US 4,619,531 A · Batching plant

Abstract

This invention relates to a batching plant for particulate materials including batching of finely divided material such as cementitious (e.g. cement and flyash) and denser material such as aggregate which may include sand, screenings and gravel. The batching plant includes batching means for batching of the denser material such as one or more weighing hoppers. There also is included conveying means such as a belt conveyor for transfer of batched dense material from the batching means to a discharge location or housing. Storage means for the finely divided material is also provided such as a storage bin having a discharge outlet. There also is included a pressurized batching vessel for finely divided material discharged from the storage means which suitably is provided with means for creating a fluidized bed in the pressurized vessel. There also is provided closed system means for transferring batched finely divided material to the discharge location or housing such as a conveying conduit communicating with the pressurized batching vessel. The finely divided material is fluidized within the pressurized batching vessel and transferred through the conveying conduit in dense phase conditions to the discharge location.

Claims16

Dependent claims

A mobile batching plant for particulate materials including batching of finely divided material and denser material including:

(i) at least one weighing hopper having a discharge opening;
(ii) belt feeding means located below said discharge opening for transfer of batched denser material;
(iii) conveying means located adjacent to said belt feeder means for collection of the batched denser material and transportation thereof to a discharge location;
(iv) an elevated storage bin for finely divided material having a discharge outlet;
(v) a pressurized batching vessel directly below and communicating with said discharge outlet having inlet valve means for sealing said pressurized batching vessel from the storage bin;
(vi) means for fluidizing finely divided material introduced into the pressurized batching vessel;
(vii) a delivery conduit extending into the interior of the pressurized batching vessel for conveying batched finely divided material in dense phase from the batching vessel to said discharge location separately from and independently of said particulate material;
(viii) valve means associated with the delivery conduit for closing or opening same;
and,
(ix) a mobile chassis supporting at least components (iii), (iv) and (v) wherein the conveying means extends longitudinally of said mobile chassis and components (iv) and (v) are located adjacent to and spaced laterally of the conveying means.

7 more elements

Dependencies are inferred from the claim text.

Batching plant

Life of this patent

Batching plant

Life of this patent

Abstract

Claims16