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Tailing, alkali slag and ore slag cementing material stirring device and preparation process

The technology of a stirring device and cementitious material is applied in the field of slag cementitious material stirring device and preparation process, tailings, building materials, and alkali slag, which can solve the problems of environmental pollution and high cost, and achieve high utilization rate and high fluidity. , the effect of simple process

Pending Publication Date: 2017-07-14
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a tailings, alkali slag, slag cementitious material stirring device and preparation process, use slag and alkali slag to prepare tailings gelling agent, use a large amount of waste alkali slag and slag to make tailings The cementitious material not only overcomes the defects of high cost and indirect serious environmental pollution caused by the use of cement in the existing gelled materials for construction, but also effectively utilizes a large amount of alkali slag waste and turns waste into treasure

Method used

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  • Tailing, alkali slag and ore slag cementing material stirring device and preparation process
  • Tailing, alkali slag and ore slag cementing material stirring device and preparation process
  • Tailing, alkali slag and ore slag cementing material stirring device and preparation process

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Effect test

Embodiment 1

[0033] Take the actual required amount of alkali slag, slag, fly ash and Anshan iron ore tailings for construction projects, and their mass fractions are 15%, 15%, 5%, and 65% respectively; the mass fraction of the excitation solution is the total amount of the above mixture 10% (mass), by molar concentration of 4.0mol / L of KOH and 4.0mol / L of Na 2 SiO 3 The solution was mixed 1:1 as the excitation solution. First, the alkali slag is crushed, then injected into the aqueous solution according to the mass ratio of 1:1, stirred and ground to obtain the alkali slag mortar, and then the measured excitation liquid is evenly added to the alkali slag mortar, stirred evenly at a slow speed, and then the slag is evenly added , fly ash, after stirring evenly, add the measured Anshan-type iron ore tailings, stir evenly, and control the discharge temperature to 50°C through the mixing device to obtain tailings, alkali slag, and slag cementitious materials, and then mix them Inject it int...

Embodiment 2

[0039] Take the actual amount of alkali slag, slag, CaO and Anshan iron ore tailings used in the construction project, and the mass fractions are 10%, 15%, 5%, and 70% respectively; the mass fraction of the excitation solution is 15% of the total amount of the above mixture (quality), by molar concentration is the NaOH of 2.0mol / L and the Na of 2.0mol / L 2 SiO 3 The solution was mixed 1:1 as the excitation solution. First, the alkali slag is crushed, then injected into the aqueous solution according to the mass ratio of 1:1, stirred and ground to obtain the alkali slag mortar, and then the measured excitation liquid is evenly added to the alkali slag mortar, stirred evenly at a slow speed, and then the slag is evenly added , CaO, after stirring evenly, add the measured Anshan-type iron ore tailings, stir evenly, and control the discharge temperature to 40°C through the mixing device to obtain tailings, alkali slag, and slag cementitious materials, and then inject them into 40m...

Embodiment 3

[0045] Get the actual required amount of alkali slag, slag, fly ash and vanadium-titanium magnetite tailings, and its mass fractions are respectively 10%, 15%, 5%, and 70%; the mass fraction of the excitation solution is the total amount of the above mixture. Amount of 15% (mass), by the molar concentration of 1.0mol / L of NaOH and 1.0mol / L of Na 2 SiO 3 The solution was mixed 1:1 as the excitation solution. First, the alkali slag is crushed, then injected into the aqueous solution according to the mass ratio of 1:1, stirred and ground to obtain the alkali slag mortar, and then the measured excitation liquid is evenly added to the alkali slag mortar, stirred evenly at a slow speed, and then the slag is evenly added , fly ash, after stirring evenly, add the measured vanadium-titanium-magnetite tailings, stir evenly, and control the discharge temperature to 50°C through the mixing device to obtain tailings, alkali slag, and slag cementitious materials, and then put It is poured...

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Abstract

The invention discloses a tailing, alkali slag and ore slag cementing material stirring device and a preparation process. An industrial solid waste-alkali slag serves as a part exciting agent and a filler of a mineral cementing material for the first time; two solid wastes of iron tailings and the alkali slag are used for preparing the mineral cementing material; two industrial waste slag with high displacement is synthesized as a new cementing material; the new building material can partially replace Portland cement in civil infrastructure construction; and the solid wastes are recycled to reduce CO2 emission for restraining global climate change and to protect the energy. The alkali slag used in a cementing agent is alkali plant waste slag; and tailing sand is not classified, and single tailing is not limited, so that the application range is wide, the alkali slag and tailing accumulation and pollution problems are partially solved, and other industrial waste slag-ore slag and fly ash is resourcefully used to achieve more prominent environmental protecting effect.

Description

technical field [0001] The invention relates to a building material composed of soda-making industrial waste and mine iron tailings, belongs to the field of industrial solid waste recycling, and in particular relates to a stirring device for tailings, soda slag, and slag cementitious materials and a preparation process. Background technique [0002] For more than a hundred years, the waste rocks stripped from Yanshan and Taihangshan metal mines and tailings from mineral processing have accumulated in large quantities. For example, there are more than 4 billion tons of stocks in the northwest districts and counties of Baoding, the entire territory of Chengde City, and the northern districts and counties of Tangshan City, of which only Iron tailings account for more than 90%, occupying a large amount of land and polluting the environment. In recent years, although the comprehensive utilization of iron tailings has been discussed, it is not yet mature enough. Due to its low act...

Claims

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Application Information

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IPC IPC(8): B28C9/02B28C5/00B28C7/00B28C5/46C04B7/24
CPCB28C5/003B28C5/466B28C7/0007B28C9/02C04B7/243C04B12/005Y02P40/10
Inventor 徐东强林永会杨芸芸南士卿李彦奇张娜王迪郭丽艳薛宇飞赵阳
Owner HEBEI UNIV OF TECH
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