Method for producing multi-functional plum blossom-shaped papermaking sludge lightweight through-hole ceramsite

Abstract

The invention discloses a method for producing a multi-functional plum blossom-shaped papermaking sludge lightweight through-hole ceramsite. The method comprises ingredient stirring, extrusion granulation, drying, roasting, thermal insulation, screening and sealed packaging. The ingredients comprise papermaking sludge, high viscosity attapulgite clay, zeolite, activated carclazyte residues, activated alumina, nanometer zinc oxide, light magnesium oxide, light calcium carbonate, hollow microbeads, expanded perlite and sodium dodecyl sulfate. The ceramsite has the advantages of good adsorption performance, high effective specific surface area, high porosity, low bulk density, light weight, high strength and integration of micropores and macropores and is suitable for a variety of greening projects such as water purification and filtration, soil repair, landscaping, roof greening and desert management. The method is suitable for production of multi-functional lightweight plum blossom-shaped papermaking sludge through-hole ceramsites in plum blossom-type shape, cylinder shape and ball shape.

Description

technical field [0001] The invention relates to ceramsite, in particular to a production method of multifunctional quincunx-shaped paper-making sludge lightweight through-hole ceramsite. Background technique [0002] In the water purification and filtration process, a large amount of ceramsite filter material is required. The traditionally used ceramsite filter material is made of raw materials such as clay, clay and fly ash, which are granulated and sintered at high temperature. When cultivating or planting various seedlings, flowers and vegetables, fly ash ceramsite, clay ceramsite, shale ceramsite and flower ceramsite are often used as soilless cultivation substrates. [0003] Fly ash ceramsite, clay ceramsite and shale ceramsite are artificial lightweight aggregates, which use high-quality clay, shale or fly ash as the main raw materials, are roasted at high temperature in a rotary kiln, and are extruded. It has a honeycomb structure, so it has the characteristics of li...

AI Technical Summary

Problems solved by technology

[0012] In contrast, the bulk density of these types of ceramsite is relatively large, resulting in relatively small effective specific surface area and low water absorption rate. Users hope to invent a kind of ceramsite with good adsorption effect, fast filtration speed, and bulk density ≤ 800kg / m³ And lightweight ceramsite with a water absorption rate of ≥65%, suitable for water purification and filtration, soil restoration and various greening projects

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