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US 2011/0253601 A1Published application
Air jet sieve device
AssigneeHosokawa Alpine Aktiengesellschaft
InventorsHans Kaiser, Georg Konetzka, Markus Schonwetter
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AssigneeHosokawa Alpine Aktiengesellschaft
InventorsHans Kaiser, Georg Konetzka, Markus Schonwetter
Estimating the term…
The invention relates to an air jet sieve device having a housing, at least one sieve for insertion in the housing, a sieve deck and chamber located below the sieve, a slotted nozzle beneath the sieve deck, a drive for the slotted nozzle, an air inlet to the slotted nozzle, an air outlet through the housing and out of the chamber located beneath the sieve deck, and a control unit to control operation of the device. The invention also relates to a method that permits not only detection of the sieving progress during a sieving process but also provides a criterion to permit establishing the sieving time. This is achieved by equipping the sieving machine with a measuring sensor through which the particles in the air outlet flow are detected triboelectrically and which are correlated with the sieving progress to permit establishing the sieving time.
An air jet sieve device having a housing, at least one sieve for insertion in the housing, a chamber beneath the sieve, a slotted nozzle beneath the sieve, a drive for the slotted nozzle, an air inlet to the slotted nozzle and an air outlet through the housing and out of the chamber wherein an air flow is established between the air inlet and air outlet, a control unit for operation of the air jet sieve, and a measuring sensor for triboelectrically detecting particles in the air flow.
In an air jet sieve device, the improvement which comprises establishing a sieving time for operation of the device by detecting particles in an air flow of the device, and correlating the detected particles with sieving progress.
Dependencies are inferred from the claim text.