US1331803A - Open-side water-jacket for smelting-furnaces - Google Patents

Description

A. B. CARSTENS.

OPEN SIDE WATER JACKEI'FORSMELTING FURNACES.

APPLICATION FILED OCT. I, ma.

Patented Feb. 24, 1920.

3 SHEETS-SHEET l.

n '7" If; 1 "Milli mi? cqpsrws.

A. B. CARSTENS. OPEN SIDE WATER JACKET FOR SMELTING FURNACES.

. APPLICATION FILED OCT. 1. ma/ 1,331,803. Patented Feb. 24,1920.

. I a SHEET5-SHEET 2.

A. B. CARSTENS.

' OPEN SIDE WATER JACKET FOR SMELTING FURNACES.

APPLICATION FILED OCT. 1, I918.

' Patented Feb. 24,1920.

3 SHEETS-SHEET 3- j STATES PATENT 0FFIOE.

DER B.- GAB TENS, OF MON E-RE ME C ASSIGNQB T9 THE ME AL GQMPANY, LI ITE 91 NEWY K. N. Y., A B BATI N Q NEW Y BK- .orE -snm WATER-JACKET ron sMELTrNe-FUaNAcns.

Specification of Letters Patent.

Patented Feb. 24, 1920.

' Application flied October 1, 1918. Serial No. 255,438.

To all whom it may concern: r

Be it known that I, ALEXANDER B. CAR- STENS, a citizen of the United States, residing at Monterey, N. L, Mexico, have invented certain new and useful Improvements in Open- Side Water-Jackets for Smelting-Furnaces; and I do declare'the following to be a full, clear, and exact de scription of the invention, such as will en' able others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this specification.

My invention relates to improvements in water jackets for smelting furnaces. This invention has to do with meansfor cooling where unprotected walls would be subjected to the action of the molten metal when the furnace is in operation. The present recognized practice is to build a hollow jacket that usually reaches from the crucible upwardly to the lower part of the brick work of the furnace shaft. 'The jackets as at present used are hard to clean and this can "only be done by closing down temporarily and washing out the jackets. Furthermore, there is no positive means of knowing whether the jacket is full'of water or not.

The static pressure of the water at the lower end of the jacket is usually much higher than the pressure inside the furnace,so in case the jacket burnsthrough at its lower end on the inside of the furnace the water enters and a violent explosion ensues. This has happened a great many times and these explosions are'sometimes attended with loss of life.

The idea ofan open side jacket is to provide means for ready cleaning and inspection, but the most important point is that the static head of the water at the lower It should be stated, however,

single cell type.

end of the jacket amounts to very little and this pressure is not affected "by the height of the jacket as in the'inolosedtype. It is, therefore, possible with my improvement to build a jacket as high as desired without endangering the furnace from high water pressure in the jackets.

Having briefly outlined the invention as well as some of the objects it is desired to accomplish, I will proceed to describe. the same in detail reference bcing'made to the accompanying drawing in which is illustrated an embodiment thereof. drawing:

Figure 1 is a vertical longitudinal section of a silver lead smelting furnace equipped with my improvement, the furnace being partly broken away for lack of room on the sheet. 7 termthe multiple cell jacket.

Fig. 2 is a similar view of the lower part of the furnace but showing a slightly modified type of jacket, being whatI term the Fig. 3 is a section taken through one of the jacket members on the line 33 Fig. 4, showing the multiple cell type.

Fig. 4 is an exterior or outside elevation of one ofthe water jacket members of the multiple cell type. v j

Fig. 5 is a section taken on the line 5.5, Fig. 6. illustrating the single cell type.

Fig. 6 is an exterior elevation of one of the single cell typewater jacket members.

Referring first more particularly to Figs. 1, 3 and 4, let the numeral 5 designate the upper part or shaft portion of the furnace in which the material to be smelted is charged. 6 designates the walls of the furnace shaft and 7 designates the open side water jackets which form the Wall of the "lower portion of thefurnace, 8 being the crucible or lower extremity of the furnace In this In this view I have shown what I i uppermost cell as shown, and as soon as the water fills this cell it overflows through the overflow pipe 10 and is carried down to the next cell immediately under the top one, and from here the water cascades down through openings 12 until it reaches the lowest cell I outside of'the furnace in substantially the same manner as the multiple cell type previously described. In the single cell type,

however, if one cell becomes in ured, it only need be removed in order to repair the jacket, thus reducing the expense incident to the renewing of a cell to the minimum. Water is introduced through a pipe 15 to the uppermost cell and overflows therefrom through an outlet pipe 16 to the next cell below and so on until the water reaches the lowermost cell from which it is drawn through an outlet pipe 17, each cell between the top and bottom cells having an overflow pipe 16. s As illustrated the complete water jacket surrounding the portion of the furnace below the wall 6 is composed of members of any desired width, one of these members of the multiple cell type being illustrated in Fig. 4, while a member of the single cell type is illustrated in Fig. 6. The vertical abutting edges of these members of each jacket may be joined in any suitable.manner in order to form perfectly tight joints. In the single unit members the cells are arranged one above another in such a manner that they nest together, their lower walls being downwardly inclined from the outer ends of the cells, so that they are normally retained in place after they are properly positioned.

.top as is the regular practice in blast furnaces. My improvement is confined exclu- I sively to the water jacket feature. Hence,

.in other respects the construction may be of the ordinary or any suitable type.

The burning out of water jackets is a constant source of annoyance and expense and in the present practice or that heretofore in vogue, the whole jacket must be removed asv soon as a leak develops. .jackets are very high and unwieldy so that These considerable time is lost in changing them. By. using an open slde water jacket of the .tively arranged. 1 v

single cell type, as shown in Figs. 2, 5 and 6, the repair of the jacket due to the burning out of a single cell only involves the removal of a' small piece of the jacket, there by saving much time and expense. 7 v I There are many places where the use-of the open side jackets of either the single or multiple cell type would be advantageous, such as the side and end walls of a slag separator as used around lead smelting plants. These jackets may also be advantageously employed in lead refineries for.

jacketing the side and end walls of the softening and refining furnaces. They may also be used in connection with copperv blast furnaces. In fact, they may be ;usedal- .of partitions or divisions so arranged as to form cells that are accessible While in use,

the said cells being intercommunicating or arranged to overflow successively from top .most in every instance where heretofore it has been the practice to employ the closed to bottom. This involves the feature of 7 dividing the jacket up into small pockets to obviate water pressures in the jacket that are higher than the pressure in the furnace. The general shape of thejacket may be made to suit the particular furnace to which .it is to be applied. This is a matter of manufacture and does not alter the principle of the jacket. 7 I Attention is called to the fact that the outlet openings 12 of the cells of the multiple cell type jacket and the outlet pipes 16 of the single cell type, of the adjacent cells are arranged in staggered relation or out of vertical alinement. This is important particularly in the multiple cell type, since if the outlets 12 of adjacent cells-were in vertical alinement the overflow from an upper cell would probably drop beyond the cell next below instead of entering it.

Having thus descri b d my invention, what I claim is: Y I

1. The combination with a blast furnace or other similar structure, of a metal water jacket formingthe bosh wall of said furnace and consisting ofsuperposedintercommunicating cells.

' 2. water jacket for metallurgical furnaces composed of a series of superposed infurnace and means for conducting water from the upper portion of any cell to the dependently removable cells, and forming a next 'cell below, whereby the columns of I water in the several cells are non-cumula- 4. A Water jacket for metallurgical furseparable cells forming a Wall of the furnaces composed of a series of independent nace and arranged to overflow successively cells separably arranged'one above the other from one to the other and from the top to 10 and forming a Wall of said furnace, the wall the bottom of the jacket.

5 being inclined for self-sustaining purposes. In testimony whereof I afi'lx my signature.

5. A water jacket for metallurgical furnaces composed of a series of superposed ALEXANDER B. GARSTENS.

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