CN2589918Y

CN2589918Y - Furnace cupola exchanger

Info

Publication number: CN2589918Y
Application number: CN 02284564
Authority: CN
Inventors: 尤智勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-12-03
Filing date: 2002-12-03
Publication date: 2003-12-03
Anticipated expiration: 2012-12-03

Abstract

The utility model belongs to the field of the casting mechanism, and the utility model is suitable for a cupola furnace. The utility model has the major technology that a crossbeam is fixed above a feed inlet of the cupola furnace and below a chimney; a sleeve barrel type heat exchanger which is composed of an inner barrel and an outer barrel is installed on the crossbeam; an upper end surface and a lower end surface which are arranged between the inner barrel and the outer barrel are partitioned off the outside world by a circular ring shape partition board; two upright partition boards are welded between the inner barrel wall and the outer barrel wall in a front and back symmetrical way; the upper end of the two partition boards can leave a space, so that both sides of the two partition boards can ventilate; the lower part of each barrel wall is provided with an air inlet pipe and an air outlet pipe. The utility model has the advantages that the utility model not only can save cokes, but also can reduce the sulfur content of the castings, so that the utility model can enhance the quality of products.

Description

The furnace cupola heat exchanger

(1) technical field: the utility model belongs to the foundry machinery field.

(2) background technology: furnace cupola is that to be used for melting molten iron foundry machinery part used.At present, the used furnace cupola of general Foundry Works of China is not adopt hot blast to come air blast.Owing to adopted cold wind, or hot-blast stove chamber just comes with some shortcomings, and at first is the coal gas waste heat that can not make full use of furnace cupola, and is unfavorable to saving coke.Increased the consumption of coke.The second, owing to contain sulphur in the coke, thus improved the sulfur content of foundry goods, quality of castings is descended.In order to save the consumption of coke, can improve quality of castings again, transform necessary to the blower system of existing furnace cupola.

(3) technology contents: the purpose of this utility model is exactly to design the heat exchanger that a kind of suitable furnace cupola uses, and making the wind of drum in furnace cupola is the hot blast with enough heats.Major technique is to locate to be fixed with crossbeam above the charge door of furnace cupola with below the chimney, on crossbeam, lay the sleeve shaped heat exchanger, earlier inner core is welded during making, the outer both sides of inner core symmetry is welded with hard straight baffle and urceolus separates, only open one section at the top of two dividing plates sky, make air-flow flow to another side from one side, and then put urceolus and welded together with dividing plate, two weld with circular dividing plate between the both ends of the surface up and down is tight, be convenient welding, on the urceolus before installation, on the both sides of lower partition, burn-on earlier one section blast pipe and discharge pipe.Major advantage of the present utility model is: can absorb the waste heat heating cold wind in the cupola stack fully, and be added in the burner hearth of furnace cupola with the form of hot blast, wind-warm syndrome can high 200-300 ℃ than flue formula, thereby not only saved coke but also improved the quality of foundry goods.And the steel plate of sleeve can be thicker, prolonged the life-span of heat exchanger.

(4) description of drawings: Fig. 1 is a cross-sectional schematic of the present utility model.

(5) specific embodiment: charge door (10) top and the below of chimney (2) in furnace cupola (8) are located to be fixed with crossbeam (7), and telescopic heat exchanger is placed on the crossbeam.Two ends up and down between inner core (4) and the urceolus (5) are tight with circular dividing plate (1) weldering.Front and back between inner core (4) and the urceolus (5) separate with two vertical dividing plates (3), and empty one section is the passage (11) of the right and left ventilation in the sleeve on the top of dividing plate (3).The coal gas of burning can pass through with the space beyond interior and the urceolus from inner core, be welded with blast pipe (6) and discharge pipe (9) on the urceolus, blast pipe is that drum advances cold air, through heat exchanger heats, cold air gets off between another side two barrels through passage (11) from getting between two barrels, come out by discharge pipe then,, just can in the burner hearth of furnace cupola, add hot blast as long as discharge pipe inserts burner hearth.The utility model major advantage is: heating surface area is big, the wind-warm syndrome height, and long service life had both been saved coke, had also reduced the sulfur content in the foundry goods, thereby had improved product quality.

Claims

1, a kind of furnace cupola heat exchanger: it is characterized in that locating to be fixed with crossbeam above the charge door of furnace cupola with below the chimney, on crossbeam, lay heat exchanger, heat exchanger is made up of inner core and urceolus, two ends up and down between the inside and outside barrel separate with the annular dividing plate and the external world, the blowing air heating has blast pipe and discharge pipe in the middle cavity on the barrel.