Zero-emission and zero-pollution concrete manufacturing technology

Abstract

The invention relates to a zero-emission and zero-pollution concrete manufacturing technology. The zero-emission and zero-pollution concrete manufacturing technology comprises the following steps that iron-containing industrial tailings meeting the national standard are selected and arranged in a closed / semi-closed working environment and conveyed into an electromagnetic feeding machine to be subjected to sand making, screening, storing and metering balance weight, then the iron-containing industrial tailings are conveyed into a concrete mixing station to be mixed, and concrete is prepared. The raw materials for preparing the concrete are placed in the closed working environment, and raise dust pollution caused by wind blowing and raining is avoided; meanwhile, a dust remover is utilized for further controlling raise dust generated during crushing and screening; and waste water generated in the whole technology steps is repeatedly utilized, pollution is reduced, and meanwhile the production cost is reduced. In addition, the iron mine tailings and production of the concrete are combined, the iron mine tailings are directly utilized and made into coarse aggregate and fine aggregate in the raw materials of the concrete, comprehensive utilization of the iron mine tailings is achieved, and the construction sand resources are obtained as well.

Description

technical field [0001] The invention belongs to the field of concrete production, and in particular relates to a zero-emission and zero-pollution concrete production process using iron-containing industrial tailings as raw materials. Background technique [0002] With the increasing demand for concrete in our country, the pollution problem in the process of concrete production has also attracted more and more attention from the public. At present, in my country's traditional concrete production enterprises, the concrete mixing station as concrete production equipment does not have any dust-proof and dust-suppression facilities, and hundreds of tons of sand and stones are stacked in the open air without any thatch cover. When the wind is blowing, there will be dust all over the sky nearby, and construction waste is piled up randomly, and production wastewater is discharged randomly, causing great pollution to the environment and affecting people's life and health. [0003] In...

AI Technical Summary

Problems solved by technology

At present, in my country's traditional concrete production enterprises, the concrete mixing station as concrete production equipment does not have any dust-proof and dust-suppression facilities, and hundreds of tons of sand and stones are stacked in the open air without any thatch cover. When the wind blows, there will be dust all over the sky nearby, and construction waste is piled up randomly, and production wastewater is discharged randomly, causing great pollution to the environment and affecting people's life and health

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