The gasification unit has a self-balancing liquid level function in the cooling zone.

Abstract

This invention proposes a gasification device capable of balancing the liquid level. The gasification device consists of a furnace body, a spray unit, and several groups of blowers. The spray unit and several groups of blowers are arranged sequentially in the cooling zone of the furnace body from top to bottom. The spray unit comprises interconnected horizontal and vertical spray pipe sections, with the horizontal spray pipe sections passing through the side wall of the furnace body and the openings of the vertical spray pipe sections pointing downwards. Each blower unit comprises a horizontal blower pipe section and a vertical blower pipe section connected in a series. The horizontal blower pipe sections pass through the side wall of the furnace body and the openings of the vertical blower pipe sections point upwards. The openings of the vertical blower pipe sections are positioned at the same level as the cooling liquid in the cooling zone, and the cooling liquid is in an overflow state. The vertical blower pipe sections are positioned coaxially below each vertical spray pipe section.In open-circuit gasification, by combining a spray unit and multiple scrubbing units, the requirement for self-balancing of the liquid level in the cooling zone is met by combustion overflow and dust removal by scrubbing, achieving efficient cooling and wetting of fly ash in the raw synthesis gas, while reducing the load on downstream equipment.