SU1213328A1 - Arrangment for preheating charge - Google Patents

Description

The invention is from Tosit to metallurgy, and in particular to the design of installations for preheating shyusta, and can be used; it is for the preheating of scrap lere loading n furnace.

The purpose of the invention is to improve the use of heat from the waste gases due to the renewal of the gas-contacting surface of the components.

Pa figure 1 shows a sketch of the proposed device; figure 2 - section aa HjS of FIG. 1; on fig.Z - section bb

in Fig.2 fibrolotok 1. 1

Device for heating the mixture

consists of chamber 1, having a roof 7-, side walls 3, recuperative blocks 4, chute 5, equipped with a view: brigade house 6s with supply 7 n outlet shdm 8 spigots., gate 9 ,, boot.

device 10 "DISCONNECTION OF CLUTCH 11;

water seal 2,

The vault 2 and side walls 3 of the chamber 1 are made of refractory material resistant to flue gas and partially on the side of the furnace 13, are well sealed by a self-laying and laying of recuperative cast-iron blocks w 4, have through channels 14 for passage of air connected to one side 15, and on the other hand a branch 16 KOJuieKTopaMH о Chute 5 is a hollow metal structure made in the form of a ladder, and the smaller base of the gutter faces the charging device with a longitudinal partition 17 inside the cavity and dv-y1- {to the lektorai ISj connected on one side with a veggie torus and on the other - with a drainage Je Idush, they were put to the burners of the furnace “Upper fan of gutter 5” - d-ascade using vibrodrive 6. To feed scrap into chamber 1, a loading device LOj consisting of K zrab 19 and pp. 20 is used. Loading window 1 is blocked by a gate 9. The chamber is sealed between the fixed walls of the chamber and the vibrating channel by means of a hydraulic lock 12 consisting of a metal frame 21, attached to the outer The sides of the gutter are around the perimeter, and the other side is the lowered n liquid S nakod yggyuysk in the team room: 22; representation

0

0 in

five

0

It is a channel that repeats the shape of the pamy

Ugtroystvo; d.p preheating ch.1ihty use sledurgptsim way

Raw material; for example scrap with large porosity; the loaded KpaHof-i into the box 19 of the loading device 105 with the help of the pusher 20 is fed to 1 second. The valve 9 is opened during the loading of the portion of material. With the reciprocating TBJ bHOM B spacing movement of the chute 5, the material being heated is evenly distributed across its width and simultaneously moves to the side of the hedge 13, due to the expansion of the chute in the direction of discharge and cascade output: its full size increases and constantly The Gyuverkha is renewed: the contact of the charge elements.) And the masses of the heated layer are reduced, which improves the condition of heat exchange with gas and the charge layer.

Besides; Such a construction prevents the filling of pieces of the charge as it moves, ensures an even distribution of the material when it is loaded into the smelting bath of the furnace.

The cascade part of the zybic gland provides a periodical as it proceeds: .-; fines of stages of cascade 5 turning over the elements (pieces) of charge, t, e, the heat exchange surface is periodically updated,

Heating of the oven in chamber 1 ocwjecT is waste gas; passing the FLOT from the furnace 13 The residence time of the material, which means that the temperature of its heating is adjusted by the angle of inclination of the keloba 5, the speed according to / tachi of the material into the chamber 1, the frequency of the chute 5. - the durability of the device through the channels in the 7th column 1 is the same. Gob 5 and the pekupera-thvk blocks 4 is fed to the sequence. On the island, which is then loaded: -asts. The aged air is used to fuel the furnace 13: The presence of partitions 17 in the cavity of the groove 5 also contributes to an increase in the stiffness and surface of the heat-tena.

Feeding volume; of the air in the channels. Gully 5 and recuperative blocks 4 it is possible to form: the degree of; weakly: flue gases of the flue gases entering chamber 1.

The melting of the charge and the possible melting of part of the chute, its warping comes from the direct radiation of the pre-included volume of gases

the melting unit at the junction of the latter with the heating chamber, i.e. at the end of the last swinging gutter (in the course of the movement of the material). This disadvantage in the proposed technical solution is eliminated by the wall .23 (FIG.), The lower edge of which is located below the bottom of the vibrating chute.

five

Well to

Blow up

sixteen

 Hot air

FIG.

e- B

Editor A. Sabo

Compiled by A.Sydorenko

Tehred A.AchCorrector M.Demchik

772/50 Circulation 561 Subscription

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PGS Patent, Uzhgorod, st. Project, 4

Fi.Z

Claims (1)

. A MIXING HEATING DEVICE comprising a heating chamber located on the gas path, a vibratory chute placed in the chamber, a charge loading device connected to the heating chamber, characterized in that, in order to improve the use of heat of exhaust gases due to the continuous updating of the surface in contact with the gas charge components, the vibratory chute is made with a cascade bottom and expansion in the discharge direction.