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Phosphogypsum light-weight partition wall board and building block and manufacturing method thereof

The technology of lightweight partition board and phosphogypsum is applied in the field of energy saving and environmental protection, which can solve the problems of air, water system and soil pollution, high requirements on the geological conditions of the yard, and high cost of slag stacking, so as to achieve the protection of land and the environment, The effect of good sound insulation and high utilization rate

Inactive Publication Date: 2011-09-14
杜庆贵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since phosphogypsum contains harmful substances such as phosphorus pentoxide, fluorine, and free acid, if it is discharged indiscriminately, it will cause environmental pollution; setting up a storage yard not only occupies a large area, requires a large investment, and requires high slag stacking costs, but also requires the geological conditions of the storage yard. High, long-term accumulation of phosphogypsum will also cause air, water and soil pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] ① Take 36 parts of phosphogypsum, 18 parts of comprehensive filler and 18 parts of magnesium oxide and add them to the mixer and stir to make magnesium oxide phosphogypsum mixture;

[0047] ② Take 12 parts of bischofolite and place it in a small pool, add 16 parts of water and stir fully to dissolve the magnesium chloride to make an aqueous solution of magnesium chloride;

[0048] ③ Add magnesium chloride aqueous solution to the mixer with magnesium oxide phosphogypsum mixture and stir fully to make magnesite phosphogypsum slurry;

[0049] ④ The magnesite phosphogypsum cement slurry is directly injected into the mold to make high-strength magnesite phosphogypsum concrete lightweight partition wall panels and blocks.

Embodiment 2

[0051] ① Take 20 parts of phosphogypsum, 20 parts of comprehensive filler and 20 parts of magnesium oxide and add them to the mixer to stir to make magnesium oxide phosphogypsum mixture;

[0052] ② Take 16 parts of bischofite and place it in a small pool, add 23 parts of water and stir fully to dissolve the magnesium chloride to make an aqueous solution of magnesium chloride;

[0053] ③ Add magnesium chloride aqueous solution to the mixer with magnesium oxide phosphogypsum mixture and stir fully to make magnesite phosphogypsum slurry;

[0054] ④ Add 1 part of foaming agent to the magnesite phosphogypsum slurry, and fully stir to obtain a magnesite phosphogypsum foam slurry;

[0055] ⑤ Inject the magnesite phosphogypsum foam slurry directly into the mold to make magnesite phosphogypsum foam blocks;

[0056] ⑥ Inject magnesite phosphogypsum foam slurry ④ into the mold, add short fiber and neutral glass fiber cloth to make magnesite coal gangue foam wallboard.

Embodiment 3

[0058] ① Take 25 parts of phosphogypsum, 25 parts of comprehensive filler and 17 parts of magnesium oxide and add them to the mixer to stir to make magnesium oxide phosphogypsum mixture;

[0059] ② Take 14 parts of bischofolite and place it in a small pool, add 17 parts of water and stir fully to dissolve the magnesium chloride to make an aqueous solution of magnesium chloride;

[0060] ③ Add magnesium chloride aqueous solution to the mixer with magnesium oxide phosphogypsum mixture and stir fully to make magnesite phosphogypsum slurry;

[0061] ④ Add 1 part of foaming agent and 1 part of short fiber to the magnesite phosphogypsum slurry, and fully stir to obtain a magnesite phosphogypsum foam slurry;

[0062]⑤ Inject the magnesite phosphogypsum foam slurry directly into the mold to make magnesite phosphogypsum foam blocks or foam wallboards.

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Abstract

The invention discloses a phosphogypsum light-weight partition wall board and a building block and a manufacturing method thereof, which are characterized in that the phosphogypsum light-weight partition wall board and the building block consist essentially of raw materials according to the following weight percentages: 10-50% of phosphogypsum, 10-50% of magnesium oxide, 5-20% of magnesium chloride, 10-50% of water, 10-50% of packing, 0.1-3% of foaming agent and 0-5% of short fiber reinforced material. The phosphogypsum foamed building block or foamed wall board are light in weight, and good in sound insulation and heat preservation effects, thus being ideal energy-saving and environment-protective building materials; and main raw materials of phosphogypsum concrete can be obtained locally, the phosphogypsum concrete is simple and convenient in production, low in cost and pollution-free, and phosphogypsum concrete products not only can be widely used in mined-out areas of mines or tunnel backfilling, but also can be comprehensively utilized as surface layers, base layers and under layers of roads, and the like, thus having very broad application prospect.

Description

[0001] technical field [0002] The invention belongs to the technical field of energy saving and environmental protection, and relates to a method for making a phosphogypsum lightweight partition wall board and a block. Background technique [0003] At present, the annual discharge of phosphogypsum in the world has reached 280 million tons, and our country has exceeded 50 million tons, accounting for more than 70% of the industrial by-product gypsum. will also increase substantially. Since phosphogypsum contains harmful substances such as phosphorus pentoxide, fluorine, and free acid, if it is discharged indiscriminately, it will cause environmental pollution; setting up a storage yard not only occupies a large area, requires a large investment, and requires high slag stacking costs, but also requires the geological conditions of the storage yard. High, long-term accumulation of phosphogypsum will also cause air, water and soil pollution. Therefore, from the perspective o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B28/32
Inventor 杜庆贵山发寿朱中汉
Owner 杜庆贵
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