JP2011519987A5 - - Google Patents

Claims (14)

A spouted bed gasifier (8) with a combustor holding device (7),
At least two combustors (4, 5) are held in the combustor holding device (7), and the flange (11) fixes the combustor holding device (7) to the entrained bed gasifier (8). Through the combustor holding device (7) at the upper end surface of the spouted bed gasification furnace (8) and into the spouted bed gasification furnace, and a cooling device is held in the combustor holding Arranged in the device (7), the cooling device has at least two mutually independent cooling circuits (1, 2), and different combustors (4, 5) have at least different cooling circuits (1, 2) Partly allocated, whereby each combustor (4, 5) is surrounded by an area of the cooling device at the end on the upper end face side, at least one cooling circuit (1, 2) on the upper end face is allocated at least partially cooling purposes,
The cooling circuits (1, 2) that are independent of one another comprise cooling pipe coils, and that at least 20% of the total height of the combustor has a section (3, 6) of the cooling coils so that no cooling gaps occur. )
Below the flange (11), from top to bottom inside the combustor holding device (7),
A layer (19) consisting of a thermally insulating casting material having a fire resistance up to at least 800 ° C. with a thermal conductivity in the range of 0.02 to 0.8 W / mK;
Have a fire resistance of up to at least 800 ° C., and a loose blocking heat, bulk material space is filled between the layers of an insulating casting material (19) and the layer (18) (17) A layer consisting of
Thermal conductivity of 3~15W / mK, a thermally conductive casting material having a fire resistance of up to at least 1500 ° C., the burner is surrounded by a zone (3,6) of the cooling pipe (4, 5) a layer (18) in which the lower region is cast surrounds the combustor (4, 5);
The combustor holding device (7) comprises an outer jacket (12), which is fixed to the flange (11) and has an inner interface for the layers (17, 18, 19). Forming spouted bed gasifier (8). The layer (19) made of a thermally insulating casting material having a fire resistance of at least 800 ° C. is in the range of 1.0 to 2.0 kg / l, preferably in the range of 1.0 to 1.5 kg / l. The entrained bed gasifier (8) according to claim 1 , characterized in that it has a density of The spouted bed gasifier (8) according to claim 1 or 2 , characterized in that the layer (19) made of a thermally insulating casting material having a fire resistance of at least 800 ° C is fireproof lightweight concrete. The spouted bed according to any one of claims 1 to 3 , characterized in that the layer of bulk material (17) having a fire resistance of at least 800 ° C is a chamotte grain or another refractory brick grain. Gasification furnace (8). The spouted bed gasifier according to claim 4 , characterized in that the refractory bulk material grains (17) have a diameter in the range of 8.0 to 12.0 mm, preferably 10.0 mm in diameter. (8). The thermal conductive layer (18) has a high thermal conductivity in the range of 3-15 W / mK, preferably in the range of 5-15 W / mK, and in the range of 2.0-4.0 kg / l, preferably any range of 2.4~3.6kg / l, most preferably of the preceding claims, characterized in that a refractory concrete having a density in the range of 2.5~2.7kg / l The entrained bed gasifier (8) according to any one of the above. The combustor holding device (7) has a circular cross section, and a first combustor (4) is disposed longitudinally in the combustor holding device (7) and is provided with an inner cooling circuit (2 The entrained bed gasifier (8) according to any one of claims 1 to 6 , characterized in that it is surrounded by Claims further plurality of combustors (5), wherein are arranged at a distance from the first combustor (4), and is characterized in that assigned to at least one outer cooling circuit (1) Item 8. A spouted bed gasifier (8) according to Item 7 . The outer jacket is a rolled jacket (12), and this rolled jacket is fixed to the collar formed on the lower surface of the main flange (11), and can be removed by using a fixing device, particularly a grooved stud. 9. The entrained bed gasifier according to claim 1 , wherein the combustor holding device (7) is fixed to the flange (11). (8). The entrained bed gasifier (8) according to claim 8 or 9 , characterized in that the outer cooling system for the further combustor (5) is fixed to the outer jacket (12). A section of the cooling coil extends from the front of the spouted bed gasifier at the outer edge of the combustor holding device, along at least a portion of the sheath (12), and extends upward. The height of the cooling coil pipe corresponds to the height of the collar (14) of the cooling jacket (14 ') of the spouted bed gasifier (8) and thereby extends above the collar (14). The spouted bed according to any one of claims 1 to 10 , characterized in that an annular gap (15), in particular an annular gap (15) with a gap width of 5 to 50 mm, is provided between the cooling coil pipe and the cooling coil pipe. Gasification furnace (8). The annular gap (15) is packed with a fire-resistant flexible sealing cord (21) so as to seal the annular gap (15), and the annular gap can be scavenged with an inert gas. The entrained bed gasifier (8) according to claim 11 , characterized in that. 13. The entrained bed gasification according to claim 1 , wherein the cooling pipe coil is coated on the side facing the combustion chamber with a refractory material having a high thermal conductivity. Furnace (8). 14. The spouted bed gasifier (8) according to claim 13 , characterized in that the coating is made of a material with a high silicon carbide content and is permanently held by metal studs welded onto the pipe surface.