| 摘要 |
The device for conditioning the inner surface of a chemical tank by grinding, which device includes means for supporting the frame (19) of he device on the wall (3) of the tank and rotatable grinding means (33, 40) attached to the frame, is characterized in that said means for supporting the frame (19) essentially consist of three support legs (26, 30; 20a, 21; 20b, 21) at the end of which a roller (23) is attached, which is provided with a controlled motor drive (24, 25), for moving the device by means of them along the jacket (2, 3) of the tank according to teh control. In a preferred embodiment, the frame and the supporting means are divided to two parts one including one support leg with the accessories (26) and the other including the frame and other two supporting legs with the accessories (19, 20, 21, 22, 23, 24, 25, 32, 54).
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