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Method for producing cement from lead-zinc residues and fluorite ore dressing tailings

A production method and fluorite ore technology, applied in cement production and other directions, can solve problems such as reducing the quality of cement produced, and achieve the effects of reducing heat consumption, reducing cycle enrichment, and avoiding pollution

Inactive Publication Date: 2019-12-17
贵州德隆水泥有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the main raw materials of the cement in the above two patents do not use lead-zinc slag and fluorite ore dressing tailings as raw materials, which greatly reduces the quality of the produced cement to a certain extent.

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  • Method for producing cement from lead-zinc residues and fluorite ore dressing tailings

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Embodiment Construction

[0023] The invention discloses a cement production method using lead-zinc slag and fluorite ore beneficiation tailings as raw materials. Those skilled in the art can learn from the content of this article and appropriately improve the process parameters to realize it. It should be pointed out that all similar replacements and modifications are obvious to those skilled in the art, and they are all considered to be included in the present invention. The production method of the present invention has been described through preferred embodiments, and relevant personnel can obviously make changes or appropriate changes and combinations to the production method described herein without departing from the content, spirit and scope of the present invention to realize and apply the present invention. Invent technology. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the p...

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Abstract

The invention relates to the technical field of cement production, and further discloses a method for producing cement from lead-zinc residues and fluorite ore dressing tailings. The method concretelycomprises the following production steps: 1, selecting raw materials: selecting a certain amount of sandstones with the same size, putting the sandstones into a grinder, grinding the sandstones, pouring the ground sandstones into a screener, and separating large sandstone blocks from powdery sandstones in order to reserve the powdery sandstones for later use; and 2, weighing certain amounts of limestone, clay, iron ore chippings, lead-zinc residues and fluorite ore dressing tailings. The method for producing cement from lead-zinc residues and fluorite ore dressing tailings has the advantagesof realization of low-temperature calcination of a cement clinker, reduction of the heat consumption of the clinker, improvement of the strength of the clinker, improvement of the performances of theclinker, and achieving the purposes of reducing circulating enrichment of sulfur, relieving skinning blockage of a kiln tail system and reducing the process accidents of the kiln system by fixing sulfur in coal in the clinker in the form of mineral.

Description

technical field [0001] The invention relates to the technical field of cement production, in particular to a cement production method using lead-zinc slag and fluorite ore dressing tailings as raw materials. Background technique [0002] Cement is made of limestone and clay as the main raw materials, which are crushed, batched, and ground to make raw material, and then fed into the cement kiln to calcinate the clinker, and then the clinker is ground with an appropriate amount of gypsum, mixed materials, and additives. Cement is widely used in civil engineering, water conservancy, national defense and other projects. [0003] Among them, the patent number is CN107324675A, which discloses a production method of cement, which changes the traditional batching method of using limestone as the raw material for raw cement, and uses lime as the raw material for the raw material, which saves the need for limestone to be decomposed into lime in the rotary kiln The process increases t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/147C04B7/36C04B7/44
CPCC04B7/147C04B7/36C04B7/44Y02P40/10
Inventor 余三平
Owner 贵州德隆水泥有限公司
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