Microflocculation continuous sand filter

Abstract

The invention discloses a micro-flocculation continuous sand filter. The invention mainly aims to provide a filter device which can improve the adsorption efficiency of filter sands and at the same time can realize the cyclic regeneration of the filter sands. The micro-flocculation continuous sand filter is characterized in that the micro-flocculation continuous sand filter comprises a water distribution device, a sand guiding device, a micro-flocculation generation device and a filter sand regeneration device; the filter sand regeneration device is formed by connecting a left meandering sand lifting pipe, a right meandering sand lifting pipe, a double-layer annular solid-liquid separation groove, a drive type mixing dynamic sand washing body and two detachable sieve plate cross flow scrubbing-type sand washing bodies; a water distribution pipe of the water distribution device is formed by welding a plurality of water distribution main pipes which are crossed and communicated with each other into an umbrella shape, and each water distribution main pipe is vertically provided with a plurality of water distribution sieve caps through welding; the micro-flocculation generation device consists of a jet device, a flocculation main pipe and multiple arc steel pipes communicated with one another, and each arc steel pipe is provided with holes; and the sand guiding device is a polygon cone formed by splicing multiple triangular steel plates, and the upper cone angle of the device clings to the part right below the water distribution device.

Description

technical field [0001] The invention relates to a continuous sand filter equipment with self-cleaning function. Background technique [0002] The filter device is the key equipment in the oilfield sewage treatment process, and its operation effect is directly related to the effect of oilfield water injection. With the popularization of polymer flooding and ASP flooding oil recovery technology, the water quality of oilfield sewage has changed greatly, causing a series of problems such as substandard water quality after filtration and poor regeneration effect of filter materials in the operation of conventional filtration devices, which directly affected the Normal production in the oil field. For this reason, many researchers have put forward various assumptions about the internal structure of the filter device, but the actual application effect is still not ideal, especially the water quality is not stable enough in the filter cycle, the regeneration effect of the filter ma...

AI Technical Summary

Problems solved by technology

With the popularization of polymer flooding and ASP flooding oil recovery technology, the water quality of oilfield sewage has changed greatly, causing a series of problems such as substandard water quality after filtration and poor regeneration effect of filter materials in the operation of conventional filtration devices, which directly affected the normal oil field production

For this reason, many researchers have put forward various assumptions about the internal structure of the filter device, but the actual application effect is still not ideal, especially the water quality is not stable enough in the filter cycle, the regeneration effect of the filter material is difficult to guarantee, and the filter process cannot be carried out continuously. etc. are particularly prominent

At the same time, the design of the regeneration method of the filter material in the filter device is unreasonable, so that the regeneration of the sand filter material with oily dirt on the surface is not thorough enough during backwashing, which further affects the quality of the effluent after filtration.

The more obvious problems are that the conventional filtration device has high backwash pressure, poor regeneration effect of filter material, intermittent and discontinuous filtration process, and water effluent The water quality is not up to standard and the service life of the filter material is short

The poor quality of filtered water further affects the water injection efficiency of the oil field, which in turn affects the recovery of crude oil

Images