US1829356A - Tuyere - Google Patents

Description

lOlli. 27, 1931. G. W. HUGHES 1,829,356

TUYRE Filed July l5, 1930 INVENTOR ATTORNEY Patented Oct. 27, 1931 UhilED STATES GEORGE W. HUGHES, 0F MONESSEN, PENNSYLVANIA TUYnE Appueation med July 15, 1930.: serial' No. 468,007.

My invention relates to tuyres and the method of installing the same, and more particularly to tuyres for use in blast furnaces and the like.

One object of my invention is to provide a tuyre of such form that it will be of longer life than various types of tuyres' heretofore employed.

Another object of my invention is to provide a tuyre that can be readily installed, particularly in the making of replacements.

Still another object of my invention isto provide an improved manner of replacing tuyres without the necessity of waiting until the furnace has cooled.

@ne manner in which my invention may be practiced is shown in the accompanying drawings, wherein Figure 1 is an elevational view of my improved tuyre, looking at the inner end thereof; Fi g. 2 is a longitudinal sectional view of the tuyre; Fig. 3 shows a portion of a furnace wall with a tuyre in process of being pushed into place therein, and Fig. 4 is a similar view, but showing the tuyre seated in its operative position.

The tuyre is indicated by the numeral 5 and is of the water-cooled type, the body of the tuyre being hollow, and it being provided with tapped inlet and outlet openings 6 in its outer end, through which the cooling water may be circulated in the usual manner. in order that the use of the tuyre may be more conveniently explained, I show a portion of a furnace wall 7 having the usual tuyre opening 'within which is placed a tuyre cooler 8, which may also be watercooled in the usual manner.

The tuy`ere is'provided with a series of tongues or overhung flanges 9 at its inner end, the tongue portions being spaced a slight distance apart. The inner wall of the tuyre is extended as at 10, to provide a cylindrical or inwardly-tapered lip that is shown as concentric to the tongues 9. Refractory material such as fire clay is introduced into the annular space between the wall 10 and the tnngues 9, and is retained in place by the inturned or beaded ends 11 of the `tongues 9. Also, the slot-like spaces between the tongues 9 permit the air to be forced out when the refractory material is being pushed into place against the inner end of the tuyre body;-

`My invention is of particular utility in the replacement of burned-out tuyres.` Vhen it becomes necessary to remove' a tuyre, the tuyre opening in the furnace wall is filled with fire clay or other refractory material 12 toV prevent heated gases `from flowing out through the tuyre opening and interfering wit-hl workmen engaged iin replacing the tuy're.

"lVhilethis refractory material 12 is'still plasticl or soft,A a tuyre is brought into the position indicated in Fig. 3, and pushed to the position shown in Fig. Il.. The insertion of the tuyre against the fire clay results in the space surrounding the extended portion 10 thereof being filled with the clay, as shown more clearly in Fig. 4, and the normal heat of the furnace will burn the clay to a refractory condition.

That portion of the clay remaining within the tuyre body will be blown out or otherwise removed, while the clay contained within the space between the parts 9 and 10 will protect the metal parts of the tuyre and prolong its life, and the circulating water will, of Course, have a cooling effect on the refractory and prolong the life thereof.

The beaded ends of the tongues 9 also serve as wearing surfaces for the material passing down through the furnace in front of and over the inner end of the tuyre.

Vhile the invention has been described as applied more particularly to tuyres, it will be understood that the inventive idea is applicable also to various other devices such as bosh plates and coolers.

I claim as my invention 1. A tuyre body having an inward extenn' sion which is shaped and positioned to cooperate with spaced tongues in providing an annular space, and tongues disposed circumferentially of and radially spaced from said extension for retaining refractory material L in said space, the tongues being spaced apart.

2. A tuyre body having an inward entension which is shaped and positioned to cooperate with spaced tongues in providing an annular space, and tongues disposed circum- 1GO f y ferentially of and radially spaced from said comprises placing unhardened refractory extension forv retaining vrefractory material insaid space, the tongues being spaced apart', and having their ends inturned.V

Y 3. A tuyrel body having an extended portion of annular form, and extensions spaced radially of said extended portion and laterally of'one anotheryfor retainingA refractory material in said space, the eXtensions having heads formed on their inner ends.A 'Y

Y Y L'H'Ihe methodof `installingtuyres Which material ina tuyre opening and inserting a tuyre havingv a refractory-retaining projection on its inner end through said material'.

Y 5j. The method Whichfcomprises forcing a tuyre `bodyl having refractory-retaining Vprojectionsatits inner end, into .a mass of 'unhardened refractory"materiahvincidentally to vplacing the said body into operative position in a furnace, i A

VV(i. A Ydevice for use in furnace Walls, comprising apmetal member having a lip'at its inner end for supporting a'refractoryj, yand inwardlyextending tongues carried by said Y body having laterallyLturned ends positioned vto retain a refractory place onsaid lip,' the said; tongues being spaced apart.l

,lnltestimony whereof I, the said GEORGE HUGrIEs, have hereunto set myjhand. Y

,f Y Y GEORGE W. HUGHEsz

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