CN200981827Y - Multifunctional oil-containing sewage treatment device - Google Patents

Abstract

A multifunctional oil-contaminated sewage treatment device relates to a sewage treatment device, wherein a horizontal vessel is designed as a water communicated coarse-grain chamber, a first stage inclined plate or pipe oil removing chamber, a flocculation reaction chamber, a second stage inclined plate or pipe oil removing sedimentation chamber according to the sequence of the processing procedure; the flocculation reaction chamber consists of a tapered second stage reaction chamber and a first stage reaction chamber on the periphery of the second stage reaction chamber; a diffusing opening of the first stage reaction chamber is communicated with the second stage reaction chamber; a water outlet of the second stage reaction chamber is connected with the second stage inclined plate or pipe oil removing sedimentation chamber; a water inlet pipe of the first stage reaction chamber is internally tangent and arranged on the bottom of the taper; and the water inlet pipe is equipped with a mixing reactor. The device in the integrated structure has simple and convenient assembling, reasonable structure designing, good water-oil separating effect, long operating life and low operating cost, and especially after filtrating, the water outlet precision is high, thereby completely achieving the sewage re-injection or discharging requirement and being applicable for the produced water treatment of the oil field and the oil-contaminated sewage treatment of other industries.

Description

Multifunctional oil-contained waste water treatment device

Technical field

The utility model relates to a kind of waste disposal plant, refers in particular to a kind of multifunctional oil-contained waste water treatment device that oil-contaminated water of oil field is used of handling.

Background technology

Oil-contaminated water of oil field is that association is in oil, gas-bearing formation, it is underground to derive from deep layer, except that possessing general sewage characteristics, also has high salinity, high chlorion etc., content composition complexity, present domestic oil-containing sewage treatment technique flow process is similar, all be swash plate oily water separation, flocculation, air supporting or electric floating scrubbing, the combination of operations such as filtration, as Chinese patent 02288681.8 disclosed " oil field waste treatment unit ", the horizontal circular internal tank is divided into the swash plate treatment zone, electric floating region etc., and for example Chinese patent CN200420027997.1 discloses a kind of " improved oily(waste)water refining plant ", be set to the swash plate disengaging zone by the handling procedure order, secondary air-floatation scrubbing district, filtrating area, change the swash plate form, many alternate protruding nests of cap shape of projection are in the same way promptly arranged on the swash plate face, the protruding nest of cap shape protrudes on the side face some through holes is arranged, each spacer plate is by the alternate in the same way stacked combination of protruding nest, these two kinds of oil-contained waste water treatment devices respectively have swing, but oil slick is removed rate in the actual use, even reach the suspended substance particle diameter less than 1 micron, oil content of wastewater all haves much room for improvement less than the re-injection water requirement of 2 milligrams per liters.

Summary of the invention

The utility model is just in order to overcome above-mentioned deficiency; a kind of multifunctional oil-contained waste water treatment device is provided; it is the integrated oil-contained waste water treatment device of high precision that to realize oily water separation and solid-liquid separation simultaneously; can satisfy the oily water treatment emission standard of low permeability oil field produced water disposal re-injection requirement and other industry; the main improvement is the oxygen that do not expose to the sun; airtight operation; device is designed to the coarse chamber by the handling procedure order; first step swash plate/pipe removes the grease chamber; the flocculation reaction chamber; second stage swash plate/pipe oil removing settling pocket; the flocculation reaction chamber by the second stage reaction chamber of cone-shaped with and peripheral first step reaction chamber form; the diffusing opening of first step reaction chamber is communicated with second stage reaction chamber; tangentially place the conical lower portion place in the water inlet pipe of first step reaction chamber; the innovative point that other has is that swash plate/pipe removes employing modified hydrophilic type pvc pipe/plate in the grease chamber; the indoor modification lipophilic PVC filler that then adopts of coarse; improved oil and water separation capability effectively; specifically implement like this: multifunctional oil-contained waste water treatment device; horizontal container is designed to the coarse chamber that water is communicated with by the handling procedure order; first step swash plate/pipe removes the grease chamber; the flocculation reaction chamber; second stage swash plate/pipe oil removing settling pocket; it is characterized in that the flocculation reaction chamber by the second stage reaction chamber of cone-shaped with and peripheral first step reaction chamber form; the diffusing opening of first step reaction chamber is communicated with second stage reaction chamber; the water outlet of second stage reaction chamber connects second stage swash plate/pipe oil removing settling pocket; tangentially place the conical lower portion place in the water inlet pipe of first step reaction chamber, water inlet pipe is provided with mixing reactor.

The indoor modification lipophilic PVC many-sided ball filler that is equipped with of the utility model coarse; secondary swash plate/pipe removes and adopts modified hydrophilic type pvc pipe/plate in the grease chamber; by modification to the PVC filler; adjust the polarity gene of polymer surface; increase as carboxyl; amide group; hydroxyl; wetting ability genes such as amino; the condensation of and water molecules strong by hydrogen; make water molecules lose the ability of thermal motion; stay material surface; make its modification become hydrophilic or lipophilic; the method of modifying of PVC filler is that the PVC filler is flooded with the NaOH aqueous solution down in 80-95 ℃; washing again; dryness finalization; surface hydrophilic; lipophilic height depends primarily on concentration and the treatment time of NaOH; wherein modified hydrophilic PVC filler is to flood 0.5-1.5 hour in the NaOH of 5-10% mass concentration solution, and modification lipophilicity PVC filler is to flood 0.2-0.6 hour in the NaOH of 3-6% mass concentration solution.

In order to cushion the oily(waste)water current that evenly enter the coarse chamber; the utility model is provided with the surge chamber of water inlet pipe before the coarse chamber; oily(waste)water enters this surge chamber by suction culvert; floating to the equipment top on the oil slick in the sewage removes; current enter the coarse grain chamber from the bottom; current are by the modification lipophilic many-sided ball PVC packing layer that passes down in the coarse chamber; the little oil droplet of dispersion in the process in the water contacts with the coarse material impacts; the lipophilic many-sided ball PVC filling surface that is modified is caught gathering; when oil reservoir gathers to a certain degree; oil droplet breaks away from modification lipophilic many-sided ball surface under buoyancy and sluicing; particle diameter become big oil droplet be easy to arrive the equipment top and remove; enter secondary modified hydrophilic type swash plate/pipe oil removing with current; the removal of further floating of the oil droplet of settling pocket; so far, You removal efficient can reach about 98%.

The utility model first step swash plate/pipe removes between grease chamber and flocculation reaction chamber and is furnished with a collecting chamber, described collecting chamber is built-in with thrust-augmenting nozzle and connects the mixing reactor water inlet pipe, current by first step swash plate/pipe oil eliminator are concentrated in collecting chamber, guide by thrust-augmenting nozzle, enter mixing reactor, flocculation agent is added into the back from the mixing reactor dosing mouth and forces to mix with water, tangentially enter the conical lower portion zone of first step reaction chamber, because the ingenious design of reaction chamber, current are the eddy flow state to prolong current through line in first step reaction chamber, guarantee the reaction times, then enter second stage reaction chamber by the water inlet diffusing opening, current are laminar flow regime, being beneficial to flocs unit forms and sedimentation, in modified hydrophilic type swash plate/pipe oil removing settling pocket subsequently, little flocs unit is further removed, and the levitated object and the oil in water emulsion of removing that do not floated are caught by flocs unit in this process in the former water.

In order to improve effluent quality, reach the requirement of re-injection water, the second stage of the present utility model swash plate/pipe also is equipped with the filtration chamber after removing the grease chamber, and water outlet is expelled to re-injection, discharge point by the water outlet of container bottom after accurately filtering.The filter core that uses in the utility model filtration chamber is formed by stephanoporate framework with the filter membrane that end cap articulates, filter membrane is the filter material of the random overlapping laying of level, be preferably ultra-fine melting and blow formula modified polypropylene fiber filter material, this filter element filtering area super large, the processing flow is big, the dirt-carrying energy that superelevation is arranged filters back water outlet precision height.

The utility model equipment is a horizontal closed circular cylindrical shell; one is ellipsoidal head; be equipped with water inlet pipe and backwash water pipe on it; the other end be hydrostatic control open and close open flange soon; by motor make flange up and down lock ring draw in or open the realization fast opening and closing; anticorrosion in filter core in the conveniently replaced filtration chamber and the equipment, avoid preventing that from the enter unsafe factor of renew cartridge etc. of manhole oil-containing water from producing the injury of toxic gas to human body.

The utility model is provided with the automatic oil draining device in addition, and the oil bag of described automatic oil draining device and cylindrical shell top joins, and by a continuous online control process, makes water-oil interface maintain setting height, realizes automated operation.

Being integral of the utility model equipment structure, install simple and conveniently, structure is laid rationally, improves the water flow mode of flocculation reaction, adopt lipophilic many-sided ball and hydrophilic swash plate/tube packing, oil-water separation is good, long service life, and running cost is low, particularly after filtering, water outlet precision height has reached the requirement of produced-water reinjection or discharging fully, is applicable to the processing of oil field produced water treatment and other industry oily(waste)water.

Description of drawings

Accompanying drawing is a structural representation of the present utility model.

Embodiment

Multifunctional oil-contained waste water treatment device, one of horizontal closed circular cylindrical shell is an ellipsoidal head, is equipped with water inlet pipe 1 and backwash water pipe 15 on it, the other end be hydrostatic control open and close open flange 19 soon, the cylindrical shell top is equipped with oil bag 17, and this oil bag 17 is by 16 controls of automatic oil draining device.

Be designed to the surge chamber 2 that water inlet pipe 1 inserts by the handling procedure order in the cylinder; coarse chamber 3; first step swash plate/pipe removes grease chamber 4; collecting chamber 5; first step flocculation reaction chamber 6; flocculation reaction chamber, the second stage 7; second stage swash plate/pipe oil removing settling pocket 8; filtration chamber 9; each chamber water successively is communicated with; second stage reaction chamber 7 is tapered; its periphery is a first step reaction chamber 6; the diffusing opening 13 of first step reaction chamber 6 is communicated with second stage reaction chamber 7; the water outlet of second stage reaction chamber 7 connects second stage swash plate/pipe oil removing settling pocket 8; tangentially place the conical lower portion place in the water inlet pipe of first step reaction chamber 6; water inlet pipe is provided with mixing reactor 12; be equipped with dosing mouth 11 on the mixing reactor, mixing reactor 12 the other ends connect the thrust-augmenting nozzle 10 that collecting chamber 5 is drawn.

Filter core 14 in this device filtration chamber 9 is formed by stephanoporate framework with the filter membrane that end cap articulates, and filter membrane is that ultra-fine the melting of the random overlapping laying of level blown formula polypropylene fibre filter material, and device water outlet 18 is arranged on the cylindrical shell bottom of filtration chamber.

The indoor modification lipophilic PVC many-sided ball filler that is equipped with of this device coarse; secondary swash plate/pipe removes and adopts modified hydrophilic type pvc pipe/plate in the grease chamber; they all are down with NaOH aqueous solution dipping in 80-95 ℃; again the washing, dryness finalization modification gained; wherein modification lipophilic PVC many-sided ball filler is to flood modification in 0.2-0.6 hour in the NaOH of 3-6% mass concentration solution, and modified hydrophilic type PVC filler is to flood modification in 0.5-1.5 hour in the NaOH of 5-10% mass concentration solution.

Claims (8)

1. multifunctional oil-contained waste water treatment device; horizontal container is designed to the coarse chamber that water is communicated with by the handling procedure order; first step swash plate/pipe removes the grease chamber; the flocculation reaction chamber; second stage swash plate/pipe oil removing settling pocket; it is characterized in that the flocculation reaction chamber by the second stage reaction chamber of cone-shaped with and peripheral first step reaction chamber form; the diffusing opening of first step reaction chamber is communicated with second stage reaction chamber; the water outlet of second stage reaction chamber connects second stage swash plate/pipe oil removing settling pocket; tangentially place the conical lower portion place in the water inlet pipe of first step reaction chamber, water inlet pipe is provided with mixing reactor.

2. multifunctional oil-contained waste water treatment device according to claim 1 is characterized in that the indoor modification lipophilic PVC many-sided ball filler that is equipped with of coarse.

3. multifunctional oil-contained waste water treatment device according to claim 1 is characterized in that secondary swash plate/pipe removes employing modified hydrophilic type pvc pipe/plate in the grease chamber.

4. according to claim 1,2, one of 3 described multifunctional oil-contained waste water treatment devices, it is characterized in that first step swash plate/pipe removes between grease chamber and flocculation reaction chamber to be furnished with a collecting chamber that described collecting chamber is built-in with thrust-augmenting nozzle connection mixing reactor water inlet pipe.

5. multifunctional oil-contained waste water treatment device according to claim 4 is characterized in that also being equipped with the filtration chamber after second stage swash plate/pipe removes the grease chamber.

6. multifunctional oil-contained waste water treatment device according to claim 5 is characterized in that the filter core in the filtration chamber is formed by stephanoporate framework with the filter membrane that end cap articulates, and filter membrane is that ultra-fine the melting of the random overlapping laying of level blown formula modified polypropylene fiber filter material.

7. according to claim 5 or 6 described multifunctional oil-contained waste water treatment devices, it is characterized in that horizontal container is a horizontal closed circular cylindrical shell, one is ellipsoidal head, is equipped with water inlet pipe and backwash water pipe on it, the other end be hydrostatic control open and close open flange soon.

8. multifunctional oil-contained waste water treatment device according to claim 1 is characterized in that the cylindrical shell top is equipped with the oil bag, and described oil bag connects an automatic oil draining device.