Production method of multifunctional quincunx-shaped bentonite tailing lightweight through hole ceramsite

Abstract

The invention discloses a production method of multifunctional quincunx-shaped bentonite tailing lightweight through hole ceramsite. The production method is characterized by comprising the following steps: stirring materials, extruding and granulating, drying, calcining, keeping heat and sieving; and sealing and packaging to obtain the multifunctional quincunx-shaped bentonite tailing lightweight through hole ceramsite, wherein the materials comprise bentonite tailings, high-viscosity attapulgite clay, zeolite, active carclazyte waste dreg, active aluminum oxide, lightweight zinc oxide, lightweight magnesium oxide, lightweight calcium carbonate, hollow microspheres, expanded perlite, expanded vermiculite and sodium dodecyl sulfate. The multifunctional quincunx-shaped bentonite tailing lightweight through hole ceramsite has the characteristics of good adsorption performance, large effective specific surface area, high porosity, small bulk density, light weight and high strength and integration of micro-pores and macro-pores, and is suitable for a plurality of types of landscaping engineering including water quality purification and filtering, soil remediation, garden landscaping, roof landscaping, desertification control and the like; and the production method disclosed by the invention is applicable to production of the multifunctional bentonite tailing lightweight through hole ceramsite with different shapes including a quincunx shape, a cylindrical shape, a spherical shape and the like.

Description

technical field [0001] The invention relates to ceramsite, in particular to a production method of multifunctional plum-shaped bentonite tailings 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 light w...

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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