DEVICE FOR PRODUCING FODDER GRANULES FROM STALK MASS Russian patent published in 2017 - IPC A23K40/00 

FIELD: agriculture.

SUBSTANCE: device is described, including hoppers for loading raw materials, a raw material pre-treatment module, comprising screw elements with perforated surfaces, an extruder module, and a module for treating and drying granules. The raw material pre-treatment module has a cutting element for the stalk mass, made in the form of helical scissors, mounted of a rotating external helical perforated rotor with helical lower blades of one constant pitch and a rotating internal helical rotor with helical top blades of another constant pitch, arranged inside it. The external helical perforated rotor is equipped with helical lines and is made around the perimeter in the form of a multi-threaded helical perforated surface with helical grooves inside in the form of curvilinear pockets with the curvature centres of the curvilinear pockets, arranged inside its cross-section, and is made of three or more identical perforated strips of the rectangular form, twisted in the longitudinal direction with respect to the longitudinal axis and curved along the helical line in the transverse direction on a cylindrical mandrel, with forming on the perimeter of the external helical rotor three or more perforated internal curved surfaces of the convex shape with curvature centres within the external helical rotor and forming inside it overlaps in the form of helical lower blades of the helical scissors along the entire length from the inlet to the outlet. Along the entire length of the outer helical perforated rotor, an internal helical rotor is mounted, made around the perimeter in the form of a hollow cylindrical helical surface with external overlaps in the form of helical upper blades of the rotary helical scissors along the entire length of the helical surface made of three or more identical rectangular-shaped strips folded in the vertical plane in the longitudinal direction and curved along the helical lines in the transverse direction on a cylindrical mandrel and connected to each other with forming outside, around the perimeter of the helical surface, overlaps in the form of lower blades of the rotary helical scissors along the entire length of the curved helical surfaces, in the form of helical grooves of the concave shape with respect to the helical surface axis of the internal helical screw rotor with curvature centres arranged outside the cross-section of the helical surface of the internal helical rotor. The extruder module is made in the form of a screw arranged in a perforated housing, with a shaft having a diameter increasing towards the expansion chamber to which a cone-shaped mouthpiece with an inner surface arranged along a helical line and a die attached to its smaller base is connected with its larger base. The module for treating and drying granules is made in the form of a rotating perforated conical drum, is mounted around the perimeter from six or more perforated strips of the trapezoidal shape with different sizes by width, with their increase in length, folded in the vertical plane in the longitudinal direction with respect to their longitudinal axes, curved in the transverse direction along helical lines on a conical mandrel and bent along the areas of a weakened section-notch with chamfered walls made by means of milling or pressure treatment, arranged on the perforated strips at an angle of 60° alternately one to the other on both sides of the perforated strips, forming along the perimeter helical lines and helical perforated surfaces with the variable pitch, directed towards each other, these surfaces being arranged along multi-thread helical lines and equipped with a device for supplying and discharging hot gases, wherein each module is equipped with an individual drive.

EFFECT: expanding technological capabilities, simplifying manufacturing and reducing energy costs.

31 dwg