Патент USA US2123593код для вставки
July 12, 1938. ‘ _ M. VOGEL-JORGENSEN _ 2,123,593 TREATMENT OF SOLID MATERIAL WITH GASEOUS MEDIA Filed ‘Feb; 6, 1937 2 Sheets-Sheet 1 Makf‘aeZ Kayak/0499mm?!” INVENTOR WQ. ATTORNEYS July 12, 1938. M. VOGEL-JORGENSEN ' 2,123,593 TREATMENT OF SOLID MATEKJAAL WIT“ GASEOUS MEDIA Fiied Feb. 6, 1937 2 Sheets-Sheet 2 at? I INVENTOR Mz)%ae& @eh/Eyewem Mk7? . ORNEYS Patented July 12, 12938 2,123,593 - ~ UNITED STATES PATENT OFFICE ' was»: ‘TREATMENT’ OF SOLID MATERIAL WITH GASEOUS MEDIA ‘ Mikael Vogel-Jorgensen, Frederihsberg, near 00- penhagenslienmark, assignor to F. L. Smidth & 00., New York, N. Y., a corporation of New Jersey 1 Application February 8. 1937, Serial No. 124,512 In Great Britain I'Gbl'llll'! 8, 1936 1 Claims.‘ (01. zss-ss) In Letters Patent of the United States No. 2,024,453 dated December 17, 1935 and granted to F. L. Smidth & Co. of New York, N. Y., the ‘ present assignee, as theassignee of Mikael Vogel , Jorgensen, the present applicant, there is shown and described an apparatus comprising a drum; like carrier upon the‘ gas permeable periphery of which the material to be treated, such as ?nely I , divided cement‘ material, or other raw material roller or lip or bar. In accordance with the in vention provision- is also made for preventing the falling of the mass from the carrier under the in?uence of gravity ‘until the treatment of the mass has been completed and also for the 5 maintenance'of a negative pressure or partial _,‘_ vacuum within the carrier‘ to hold the mass against the surface of the carrier and to break such partial vacuum in order‘ to permit the dis 10 which‘may be treated with-gases, is deposited at ' charge of the broken mass- from the'carrie'r at 10 _ one point in the rotation of the drum, is held’ the predetermined point of discharge. The invention will be more fully explained thereon in part by the diiiferentiai of air pres sures at the surface of the mass ontthe drum hereinafter, with reference to the accompanying ‘and on the other surface of the drum and is r ' drawings in which it is illustrated,‘ and in which: Figure 1 is a partly diagrammatic view in sec- 15 '1 ,‘ ; discharged therefrom at another point in the ro tation of‘ the drum where the pressures are equalized, the mass of material being then dis charged irom the drum by the action of gravity. In the continued use of such‘ apparatus andlin its ” adaptation to diverse uses in industry and par ' tional elevation of a simpli?ed form of the ap paratus, from which are ‘omitted details of con struction which will be referred to. _ ‘ ticularly in the metallurgical and cement indus- Figures 2, _3 and 4 are detail vie s of diiierent types of auxiliary supporting devices. 20 Figure-5 is a view in longitudinal section of a e?icient in operation. 'ing shown in elevation, the upperright hand tries ‘it has been found‘ that while retaining the._ form'of apparatus whichembodies the invengeneral principle of operation disclosed in said‘ tion, including- such appurtenances as are to be . Letters Patent some ‘modi?cations in structure described. Figure 6 is a view of the apparatus in ‘partly as ' ; have been found desirable and-it has been the object of the present invention to provide an ap ,sectional elevation as seen from the right hand paratus of the same general type which is more in Figure 5, the lower right hand quadrant be I v The development oi’ the present invention has quadrant vbeing‘ shown in section on the broken line 6-4 of Figure 5, ‘and theremainder of the so been particularly concerned with the attemper ing or sintering of ores, but it will be obvious. apparatus being shown in outline. Flgure 7 is a‘ view in end elevation as seen as this description proceeds that the invention is' capable of. applicationto other speci?c uses from‘ the left hand on the line ‘l-.-'|>_of Fig also with improved results, as for example, the ure 5. Figure 8 is a detail view, in sectional elevation 3g burning of cement or drying of materials. In and on a larger scale than Figure 5, of one of the the particular vembodiment of the invention shown and described herein the construction is ‘valve actuating mechanisms. > _ 30 35 ‘ , The embodiment of the invention illustrated in such that a layer of sintered ore is applieddi- . the drawings is intended primarily for attempert ' rectly to the gas permeablesurface otthe car ,ing or sintering ore. It comprises a grated ro-‘4o 40 rier andv there is then superimposed on the layer _ another layer of ?nely divided ore or other tary :drum is having end' plates i- ‘and ii’,_ mounted on a tubular shaft. l= and supporting outer surface or the second layer the mass of grate bars- _I\1 (a?ording perforations to permit the second layer is ~ignited and attempering or the passage ‘of air or other gaseous medium) which are parallel with the axis of the drumQ-is ‘I sintering of the material is eiiected, the sinter tubular shaft is ‘shown as?closed at one _ ing being carried on in the continued movement The of the carrier until the entire mass is homogenized end, as at i', and as receiving tires l1,‘ resting and formed into a cake whereafter the mass is ' on supporting rollers I‘, and a pulley I‘ through discharged from the carrier and is broken into which thedrum mayjbe rotated. At its other the tubular shaft F is connected to an ex- 50 00 small masses capable of being handled readily vend haust ‘fan i', the tubular shaft‘being' provided‘ ' in the further treatment of the mass, the outer 'with’openings,‘ as at I“, through which the ex suri'ace of the mass when formed on the carrier ‘ material and by the application of ?ame to the haust fan is connected with the interior of the grooves which make it easier for the mass‘ to‘ drum. Radial partitions 8 divide the interior 'ci' ' drum into chambers ‘I and each chamber is 55. ‘at break asit passes at an angle over a’ discharge‘ . being impressed with transverse indentations or ' 9,198,598 ‘ , connectedthrbughaport iwithachamberl'. againstthematerialonthedrumtocompact which communicates with the interior’ of the’ the same. The roller 4 is provided at its ends shaft I0 through the openings In. The interior 'with ?anges 4b which separate the material on of each chamber of the drum may thus be placed the drum, at least at its surface, from the end in communication with the tubular shaft Ic and ‘ walls I‘ and Ib of the drum. The roller l'is also" the exhaust fan II. provided with blades 4° which, as the roller ro-' Each port‘ ! is controlled by a, disc valve I‘ tates through frictional contact with thematerial mounted on a stem 8“ and normally closed by a the drum, are pressed into the material on ' spring 8‘? in a spring housing 8‘. Outside of the --on the drum and mark it with transverse grooves, as I. housing the stem of_the valve, which may be at 4'1, which facilitate the breaking of the cake of 10 1squared to be held from rotation, is- armed with‘ material as it is discharged from the drum. .a?ange l‘andaroller llwhich coactsln the It will be understood that when the material rotation of the drum with a cam rail I‘, whereby is first placed upon the drum and passes beyond at the propertime in the rotation of the drum __ 1s the valve 8- is forced from its seat and the interior or the chamber is placed in communication with 7 the tubular shaft l° and the exhaust fan I‘. the pressure roller 4 and- approaches the vertical axis of the drum in the upper arc of its movement it will be held to the drum throughout the upper I are by its own weight as well as by the suction ‘~ A stepped bell crank lever I“, pivoted at h‘, which, is applied to the interior of the drum coacts with the flange 8' to. hold the valve I‘ through-the opening of the ports 8. when ‘the from its seat after the roller 8‘ has left the cam , material has passed in the clockwise rotation of 20. rail‘! until the upper arm of the'bell crank de the drum beyond ‘the upper arc the in?uence of tent in coacts with a cam rail 8*, thereby dis gravity in holding the material on the drum is engaging the detent from the ?ange Ie and per ‘diminished and lost and it might be that in the :nitting the valve I‘ to be closed by thespring drying out and heating of the material the ma terial might fall away from the drum during its 25 _ In the opposite end wallof each chamber 1 is movement through the lower arc of rotation. a portll forthewdmissionofairtotheohamber‘ Accordingly there is provided an auxiliary or sup '.for the purpose of breaking at the proper time plemental support for nullifying the e?ect of the partial vacuum‘ which has been created in gravity on the material during the lower arc of the chamber by the action of the exhaust vfan I“. movement of the drum and preventing such un 30 This port II is controlled in the same manner as desirable action. As shown in Figures 1, 2. and already described with respect to the port 8 by a 3 such supplemental support consists of an end . valve ll‘, held normally closed bya spring llc and - less gas permeable belt ll carried on rollers l2, ,opened undercontrol of a detent llh by theco l3, l4 and IS, the roller I! being connected by a action of a roller Il‘and a cam rail 8i‘ and closed chain l6 to a counter-weight I‘! for the purpose again when detent II11 is disengaged from ?ange of maintaining the chain belt II in contact with 35 llc by coaction with a cam rail Ill‘. Each valve the material. Such chain belt may consist of controlling mechanism, for the admission of- air bars l8 flexibly connected by wires or chains It, to each chamber 1, may be' in all respects pre _as shown in Figure 2, or by rollers 20, connected cisely similar to the valve controlling mechanism by chains 2|, as shown in Figure 3. This'auxil 40 , , ' for the port 8 and therefore need not be described moreindetailherein. . V Pro-sintered material is supplied through a chute 2 to thegas permeable surface of the grated iary support might also be formed of v rollers I! linked together by chains 13, so that each roller may rotate on its own axis while held in contact 45 carrier drum and forms on the peripheral sur- ‘ with the material on the drum. As the cake of sintered material passes from faceof the carrier drum a layer which protects. the drum over the-‘belt supporting roller l2 and 45 _ the drum from the destructive action 'of the heat‘ is made thereby to change direction it will break developed in the attempering or 'sinfering of-the into small pieces facilitated by the indentations. ~ material which is delivered through a chute I and is superimposed as a layer on the protective layer above referred to; Line 24 of Figure 1 indicates the‘ line of demarcation between the protecting layer of sintered ore and that to be sintered. This line has beenaindicated as extending som 5.5 what more than half way around the drum and at the point indicated by'its end the process of attempering or sintering is presumed tohave been ' completed and the two layers of material amal gamated as a homogeneous cake 0! thoroughly In the operation of the apparatus the perfo rated surface of each chamber ‘I of the drum, as thedrum rotates in a clockwise direction, re ceives from the chute 2 a relatively thin protec tive layer of the pre-sintered material and,imme diately thereafter receives superimposed on the protective layer, from the chute 3, the layer of raw material containing a combustible element or admixed with a fuel, both layers being compressed by the roller 4 and marked by the ?anges and blades of that roller. In the continued movement - _' of the drum each chamber 1, as it passesbeyond The raw material itself containing a combust " the vertical plane, is subjected to suction through ible element or being mixed with fuel and super the described connection to the exhaust fan, the ' imposed on the protective layer of pre-sinfered , valve I. of the chamber being opened by the de material is subjected to the action of flame from scribedmechanism and held open until the cham- ' 65 a burner l, the combustible element being there ber has-passed through the lowermost position, by ignited and burning withpsuillcient intensity whereby the cake of material is held to the sur to eifect a complete sintering of the raw material ‘ face of the chamber by suction or partial vacuum‘ and an amalgamation of the same with the pre within the-chamber against the action of gravity, sintered material of the inner layer. The prog accidental separation of_ the cake from the sur~ ress of the sintering of the material is indicated face of the chamber being further guarded sintered material. . _ by the broken line ll of Figure 1.1 against by the auxiliary support ll. As each Porthepurposeoi'compressingsomewhatthe4 chamber passes toward the point of discharge be layer of raw material mixed with fuel there is yond the vertical axis'of the drum in the, lower provided a roller l which is carried by spring- ' arc of its movement the valve 8' is closed by its ‘pressed arms I‘ and thereby pressed'?rmly~ spring‘ (the detent '8!‘ having been disengaged by 76. 2,123,593 coaction with cam rail 8*) , and at that time the valve 8!9 is( opened by the described mechanism and air is admitted to the chamber to destroy the partial vacuum within the chamber; The cake 5 being thus released separates from the surface 0! the drum and breaks as it moves through the angle over the roller II. This described action takes place for each chamber of the drum carrier and the cake of attempered or sintered homo 10 genized material passes continuously from the discharge point to be received in a receptacle preparatory to further treatment in another ap 3. _ ' . 2. An apparatus as described in claim 1, and in which each chamber is provided at one end with an air suction port-and at the other end with an air inlet port, a valve to control the air suction port, a valve to control the air inlet port, an ‘means-to actuate the valves. 7 ‘ - 3. An apparatus as described in claim 1, and in which each chamber is provided at one end i with an air suction port and at the other end with an air inlet port, a valve to control the air suction 10 port, a valve to control the air inlet port, springs enacting with the valve to close the ports, ‘and means acting on both valves to move .them t » _ ‘ 7 > While the invention has been described herein ‘open the ports. 4. An apparatus as described in claim 1, and 15 with particular reference to the use of apparatus in sintering ores, it will be understood that the , in which eachchamber is provided at one end invention is not restricted to use' for attempering with an air suction port and at the other‘ end with an air inlet port, a valveto control, the air or sintering ores and that the apparatus illus trated may be- used for burning cement material, suction port, a valve to control the air inlet port, springs coacting with the valves to close the ports, or for drying cement materials, or other mate means acting on both valves to move them to open rials, or for any other process'in which solid the ports, a detent for each valve to hold the materials are treated with gases. It will be un derstood. that ‘various changes may be made in valve from its seat, and means to release both details of construction and arrangement to suit 5. An apparatus as described in claim 1, and 26 di?erent conditions of use and that, except as paratus if desired. detents. pointed out in the accompanying claims, the in vention is not restricted to the particular con , i struction shown and described. I claim as my invention: . ‘ 1. An apparatus for the attempering of solid material comprising a rotary drum‘ provided ' ’ ' 15 ' 20 25 in which there is provided an auxiliary gas per meable support to hold the material against the’ drum and to nullify the effect of gravity on the material during the lower arc of movement of the 30 drum. 6. An apparatus as described'in claim 1, and in which there is provided- an auxiliary gas per with a plurality of radial chambers, each cham her having a gas permeable peripheral surface. meable support to hold the material againstthe ‘and closed at ‘its end except for an air suction drum, and nullify the chest of gravity on the 35 during the lower arc of movement of 35 port, means to supply material to be treated to the ', material the drum. the auxiliary support consisting of an peripheral surface of each chamber as the drum rotates, means to subject each chamber to suc tion as it approaches the vertical axis of the drum in the upper arc of its movement and passes through the upper arc of movement, means to terminate the suction as the chamber passes be-' yond the vertical axis of the drum in the lower arco! movement and approaches the point of dis-, charge of the material, each chamber being pro vided at one end with an air suction port and at the other end with an air inlet port, and means toadmit airthroughtheinletport asthecham .ber approaches the point oi.’ discharge or the mata'ial. ‘ - endless gas permeable chain belt, comprising bars ?exibly connected by wires or chains. 7. An apparatus as described in claim 1, and in which there is provided an auxiliary gas per- ’ meable support to hold the material against the drum and nullify the effect of gravity on the material during the lower arc of movement of the drum, the auxiliary support consisting of inter linked rollers, said rollers rotating on their own axes while held in contact with material on the‘ drum. ' VOGEL-JORGENSEN.