METHOD OF CLEANING MIXER PROVIDED WITH CIRCULATION OIL DUCT FROM VISCOUS-FLOW EXPLOSIVE COMPOUNDS Russian patent published in 2010 - IPC B08B9/27 

FIELD: process engineering.

SUBSTANCE: invention relates to production of articles from explosives, particularly to cleaning of mixers provided with circulation oil duct of residues of viscous-flow compounds. Proposed method consists in unloading explosive residues, loading calcium-chloride-base inert composition and mix of rubber with process additives, mixing loaded composition to idle load, feeding crushed rubber-base cleaning composition, mineral oil, aerosil and surfactant, mixing obtained composition in working and reverse rotational direction, diluting by mineral oil and unloading the composition from the mixer. Note here that, additionally, cleaning composition is diluted by 10-15% of mineral oil, and mixed for 10-15 min. The gate valve is opened to unload 1/3-1/2 part of composition from the mixer. Cleaning composition residues are diluted in mixer by 10-15% of mineral oil and mixed for 20-25 min with smooth mixer screw rpm variation to 1-5 min^-1. Now, gate valve is closed in circulation oil duct, gate valve is opened and cleaning composition is removed from the mixer to idle loads.

EFFECT: higher cleaning quality.

2 dwg