An upward flow circular oil separation pretreatment device

A pretreatment device, circular technology, applied in the direction of grease/oily substance/float removal device, water/sewage treatment, water/sewage treatment equipment, etc. It can achieve the effect of small footprint, simple operation and maintenance, and low equipment operating cost.

Active Publication Date: 2017-03-15
北京翰祺环境技术股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The degreasing tank has high degreasing efficiency, but it requires pressure water intake, high operating cost, and complicated internal equipment; the structure of the advection and sloping plate grease traps is simple, but the degreasing effect is poor and the floor area is large

Method used

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  • An upward flow circular oil separation pretreatment device
  • An upward flow circular oil separation pretreatment device
  • An upward flow circular oil separation pretreatment device

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Embodiment Construction

[0028] Use of the present invention will be further described below in conjunction with accompanying drawing:

[0029] Such as figure 1 In the upward flow circular oil separation pretreatment device shown, the water inlet pipe 1 enters from the upper water distribution cylinder 2, and most of the water is evenly dispersed from the top of the diffusion cone 3 to the surroundings under the action of the water distribution cylinder 2 and the diffusion cone 3, and some The suspended solids with higher density directly fall into the conical mud hopper through the bottom of the diffusion cone 3 . The water flowing out from the top of the diffusion cone 3 passes through the water hole 5 from top to bottom, enters the water well 8, and overflows to the water outlet channel 10 through the overflow weir plate installed on the overflow water hole 9 .

[0030] The oil scraper 19 of the surface skimmer 12 is attached to the scum separating plate 22 in front of the scum hopper 13, and the ...

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Abstract

The invention discloses an upward flow circular oil separation pretreatment device which mainly comprises a water inlet and distribution system, a bottom mud scraping mechanism, a surface oil and slag scraping mechanism and a water outlet area. A water distribution barrel 2 is employed for center water inlet; a diversion cone 3 uniformly distributes water around; and floating oil and dispersion oil in water are collected by using a density difference between the oil and the water. A surface oil skimmer 12 is matched with a floating slag hopper 13, so that the concentration of the collected floating oil can reach 20%. A mud scraper 6 is arranged at the bottom to concentrate precipitated oil sludge, the concentration of the concentrated sludge can reach 80-100g / L, and sludge thickening is not required. A designed upflow rate of the oil separation pretreatment device can reach 4m / h, and the floor area is saved. The device is widely applicable to a pretreatment stage of oily sewage and can achieve oil and suspended matter effluent of less than 100mg / L synchronously.

Description

technical field [0001] The invention belongs to the field of water treatment, and is generally applicable to the pretreatment stage of oily sewage, and is used for removing slick oil and dispersed oil in water. It is especially suitable for the pretreatment of sewage with high oil content such as petroleum refining and oilfield produced water. Background technique [0002] The sewage produced by the petrochemical industry contains a large amount of oily substances. If it is not effectively removed, it will enter the subsequent secondary biochemical treatment stage. The oily substances will adhere to the surface of microorganisms, making it difficult for microorganisms to breathe and reduce the ability to degrade pollutants. Serious The ground will cause a large number of microorganisms to die, so the oily substances must be removed in the pretreatment stage. [0003] The commonly used degreasing methods for floating oil and dispersed oil include gravity degreasing method an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/40
CPCC02F1/40C02F2201/002
Inventor 王晓阳闫清云崔慧慧袁志丹杨权姚红坡曹宁
Owner 北京翰祺环境技术股份有限公司
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