DE1571685A1 - Process for rust coking of fuel moldings - Google Patents

Description

"Process for the rust coking of fuel form lines".

The invention relates to a method for coking Burn off-press on grate.

The increasing economic efficiency of the classic coking process has led to the development of so-called "autogenous" coking. According to this procedure, originally nine coal sluices about Λ / km high were opened on a winter door and "i of these" were transported by a coke bureau. From below, air streams through the grate and the clump guard above, burning some of the gas escaping from the coal and thus supplying the required heat exchange rate.

Since no coke that could be used in the blast furnace could be produced with this procedure, he took over the possibility of compressing the coal known from classic coking and made hackstone-like coal trout from ground coal in a press plant, which was then eaten on the diet coked.

The object of the Knhlensteine erfolft previously so, d * A c in this Länffiriclitunr of the grate; eschlo.ssene _f about 15 meters wide

$ 09883/0357

and form about 1.5 m high strips of coal, whereby through one located between the individual coal strips Gap approx. 6 to 7 approx. Width through the air as before the grate flowed from the bottom up. and there part of the gas emitted from the coal burns.

The stripe width of 15 ca er however only allows one height fer a column of coal of about 1.5 ■, since this height is only about 8 to 10 times the detection width.

This kind of coking is more economical than that normal chamber coking, which could be profitable but will be greatly improved if it were possible to put a considerably larger scythe in the dyke tent to coke on the local rust curse. It also coaat added that the cooling of the Rosthei ages only la area of the Splitting can take place, but not for the surfaces where the strips of coal stand.

It is the object of the invention. by, special shape The throughput of the coal bricks can be increased considerably with the same grate surface and the grate surface is better to cool or to protect from the daylight.

This on trabe is solved in that angularly shaped Coal stones or Segeente of a circular ring forming Coal stones, if necessary ait from bottom to top continuous channels provided, so placed on the grate that they. as with the previously known methods, form coals that are closed in the conveying direction. At the same time, the rust in the gaps between the Coal strips old from a layer of coke, grain size approx 5 to 10 on, covered in a thickness about that of the greetings Wall thickness of the coal foralings corresponds. Due to the angular or circumferential FerageWn «der The width of the supporting surface b «i is used in the form of coal

003883/8357 sad original

same or considerably less wall thickness than before for example doubled, thereby also doubling the height of the coal strip becomes a requirement. In the formlin? T> n can be cylindrical, rectangular, or some other shape possessing. "from below to above reaching and / or horizontal running channels through which a further VerrlnKerune the wall thickness and thus an additional Shortening of the coking time is achieved ·. Also There are then no unremarkable unffek'ihl ton rocks of the Itostbefages more.

The wall thickness can, for example, be only ^r > cm instead of the previous 15 cn, without reducing the new layer length of zn 50 cn. This means that now a Brennetäffhöhe of zH 3 ■ can be eaten for the coal strips.

The distance between the individual strips of coal corresponds to the cröeten wall thickness of the bricks and amounts in all to one less than 7 cm. He is to be kept as close as possible, that in Tranportriehtunr no straight passage for the This is the case, therefore all of them Windings of the coal strips aitnachen aifssen.

The coke emerging from the coking plant is in looks like different grains. Part of the coke crust Kctrnung 'about 5 to 10 ■■, will be given at entry into the coking plant into the crevices between the coal strips abandoned on the rout about as high as that

the
large wall «tHrk * / ITohlenformlinge amounts, s..R. 5 approx. Through this coke rus the pressure loss of the air that is scattered into the crevices is somewhat increased, and therewith also the air constrictions flowing through the channels of the coal form. In addition, the Rosthelae is protected from the radiation of the scorched lawn. Furthermore, aie WnrmetrHger. Eg flue gas from the combustion of other fuels or the flasea from the coking plant now

009183/0367 _{ad oR1G1NAU}

157168 ^

can also be guided between the gaps from above or parallel to the grate path, for example at the end of the hoop obliquely downwards towards the start of the grate. In the extreme Case, for example, only flue gas can be used as a heat transfer medium be or z.H. also air alone in the middle of the. Grate to be fed from above so that one half towards the end of the grate, the other towards the beginning of the grate flows. By this measure only the area of the Dragged Gasahgahe out of the coal. Air applied to the Areas of low gas emissions with hot ones, from the gas-rich ones Area coma, deoxygenated or deoxygenated Gases. The result is faster: heating up and also a reduction in carbon burn-up.

Tm further development of the invention can instead of the coke breeze the whole grate can be covered with thin carbon plates, e.g. 3 cm thick, on which the carbon strips are placed are. The JVäraetrneer is then added by Above, the grate is no longer flowed through and is slit in front of the irradiation from the combustion vents. Of the Rosthelag is needed from below by in the process Air-cooled or fiasmeneen, which are directly in the longitudinal direction Flow under the grate into a channel, the upper one of which Completion of the grate itself is re-formed.

Hei games for the design of angular or similar

nrennstöff moldings are shown in Fig. 1, a to h,

Fig. 2 such stones in closed strips of coal

on the grate belt, in which the distance from each other is chosen so that there is no straight passage between the

Stripe is only ·. : Fig. 3 and k show schematically two possibilities for Management of the heat carriers.

The grate hand 1 conveys the nrennstöffreihen 2 of the briquettes through the coking space 3 from the entrance formed as a sluice k door drop point 5. The air is in

009883/0357 ^{ßAD 0RIG |} nal ^{m /} \

the zones (> and 7 from below through the grate, in their Canteens adjustable, in the crevices / wipe the coal strips 2 added and by the outflows <* and 9 after the Sides abcezopen (Fig. 3).

In Fig. 4 the air supply takes place on two side by side located points 10 and 11 from above in the middle of the grate, preferably at an angle in the direction of the \ bzuesstellen S and 9 · Her grate is complete with a layer of dfinner Carbon plates 12, ζ.Π. 3 cm thick, covered, on which the carbon strips 2 stand. It flows through the grate Fall neither air nor any other means. He is through direct, untnr fie-ni Rostbela? in I .messrichtuns in a channel 13 Flowing upward or nasal pens ecooled. where the HOstbeiac the upper cover of the channel 13 forms. The preheated one Luft- or Casmenffe is then added to the coking process / uses.

-l'nt apply check-

0098 * 3/0367

Claims (5)

- 6 - 9.11.66 Pa 6 (Λ9 Sch / ßo patent claim * »————« · - "·" · »——- · ———— · - t 1.) Process for coking fuel for ·! Ingen on the grate with direct heat transfer from the iVSnmetrhger to the Fuel, characterized that angled or annulus segments forming, if necessary Fuel-Formiinge provided with vertical and / or horizontal channels or recesses in closed Strips are placed on the grate belt in such a way that the preferably in the area where the fuel emits a lot of gas fed, in the longitudinal direction of the grate in the columns outflowing air or that preferably added at the end of the grate low-oxygen or oxygen-free heat transfer medium all Follow turns of the fuel strips. 2.) The method according to claim 1, characterized in that g e k e η η zei without t. that the fuel tires on the Thin fuel plates that occupy the entire grate surface are placed on top will. T.) Method according to claims 1 and 2, characterized marked that there is a 3 to 5 cm layer of coke on the grate between the fuel strips Height is applied. 4.) Process according to claims 1 to T, characterized marked. that if air is used, it should come from below or above or in both directions is introduced into the coking room. 5.) Process according to claims 1 hie%, d a d u rc h O marked, flail in whole or in part «Ο Flue gases from the combustion of fuels other than W; irmetrager to be used. 's. f.) Process according to claims 1 to 5, characterized S marked, daft involved in the coking process ized amounts of air or Cas before their actual use to cool the Rosihelagc »directly under the grate be guided in the longitudinal direction of the grate. " BAD ORlQiNAL