CS201243B1 - Gas producer for the production of high percentage carbon oxide with solid dry rests removal - Google Patents

Description

(54) Gasifier! Generator for the production of high percentage carbon monoxide and removal of solid dry residues

BACKGROUND OF THE INVENTION The present invention relates to a generator for the production of high percent carbon monoxide by gasifying carbonaceous material. Oxygen and carbon dioxide-containing gasification grinder with solid dry residue removal and continuous removal of gasification residues. and divorce gasifier! s1 is1 in the shaft.

There is known a generator for the production of high-percentage carbon monoxide, which consists of a conical mine extending at the bottom of a closed, straight bottom, in the center of which is a nozzle for the gasifier supply. Above the shaft there is a charging device which is periodically supplied with coke batches into the space of the shaft in which the coke is subjected to a gasifier. the reaction while pouring the gasification medium. At the top! The shafts are the throat for the evacuation of the produced gas. At the bottom of the shaft there is a neck for removal! solids gasified! which is running gasified! neodváděj !. After a period of time, solid residues are accumulated in the generator in such a quantity that it is necessary to interrupt the supply of the gasifying agent, shut down the generator, open the throat and dig up the remains of the gasified material. Sheaths shafts, bottom and nozzle also! vodn! chilled! to remove excess reaction heat and to protect the construction material.

The disadvantage of said generator is that it does not require a rotatable grate, so that the remnants of gasified fuel deposited in the fixed bed! they are not running or gassed mechanically, an! and are the cause of frequent gasification interruptions! for

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201 243 to clean the shaft. Interrupting generator operation causes economic losses due to reduced gas production. Also, the temperature changes have an adverse effect on the equipment material.

Another known generator for producing high carbon monoxide consists of a cylindrical shaft (at the bottom of which a conical grate is open below and provided with a flat table on the outer periphery) above which several fixed shovels for scraping ash into the undergrowth space. Into the open space of the grate there is a tube for supplying the gasified medium _from whose outlet to the shaft allows slots in the conical surface of the grate. The grate surface is partially cooled by passing the gasification medium through the slots.

A disadvantage of said solution is the high thermal expansion caused by insufficient cooling of the grate by the gasification medium. This causes the burnt grid to be damaged and frequent replacement of parts of the expensive equipment. Also, downwardly open _T grate feed tube for zplyňovacl aédlua is unfavorable to a uniform distribution over the cross section zplyňovaelho aédla pits / zplyňovactmu medium because it allows entry into the space, not only zplyňovaelho slots of the grilles / 1 compartment but · · round table at the periphery of the grate. Also, the outlet of the gasifier containing the pail from the grate slots directed towards the shaft wall causes its damage to the formation of deposits from the gasifier residues. Liquid shovels cause uneven caking of slag and irregular coke slip in the shaft.

The drawbacks of both of these solutions make it impossible to build higher power units.

Said disadvantages are removed by the solution according to the invention / the essence of which is toa _of the zplyňovacl generator is provided in the lower part of the shaft grid mushroom formed as rotatable hollow water-cooled body by openings with at least one hollow bucket extending over aezlkruhové shaft bottom and to aszlkruhového channel under the grate foal·. The gasifier is introduced into the gasifying space through nozzles opening through the shaft wall above the grate mushroom. The inlet and outlet of cooling water to the grate mushroom is formed by a hollow drive shaft with an inserted pipe extending below the top of the grate mushroom. The wall of the shaft below the grate bolt / azo-circle bottom and the wall of the azo-circle canal are water-cooled.

The advantage of this arrangement is a good cooling of the whole grate mushroom including the shovels / adjacent wall with the non-circular bottom of the shaft and the aesl-circular channel. The pressures are provided to protect the aateral from damage from high temperatures / reduce wear and erosion caused by the hot remnants of the gasification reactions and allow for a higher mechanical load on machine parts while extending their service life.

A further advantage of this embodiment is the re-alignment of the reaction zone _from i.e., the confluence of the gasified oxygen-containing media with the gasified material / longer from the grate. This avoids damage to the grate and shovels due to high temperatures and oxygen-induced opal. Corrosion / erosion and wall burn caused by the prior art outflow from the grate towards the wall are also removed.

An example of an embodiment of a gasification generator for producing high percent carbon monoxide with solid dry residue removal according to the invention is shown schematically in the drawing representing a vertical section of the gasifier generator housing.

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A grate mushroom 2 is provided in the lower part of the gasifier generator housing 2, provided on the underside with hollow shovels 4 connected with openings 4 to the grate mushroom cavity 2. The grate mushroom 2 is rigidly connected to a rotatable hollow drive shaft 6, in which the water inlet is cooled. grate mushroom 2 and a pipe 6 for cooling water drainage is inserted. The buckets 8 move through the space above the annular bottom and in the annular channel. The shaft wall 9 beneath the grate mushroom 2, the annular bottom wall 8 and the annular channel 4 are provided with a cooling space 10. The wall 16 of the housing 6 is connected to the gasification medium nozzle 6 into the shaft space 13 above the grate mushroom 2.

A gasifier occurs in the space of the generator shaft 13! coke reaction help! The mixture of oxygen and carbon dioxide emerging from the nozzles 12. The remainder of the gasification is discharged through a cooled grate mushroom 6 to the periphery and is shoveled into shafts 8 with an outlet outside the body.

Invented Equipment! can be advantageously used in the construction of generators for the production of high-percentage carbon monoxide with the removal of solid residues with higher power units. This is achieved by reducing! construction costs, increased specific performance !, reduced! specific consumption of coke and oxygen.

Claims (3)

OBJECT OF THE INVENTION 1. Gasifier! a generator for the production of high-percentage carbon monoxide with solid dry residue removal, characterized in that it is provided with a grate mushroom 121 formed as a rotatable hollow water-cooled body connected by holes (4) to at least one hollow shovel (3) (7) shafts (13) and into the annular channel (8) under the grate bolt, and jets! / 12 / for gasifier! medium mouthed! wall (11) of the shaft (13) above the grate mushroom (2) into the gasification space. 2. Gasifier! Generator according to claim 1, characterized in that the inlet and outlet of cooling water to the grate mushroom (2) is a hollow impeller. shaft! (5) with an inserted tube (6) extending below the top of the grate mushroom (2). 3. Gasification generator according to claim 1, characterized in that the wall (9) of the shaft (13) beneath the grate mushroom (2), the annular bottom (7) and the wall of the annular channel (8) are water-cooled.