DEVICE FOR GROWING CRYSTALS FROM SOLUTION AT CONSTANT TEMPERATURE Russian patent published in 2022 - IPC C30B7/04 C30B35/00 C30B29/14 

FIELD: growing monocrystals.

SUBSTANCE: device relates to production of artificial monocrystals at constant temperature, for example, crystals of KDP (potassium dihydrogen phosphate), DKDP (potassium deuterophosphate), TGS (triglycine sulphate). Device for growing crystals from a solution at a constant temperature comprises a crystallizer with crystallization cup 1, equipped with cylindrical cover 2, on which solvent condenser 3 is hermetically installed, and in cover 2 on the side of condenser 3 there is annular groove 5 forming a cavity for collecting the solvent, wherein the cavity of annular groove 5 is hydraulically connected to the cavity of crystallization cup 1 through first line 6 connected to the input of the adjustable peristaltic dosing pump 7, discharge side of which is connected via second line 8 to dropper 9, made integral with third line 10 or separately from it, connecting dropper 9 with the bottom part of the solvent collection vessel 11, which is connected through the fourth air line 13 to tank 14 for feed solution 15, bottom part of which is connected by fifth hydraulic line 16 with channel 17 in cover 2 of crystallization cup 1, opening into its cavity, wherein fourth air line 13 is connected by sixth line 18 to correcting pump 19, and tank 14 for working feed solution is equipped with heater 20. Correcting pump 19 is of peristaltic type.

EFFECT: disclosed simple design of the device provides a constant level of the working solution and prevents parasitic crystals in the crystallization cup.

1 cl, 2 dwg