Novel steel slag powder produced through industrial waste residue sludge and treatment method of novel steel slag powder

Abstract

The invention relates to novel steel slag powder produced through industrial waste residue sludge. The novel steel slag powder is prepared from the following substances in percentage by mass: 80% of the sludge and 20% of steel slag. The invention further relates to a treatment method of the novel steel slag powder produced through the industrial waste residue sludge. The dried sludge and steel slag are mixed and ground together into fine powder, the output per machine-hour is increased by 70%, electricity is saved by 60%, the large amount of sludge can be used, thus land resources are saved, the problem of environmental pollution is solved, the cost is saved, and the quality of application of the steel slag powder to cement products and concrete is improved. When replacing part of cement to be used, the novel steel slag powder has the characteristics of small water demand, large mobility, large compatibility, good wear resistance, high strength and the like. When used for the concrete,the prepared novel steel slag powder has the characteristics of being less in water consumption, small in slump loss, capable of decreasing the using amount of a water reduction agent, good in antifreeze performance, high in anti-carbonization capability, high in chlorine ion permeability resistance, high in strength, low in cost and the like.

Description

technical field [0001] The invention belongs to the field of environmental protection of new building materials, and in particular relates to a new type of steel slag powder produced by utilizing industrial waste sludge and a processing method thereof. Background technique [0002] Sludge treatment is one of the research topics in the world today. Sludge contains a large amount of organic matter, various trace elements, 60% water, a small amount of heavy metals, and microbial pathogens and parasites. At present, there are 260 million tons of sludge discharge in my country every year, and the utilization rate is less than 10%. 90% of the sludge is piled up and buried in a large amount of land, causing serious secondary pollution to the environment. Therefore, it is imminent to study how to detoxify and reduce the amount of sludge. [0003] At present, the formation of steel slag is the waste slag discharged from the production of steel materials at a temperature above 1500 d...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of how to use a large amount of sludge, to solve the technical problems that steel slag powder is difficult to grind and to increase power consumption, to protect the environment from pollution, and to provide a new type of steel slag powder produced by industrial waste sludge and its Approach

Images