Sewage treatment biological rotors
AssigneeKlargester Environmental Engineering Ltd.
InventorJohn L. Nicholson
Life of this patent
Estimating the term…
Abstract
A biological rotor for biomass treatment in a sewage treatment plant is erected from sector shaped packs removably attached between spider-like support assemblies each of which comprises a ring and radial channel-shaped arms. The packs include support members. One of the support members has its ends located in the channels of the arms and the other support members are clamped to the ring. A separator plate can be built up from sections formed in each pack.
Claims9
A method of assembling a biomass rotor from sector-shaped packs of preformed plastics sheets having (at least two) a triangular array of three rigid through-members penetrating all the sheets in the pack, comprising the steps of securing the packs between a pair of spider-like support assemblies each extending normal to the axis of a shaft to thereby constitute a coplanar pair and each including arranging a ring concentric with the shaft and extending radial arms inwardly from the ring towards the shaft, locating the radial arms in each pair of support assemblies in respective axial planes of the shaft, securing two rigid through members of each pack at each end to the respective rings of the pair, characterized by forming each of the radial arms as channel-shaped members with the channels in each coplanar pair opening towards one another to thereby confront each other and by locating ends of the remaining rigid through-member of each pack in the confronting channels of a respective axially coplanar pair of raidal arms.
A biomass rotor comprising a plurality of sector-shaped packs of preformed plastics sheets, each pack having three rigid through-members penetrating all the sheets in the pack, the packs being secured between a pair of spider-like support assemblies each extending normal to the axis of a shaft of the rotor to thereby constitute a coplanar pair, each support assembly including a ring concentric with the shaft and radial arms extending inwardly from the ring towards the shaft, the arms in each pair of support assemblies being located in respective axial planes of the shaft, two of the rigid through-members being secured at each end to the respective rings of the pair, characterized in that each radial arm is a channel-shaped member with the channels in each coplanar pair opening towards one another to thereby confront each other, the remaining rigid through-member of each pack having its ends located in the confronting channels of a respective axially coplanar pair of radial arms.
Dependencies are inferred from the claim text.