| 摘要 |
<p>Apparatus for ohmic heating of an electrically conductive flowable medium comprises pipe means (9) through which such a medium can be arranged to flow, and at least two electrodes (21) spaced apart in the pipe means insulating shield members (211) to reduce current density at the electrode edges, and means (25, 26, 27) movable in said pipe means for dislodging material deposited from said medium on the electrodes (24) and on the interior of the pipe means in use, which may be a scraper which comprises a plurality of scraper members (26, 27) spaced lengthwise of the pipe means connected to a reciprocable carrier member (25), a portion of which extends from the upstream end of the pipe means and is connected to the means (32, 33) for producing reciprocation of said scraper members.</p> |
