Provided is a mixing apparatus. The mixing apparatus comprises a housing defining a primary chamber, an inlet for receiving material into the mixing apparatus, as well as an outlet for discharging material from the mixing apparatus. The housing provides within the primary chamber a plurality of rotating shafts, each rotating shaft having a plurality of flailing fixtures associated therewith.

A method for preparing direct melt-spun high-viscosity PBAT/low-viscosity PET two-component elastic fiber and a high-viscosity PBAT polymerization reactor. This method uses two production lines respectively used to produce a high-viscosity PBT melt and a low-viscosity PET melt, which are then spun. The high-viscosity PBAT production line comprises a first esterification reactor, a second esterification reactor, a first prepolymerization reactor, a second prepolymerization reactor, and a high-viscosity PBAT polymerization reactor. The polymerization reactor is designed with a special disc structure in a parallel two-shaft disc reactor, and the two shafts are rotated in opposite directions, improving the devolatilization effect and self-cleaning, significantly increasing the viscosity. By using this method, the cost is low and the production capacity is high, the process flow is shortened, the fiber strength can reach 2.552.85 cN/dtex, the crimp shrinkage rate can reach 25%60%, and the crimp stability can reach 58%70%.

A hand-operated construction mixer, such as a hand-operated stirring machine for stirring and/or mixing construction materials, has a housing and a drive motor accommodated, at least on part, in the housing interior. The drive motor has at least one drive shaft, which is operatively connectable directly or indirectly to a mixing and/or stirring tool. An actuating device is provided, by way of which the drive motor is actuatable. The drive motor, preferably controlled via a control device coupled to the actuating device, is suitable and configured to provide a rotational speed, preferably a load rotational speed, at the drive shaft driving the mixing and/or stirring tool in a range from 200 rpm to 1000 rpm, preferably from 250 rpm to 750 rpm, most preferably from 300 rpm to 650 rpm.

An internal mixer includes a mixing chamber having a mixing room, a material input portion that is located above the mixing chamber, a pair of mixing rotors configured to knead a material to be kneaded in the mixing room, a weight disposed in the material input portion so as to be capable of pressing the material to be kneaded in the mixing room from above, a hydraulic circuit having a hydraulic cylinder connected to the weight, and a controller that controls the hydraulic circuit to perform a pressing motion of supplying hydraulic oil to the hydraulic cylinder so that the material to be kneaded is pressed by the weight and a motion for suppressing rapid rise of limiting an operation of the hydraulic cylinder so as to suppress an upward moving speed of the weight when the pressing motion is canceled.

An internal mixer includes a mixing chamber having a mixing room, a material input portion that is located above the mixing chamber, a pair of mixing rotors configured to knead a material to be kneaded in the mixing room, a weight disposed in the material input portion so as to be capable of pressing the material to be kneaded in the mixing room from above, a hydraulic circuit having a hydraulic cylinder connected to the weight, and a controller that controls the hydraulic circuit to perform a pressing motion of supplying hydraulic oil to the hydraulic cylinder so that the material to be kneaded is pressed by the weight and a motion for suppressing rapid rise of limiting an operation of the hydraulic cylinder so as to suppress an upward moving speed of the weight when the pressing motion is canceled.

An extruder includes: a supply module; a mixing module to form an electrode slurry by mixing an active material, a binder, and a conductive material from the supply module; a discharge module to discharge the electrode slurry; and a sensor to measure a characteristic value of the electrode slurry. The mixing module includes a first screw and a second screw, the first screw and the second screw including screw threads on an outer circumference thereof to rotate to engage with each other; a barrel including a first barrel and a second barrel accommodating the first screw and the second screw, respectively, and facing each other to form a hole through which the electrode slurry is transmitted; a first gap adjustment module to adjust a gap between the first barrel and the second barrel; and a control module to control the first gap adjustment module based on the measured characteristic value.

An extruder includes: a supply module; a mixing module to form an electrode slurry by mixing an active material, a binder, and a conductive material from the supply module; a discharge module to discharge the electrode slurry; and a sensor to measure a characteristic value of the electrode slurry. The mixing module includes a first screw and a second screw, the first screw and the second screw including screw threads on an outer circumference thereof to rotate to engage with each other; a barrel including a first barrel and a second barrel accommodating the first screw and the second screw, respectively, and facing each other to form a hole through which the electrode slurry is transmitted; a first gap adjustment module to adjust a gap between the first barrel and the second barrel; and a control module to control the first gap adjustment module based on the measured characteristic value.