TOBACCO CRUMBER WITH AUGER CONVEYOR SHAFT HAVING TWO SUPPORTS Russian patent published in 2011 - IPC A24B3/18 

FIELD: food industry, tobacco.

SUBSTANCE: tobacco crumber has a HP chamber that, in its turn, has an inlet hole for tobacco raw material on the LP side, an outlet hole with a clearance for thermal expansion on the HP side and a shaft-mounted auger conveyor for tobacco raw material transportation from the inlet hole to the outlet hole. The auger conveyor shaft is mounted on the inlet hole side and passes behind the outlet hole where it is equipped with one more support represented by a counter-bearing. The outlet hole with a clearance has the first outlet hole part attached to the HP chamber or to the outlet manifold and the second outlet hole part mounted on the shaft so that to be capable of rotation synchronously with it. For the clearance size adjustment the second outlet hole part may axially be locked in different positions on the auger conveyor shaft. Additionally, the invention deals with a tobacco crumbing method envisaging transportation of tobacco raw material from the inlet hole to the outlet hole with the help of the auger conveyor the both end parts whereof are mounted on the shaft whose operational rate may be as much as 600 min^-1.

EFFECT: invention enables reliable operation of the device in any operation mode, reducing the shaft wear and increasing tobacco raw material passage rate.

13 cl, 2 dwg