A kind of auxiliary device for convenient preparation of layered double metal hydroxide

Abstract

The invention belongs to the technical field of the preparation of layered double metal hydroxides, in particular to an auxiliary device for the preparation of layered double metal hydroxides. The separation mechanism of the shape structure, the top of the separation mechanism is installed with an outer ring grinding plate of annular structure consolidated with the inner side wall of the box, the inner ring of the outer ring grinding plate is installed with an inner ring grinding assembly, the inner ring The top outer ring of the grinding assembly is slidably sleeved with an outer isolation sleeve that is fixedly connected with the inner side wall of the top of the box. The invention can adjust the grinding precision of the raw materials as required, quickly cool the grinding plate, ensure that the heat generated by friction is discharged during the grinding process, avoid the damage of the raw material properties caused by the temperature rise of the grinding plate during the grinding process, and at the same time avoid the grinding plate due to The annealing caused by the temperature rise will reduce the hardness of the grinding plate, reduce the grinding effect, and improve the grinding efficiency and quality of the raw materials.

Description

technical field [0001] The invention relates to the technical field of preparation of layered double metal hydroxides, in particular to an auxiliary device for the preparation of layered double metal hydroxides. Background technique [0002] Layered Double Hydroxide (LDH) is a general term for Hydrotalcite (HT) and Hydrotalcite-Like Compounds (HTLCs), and a series of supramolecular materials assembled by intercalation of these compounds are called For the hydrotalcite intercalation material (LDHs), in the hydrothermal synthesis method, SolS and SolB are slowly added dropwise together and quickly mixed, and then the obtained slurry is immediately transferred to the autoclave, and at a certain temperature ( Usually 100℃) aging for a long time, and finally in the process of filtration, washing, drying and grinding to obtain the product, grinding treatment is required. When the existing grinding equipment is in use, the grinding plate produces a large amount of friction under th...

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Problems solved by technology

[0002] Layered double hydroxide (Layered Double Hydroxide, LDH) is a general term for hydrotalcite (Hydrotalcite, HT) and hydrotalcite-like compounds (Hydrotalcite-Like Compounds, HTLCs), a series of supramolecular materials assembled by intercalation of these compounds are called For hydrotalcite intercalation materials (LDHs), both SolS and SolB are slowly added dropwise together and quickly mixed by hydrothermal synthesis, and then the resulting slurry is immediately transferred to an autoclave, at a certain temperature ( Usually at 100°C) for a long time, and finally in the process of obtaining the product through filtration, washing, drying, and grinding, grinding treatment is required. When the existing grinding equipment is in use, the grinding plate produces a large amount of Heat can easily lead to changes in the properties of raw materials, and at the same time the hardness of the grinding plate is reduced, reducing the grinding effect, and at the same time the grinding accuracy cannot be adjusted well. Therefore, an auxiliary device for the preparation of layered double metal hydroxide is needed.

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