Positive-pressure purification apparatus of high-temperature combustible gas

Abstract

The invention discloses a high-temperature positive pressure purifying device for combustible gas with dust, which adopts the technical proposal that: the high-temperature positive pressure purifying device for combustible gas with dust comprises a combustible gas generating unit in parallel connected with at least two high-temperature dust removers through gas pipelines, wherein, high-temperature resisting filter elements are arranged in the high-temperature dust removers; either a blast furnace or a gas generator is adopted as the combustible gas generating unit. Since cooling facilities are omitted, the occupied space is saved and the maintenance load is light, without worrying about the ash fouling and removing of the cooling facilities, meanwhile, the operating points for ash unloading are reduced. Without any energy consumption from cooling, the operation energy consumption of the system is reduced, the total pressure of a main air blower of the system is lowered and the motor power is reduced. The sensible heat is fully used. Since the gas temperature is kept above the dew point, the blocking of equipment caused by condensation troubles as well as corrosion from low-temperature sulfur dioxide are avoided.

Description

technical field [0001] The invention relates to a positive pressure purification device for high-temperature dust-containing combustible gas. Background technique [0002] In the prior art, the purification device for high-temperature flue gas is high-temperature combustible gas generating equipment, gravity cyclone facilities, cooling facilities, and dust collectors connected in sequence through pipelines. Since the device is equipped with cooling facilities and gravity cyclone facilities, the pipeline of the device The configuration is long, the equipment covers a large area, and the equipment investment cost is high; because the cooling facility is installed in front of the dust collector, the flue gas entering the cooling facility contains dust, causing the cooling facility to be often blocked and requires frequent maintenance; the cooling facility requires additional energy; the entire device The resistance is high, between 4500-7100Pa, the energy consumption of the mai...

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Problems solved by technology

[0002] In the prior art, the high-temperature flue gas purification device is a high-temperature combustible gas generator, a gravity cyclone facility, a cooling facility, and a dust collector connected sequentially through pipelines. Since the device is equipped with a cooling facility and a gravity cyclone facility, the pipeline of the device The configuration is long, the equipment covers a large area, and the equipment investment cost is high; because the cooling facility is installed in front of the dust collector, the flue gas entering the cooling facility contains dust, causing the cooling facility to be often blocked and requires frequent maintenance; the cooling facility requires additional energy; the entire device The resistance is high, between 4500-7100Pa, the energy consumption of the main fan is large, and the sensible heat of the combustible gas cannot be fully utilized

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