Handling
and Storage of Raw Materials
Chloride Technical and Trading
offer
equipment for the handling and storage of raw materials. A brief description of the
handling of lead oxide is shown below.
Oxide conveyors and elevators
1.0 Process
To convey lead oxide from an oxide mill or reaction pot to a storage bunker and then to a batch weighing unit.
2.0 Description
Screw Conveyor
A mild steel fabricated spiral, 153 mm dia x 153 mm pitch x 3 mm thick, welded to a central mild steel tube, complete with gudgeons at bearing points. 3 mm thick mild steel 'U' shaped trough with top flanges and joints, with 3 mm top bolted cover plate and fabricated mild steel end plates, all sealed.
 | Each end would be complete with the necessary seal and ball bearing unit. |
| Non-drive end bearing to be complete with mild steel square cover, bolted on. |
| Inlets and outlets, together with supports, would be as specified for each individual item. |
| The drive gear would incorporate a T.E.F.C geared motor unit. |
This unit would be mounted on an adjustable mild steel fabricated drive base and complete with the necessary short pitch chain drive and mild steel guard suitable for manual-lubrication only.
| Approximate screw speed 63 r.p.m. |
| Supports to be indicated against each individual item. |
Vertical Screw Elevator
The details for each would comprise:-
A fabricated mild steel spiral, 3 mm thick with a tapered section at elevator boot from 254 mm dia to 150 mm dia followed by 150 mm dia x 153 pitch for the remainder of the elevator and mounted on a mild steel central shaft.
The shaft would be in sections where necessary with machined and bolted sleeves at the intermediate bearing points. Also at this point, the spiral would be thickened to 6 mm, the bearing section flanged and complete with stainless steel wear strips and three machined jacking screws. The spiral would be housed in a tubular outer casing, with machined joint flanges, all sealed as necessary. An outlet is included in the top section and an inlet in the outer conical section at the elevator boot.
Top and bottom bearing sections are included with the necessary machined housings, ball bearing units, thrust race and seals.
The whole unit would be mounted on fabricated channel base with machined drive mounting and the main casing complete with support brackets.
The drive would incorporate a flange mounted T.E.F.C. motor, 720 rpm output speed and being to the same specification as indicated for the screw conveyors. The final drive would be via a Fenner 'V' rope drive to the elevator drive shaft.
Approximate elevator speed 280 r.p.m.