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Mine debris steamed brick and its production method

A manufacturing method and technology of autoclaved bricks, applied in the direction of manufacturing tools, chemical instruments and methods, and clay preparation devices, can solve problems such as high cost, poor performance, and large capacity, and achieve the elimination of debris flow, optimization of the ecological environment, and improvement of additional value effect

Inactive Publication Date: 2008-12-24
承德铜兴矿业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with ordinary sintered clay bricks, the current tailings bricks have the main problems of high cost, poor performance, large capacity and unstable quality.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1, a kind of stimulating agent. It is characterized in that its components and their weight percentages include: 30-65% of anhydrite, 20-43% of sodium sulfate, 17-25% of sodium silicate and 8-13% of sodium carbonate.

Embodiment 2

[0028] Embodiment 2, preparation method of activator. It is characterized in that: 30-65% of anhydrite, 20-43% of sodium sulfate, 17-25% of sodium silicate, and 8-13% of sodium carbonate are measured according to the proportion, mixed and ground to a fineness of 180 The mesh square hole sieve residue is less than 3.0% (weight). The prepared activator is white powder, which has the active function of activating tailings, fly ash, slag and the like.

Embodiment 3

[0029] Embodiment 3, a kind of curing agent A. Including slag or fly ash, cement clinker, chemical gypsum, it is characterized in that it also contains the activator described in embodiment 1, wherein each component and its weight percentage are: metallurgical slag or fly ash 45~85% , 5-50% of cement clinker, 5-15% of phosphogypsum or desulfurized gypsum, and 0.5-5% of activator.

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PUM

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Abstract

The invention provides a steam pressed brick of mine milltailings and its preparing method, that is resolves the problem of recycling waste in mine milltailings. The invention experiences three phases of exciting agent, firming agent and steam pressed brick, and provides a new utilized method for mine milltailings. Wherein exciting agent is produced by anhydrite, sodium sulfate, silicate of soda and sodium carbonate; the firming agent is produced by exciting agent, slag or coal ash, cement clinker or calcium lime and chemical gypsum; steam pressed brick the materials of which are 60-92% of mine milltailings, 0-40% of aggregate, 8-12% of firming agent is produced through agitation with adding water, wheel grinding, formation, placing without moving, entering the kettle for steam pressed protection, cooling, getting out from the kettle. The invention makes use of a new method to treat ecologic environment of mine milltailings, and the steam pressed brick has simple production technique, easy process, reliable quality and broad market with the cheap material and easy to get, that can be used extensively.

Description

Technical field: [0001] The invention belongs to the technical field of using mine tailings as building wall materials. Background technique: [0002] With the continuous exploitation of mineral resources by humans, the discharge of tailings is increasing day by day. As we all know, the accumulation of tailings is likely to cause air, soil and water pollution, and damage the ecological environment. If it is not handled properly, it will cause dangers such as mudslides and embankment failures, and even geological disasters in severe cases. Therefore, the disposal of mine tailings has always been a worldwide problem. [0003] At present, the development and utilization of tailings are mainly used as building materials. In this regard, foreign countries started earlier. Among them, the former Soviet Union carried out the research and production of tailings building materials as early as the early 1960s. For example, in addition to properly grading tailings as concrete aggreg...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B18/12C04B22/14C04B22/10B28B1/00B28C5/08B28B11/24
CPCC04B28/14C04B40/0039Y02W30/91C04B11/05C04B12/04C04B22/10C04B22/142C04B7/02C04B18/08C04B18/12
Inventor 马兴隆赵连生唐怀志赵风清马兴利张庆余陈建波王学武邓景明
Owner 承德铜兴矿业有限责任公司