SU1663359A1 - Designs of conveyer sintering of roasting machines - Google Patents

Abstract

The invention relates to the construction of sintering or sintering machines used in metallurgy for the production of sinter and pellets. The aim of the invention is to improve the reliability of the seal in operation. The longitudinal seal of the upper part of the gas discharge conveyor sintering and firing machines contains the upper convex element mounted on the car trucks, and the lower concave element in the form of a groove, covering the convex element. The lower element is fixed on the gas discharge platform, which is made with transverse grooves, and the lower element is made with protrusions placed in the transverse grooves of the platform and mounted freely. Due to the fact that the lower seal element is freely installed on a flat gas discharge area, and the lubricant is freely fed into the chute, the sealing surfaces work reliably and they are constantly pressed due to the pressure difference, thus achieving a high sealing effect. 4 il.

Description

F 1 / 3.1

The invention relates to the design of conveyor sintering and roasting machines used in metallurgy to produce sinter and pellets, more precisely to seal the upper part of the gas outlet of such machines (vacuum chambers of agglomere and gas air roasting machines).

The purpose of the invention is to increase the reliability of compaction in operation.

Figure 1 shows the proposed seal, the cross-section: figure 2 - section aa in figure 1 (the junction of the lower elements); on fig.Z - section bb in figure 1 (the position of the protrusion of the lower element in the transverse groove of the site); Fig. A is one embodiment of the invention. The upper element 1, made in the form of a metal angle, is attached to the carriage 2 supported by the rollers 3 on the rails 4. The lower sealing element is made concave, in the form of a groove, enclosing the element 1. In this case, in FIG. 1, the chute 5 is made hollow (stamping), although it can also be made by casting or forging, as shown in FIG. 4, Chute 5 is freely mounted on a horizontal platform of the bracket 7 attached to the wall of the flue (vacuum chamber). The free installation of the chute allows it to move across a horizontal platform when exposed to horizontal forces to prevent longitudinal shear on each of its sections from below, a protrusion of the jack 8 is fixed, offset from the center of the section's body weight by the value K (Fig. 2). The lubricant is supplied through an elastic hose 9 connected to the cable 8. In the horizontal platform of the bracket 7, under each section of the gutter a groove 10 is made (FIG. 3), in which the door 8 freely enters. The groove length, size P (FIG. 3) is larger than the possible lateral displacement of the cart on the rails, size C, Fig.1. The device is mounted in such a way that between the top element and the groove there is a gap G, fig. 1. At the head of the machine, where the carts change from the curves of the guides to the rails, the gutter sections are rigidly fixed to the bracket 7, which is necessary for the proper installation (alignment) of the carts to the rails. Proper orientation and displacement of the section with respect to the trolley is also provided by V-shaped locks along the edges of the sections of the trough, Fig. 2.

The device works as follows.

The seal of the upper part of the gas outlet in the proposed construction is created by the contact of one of the sides of the upper element 1 with one of the inclined sides of the chute 5,

which is able to move in the transverse direction under the action of the pressure difference in the gas outlet and the surrounding air. Grease and seal through a flexible hose. Part of the grease squeezed out of

0 the cavity of the chute 5 to the horizontal bracket area will fall under the chute and contribute to the ease of lateral displacement of the chute. Since under operating conditions, especially in sintering machines, from 5 the nose of one side of the chute and the top element will be more wear on the other side (vacuum on the whole machine), during repair it will be possible to transfer the chutes from one side of the sinter machine to the other, and

0 case of roasting machine from one zone to another. Due to the fact that the lubricant enters the chute, the sealing surfaces work reliably. In combination with the constant pressing of the contacting

5 surfaces of the sealing structure ensures a high density of contact between the carriage and the gas outlet. At transverse displacements of the carriage, the lower element is displaced around the bracket area without any reduction in the sealing effect. In this case, the jack 8, which plays the role of a protrusion, prevents the longitudinal movement of the lower element, and its displacement from the center of gravity by an amount K in the direction opposite to

5, the direction of movement ensures a stable position of the lower element and the correct orientation along the carts.

Claims (1)

The economic efficiency of the invention will consist of reducing the productivity of sintering and firing machines and reducing the capacity for aspiration of the workshop space. The invention of the longitudinal seal of the upper part 5 gas discharge conveyor sintering and roasting machines, consisting of an upper convex element fixed on the carts of the machine, and a lower concave element located on a flat gas discharge nozzle, enclosing the convex element, characterized in that, in order to increase reliability in operation, the gas exhaust area made with transverse grooves, and the lower element is more complete with protrusions located in the transverse grooves of the site, and is installed freely. Aa Ј- / N / T.t. / B s FIG. 2 0 / l. .J