Sand scrapers are designed to
remove sand and to push down floating elements from desander's chamber.
In sand scrapers equipped with pumps, the pumps suck in the pulp from
bottom of channel and over press it into next device located in
technological line of waste water treatment plants (gutter,separator,
etc.). In sand scrapers equipped with plows the sand is scraped into
funnel located in finishing zone of desander.
Principle of operation:
Waste water always consist also
of sand and other constant materials which are commonly called the
sand. This sand is stoped in desanders. Additional equipment of desander
is the sand scraper device.
Sand
scrapers are moved on concrete track or on track way. Supplying cable
is slung or is unwinded during scraper's running. Sand scrapers can
operate in automatic mode controled by time relays or in manual mode
controled from scraper's control box.
All sand scraper types are manufactured in different options (right, left) and are adjusted to customer's requirements.
Technical parameters:
- desander length L (m): according to requirements
- track of passable wheels:according to requirements (max up to 16 m)
- amount of pumps/plows: 1 do 5
- drive power [kW]: 0,37 ÷ 2,2
- power supply: 2 PEN 400 V, 50 Hz
- material execution: 1.4301
- control system: automatic / manual