Zero-emission recycling device for water paper or raw cement board papermaking wastewater
A zero-emission and waste water technology, which is applied in processing waste water treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve problems such as many unit facilities, many processes, and inability to reuse sediments. Achieve zero discharge of waste water, avoid pollution, and be beneficial to environmental protection
Active Publication Date: 2014-07-16
钟立福
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Problems solved by technology
The "zero discharge process of papermaking wastewater" involves the process of paper machine wastewater treatment and reuse, including the separation of concentrated white water and dilute white water. Pool filtration and radial flow sedimentation tank sedimentation processes involve many unit facilities and high manufacturing costs, and only involve paper machine wastewater treatment and reuse in papermaking wastewater, and the generated sediment sludge needs to be processed After it is made into slag cake, it can be reused, and the sediment cannot be directly used for production, and there are many processes
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[0031] See attached figure 1 , figure 2 .
[0032] A total waste water collection pool 1 and a waste water delivery component 2 are provided, and the outlet of the waste water delivery component 2 communicates with the total waste water collection pool.
[0033] A pulping waste water tank 3 is provided, and the outlet of the pulping waste water tank is communicated with the waste water conveying member 2, that is, the waste water with a higher concentration in the pulping waste water tank flows into the total waste water collecting tank 1 by the waste water conveying member 2, which is higher than the concentration in the pond. Low wastewater mixing; the bottom elevation of the pulping wastewater tank is preferably higher than the total wastewater collection tank 1, so that the wastewater and sediment in the pulping wastewater tank enter the total wastewater collection tank in an artesian state.
[0034] A screening waste water pool 4 is provided, and the outlet of the scr...
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Zero-discharge recycling device for waste paper or raw pulp board production of fireworks paper waste water. The outlet of the waste water conveying component (2) communicates with the total waste water collection pool (1); the outlet of pulping waste water pool (3), screening waste water pool (4), paper forming waste water pool (5), and pressing waste water pool (6) is connected to The waste water conveying components are connected; the water inlet of the first waste water reuse pump (7) is connected with the total waste water collection tank (1), and the water outlet is connected with the reuse water delivery pipe (7a) that provides reuse water to the pulper (8); The forming wastewater tank has a wastewater outlet that provides dilution water to the pulp dilution tank (10); the screening wastewater tank has a wastewater outlet that provides reuse water to the pulper; the water inlet of the second wastewater recycling pump (11) is connected to the press wastewater tank, The water outlet is connected to the reuse water pipe (11a) used for cleaning paper-making felts; realizing zero-discharge full reuse of waste water, and reusing the sediment and suspended matter in each waste water tank for production, which can reduce construction and operating costs.
Description
Technical field [0001] The invention involves a zero -emission reuse device involved in papermaking wastewater. It is specifically a zero -discharge device for papermaking wastewater such as firecrackers, flower guns and leadership of waste paper or slurry boards., Zero discharge of papermaking wastewater such as cowhide paper. Background technique [0002] Waste -paper paper wastewater includes slurry wastewater, pulp screening wastewater, paper machine operation wastewater, paper machine operation wastewater is also called paper machine wastewater. The paper machine wastewater includes paper pages formed wastewater, squeezing wastewater, and cleaning wastewater cleaning the blanket.At present, the devices that are treated with waste paper and wastewater. After adding the medicine, the high -efficiency shallow air floating equipment is used for treatment, or after the sedimentation of the sedimentation tank is treated, and then it is treated with the biochemical processing devic...
Claims
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IPC IPC(8): C02F9/08C02F103/28
Inventor 钟立福
Owner 钟立福