CN2408418Y

CN2408418Y - Cupola for once smelting iron filings to cast tinned radiator directly

Info

Publication number: CN2408418Y
Application number: CN 00210895
Authority: CN
Inventors: 孙仲联
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-02-22
Filing date: 2000-02-22
Publication date: 2000-11-29
Anticipated expiration: 2010-02-22

Abstract

The utility model relates to a cupola for once smelting iron filings to cast tinned radiators directly. On the basis that original vertical cupola body, hearth, cupola well, flue, and hot-blast pipe, the height of the cupola body is increased; a heat exchange chamber is formed between the hearth and the flue; one layer or more heat exchange discharge pipes are arranged on the surroundings of the flame in the heat exchange chamber. Thus, the temperature of air pumped into the hearth is up to more than 800 DEG C, and reduction capability in the cupola is obviously improved. The cupola realizes the goal that iron filings are smelted into iron once to directly cast radiators. The utility model has the effect of stable product quality and fuel saving.

Description

The cupola furnace of melting once iron filings direct pouring radiator

The utility model belongs to the cupola furnace technical field of producing cast iron products in the metallurgy industry.

At present, for energy-conservation cupola furnace, be the technical task that the cast-iron radiator industry is paid close attention to direct pouring radiator (casting pig radiator) after the iron filings melting once.Though some places are being repaid examination, because of the layout of furnace binding, airduct, build stove material etc. and select improperly, and cause reducing power poor, the molten steel quality instability, the casting yield rate is low, and does not reach the target that reduces burnt consumption, man-hour and guarantee product quality.

Through analysis, the observation of long period, in the melting to iron filings, the temperature that is blown into the air in the stove is very big to the smelting process influence, determines the success or failure of disposableization iron direct pouring to a certain extent.

The purpose of this utility model is that a kind of cupola furnace iron time institute dispersed heat that can make full use of of design exchanges to the airborne device that is blown in stove, obtains a kind of once change iron, directly burning casting, economizes coke, the cupola furnace of saving working hour.

The technical solution of the utility model is at the body of heater that keeps vertical cupola furnace, on the basic structure bases such as end cupola well, burner hearth, flue, airduct, tuyere, increases a heat-exchanging chamber between burner hearth and flue.In heat-exchanging chamber by the heat exchanger of forming by comb.Heat exchanger comb wherein is along flame single or multiple lift arrangement on every side.The heat-exchange tube of monolayer alignment is higher a little.The outer extension of adopting the upper and lower mode of turning back of heat exchanger comb.Internal layer both can adopt outer field form, and the bridge-type that also can adopt top to pass flame kernel is arranged.Each layer comb is connected to end.The cold wind that air blast is blown into enters inner tube after being introduced into outer comb, and through the hot blast tube connector, tuyere is blown into burner hearth then.

Below promptly finished the utility model basic technical scheme.

In order to utilize waste heat more fully, also can in flue, establish one group of heat-exchange tube, be called the heat exchange of top part device.Make cold wind earlier through heat exchanger tube in the flue, enter the heat-exchange tube in the heat-exchanging chamber again.

Using good effect of the present utility model is the temperature of having utilized used heat exchange raising air that is blown into burner hearth of vertical heater.Generally can reach 800 ℃.Realized that successfully iron filings once change the purpose of iron direct pouring radiator, and made and water the radiator steady quality that casts out.

Fig. 1 is an overall structure schematic diagram of the present utility model;

Fig. 2 arranges schematic diagram for the individual layer bridge-type.

Below provide embodiment of the present utility model.The body of heater 6 of design is arranged burner hearth 7, cupola well 8 by common size.Main air mouth 9 is positioned at lower furnace portion, and auxiliary tuyere 5 is positioned at main air mouth top, establishes heat exchanger 2 in flue 1, sets up heat-exchanging chamber 4 between burner hearth 7 and flue 1.In heat-exchanging chamber 4, around flame, establish two layers of heat exchange comb 3.Outer comb adopts upper and lower trend of turning back.The reciprocal bridge-type that nexine can adopt top to pass flame kernel is arranged.The air route of entry is an air blast, top heat exchanger 2, heat exchange comb 3 in the Heat Room, warm-air pipe 10, main air mouth 9.

The utility model course of work is igniting, air blast, intensification, reinforced, melting, the casting of tapping a blast furnace.If any hanging the stove phenomenon, open auxiliary tuyere 5 and handle and to eliminate.

Claims

1, the cupola furnace of melting once iron filings direct pouring radiator, comprise body of heater (6), burner hearth (7), cupola well (8), hot blast nozzle (9), warm-air pipe (10), flue (1), it is characterized in that: have to add the Heat Room (4) that forms behind the furnace body, in Heat Room, establish the one or more layers of heat exchange comb of arranging along flame (3) on every side.

2, the cupola furnace of melting once iron filings direct pouring radiator according to claim 1 is characterized in that: said heat exchange comb is one deck or two layers.

3, the cupola furnace of melting once iron filings direct pouring radiator according to claim 1 is characterized in that: top heat exchanger (2) is arranged in the flue.