CN86201439U - Treating equipment for oil-containing waste water - Google Patents

Abstract

The utility model relates to a novel device which can process oily sewage and oily waste alkali and acid liquor with high concentration without the secondary pollution. The utility model is characterized in that the device is composed of a floating oil separation device, a neutralizing air injection device, a float breaking and settlement device, a contacting transition device, a suspended type sludge dewatering device, a sludge regenerating water purifier, etc. which are matched mutually. The whole device achieves the semi-automation, the sealed running, the automatic oil drainage and the slag removal of ducts by not using electric self control elements. The utility model has the advantages of convenient operation, high reliability, low cost, and miniaturization, and is especially suitable for the treatment of the sewage containing sticking oil and emulsified oil for medium and small-sized petroleum processing plants and oil stores in the cold area.

Description

Treating equipment for oil-containing waste water

The utility model belongs to oily(waste)water improvement technology.

The domestic and international at present treatment unit to oily(waste)water mostly is oil trap, flotation cell.Biochemical aeration tank, contacted filter tank, sludge dewatering equipment, the poly-oily device of coarse etc.Use that these devices are suitable for large-scale wastewater treatment plant, floor space is big, investment cost is high, can not thoroughly administer, exist for the second time and pollute oil gas and mud.Biochemical aeration process complex management is not suitable for the waste water control of middle-size and small-size refinery (particularly waste oil regeneration factory) and storage tank farm.Especially under Han Qu and batch operation condition, biochemical aerating apparatus cisco unity malfunction.It is qualified that sewage is difficult to handle.The coarse device that small sewage treatment plant adopts; all huger oil trap and breakdown of emulsion equipment must be set; the construction costs height, simultaneously the coarse device high density sewage such as oil-containing spent acid, alkali lye and sticking oil wash bucket, waste oil regeneration and chemical emulsification oily water all are difficult to administer qualified.

The objective of the invention is to solve above-mentioned various deficiency, a kind of new device for middle-size and small-size refinery (particularly waste oil regeneration factory and chemical cask washing factory) and storage tank farm sewage disposal that can both use in Han Qu, the torrid zone is provided.

The present invention is: oil slick tripping device (Fig. 1), in and gas injection device (Fig. 2), breakdown of emulsion settler (Fig. 3), contacted filter tank (Fig. 4), suspension type sludge dehydration device (Fig. 5).

Floating oil separation device (Fig. 1) is made up of housing (1), water inlet check (non-return) valve (2), honeycomb inclined-tube (3), oil catcher (4), oil removal effluent trough (5), water outlet weir plate (6), ash pit (7), outlet pipe (8), floating oil collecting container (9). During work, sewage enters ash pit (7) through water inlet check (non-return) valve (2) and changes flow direction rising, by honeycomb inclined-tube (3) dregs in the sewage is tackled in ash pit (7). The oil granule is agglomerated into bulky grain. Rise to housing (1) top, the profit layering, oil is stopped that by oil removal effluent trough (5) rising enters oil catcher (4) automatically discharge, enter collection container (9). The water of removing oil slick enters the bottom of oil removal effluent trough (5), discharges through water outlet weir plate (6), outlet pipe (8).

In and gas injection device (Fig. 2), be by water inlet isocon (11), under meter (12), (12 '), milk of lime jar (13), mixing tank (14), industrial acidity meter (15), gas injection jar (16), pore air injection pipe (17), stirring pipe (18), steam heating pipe (19), rising pipe (20), scum pipe (21) are formed.During work, the water of discharging by the oil slick separator, in entering and the water inlet isocon (11) of gas injection device, main flow directly enters mixing tank (14), and the tributary is earlier through under meter (12), the rarefied liming of milk of lime jar (13).Enter in the mixing tank (14) again and the oily(waste)water main flow, neutralization is detected by industrial acidity meter (15), and the sewage after the neutralization enters the upper strata of gas injection jar (16), after pore air injection pipe (17) gas injection oxidation, discharges from rising pipe (20).

Breakdown of emulsion sedimentation device (Fig. 3), be by horizontal tank (22), water inlet pipe (23), gas, water, oil separator (24), exhaust blocking solution valve (25), drain the oil and chew (26), water distributor (28), water distribution gather oil reservoir (27) (by woven wire, nylon filter cloth, poly-malthoid is compound forms), oil removal effluent trough (29), rising pipe (32), oil trap (31), different hole equivalent scum pipe compositions such as (30).During work, through in and gas injection after sewage a lot of bubbles and oil slick are arranged, sewage enters through the tangential direction of water inlet pipe (23) along gas, water, oil separator (24), oil, gas rise, and gas is discharged automatically through exhaust blocking solution valve (25), and oil is chewed (26) through draining the oil and reclaimed, sewage and floss enter water distributor (28) to the settling region water distribution, sewage changes to flow to and rises, and gathers the oil that oil reservoir (27) filtered and quickened coalescent breakdown of emulsion through water distribution, and elaioleucite enters oil trap (31) and reclaims.Remove the water of oil in water emulsion, enter oil removal effluent trough (29) and rising pipe (32) and discharge.Floss after the settling region concentrates is discharged through different hole equivalent scum pipe (30) in mud.

Contacted filter tank (Fig. 4), be by vertical tank (33), water inlet sieve (34), anthracite coal measure (35), quartz sand layer (36), bed course (37) (woven wire, nylon wire, rubble is formed), back up pad (38), water subfill water level pipe (39), water inlet pipe (40), under meter (41), back flushing water inlet pipe (42), back flushing rising pipe (43), rising pipe (44), tensimeter compositions such as (45), during work, by the effusive water of breakdown of emulsion sedimentation device through water inlet pipe (40), under meter (41) water inlet sieve (34), anthracite coal measure (35), quartz sand layer (36), bed course (37), back up pad (38) carries out being discharged by water level pipe (39) rising pipe (44) after the contact percolation.Because water level pipe (39) is communicated with vertical tank (33), make jar interior water level remain on the intersection of anthracite coal measure (35) and quartz sand layer (36).Form the water subfill of interception oil and floss.The interstitial surface area of anthracite coal measure (35) is big, organism and floss is adsorbed on its surface.Be easy to desorption during recoil again, this contacted filter tank cycle of operation is long.Energy deep purifying oily(waste)water, stable effluent quality is in acceptability limit.The transparent no suspended substance of clean appearance.

Suspension type sludge dehydration device (Fig. 5) by suspension bracket (46), suspension ring (47), nylon cloth diafiltration bag (48), dewatered sludge vent pipe (49), water from diffusion water leg (50), moves or fixedly advances mud pipe (51) and form.During work,, inject nylon cloth diafiltration bag (48) through advancing mud pipe (51) from the effusive rare mud of breakdown of emulsion sedimentation device.Moisture content in the mud exosmoses through nylon cloth diafiltration bag (48), splashes into water from diffusion water leg (50) and returns Sewage treatment systems.Mud after the dehydration is discharged through vent pipe (49).

The whole set miniaturization, floor space is little, and cost is low; Without electrical element, realized semi-automation; Airtight operation, automatic oil draining, the pipeline deslagging, easy and simple to handle, stable and reliable for performance; Mud is regenerated as water purification agent recycles, do not pollute for the second time, working cost is low, has remarkable economical and environmental benefit.

Claims (6)

1, a kind of adopt oil slick separate, in close the new device that flocculation, sedimentation gather wet goods technical finesse high density oily(waste)water, oil-containing acid-base waste fluid, it is characterized in that described device is the oil slick tripping device, in and gas injection device, breakdown of emulsion sedimentation device, contact percolation device, suspension type sludge dehydration device.They are connected to form oil and water treatment equipment successively.

2, according to claim 1 described oil and water treatment equipment.Honeycomb section pipe (3) and oil trap (4), oil removal effluent trough (5), water outlet weir plate (6) are equipped with in housing (1) lining that it is characterized in that the oil slick tripping device.

3, according to claim 1 described oil and water treatment equipment.Form by water inlet isocon (11), under meter (12), milk of lime jar (13), mixing tank (14) industrial acidity meter (15), gas injection jar (16), pore air injection pipe (17), steam heating pipe (19) with gas injection device in it is characterized in that.

4, according to claim 1 described oil and water treatment equipment.It is characterized in that the breakdown of emulsion sedimentation device by horizontal tank (22), gas, water, oil separator (24), exhaust blocking solution valve (25), the poly-oil reservoir (27) of water distribution, different hole equivalent scum pipe (30) are formed.

5, according to claim 1 described oil and water treatment equipment.It is characterized in that the contact percolation device is provided with water subfill liquid level tube (39), form the water subfill of interception oil and floss.

6, according to claim 1 described oil and water treatment equipment.It is characterized in that the suspension type sludge dehydration device is hung with the nylon cloth bag of acid and alkali-resistance.

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