JPS6375093A - Reactor for gasifying coal - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial use] The present invention relates to a reactor for the gasification of carbon-containing fuels.

[Conventional technology]

In conventional coal gasification methods, the generated gas is cleaned of dust in a hot gas cyclone connected after the reactor. As a subsequent cyclone, a device is used which is separate from the reactor and is constructed as a pressure vessel with a refractory lining, which must be designed for a specific operating point.

[The problem that the invention attempts to solve]

The problem underlying the present invention is to provide a removal device for coal gasification reactors based on a cyclone splitter that has low constructional costs, can be centered at low cost, and can be adjusted in the event of load changes. It is.

[Means for solving the problem]

In order to solve this problem, according to the present invention, a high-temperature gas cyclone for removing dust from the gas generated in the reactor is integrated in the reactor.

Since a pressure vessel is used as the coal gasification reactor, there is no need for a pressure jacket and a refractory lining for the cyclone within the reactor.

In order to be able to keep the dispensing efficiency of the cyclones approximately constant during the mouth change, the inlets of the individual cyclones can be closed off by movable plates. Operation is carried out via a 7ic pneumatically driven screw shaft from outside the reactor.

Because the separation cyclones are integrated in the coal gasification reactor, the ash and dust can be discharged with only one conveying channel device due to the Q-shaped arrangement.

〔Example〕

An example will be explained below based on a schematic diagram.

FIG. 1 shows a coal gasification reactor 1 and a hot gas cyclone 2 installed laterally and connected afterwards. The cyclone inlet is indicated at 3, the immersion tube made of heat-resistant plate at 4, the refractory lining at 5, and the pressure jacket at 6.

As the coal gasification reactor l shown in Figures 2 to 4,
For example, the Federal Republic of Germany patent article P3600432.
A reactor of the type described in No. 4 is used, but also a horizontal flow fiffl IC'1 reactor.

In FIG. 4, the reaction space 12 of the reactor I is shown on the left, and the dust removal space 14 is located on the right, separated by a weir.

In FIG. 4, only one high-temperature gas cyclone 7 is shown in the dust removal space 14, but in FIGS. 2 and 3, the dust removal space 4 has a plurality of high-temperature gas cyclones 7.

The four cyclones are the same plagiarism. Due to the positive pressure present in the reactor, the gas supply is uniform. The cyclone is made from a heat-resistant plate.

Pressure jacketing and fireproof shingles are not required.

The clean gas outlet pipe of the cyclone contains a compensation device in the pipe penetration in the reactor wall.

By means of a movable closure @10, the individual cyclone population 3 is closed off by means of a plate mounted on the screw shaft in order to keep the distribution efficiency constant during load changes. The operation is carried out from outside the reactor via the 11 motor. The rest of the plate on the cyclone inlet does not require a sealing piece since there are no significant pressure differentials. The reactor wall n passage of the closure device 10 takes place in a water-cooled packing box with an injection gas ring.

A water-cooled packet truck 8 is provided to discharge the dust separated by the hot gas cyclone 7. Heavenly space 13
The ash from the ash is likewise discharged by the water-cooled packet table 9.

By providing a hot gas cyclone in the reactor, due to the geometrical conditions, the ash and dust can be discharged with only one removal channel device 15, as shown in FIG.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of an upright coal gasification reactor equipped with a separate cyclone separator; Fig. 2 is a vertical 1a sectional view of a horizontal coal gasification reactor containing a cyclone;
FIG. 3 is a plan view of FIG. 2, and FIG. 4 is a gradual view corresponding to FIG. 2 of a coal gasification reactor with a conveying passage device. 1... Coal gasification reactor, 7... Temperature gas cyclone, 14... Debeating space. IG 1 FIG 2 FIG 3

Claims (1)

[Scope of Claims] 1. A reactor for gasifying carbon-containing fuel, characterized in that a high-temperature gas cyclone (7) for removing dust from the gas generated in the reactor (1) is integrated in the reactor. 2. Reaction according to claim 1, characterized in that the hot gas cyclone inlet (3) is closable by a movable closing device (10) that can be operated from outside the reactor (1). vessel. 3. characterized in that the separated dust evacuation device (8) and ash evacuation device (8) of the hot gas cyclone (7) are led together into a common conveying channel device (15), A reactor according to claim 1.