CN2558941Y

CN2558941Y - Heat exchanger for blast cupola

Info

Publication number: CN2558941Y
Application number: CN 02278338
Authority: CN
Inventors: 尤智勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-08
Filing date: 2002-07-08
Publication date: 2003-07-02
Anticipated expiration: 2012-07-08

Abstract

The utility model of a cupola heat exchanger pertains to the foundry machinery field and is applicable to the cupola as well as other fields. The essential technique of the utility model is that beams are fixed above a feed inlet of the cupola and under a chimney. A round lower connecting box is fixed on the beams. A pipe on the lower connecting box is communicated with a round upper connecting box. The edge between the lower connecting box and the upper connecting box is connected with a box connecting pipe which is divided in to an upper layer and a lower layer which are installed alternately. The upper connecting box is provided with an air inlet pipe and the lower connecting box is provided with an air outlet pipe. The utility model has the advantages of not only saving coke consumption, promoting production of the cupola, but also reducing sulphur content in a cast, thereby improving 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 being used for molten iron foundry machinery part is used.At present the used furnace cupola of general Foundry Works of China is not adopt hot blast to come air blast, but the air blast in stove of the cold wind that adopts.And have some producers to adopt hot blast band, air blast in stove.Owing to adopted cold wind, or the hot blast band just comes with some shortcomings, and at first is the waste heat that can not make full use of furnace cupola, and is unfavorable to saving coke, often will increase 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 that enough heats are arranged.The utility model also can be used for other field.Major technique is to locate to be fixed with crossbeam above the charge door of furnace cupola with below the chimney, on crossbeam, be fixed with the lower linked box of garden shape, there is the upper linked box of Guan Yuyuan shape to communicate on the lower linked box, there is crooked perpendicular box pipe to be connected around between lower linked box and the upper linked box, perpendicular box pipe divides work two-layer up and down, and the installation of alternately staggering, blast pipe is arranged on the upper linked box, discharge pipe is arranged on the lower linked box.The utility model major advantage 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, thereby not only save coke but also improved the quality of foundry goods.

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

(5) specific embodiment: charge door (9) top and the below of chimney (4) in furnace cupola (8) are located to be fixed with crossbeam (6), are fixed with the lower linked box (5) of garden shape on crossbeam, have pipe (10) to communicate with the upper linked box (2) of garden shape on the lower linked box.Pipe (10) can play the connection of lower linked box with fixing, can play the effect of heating when ventilating again.Have crooked perpendicular box pipe (3) to be connected around between lower linked box and the upper linked box, perpendicular box pipe divides about doing two-layer, and the installation of alternately staggering.Perpendicular box pipe divide to be done two-layer up and down, and installations of alternately staggering, and mainly to be in order discharging fume and easy for installation, and to pacify several more, and make chimney have enough spaces to discharge fume.Blast pipe (4) is arranged on the upper linked box, discharge pipe (7) is arranged on the lower linked box.Blast pipe is that drum advances cold air, and through heat exchanger heats, cold air is discharged by discharge pipe after heating, as long as discharge pipe inserts burner hearth, just can add hot blast in the burner hearth of furnace cupola.The utility model major advantage is: both saved coke, improved the output of furnace cupola again, also reduced the sulfur content in the foundry goods, thereby improved product quality.

Claims

1, a kind of furnace cupola heat exchanger, it is characterized in that: crossbeam (6) is located to be fixed with in charge door (9) top and the below of chimney (4) in furnace cupola (8), on crossbeam, be fixed with lower linked box (5), there is pipe (10) to communicate on the lower linked box with upper linked box (2), there is crooked perpendicular box pipe (3) to be connected between lower linked box and the upper linked box, the perpendicular box pipe layering is installed, and blast pipe (1) is arranged on the upper linked box, and discharge pipe (7) is arranged on the lower linked box.