DE382613C - Device for smoldering, degassing and gasifying fuels in several stages by means of hot gas flows - Google Patents

Description

Device for smoldering. Degassing and gasifying of fuels in several Stages by means of hot gas flows. The invention relates to a device for Smoldering, 17nt- and gasification of brown coals and liituniin'Fisen schists, in particular of wet raw brown coals.

It is known that such bodies are gradually finite with the help of otherwise ineffective streams of hot gas in perforated degassing chambers lying one above the other to treat in such a way - «- like that, (leave the fuel at a relatively low level in one stage dried at a low temperature and in the next stage at an elevated temperature is gassed. The action of the hot gases on the coal takes place with the help of the perforated Chamber walls through which the hot gas streams can pass.

The invention relates to a device according to which the of the Hot gas dispenser, e.g. B. a gas generator or any hot gas supply, from ascending Hot gases separated according to the stages, directly into the hot gas chambers of the individual Step into the ice. that the hot gases for the drying stage through chambers pull which through the hot gas body. Originals or printing devices of the below the drying stage located in the smoldering stage.

Some embodiments of the invention are shown in the drawings, for example shown schematically.

Fig. I is a vertical section.

Fig. 2 is a horizontal section along the line A-A of Fig. I.

Fig. 3 is a horizontal section along the line B-B of Al) b. i.

Fig..I shows a modified version of the one shown in Fig. I Contraption. Ahli.3 is a horizontal section along the line C-C in Fig. 1.

Fig. G is a horizontal section along the line D-D of the Ahb. : I.

Fig.; is a vertical section through another modified one Device (smoldering furnace).

AU. Fig. 8 is a horizontal section along the line EE of Fig.; .

.Away'.). 9 shows another modified device (smoldering furnace). : 11i1. io is a horizontal section along the line h-1 # in Fig. 9.

The system according to Fig. I shows a finite gas generator debasing device. 1, is a feeder for the fresh wet raw brown coal, c are the chambers that are provided in a known manner with perforated walls, e are attached in pairs narrow chambers with closed walls that form the lower part of chambers c, f is the gas generator, ni is the hearth of the gas generator.

a are chambers. which lead from the gas generator to the hot gas spaces surrounding the upper parts of the chambers. The rooms are passed through the smoldering stage in such a way that they penetrate the hot gas bodies g, g1 and the templates z, N1. The hot gas chambers g and g1 stand with it in connection with the gas generator and can be closed by flaps k, while these flaps k on the other hand can partially close the chamber a below. ic is the discharge line for the mixture of water vapor and generator gas. 111 is a branch from this line, from which an excess of the gas can be taken. n = is a further branch of the line st, from which the lines n @. ia " and sa 'branch off. The line n3 is used to introduce a mixture of water vapors and generator gas into the lower part of the hot gas space c of the drying stage. In a similar way, the junction 11 1 serves to introduce steam and gas mixture into the lower part of the hot gas chamber h of the smoldering stage. The branch 12 -, finally, the mixture leads to the gas generator f for the purpose of forming water gas.

The operation of the device is as follows.

The coal sinks from the feeder b in the kaininern c downwards and runs through the drying stage d, in which it is supplied by the v @@ n below Hot gases, optionally with the addition of steam and Producer gas genius, from the line n? is heated to temperatures of about 150 to 300 °. The coal is dried and, when dry, sinks further down into the smoldering stage h ', h2, where they are generated by the generator gases, if necessary with the addition of the Gasdainpfgeinisches from the line w 'higher, that is to about below the beginning of the dark red heat is heated. This stage is where the actual splitting takes place of the coals with the production of a low-temperature tar. The split chimneys e at the foot of the chambers, which are only heated by flushing the generator gases, serve to degas the coal that may not yet have been completely degassed. At the same time, the narrowing of the cross section should slow down the movement the passage of the material through the chambers, because the fuel strongly decreases in space during the degassing and therefore with increasing speed would pass through the chambers.

The degassed fuel (semi-coke) reaches the gas generator f, where he is gassed. The gases rising from the gas generator partially enter the hot gas spaces g, g l, from where they pass through the perforated walls of the chambers v and the loading through into trains hl and h2 '. pull, then go through it again the chambers v and the feed through into the templates or print-out devices w, zl. At . by stroking them through, they warm the load. send and take the resulting degassing products away with it.

The other part of the producer gases pulls through the chambers a to ol: en into the hot gas space of the drying shift. «-O the gases, by charging d either inehrinalig, as indicated in the left side of Fig. i, or once, go through it as shown on the right. Remove during this pass they water the moist good and carry the water vapor with them into the j pipe n, into which they are sucked off with the help of a suction device.

In the modified version according to Fig. 4, the hot gas spaces are located g not at the; Outside of the smoldering layer, they are rather on the inside the smoldering chambers attached, and the chamber a penetrates! the hot gas trains.

In Fig. 7 a smoldering furnace is shown with low-temperature tar and low tempera. turkoks are to be obtained. Two through. broken degassing chambers c are connected to a common discharge device from which the Coke can be loaded into wagons. o is the hot gas supply pipe, which from comes from any heat source. Otherwise, this is how the smoldering furnace works the same as that of the @ device according to Fig. r.

Fig.g shows a smoldering furnace, in which the position of the hot gas spaces is similar the smoldering layer is modified according to the device according to Fig.

With some fuels, for example wood, the decomposition occurs the coal in the primary fission products a heat emission, so that the No need to add heat. In this case, simply completing the Hot gas spaces - the smoldering layer through the flaps k the supply of the let gases blocked or severely restricted. You also have it in your hand, by supplying it of the water vapor gas mixture from the line sa '' to have a cooling effect.

Claims (3)

PATETI T CLAIMS: i. Device for smoldering, degassing and gasifying of fuels in several stages by means of hot gas flows in one above the other perforated Entgasungskainmern, characterized in that the hot gas generator f draw rising hot gases for the drying stage (d) through chambers (a), which through the hot gas bodies (ä, g1), templates and take-off devices (s, z ') of the smoldering stage (v) be passed through. 2. Device according to claim i, characterized in that that the steam generator gas mixture coming from the drying stage (d) is mediated a suction device is fed to the hot gas chambers, the hot gas generator (f) and the stove. 3. Device according to claim i and 2, characterized by flaps (k ) attached to the lower end of the gas chamber (a) , which distribute the gases coming from the hot gas generator (f) to the adjacent gas chambers (a and 5, e). d. Device according to claims i to 3, characterized in that the lower end of the perforated smoldering chamber (v) is divided into channels (e) with closed walls.