Oilfield wastewater filtering device

A filter device and oilfield sewage technology, which is applied in the direction of filter separation, filter circuit, gravity filter, etc., can solve the problems that the filter efficiency needs to be improved, and achieve the effect of improving the filter efficiency

Inactive Publication Date: 2015-05-20
左立强
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The patent is a fixed filter device, and the filter efficiency needs to be improved

Method used

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  • Oilfield wastewater filtering device

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Embodiment Construction

[0012] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0013] Oilfield sewage filtering device of the present invention, as figure 1 Shown, comprise shell 20, washing bucket 6, transmission shaft 24 and washing bucket cover 15, transmission shaft is connected with motor by pulley 14. The sealing gasket 17 and the sealing ring 18 are used to seal between the shell 20 and the washing tub 6 . The washing bucket is installed inside the shell through the transmission shaft 24, and the shell is provided with a water inlet 16, a water outlet 21, a backwash inlet 8, an oil discharge port 3 and a sewage discharge port 4, and the sewage discharge port is used as a flushing water outlet at the same time. Backwash pump connection. The middle part of the washing tub is provided with an upper support plate 19 and a lower support plate 22, and the upper support plate and the lower support plate are equipped with a stainless steel fil...

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Abstract

The invention relates to an oilfield wastewater filtering device which comprises a shell, a washing bucket, a transmission shaft and a washing bucket cover, wherein the transmission shaft is connected with a motor through a belt pulley; the washing bucket is installed inside the shell through the transmission shaft; an upper support plate and a lower support plate are arranged in the middle of the washing bucket; stainless steel filtering nets are installed on the upper support plate and the lower support plate; and another stainless steel filtering net is installed on the washing bucket cover. The device is also provided with a walnut shell filtering material layer and a modified fiber ball filtering material layer, wherein the walnut shell filtering material layer is positioned at the upper part of the upper support plate; and the modified fiber ball filtering material layer is positioned at the upper part of the lower support plate. The filtering device is provided with two groups of blades which are installed on the transmission shaft and are respectively positioned at the upper part of the upper support plate and the upper part of the lower support plate. The oilfield wastewater filtering device with a washing function is adopted to wash by virtue of centrifugal force generated from rotational disturbance, thereby being beneficial to condensing small-grain oil drops and micro suspended matters into large grains to be discharged out at regular time; and due to different filtering materials at the upper and lower layers of the wastewater filtering device, the two-stage filtering function of rough filtration and fine filtration is realized.

Description

technical field [0001] The invention belongs to the technical field of oily sewage treatment equipment, and relates to an oilfield sewage filtering device. Background technique [0002] Oilfield oily sewage treatment is mainly divided into two-stage treatment processes of oil removal and filtration, and the treated sewage is reinjected. There is a large amount of sewage in the combined station of the oil field, which needs to be filtered to remove oil and suspended solids in the sewage, and reinjection is carried out after reaching the sewage reinjection index. Otherwise, the oil and suspended matter in the sewage will block the underground oil-water connection channel, resulting in blockage of the oil layer channel, and the energy of the oil layer after exploitation cannot be replenished in time, which will cause a decline in the underground oil recovery rate, and make it impossible to effectively recover a large amount of oil resources remaining in the underground oil laye...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D24/28B01D24/32B01D24/46B01D36/02
Inventor 史福昌杜皎杜洪左立强程星萍田爱民鲁慧文佟凤芝孟兵川
Owner 左立强
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