SU575465A1 - Loading device of conveyer machine - Google Patents

Description

one

The invention relates to the agglomeration process for the sintering of metallurgical raw materials and can be used in the heat treatment of ore and non-metallic materials to improve the distribution of the components of a mechanical mixture by size and material composition.

One short-circuit of the main technological methods of heat treatment of granular materials on moving gratings is the formation of a layer. Therefore, the loading devices of conveyor machines, in addition to providing a given performance, are subject to special requirements concerning the quality of the formed layer. These requirements include: grain size distribution of the grain-like material, ensuring a reduction in grain size. layer height; rational distribution of components along the height of the layer, providing an increase, for example, the fuel content in the upper part of the layer; sealing of the peripheral areas of the first layer, contributing to the reduction of the airborne air side systems.

There are currently no reliable boot devices that meet all of the listed requirements. And due to the high values of adhesion forces in the formation of a layer of injected materials, local volumes are formed in it containing grains of different sizes and having an insufficient number of components necessary for the normal course of the process.

A loading device is known, the inclined section of which is lined with an elastic material divided into chambers arranged transversely to the flow of the starch. The chambers are connected to air and a device for periodically supplying air to them. This ensures cleaning and improves segregating of the material on tray 1.

The most well-known boot device in which the inclined tray is reported reciprocating 23

The reciprocating movement of the inclined chute along the material flow largely imparts an additional movement to the grains having a large mass. As a result, they are better distributed: by size and lightweight composition. However, even in this case, the separation of the zeruns due to dullness occurs in the total mass of the material iCy of the material, since additional mechanical action takes place in the plane of the tray. Therefore, the use of a known device for forming a layer, for example, a wet sintering bed, has little effect (}) and is highly and reliably dependent on fluctuations in its humidity. The disadvantages of the known device also need to include a low degree of separation of grains by the material composition and the impossibility of its adjustments to the height of the layer, depending on the specified mode spekapiya.

The aim of the invention is to intensify the sintering process and save solid fuel.

This pel is achieved due to the fact that the proposed loading device is equipped with a centrifugal separator, made in the form of a drum with a drive, installed along the lower mountaineer of the inclined tray and protruding above its plane by 0.15-0.6 diameter.

Thus, the segregation by size currently used in the p. Of the process of forming a layer is replaced in the proposed device for grain size and size. This ensures the distribution of the skull over the height of the layer, not only by size, according to the substance of the composition, but also to make the separation more efficient.

The drawing shows the proposed boot device of the conveyor machine, side view.

The loading device consists of a receiving hopper equipped with a feeder 2 and an inclined tray 3 with a smoothing head 4. A drum 5 with an actuator is installed along the lower end of the inclined tray 3 on the bearing supports. The drum can be made with tapered ends and contact along an inclined tray that forms with the end face for its entire width or only in the middle part of 0.6-0.9 of its width.

. A centrifugal separator, made in the form of a drum 5, provides for the movement of grain along parabolic trajectories and due to this, an intensive separation of grain size and mass.

For the normal course of the separation process, it is necessary to use a series of

VIY, which provide for the capture of the 5th portal in the direction of the flow of the drum.

The device operates as follows. The material from the hopper 1 by means of the feeder 2 enters the inclined tray 3 and moves along it, hits the drum 5 rotating in the material flow direction. The rotation speed of the drum 5 can be adjusted to the optimum value for a given material.

The acceleration of the USB on the drum of the zerp to different speeds, rotation of the drum and the radius of the grain itself, which comes from the radius, are detached from the surface at different angles and each receive their parabolic trajectory, since they have different kinetic energy, which causes their separation.

The advantage of the proposed yktropotstv is that the distribution of materials in the layer does not depend on the strength of the synergy between the grains, since with their increase the speed of rotation of the drum can be increased and this stabilizes the Reparation process.

The device allows you to adjust the distribution of fuel along the layer height, which contributes to its economy, and to create a bed of the largest grains, which ensures the safety of the grid. Its use makes it possible to increase the gas permeability of schichtits and, as a result, the height of the sintered layer without reducing the productivity of the sintering cloth.

Claims (2)

1. USSR author's certificate No. 306172, C 21 V 1/16, 1970. 2. The patent of Germany No. 1176369, cl. 4O a 1 / O 1965.