A method for reusing waste water produced by cement kiln ccs system
A technology for producing waste water, cement kiln, applied in the direction of settling tank, etc.
Active Publication Date: 2020-05-22
ANHUI CONCH GRP +2
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is: to provide a simple structure, which can be convenient and reliable for cement kiln flue gas CO 2 The production wastewater in the purification process is captured for collection and treatment. At the same time, the clarified liquid formed after the treatment is lifted and introduced into the water spraying part of the raw material mill for reuse, which not only solves the problem of wastewater pollution, but also realizes the reuse of wastewater. Water supply, reduce energy consumption, cost-saving cement kiln CCS system production wastewater reuse equipment
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[0020] Below with reference to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention, such as the shape, structure, mutual position and connection relationship between the various parts, the role and working principle of the various parts, etc., will be further described. Detailed instructions:
[0021] as attached figure 1 As shown, the present invention is a cement kiln CCS system production wastewater reuse equipment. The cement kiln CCS system includes a flue gas washing wastewater discharge part 1, a flue gas condensation waste water discharge part 2, and a production flushing water drainage part 3. The cement kiln The kiln CCS system production wastewater reuse equipment includes the CCS system production wastewater collection part 4, the flue gas washing wastewater discharge part 1, the flue gas condensate waste water discharge part 2, and the production flushing water drainage part 3 are respectively co...
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The invention provides a recycling method for production wastewater of a cement kiln coordinated control system (CCS) applied to the technical field of cement kiln process production. The recycling method comprises the following steps: wastewater collected by a CCS production wastewater collection component (4) is precipitated to form a clarified liquid, and when a water level of the clarified liquid is higher than a position of a high water level sensor (5), a water pump (16) of a lifting component (14) is started, and the clarified liquid is lifted and conveyed into a back-spraying component(7); and when a water level of the clarified liquid is lower than a position of a low water level sensor (6), the water pump (16) of the lifting component (14) is stopped, and the clarified liquid isno longer lifted or conveyed into the back-spraying component (7). According to the recycling method for the production wastewater of the cement kiln CCS provided by the invention, the production wastewater in the cement kiln flue gas CO2 capture and purification process can be collected and treated conveniently and reliably, at the same time, the clarified liquid formed after the treatment is introduced into a raw material mill water spraying component for reuse, so that the method solves the problem of wastewater pollution and realizes recycling of the wastewater.
Description
technical field [0001] The invention belongs to the technical field of cement kiln process production, and more specifically relates to a method for reusing wastewater produced by a cement kiln CCS system. Background technique [0002] Cement kiln flue gas CO 2 The capture and purification process is mainly divided into water washing and desulfurization section, absorption and desorption section, compression and adsorption section, rectification and finished product section, and freezing and liquefaction section. Among them, the flue gas washing wastewater is mainly generated in the water washing and desulfurization section, and the flue gas condensation wastewater is mainly generated in the absorption and desorption section. This part of wastewater and production flushing water together constitute the main source of production wastewater in the cement kiln CCS system. This part of wastewater is weakly acidic (pH value is about 4-6), and the content of suspended solids is ...
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IPC IPC(8): B01D21/02
CPCB01D21/02
Inventor 汪鹏飞陈永波谢修安李东祥张振中李永志李晓娟余生刘权松
Owner ANHUI CONCH GRP