Porcelain granules containing carbon and preparation method thereof

Abstract

The invention discloses a preparation method for porcelain granules containing carbon. According to the weight percentage, 5%-40% of carbon powder, 5%-25% of gold mine tailing powder and 35%-70% of fly ash make up main raw materials. The preparation method comprises the steps of: (1) the gold mine tailing powder is dipped in a HCl solution; (2) the carbon powder, the fly ash and the modified mine tailing powder are uniformly blended; and then water is added for wet mixing; (3) the wet material is prepared into spheric granules with the grain diameter of 5-20mm; (4) the spheric granules are dried and sintered to obtain the porcelain granules containing carbon. The porcelain granules containing carbon are multifunctional porcelain granules with the functions of adsorption, light weight, high strength, heat preservation, thermal insulation, etc.

Description

technical field

[0001] The invention relates to a carbon-containing ceramsite material and a preparation method thereof. Background technique

[0002] At present, there are many patents on ceramsite and its preparation methods. The main raw materials are clay, shale, sludge, loess, slag, fly ash, coal mine stripping, etc., and are prepared by adding binders and admixtures. However, the use of clay, shale, sludge, and loess not only causes damage to cultivated land, soil erosion, and environmental pollution, but also produces ceramsite with relatively high density, low strength, and poor mechanical and thermal properties. Features less.

[0003] Fly ash is a kind of waste residue produced by thermal power plants; gold tailings are unused solid or powdery wastes discharged after mining and sorting ore; if fly ash and gold tailings are not used, they will not only occupy cultivated land and cause environmental pollution. How to turn fly ash and gold tailings into treasures, ...

Examples

Embodiment 1

[0027] Embodiment 1, a preparation method of carbon-containing ceramsite, with 40 parts of carbon powder (nano-activated modified carbon powder), 25 parts of gold tailings powder and 35 parts of fly ash to form the main raw material, the particle size of the carbon powder≤ 0.1mm, the particle size of gold tailings powder is ≤0.05mm, and the particle size of fly ash is ≤0.05mm; follow the steps in turn:

[0028] (1), the gold tailings powder is soaked for 3 hours in HCl solution with a mass concentration of 25%, to carry out modification treatment;

[0029] (2), carbon powder, fly ash and modified gold tailings powder are placed in the mixer for dry mixing for 30 minutes; then add 14 parts of water and wet mix for 90 minutes to obtain wet material;

[0030] (3), the above-mentioned wet material is made into spherical particles with a particle size of 6-8mm by a granulator;

[0031] (4) Dry the above-mentioned spherical particles at 120°C for 3 hours, then heat at 600°C for 15 ...

Embodiment 2

[0033] Embodiment 2, a preparation method of carbon-containing ceramsite, with 35 parts of carbon powder (nano-activated modified carbon powder), 20 parts of gold tailings powder and 45 parts of fly ash to form the main raw material, the particle size of the carbon powder≤ 0.1mm, the particle size of gold tailings powder is ≤0.05mm, and the particle size of fly ash is ≤0.05mm; follow the steps in turn:

[0034] (1), gold tailings powder is soaked 6 hours in the HCl solution of 15% with mass concentration, to carry out modification treatment;

[0035] (2), carbon powder, fly ash and modified gold tailings powder are placed in a mixer for dry mixing for 60 minutes; then add 12 parts of water and wet mix for 60 minutes to obtain a wet material;

[0036] (3), the above-mentioned wet material is made into spherical particles with a particle size of 10-12mm by a granulator;

[0037] (4) Dry the above-mentioned spherical particles at 110°C for 3 hours, then keep them at 650°C for 10...

Embodiment 3

[0039] Embodiment 3, a preparation method of carbon-containing ceramsite, with 30 parts of carbon powder (charcoal powder), 25 parts of gold tailings powder and 45 parts of fly ash to form the main raw material, the particle diameter of carbon powder≤0.1mm, gold The particle size of the tailings powder is ≤0.05mm, and the particle size of the fly ash is ≤0.05mm; the following steps are carried out in sequence:

[0040] (1), the gold tailings powder is soaked for 3 hours in HCl solution with a mass concentration of 30%, to carry out modification treatment;

[0041] (2), carbon powder, fly ash and modified gold tailings powder were placed in a mixer for dry mixing for 39 minutes; then 13 parts of water were added and wet mixed for 69 minutes to obtain a wet material;

[0042] (3), the above-mentioned wet material is made into spherical particles with a particle size of 19 to 20 mm by a granulator;

[0043] (4) Dry the above-mentioned spherical particles at 120°C for 3 hours, then...

technical field

[0001] The invention relates to a carbon-containing ceramsite material and a preparation method thereof. Background technique

[0002] At present, there are many patents on ceramsite and its preparation methods. The main raw materials are clay, shale, sludge, loess, slag, fly ash, coal mine stripping, etc., and are prepared by adding binders and admixtures. However, the use of clay, shale, sludge, and loess not only causes damage to cultivated land, soil erosion, and environmental pollution, but also produces ceramsite with relatively high density, low strength, and poor mechanical and thermal properties. Features less.

[0003] Fly ash is a kind of waste residue produced by thermal power plants; gold tailings are unused solid or powdery wastes discharged after mining and sorting ore; if fly ash and gold tailings are not used, they will not only occupy cultivated land and cause environmental pollution. How to turn fly ash and gold tailings into treasures, ...

Examples

Embodiment 1

[0027] Embodiment 1, a preparation method of carbon-containing ceramsite, with 40 parts of carbon powder (nano-activated modified carbon powder), 25 parts of gold tailings powder and 35 parts of fly ash to form the main raw material, the particle size of the carbon powder≤ 0.1mm, the particle size of gold tailings powder is ≤0.05mm, and the particle size of fly ash is ≤0.05mm; follow the steps in turn:

[0028] (1), the gold tailings powder is soaked for 3 hours in HCl solution with a mass concentration of 25%, to carry out modification treatment;

[0029] (2), carbon powder, fly ash and modified gold tailings powder are placed in the mixer for dry mixing for 30 minutes; then add 14 parts of water and wet mix for 90 minutes to obtain wet material;

[0030] (3), the above-mentioned wet material is made into spherical particles with a particle size of 6-8mm by a granulator;

[0031] (4) Dry the above-mentioned spherical particles at 120°C for 3 hours, then heat at 600°C for 15 ...

Embodiment 2

[0033] Embodiment 2, a preparation method of carbon-containing ceramsite, with 35 parts of carbon powder (nano-activated modified carbon powder), 20 parts of gold tailings powder and 45 parts of fly ash to form the main raw material, the particle size of the carbon powder≤ 0.1mm, the particle size of gold tailings powder is ≤0.05mm, and the particle size of fly ash is ≤0.05mm; follow the steps in turn:

[0034] (1), gold tailings powder is soaked 6 hours in the HCl solution of 15% with mass concentration, to carry out modification treatment;

[0035] (2), carbon powder, fly ash and modified gold tailings powder are placed in a mixer for dry mixing for 60 minutes; then add 12 parts of water and wet mix for 60 minutes to obtain a wet material;

[0036] (3), the above-mentioned wet material is made into spherical particles with a particle size of 10-12mm by a granulator;

[0037] (4) Dry the above-mentioned spherical particles at 110°C for 3 hours, then keep them at 650°C for 10...

Embodiment 3

[0039] Embodiment 3, a preparation method of carbon-containing ceramsite, with 30 parts of carbon powder (charcoal powder), 25 parts of gold tailings powder and 45 parts of fly ash to form the main raw material, the particle diameter of carbon powder≤0.1mm, gold The particle size of the tailings powder is ≤0.05mm, and the particle size of the fly ash is ≤0.05mm; the following steps are carried out in sequence:

[0040] (1), the gold tailings powder is soaked for 3 hours in HCl solution with a mass concentration of 30%, to carry out modification treatment;

[0041] (2), carbon powder, fly ash and modified gold tailings powder were placed in a mixer for dry mixing for 39 minutes; then 13 parts of water were added and wet mixed for 69 minutes to obtain a wet material;

[0042] (3), the above-mentioned wet material is made into spherical particles with a particle size of 19 to 20 mm by a granulator;

[0043] (4) Dry the above-mentioned spherical particles at 120°C for 3 hours, then...