US395644A - adams - Google Patents

Description

(No Model.) 4 Sheets-Sheet 1.

0. T. X. ADAMS.

SLAG FURNAGE.

Patented Jen. 1, 1889.

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0. T. X. ADAMS.

SLAG PURNAGE.

No. 395,644. Patented Jan. l, 1889.

N. PETERS. Phnlouthugmpher. washington. 11C.

(No Model.) 4 Sheets-Sheet 3.

' O. T. X. ADAMS.

SLAG PURNAGE.

Patented Jan. l, 1889.

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(No Model.) 4 Sheets-Sheet 4.

0. T. X. ADAMS'. SLAG PURNAGB.

No. 395,644. Patented Jan. 1, 1889.

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Nirnn STATES PATENT Yrtree.

( )RSEMAS T. X. ADAMS, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE AMERICAN SLAG FU RNACE COMPANY.

SLAG-FURNACE.

SPECIFICATON forming part of Letters Patent No. 395,644, dated January 1, 1889.

Application filed May 2l, 1888.

T all wil/0m t may concern:

Be it known that I, ORsEMAs T. X. ADAMS, a citizen of the United States, residing' at Chicago, in the county of Cook, State of Illinois, have invented certain new and useful Improvements in Slag-Furnaces, of which `the following is a specification.

The object of my invention is to construct a slag-furnace whereby the great heat of 1o molten slag that flows from a blast or smelting furnace maybe utilized in the generation of steam by bringing water into contact with it, and to provide means for so treating and governing the steam-generator as to afford a continuous Vuniform supply and pressure of steam for use, and to provide means for automatically governing and operating the operating parts of the generators by the steampressure within them 3 and my invention consists in the combination and relation of parts and features and details of construction hereinafter described and claimed.

In the drawings, Figure l is a top plan of my improved slag-furnace, showing two furnace or generating chambers with their various attachments and parts, the steam wash, storage, and regenerating chamber with its attachments and parts, the feed-water-heating drum or tank, and the pump for forcing the water through the various water feedpipes; also showing the various water and steam pipes and valves connecting the several parts together, and also showing' the relations of the several parts to each other. Fig. 2 is a Vertical longitudinal elevation and section of Fig. l on the line 2, looking in the direction of the arrows, sliowing a side elevation of.' one of the furnace or generating chambers with its valves and connections, the

steam-cylinder attachment, for raising and lowerin the sliding valve-plate, and the wash, storage, and regenerating chamber with its exhaust-steam pressure-reducer in section, and its other attachments and connections in elevation. Fig. 3 is a longitudinal vertical section of one of the furnace or generating chambers on the line 3 of Fig. l, looking in the direction of the arrows, with a slag-vessel located in the chamber, and with most of the 5o attachments and connections removed, de-

Signed to specially show the sliding valvey serai No. 274.458. (No model.)

plate and the design of the upper part of the valve-plate box. Fig. et is a vertical crosssection and elevation of a part of Fig. l on the line 4, looking in the direction of the arrow, showing the diaphragm attachments for automatically operating the feed-water and auxiliary exhauststeam 'valves in section. Fig'. 5 is a longitudinal vertical section of one of the furnace or generating chambers, show- 6o ing a modification in its shape to provide means for a drainage pipe or passage, showing the chamber and slag-vessel longer, the main water feed pipe or passage entering near one end of the chamber with several auxiliary water feed pipes or passages entering nearer the main steam-exhaust pipe or passage, the main steam-exhaust pipe or passage communicating near the opposite end of the generating-chamber from the main water-sup- 7o ply passage and showing a passage located in the top side of the furnace or generating chamber provided with means for opening and closing the same, whereby the molten slag may be poured or emptied into the slagvessel while it is in the chamber and the sliding or end valve is closed. Fig. 6 is a cross vertical section of Fig. 5 on the line G, looking in the direction of the arrows, showing the trough or groove in the bottom of the 8o chamber for drainage purposes, the slag-vessel in the chamber, and the passage for pouring or emptying the molten slag therein through the top.

In the drawings, A is the furnace or generating-chamber shell or walling; A', the furnace or generating-ehamber; a, the sliding valve-plate boxing; ai', the sliding Valve-plate a2, metallic or other pliable packing in the same; a3, the removable head to the box a; 9o B, the engine or cylinder for opening and closing the valve-plate through the rod at; b, the diaphragm attachment; b', the lever operated bythe same for opening' the auxiliary steam and closing the water valves b2 and 193,'64, 9 5 an extended arm, operating the rod a4 for opening said water-Valves and closing said steamvalve; C, the main steam-exhaust pipes from the chambers A; C', the auxiliary steam-exhaust pipes; c, the main water-supply pipe to roo the furnace or generating-chamber; c', Fig.

, the auxiliary water-supply pipes; c2, safetyvalve and exhaust-pipes from the generatingchamber; D,the steam wash, storage, and regenerating chamber or drum; D the pressurereducer from the same; D2, the exhaust-pipe from the same; d, the steam-gage on the same; d', the safety-valve on the same; d?, diaphragms or partitions in the same; E, the feed-Water-heating tank or drum E, the pump for forcing the water into the various chambers; F, Fig. 5, the secondary passage or pipe in the top of the generating-chamber, through which to pour or pass slag into the slag-vessel while the same is within the generating-chamber; j', a drainage groove or trough inthe bottom of the gelierating-ehamber for drainage purposes; f, a depression or recess at one end of the chamber, into which thetrough empties, and f2, a pipe or passage from the recess or depression j".

In describing and referring to the furnace and steam-generating chamber I will term it the "generating-chamberg but it will be understood that this chamber is properly a furnace-chamber in addition to a generatingchamber, and I will also refer to and term the steam wash, storage, and regenerating chamber or drum as the "storage-chamber? but it will also be understood thatv the important office of this chamber, with the water contained in it is to wash and cleanse the steam and bring it to a uniform temperature in addition to condensing and regenerating the same under the varyingv degrees of pressures and temperatures exerted by its connection with the two or more generating-chambers in which steam is generated irregularly in consequence of these chambers being repeatedly filled with hot slags, cooled, emptied, and relilled, as well as forstorage purposes.

In making my improved slag-furnace for the generation of steam I construct one or more chambers, preferably to be operated in conjunction with each other, in many respects like the one described and claimed in certain applications for United. States Letters Patent filed by me April 2, 1388, Serial No. 269,220; but in addition. to the features shown in that. application I preferably provide a sliding valve-plate, c', composed of two pieces, to open and close the main passage for the introduction and removal of slags to and from the generating-chamber, as shown in Fig. 3, and adapted to be forced apart or in place by the wedge ai when the plate is down or over the passage to be closed, and I arrange a soft metallic, wire or ring, a2, preferably by pressing into a groove for the purpose around the edge of the said plate in such a manner as to afford a packing or bearing to render the valve steam-tight when there is a downward pressure of the rod a4, and consequent down.- ward movement of the wedge ai', or the internal steam-pressure of the generating-chamber.v i The object of this soft metallic packing is t0 afford a soft bearing-surface to make the steam-tight joint, so that in the event of small particles of dust or foreign substance getting or lodging on the surface upon which it bears it will yield to the said subst-ance and still come in close and absolute contact with the bearing-surface where the steam -tight joint is required. I preferably make this soft packing of copper, and secure it so as to be removed and replaced, although other soft metallic substances may be used, or any other suitable substances-such as rubber packing-may be substituted. I also provide the upper extended end of the val ve-plate box with a removable head, aiwhich may be taken olf by removing the bolts with which it is secured, and thus leaving a free passage for the removal of the valve-plate by lifting it upward and out of the box. The object of providing this means for removing the valve-plate is to afford free access to it for t-he removal and replacement of the packing a2 when the same has been worn out. I also provide, preferably, a steam engine or cylinder, B, mounted upon and secured to the extended upper end of the boxing a, through which, by the upward-extended end of the rod a", the valveplate is raised and lowered.

As the arrangements of these parts and their operations will be readily seen and understood by reference to Figs. 2 and 3, I do not think it necessary to further describe them,and while I have only shown and described one means or design of placing or inserting a soft metallic or other suitable packing in the sliding valve-plate, I do not wish to conline myself to this particular method of accomplishing this object.

To provide means for automatically operating the water-supply and auxiliary steamexhaust passages, I provide a diaphragm, b, for each of the gelierating-chambers communicating with the same and arrange an extended lever, b, secured and held at one end to the diaphiagm, as shown, especially, in Fig. 4f, to be operated or moved up and down by the upward or donf'nward motion of the diaphragm l), which is made in quite the ordinary way of spring metal. This extended lever is hinged, as specially shown in Fig. 4, so that the end opposite from that attached to the diaphragm will raise or be raised as the diaphragm recedes or sinks, and through its ratchet e will raise the handle of the valve b, as indicatedby the dott-ed lines in Fig. 4,

and thus open the auxiliary steam-exhaustpassage valve b3 and allow the steam in the generating-chamber to escape through the auxiliary steam-exhaust pipe C and be condensed in the tank or drum E, and, as will be readily seen in Figs. l and 2, the water-sup- 'ply pipe or passage c and its valve b2 are placed so as to be connected to and operate in conjunction with the auxiliary steam-exhaustpipe valve b3, and the arrangement of the handles upon the valves is such `that when IOO IIO

they are raised upward by the extended end of the lever D and its ratchet@ the water-supply passage will be closed, and the auxiliary steam-exhaust passage will be opened by the same movement. It will be seen that when the handles b2 and b3 are clear up the ratchet c will become disengaged from them. 'hen the slags have become cooled and through this operation the supply of water to it and the generating-chamber has been shutoff, and through the auxiliary steam-exhaust passage all or about all ot' the 'steam within the same has been relieved, and the consequent internal pressure, the sliding valve-plate a may be raised by means ot the engine or cylinder B, and the cooled slags removed through the passage atlorded by the opening or raising ot the saidV valve-plate, when the cooled slags may be emptied and a fresh supply or quantity of hot or molten slags be placed in the slag-vessel, which then may be returned into the chamber, when through the operation of the said engine I the valve-plate may belowered or dropped and the generati ng-ehambel.' again rendered steam-tight.

I also preferably provide an extended arm, b, connected to the upper extended end of the rod ai", and so crooked and shaped that while the valvt-i-plate and the rod a" are being lowered this extended arm through its ratchet b5, as shown in Figs. l, 2, and l, will press the valve-haiulles 'b2 and U downward, closing the auxiliary steam-exhaust passages and opening the water-supply passage, thus permitting the water to How on the freshlysnpplied hot or moltenv slag in the generating-chamber. This extended arm L, it will be seen, is to operate the valves and handles b2 and b3 in a reverse direction from the diaphragm-lever IJ', so that .in this manner when a fresh quantity of molten or hot slag has been placed in the generatilig-chamber, and as the valve-plate is lowered or dropped, reudering the chambers steam-tight, except the auxiliary steam-passage,` through this extended arm bt and its ratchet b5, the auxiliary steam-exhaust passage is closed and the water-supply pa ge is opened, permitting the water to pass or to be passed in the chamber and in contact with the heated slag until ithas been cooled so as to allow the steam-pressure within to sufiiciently decrease to permit the diaphragm to recede and operatel the le-` ver b to again close the water-passage and open the auxiliary steam -exhaust passage, when the operation of the removal of the cooled and refilling with hot slag may be repeated.

Of course it will be understood that the` main steam-exlmust pipe or passage C is provided with a cheek-valve, e', as described in my application, Serial No. 260,229, referred to before, and as shown in Fig. il. This main steam-exhaust pipe preferably comnuinicates by the pipes C2 with the storage chamber or receiver D, so thatahigh pressure and supply of steam within. the chamber A will be relieved by opening this check-valve and allowing the steam as it is generated to pass through this valve and into the storage chamber or receiver as long as the slag in the generatin g-ch amber remains sufficiently hot, and I also preferably provide a safety-valve, c2, for the relietl of an extreme internal pressure in the chamber A. Ihile I have shown and described an automatic attachment for operati ng the water-supply and auxiliary steam-exhaust passages as a diaphragm attachment, I do not Awish to confine myself to this particular mechanical means of accomplishing this end or result, as various modifications may be made. I wish to resta-ve the right to use any mechanical means of automatically operatingI or opening and closing the water-supply and steam-exhaust passages by the varying degrees of internal steam-pressure of the generati11g-chamber in this connection.

As before stated, I preferably operate two or more of these generatirig-chambers in conjunction, as shown Vin Fig. l, and connect their main steam-exhaust pipes C to a common steam-pipe, (22, and preferably use a steam storage, wash, and regenerating chamber, D, or which, as before stated, I will term as a stean'i-storz'tge drum, into which I introduce this common pipe (l2, so thatthe steam generated in the two or several generati11g-chambers will pass into this sttin'age-driun. I also pret'- erably arrange one or more partitions, d2, in this drum D, as shown iuFg. 2, part of which I extend transversely inside of the drinn from the top side to below the water-line, which I maintain at aboutthe level Zero, Fig. 2, in the drum, and also preferably extend one or more oll the said partitions d2 from the bottom of the inside of this drum to above the waterline. This main or common steam-pipe C2, communicating with the various generators, I preferably connect with the drum D at its upper side and near the end. I then preferably connect the steam pipe or passage D?, from which the steam for use at an engine or other place is to be taken with the steampressure reducer D, communicating with the drum D at its top side, near the opposite end from the entrance of the pipes (f2, thus necessitating the steam that passes through the drum D to pass under and over the partitions d2 and through the water in the drum. The object ot' the pressure-reducer is to reduce and even the pressure ot' steam that istaken for use from the drum D, in which the pressure may be excessive or uneven, raising and lowering as the slag in the generators is changed. I also preferably provide a steamgage, d, communicating with drum D and the safety-valve d, to let olf excessive pressure that may occur.

rlhe arrangement of these parts will be readily understood byan examination of Figs. land 2, so that I do not deem it necessary to further describe them, and while I have described the steam-pressure.reducer as being located on the steam-drum D, this drum may be dispensed with, if desired, and the pressure-reducer located on the main steam-pipe, as indicated by the dotted lines D in Fig. l. The

object of having or using water within the IOO IIO

drum D and using partitions (Z2 in this manner is to require the steam that enters and passes through the drum to be forced under and over them and through the watercoutained in it, which will collect any impurities or dust that may be carried vfrom the generating-chamber, which might injure an engine if it were pern'iitted to remain in the steam while being' used, and in this manner the steam is washed and cleansed and rendered pure before being used.

Another object of having waterin the drum and forcing the steam through it isthat when there is an excess supply of steam from the one or several generators occasioned by a renewal of the hot or molten slag' within them, which excess supply will be at a higher temperature than that in. the storage-drum D, and will alsoY occasion theprcssure within the said drum to rise, when the watercontained therein will collect and condense the hot steam under the rising or ascending pressure, and retaining it in a liuid state until such time as the slags within the generatiiig-chamberhave become so cooled as to allow a decreased. supply of steam at a lower pressure and temperature, and in consequence allow the pressure within the drum D to decrease, at which time the excess steam before generated, supplied, and condensed in the water, as described, will regenerate and supply such deficiency of steam as may be occasioned for short periods in this way. So it will be seen that the wat 3i.' in the drum serves the purposes of storing the steam and evening its temperature and pressure by condensation and regeneration, and of washing it and cleansing it by collecting' and retaining particles of dust and other impu rities that may be carried from the generatingchamber by the steam. I design in the operation of these parts to set the steam-pressure reducer D in such a manner as to retain the pressure within the generati11g-chambers and storage-dru m D considerably higher or greater than that supplied for use by 'the pipe D2. In this way, by the aid of the steam-pressure reducer and the water contained in the drum D, which serves, as described, the purpose of washing or cleansing the steam, bringing it to a uniform temperature and in a measure to a uniform pressure, I am enabled to supply steam continually at the uniform pressure to the engine or other place of use through this pipe D2.

In Fig. 5 I have shown the generatingp chamber somewhat modified, making the same longer and with. a groove, f, lengthwise of the chamber in its bottom side, preferably slanting or inclining from the back end of the chamber toward its front or sliding valve end, and preferably terminating in a recess o r depression, f, near this end, as shown in Fig. 5, from which I arrange a suitable drainage pipe or passage, f2, the object of these being to collect and carry off such water as there may be unconverted into steam when the slags have become cooled and ready for removal from the chamber, although, while I prefer to use these arrangements, they may be dispensed with, if desired. I also construct the slag-vessel B2, Fig. 5, longer in like proportion to the chamber A and arrange the 'main Asteam-pipe C to communicate with the chamber A near one end. I then connect the main water-supply pipe c near the opposite end of the chamber, and preferably provide two or more auxiliary water-supply pipes or passages, c', with the generating-chamber nearer the exhaust-pipe C, as shown in Fig. 5. The object of this arrangtmient of pipes or passages is that the water injected through the pipe r' will be con verted into steam and be well heated and rendered dry while passing over the slag' to reach the exhaust-pipe C at the opposite end, and the auxiliary pipes C will supply a su liicient quantity of water to prevent the steam from becoming too highly heated inv t-hc manner described. Ihave also arranged and shown a passage, F, which I term an auxiliary slag-passage through the top of the generating-chamber and adapted to allow hot or molten slags to be poured or emptied through it into the slag-vessel D2 while it is in the generating-chamber. This passage may be closed by means of the cock F or other convenient means, when a desired quantity of slag has been placed in the slagvessel. The special. features shown in Figs 5 and t3 and described are designed to be used, if desired, on all of the generatiiig-chambers, they only being shown in these figures as modifications for convenience and to enable a clearer comprehension of the parts.

It will of course be understood that there is a steam-pump, E', or other sufficient means employed Vfor forcing the water in the generating-chamber and storage chamber or drum, and the drum or tank E is used to heat the feed-water by means of the steam from the generating-chanibers that is exhausted preparatory to opening them 'for the removal of a cooled slag.

The method of operating my slag-furnace is to open the sliding valve-plate, pour a desirable quantity of hot or molten slag in the slag-vessel, and place the vessel containing the slag in the chamber, and drop or close the valve-plate; or, where the auxiliary slag-passage F is used, the vessel may be placed in the generating-chamber empty and the sliding valve-plate closed or lowered and the desired quantity of hot slag poured or placed in the vessel while it is in the chamber through the auxiliary slag-passage, which may then be closed by the means provided for the purpose. In the latter case the water-supply pipe or passage may be turned on by hand; or, if

the valve-plate is not closed until the hot slag has been placed in the vessel in the generating-chamber, the rod a4 in its movement downward, by means of the arm b4 and its ratchet b5, moves the valve-handles b2 and b3 downward, thus opening the water-supply pipe or )assao'e and closinfl the auxiliar f steam-ex-v p r D` D IOO IIO

haust passage. The water thus introduced is generated into steam and cools the slag, and the resulting steam opens the check-valve and passes off into the storage or wash drum, when one is used, and at the same time the steampressure within the generatiiig-chambers will extend or press the diaphragm-plate upward, and through its lever b the ratchets e engage into the valve-handles h2 and b3, which have been pressed down by the rod a4, arm h, and ratchet b5, or otherwise, and as the slag becomes so cooled as not to generate a sufficient quantity of steam to sustain the high pressure within the generating-chaiuber the checkvalve in the main steam-pipe will close, and the decreasing pressure in the generatingchamber will allow the diaphragm, which has been distended by the high steam-pressure, to recede, and thereby through its said connections ai, b4, and lr will shut off the water-supply and open the auxiliary steam-exhaust passage, and the remaining steam will exhaust t' rom the generatiiig-chamber and will be condensed in the feed-water-heating tank. Then the sliding valve-plate may be opened and the cooled slag removed, and the operation repeated. When the wash and storage drums are not used, the pressure-reducer may be used upon the main steam-exhaust pipe, or, preferably, upon a common steam-pipe connecti n several gencrating-chambers. lt will be seen and understood by reference to Fig. fi that the ratchets e and lf will bediseiigaged alternately from the handles b2 and b3 at the proper time to permit the other to become engaged with and act upon them.

l prefer to retain the mean stean'i-pressure within the gelierati11g-chambers and storagedrum somewhat higher than the desired pressure for use at the engine or other plac-e to insure, through the aid of the pressure-reducer, a constant desired pressure for use at all times.

\Vhile l have termed my invention as a slag-furnace and used the word slag all through the specification, and shall use the same term in the claims, I wish it especially understood that it is applicable to the treatment for the generation of steam of any hot or molten substance, such as iron cinders, hot ores, and metals; hence l do not wish to conne myself to the use and treatment of slag, but wish to reserve the right to use any hot or molten material that can be treated in this manner in my furnace.

That l claim as new, and desire to secure by Letters Patent, is-

l. In a slag-furnace, the combinationof one or more generating-cliambers having feed and steam-exhaust pipes or passages thereto, one or more passages to the said chamber or chambers for the introduction or removal of slags, one or more valves having a sliding valveplate composed ot' two plates provided with means for raising and lowering said plates, and means for spreading or forcing them to their seats to close the said passage and render it steam-tight when they are lowered, substantially as described.

2. In a slag-furnace, the combination of a steam-generating chamber, water feed and steam-exhaust passages thereto, means for opening and closing the same, a passage to the said chamber for the introduction or removal of slag, a valve having a sliding valve for opening and closing the same, and a packing for rendering the steam-valve tight when down and in place, substantially as described.

3. In a slag-furnace, the combination of a steam-generating chamber having one or more passages for the introduction or removal of slag, means for opcnin g and closing the same, one or more water-supply and steam-exhaust pipes, and means for opening and closing one or more of the pipes, substantial] y as described.

4. In a slag-furnace, the combination of a steam-generating chamber having one or more passages for the introduction or removal of slag, means fonl` opening and closing the same, 011e or more water-supply and steam-exhaust pipes or passages, means for opening and closing the same, and a di aphragiii-regulator communicating with the said chamber and connected with pipe or pipes, as described.

5. rlhe combination, with a slag furnace having one or more steam-generating chambers, one or more passages theretov for the introduction or removal of slag, means for opening and closing the same, one or more watersupply and steam-exhaust passages or pipes, and means for opening and closing the said pip es or passages, of a steam wash and storage drum or chamber having plates forI forcing, driving, or dei'lecting the steam that may pass through it into or through the water that may be contained in the said chamber or drum, and a pipe or passage for the steam to pass from the generating-chambers to the said wash and storage chamber, and a pipe or passage for the steam to described.

6. The combination, with a slag --furnace having one or more steam-generating chambers adapted to receive hot or molten slag, and means for opening and closing the same and provided with water-supply and steam-exhaust passages, of a steam-exhaust pressurereducer communicating with the said chamber or chambers in such a manner that the steam will pass through the pressure-reducer before being used, substantially as described.

7. The combination, with a slag furnace having one or more steam-generating chambers provided with means for operating the same, of a steam-generating storage-chamber having a passage for the steam to flow from the generating chamber or chambers to the said storage-chamber and a steam-pressure .reducer communicating with the said storagechamber through which the steam from the said storage-chamber must pass for use, substantially as described.

8. In the combination of a slag-furnace, a steam -generating chamber having a main pass therefrom, substantially as IOO IIO

passage for the introduction or removal of slag', means for opening and closing the same,

' one or more Water-supply and steam-exhaust passages, and an auxiliary passage Vfor the introduction of hot or molten slag', havingl means for opening and closing the same, substantially as described.

9. In a slag-furnace, the combination of a steam-generating chamber havin g one or more passages for the introduction or removal of slag7 means for opening and closing the same, one or more Water-supply and steam-exhaust pipes or passages thereto, means for opening' and closing,Y Ihe same, and a drainage pipe or passage from the said chamber, substantially as described.

l0. In a slag-furnace, the combination of'j'a steam-generatin g' chamber having' one or more passages for the introduction or removal ol slags, means for opening and closing the same, water-supply and steam-exhaust pipes, and a groove in Jbhe bottom of said chamber communicating with a recess ai; one end, and a pipe or passage l rom such recess, substantially as described.

oRsEM/is T. ADAMs.

Yitn esses:

ORRIN I3. PECK, XV. H. PORTER.

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