INSTALLATION FOR DOSING OF BULK MATERIALS Russian patent published in 2022 - IPC F27D3/10 G01F11/00 B65G65/30 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to an installation for dosing bulk materials directly from bunkers or troughs. The installation contains a hopper, a dispenser drive and a control system, while the dispenser contains fixed lower and upper parts and a movable gate mounted between the mentioned parts of the dispenser, inlet and outlet openings are made in the fixed parts of the dispenser, ensuring that when they are alternately combined with the measured volumes made in the gate valve, the movement of bulk material from the hopper into the packaging material, at the same time, the diameter of the measured volumes of the gate valve is made smaller than the diameter of the outlet openings in the lower part of the dispenser with the possibility of eliminating the remnants of bulk material in measured volumes, the distance between the outlet openings is twice the distance between the measured volumes, and the distance between the inlet openings is equal to the distance between the outlet openings, the hopper is divided into equal containers for bulk material, the number of which is equal to the number of measured volumes when they are mounted to the dispenser according to the scheme 1-2-2…2-2-1, that is, one hopper capacity to the extreme inlets and two to the remaining inlets, with the possibility of simultaneous termination of bulk material in all containers with its equal initial volume, while the total mass of the product to be filled is defined as m_z =n∙m_y, where m_z is the total mass of the material to be filled into the hopper containers, n is the number of packages for packing, m_y the nominal mass of the product in one package, the hopper tanks are connected to the dispenser by means of valves, the dispenser drive is made in the form of an oscillating system consisting of a spring accumulator with a mass connected on both sides with compression springs, the spring accumulator is made in the form of a pair of pneumatic cylinders with double-sided rods and return springs located on both sides of the gate and the rods connected to it with the possibility of alternating action on the gate and moving it from one extreme position to another, at the same time, the time of movement t of the measured volume from one extreme position to another is defined as , where m is the mass of the gate valve or plunger plus the mass of the doses being moved, is the maximum displacement of the gate from the middle position, T is the oscillation period of the gate valve, c is the stiffness of the spring, the control of the dispenser drive is carried out from the control unit, while the stroke of the rods of the pneumatic cylinders of the drive is adjustable with the possibility of limiting the displacement of the gate to exclude mismatch of the inlet and outlet openings with the measured volumes.

EFFECT: reduction of energy costs and increase of reliability of the installation for dosing of bulk products is provided.

7 cl, 7 dwg