SU715412A1 - Apparatus for metering-out loose materials - Google Patents

Description

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The invention relates to devices for dosing bulk materials, in particular for volumetric dosing, and may find application in food, chemical and other areas of the national economy.

A device for metering bulk materials is known, which contains a hopper with a rotating disk with measuring containers | l installed under it. However, due to the absence of a forced supply of material to the measured cylinders, the metering unit performance and stable filling of the measuring cylinders with material that does not lead to significant errors in individual doses are not ensured. It should also be noted that the material in the dosing process is not hurtful, which can also lead to a significant variation in the individual ds due to the unstable porosity of the material.

The purpose of the invention is to increase the accuracy of dosing.

For this, the proposed device is equipped with a drive hollow shaft with blades fixed on it, mounted vertically in the bunker in the area of material discharge from it, and the bunker has a compartment for free material in measured containers with a fixed damper moving in the school plane. In addition, for the purpose of dosing materials of different flowability, the blades are attached to the shaft with the possibility of changing their drive angles. At the same time, the drive contains a rotatable vertical axis with a right and left threads at one end, on which the nuts are attached, connected by means of rods with blades, on one end of the shaft.

FIG. 1 shows the proposed device, the cut; in fig. 2 - section A-A of FIG. 1 | in fig. 3 shows a section EZ-B of FIG. one; in fig. 4 shows a section through ii-f3 of FIG. 2

Claims (3)

The device for dosing bulk materials consists of a silo disc 1, in which a disposable measuring tank 2 is placed in divided pitch 2, where the dosing material enters from the hopper 3. The bunker 3 is equipped with a compartment 4 of a free Dosyggka g, a damper 5 from it. In the bunker 3 there is a hollow shaft 6, in the lower part of which blades 7 are installed. In the center of the hollow shaft 6 there is a screw 8 with nuts 9. Nuts 9 are connected to the ends of the blades 7 using levers 10. A roller 11 is fixed on the shaft 6, which is in contact with the rotating disk 1. To prevent the dosing material from falling into the hollow shaft, it is equipped with a roller 12. The device operates as follows. From the hopper 3, the dosing material enters the replaceable measuring containers 2, which are installed in the rotating disk 1. The shaft 6 located in the bunker provides for the forced feeding of the dosing material into the measuring containers 2. Depending on the properties of the dosing material (angles of repose and collapse, flowability etc. The value of the angle of inclination of the blades 7 to the plane of the disk 1 is of great importance. The angle of rotation of the blades 7 is set to 7x: with the screw 8, which has on one block threaded sections with 11} that and fishing for which The nuts are 9. The blades are fixed under). The angle of the coal is made by turning the screw 8 in the opposite direction. This ensures the convergence of the nuts 9, and the levers 10 are desiccated by pressing the cone-shaped ends of the wiping blades against the walls of the hollow shaft 6. The material to be dosed, which is 715412 blunt into the oat 4 from the hopper 3, is regulated by means of a flap 5 movable in the vertical direction. The invention makes it possible to stabilize the dybying process and increase the productivity of the dosing unit. Claim 1. A device for dosing bulk materials, containing a hopper with a rotating disk with measuring e-bones installed under it, which is designed so that, in order to improve the accuracy of dosing, it is equipped with a drive hollow shaft with blades fixed on it installed vertically in the bunker in the zone of material discharge from it, and the bunker has a compartment for free filling of material into dimensional containers with a control valve moving in a vertical plane. 2. The device according to claim 1 is distinguished by the fact that, in order to charge materials of different flowability, the blades are fixed on the shaft with the possibility of changing their tilt angles from the drive. 3. The device according to claim 2, characterized in that the drive contains a rotatable vertical axis installed in the hollow shaft with right and left threads at one of its ends, on which the nuts are connected, connected via rods to the blades. Sources of information taken into account in the examination 1. Prozorovsky V. V. Modern volumetric dosage of bulk materials and their management systems. M., TsNIIITEI, 1973, p. 19, 2O, rzh :. 6 (prototype). , 715412 L F R one phage. {  - 7