SU1381334A1 - Device for batching loose material - Google Patents

Abstract

The invention relates to feeders where materials with high humidity and adhesion are used. The purpose of the invention is to increase the stability of the technological process of feeding with clay granules. When the material level in the hopper 8 rises above the location of the lower level sensor 22, the latter switches off under the influence of the material and breaks the electrical circuit of the control unit 27. When the upper sensor 22 is turned on, when the hopper 8 is already full and the pressure button is under the load of the material, electr. the circuit is closed, the relay is activated, the electrical circuit of the control unit 27 is closed, the valve is raised and the material loading is stopped. 4 il.

Description

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The invention relates to feeders, in particular for clay bulk materials, and can be used in the building materials, chemical and other industries where materials with high humidity and adhesion are used.

The purpose of the invention is to increase the stability of the technological process of feeding with clay granules.

FIG. 1 shows the proposed disk feeder, top view; in fig. 2 - the same, longitudinal section; in fig. 3 is an electrical control circuit for loading the hopper; in fig. 4 is an automatic control circuit for the performance of the feeder.

A device for dosing bulk material contains a vrach, ayush, yy disk 1 with a cylindrical protrusion 2 in the center and a fence 3. The electric motor 4 moves the knife 5 by means of a screw 6 and a lever 7. The bunker 8 has a collar 9 on the upper base, on which the ring 10 is supported on rollers 11. A central tube 12 with windows is vertically mounted on the disk and connected with scrapers 13 fixed on radial elements 14 using spacers 15 and 16 and fastening locks 17. An electrical insulating pipe 18 is placed inside the central pipe 12 with contacts 19 completed These are in the form of rings with leads 20. An electrically insulating tube is mounted on bearings 21 inside a central tube 12, in the windows of which diaphragm contact level gauges 22 and a moisture content sensor 23 are mounted.

A flow meter is installed below the exit window of the enclosure, including a mechanical assembly 24 and a magnetoelectric device 25 to which the reversing drive electric motor 4 is connected via control device 26. The engine 4 is installed on the plate 27.

The spacers 15 and 16 are fixed on the pipe 12 using couplings 28.

At the upper end of the electrically insulating tube there is a hemisphere 29 with an opening 30 for the end leads.

The mechanical assembly of the flow meter is made, for example, in the form of a lock drum 31 connected to an electro-machine current generator 32.

The reversing drive also contains a screw 6, a lever 7 with a thickened part 33 and a gearbox 34 connected to the screw coupling 35. The knife is connected to the lever by the hinge 36, and the lever has a multi-hinge 37 at one of its ends.

The bunker support is, for example, the support frame 38. The level control circuitry uses control unit 39 (two-disk electromechanical control unit), lifting damper actuator 40, current converters 41, electromagnetic relays 42 with electrical contacts 43. The disk 1 is connected to the actuator 44 .

The feeder works as follows. By turning on the electric motor 4, the knife 5 is mounted on the disk 1 in a position corresponding to the capacity of the feeder of clay granules of normal humidity in accordance with the required performance. Turning off the motor 4 switches it to automatic mode. The actuator 44 is turned on. A disk 1, a vertical pipe 12, scrapers 13 with tubes 14, a movable ring 10 come into rotation. Level sensors 22 and moisture content 23 also rotate with pipe 12. While the hopper is not loaded, low level sensor 22 is turned on, i.e. its contacts close the electrical circuit with ring contacts 19 placed on electrically insulating pipe 18 that are connected to block 39 controlling a flow flap 40 directing the flow of clay granules from a reversible conveyor belt

0 into the hopper 8, while the upper level sensor 22 is disconnected. Until the granules enter flow meter 24, the lock drum 31 does not rotate. The electric current generator 32 does not generate electric power, the needle of the magnetoelectric device 25 is in the zero position, and a movable electric contact coupled with it closes the signal circuit of the absence of clay granules in the feeder. The clay semi-finished product enters the flow meter 24. Under the influence of the falling material, the lock drum 31 begins to rotate, the generator 32 generates an electric current, the needle of the magnetoelectric device 25 moves, and the electrical contact of the device 26 switches to the lower performance limit. The motor 4 is turned on, the screw 6 is rotated, and the lever 7 rotates the knife 5 to a position corresponding to a higher performance until a constant flow of granules is established corresponding to the desired performance.

When reducing the flow of granules into the flow meter, for example due to an increase in the moisture content of the granules, the knife 5 moves in the opposite direction in the same way and the feeder capacity increases to the desired value.

The level sensors 22 control the position of the lift valve 40 through the control unit 39. When the lower level sensor 22 is turned on, when there is no material load on the diaphragm, the electrical circuit is closed, the electromagnetic relay 42 is activated, the electrical circuit of the control unit is closed by electrical contacts 43, the damper is lowered to the conveyor circuit.

5, the tape and the clay granules are sent to the hopper 8, and the control unit 39 is automatically turned off. With the material level rising in the hopper 8 above the location of the lower level sensor 22, the latter is below

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load material is turned off and breaks the electrical circuit of the control unit 39. When the upper level sensor 22 is turned on, when the hopper 8 is already full and the sensor button is under the load of the material, the electrical circuit is closed, the electromagnetic relay 42 is activated, the electrical circuit of the control unit 39 is closed by electrical contacts 43, the flap rises and the material loading stops.

Claims (1)

Invention Formula A device for dispensing bulk material, containing a bunker with agitator, the radial elements of which repeat the shape of its walls, and a disc mounted on the axis of rotation under the bunker with a guard and an outlet window with a drop-down knife installed with a movement The aim is to increase the stability of the supply of materials prone to sticking, scrapers, rollers, a central tube with windows in which at least two diaphragm contact levels are installed radially are inserted into it, contacts each of which is made in the form of two rings rigidly fixed inside the pipe, a bulk material loading unit, a flow meter connected to a reversible drive, to which 0, a dumping knife is connected, while the bunker is made in the form of a rotating body with a collar in the upper base, with which the radial elements of the rotator are attached to the rollers, which are attached to the central tube mounted on the disk and provided with  scrapers, the flow meter is placed under the outlet window of the disk, the level gauges are connected to the bulk material loading unit in the bunker, and metal clamps for contacts are fixed on their diaphragms. Sv srigL 72