Filling mixture compound

FIELD: mining.

SUBSTANCE: filling mixture compound containing Portland cement, filler and water includes wet magnetic separation waste with specific surface area of 80 m2/kg as filler; Portland cement M 400 crushed in disintegrator together with wet magnetic separation waste of ferruginous quartzites (WMS) till composite binding agent with specific surface area of 500 m2/kg is obtained, at the following component ratio, wt %: portland cement M 400 5-10, wet magnetic separation waste 17-22, the above filler 68-71, and water is the rest.

EFFECT: environmental protection, filler material is obtained, which binds in its structure the contaminants and excludes their migration to environment.

1 ex

 

The invention relates to mining and mining and processing industry, namely the hardening filling mixtures.

Known composition hardening filling mixture comprising ground blast slag, Portland cement 400 M, filler and water, it contains as a filler glauconitic sand and additionally activating additive in the following ratio, wt.%:

ground blast slag14,3-15,2
Portland cement M 400about 2.2-2.3
glauconitic sand56,1-57,3
activating additiveof 6.1 to 7.2
waterthe rest,

activating additive includes ground glauconitic sand and RRT in the ratio of 100:0.2 and 0.3. RU # 1558102 IPC E21F 15/00

The disadvantages of the known filling mixtures are expensive, impossible to use in the composition of the waste technologies wet magnetic separation of iron ore.

The purpose of the invention is to protect the environment, obtaining backfill material, linking the structure of the contaminant, and the exclusion of their migration in the environment. This goal is achieved due to the fact that the composition of the backfill mixture comprising Portland cement, aggregate and water, contains as filler waste wet magnetic separation with a specific surface area of 80 m2/kg Portland cement 400 M, ground in a disintegrator together with the departure of wet magnetic separation of ferruginous quartzite (MMS) to obtain a composite binder with a specific surface area of 500 m2/kg, in the following ratio, wt.%: Portland cement 400 M 5-10, waste wet magnetic separation 17-22, the specified placeholder 68-71, water - the rest.

Waste magnetic separation are separate particles composed of mineral and mineral aggregates. Mineral grain aggregates consist mainly of quartz acute-angled, slightly elongated irregular shape with a conchoidal fracture. It is established that quartz waste MMS in General has a lower degree of crystallinity than the sand Wolski and lower-Olshansky fields. The most reactive is the chalcedony variety of regional metamorphosed suboperations quartz, the content of which reaches 60% of the total amount of this mineral. The degree of crystallinity increases: regional-metamorphic, folded-m is memorychecker and contact-metamorphic quartz. More often polymineral aggregates, which consist of particles of quartz, isometric with an earthy fracture grains of magnetite, hematite, a small number are elongated in the same direction of the grain of the amphiboles.

The filler is a fine fraction of waste wet magnetic separation - MMC passed processing fine grinding in the mill together with Portland cement.

The use of composite binder on the basis of activating additives in the form of finely dispersed activated fraction MMS with Portland cement significantly reduces the consumption of clinker component is Portland cement, which generally reduces the cost of hardening filling mixture.

Example

Stowing mixture is prepared as follows:

Waste wet magnetic with a specific surface area of 80 m2/kg separation and water is fed into the mixer, which also serves binder composition prepared by disintegration of fine waste MMS ferruginous quartzite and Portland cement to the specific surface area of 500 m2/kg.

The whole mixture was stirred at the following ratio, wt.%: Portland cement M 400 5, the waste wet magnetic separation of 22 specified placeholder 68, the water 5 and through, for example, pipeline transport is served in the seats filling up the mountain is haunted generation. Received backfill material binds in its structure contaminants and prevents their migration into the environment.

The composition of the backfill mixture comprising Portland cement, aggregate and water, characterized in that it contains as filler waste wet magnetic separation with a specific surface area of 80 m2/kg Portland cement 400 M, ground in a disintegrator together with the departure of wet magnetic separation of ferruginous quartzite (MMS) to obtain a composite binder with a specific surface area of 500 m2/kg, in the following ratio, wt.%:

Portland cement M 4005-10
waste wet magnetic separation17-22
the specified placeholder68-71
waterrest



 

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FIELD: mining.

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Backfill mix // 2270921

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2 tbl

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2 tbl

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