Continuous mixing apparatus, system, and continuous mixing method for powder/granular material and viscous liquid

A continuous mixing method for a powder/granular material and a viscous liquid using a continuous mixing apparatus, the continuous mixing apparatus including:

• a mixing cylinder including:
• a powder/granular material feed port on a first end portion,
• a mixed material discharge port on a second end portion, and
• a viscous liquid injection unit disposed between the powder/granular material feed port and the mixed material discharge port;
• a shaft member disposed on a central axis of the mixing cylinder and configured to rotate inside the mixing cylinder;
• and
• a plurality of mixing paddles disposed on a surface of the shaft member so as to form a spiral around the central axis in a rotational direction of the shaft member, the plurality of mixing paddles being, in at least a portion between the viscous liquid injection unit and the mixed material discharge port, attached so as to alternately provide a first row having an attachment angle of 5° to 60° from a direction of the mixed material discharge port with respect to the central axis, and a second row with an attachment angle of −5° to 5° with respect to the central axis,
• the method comprising:
• loading the powder/granular material from the powder/granular material feed port;
• injecting the viscous liquid from the viscous liquid injection unit;
• while rotating the shaft member to mix the powder/granular material and the viscous liquid to form a mixed material, guiding the mixed material in the direction of the mixed material discharge port;
• and
• discharging the mixed material from the mixed material discharge port.