a Green Mine Standard Machined Sand Production Line?

author:dahua1 time:2020-03-04

Sand is used as a basic building material. There are many places where it can be applied, so the demand is relatively large. Then the output of the sand production line must be high and the quality is good. Gradually it can no longer meet the needs of the market, and a better and more environmentally friendly sand and gravel production line is needed to replace it. So, how to build a green mine standard machined sand production line?

The basic process of the production of machined sand can be generally divided into the following stages: raw materials → primary crushing → secondary crushing → primary screening → fine crushing → fine screening → machined sand. Because the stone itself has a certain soil content and humidity, it is generally divided into dry sand making machine and wet sand making. The main equipment used for dry sand making and wet sand making are basically the same, that is, primary crushing equipment, secondary and fine crusher and high efficiency. The sand making machine is the main body. The purpose of both is the same, both for higher sand quality and to meet the requirements for the use of concrete and dry mortar.

Luoyang Dahua Heavy Industry Science & Technology Co., Ltd.

Wet sand production is suitable for watery areas, and is closer to the water source. Wet sand making can establish sedimentation tanks and use filter press equipment to purify sewage to achieve the purpose of zero emissions and recycling of water resources. At the same time, fine sand recovery equipment can also be configured to collect fine sand in sewage. Dry sand making is suitable for areas with severe water shortage, and the equipment can be used to remove powder without consuming a large amount of water. However, both sand making methods must pay attention to environmental issues. In order to be able to pay attention to environmental protection in production, strict requirements must be based on the premise of environmental protection, reducing dust pollution, noise and waste water pollution, so that the surrounding environment is not affected and the degree of environmental pollution is reduced. Then, we need to do a good job in environmental protection of the machined sand production line. Today we will introduce several methods.

1. Adopt dust collection, and use a dust collector with high dust collection efficiency and reliable technology at all dust discharge points. And make sure that the dust emission concentration can reach the standard. In addition, the intermediate materials and waste materials must be sealed and sprayed to reduce the impact of dust on the surrounding environment.

2. Noise control. When purchasing equipment, users can choose the equipment with low noise as much as possible in the selection, and put the equipment in the closed plant area. Greening outside the workshop can also be used to block the propagation of noise.

3. Wastewater and sediment. Wastewater can be divided into domestic wastewater and sand washing wastewater. Domestic wastewater is treated with septic tanks and mixed with other sewage for treatment. After the treatment reaches the reuse standard, water on the production line and road watering are used. If the production line uses wet production, then the sand washing wastewater must be treated with waste cement. The treated water will be used for production water and the sediment and sieved waste after the sludge treatment will be used for the uneven land of the mine, this achieves zero emissions of waste cement.

A good production line can meet the lower emissions of dust, noise, and waste cement sand, and can meet environmental protection requirements. At the same time, it is also important for the quality of the machined sand. Higher environmental benefits!

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