A kind of integrated preparation method of medical stone superfine powder and extraction liquid concentration

Abstract

An integrated preparation method of medical stone superfine powder and extract concentration, comprising the preparation of medical stone superfine powder and the concentration of medical stone extract, characterized in that the preparation steps of the superfine powder are as follows: (1) The particle size of the prepared material is 125mm-425mm; (2) Jaw crushing to a particle size of 48mm-52mm; (3) Impact crushing to a particle size of 3mm-5mm; (4) Large vibrating screen screening; (5) Hammer type Grinding to a particle size of 42 μm to 48 μm; (6) small vibrating sieve; (7) jet crushing to a particle size of 2 μm to 5 μm. The triple concentration steps of the extract are as follows: (1) circulation soaking; (2) triple concentration by nanofiltration, reverse osmosis and low temperature vacuum distillation. The preparation method of the present invention has high utilization rate of raw materials, short soaking period, can collect salt including all pore sizes below 10 Å, and has no effect on the components, and the combination of concentrated and treated waste water and waste liquid with reverse osmosis technology can improve the concentration of concentrated liquid. The benefits, increase the dissolution rate of mineral elements, increase the concentration, and improve the recycling rate.

Description

technical field [0001] The invention relates to powder preparation, in particular to an integrated preparation method of medical stone superfine powder and concentrated extract. Background technique [0002] The existing medical stone processing mainly includes a particle processing method and a powder processing method. The particle processing method uses a crusher to crush it to a particle size of 3mm-5mm; the powder processing method uses a ball mill to grind it into a fine powder of 25um-38um. The preparation steps of the medical stone concentrated solution include crushing the medical stone raw stone, pulverizing the medical stone particles, soaking the medical stone superfine powder to dissolve mineral elements, and concentrating the soaking solution. The concentration includes a common concentration method, a nanofiltration (NF) method, a reverse osmosis (RO) method, and a dual method of nanofiltration (NF) and reverse osmosis (RO). The disadvantages of ordinary conc...

AI Technical Summary

Problems solved by technology

The disadvantages of ordinary concentration methods are large amount of organic solvents, high concentration energy consumption, destruction of biological activity, and low product recovery; the disadvantages of nanofiltration (NF) methods are that they cannot collect pore size The following salt; the disadvantage of the reverse osmosis (RO) method is that it cannot collect the pore size The following salt.; while the shortcomings of nanofiltration (NF) and reverse osmosis (RO) are still unable to collect the pore size Below the salt content, and the operation and maintenance are relatively complicated