Iron tailing ceramsite and preparation method thereof

A technology of iron tailings and ceramsite, which is applied in the field of iron tailings ceramsite and its preparation, can solve the problems of polluting the environment and occupying land, and achieve the effects of increasing added value, promoting further increase, and increasing sintering temperature

Pending Publication Date: 2022-03-04
HEFEI UNIV OF TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

A large amount of iron tailings accumulates in the mining production process, which not only occupies land, pollutes the environment, but also poses a huge safety hazard

Method used

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  • Iron tailing ceramsite and preparation method thereof
  • Iron tailing ceramsite and preparation method thereof
  • Iron tailing ceramsite and preparation method thereof

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Embodiment Construction

[0028] The present invention will be further explained below in conjunction with specific embodiments.

[0029] The used raw material composition of embodiment 1-5 is as shown in the table below:

[0030]

[0031] The iron tailings ceramsite preparation method of embodiment 1-5 comprises the steps:

[0032] S1, passing the dried iron tailings through a 0.6mm square hole sieve to obtain fine iron tailings;

[0033] S2. Mix the iron tailings fine material with fly ash, gypsum, quicklime, instant sodium silicate, and magnetic nanomaterials to obtain a powdery material; add 270g of water to each kilogram of the powdery material and stir to obtain a mixed material;

[0034] S3. Put the mixed material into a disc pelletizer to make pellets, the pelletizing time is 10 minutes, place for 12 hours, and dry at 105°C for 6-8 hours to obtain spherical ceramsite;

[0035] S4. Cool the spherical ceramsite to room temperature, and then put it into an industrial microwave oven for microw...

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Abstract

The invention relates to the field of comprehensive utilization of iron tailing resources, and mainly relates to iron tailing ceramsite and a preparation method thereof. The method comprises the following steps: uniformly stirring raw materials according to a given mass percentage, adding water, mixing to obtain a mixed material, putting the mixed material into a disc pelletizer to prepare an iron tailing ceramsite spherical material, drying the obtained ceramsite, cooling to room temperature, putting into an industrial microwave oven, and carrying out microwave heating treatment to obtain the iron tailing ceramsite. And cooling to obtain the iron tailing spherical ceramsite with good grain composition. According to the method, the solid waste iron tailings can be fully utilized, the additional value of the solid waste can be greatly increased, resource recycling of the solid waste is achieved, site resources occupied by landfill are reduced, and meanwhile contribution is made to environmental protection.

Description

technical field [0001] The invention relates to the technical field of comprehensive utilization of tailings resources, in particular to iron tailings ceramsite and a preparation method thereof. Background technique [0002] Iron tailings are solid wastes discharged from iron ore concentrators after recycling concentrates, and are one of the most important solid wastes in iron mines. A large amount of iron tailings accumulates in the mining production process, which not only occupies land, pollutes the environment, but also poses a huge safety hazard. [0003] my country's iron ore resources are rich in reserves, but the quality is low, the composition is complex and difficult to select, and the utilization rate is extremely low. As a result, a large amount of tailings waste, that is, iron tailings, will be discharged in the process of iron ore sorting iron concentrate mine. Due to technical limitations, iron tailings are generally landfilled. [0004] In recent years, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132C04B33/13C04B35/622C04B35/64
CPCC04B33/1328C04B33/13C04B35/62204C04B35/622C04B35/64C04B2235/3272C04B2235/3208C04B2235/448C04B2235/3427C04B2235/606C04B2235/656C04B2235/6567C04B2235/77C04B2235/96Y02P40/60
Inventor 姚华彦张瑞卢俊雄黎生军鲁建国黎海峰扈惠敏
Owner HEFEI UNIV OF TECH
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