Membrane type bottom aeration device for oxidation ditch
A technology of aeration device and oxidation ditch, applied in aerobic process treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of affecting aeration effect, low service life, impurity fouling and clogging, etc. , to achieve the effect of good aeration effect and excellent application prospect
Inactive Publication Date: 2019-08-13
JIANGSU JINYU ENVIRONMENTAL ENG
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Problems solved by technology
[0004] The technical problem mainly solved by the present invention is that resistance will be generated when the air is released into air bubbles through the traditional rubber diaphragm type microporous membrane type aeration head, and impurities in the sewage are fouled and blocked, which affects the aeration effect. Cleaning and replacement year by year lead to the problem of low service life, and a membrane type bottom aeration device for oxidation ditch is provided
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[0025] A membrane-type bottom aeration device for an oxidation ditch, comprising an air intake pipe 1, an aeration chassis 2, a membrane 3, a supporting plate 4, a pressing plate 5 and an anti-fouling unit 6, characterized in that: the air intake pipe 1 and The aeration chassis 2 is connected, and the side wall of the aeration chassis 2 is connected with a supporting plate 4 and a pressing plate 5, and the diaphragm 3 is fixed on the top of the aeration chassis 2 by using the supporting plate 4 and the pressing plate 5, and a Layer anti-fouling unit 6, the anti-fouling unit 6 includes air inlet 7, lower bottom plate 8, upper cover plate 9, anti-fouling beads 10 and air outlet 11, wherein the air inlet 7 and the passage on the diaphragm 3 The holes are arranged in a staggered manner, the anti-scaling beads 10 are located in the cavity between the lower base plate 8 and the upper cover plate 9 , and the air outlet 11 is connected through the side walls of the lower base plate 8 a...
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The invention relates to a membrane type bottom aeration device for an oxidation ditch and belongs to the technical field of aeration equipment. The provided membrane type bottom aeration device for the oxidation ditch has the advantages that a membrane is not directly exposed to sewage, and thus material damage caused by direct contact between the membrane and the sewage is avoided. In addition,according to the device, a layer of anti-scaling unit is also arranged on a surface layer of the membrane, and through the arrangement of the anti-scaling unit on the layer, an air inlet can be openedduring aeration under the action of an anti-scaling bead; when aeration is stopped, the anti-scaling bead in an inner cavity of the anti-scaling unit falls on a bottom plate under the action of gravity since no gas is fed, correspondingly the air inlet is blocked, and the situation is avoided that dirt enters the device and is in contact with the membrane and thus a through hole of the membrane is blocked. In addition, the included angle between the upper end of each air outlet of the anti-scaling unit of the device and a horizontal plane is designed to be 30 degrees, and the rising angle canprevent the situation that settled impurities and dirt enter the anti-scaling unit and thus contaminate and block the membrane. The device has a wide application prospect.
Description
technical field [0001] The invention relates to a membrane type bottom aeration device for an oxidation ditch, belonging to the technical field of aeration equipment. Background technique [0002] Aeration equipment is the key equipment in the oxidation ditch process of sewage treatment plants. Aeration equipment in sewage treatment process is an important guarantee for the implementation of sewage treatment process and a key equipment for the success of sewage treatment. At present, there are various forms of aeration equipment used in my country, such as surface aeration, bottom aeration, submersible aerator, etc. Microporous membrane aeration equipment belongs to the blast aeration category. The aeration head arranged at the bottom of the pool (such as disc type, tubular rubber dispersion air distributor, corundum, ceramic air distributor, etc.) diffuses and transfers mass into the sewage. The working principle of the aeration head is the same as the shower head and showe...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C02F3/12C02F3/02
CPCC02F3/02C02F3/1257C02F2201/002Y02W10/10
Inventor 李伯平
Owner JIANGSU JINYU ENVIRONMENTAL ENG