Desulfurization wastewater treatment system
A technology for desulfurization wastewater and treatment system, which is applied in gaseous effluent wastewater treatment, water/sewage treatment, neutralized water/sewage treatment, etc., and can solve the problems of high treatment cost and large floor space.
Inactive Publication Date: 2020-06-23
河北建投工程建设有限公司
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[0025] The embodiments of the present invention will be further described in detail below with reference to the drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.
[0026] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right" , "vertical", "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing this The embodiments and simplified descriptions of the invention do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting ...
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The embodiment of the invention relates to the field of desulfurization wastewater treatment, and provides a desulfurization wastewater treatment system. The desulfurization wastewater treatment system comprises a boiler, a dust remover and a desulfurization island which are connected in sequence; a spray concentration device is arranged between the dust remover and the desulfurization island in abypass manner; wherein the spray concentration device comprises a spray concentration chamber and a clarification tank; the desulfurization island is connected with the clarification tank so as to convey desulfurization wastewater to the clarification tank; wherein the dust remover is connected with the spraying concentration chamber so as to convey flue gas to the spraying concentration chamber,and the desulfurization wastewater is lifted by a pump in the spraying concentration chamber to be circularly sprayed so as to be subjected to heat exchange with the flue gas, so that the desulfurization wastewater is evaporated and concentrated. According to the embodiment of the invention, tail end tail gas waste heat exhausted by the boiler can be used as a heat source, and the wastewater is concentrated and reduced through the spraying concentration device.
Description
technical field [0001] The invention relates to the field of desulfurization wastewater treatment, in particular to a desulfurization wastewater treatment system. Background technique [0002] Desulfurization wastewater mainly refers to the discharge water from the absorption tower in the process of boiler flue gas wet desulfurization (limestone / gypsum method). The flue gas produced by the boiler enters the wet desulfurization system after being dedusted by the dust collector, and is washed and desulfurized in the absorption tower. After the mist is removed by the demister, it is discharged into the atmosphere through the chimney. In the absorption tower, as the flue gas washing continues, the effective components of the absorbent are continuously consumed, and the generated calcium sulfite is forced to oxidize to form gypsum. When the flue gas is washed in the absorption tower, the chloride in the flue gas is also washed and dissolved, and desulfurization Chloride ions are...
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Login to View More IPC IPC(8): C02F9/10C02F103/18
CPCC02F1/16C02F1/52C02F1/66C02F9/00C02F2001/007C02F2103/18
Inventor 牛豫海范汝震吕超岳强何志军郭超申子龙刘其彬马清波林德友
Owner 河北建投工程建设有限公司