Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for manufacturing multifunctional ceramsite sand by utilizing bauxite tailings
The invention relates to a method for manufacturing multifunctional ceramsite sand from bauxite tailings, and belongs to the technical field of ceramsite production. The problem of low yield of ceramsite products with small particle sizes of 40/70 and 70/140 meshes is solved; raw materials comprise hard clay and soft clay which are matched according to a certain proportion. The preparation methodcomprises the following specific steps: calcining the hard clay; crushing and grinding a calcined material and the soft clay; adding water into the ground raw materials, carrying out wet grinding to obtain slurry, and adding an additive while carrying out wet grinding; drying the ground slurry by adopting a reverse-flow type pressure spray drying tower, and simultaneously granulating, screening, calcining, cooling and further screening to obtain ceramsite sand with two specifications of 40/70 meshes and 70/140 meshes. The product has good normal-temperature performance and high-temperature performance, two small-particle-size products can be produced at the same time through the method, and good market prospects are achieved.
本发明涉及一种利用铝矾土尾矿制造多功能陶粒砂的方法，属于陶粒生产技术领域；解决小粒径40/70、70/140目的陶粒产品产量低的问题；原料为按一定比例配合的硬质粘土和软质粘土，具体步骤为：将硬质粘土进行煅烧；将煅烧料以及软质粘土破碎粉磨；将粉磨后的原料加水湿磨成泥浆，在湿磨的同时加入添加剂；采用逆流式压力喷雾干燥塔对磨好的泥浆进行干燥，同时造粒、筛分、煅烧、冷却并进一步筛分，得到40/70和70/140目两种规格的陶粒砂；本发明产品具有良好的常温性能和高温性能，本方法可同时生产两种小粒径产品，具有很好的市场前景。
Method for manufacturing multifunctional ceramsite sand by utilizing bauxite tailings
The invention relates to a method for manufacturing multifunctional ceramsite sand from bauxite tailings, and belongs to the technical field of ceramsite production. The problem of low yield of ceramsite products with small particle sizes of 40/70 and 70/140 meshes is solved; raw materials comprise hard clay and soft clay which are matched according to a certain proportion. The preparation methodcomprises the following specific steps: calcining the hard clay; crushing and grinding a calcined material and the soft clay; adding water into the ground raw materials, carrying out wet grinding to obtain slurry, and adding an additive while carrying out wet grinding; drying the ground slurry by adopting a reverse-flow type pressure spray drying tower, and simultaneously granulating, screening, calcining, cooling and further screening to obtain ceramsite sand with two specifications of 40/70 meshes and 70/140 meshes. The product has good normal-temperature performance and high-temperature performance, two small-particle-size products can be produced at the same time through the method, and good market prospects are achieved.
本发明涉及一种利用铝矾土尾矿制造多功能陶粒砂的方法，属于陶粒生产技术领域；解决小粒径40/70、70/140目的陶粒产品产量低的问题；原料为按一定比例配合的硬质粘土和软质粘土，具体步骤为：将硬质粘土进行煅烧；将煅烧料以及软质粘土破碎粉磨；将粉磨后的原料加水湿磨成泥浆，在湿磨的同时加入添加剂；采用逆流式压力喷雾干燥塔对磨好的泥浆进行干燥，同时造粒、筛分、煅烧、冷却并进一步筛分，得到40/70和70/140目两种规格的陶粒砂；本发明产品具有良好的常温性能和高温性能，本方法可同时生产两种小粒径产品，具有很好的市场前景。
Method for manufacturing multifunctional ceramsite sand by utilizing bauxite tailings
一种利用铝矾土尾矿制造多功能陶粒砂的方法
TANG KE (Autor:in) / DUAN HUSHENG (Autor:in) / XU MEIPING (Autor:in)
04.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
B01D
SEPARATION
,
Trennen
/
B01J
Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie
,
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
/
B02C
CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL
,
Brechen, Pulverisieren oder Zerkleinern allgemein
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