SU1500582A1 - Screw conveyer for investigating loose material conveying process - Google Patents

Abstract

This invention relates to a lifting and transport machinery. The purpose of the invention is to improve the accuracy of measurements of the transportation process. The screw conveyor contains a frame on which the casing (K) is fixed with loading and unloading windows and screw 5. Made with hole 7 for introducing the coloring substance 8 located between loading and unloading windows tangentially to its inner surface. In the longitudinal through grooves 9, made K and displaced one relative to the other in the direction of rotation of the screw 5, are placed the valves 10, on one of the surfaces of which are easily painted material 11 directed inwards. During the rotation of the screw 5, bulk material is fed from the hopper into the loading window and screw 5 is transported to the discharge window. The dye 8 is absorbed by the particles of the transported material, fixing the particle trajectory in the form of marks on the easily-colored material 11. Then the shutters 10 are removed from the grooves 9. The axial velocity of the flow of the bulk material is determined by the parameters of the transportation process. 3 il.

Description

The invention relates to a lifting and transport engineering, in particular to screw conveyors, in particular to the study of the transport of bulk materials in them.

The purpose of the invention is to improve the measurement accuracy of the transportation process.

Fig. 1 shows a screw conveyor for examining the processes of transporting bulk material, a general view; figure 2 - section aa in figure 1; FIG. 3 shows a scan of the inner surface of the conveyor case with a path of movement of the material along the case.

The screw conveyor for investigating transport processes includes a bed 1 on which case 2 is fixed with loading 3 and unloading 3 windows and screw 5 placed in it. The latter is connected to the electric motor 6 by means of a transmission. In the casing 2 there is a hole 7 for the introduction of the coloring matter 8, located between the loading and unloading windows tangentially to the internal fluid.

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the surface of the casing, as well as two longitudinal through grooves 9, displaced from each other in the direction of rotation of the screw. In the longitudinal grooves 9, flaps 10 are placed, on one of the surfaces of which light-paint material 11 is fixed, directed towards the inside of the casing 2. Above the casing 2 there is a bunker 12 for feeding the material into the loading window 3, and a receiving container 13 is located near the discharge window 4.

A screw conveyor for investigating transport processes works in the following way,. The electric motor 6 is turned on, which transmits rotation through screw to screw 5, the bulk material from hopper 12 is fed into loading window 3, screw 5 is transported to discharge window 4 and enters receiving container 13. During transport through hole 7 into: left material contacting with the inner surface of the casing, the dye 8 is introduced, which is absorbed by the particles of the material being transported, fixing the trajectory of the particles in the form of marks on the easily painted material 11.

After the motor is turned off, the shutter 10 is removed from the grooves 9 and the relative one is determined (the placement of the marks in the direction of the transport axis ih. The axial

the speed of movement of the bulk material. according to the formula

V (NO - w) R tg y,

where (- angular rotational speed

screw;

It) is the angular velocity of rotation of the material

R is the radius of the inner surface of the casing;

-y - the angle of the screw helix.

Claims (1)

Invention Formula A screw conveyor for examining the processes of transporting bulk material, including the frame, to the coco; The second has a casing with a screw located in it, loading and unloading windows, and an electric motor with a transmission, characterized in that, in order to improve the measurement accuracy of the transportation process, it is equipped with valves, on one of the surfaces of which are easily painted material, and the casing Completed with a hole for the introduction of a coloring material, located between the loading and unloading windows tangentially to its inner surface, and longitudinal through slots that are displaced one relative to the other. th in the rotational direction of the screw, which has a flap legkookraschivae- by direct material into the housing. V & -Y 0ue.f Mamepua / i Trajectory 2