Radial-flow air-flotation thickening apparatus for sludge

A thickening device and sludge thickening technology, applied in the direction of dewatering/drying/concentrating sludge treatment, can solve the problems of complex structure, small processing capacity and high cost, and achieve the effect of good concentration effect, continuous and stable operation and low cost.

Inactive Publication Date: 2014-10-01
王树岩
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, domestic sludge air flotation concentration equipment has complex structure, high cost and small processing capacity

Method used

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  • Radial-flow air-flotation thickening apparatus for sludge
  • Radial-flow air-flotation thickening apparatus for sludge
  • Radial-flow air-flotation thickening apparatus for sludge

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Embodiment Construction

[0025] In order to solve the problems of conventional sludge concentration equipment, such as small processing capacity, difficulty in applying to large-scale sludge treatment plants, complex equipment, high failure rate, and unsatisfactory concentration effect, the present invention provides a radial flow sludge air flotation concentration device , The system has the following outstanding advantages: self-flowing mud, low cost, low operating cost, good concentration effect, easy maintenance, continuous and stable operation, and non-stop maintenance. Describe in detail below by embodiment.

[0026] The radial flow sludge air flotation concentration device of the present invention consists of a contact area 1, a separation area 2, an outlet channel 3, a scum tank 4, a sludge tank 5, a dissolved air water inlet pipe 6, a water inlet pipe 7, and an outlet water collection pipe 8 , outlet pipe 9, slag discharge pipe 10, mud discharge pipe 11, mud scraper and slag scraper 12, and d...

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Abstract

The invention provides a radial-flow air-flotation thickening apparatus for sludge. The apparatus comprises a contact area 1, a separation zone 2, a water outlet channel 3, a scum tank 4, a sludge tank 5, an air-dissolved water inlet pipe 6, a sludge inlet pipe 7, an effluent collecting pipe 8, a water outlet pipe 9, a slag discharge pipe 10, a sludge discharge pipe 11, a sludge and slag scraping machine 12 and a micro-nano bubble releaser 13, wherein the bottom of the sludge and slag scraping machine 12 is equipped with a sludge scraping plate 15 which is used for scraping sludge deposited at the bottom of a pool into the sludge tank 5, a slag scraping plate 14 is installed on a water surface and used for scraping thickened sludge into the scum tank 4, the micro-nano bubble releaser 13 introduces air-dissolved water into the bottom of the contact area 1, the effluent collecting pipe 8 introduces clear water at the bottom of the separation zone into the water outlet channel 3, the contact area 1 is located at the center of the separation zone 2, the water outlet channel 3 is located at the inner side of the separation zone 2, the scum tank 4 is hung on the sidewall of the water outlet channel 3, and the sludge tank 5 is located at the bottom of the separation zone 2. The apparatus has the advantages of a simple structure, easy maintenance, low cost, an ideal sludge thickening effect and applicability to large-scale sewage treatment plants.

Description

technical field [0001] The invention relates to the technical field of sludge treatment, in particular to an air flotation concentration device. Background technique [0002] There are many ways to concentrate sludge in sewage treatment plants, such as: gravity concentration, air flotation concentration, belt concentration, centrifugal concentration, etc., among which air flotation concentration is a typical process. The method is to introduce a large number of micro-bubbles into the sludge, and the micro-bubbles adhere to the sludge flocs to form gas-bearing flocs with a density lower than that of water. Under the action of buoyancy, they float up to the water surface to complete solid-liquid separation. At present, domestic sludge air flotation concentration equipment has complex structure, high cost and small processing capacity. Contents of the invention [0003] The invention provides a radial flow sludge air flotation concentration device, which has simple structure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12
Inventor 王树岩
Owner 王树岩
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