CN203568959U - Oily sludge dewatering treatment equipment - Google Patents
Oily sludge dewatering treatment equipment Download PDFInfo
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- CN203568959U CN203568959U CN201320647648.9U CN201320647648U CN203568959U CN 203568959 U CN203568959 U CN 203568959U CN 201320647648 U CN201320647648 U CN 201320647648U CN 203568959 U CN203568959 U CN 203568959U
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Abstract
The utility model discloses oily sludge dewatering treatment equipment, relating to the oily sludge treatment technology. The equipment comprises a skidding base, a delivery pump, a Venturi device, a spiral feeder, a first hardening and tempering reaction tank, circulating pumps, an ozone jet device, a static mixer, an ozone strength control tank, a second hardening and tempering reaction tank, a blower, a screw pump, a screw extrusion dewaterer, an ozone device, a second flocculant regulating tank and a NaOH regulating tank. The equipment has the advantages and positive effects that the equipment has a simple process and can better solve the problem of dewatering of oilfield oily sludge; the equipment innovatively adopts ozone destabilization, does not use medicaments and is free from secondary pollution; the adopted device is an integrated full-automatic skid-mounted device, has a small occupied area and a high degree of automation, and has lower investment and operating costs than traditional treatment devices.
Description
Technical field
The utility model relates to contained Mud Treatment Technology, relates in particular to a kind of oily sludge dewatering processing device.
Background technology
The a large amount of oily sludge of association in disposing polluted water in oil process, is the sticky pulpous state of black.Take air storage or hole to bury, not only contaminated soil, air and underground water source, harm environment and residents ' health, and there is the potential safety hazards such as inducing combustion and blast.Oily sludge nuisanceless disposal has become the emphasis of Recent study, can produce serious problem of environmental pollution, and organic pollutant has very high toxic action to human body and environment, and cause gradually showing great attention to of people if deal with improperly.Oily sludge has been put into the mineral waste oils in the Hazardous wastes catalogue > > of < < country, must carry out harmless treatment to oily sludge.
1, modifier treatment
Black thickness oily sludge concentrated solution after gravity settling dehydration, generally consists of jointly oil-in-water (O/W), water-in-oil (W/O) and suspended solids, belongs to heterogeneous colloidal dispersion, and composition is comparatively complicated.Due to oily sludge particle surface absorption like charges, repel each other, in addition fully emulsified, extremely difficult de-steady, make oil, water, body refuse separate more difficult, need to carry out modifier treatment, the separation completely that make that crude oil is separation with solid particulate, oil droplet polymerization and the former chemical agent adding is realized oil, water, slag three-phase with solid impurity sedimentation.
2, modified-mechanical separation processing
This technology is quite ripe abroad, and aspect mud chemical conditioning, has developed the efficient polymeric flocculant of series of new.Select flocculation agent to process oily sludge, can change the structure of oily sludge particle, destroy the stability of colloid, improve the dewatering of mud, then carry out mechanical dehydration; Mechanical dewatering equipment mainly contains spiral shell pressing dehydrator, folded spiral shell water extracter, vacuum filtering and dewatering machine, plate and frame filter pressing dehydrator, band press filter dewatering machine and Horizontal spiral discharging centrifuge.The traditional technology of deoiling of sludge method is to add emulsion splitter to carry out stirring reaction, then enter three-phase centrifuge and separate fuel-displaced, water, mud three-phase, the wherein selection of emulsion splitter, muddy water ratio, stirring intensity, temperature of reaction and time are the important factors that affects oil removal rate.
Research is found, the oily sludge that digestion time is grown, as: the oily sludge at long celebrating oil field gas production two stations, factory Mizhi adopts above-mentioned way to add adjusting material, adds emulsion splitter, selects flocculation agent to produce little effect.
Because oily sludge composition and materialization property are subject to sewage quality, treatment process, add the many factors such as medicament, otherness is larger, and intractability is large.
Utilizing this strong oxidizer of ozone oily sludge to be carried out to the method processing of advanced oxidation, is exactly in fact by utilizing abundant mixing, the stirring of ozone and oily sludge, and the organic substance in mud is dissolved in solution completely.The main effect of ozone oxidation does not lie in and reduces total amount of organic in water, but changes organic character and structure.By ozone Oxidation Treatment, in water, larger molecular organics decomposes the organic components that is oxidized to small organic molecule and has a saturated structure obviously increases.The oxidation characteristic of ozone has determined that single ozonation technology has the oxidizing reaction of ozone in the aqueous solution.Because ozone is a kind of unsettled strong oxidizer, O
3and the intermediate product radical decomposing in water has very strong oxidizing property.Therefore, it is some element and organic compound in aqueous oxidizing rapidly and widely, even under lower concentration, also can complete moment.The oxygenizement of ozone in the aqueous solution depends on its decomposition condition and mechanism.Ozone can form the Hydroxyl radical HO with strong oxidation in water
-, not only can disinfection, can also oxygenolysis water pollutant, in the processing of waste water machine mud, use increasingly extensive.
Its major function is as follows: 1. process oil-containing and contain organic wastewater; 2. removal of ammonia and nitrogen; 3. decolouring; 4. Treatment of Cyanide-containing Wastewater; 5. Phenol-Containing Wastewater Treatment; 6. remove heavy metal.
This method is expected to be developed to the treatment process of efficient oily sludge processed and drilling fluid mud.
Utility model content
The purpose of this utility model is just to overcome the shortcoming and defect that prior art exists, and a kind of oily sludge dewatering processing device is provided.
The purpose of this utility model is achieved in that
By oily sludge modified-mechanical dehydration technique realizes oil, water, slag three phase separation.
The utility model has carried out brief analysis to the main methods of oily sludge.Take the dehydration of oily sludge as research emphasis, the feature high according to mud stability, has proposed employing ozone strong oxidizing method and has removed greasy filth stability, and then carried out the technological line of flocculation dewatering.Experimental result shows, by ozone strong oxidizing (deflocculated)-flocculation (solid-liquid separation)-condensing (secondary flocculation)-spiral shell press-dehydrating technique carries out processed to oily sludge again, the water ratio of oily sludge has declined 17-24%, volume decrement is obvious, and this is an innovation.
In experimentation, adopted ozone-diatomite efficient flocculant combination coupling, oily sludge has been had to preferably de-steady effect.Consumption to ozone and diatomite efficient flocculant dosage,, de-oiling influential effect de-surely to greasy filth carried out high spot review, found that, ozone is respectively 2.0%～3.0% at the dosage of 20mg/L and diatomite efficient flocculant, to the de-steady and dehydrating effect the best of greasy filth, 1/3rd left and right have fallen in volume; Water ratio is less than 80%, and the greasy filth after de-steady dehydration is inviscid.This pretreated oily sludge (the inviscid mud of greasy filth), then through high effective coagulant flocculation, just can enter spiral shell and press (folding spiral shell) water extracter to carry out accessible dehydration.
Specifically, the structure of this equipment is:
The entrance end of transferpump connects oily sludge, the exit end of transferpump is connected with the entrance end of Venturi, the upper end of Venturi is connected with the discharge end of feed screw, and the exit end of Venturi is connected with the mud imported valve of the 1st modified retort and the 2nd modified retort respectively;
The entrance end of recycle pump is connected with the circulating water outlet of the 1st modified retort and the 2nd modified retort respectively, and the exit end of recycle pump is connected with the import of ozone ejector;
The outlet of ozone ejector is connected with the import of static mixer, and the outlet of static mixer is connected with the import of ozone intensity control tank;
The exit end of ozone intensity control tank is connected with the circulating water intake valve of the 1st modified retort and the 2nd modified retort respectively;
In addition, the entrance end of recycle pump is also connected with the feed opening of NaOH regulating tank, and the exit end of recycle pump is also connected with the NaOH imported valve of the 1st modified retort and the 2nd modified retort respectively;
1# flocculation agent is directly entered by the 1# flocculation agent imported valve of the 1st modified retort and the 2nd modified retort;
Fresh air is directly entered by the fresh air inlet valve of the 1st modified retort and the 2nd modified retort;
Gas blower is connected with the waste gas outlet valve of the 1st modified retort and the 2nd modified retort respectively;
The entrance end of spiral pump is connected with the sludge outlet valve of the 1st modified retort and the 2nd modified retort respectively, and the entrance end of spiral pump is also connected with the discharge port of 2# flocculation agent regulating tank, and screw rod pump outlet is directly connected with the import of spiral shell pressing dehydrator.
Oily sludge dehydration treatment method
1. adopt sludge pump that oily sludge (pulpous state) is squeezed into modified retort by certain solid content, mud regulates pH value by CaO(entering the in service of tank body) enter in proportion tank body simultaneously;
2. when mud is filled after modified retort, recycle pump starts operation, at the O in service of this circulation
3by static mixer and mud, fully mix and reach the carbonic acid gas that abundant oxidation produces afterwards and discharge from tank body top;
3. pass through O
3mud after modified destablizing carries out flocculation treatment, after 1# flocculation agent-modification infusorial earth flocculation agent (seeing the utility model people's patent of invention: ZL120071016899.4, ZL201010028954.5) is fully uniformly mixed with mud in proportion, carries out sedimentation processing;
4. pass through O
3the mud that carries out again flocculating settling processing after modified destablizing now starts to separate, and tank body top is O
3air supporting oil slick out, bottom is the mud of flocculation postprecipitation, now needs to carry out oil extraction processing, and oil slick is entered in the groove of cofferdam, top and enters water-and-oil separator;
5. after oil extraction, start whipping device, NaOH is squeezed into tank body and adjust pH value;
6. after above-mentioned steps completes, mud after modified getting well enters spiral shell and presses (folded spiral shell) water extracter, enter spiral shell simultaneously and press the 2# flocculation agent in addition of (folded spiral shell) water extracter (flocculation for the second time), mud after 2# flocculation agent and modified getting well after fully mixed, will produce larger flco and have larger bonding strength, so just can dewater smoothly.
The utlity model has following advantages and positively effect:
1. technique is simple, can solve preferably a dehydration difficult problem for Sludge in Oilfields;
2. adopting ozone de-is surely an innovation, not with medicament and non-secondary pollution;
3. the integrated full-automatic skid-mounted device of device that adopted, bores that ground area is little, level of automation is high, investment and running cost is all lower than conventional process device.
Accompanying drawing explanation
Fig. 1 is the structural representation (main looking) of this device;
Fig. 2 .1 is the structural representation (overlooking) of this device,
Fig. 2 .2 be the A of Fig. 2 .1 to view,
Fig. 2 .3 is that the B of Fig. 2 .1 is to view;
Fig. 3 is the structural representation of the 1st modified retort;
Fig. 4 is the structural representation of waste liquid of drilling sludge sump;
Fig. 5 is the process schematic representation of waste liquid of drilling and sludge treatment.
In figure:
00-skid;
1-transferpump; 2-Venturi; 3-feed screw;
The 4-the 1 modified retort,
401-whipping appts, 402-cylindrical shell, 403-waste gas outlet valve,
404-upper cover, 405-fresh air inlet valve, 406-stirring tightness system,
407-blade, 408-lower manhole, 409-visor,
410-liquidometer, 411-running water inlet valve, 412-circulating water outlet,
413-lower cover, 414-oil slick relief outlet,
415-upper cofferdam groove, 416-tank body feet, 417-circulating water intake valve,
418-sludge outlet valve, 419-mud imported valve,
420-NaOH imported valve, 421-1# flocculation agent imported valve;
5-recycle pump; 6-ozone ejector; 7-static mixer;
8-ozone intensity control tank; The modified retort of 9-2#; 10-gas blower;
11-spiral pump; 12-spiral shell is pressed (folded spiral shell) water extracter; 13-ozone equipment;
14-2# flocculation agent regulating tank; 15-NaOH regulating tank.
Embodiment
Below in conjunction with drawings and Examples, describe in detail:
One, equipment
1, overall
.1, Fig. 2 .2, Fig. 2 .3, Fig. 6 as shown in Figure 1, Figure 2, this equipment comprises that skid 00(rectangle square represents), transferpump 1, Venturi 2, feed screw 3, the 1st modified retort 4, recycle pump 5, ozone ejector 6, static mixer 7, ozone intensity control tank the 8, the 2nd modified retort 9, gas blower 10, spiral pump 11, spiral shell press (folded spiral shell) water extracter 12, ozone equipment 13,2# flocculation agent regulating tank 14 and NaOH regulating tank 15;
This equipment is provided with 15 kinds of functional components altogether, presses (folded spiral shell) water extracter 12 be arranged on another platform except spiral pump 11 and spiral shell, and wherein 13 kinds of equipment are all arranged on above skid 00;
Its annexation is:
The entrance end of transferpump 1 connects oily sludge, the exit end of transferpump 1 is connected with the entrance end of Venturi 2, the upper end of Venturi 2 is connected with the discharge end of feed screw 3, and the exit end of Venturi 2 is connected with the mud imported valve 419 of the 1st modified retort 4 and the 2nd modified retort 9 respectively;
Recycle pump 5(is shown in Fig. 1,6 middle lower portion) entrance end be also connected with the circulating water outlet 412 of the 1st modified retort 4 and the 2nd modified retort 9 respectively, the exit end of recycle pump 5 is also connected with the import of ozone ejector 6;
The outlet of ozone ejector 6 is connected with the import of static mixer 7, and the outlet of static mixer 7 is connected with the import of ozone intensity control tank 8;
The exit end of ozone intensity control tank 8 is connected with the circulating water intake valve 417 of the 1st modified retort 4 and the 2nd modified retort 9 respectively;
In addition, recycle pump 5(is shown in Fig. 1,6 the left side) entrance end be connected with the feed opening of NaOH regulating tank 15, the exit end of recycle pump 5 is connected with the NaOH imported valve 420 of the 1st modified retort 4 and the 2nd modified retort 9 respectively;
1# flocculation agent is directly entered by the 1# flocculation agent imported valve 421 of the 1st modified retort 4 and the 2nd modified retort 9;
Fresh air is directly entered by the fresh air inlet valve 405 of the 1st modified retort 4 and the 2nd modified retort 9;
The entrance end of spiral pump 11 is connected with the sludge outlet valve 418 of the 1st modified retort 4 and the 2nd modified retort 9 respectively, the entrance end of spiral pump 11 is also connected with the discharge port of 2# flocculation agent regulating tank 14, and the outlet of spiral pump 11 directly presses the import of (folded spiral shell) water extracter 12 to be connected with spiral shell.
2, functional component
1) skid 00
2) transferpump 1
Transferpump 1 is the power-equipment of oily sludge and CaO being inputted to modified retort.
3) Venturi 2
4) feed screw 3
Feed screw 3 is that solid matter CaO is measured to the feed mechanism in input Venturi 2 on demand, and CaO can regulate pH value in modified retort, and ozone reacts completely under alkaline condition.
5) the 1st modified retort 4 and the 2nd modified retort 9
The 1st modified retort 4 is identical with the 2nd modified retort 9 structures, is the container of dress oily sludge, is provided with discharge equipment in tank body, is the de-steady visual plant of oily sludge, and it is shaped as round can or square chest.
As Fig. 3, this modified retort 4 comprises lower whipping appts 401, cylindrical shell 402, waste gas outlet valve 403, upper cover 404, fresh air inlet valve 405, stirs tightness system 406, blade 407, lower manhole 408, visor 409, liquidometer 410, running water inlet valve 411, circulating water outlet 412, lower cover 413, oil slick relief outlet 414, upper cofferdam groove 415, tank body feet 416, circulating water intake valve 417, sludge outlet valve 418, mud imported valve 419, NaOH imported valve 420,1# flocculation agent imported valve 421;
Its position and annexation are:
From top to bottom, upper cover 404, cylindrical shell 402, lower cover 413 and feet 416 are connected successively (welding) and form a whole;
At left side, right side and the top of upper cover 404, be respectively arranged with fresh air inlet valve 405, waste gas outlet valve 403 and flocculation agent imported valve 421;
Lower end, left side at upper cover 404 is provided with running water inlet valve 411;
Lower end, right side at upper cover 404 is provided with circulating water outlet 412;
In the upper end of cylindrical shell 402, be provided with oil slick relief outlet 414 and upper cofferdam groove 415;
At cylindrical shell 402 middle parts, lower-left end and bottom righthand side, be respectively arranged with manhole 408, liquidometer 410 and visor 409;
In the middle of the bottom of lower cover 413, be provided with whipping appts 401, whipping appts 401 stir shaft on it is through tightness system 406, then connects the blade 407 that is positioned at lower cover 413;
On lower cover 413 left sides, right side, be respectively arranged with mud imported valve 419, circulating water intake valve 417 and sludge outlet valve 418.
The 1st modified retort 4 and the 2nd modified retort 9 alternate run in parallel, be the pretreatment reaction equipment of oily sludge dehydration, Main Function is the structure that changes oily sludge particle, destroys the stability of colloid, the dewatering that improves mud, then carries out mechanical dehydration; This tank can be deviate from the water surface by the crude oil in mud in the process of reaction from mud, then, crude oil is arranged from tank to oil-feed water separator, and crude oil is collected.
6) recycle pump 5
Recycle pump 5 is to utilize the circulation of water that ozone is squeezed into the power-equipment in modified retort.
7) ozone ejector 6
Ozone ejector 6 is mounted in the Venturi on circulating pump pipeline, and this device can will mix with oily sludge in ozone upstream line.
8) static mixer 7
Static mixer 7 is a kind ofly can make oily sludge fully mix with ozone and not need the static device of power.
9) ozone intensity control tank 8
Ozone intensity control tank 8 is that a kind of ozone that makes mixes the rear fully tank body of oxidation that guarantees with mud.
10) gas blower 10
11) spiral pump 11
12) spiral shell is pressed (folded spiral shell) water extracter 12
It is major equipments of a kind of sludge dewatering that spiral shell is pressed (folded spiral shell) water extracter 12.
13) ozone equipment 13
14) 2# flocculation agent regulating tank 14
2# flocculation agent regulating tank 14 is the tank bodies that regulate flocculation agent; 2# flocculation agent is liquid substance, need to add water and regulate, and this tank enters spiral shell and presses (folded spiral shell) water extracter 12 to carry out processed after 2# flocculation agent is regulated in 1:400 ratio.
15) NaOH regulating tank 15
NaOH regulating tank 15 is the tank bodies that regulate NaOH; NaOH is chip solid material, need to add water and regulate, and this tank enters modified retort after NaOH is regulated in 1:10 ratio, and now, the pH value of retort is in 13 left and right, and this is the reaction conditions of 2# flocculation agent.
3, the working mechanism of this equipment
Highly aqueous mud shows certain colloid feature and milk sap feature, has good stability.Solid matter is wherein combined with former wet goods organism by surface modification effects such as () aquation, ionization, produces certain absorption and repulsive interaction, fully spreads, thereby make system be steady state in water; Adopt conventional centrifugation and cyclonic separation substantially can not realize solid-liquid separation; The key of processing is to destroy the stability of greasy filth, realizes solid-liquid separation.
Adopt ozone-flocculation agent combination coupling shakedown greasy filth stability, its Main Function mechanism has three aspects:
The one, under the effect of the strong oxidation of ozone, make the H discharging in water
+oH in the hydration layer of silt particle particle surface in energy and in greasy filth
-, reduce the ability that it is combined with water;
The 2nd, diatomite efficient flocculant has neutralizing effect to the negative charge on particulate matter surface in greasy filth, can reduce its surperficial negative charge, reduces Zeta potential, reduces intergranular repulsion, and its stability is weakened or loss of stability;
The 3rd, the strong polarity ion that ozone produces in water, can compress and destroy colloidal particle interfacial electric double layer, making colloid loss of stability, showing as the solid phase (mixture of viscous crude and silt particle in greasy filth, slightly heavy compared with water) and water initial gross separation, water has become free state.This is similar to the mechanism of colloidal coagulation.
Through ozone-diatomite efficient flocculant greasy filth after treatment, effectively carry out solid-liquid separation, isolated solid phase is the mixture of viscous crude and silt particle.Viscous crude float over water above, silt lodging is below water, viscous crude can the upper cofferdam in retort be discharged from and enters water-and-oil separator, viscous crude is collected.
Two, oily sludge processed process
As Fig. 1, field control station is mainly comprised of programmable logic controller (PLC), controller cabinet and cabinet auxiliary equipment.
When power turn-on switch, Open valve, oily sludge enters Venturi 2 by muddy water tank through transferpump 1, and under the effect of Venturi 2, its top produces negative pressure by the CaO tail pipe in the hopper of feed screw 3, through mud imported valve 419, enters modified retort;
When the stop on liquidometer 410 sends signal, whipping appts 401 starts operation, recycle pump 5 starts operation 60min, at this moment, ozone equipment 13 fully mixes ozone with mud via Venturi 2, static mixer 7, and this mixed solution enters ozone intensity control tank 8 and carries out the rear modified retort that refluxes of strong oxidation;
After 60min, 1# flocculation agent will enter in modified retort from 1# flocculation agent imported valve 421;
After static 40min, tank body top running water inlet valve 411 is opened, and operation 2min, discharges oil slick outside modified retort through upper cofferdam groove 415 during this period;
After oil extraction, start whipping appts 401, the oily sludge after modifier treatment enters spiral shell and presses (folded spiral shell) water extracter 12 to dewater; Now, 2# flocculation agent also enters spiral shell from modified retort simultaneously and presses (folded spiral shell) water extracter 12; The obnoxious flavour that modified retort produces is made to discharge from waste gas outlet valve 403 by gas blower 10, and fresh air is entered by fresh air inlet valve 405;
Within this equipment all concentrates on integrated skid 00, the size of skid 00 is:
Length × wide × height=7000 × 3000 × 3500mm, bores ground area: 30m
2.
Three, utilization of the present utility model
This oily sludge dewatering processing device and " oily(waste)water and sludge resource are processed integrated skid mounted equipment " (seeing another patent of invention of the utility model people: ZL201210145000.1) combination coupling can be processed the processing of oil field drilling fluids mud.
The processing of traditional drilling fluid mud is that drilling well sewage and mud out is temporarily placed in outdoor sludge sump, the bottom of sludge sump is placed with the thicker plastics of environmental regulations, and this is to prevent that harmful drilling fluid and mud are penetrated into the environmental practice of ground bottom; Then, adopting groove tank car that these drilling fluids and mud are hauled to the place that environmental protection specifies processes.This traditional way is a kind of helpless behave, time-consuming expensive again.
Oil field drilling fluids mud is processed in this combination coupling, waste liquid of drilling processing can be reached to pour water standard or reach < < integrated wastewater discharge standard > > (GB8978-1996) secondary standard of agriculture, so just can arrange with regard to extraterrestrial, and can be by emergency burial processing after sludge dewatering treatment, have that floor space is little, level of automation is high, mobility strong, can be with the processing of the motor-driven mobile treated drilling fluid of drill crew and mud.
The processing of waste liquid of drilling and mud is a hang-up in frustration oil field always, as it says that not equal to processing drilling sludge is that processing waste liquid of drilling is more appropriate, because treated drilling fluid is only a difficult problem, as long as waste liquid of drilling is handled well, can be with regard to extraterrestrial row, all problems has just been readily solved.Strictly say, account for well mud and should be divided into two kinds of mud, a kind of is the mud directly bringing out while accounting for well, this mud is through sample examination, main component is that silt, clay and coal do not have objectionable impurities, as long as this mud will cover superincumbent drilling fluid (sewage) and process and drain, just landfill on the spot, this kind of mud accounts for the more than 95% of mud total amount.So, objectionable impurities in drilling fluid: where polyacrylamide in organism, muriate (Repone K), salt and lead, zinc, mercury, iron, manganese, copper, sexavalent chrome and medicament, various types of resins etc. have all gone? it is soluble in water that these objectionable impuritiess have, what have swims in water, is blended in sewage.Particularly some heavy metals all exist in sewage with ionic condition, and they can not precipitate voluntarily.Thus, the mud in sewage is only harmful.Mud after this class sewage disposal is only objectionable impurities and just should shuts and be solidificated among cement.
1, the treatment process of waste liquid of drilling mud
First answer standard waste liquid of drilling sludge sump (see figure 4)
Waste liquid of drilling sludge sump should design a vertical shaft (concrete structure), and this vertical shaft only needs 50m
3get final product (5m × 5m × 2m), silo bottom is provided with submersible pump, and the main function of submersible pump is to carry sewage to retort, flocculating settling case; Vertical shaft top should arrange a sluice gate, and the major function of gate is to control the discharge of sewage; The global design of waste liquid of drilling sludge sump should have high and low poor, and water (flow) direction should tend to vertical shaft direction and flow.
2, waste liquid of drilling and sludge treatment equipment technical process (see figure 5)
1) while processing waste liquid of drilling, should open sewage gate, account for well waste liquid and will flow to continuously sludge sump vertical shaft 1.;
2) through submersible pump 2.;
3) squeeze into oxidizing reaction, flocculating settling case 3., now, CaO, O
3also enter oxidizing reaction, flocculating settling case 3. simultaneously, when after ozone and drilling fluid complete reaction, add 1# flocculation agent, after being uniformly mixed, start sedimentation, after sedimentation completes, at the bottom of detrimental impurity will be deposited in case, this mud is called harmful mud;
4) opening casing bottom valve makes this mud enter spiral sludge dewatering machine 4. to dewater, 4. 2# flocculation agent also enters spiral sludge dewatering machine simultaneously, and mud volume after dehydration obviously reduces, water ratio≤80%, this mud landfill on the spot, sealing is among vertical shaft (cement pit);
5) 3. spiral sludge dewatering machine dehydration gravity flow 4. enters oxidizing reaction, flocculating settling case;
6) when processing this mud, open filtration pump 5., oxidizing reaction, flocculating settling case supernatant liquor are 3. drawn in filtration pump import 5., supernatant liquor is squeezed into high precision fiber ball strainer and 6. carry out secondary filter, this filtered water can meet the agriculture standard of pouring water and also meet < < integrated wastewater discharge standard > > (GB8978-1996) secondary standard, so just can discharge on the spot.
This oily sludge dewatering processing device and " oily(waste)water and sludge resource are processed integrated skid mounted equipment " (seeing another patent of invention of the utility model people: ZL201210145000.1) combination coupling not only can be processed the processing of oil field drilling fluids mud, but also can process electroplating wastewater and dyeing waste water, lay special stress on is: ozone can be processed especially the waste water of heavy metal and not produce secondary pollution without any medicament.It is the best medicament for the treatment of of dyeing and printing that ozone can decolour especially.
Claims (2)
1. an oily sludge dewatering processing device, is characterized in that:
The entrance end of transferpump (1) connects oily sludge, the exit end of transferpump (1) is connected with the entrance end of Venturi (2), the upper end of Venturi (2) is connected with the discharge end of feed screw (3), and the exit end of Venturi (2) is connected with the mud imported valve (419) of the 1st modified retort (4) and the 2nd modified retort (9) respectively;
The entrance end of recycle pump (5) is connected with the circulating water outlet (412) of the 1st modified retort (4) and the 2nd modified retort (9) respectively, and the exit end of recycle pump (5) is connected with the import of ozone ejector (6);
The outlet of ozone ejector (6) is connected with the import of static mixer (7), and the outlet of static mixer (7) is connected with the import of ozone intensity control tank (8);
The exit end of ozone intensity control tank (8) is connected with the circulating water intake valve (417) of the 1st modified retort (4) and the 2nd modified retort (9) respectively;
In addition, the entrance end of recycle pump (5) is also connected with the feed opening of NaOH regulating tank (15), and the exit end of recycle pump (5) is also connected with the NaOH imported valve (420) of the 1st modified retort (4) and the 2nd modified retort (9) respectively;
1# flocculation agent is directly entered by the 1# flocculation agent imported valve (421) of the 1st modified retort (4) and the 2nd modified retort (9);
Fresh air is directly entered by the fresh air inlet valve (405) of the 1st modified retort (4) and the 2nd modified retort (9);
Gas blower (10) is connected with the waste gas outlet valve (403) of the 1st modified retort (4) and the 2nd modified retort (9) respectively;
The entrance end of spiral pump (11) is connected with the sludge outlet valve (418) of the 1st modified retort (4) and the 2nd modified retort (9) respectively, the entrance end of spiral pump (11) is also connected with the discharge port of 2# flocculation agent regulating tank (14), and the outlet of spiral pump (11) is directly connected with the import of spiral shell pressing dehydrator (12).
2. by a kind of oily sludge dewatering processing device claimed in claim 1, it is characterized in that:
The 1st described modified retort (4) is identical with the 2nd modified retort (9) structure, and it is shaped as round can or square chest;
The 1st modified retort (4) comprises lower whipping appts (40), cylindrical shell (402), waste gas outlet valve (403), upper cover (404), fresh air inlet valve (405), stir tightness system (406), blade (407), lower manhole (408), visor (409), liquidometer (410), running water inlet valve (411), circulating water outlet (412), lower cover (413), oil slick relief outlet (414), upper cofferdam groove (415), tank body feet (416), circulating water intake valve (417), sludge outlet valve (418), mud imported valve (419), NaOH imported valve (420), 1# flocculation agent imported valve (421),
Its position and annexation are:
From top to bottom, upper cover (404), cylindrical shell (402), lower cover (413) and feet (416) connect to form an entirety successively;
At left side, right side and the top of upper cover (404), be respectively arranged with fresh air inlet valve (405), waste gas outlet valve (403) and 1# flocculation agent imported valve (421);
At cylindrical shell (402) middle part, lower-left end and bottom righthand side, be respectively arranged with manhole (408), liquidometer (410) and visor (409);
In the middle of the bottom of lower cover (413), be provided with whipping appts (401), the stir shaft of whipping appts (401) on it be through tightness system (406), then connect the blade (407) that is positioned at lower cover (413);
At lower cover (413) left and right side, be respectively arranged with mud imported valve (419), circulating water intake valve 417 and sludge outlet valve (418).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201320647648.9U CN203568959U (en) | 2013-10-21 | 2013-10-21 | Oily sludge dewatering treatment equipment |
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| CN203568959U true CN203568959U (en) | 2014-04-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496837A (en) * | 2013-10-21 | 2014-01-08 | 程中和 | Oily sludge dehydration processing equipment and method thereof |
| FR3036698A1 (en) * | 2015-05-29 | 2016-12-02 | Orege | METHOD AND DEVICE FOR PURIFYING DOMESTIC OR INDUSTRIAL WATER. |
| CN113024053A (en) * | 2021-02-26 | 2021-06-25 | 南京大善环境科技有限公司 | Medical sludge inactivation, dehydration, closed circulation and drying HSDD treatment process and device |
-
2013
- 2013-10-21 CN CN201320647648.9U patent/CN203568959U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496837A (en) * | 2013-10-21 | 2014-01-08 | 程中和 | Oily sludge dehydration processing equipment and method thereof |
| FR3036698A1 (en) * | 2015-05-29 | 2016-12-02 | Orege | METHOD AND DEVICE FOR PURIFYING DOMESTIC OR INDUSTRIAL WATER. |
| WO2016193600A1 (en) * | 2015-05-29 | 2016-12-08 | Orege | Method and device for purifying domestic or industrial water |
| CN107667073A (en) * | 2015-05-29 | 2018-02-06 | 奥里格公司 | Family or industrial water purification method and equipment |
| US10442716B2 (en) | 2015-05-29 | 2019-10-15 | Orege | Method and device for purifying domestic or industrial water |
| CN113024053A (en) * | 2021-02-26 | 2021-06-25 | 南京大善环境科技有限公司 | Medical sludge inactivation, dehydration, closed circulation and drying HSDD treatment process and device |
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