US2340193A

US2340193A - Receiving hopper structure for hot metal mixers

Info

Publication number: US2340193A
Application number: US479209A
Authority: US
Inventors: Harry L Mcfeaters
Original assignee: PENNSYLVANIA ENGINEERING WORKS
Current assignee: PENNSYLVANIA ENGINEERING WORKS
Priority date: 1943-03-15
Filing date: 1943-03-15
Publication date: 1944-01-25
Anticipated expiration: 1961-01-25

Description

Jan. 25, 1944. H. MQFEATERS RECEIVING HOPPER STRUCTURE FOR HOT METAL MIXERS Filed March 15, 1943 2 Sheets-Sheet l Jan. 25, 1944. H. L. M FEATERS 2,340,193

RECEIVING HOPPER STRUCTURE FOR HOT METAL MIXERS Filed March 15, 1943 2 Sheets-Sheet 2 Patented Jan. 25, 1944 RECEIVING HOPPER STRUCTURE FOR HOT METAL MIXERS Harry L. McFeaters, New Castle, Pa., assignor to Pennsylvania Engineering Works, a corporation of Pennsylvania Application March 15, 1943, Serial No. 479,209

Claims.

This invention relates to hot metal mixers and more particularly to hopper structures for the charging openings of such mixers.

In hot metal mixers of the type in which the top portion of the mixer shell is provided with at least one charging opening, and the refractory lining of the shell is provided with an opening below such charging opening, the shell opening is usually surrounded by an upstanding member w a in atent ,241 of July 2 1930, In Fig. 1 of the drawings, I have disclosed one forms a support for a removable hopper iormtype of hot metal mixer to which the invention ing member or thimble which is provided with OI this application is applicable. This mixer comrefractory lining. prises an outer shell 5, having a charging hopper This construction permits replacement of the 6, a pouring spout l, a connecting portion 8 leadpper y another relined opper as its refracing II'Om the mixer proper to pourin spout l, a y lining e s at n w y or e oded b rerractory lining s for the major portion of the zgleolllllgklltifier llgtgllag 1 1 charged into the mixer mjinxelrl, preferably lormed of hrefractoryt bricks w c closely hi; the mixer s ell, and he op II1 the Se N mixers, the Wall Of the 11019 refractory lining l0 which is preferably spaced PPEnmg refractoly lmmg bilow Charg from the top of the mixer shell, a refractory linlng 91 3 8 a 50 ea e11 y 3' erosion an ing II for channel portion 8, and a refractory i gg gg gi g sfi g fm- 1 s di lining for spout I, which lining is not shown.

5 W 15 a more or e S The u er linin It, which onstitutes th roo ficult job and one object this invention is portion the mi er lining, is prei'erably iafrmeri to produce; a holpper stru t r n Whlch P Wall a a sprung arch supported on skewblocks 4| 2 and gig gfg fi i fiig fi igg f and 15 there is. The supporting structure for the mixer shell V and the apparatus for tilting the shell to and purpose of simplification. to give it a longer useful life. e

A further object is to produce a hopper 'struc- The mlxer mustraped 1S of the barrel type ture in which such wall forms art f the ho per one or both ends OI the same may be provmed p o p with inspection openings l4 and a, burner openstructure, so that as the refractory parts of such ing 5 in the refractory lining and with suitable structure become eroded, the hopper can be replaced with another hopper in which the refrac- Egg for the Inspection openings m the shell tory parts have been renewed or repaired.

A further object is to produce a removable 'llhe mixei shell WhlCllls preferably formed of hopper for the charging opening having a refrac suitable metal plate sections connected together tory skirt which is water cooled and which exby Weldmg' 1s Brovlded Wlth clrcula'r Charg tends through the opening in the mixer lining 40 mg openmg P 2) 1 t P below the hopper below the charging opening is provided with a A still further object is to produce a removable cu'culal oPemng bounded y arch f bricks hopper for the charging opening having a water Opemng 15 S11}? minded y an upstanding cooled refractory skirt which extends through the member- Thls member 18 of welded opening i t mixer lining below t hopper, struction and comprises a cylindrical member l8 and which is removable with the hopper. 'Y upper flange and a lower ge These and other objects, which will be appar which iswelded to the shell around'the charging ent to those skilled in the hot metal mixer art, Openmg- I attain by the hopper structure described in the A st met l pp comprising a ind ical specification and illustrated in the drawings 2.0- may Portlon an pper outwardly extending companyi'ng and forming part of this applicaflallge 22 and a l r i w y extending flan tion. 23 1S removably supported in place on the upper I th drawings: flange of the support member.

Figure 1 is a view partially in section and par- The hopp r is provided with a refractory lintially in elevation of a hot metal mixer equipped mg 24. A hollow annular metal member 25 is with a charging opening hopper embodying this invention. In this view, the supporting and tilting apparatus for the mixer has been omitted.

Fig. 2 is an enlarged detail view of the charging opening hopper structure of this invention; and

Fig. 3 is a fragmentary sectional view on an enlarged scale of a portion of the cooling element for the refractory skirt of the hopper structure.

secured in place below and in contact with inwardly extending flange 23.

Member is preferably formed of steel tubing which is flattened as shown in the drawings and is bent into the form of a ring with its ends welded to a plate-like member 25 which forms a baffle in the annular chamber between inlet pipe 2? and outlet pipe 28. These pipes enter the top portion of member 25 and are welded in place as disclosed at 29, Fig. 3. From this construction, it will be apparent that cooling water or other cooling fluid entering inlet pipe 21 will circulate through member 25 and pass out through outlet pipe 28.

Pipes 2'1 and 28 pass upwardly through openings such as opening 30 formed in flange 23 of the hopper. The upper ends of each of these pipes, by means of elbows 3! connect with pipes such as 32 which are part of a cooling water or other cooling medium circulating system.

Member 25, at its top, bears against the under face of the lower flange of the hopper and is securely held in place by angle clips or brackets 33 which are welded to the under face of said flange and to member 25. ber 34, preferably of round section, is welded to the inner peripheral face of member 25 and forms an anchor for an annular refractory skirt member 35. This skirt is preferably formed of refractory material, while the same is in plastic condition and before the hopper and water cooler 25 are placed in position within the charging opening. Anchor member 35 securely holds the refractory skirt member in place.v

The refractory bricks which surround the opening in the mixer lining below the hopper are cut away to accommodate annular water cooler 25 as disclosed in Fig. 2 and the refractory skirt is preferably of such length as .to ex-. tend from the lower face of flange 23 to the lower face of arch or roof H1. The space between the skirt and the lower edge, of the refractory lining of the hopper is filled with plastic refractory material 36.

Before lifting the hopper from position, it will be necessary to unscrew pipes 32 from elbows 31.

A cast cover 31 lined with refractory material 38 is provided for the hopper and this as shown in the drawings, is supported in position by refractory lining 24 ofthe hopper. A system of links and levers as, shown in Fig. 2 of usual construction is utilized for moving, the cover to and from closing position.

Having thus described myinvention, what I claim as new and desire to secure by Letters Patent is:

1. In combination in a hot metal rnixerv having a shell provided with a charging opening surrounded by an upstanding support member and a refractory lining for the shell having an opening below said charging opening, a removable metal hopper supported by said support member and having a refractory lining, an annular refractory member below said hopper membenforminga refractory skirt for the hopper member which extends into the opening in the shell lining, and means connecting such A bar-like memskirt to the hopper; the construction and arrangement being such that said skirt forms part of the hopper and is removable with the same.

2. In combination with the shell of a hot metal mixer having a charging opening surrounded by a support member and a refractory lining for said shell having an opening below said charging opening, a removable metal hopper member supported by said support member and extending through the charging opening, a refractory lining for said hopper member, an annular refractory member below said hopper member and extending into the opening within the shell lining, and a hollow metal member secured to and depending from said hopper member and having a cooling medium inlet and a cooling medium outlet and being constructed and arranged to support said annular refractory member.

3. In combination with the shell of a hot metal mixer having a charging opening surrounded by an upstanding member supported by said shell and a refractory lining for said shell having an opening below said charging opening, a removable metal hopper member supported by said upstanding member, extending through-the opening in the shell and, adjacent its bottom having an inwardly extending flange, a refractory lining for such'hopper member supported by said flange, a refractory skirt located below said flange and extending intothe opening in the shell lining, and a cooling element located below and secured to said hopper member, having a fluid inlet and a fluid outlet, contacting with and surrounding said refractory skirt and carrying means for anchoring said skirt in place.

4. In combination with the metal shell of a hot metal mixer having a charging opening surrounded by a support member and a refractory lining having an opening below said charging opening, a removable metal hopper supported by said support member, extending through the charging'opening in said shell and adjacent its bottom having an inwardly extending flange, a

refractory lining for the hopper carried'b-y said inwardly extending flange, a skirt-like'refractory member below said flange, a flattened tubular metal ring secured to said fiange,depending from the same, having an inlet and an outlet for a cooling medium and provided on its inner peripheral face with means for anchoring said skirt-like refractory member in place.

5. In combination with the metal shell of a hot metal mixer having a charging opening surrounded by an upstanding support member, and a refractory lining for said shell having an openingbelow said charging opening, a removable hopper having a refractory lining, an annular refractory skirt below said hopper, and extending into the opening in the shell lining, and a hollow annular metal water cooled member secured to and depending from said hopper, surrounding said skirt, anchoring said member in place and having an inlet and an outlet for cooling water.

HARRY L. MoFE-ATERS.

CERTIFICATE OF CORRECTION. Patent No. 2,514.0,195. January 25, 19M

HARRY L. MCFEATERS.

vIt is hereby certified that error appears, in the printed specification of the above numbered patent requiring correction asfollows; Page 2, second column, line 65, claim 5, for "member" read -skirt-; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this ll th day of March, A. D. 19141;.

Leslie Frazer .(Seal) Acting Commissioner of Patents.