Device, system, and method which are used for treatment of desulfurization waste water through photo-thermal reduced-pressure multiple-effect membrane distillation
A multi-effect membrane distillation, desulfurization wastewater technology, applied in multi-stage water treatment, water/sewage treatment, chemical instruments and methods, etc., can solve the problems of low construction efficiency, can not meet construction needs and other problems, achieve low operating costs, energy The effect of high utilization rate and low operating energy consumption
Active Publication Date: 2018-04-20
北京中新国能环保科技有限公司
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Problems solved by technology
[0009] The purpose of the present invention is to provide a device, system and method for treating desulfurization wastewater by photothermal decompression multi-effect membrane distillation, to solve the technical problem that the prior art cannot meet the construction requirements; and to solve the problem of low construction efficiency in the prior art
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[0046] In order to make the technical means, innovative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below.
[0047] The examples described here are specific specific implementations of the present invention, and are used to illustrate the concept of the present invention. They are all explanatory and exemplary, and should not be construed as limiting the implementation of the present invention and the scope of the present invention. In addition to the embodiments described here, those skilled in the art can also adopt other obvious technical solutions based on the claims of the application and the contents disclosed in the description, and these technical solutions include adopting any obvious changes made to the embodiments described here. Replacement and modified technical solutions.
[0048] A device for treating desulfurization wastewater by photothermal vacuum multi-effect membrane disti...
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Abstract
The invention discloses a device, a system, and a method which are used for treatment of desulfurization waste water through photo-thermal reduced-pressure multiple-effect membrane distillation. The device comprises a desulfurization waste water assembly; the desulfurization waste water assembly comprises an internal support frame, an external support frame, and a back plate successively from theinside to the outside; the internal support frame and the external support frame are rectangular; the periphery of the device is provided with U-shaped clamping grooves; the frame parts of the internal support frame and the external support frame are arranged in the U-shaped clamping grooves through clamping; a cross woven screen mesh is arranged in the internal support frame; a flat plate type porous hydrophobic membrane and a solar energy heat-collection plate are arranged on the front surface and the back surface of the internal support frame respectively; the upper frame and the lower frame of the internal support frame are provided with a desulfurization waste water outlet pipe and a desulfurization waste water inlet pipe; a support grid is arranged in the external support frame; thesurface of the back plate toward the support grid is provided with a thermal insulation layer. The device is safe and suitable to use, possesses excellent popularization and practical value, and excellent economic benefit is achieved from wide popularization and applications.
Description
technical field [0001] The invention relates to the technical field of wastewater desulfurization, in particular to a device, system and method for treating desulfurization wastewater by photothermal method decompression multi-effect membrane distillation. Background technique [0002] At present, my country's energy structure is dominated by coal. By the end of 2009, coal-fired units accounted for more than 75% of the total installed capacity. environmental pollution. [0003] The existing desulfurization process generally adopts the limestone-gypsum wet flue gas desulfurization process technology, one furnace and one tower arrangement, with or without GGH. At present, with the improvement of national emission standards, on the basis of the original one-furnace single-tower process, new processes such as single-tower double-cycle (AFT) and one furnace with two towers have emerged. [0004] Limestone-gypsum wet flue gas desulfurization process technology has played an irrep...
Claims
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IPC IPC(8): C02F1/44C02F103/18
CPCC02F1/447C02F2201/002C02F2103/18C02F2301/08C02F2301/063
Inventor 张平凡马玉强张晓慧杨超峰
Owner 北京中新国能环保科技有限公司