Preparation method of baking-free porous ceramsite with high percentage of closed porosity

A technology of high closed porosity and porous ceramics, which is applied in the field of solid waste recycling and materials, can solve the problems of adjusting the pore structure without considering decomposition, and achieve the effects of realizing solid waste recycling, reducing preparation costs, and simplifying the preparation process
CN112794665AActive Publication Date: 2021-05-14贺州市坤德环保科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
贺州市坤德环保科技有限公司
Publication Date
2021-05-14

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Abstract

The invention relates to the technical field of solid waste recycling and materials, in particular to a preparation method of baking-free porous ceramsite with high percentage of closed porosity, step-by-step granulation and step-by-step pore forming are realized by adopting a foaming agent and an inorganic substance for promoting decomposition of the foaming agent, rapid, uniform and thorough pore forming of a ceramsite inner core is promoted, and the porosity is improved; then, the porous inner core and the granulation mixture continue to be granulated, a wrapping layer is formed on the porous inner core, preparation and wrapping of the porous inner core are completed in one step, and the ceramsite with the structure of the porous inner core and the wrapping shell layer is obtained. Firstly, mineral solid waste such as construction waste, tailings and coal ash can be utilized as raw materials, and solid waste recycling is achieved; secondly, the porosity is high, and the thermal insulation performance is good; and finally, the inner core and the wrapping process are completed in one step during granulation, the process is simplified, and the preparation cost is reduced.
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Description

technical field

[0001] The invention relates to the technical field of solid waste recycling and materials, in particular to a method for preparing non-fired porous ceramsite with high closed porosity rate. required building materials. Background technique

[0002] Ceramsite is a traditional porous material. This rigid skeleton material has the advantages of safety, non-toxicity, fire resistance, weather resistance, earthquake resistance, corrosion resistance, light weight and high strength, thermal insulation, sound absorption and noise reduction, simple manufacturing process, etc., and has been widely used in the fields of thermal insulation of buildings. . Studies have shown that when ceramsite concrete is used as the building exterior wall, it can not only reduce the building energy consumption by ~35%, but also significantly reduce the building's self-weight and construction cost.

[0003] The preparation methods of ceramsite include sintering method and unfired meth...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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