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Proppant prepared from tailings of magnesium ore, boron ore and iron ore and preparation method thereof

A technology for iron ore tailings and proppant, which is used in applications, household appliances, earth-moving drilling, etc., can solve the problems of industrial tailings occupying farmland and mountains, reasonable utilization of mining resources, and high resource development costs. Improve resource utilization, good chemical stability and acid resistance, and the effect of exquisite materials

Active Publication Date: 2013-07-10
杨松
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Our country is rich in magnesite, boronite, and iron ore resources, but with the continuous mining for many years, a large amount of industrial tailings have been accumulated, which not only caused industrial tailings to occupy a large amount of farmland and mountains, but also became a The source of environmental pollution, the phenomenon of vicious circles such as low rational utilization of mine resources, high resource development costs, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A proppant, the preparation raw material composition is: 25% of magnesium ore tailings, 30% of boron ore tailings, 35% of iron ore tailings and 13% of soft clay.

[0043] The preparation method of the above-mentioned high-strength ceramsite proppant comprises the following steps:

[0044] (1) Lightly burn the magnesium ore tailings and boron ore tailings at a calcination temperature of 1100°C, and then grind them to 600-700 meshes by a ball mill;

[0045] (2) Dry the iron ore tailings and soft clay at a drying temperature of 150°C, and then grind them to 600-700 meshes by a ball mill;

[0046] (3) Get magnesium ore tailings, boron ore tailings, iron ore tailings, soft clay according to the ratio of raw materials to make a mixture, and mix evenly;

[0047] (4) Granulate the homogeneously mixed premix obtained in the previous step through a disc granulator, and sieve to obtain semi-finished granules of 12 to 50 mesh;

[0048] (5) Send semi-finished granules into a rotar...

Embodiment 2

[0050] A proppant, the preparation raw material is composed of: 10% of magnesium ore tailings, 40% of boron ore tailings, 60% of iron ore tailings and 5% of soft clay.

[0051] The preparation method of the above-mentioned high-strength ceramsite proppant comprises the following steps:

[0052] (1) Lightly burn the magnesium ore tailings and boron ore tailings at a calcination temperature of 1250°C, and then grind them to 600-700 meshes by a ball mill;

[0053] (2) Dry the iron ore tailings and soft clay at a drying temperature of 180°C, and then grind them to 600-700 mesh by ball mill;

[0054] (3) Get magnesium ore tailings, boron ore tailings, iron ore tailings, soft clay according to the ratio of raw materials to make a mixture, and mix evenly;

[0055] (4) Granulate the homogeneously mixed premix obtained in the previous step through a disc granulator, and sieve to obtain semi-finished granules of 12 to 50 mesh;

[0056] (5) Send semi-finished granules into a rotary kil...

Embodiment 3

[0058] A proppant, the preparation raw material composition is: 40% of magnesium ore tailings, 10% of boron ore tailings, 20% of iron ore tailings and 20% of soft clay.

[0059] The preparation method of the above-mentioned high-strength ceramsite proppant comprises the following steps:

[0060] (1) Lightly burn the magnesium ore tailings and boron ore tailings at a calcination temperature of 1150°C, and then grind them to 600-700 mesh by a ball mill;

[0061] (2) Dry the iron ore tailings and soft clay at a drying temperature of 170°C, and then grind them to 600-700 meshes by a ball mill;

[0062] (3) Get magnesium ore tailings, boron ore tailings, iron ore tailings, soft clay according to the raw material ratio to make a mixture, and mix evenly;

[0063] (4) Granulate the homogeneously mixed premix obtained in the previous step through a disc granulator, and sieve to obtain semi-finished granules of 12 to 50 mesh;

[0064] (5) Send semi-finished granules into a rotary kiln...

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Abstract

The invention relates to a proppant. The proppant is prepared from magnesium ore tailings, boron ore tailings, iron ore tailings and mild clay. The preparation method of the proppant comprises the following steps of: firstly respectively carrying out soft burning treatment on the magnesium ore tailings and the boron ore tailings, and then, respectively milling through a ball mill; respectively carrying out drying treatment on the iron ore tailings and the mild clay, and then, respectively milling through a ball mill; weighing and uniformly mixing the raw materials according to a proportioning ratio so as to obtain a premixture; granulating and sieving the premixture; feeding the premixture into a rotary kiln, and carrying out heat preservation after firing; and sieving fired ceramsite, thereby obtaining the proppant. The proppant disclosed by the invention has the characteristics of high temperature resistance, high pressure resistance, corrosion resistance, high strength, high flow guide capability, low broken rate and the like, and the preparation method of the proppant is low in energy consumption and high in productivity.

Description

technical field [0001] The invention relates to a fracturing proppant and a preparation method thereof, in particular to a high-strength ceramsite proppant synthesized from industrial tailings and a preparation method thereof. Background technique [0002] Fracturing refers to a method of using hydraulic action to form cracks in oil and gas layers during oil or gas recovery. In the fracturing process of oil and gas layers, a fracturing vehicle is used to squeeze a high-pressure, large-displacement liquid with a certain viscosity into the oil layer. After many cracks are pressed out of the oil layer, proppant (such as quartz sand, etc.) is added to fill the cracks to improve oil and gas layer. Permeability to increase water injection (water injection wells) or oil production (oil wells). Fracturing technology plays an important role in the development of oil and natural gas, and the effectiveness of fracturing largely depends on the technical performance of fracturing proppa...

Claims

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Application Information

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IPC IPC(8): C04B33/132C09K8/80
CPCY02P40/60
Inventor 杨松聂旺发王大鹏
Owner 杨松
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