Method for preparing medical stone micropowder and concentrating extract

Abstract

An integrated preparation method of ultrafine Maifanite powder and concentration of extractive liquid comprises the preparation of the ultrafine Maifanite powder and the concentration of the extractive liquid of the Maifanite. The integrated preparation method is characterized in that the preparation of the ultrafine Maifanite powder comprises following steps: (1) preparing a material with a particle size of 125 to 425 mm; (2) jaw-crushing to obtain a particle size of 48 to 52 mm; (3) crushing in a back-impact manner to obtain a particle size of 3 to 5 mm; (4) sorting by a large-vibration sieve; (5) pulverizing in a hammer manner to obtain a particle size of 42 to 48 Mu m; (6) sorting by small-vibration sieve; and (7) crushing with air flow to obtain a particle size of 2 to 5 Mu m; and the concentration of the extractive liquid comprises following steps: (1) soaking circularly; and (2) concentrating by nano-filtration, reverse osmosis and low-temperature vacuum distillation. The preparation method has the advantages of high material utilization rate and short soaking period, and can collect salts with an aperture less than 10 angstrom without influencing other components. The concentrated waste water and waste liquid can be combined with reverse osmosis technology to improve the benefit of the concentrated liquid, improve the dissolution rate of the mineral elements, and improve the concentration degree and the recovery rate.

Description

Technical field [0001] The invention relates to powder preparation, in particular to a preparation method of concentrated and integrated medical stone superfine powder and 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 to a particle size of 3mm-5mm; the powder processing method uses a ball mill to grind into a fine powder of 25um to 38um. The preparation steps of the medical stone concentrate include crushing the crude medical stone, crushing the medical stone particles, soaking the medical stone ultrafine powder to dissolve the mineral elements, and concentrating the soaking solution. The concentration includes a normal concentration method, a nanofiltration (NF) method, a reverse osmosis (RO) method, and a dual method of nanofiltration (NF) and reverse osmosis (RO). The shortcomings of ordinary concentration methods ar...

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