SU86107A1 - Vertical oven gas generator - Google Patents

Description

The invention relates to an installation for the gasification of oil shale and some types of brown coal. Such an installation requires an external source of tenla and consumes for reflux purposes. along with large pieces of slate, small slate not used in the main process.

The main idea behind the proposal is. that the shale in the same kiln is subjected to partial bevelling, then to gas treatment to the producer gas and, finally, its residue is burned on the grate in a fine oil shale pattern, giving it the heat that is necessary for the processes of beveling and pyrolysis. The product of the plant is an industrial mixed gas for industrial furnaces and gas motors.

The drawing shows the scheme of the proposed vertical furnace gas generator.

Depending on the capacity of the installation, the vertical furnace consists of: s several vertical chambers /, heated from two sides by the help of heating walls 2 and from the third front side - by means of the flue space.

The piece of slate is loaded into the chamber through the hatch 17. Under the action of its own gravity, the slate is gradually lowered.

At the top of the chamber is the Shvssvanp / shale zone, where the gas forms, the gas moves in parallel with the oil shale and goes out into the window 16. The partially welded shale in the form of coke enters the gasification zone / 7, where it is gasified by the direct process by air, vapor-oxygen or vapor-oxygen. In this zone, the gas moves upwards and goes out into the same window, MTI; n the gas of the zone of the seamstress /, shifting to the latter. The mixed gas, together with vaporized products of the seamstress, moving upward, undergoes pyrolysis in the pyrolysis zone IV on the heated refractory - a draft 3.

No 861072 At the exit of the nozzle 3, the mixture of seam gas, generator gas and pyrolysis gas, having 10 И 1, and the required calorific value, enters barillet 5 through pipeline 4 and further along inclined gas pipeline 6 into scrubber dryer 7. Clean gas from scrubber is sucked in either by gas blower, if the gas goes to industrial furnaces, or directly by the engine, if the gas is used at the block station.

The required coke, under the influence of its own gravity, is lowered further downwards and enters the inclined stepped grate 5, where a small slate is thrown onto the hot coke through the combustion door.

The topochpa chamber has a reflective dome 9, usually arranged when burning low-sorbed top.shv. On the roof 9, two additional nozzles 10 were installed; 1, with the help of which, the Ayuzhet burned in the combustion chamber and that which still remains in the gas in a small amount) (e pyrolysis).

The flue gases pass through the heated up stairs, heating the chamber. Then the gases, on the downside, heat up the nozzle 3, serving for nitrolysis, and then exit into the chimney 18.

The isolated underblowing space /// under the grate 8 is divided by a partition into two parts, one of which is under the gasification zone // of the mine, and the other - but the furnace space. Both of these parts communicate with the aid of an air inlet of the tube 12 with the atmosphere. Through these pipes, equipped with appropriate registers for regulating, 1nki, air is sucked in the quantity required for gasification and afterburning of oil shale.

Shale ash is periodically removed through a special door into the ash removal trolley 19.

The entrainment from the ducts is collected in the hopper 13 and along the sleeve 14 is periodically discharged into the trolley 15.

The most important feature of the proposed scheme is its ability to regulate in the widest limits both in terms of productivity and caloric content of the gas.

In a special case, by closing the register on the pipe, supplying the air under the gasification zone, it is possible to completely stop the gasification notions, the wire in the whole chamber from top to bottom of the process of seaming and even coking the shale. This will produce a high calorific value gas in a relatively small amount: 1. Fully opening the same register, you can, on the contrary, almost stop the process of ironing, force the gasification process and get large quantities of low-calorie gas. A range of intermediate reductions is also possible.

G1 r with d m with t i 3 about the b s with n and

1. Vertical non-gasheater with a lower inclined grate, characterized with a device in its upper part of a flame-retardant nozzle for pyrolysis.

2. The form of execution of the gasifier gas generator on n. 1 is different in that the nozzle in which the pyrolysis is carried out is heated by flue gases coming from the combustion device of the same gas generator and circulating through the heating walls.

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Clean gas, furnaces - or gas

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