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Comprehensive utilization method of Luoyuan red tailings

A technology of tailings and Luoyuan, which is applied in the field of comprehensive utilization of Luoyuan red tailings, can solve the problem of not involving the application of solid waste, and achieve the effect of realizing high value-added resource utilization.

Active Publication Date: 2019-12-13
FUJIAN DESHENG NEW BUILDING MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the Luoyuanhong tailings used in this document are crushed or sawn materials produced during the processing of Luoyuanhong; the application of solid waste produced during the mining process of Luoyuanhong is not involved

Method used

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  • Comprehensive utilization method of Luoyuan red tailings

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] The present embodiment provides the comprehensive utilization method of Luoyuan red tailings, comprising the following steps:

[0092] (1) Provide processing tailings and mining tailings;

[0093] (2) Sieve the mining tailings with a swinging screen to obtain ore tailings with a particle size > 20mm and sandy soil materials with a particle size ≤ 20mm;

[0094] (3) Use a vibrating screen to screen the processing tailings to obtain stone scraps with a particle size > 5mm and stone powder with a particle size ≤ 5mm;

[0095] (4) Carry out hydrocyclone classification to the sand material, control the overflow particle size to be 250-300 mesh, and obtain washed mud and washed sand;

[0096] (5) mixing stone material scraps and ore tailings to obtain the first mixture;

[0097] (6) Coarsely crushing the first mixture to a particle size of 0.1-3 mm, then adding stone powder, and ball milling to a particle size of 50-100 μm; obtaining the second mixture;

[0098] (7) Carryi...

Embodiment 2

[0105] This embodiment provides a foamed ceramic made from various raw materials obtained in Embodiment 1.

[0106] Its formula is:

[0107] 12.2 parts of washed soil, 65 parts of washed feldspar, 17 parts of washed sand, 3 parts of washed mud, 2 parts of foaming agent, and 0.8 parts of stabilizer.

[0108] Technical testing was carried out on the obtained foamed ceramics, the compressive strength was 8.2MPa, and the bulk density was 208kg / m 3 , The thermal conductivity is 0.09W / m℃.

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Abstract

The invention discloses a comprehensive utilization method of Luoyuan red tailings. The method comprises the following steps: performing first classification on mining tailings to obtain ore tailingsand a sandy soil material; performing second classification on processing tailings to obtain stone left overs and a stone powder; performing third classification on the sandy soil material to obtain washed sand and washed mud used as raw materials for foamed ceramics; mixing and crushing the stone left overs and the ore tailings, mixing the crushed materials with the stone powder, crushing the mixed materials, performing magnetic separation and classification on the crushed materials to obtain fine iron ore, washed feldspar and washed soil for producing foamed ceramics or ceramic tiles. According to the method, by means of ordered matching of classification, crushing and magnetic separation, the Luoyuan red processing tailings and the mining tailings are fully utilized, and natural resources of minerals are utilized to the maximum extent.

Description

technical field [0001] The invention relates to the field of mineral waste utilization, in particular to a method for comprehensive utilization of Luoyuan red tailings. Background technique [0002] Luoyuanhong is a kind of granite produced in Luoyuan County, Fuzhou City, Fujian Province. It has bright colors and outstanding decorative properties. It is widely used as materials for floor coverings, countertops, carvings, various building and garden stones. During the mining and processing of Luoyuanhong, a large amount of solid waste will be generated. For example, during the mining process, there is a large amount of sand on the surface of the mine, and there is also a large amount of low-grade ore in the middle of the mine combined with sand, which is often abandoned during the mining process. Similarly, during the processing of Luo Yuanhong, such as cutting, grinding, and polishing, a large amount of waste will also be generated. These wastes are generally piled up near...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132
CPCC04B33/1324Y02P40/60
Inventor 朱祥辉
Owner FUJIAN DESHENG NEW BUILDING MATERIAL CO LTD
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