US 4,789,477 AGranted

Arrangement for charging granular or pulp-like material to a container in which the material is processed

AssigneePurac AB

InventorTore H. Nordlund

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Abstract

The invention relates to an arrangement for charging granular or pulp-like material to a container of relatively large cross-sectional area with the aid of a conveyor, in a manner to maintain a constant, smooth level of material in the container. The arrangement includes a carriage which can be driven at least partially over the cross-sectional area of the container on a level above the level of material present therein. The carriage has mounted therein at least one pair of juxtaposed and mutually spaced feed means, arranged to impart to the material a component of movement in the same direction and each of the screw means being arranged to impart to the material a component of movement directed towards the interspace between the feed means. The carriage also has firmly mounted thereon means for guiding the material transported by the conveyor to a deposition location immediately above the interspace between the feed means and to place the material in the interspace, where the material is permitted to spread-out and to form uniformly a ridge-like zone which extends in the longitudinal direction of the feed means.

Claims3

Dependent claims

In an enclosure for laterally confining a large mass of granular or pulp-like material together with first conveyor means to introduce material into the upper portion of said enclosure, second conveyor means to remove material from the lower portion of said enclosure, and distribution means to distribute introduced material over the upper surface of said large mass, the improvement comprising that said distribution means includes:

(a) a carriage positioned in the upper portion of said enclosure,
(b) means to move said carriage over the upper surface of the mass in said enclousre,
(c) at least one pair of juxtaposed feed screws supported by said carriage, said feed screws:
(1) being disposed side-by-side in a horizontal plane and in a generally parallel relationship with each other,
(2) having an infeed section located adjacent one end portion of said feed screws which is adapted to receive material from said first conveyor means,
(3) having means to rotate adjacent feed screws in opposite directions so that the material contacted by the helices of said feed screws will impart to the material a component of movement directed inwardly towards the space between adjacent screws and also a component of movement directed longitudinally away from said infeed section along the space between adjacent feed screws,
whereby the material introduced into said enclosure at one location by said first conveyor means will be spread out laterally from its point of introduction so as to achieve a large mass within the enclosure that has a smoother and more level upper surface.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 06/854,804Filed 23 Apr 1986
Priority: SE 850208829 Apr 1985
Granted: 6 Dec 1988
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

B65G 69/0433
Spreading out the materials conveyed over the whole surface to be loaded; Trimming heaps of loose materials: with screw conveyors
C05F 17/95
Apparatus therefor: devices in which the material is conveyed essentially vertically between inlet and discharge means
C05F 17/971
Constructional parts, e.g. floors, covers or doors: for feeding or discharging materials to be treated; for feeding or discharging other material
Y02P 20/145
Feedstock: the feedstock being materials of biological origin