RU162284U1 - MACHINE FOR TRANSPORTING AND UNLOADING BULK MATERIALS IN THE ELECTROLYZER - Google Patents

Abstract

1. A machine for transporting and unloading bulk materials into an electrolytic cell for producing aluminum, comprising a hopper mounted on a self-propelled chassis with an inclined aerodynamic bottom and an unloading chute in the form of estrus, characterized in that the estrus is made in the form of a flexible pipe mounted in front of the front of the hopper, with the possibility tilt the discharge end in a vertical plane, transverse to the longitudinal axis of the machine. 2. The machine according to claim 1, characterized in that the discharge tray is connected to the tilt cylinder.

Description

The proposal relates to metallurgy and can be used to distribute bulk material, for example, alumina to the crust of the electrolyte of electrolyzers to produce aluminum or used in other industries.

A known machine for the distribution of alumina containing a hopper in the form of two receiving devices with surface grooves, as well as a frame, a control mechanism and a self-propelled carriage (A.S. Belyaev and others. Mechanization of aluminum electrolysis shops, Metallurgy, M., 1969, p. 31 , fig. 10).

The main disadvantages of the known machine is dusting at the time of loading and unloading the hopper, the volume of the hopper is not large enough, the inconvenience of servicing the machine: the operator controls the machine while standing.

Known self-propelled machine for loading alumina into aluminum electrolysis cells (USSR author's certificate 1035096, class C25C 3/14, 1983).

The known machine comprises a hopper with an inclined aero-bottom and a loading hatch, a estrus and a rotary sleeve with an aeroband, a dispenser between the estrus and a rotary sleeve in the form of a drum type and a support device rigidly connected to the hopper and the chassis of the machine.

The swivel sleeve is rotatable in a vertical plane and mounted on the side of the machine.

The disadvantages of the known machine are the loss of raw materials as a result of dusting at the time of loading and unloading it, as well as the inability to process the ends of the cell.

Closest to the proposed machine is a machine for the distribution of bulk material (RF patent No. 2188258, class C. C25C 3/14, 2002). The machine adopted for the prototype, contains a removable hopper with an inclined aerofoil and a loading hatch, estrus, a rotary sleeve and a support device. Between the estrus and the rotary sleeve, a shutter is installed in the form of a vertical material pipe, and at the end of the rotary sleeve the shutter is in the form of an inclined material pipe. The chute, swivel sleeve and hopper are equipped with filters, respectively. The loading hatch is made in the form of a funnel and is equipped with a damper with a counterweight turning inside the hopper. A swivel sleeve is mounted in the front of the trolley with the possibility of rotation in a horizontal plane and is equipped with a drive for turning the sleeve. The shutter at the inclined end of the rotary sleeve is made in the form of a pocket closed by a porous partition, under which a pipe for supplying compressed air is installed. In another embodiment, the shutter on the inclined end of the rotary sleeve is made in the form of a shutter with a manual actuator. The supporting device is made in the form of two racks with fixing conical ends and a third rack in the form of a vertical detachable section of air ducts connecting the fan with the air duct system of the machine.

The machine provides a reduction in the loss of raw materials during loading and unloading from the machine, but has a complex, bulky design with a high cost of operation and maintenance.

The objective of the proposed proposal is to increase reliability during operation and simplify machine maintenance.

The technical result consists in simplifying the design, increasing its reliability, while maintaining a reduction in the loss of raw materials when loading and unloading it from the machine.

The technical result is achieved by the fact that in a machine for transporting and unloading bulk materials into an electrolytic cell for producing aluminum, containing a hopper mounted on a self-propelled chassis with an inclined aerodynamic bottom and an unloading tray in the form of estrus, in accordance with the claimed solution, the estrus is made in the form of a flexible pipe, installed in front of the front of the hopper, with the possibility of tilting the discharge end in a vertical plane, transverse to the longitudinal axis of the machine.

The utility model is complemented by private distinctive features that contribute to the achievement of the task.

The trickle is connected to the tilt cylinder.

A flexible aeration pipe is installed in the lower part of the estrus.

In the transport position, the unloading end of the estrus is located in a vertical position in the dimensions of the machine.

The chute is connected to the air duct through a transfer chamber.

A ball valve with a drive from a hydraulic cylinder is installed in the air supply pipe.

The implementation of estrus in the form of a flexible pipe installed in front of the front of the hopper allows it to vibrate and produce a uniform unloading of raw materials, and estrus is not damaged if it accidentally comes into contact with the electrolyzer bath. The installation of a flexible pipe with the possibility of tipping the discharge end in a vertical plane, transverse to the longitudinal axis of the machine, allows to feed raw materials into the electrolyzer at a greater distance from the machine, which favorably affects the structural elements of the machine, eliminates their overheating and increases reliability during maintenance.

The utility model is illustrated by drawings, where -

In FIG. 1 shows a machine for loading raw materials into electrolyzers, front view.

In FIG. 2 - also, right view.

In FIG. 3 - also, top view.

In FIG. 4 - also, an isometric view with a section on the technological equipment.

The list of structural elements:

Self-propelled wheel chassis 1;

Operator's cab 2;

Hopper with an inclined bottom 3;

Aeration system 4 bins 3;

Loading mouth 5 of the hopper 3;

Strainer 6;

Aeroglove 7;

Overflow chamber 8;

Unloading tray in the form of a flexible pipe 9;

Hopper support 10;

The sensor detector low level of raw materials 11;

The tilt drive 12 of the discharge tray 9;

Bearing support 13 of the discharge tray 9;

Flexible aeration pipe 14;

Ball valve 15.

A machine for transporting and unloading bulk materials into an electrolytic cell for producing aluminum consists of a self-propelled wheeled chassis 1 on which technological equipment and an operator's cab are installed 2. Technological equipment consists of a hopper with an inclined bottom 3 for loading bulk materials - alumina or fluoride salts into the electrolyzer, and alumina discharge systems. Alumina is unloaded due to the aeration system 4 of the hopper 3. The feed neck 5 of the hopper 3 is equipped with a strainer 6. At the bottom of the hopper 3 there is a lower hopper tray in the form of an air duct 7. In the front lower, right side of the hopper 3 there is a transfer chamber 8 and an unloading tray 9, made in the form of a flexible pipe.

The hopper 3 is mounted on four supports 10 mounted on the chassis of the self-propelled machine 1. On the wall of the hopper 3 is installed a sensor signaling device of the lower level of raw materials 11.

The unloading tray 9 of the machine is installed in front of the front of the hopper 3, with the possibility of tilting the unloading end in a vertical plane, transverse to the longitudinal axis of the machine.

The part opposite to the discharge end of the tray 9 is connected to the air duct 7 through the transfer chamber 8. The tilt 12 of the discharge tray 9 is driven from the tilt cylinder. The discharge chute is rotated by two bearings 13. Inside the discharge chute 9, in its lower part, a flexible aeration tube 14 is installed to aerate the bulk material and keep it in suspension.

The supply of alumina to the overflow chamber 8 is carried out by an aerogloader 7 of the hopper 3, covered with a special filter cloth from above. Aeration is provided due to the air pressure in the aeroflot 7, which is provided by the compressor.

In the transport position, the unloading end of the estrus 9 is located in a vertical position in the dimensions of the machine.

The pipeline for supplying compressed air to the air duct is equipped with a pressure air regulator with a ball valve, made, for example, in the form of a valve 15.

The machine operates as follows.

The loading of alumina into the hopper 3 is performed through the loading neck 5. When the aeration system 4 is turned on, air enters the aeration channel 7 and passes through the material. The flowability of the material increases, and it slides along the inclined bottom of the hopper 3 towards the overflow chamber 8. Having installed the machine along the electrolyzer, the operator, using the tilt drive cylinder 12, lowers the discharge chute 9 onto the electrolyte crust. Due to the flexible aeration pipe 14 installed in the lower part of the discharge chute, the material in the discharge chute 9 acquires flowability and the material is uniformly unloaded onto the electrolyte crust. Moving along the electrolyzer on the machine, the operator sprinkles the material evenly over the surface of the crust.

The regulation of the amount of air required to move the alumina from the hopper through the air duct is carried out using a ball valve 15.

Thus, the proposed machine provides high-quality performance of operations on transportation and unloading of raw materials, preventing the usually allowable loss of raw materials in the process of performing these operations. Used flexible pipe has the possibility of greater vibration, less prone to damage in case of accidental contact with the cell. The machine has high maneuverability, reliable and less costly to operate and convenient to maintain.

Claims (2)

1. A machine for transporting and unloading bulk materials into an electrolytic cell for producing aluminum, comprising a hopper mounted on a self-propelled chassis with an inclined aerodynamic bottom and an unloading chute in the form of estrus, characterized in that the estrus is made in the form of a flexible pipe mounted in front of the front of the hopper, with the possibility the inclination of the discharge end in a vertical plane, transverse to the longitudinal axis of the machine. 2. The machine according to p. 1, characterized in that the discharge chute is connected to the tilt cylinder.

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