RU32116U1 - The machine for the distribution of alumina to the hoppers of the automatic feeding of alumina aluminum electrolyzer - Google Patents

Description

2062132458

(1Ш№Ш

MKI: S25SZ / 14

Machine for the distribution of gliozem into bins of automatic feeding of gliozem aluminum

The proposal relates to the metallurgy of non-ferrous metals and can be used for the distribution of bulk materials, such as fluoride salts or alumina, into an aluminum electrolyzer.

A known machine for distributing bulk materials into an electrolyzer containing a hopper with a feeder in the form of a screw, a loading unit made in the form of a screw, and a self-propelled chassis. The casing (coarse) of the auger of the loading unit is made telescopic to ensure possible maintenance of various electrolyzers, as well as to reduce the size of the machine in the transport position (AS, USSR No. 729285, class C25C 3/14, 1977).

A disadvantage of the known machine is the low productivity due to the large loss of time for the extension and retraction of the casing of the auger of the loading unit.

Closest to the proposed machine is a machine for transporting and loading bulk materials into an electrolyzer (AS USSR No. 1138435, KL.С25С 3/14, 1985) (2). The machine comprises a hopper with a feeder in the form of a screw, a loading unit made in the form of a screw and installed with the possibility of rotation around a horizontal axis coinciding with the axis of the feeder screw.

A disadvantage of the known machine, adopted for protspeep, is the inability to load bulk material into ai5 hoppers

electrolyzer.

alumina feed (APG) mounted on the anode casing of an aluminum electrolyzer and lack of dosage.

The objective of this proposal was to increase the technical and economic indicators of the machine.

The technical result of the proposal is the provision of the possibility of a metered loading of bulk material in silos.

The technical result is achieved by the fact that in a machine containing a hopper with a feeder, made in the form of a screw installed in the casing under the hopper on a self-propelled chassis, a distribution unit made in the form of a rotary screw installed in the casing with inlet and outlet nozzles, and a unit control, installed in the operator's cab, the outlet pipe of the rotary screw of the distribution unit is made in the form of a guide tray attached to the end part of the casing with the possibility of pointing it to the alumina automatic feed hopper, and in the control unit eniya set RPM reference node associated with a screw speed sensor mounted on the shaft of the feeder screw or dispensing assembly.

Sush, the essence of the proposal is as follows. Since the upper edge of the loading nozzle of the АПГ bunker is located at the level of the upper edge of the anode casing, the screw of the dispensing unit must ensure that the bulk material rises to this level, and then load it into the АПГ bunker through the guide tray. / 1, to reduce the dusting of bulk material at the time of loading, the tray is proposed to be made in the form of a pipe.

In addition, the proposed machine provides a metered load of APG bunkers, which significantly increases the efficiency of the machine due to the fact that underloading of bunkers increases transport costs for delivering raw materials to the bunkers, and overloading leads to losses and contamination of the anode surface.

Common features of this proposal and the prototype are the following features.

The presence of a hopper with a feeder in the form of a screw installed in a casing under the hopper on a self-propelled chassis, a distribution unit made in the form of a rotary screw installed in a casing with inlet and outlet nozzles and a control unit installed in the operator's cab.

The difference lies in the fact that the outlet pipe of the rotary screw of the distribution unit is made in the form of a guide tray attached to the end part of the casing in the form of a pipe with the possibility of pointing it to the alumina automatic feeding hopper.

Another difference is that in the control unit there is a set for adjusting the speed of the screw connected to the sensor of speed of the screw installed on the shaft of the feeder or distribution unit.

Given the above, we can conclude that this proposal meets the eligibility condition of the utility model

novelty.

A prototype of the machine was made, which successfully passed the industrial tests. Consequently, the proposal meets the eligibility requirement of industrial applicability.

The proposal is illustrated by the drawing, where FIGL shows a general view of the machine, Fig.2 is a side view, Fig.3 is a control diagram of the operation of the screw.

The machine contains a hopper 1 with a feeder made in the form of a screw 2, mounted in a casing 3 under the hopper 1 on a self-propelled chassis 4, as well as a distribution unit made in the form of a screw 6 rotary by means of a drive 5 installed in the casing 7 with an input 8 and output 9 nozzles. The outlet pipe 9 is made in the form of a guide tray 10 attached to the end part of the casing 7, which can be made in the form of a pipe.

In the control unit installed in the operator’s cab 11, a unit for setting the ultrasonic rotation of the screw 2 or 6 is provided (see Fig. 3). The ultrasound reference unit is connected to the RPM sensor of the screw 2 or 6 through the SN pulse counter and the UVI counting pulse generation unit on the one-and-one side, and on the other hand is connected to the indication unit of the UI and the power unit of the control unit. The speed sensor DO is installed on the shaft 12 of the screw 2 or on the shaft 13 of the screw 6 (not shown in the drawing). The start-up of the system is provided by the control unit of the control unit, connected with the unit for the formation of counting UHF impulses and the SI pulse counter.

The machine works as follows. Having approached the next electrolyzer 14, the operator with a drive 5 transfers the screw 6 of the export position (shown by a dotted line) into the working one and combines K with the inlet pipe of the hopper АПГ 15.

Next, the operator works with the control panel. Having set the task unit for the ultrasonic operator to the required number of revolutions, which the screw 2 or 6 must make, he gives the command to the control unit У У to start. The RPM RP sensor installed, for example, on the shaft 12 of the screw 2, transmits RPM pulses to the UVI counting pulse generation unit, which leads them to the standard form and transfers to the SI pulse counter input connected to the ultrasonic reference unit and the MD display unit. Pulses processed in such a way from the RPM sensor are compared with a predetermined number of revolutions recorded on the ultrasound task node. If the number of revolutions of the auger coincides with the set one, a command is issued to turn off the augers and intermittently turn on the signal lamp.

Having filled the hopper 15, the operator transfers the screw 6 from the working position to the transport and brings the machine to the next hopper. Next, the download process is repeated. Thus, the proposed efficiency of its work is that it provides APG. Head Patent and Licensing Department of OJSC S IBV Leading engineer-patent specialist of OJSC machine greatly increases the load on the load b / n. T. Stepanov i /). N. Gryaznova

Claims (2)

1. A machine for distributing alumina to hoppers for automatically feeding alumina from an aluminum electrolysis cell, comprising a hopper with a feeder made in the form of a screw mounted under the hopper on a self-propelled chassis, a distribution unit made in the form of a rotary screw installed in a casing with inlet and outlet nozzles, and a control unit installed in the operator's cab, characterized in that the outlet pipe of the rotary screw of the dispensing unit is made in the form of a guide tray attached to the end part of the casing with the possibility of guidance it to the alumina automatic feed hopper, and in the control unit there is a set of auger speed reference unit connected with a screw speed sensor mounted on the shaft of the feeder auger or distribution unit. 2. The machine according to claim 1, characterized in that the guide tray is made in the form of a pipe.