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Deep development and utilization method for glauberite ore mining waste rocks

A glauberite and waste rock technology, which is applied in the field of glauberite resource utilization, can solve the problem that the mining waste rock has not been effectively utilized as resources, and achieves the effects of low production cost, improved economic benefit, and high conversion and utilization rate.

Pending Publication Date: 2021-06-25
四川省洪雅县青工科技有限公司
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  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for deep development and utilization of glauberite mining waste rocks, so as to solve the problem that the existing glauberite mining waste rocks have not been effectively utilized as resources

Method used

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  • Deep development and utilization method for glauberite ore mining waste rocks
  • Deep development and utilization method for glauberite ore mining waste rocks

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Embodiment 1

[0040] A method for deep development and utilization of glauberite mining waste rocks, comprising the following steps:

[0041] (1) Crushing the waste rock produced by glauberite mining to make glauberite particles, the particle size of the obtained glauberite particles is less than 35mm;

[0042] (2) Send the prepared Glauberite ore particles into a wet ball mill, perform wet ball milling, and prepare Glauberite slurry through the wet ball mill, and the particle size of the Glauberite slurry in the prepared Glauberite slurry is less than 0.50mm;

[0043] (3) The prepared glauberite pulp is sent to the multi-stage dense washing section by the pulp pump for countercurrent washing. The thickened mud is transferred downstream by the mud pump, and the dense washing liquid is transferred countercurrently by the brine pump. The raw liquid of the dense washing liquid Ordinary industrial water can be used. When the dense lotion flows back to the first stage, control the amount of conc...

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Abstract

The invention discloses a deep development and utilization method for glauberite ore mining waste rocks, belongs to the technical field of glauberite ore resource utilization, and aims to provide a deep development and utilization method for glauberite ore mining waste rocks to solve the problem that existing glauberite ore mining waste rocks are not effectively recycled. The method comprises the following steps: carrying out resource deep development and utilization on glauberite ore mining waste rocks, carrying out crushing, wet ball milling and multi-stage dense washing treatment on the waste rocks, performing dense wash solution processing to prepare NaHCO3 and (NH4)2SO4, carrying out washing and filter pressing on dense slurry by a washing type filter press to prepare a filter cake, and carrying out granulation and drying on the filter cake to prepare glauberite gypsum which can be used as a building raw material and a cement additive, carrying out solid-solid separation, comprehensive impurity removal and drying on the filter cake to obtain high-purity gypsum for building materials, and carrying out surface modification treatment on the high-purity gypsum for building materials to obtain filling gypsum for composite materials. The method is suitable for deep development and utilization of the glauberite mining waste rocks.

Description

technical field [0001] The invention belongs to the technical field of glauberite resource utilization, and in particular relates to a method for deep development and utilization of glauberite mining waste rock. Background technique [0002] my country has abundant glauberite resources, which are widely distributed in Sichuan, Yunnan, Hunan, Guangxi and other places. Glauber's salt (Na 2 SO4·CaSO 4 ) is mainly used in the production of Yuanmingfen (Na 2 SO 4 ). At this stage, during the development process of Glauberite Mine, the waste rock has not been fully utilized as a resource. It has accumulated more than 10 million tons over the years by relying on land occupation and storage. There is an environmental pollution problem. If the glauberite mining waste rock can be effectively utilized as a resource, it will not only turn waste into treasure and improve the economic benefits of the enterprise, but also solve problems such as land occupation and environmental pollu...

Claims

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Application Information

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IPC IPC(8): C01D7/02C01C1/244C04B11/26
CPCC01D7/02C01C1/244C04B11/266
Inventor 张春太张云照余建兵何军
Owner 四川省洪雅县青工科技有限公司
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