阅读说明：本技术 一种利用磷石膏尾矿制作保温墙体材料及其方法 (Thermal insulation wall material prepared from phosphogypsum tailings and preparation method thereof ) 是由 陈云 于 2019-09-24 设计创作，主要内容包括：本发明公开一种利用磷石膏尾矿制作保温墙体材料及其方法,由以下体积比材料组成,包括磷石膏、硅酸盐+硬脂酸钙+氟石粉混合物、气凝胶、玻璃微珠、三氯化铝+氯化钠+氯化镁+胶粉+十二烷基硫酸钠混合物,所述制作方法包括：采用三氯化铝+氯化钠+氯化镁+胶粉+十二烷基硫酸钠对磷石膏尾矿材料进行防辐射和防腐等处理,将处理好的磷石膏尾矿与硅酸盐+硬脂酸钙+氟石粉混合物加水后搅拌均匀,加入气凝胶和玻璃微珠,搅拌均匀后出机入模,自然养护16小时拆模存放。该组方制成的保温墙体材料,解决了以往磷石膏尾矿利用成本高、工艺复杂以及辐射和腐蚀处理不符合排放要求、不阻燃等问题,适宜推广。(The invention discloses a thermal insulation wall material prepared from phosphogypsum tailings and a preparation method thereof, wherein the thermal insulation wall material comprises the following materials in volume ratio, namely phosphogypsum, a mixture of silicate, calcium stearate and fluorspar powder, aerogel, glass beads, a mixture of aluminum trichloride, sodium chloride, magnesium chloride, rubber powder and sodium dodecyl sulfate, and the preparation method comprises the following steps: the phosphogypsum tailing materials are subjected to radiation protection, corrosion protection and other treatment by adopting aluminum trichloride, sodium chloride, magnesium chloride, rubber powder and lauryl sodium sulfate, the treated phosphogypsum tailings, a mixture of silicate, calcium stearate and fluorite powder are added with water and then are uniformly stirred, aerogel and glass beads are added, the mixture is taken out of a machine and is put into a mold after being uniformly stirred, and the mixture is naturally maintained for 16 hours, and then is subjected to mold removal and storage. The heat-insulating wall material prepared by the formula solves the problems that the conventional phosphogypsum tailings are high in utilization cost and complex in process, radiation and corrosion treatment do not meet emission requirements, flame retardance is not generated and the like, and is suitable for popularization.)

1. A thermal insulation wall material made of phosphogypsum tailings and a method thereof are characterized in that: the phosphogypsum tailing thermal insulation wall material comprises 40-60% of phosphogypsum, 40-60% of a mixture of silicate, calcium stearate and fluorspar powder, 2% of aerogel, 5% of glass beads, and 5% of a mixture of aluminum trichloride, sodium chloride, magnesium chloride, rubber powder and lauryl sodium sulfate according to volume ratio.

2. The method for manufacturing the thermal insulation wall material by using the phosphogypsum tailings as claimed in claim 1 is characterized in that: the concrete proportion of the mixture of silicate, calcium stearate and fluorite powder is 40-60 percent according to the volume ratio: 80% of silicate, 10% of calcium stearate and 10% of fluorite powder.

3. The method for manufacturing the thermal insulation wall material by using the phosphogypsum tailings as claimed in claim 1 is characterized in that: the mixture of 5% of aluminum trichloride, sodium chloride, magnesium chloride, rubber powder and lauryl sodium sulfate is prepared from the following components in percentage by volume: 10% of aluminum trichloride, 10% of sodium chloride, 8% of magnesium chloride, 65% of rubber powder and 7% of lauryl sodium sulfate.

4. The method for manufacturing the thermal insulation wall material by using the phosphogypsum tailings as claimed in claim 1 is characterized in that: the silicon aerogel refers to silicon dioxide aerogel, and the carbon aerogel refers to graphene aerogel.

5. The method for manufacturing the thermal insulation wall material by using the phosphogypsum tailings as claimed in claim 1 is characterized in that: the manufacturing method comprises the following steps:

1) the ardealite tailing material is subjected to radiation protection treatment by aluminum trichloride, sodium chloride, magnesium chloride, rubber powder and sodium dodecyl sulfate;

2) performing corrosion prevention neutralization treatment on the treated phosphogypsum tailing material and 40-60% of a mixture of silicate, calcium stearate and fluorite powder, adding water, and uniformly stirring;

3) then adding 5% of glass beads, stirring uniformly again, and slowly adding aerogel particles until the aerogel completely wraps the slurry;

4) adding the modified particle graphite, stirring uniformly, taking out the mixture, putting the mixture into a mold, naturally curing for 16 hours, and removing the mold to obtain the wall material.

6. The thermal insulation wall material and the method thereof made of phosphogypsum tailings according to claim 5 are characterized in that: adding water and stirring, wherein the water-cement ratio is 4: 6, i.e. 4 for water and 6 for the total amount of other materials.

7. The method for manufacturing the thermal insulation wall material by using the phosphogypsum tailings as claimed in claim 1 is characterized in that: the heat-insulating wall material comprises a wall building block material, a wall internal heat-insulating veneer material and a partition heat-insulating material.

Technical Field

The invention relates to a new material manufactured by utilizing waste regeneration, in particular to a heat-insulating wall material manufactured by utilizing phosphogypsum tailings and a method thereof.

Background

Phosphogypsum is a solid waste discharged in the process of producing phosphate fertilizer and phosphoric acid, about 4.5-5 tons of phosphogypsum is generated every 1 ton of phosphoric acid, the main component of the phosphogypsum is calcium sulfate (CaSO4 & lt 2H2O), and in addition, a small amount of impurities such as phosphate ore, fluoride, phosphoric acid, organic matters, acid insoluble substances, iron-aluminum compounds and the like which are not completely decomposed are also contained. It is well known that phosphogypsum also contains arsenic, copper, zinc, iron, manganese, lead, cadmium, mercury and radioactive elements. The impurities such as fluoride, free phosphoric acid, P2O5, phosphate and the like contained in the phosphogypsum are main factors causing environmental pollution in the stacking process of the phosphogypsum. The ardealite is stockpiled in a large amount, land resources are not consumed by public, and air, water systems and soil are polluted due to wind erosion and rain erosion. Prolonged exposure to phosphogypsum, of course, may lead to death or disease in humans. At present, the annual emission of phosphogypsum in China reaches about 5000 million t, and due to the bottleneck of resource utilization technology, the accumulated inventory exceeds 2 hundred million t. The phosphogypsum in China has no good utilization way, most of the phosphogypsum is stockpiled, land is occupied, resources are wasted, and the contained acid and other harmful substances easily pollute the surrounding environment, so that the phosphogypsum is not treated vigorously. Otherwise, harmony of people, environment and society and homeland protection are directly influenced, and immeasurable loss is directly brought to survival and development of enterprises. The harmless treatment of the phosphogypsum waste residue becomes a bottleneck problem affecting the production of phosphorus compound fertilizer enterprises, and the comprehensive utilization of the phosphogypsum becomes a key for sustainable development of the phosphate fertilizer chemical industry.

Disclosure of Invention

In order to solve the problems, the invention provides a thermal insulation wall material prepared from phosphogypsum tailings and a method thereof, wherein the thermal insulation wall material comprises 40-60% of phosphogypsum, 40-60% of a mixture of silicate, calcium stearate and fluorspar powder, 2% of aerogel, 5% of glass beads, and 5% of a mixture of aluminum trichloride, sodium chloride, magnesium chloride, rubber powder and sodium dodecyl sulfate.

The concrete proportion of the mixture of 40-60% of silicate, calcium stearate and fluorite powder is as follows according to volume ratio: 80% of silicate, 10% of calcium stearate and 10% of fluorite powder.

The mixture of 5% of aluminum trichloride, sodium chloride, magnesium chloride, rubber powder and lauryl sodium sulfate is prepared from the following components in percentage by volume: 10% of aluminum trichloride, 10% of sodium chloride, 8% of magnesium chloride, 65% of rubber powder and 7% of lauryl sodium sulfate.

The silicon aerogel refers to silicon dioxide aerogel, and the carbon aerogel refers to graphene aerogel; .

The manufacturing method comprises the following steps:

1) the ardealite tailing material is subjected to radiation protection treatment by aluminum trichloride, sodium chloride, magnesium chloride, rubber powder and sodium dodecyl sulfate;

2) performing corrosion prevention neutralization treatment on the treated phosphogypsum tailing material and 40-60% of a mixture of silicate, calcium stearate and fluorite powder, adding water, and uniformly stirring;

3) and then adding 5% of glass beads, stirring uniformly again, slowly adding aerogel particles until the aerogel completely and uniformly wraps the slurry, taking out the slurry, molding, and naturally curing for 16 hours and demolding to obtain the wall material.

The water is added for stirring, and the water-cement ratio is 4: 6, namely 4 parts of water and 6 parts of other materials in total;

the prepared thermal insulation wall material is mainly applied to wall building block materials, wall internal thermal insulation veneering materials and partition thermal insulation materials.

Detailed Description