FIELD: machine building.
SUBSTANCE: invention relates to apparatus for cleaning surfaces. Apparatus comprises a housing including a reservoir for abrasive material and a first channel for a compressed air flow that passes close to the said reservoir along the entire length of the said reservoir. Apparatus comprises a mixing valve connected to the said reservoir for mixing the said abrasive material with the said compressed air.
EFFECT: long-lasting and constant spraying of the abrasive material is ensured.
8 cl, 19 dwg
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