DE2137723C3 - Inclined furnace - Google Patents

Description

after An. ™ -, thus ₈ e-

(14) is arranged. Sftschun ^ nkel of the material must be leads this

3 inclined furnace according to claim 1 or 2, data 3 ₃ ^{Boschungswl "K. E} 'g _hrtsbeweeun to the fact that the du'ch in that the intermediate wall slower Abwansbe ^ g ^ _b ^

KÄÄSrir ^ Ä _£ Sc-na. below e ^ l _£

The invention relates to an inclined furnace for Bren- ^^ Ä

Sintering and sintering of lumpy material, such as KaHo- 45 AjJ ™ ^ _n

stone, with an arched, horizontal ^dic ^ ^bc ^ ^d ^ _{h but with} inclined furnaces for burning ceiling as well as an inclined drainage surface, e.ne N ^u ™ _e ^ ^Cll _{Gut a} c reduction of the Sch.cht-

the flow surface opposite, with burners of 'u stuckifcem _{to abböschen} the Mate provided vertical wall and two Se'tenwande ^ d bridge dI "s" h .m _that · _η ^ _hch

limited combustion space; a annten above the top so rials NICM aa _{ähnten bek} the furnace

Arranged at the end of the discharge surface of the combustion chamber, such as ^{the one} _{at the outlet end of} the

th, vertical preheating shaft; e.nem at the lower verengunfc "n" _{ch dne so} arranged

End of the run-off surface is arranged flow chess ^ ™™ ¹ ^ ^Π ° _ίηοη1 the furnace ceiling vertical and a near the lower end he ^d ™ 8 ^ preheating shaft may be a facing into Gebrennerseitigen combustion chamber wall wall 55 ^ ¹ ™ "reduction of the layer thickness of only the Vorwärmschachts arranged below due to the weight falling g ^ _v ^ _{warming shaft s0 strongly}

Drainage area limited narrowed passage. aannc r ^, _{hr dner constipation of the}

In a burning finely divided ma- ve closely ™ ^ ^ _{ht The risk} of encryption

rial like lime, cement, plaster of paris, magnesia or clay die- uurc _{on it) that b (j} . _{de m}

inclined furnace of this type (British patent 6o stuffing for initial heating

script 707 641), in which the material is in the form of a preheating _Jjcw, especially in the case of limestone

thin layer of constant D.cke of about the stuckten Mate _{m expansion} of the Ma 10 to 25 cm, without abzuboschen in the combustion chamber, ode ^ Do Tornu, e ^ ne _Austrei environment of coal

along a slightly inclined flow surface comparable "'^^' ^ '^ the volume _reduces the proportionate quickly" brutschl .st to achieve d "- 65 lcnsaun bcgnnt ^ _{yerengung a, SQ of}

This constant layer thickness of the preheating | '"™" ^e "^ preheating shaft and the furnace shaft to the combustion chamber laterally offset above cut parts of the V _{ensures that the} coal end is protruding outward from the combustion chamber, is not good

3 4

acid expulsion has already begun, so that there is inclined drainage surfaces. The next There is a risk of constipation. the backing up serving as preheating shaft 12

In an inclined furnace, the part of the upper combustion chamber 1U located at the entrance shaft is the layer thickness of the material 5 inclined furnace, which slips off on the drain, covered by the combustion chamber ceiling 14 and the surface of the upper combustion chamber is usually curved upwards. The inclined drainage surface 16 adjoins rials through a cross-sectional narrowing in the material, the outer wall of the preheating chamber, without the risk of clogging Invention space wall 20 is opposite. At its two ends, the combustion chamber is closed in a manner known per se and the ceiling of the combustion chamber 22 is closed by vertical sidewalks of the preheating shaft. The transition shaft that penetrates the drainage area, the material to be treated is filled with the material to be treated in the lower not shown Br ^emv up to the embankment line of this material, space introducing transition _{shaft is marked with 24 De- and} that the passage within the combustion chamber marks. . .,

and through the lower edge of one of the 15 The inclination angle of the drainage surface 16 is larger than the angle of slope of the outflow that enters the combustion chamber through the duct wall into the combustion chamber down into the duct into the combustion chamber the drainage surface protruding intermediate so that the material is usually expended in one and the drainage surface is formed. formed combustion chamber on the drainage surface so aDDo-With such a design of an inclined furnace, 20 will see that the distance between the sicn in which there is a very considerable reduction in the slope line extending from the preheating shaft to the vertical burning layer thickness with a simultaneous increase in the wall of the room α and over the free bed volume, there is a drainage area, no risk of clogging of the narrowed area is constantly increasing. on one side stand or the layer thickness of the material so grou, odu by a relatively thin, of the Brennga- emerging from the burner combustion gases cue _S s impinged wall limited space gclan- layer can penetrate only partially, and QKS eendc preheated material before reaching the also applies to that the free area of the " ^re " ⁿ 'verenu'cn passage has been heated to such an extent that heat radiates from the room. Moreover, the carbonic acid has started to work. caused by the large layer thickness reduced copy-through tion the support of the intermediate wall supporting the in the combustion chamber for the üasdurcnsaiz tm walls in the manner of projecting from the Austrian patent grouting free space is V ⁿ 8 "" ^s "f tentschrift 238,617 known walls In addition, in a known manner, the complete combustion of the liquid ooer on the sieve is achieved in order to reduce the layer thickness within the running surface of the gaseous fuel. While in the case of furnaces without a combustion chamber, a relatively narrow gap between the material and the two combustion chamber wall 26 is provided at a small distance from the support walls in the two lateral areas of the combustion chamber ceiling and from the upper section of the aerrto drainage area, which side walls in öereiui u <^ occurring friction against the inner or the mean in ^ J ^ "" I? ^ ^C, J region of this surface significantly delayed over continuous inner wall of the Vorwarmscnacrvs is is the fact that all areas of the drain across the combustion chamber between the side wall surfaces are flanked on both sides by walls which 22 extends. In the embodiment shown, the two outer areas between a 45 game, the partition between their. In the combustion chamber side wall and a support wall and anchored ends at th walls is supported by relatively • more than one support wall or the middle narrow support walls 28

range between two supporting walls, the same as from the F i g. 1 to 3 can be seen, the ^ wi-

Abi.nfgeschwindi ^ U in a "e" areas, cherge- ^ ^^ ¹ ^ CX Sht, £ Ä

An embodiment of the invention) from sluice walls or between d.esen ™ d Jnß stalKlen inclined furnace is referred to in the following part of the "Umseuenwani en 22 lying ab chnmeder

^h t "zz r ^d * ^rZeichnu " ^8techricben · S ¹ ZiS-Sm '^ fAr ₂ Ur

'; , ei ", M ^g iuen» n ₈ ssch "i" through the upper 5 _S SniTchien in R.ch.ung "on the surface .6 ge % S iftSrSSt P ... in P, ei, ric g TS ^^^ St £

Fg3 a section 3-3 of FIG. 1 in the direction of the arrow wall below this wall along ciner yj

J "* ^& 60 lower than the line α slope l

^g Fig. 4 is a view corresponding to Fig.l, whereby ^ '\ ^dn \ "^

£ ^ converted form of an oblique -g ^ Sdjhgjc as

a section 5-5 of Fig.4 in the direction of the arrow is ^ ^^ ^ ^^ ^

⁸ In the figures, only the upper combustion chamber 10 is shown from near the lower end of the drainage surface 16 of a Do _PP inclined furnace, which consists of two transitional points vertically towards the oe "- mutually arranged combustion chambers with an opposing wall, then horizontally up to the in

the lower end of the preheating shaft and then! ; sloping downwards to the drainage surface.

In the embodiment according to FIGS. 1 to 3, where between the top of the partition 26 and the combustion chamber ceiling 14 a relatively narrow one that extends over the entire width of the furnace If there is a gas passage gap, the support walls 28 can also extend up to the combustion chamber ceiling be pulled up and then help to support the ceiling.

Additional support for the ceiling is also required in the case of the FIG. 4 and 5 achieved embodiment shown, in which the support walls or that of them carried partition wall to directly under the preheating shaft are carried out so that the vault, that carries the side of the preheating shaft facing the burners, by three accordingly smaller and therefore safer and more durable individual vaults can be replaced here does not need any gas passage gap between the There must be a partition and the final vault of the preheating shaft. The entire flow the combustion gases rather go down around the partition wall. An advantage of this arrangement is that the combustion chamber has a much greater width by using three vaults instead so far one can have, whereby the large free area of the combustion chamber, which is important for the combustion

ίο is retained.

The burners 18 are arranged so that they are opposite to the combustion chamber sections, the side be delimited by the two supporting walls or by a supporting wall and a side wall 24. It thus three burners are provided in the embodiment shown, which are preferably individually adjustable are so that the individual sections according to the existing in them different Slip speeds can be heated.

1 sheet of drawings

Claims (1)

PMen, »nspruc„ e: SSISÄiÄÄ. - ΒΓ = Mn 1. Oblique to burn and read from * X ''"^ _c ° SiäL ™ i £ nde en ^ th place the see vertical wall, and two side walls ^wa ™ ^S _n ^ch S ^ S _{a ig,} slightly inclined, partially delimited combustion chamber; INEM obe- above the "o" ^ en ve "srnaü g ^ _{s of} ren end of the flow area of the combustion chamber Toggle ™ ^" ^ ^ hra ac ^ y _elevated parent, vertical preheating shaft; e.nem end for heating _{Henden M} aterialschicht Sm lower end of the AMauffWche arranged ™ ^ ^ * ^ Εη be ™. The already largely drainage shaft as well as one near the lower combustion gases emgei _{then under reversal} . End of the burner side combustion chamber wall i _S "^^^ ™ _u ^e n _ntere end of the upper Schrag facing wall of Vorwärmschachts Toggle ner ^{s? hic} ™ ^un 8 * """set inclined lower orderly, below by the drainage surface be ^. ^^ f ^ TSrtwede / duidi also a limited narrowed passage, thereby inclined shaft, _f J ^obei _upward currents nd gases d, ek e η η ζ eich η et that in an s.ch better known as Durchlaß tu aie _dufch ^ _{ye ö} . Way, the preheating shaft (12) ends the ceiling (14). 1re ^ ™ ₈ Gasdurchtnttsoffdes combustion chamber penetrates the ^obe to the loading voltage ^al * ^ ^e _a ^r _{uffläcne of the} upper shaft vorhandelnden material to zur_Boschungshn, ed, NMG e nn filled Am ^^ ^^ _{via contact} ses material, and that the passage is seen, is located within the combustion chamber (10) and through _{yon stücWgcm} material, the bottom edge may be a * _{5 union} of the combustion chamber ceiling At h ^ ^e ™ is ^to schrägöfcn to Behan- (14) near the preheating duct on the burner side - like Ka kst «n, ie _thin compared to wall in the combustion chamber (10) downwards in Rieh- your ^ smckigen M, _{a amcre} downwards Lt ^ rSf``ISA "SAW ^ AS: