Back to results
US 7,882,958 B2Granted
Drum sieve machine
OwnerJohann L. Doppstadt, Horst L. Bergerinventors
Life of this patent
Estimating the term…
Abstract
A trommel screen machine including at least one revolving screening drum, at least one drive for the screening drum, a feeding hopper as well as at least one collecting device, such as a transport device, for collecting and transporting the screened good. In front of and/or on the trommel screen machine at least one disc screen is arranged which screens a defined grain, in particular oversized particles.
Claims23
Trommel screen machine, comprising
- at least one revolving screening drum,
- at least one drive for the screening drum,
- a feeding hopper located on a side of the screening drum,
- at least one disc screen located upstream from the feeding hopper, directly vertically above the feeding hopper and completely covering the feeding hopper for dropping already screened product into the feeding hopper, said at least one disc screen being at a height vertically above the screening drum, and the at least one disc screen being at an angle with respect to a transport direction of goods through the screening drum and through the feeding hopper,
- said at least one disc screen having a first end and a second end, said first end being located adjacent to the screening drum, said second end being spaced from said screening drum and being at a higher elevation than said first end,
- said feeding hopper feeding goods screened by the at least one disc screen to the at least one screening drum,
- a first collecting and transport device for collecting and transporting screened undersized goods from the screening drum,
- a second collecting and transport device for collecting and transporting predetermined sized goods from the at least one screening drum,
- a third collecting and transport device for collecting and transporting screened oversize goods from the at least one disc screen.
6 more elements
A trommel screen machine comprising
- a disc screen for receipt of screening goods,
- a feeding hopper, said disc screen being mounted on the feeding hopper directly above the feeding hopper and completely covering the feeding hopper for passage of screening goods from the disc screen to the feeding hopper,
- a screening drum connected to the feeding hopper for conveying screening goods in a first direction through the screening drum and for receipt of screening goods from the feeding hopper, the feeding hopper being located on a side of the screening drum,
- said at least one disc screen having a first end and a second end, said first end being located adjacent to the screening drum, said second end being spaced from said screening drum and being at a higher elevation than said first end,
- a first collecting and transport device located below the screening drum for receipt of screening goods from the screening drum,
- a second collecting and transport device connected to the screening drum for receipt of screened goods based on a size of openings of the disc screen, and
- a conveying device for receipt of oversized particles moving in a second direction from the disc screen, said second direction being opposite to said first direction.
4 more elements
Dependencies are inferred from the claim text.