Method for preparing environment-friendly brick from potassium feldspar tailings

A technology for potassium feldspar and environmental protection bricks, which is applied in the field of preparing environmental protection bricks by using potassium feldspar tailings, can solve the problems of insufficient utilization of potassium feldspar tailings, etc. Excellent dispersion effect

Inactive Publication Date: 2020-08-25
贺州市骏鑫矿产品有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the problem of insufficient utilization of potassium feldspar tailings in the prior art, a method for preparing environmental protection bricks using potassium feldspar tailings is provided, and the environmental protection bricks that meet the standard of sintered ordinary bricks are obtained, and the average compressive strength is relatively high, which meets the national standard MU25 grade in 5101-2003

Method used

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  • Method for preparing environment-friendly brick from potassium feldspar tailings
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  • Method for preparing environment-friendly brick from potassium feldspar tailings

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Embodiment 1

[0034] A method for preparing environmentally friendly bricks from potassium feldspar tailings, comprising the following technical steps:

[0035] 1) Treatment of potassium feldspar tailings: After the production of potassium feldspar, the tailings or tailings are sent to the ball mill, the ball-to-material ratio is 4:1, the initial slurry concentration is 60%, and propylene glycol-containing alginate is added dispersant, the amount of dispersant containing propylene glycol alginate is 0.5% of the mass of the abrasive, and it is finely ground to more than 80 mesh;

[0036] 2) Mixing for the first time: fully mixing the material obtained in the previous step with sludge with a moisture content of 70% to obtain sandy clay with a moisture content of 40%;

[0037] 3) mixing for the second time: the sandy clay and fly ash obtained in the previous step are mixed according to the mass ratio of 60%, 40%, and stirred evenly to form a mixture;

[0038] 4) Digestion: Add the second mixe...

Embodiment 2

[0047] A method for preparing environmentally friendly bricks from potassium feldspar tailings, comprising the following technical steps:

[0048] 1) Treatment of potassium feldspar tailings: After the production of potassium feldspar, the tailings or tailings are sent to the ball mill, the ball-to-material ratio is 5:1, the initial slurry concentration is 60%, and propylene glycol-containing alginate is added dispersant, the amount of dispersant containing propylene glycol alginate is 0.8% of the mass of the abrasive, and it is finely ground to more than 80 mesh;

[0049] 2) Mixing for the first time: fully mixing the material obtained in the previous step with sludge with a water content of 90% to obtain sandy clay with a water content of 40%;

[0050] 3) mixing for the second time: the sandy clay and fly ash obtained in the previous step are mixed by mass ratio of 70%, 30%, and stirred evenly to form a mixture;

[0051] 4) Digestion: Add the second mixed material after sti...

Embodiment 3

[0060] A method for preparing environmentally friendly bricks from potassium feldspar tailings, comprising the following technical steps:

[0061] 1) Treatment of potassium feldspar tailings: After the production of potassium feldspar, the tailings or tailings are sent to the ball mill, the ball-to-material ratio is 5:1, the initial slurry concentration is 60%, and propylene glycol-containing alginate is added dispersant, the amount of dispersant containing propylene glycol alginate is 0.6% of the mass of the abrasive, and it is finely ground to more than 80 mesh;

[0062] 2) Mixing for the first time: fully mixing the material obtained in the previous step with sludge with a water content of 80% to obtain sandy clay with a water content of 40%;

[0063] 3) mixing for the second time: the sandy clay and fly ash obtained in the previous step are mixed by mass ratio of 75%, 25%, and stirred evenly to form a mixture;

[0064] 4) Digestion: Add the second mixed material after sti...

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Abstract

The invention discloses a method for preparing an environment-friendly brick from potassium feldspar tailings. The method comprises the following technical steps: 1) treatment of the potassium feldspar tailings; 2) primary mixing: fully mixing the potassium feldspar tailings with sludge to obtain sandy clay; 3) secondary mixing: mixing 60-70% by mass of the sandy clay obtained in the previous stepwith 30-40% by mass of fly ash, and carrying out uniform stirring to form a mixture; 4) digestion: adding the stirred secondary mixture into a continuous digestion bin for digestion; 5) compression molding: carrying out compression molding on the digested second mixture under a vacuum condition to obtain a green brick, and naturally airing the green brick until a water content is 15-19% to obtainan aired green brick; 6) sintering of the green brick: putting the aired green brick into a kiln for firing; and 7) sealing of the kiln for cooling: sealing the kiln and conducting water seepage cooling. The environment-friendly brick prepared by using the method disclosed by the invention conforms to the MU25 grade in the national standard 5101-2003 in China, and has obvious advantages.

Description

【Technical field】 [0001] The invention relates to the technical field of preparation of environment-friendly bricks, in particular to a method for preparing environment-friendly bricks by using potassium feldspar tailings. 【Background technique】 [0002] Environmentally friendly bricks are also called aerated concrete blocks, which are widely used. They are mainly used in mechanical workshops and civil buildings for wall materials, filling walls, floor and roof panels and other load-bearing wall materials, as well as non-load-bearing materials and surrounding filling walls. At present, environmentally friendly bricks have become the leading product in the building materials industry. The country has gradually banned the use of clay solid bricks, and gradually replaced them with aerated concrete blocks and autoclaved bricks. Environmentally friendly bricks have the characteristics of light weight, good thermal insulation performance, strong earthquake resistance, good process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132C04B33/13C04B33/135
CPCC04B33/1305C04B33/131C04B33/1321C04B33/1324C04B33/1328C04B33/1352C04B35/626C04B35/6303C04B35/636C04B2235/3217C04B2235/3222C04B2235/3284C04B2235/656C04B2235/6567C04B2235/96Y02P40/60
Inventor 邓培有
Owner 贺州市骏鑫矿产品有限责任公司
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