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A new type of mineral powder produced from sludge and its preparation method

A sludge and mineral powder technology, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., can solve the problems of sludge and other industrial wastes polluting the environment, unable to be effectively treated, etc., to reduce carbon emissions , to achieve the effect of efficient utilization and saving consumption

Active Publication Date: 2017-07-14
江苏绿利新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Purpose of the invention: The purpose of the invention is to solve the problem that sludge and other industrial wastes pollute the environment and cannot be effectively treated, and provide a new type of mineral powder produced by sludge and its preparation method

Method used

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  • A new type of mineral powder produced from sludge and its preparation method
  • A new type of mineral powder produced from sludge and its preparation method
  • A new type of mineral powder produced from sludge and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0018] Firstly, 40% of sludge and 60% of slag are weighed according to the mass percentage, and the hydration reaction is carried out through mechanical mixing and stirring, and then enters the drying kiln and is dried at 200-400 degrees to form a new hydration mineral composition and a new Mineral powder products of active vitreous body, and finally the dried mineral powder products are ground to form new mineral powder products.

Embodiment 2

[0020] First, weigh 50% of the sludge and 50% of the slag according to the mass percentage, and carry out the hydration reaction through mechanical mixing and stirring, and then enter the drying kiln to dry at 200-400 degrees to form a new hydration mineral composition and a new Mineral powder products of active vitreous body, and finally the dried mineral powder products are ground to form new mineral powder products.

Embodiment 3

[0022] Firstly, 60% of sludge and 40% of slag are weighed according to the mass percentage, and the hydration reaction is carried out through mechanical mixing and stirring, and then enters the drying kiln and is dried at 200-400 degrees to form a new hydration mineral composition and a new Mineral powder products of active vitreous body, and finally the dried mineral powder products are ground to form new mineral powder products.

[0023] According to the national standard GB / T18046-2008, the new mineral powder product of the present invention is used as the technical performance data of the mineral powder, and the data are shown in Table 1. The new mineral powder product is used to replace part of the cement for physical performance testing and performance testing when it is mixed into concrete. The data See Table 2 and Table 3.

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Abstract

The invention relates to novel mineral powder produced by using sludge. The novel mineral powder produced by using sludge is prepared from the following raw materials in percentage by mass: 40-60% of sludge and 40-60% of slag. The invention further provides a preparation method of the novel mineral powder. The preparation method comprises the following steps: firstly, uniformly mixing and stirring the sludge and slag weighed in a mass ratio by machinery for hydration reaction; then feeding the mixture into a drying kiln to be dried at 200-400 DEG C to form a novel hydrated mineral composition and a novel mineral powder product of an active vitreous body; and finally pulverizing the dried mineral powder product to form a novel mineral powder product. According to the novel mineral powder provided by the invention, the output can be improved by 50%, the electricity can be saved by 50%, and the cost can be lowered at a rate of 150 yuan / ton. The novel mineral powder provided by the invention provides a novel technical process for sludge treatment, so that the sludge is massively used, the mineral resources are saved, 90% of CO2 emission is reduced, the environment is prevented from secondary pollution, and a novel technology and a novel method for resource utilization of solid wastes are realized.

Description

technical field [0001] The invention belongs to the field of new building materials, and in particular relates to a new mineral powder produced from sludge and a preparation method thereof. Background technique [0002] The composition of sludge is complex, in addition to containing a large amount of water, there are also a large amount of organic matter, refractory organic matter, various trace elements, pathogenic microorganisms and parasite eggs, heavy metals and other components. A large amount of untreated sludge is randomly stacked or discharged, which will cause new pollution to the environment. Therefore, the harmless treatment of a large amount of sludge with complex components and the utilization of resources to avoid secondary pollution have become one of the issues that the world's environmental protection circles have focused on. [0003] In order to deal with these sludge and other industrial waste residues, many people at home and abroad have thought of many ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B18/30
CPCY02W30/91
Inventor 谭纪林华玉海华建军蒋兆广
Owner 江苏绿利新材料科技有限公司