| 摘要 |
<p>The invention discloses a kneader for the preparation of paper stuff comprising: a substantially cylindric tank (2; 120) having on the internal wall vertical ribs (21) able to interrupt the rotation of the stuff stream; a rotor (13; 130) having a vertical axis (X; Y) located inside said tank (2; 120) and provided with blades (32; 132) spiral shaped. The external edge of each said blade presents a holding wing (34; 134) which is continuous and oriented towards the bottom of the tank and said wing develops itself from the beginning of each blade, starting from the rotor part farthest from the bottom, ending almost at one turn before the end of the spiral on the bottom.</p> |
