A method and device for thickening and separating coal-containing sludge
A sludge concentration and separation device technology, applied in chemical instruments and methods, water/sludge/sewage treatment, water/sewage treatment, etc. Low cost, easy maintenance, simple equipment effect
Active Publication Date: 2019-05-14
CHINA COAL TECH & ENG GRP HANGZHOU ENVIRONMENTAL PROTECTION INST
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Problems solved by technology
Because the physical properties of pulverized coal and cinder are very different from those of domestic sludge, the sedimentation speed is fast, the fluidity is poor, and it is easy to harden, resulting in poor effect of most sludge thickening tanks, sludge hardening, and blockage of conveying pipelines, etc., reducing sewage. Processing effect of the processing system
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[0025] Such as figure 2 and image 3 Shown is a coal-containing sludge concentration and separation device, which includes a casing 1, a separator 2, a vortex-concave air-dissolving device 3, and a slag scraper 4, and the side of the casing 1 is provided with a material inlet 5 and a clear liquid outlet 6 , scum discharge port 7 and sediment discharge port 8; the separator has a conical bottom and is arranged inside the shell, the conical bottom is connected with the sediment discharge port, and the center of the separator is provided with a horn-shaped opening at both ends. Reaction diffusion cylinder 9, the vortex concave gas dissolving device is arranged in the reaction diffusion cylinder, the material inlet extends into the bottom of the reaction diffusion cylinder through the pipeline, and the reaction diffusion cylinder separates the separator into reaction diffusion section 10, settling There are three areas of clarification section 11 and sediment compression section...
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The invention relates to a sludge treatment method, in particular to a coal-containing sludge concentration and separation method and device. A coal-containing sludge concentration and separation device, the device includes a shell, a separator, a vortex-concave air-dissolving device and a slag scraper, and the side of the shell is provided with a material inlet, a clear liquid discharge port, a scum discharge port and a sediment discharge port; The separator has a conical bottom and is installed inside the shell. The conical bottom is connected to the sediment discharge outlet. A reaction diffusion cylinder with horn-shaped openings at both ends is arranged at the center of the separator. The vortex-concave gas dissolving device is provided In the reaction diffusion cylinder, the material inlet extends into the bottom of the reaction diffusion cylinder through a pipeline. The invention uses the principle of air flotation to realize the concentration of heavy sludge and light sludge and the separation of clear liquid in one step, can effectively solve the problem of concentration treatment of coal-containing sludge, and improve the treatment effect of coal mine sewage.
Description
technical field [0001] The invention relates to a sludge treatment method, in particular to a coal-containing sludge concentration and separation method and device. Background technique [0002] Coal is the main primary energy source in my country, and it will not change for a long time. As environmental protection becomes more and more stringent, the sewage and wastewater treatment of coal mining enterprises has received unprecedented attention. Especially for domestic sewage in coal mining areas, the water treatment technology itself has been relatively mature and perfect; however, the coal-containing sludge produced by water treatment has always been a difficulty in the treatment of domestic sewage in mining areas and the ultimate source of pollution. [0003] Due to the characteristics of the production organization in the mining area, a large amount of coal powder and coal slag enter the sewage sewer, settle out in the primary sedimentation tank and reaction tank of th...
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IPC IPC(8): C02F1/24
CPCC02F1/24C02F2201/002
Inventor 毛维东郭中权周如禄
Owner CHINA COAL TECH & ENG GRP HANGZHOU ENVIRONMENTAL PROTECTION INST