FIELD: technological processes.
SUBSTANCE: invention relates to abrasive blasting. Pressure is applied under pressure to treated surface of abrasive in flow of compressed air with simultaneous supply of water vapor. Air-abrasive mixture flow formed at nozzle outlet of the apparatus by means of outlet nozzle is mixed with water vapor flow, which is pre-mixed with fine-dispersed foamed pearlite in separate mixing chamber. Mixing of air-abrasive mix and steam flow with perlite is performed by supplying mixture of steam with perlite through annular nozzle, which covers outlet nozzle of air-abrasive mix at outlet of nozzle. At that, ratio of abrasive volume to pearlite volume is within 25…40%.
EFFECT: higher efficiency of cleaning surfaces with reduced mechanical damage of cleaned surface.
1 cl, 2 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| TREATMENT METHOD OF STAINLESS STEEL SURFACE AFTER HEAT TREATMENT | 2020 |
|
RU2724211C1 |
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| METHOD OF ABRASIVE-JET CLEANING OF METAL SURFACES | 2010 |
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| METHOD OF CLEANING EXTERNAL SURFACE OF TUBULAR COILS INSIDE HEATING EQUIPMENT | 2019 |
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RU2714424C1 |
| SURFACE CLEANING DEVICE | 2004 |
|
RU2284231C2 |
| UNIT FOR AEROHYDRODYNAMIC ABRASIVE CLEANING OF SURFACES, NOZZLE TO THIS END (VERSIONS), AND METHOD OF AEROHYDRODYNAMIC ABRASIVE CLEANING OF SURFACES AND COMPOSITION TO THIS EFFECT | 2010 |
|
RU2450906C2 |
