Process for producing porous functional material by waste of concrete batching plant
A technology of functional materials and mixing stations, applied in the field of solid waste resource utilization, can solve problems such as environmental hazards, dust flying with the wind, and insufficient attention to concrete reuse
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Embodiment 1
[0009] The process for producing porous functional materials from concrete mixing plant waste materials specifically includes the following steps: take 500 grams of construction waste and heat-treat it at 550° C. for 60 minutes. After cooling, place it in a planetary ball mill for grinding for 30 minutes, and the ball milling parameter is 300 rpm. Mix the pulverized powder and special foaming agent evenly at a mass ratio of 5:1, add an appropriate amount of water and mix it into a slurry, and make a material ball with a particle size of about 2mm. The pellets are dried in a drying oven, and then baked in a muffle furnace. The specific process of roasting is: the first stage (room temperature-550°C) heating rate is about 20°C / min; the second stage (550-950°C) heating rate is 10-13°C / min (strictly controlled); the third stage Incubate at 950°C for 10-20min. Cool naturally after being out of the oven, and a thin layer of enamel forms on the surface of the product. The product ...
Embodiment 2
[0011] The process of producing porous functional materials from waste materials in concrete mixing plants, specifically includes the following steps: After simply crushing the waste materials in concrete mixing plants, sieve the broken materials with 1 mm, sort out large-grained stones, and use the under-screened materials to produce porous materials Materials: transfer the undersieve to an externally heated rotary heating furnace for heat treatment at 450°C for 30 minutes, transfer the heat-treated raw materials to a ball mill, and ball mill for 45 minutes at a ball mill speed of 300 rpm. Add 20% pore-forming agent into the ball mill, and the pore-forming agent is produced by a patented waste straw preparation method. Continue to dry mix in the ball mill for 5 minutes, then transfer the mixed raw materials to the batching tank, add an appropriate amount of water to stir, and then granulate with a molding machine, or granulate with a pounding method, and dry naturally after gr...
Embodiment 3
[0013] The process for producing porous functional materials from waste materials in concrete mixing plants specifically includes the following steps: the waste materials in concrete mixing plants are simply crushed, and the broken materials are screened with 1mm, and the large-grained stones are sorted out. For the production of porous functional materials; transfer the undersieve to an externally heated rotary heating furnace for heat treatment at 550°C for 60 minutes, transfer the heat-treated raw materials to a ball mill, and ball mill for 60 minutes at a speed of 400 rpm . Add 50% pore-forming agent into the ball mill, and the pore-forming agent is produced by a patented waste straw preparation method. Continue to dry mix in the ball mill for 5 minutes, then transfer the mixed raw materials to the batching tank, add an appropriate amount of water to stir, and then granulate with a molding machine, or granulate with a pounding method, and dry naturally after granulation; t...
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