CN109279710A - A kind of pretreatment system and method for semi-coke wastewater - Google Patents

A kind of pretreatment system and method for semi-coke wastewater Download PDF

Info

Publication number
CN109279710A
CN109279710A CN201811138031.8A CN201811138031A CN109279710A CN 109279710 A CN109279710 A CN 109279710A CN 201811138031 A CN201811138031 A CN 201811138031A CN 109279710 A CN109279710 A CN 109279710A
Authority
CN
China
Prior art keywords
waste water
semi
level
coke wastewater
multiphase flow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201811138031.8A
Other languages
Chinese (zh)
Other versions
CN109279710B (en
Inventor
孔庆伟
鲁礼民
陈芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xi'an Xu Xu Polytron Technologies Inc
Original Assignee
Xi'an Xu Xu Polytron Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xi'an Xu Xu Polytron Technologies Inc filed Critical Xi'an Xu Xu Polytron Technologies Inc
Priority to CN201811138031.8A priority Critical patent/CN109279710B/en
Publication of CN109279710A publication Critical patent/CN109279710A/en
Application granted granted Critical
Publication of CN109279710B publication Critical patent/CN109279710B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/40Devices for separating or removing fatty or oily substances or similar floating material
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281Installations for water purification using chemical agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/34Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions

Abstract

The present invention relates to a kind of semi-coke wastewater processing system and methods, the processing system includes that sequentially connected buffering pretreatment unit, multiphase flow device for effectively separating, mixed flocculation plant and double medium filter devices, the buffering pretreatment unit, the multiphase flow device for effectively separating, the mixed flocculation plant and double medium filter devices are further connected to oil product collecting tank.Semi-coke wastewater pretreatment system of the invention is closed system, specific aim treatment process is used for every primary wastewater, so that waste water treatment efficiency is greatly improved compared to existing stewing process method, and next stage is arrived after every coagulation, not the problem of not interfere with each other between processing level, and can effectively solve the problem that pernicious gas leakage;Occupied area is small, and treatment effeciency is high.

Description

A kind of pretreatment system and method for semi-coke wastewater
Technical field
The invention belongs to coal chemical industrial waste water processing technology fields, and in particular to a kind of pretreatment system of semi-coke wastewater and side Method.
Background technique
Semi-coke wastewater is also known as semicoke waste water, refers to low-disintegration coal in middle low temperature distillation (about 600~800 DEG C) process and coal Gas purification, a kind of industrial wastewater for being formed during the quenching of semi-coke steam, the waste water have " four high one is few " (high COD, high oil, High ammonia nitrogen, high phenol, waste water yield are few) the characteristics of, wherein the substance containing a large amount of difficult to degrade, high toxicities and complicated component, such as The substances such as ammonia, phenol, petroleum-type.
Still mature semi-coke wastewater pretreating process, semi-coke enterprise be not directly heavy by semi-coke wastewater warp both at home and abroad at present After the quiescent settling of shallow lake pond, by water coal tar and solid suspension simply remove after directly as coke quenching water use.Sedimentation basin The method low efficiency of sedimentation is influenced after processing that coal tar content and solid suspension content index are unstable in water by internal structure It is fixed.
Since sedimentation basin is outdoor open pond, take up a large area, and since total volume is larger, cause to wastewater disposal basin When middle addition wastewater treatment drug, pharmaceutical quantities are big, and drug reaction effect is poor, and waste water treatment efficiency is low;Another aspect semi-coke is useless Contain a large amount of harmful substance in water, it is readily volatilized in open wastewater disposal basin or entered in air with steam, it pollutes Environment.Therefore, to given off in semi-coke production process high concentrated organic wastewater effectively pre-processed it is extremely urgent, pretreatment The high efficiency and reliability of system directly affect the normal operation of subsequent production technique.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the present invention provides a kind of pretreatment systems of semi-coke wastewater And method.The technical problem to be solved in the present invention is achieved through the following technical solutions:
The embodiment of the invention provides a kind of semi-coke wastewater pretreatment systems, including sequentially connected buffering pretreatment dress It sets, multiphase flow device for effectively separating, mix flocculation plant and double medium filter devices, the buffering pretreatment unit, the multiphase Stream device for effectively separating, the mixed flocculation plant and double medium filter devices are further connected to oil product collecting tank, wherein
The input terminal of the buffering pretreatment unit is connected with semi-coke wastewater efferent duct, for inputting the semi-coke wastewater, And mink cell focus separating treatment is carried out, obtain mink cell focus and secondary waste water;
The multiphase flow device for effectively separating obtains three-level waste water for carrying out light oil separation to the secondary waste water;
The mixed flocculation plant obtains level Four waste water for carrying out flocculating setting to the suspended matter in the three-level waste water;
The output end of double medium filter devices connects drainage pipeline, for being filtered place to the level Four waste water Reason, and be discharged from the drainage pipeline.
In a specific embodiment, the semi-coke wastewater efferent duct and it is described buffering pretreatment unit input terminal it Between pipeline on be provided with static mixer, the first chemicals dosing plant is connected to static mixer by pipeline.
In a specific embodiment, the multiphase flow device for effectively separating includes hypergravity eddy flow pre-separation cylinder and more Phase separation chamber, the inlet of the hypergravity eddy flow pre-separation cylinder are connect with the buffering pretreatment unit, the hypergravity rotation The liquid outlet of stream pre-separation cylinder is connect with the multi-phase separation room;
Flow pattern adjustment device, level-one oil removing inclined plate, partition, coalescence are set gradually in the multi-phase separation room along its length Device, second level oil removing inclined plate, every mud plate and overflow weir.
In a specific embodiment, the inner cavity of the mixed flocculation plant is provided with agitating device, the mixed flocculation dress It sets through pipeline and the connection of the second chemicals dosing plant.
In a specific embodiment, pacify between the buffering pretreatment unit and the multiphase flow device for effectively separating Equipped with the first booster pump, the second booster pump, institute are installed between the multiphase flow device for effectively separating and the mixed flocculation plant It states and third booster pump is installed between mixed flocculation plant and double medium filter devices.
In a specific embodiment, further include full-automatic control system, the full-automatic control system respectively with institute Buffering pretreatment unit, the multiphase flow device for effectively separating, the mixed flocculation plant and double medium filter devices is stated to connect It connects, for the buffering pretreatment unit, the multiphase flow device for effectively separating, the mixed flocculation plant and double media Filter device carries out signal control.
Another embodiment of the present invention provides a kind of semi-coke wastewater preprocess method, comprising the following steps:
Step 1: mink cell focus separating treatment being carried out to the semi-coke wastewater, obtains secondary waste water;
Step 2: light oil separation being carried out to the secondary waste water, obtains three-level waste water;
Step 3: flocculating setting being carried out to the suspended matter in the three-level waste water, obtains level Four waste water;
Step 4: being discharged after being filtered processing to the level Four waste water.
In a specific embodiment, the step 1 includes:
Demulsifier is added into the semi-coke wastewater;
Semi-coke wastewater after addition demulsifier is stood N hours, makes mink cell focus and water stratification, N is greater than 1.
In a specific embodiment, the step 2 specifically:
Hypergravity separation and flow pattern adjustment are carried out to the secondary waste water, obtain lightweight composite waste;
Coarse separation is carried out to the lightweight composite waste, makes mink cell focus, light oil, water, sludge layering, it is useless to obtain three-level Water.
In a specific embodiment, the step 3 includes:
Flocculant is added into the three-level waste water;
Three-level waste water after addition flocculant is stirred.
Compared with prior art, beneficial effects of the present invention:
1, semi-coke wastewater pretreatment system of the invention is closed system, buffers pretreatment unit, multiphase flow by setting Device for effectively separating, mixed flocculation plant and double medium filter devices, so that semi-coke wastewater is in flow regime during processing, Four parts of system work at the same time, so that semi-coke wastewater treatment effeciency is higher, and can effectively solve the problem that pernicious gas leaks outside The problem of;On the other hand, demulsifier is added in buffering pretreatment stage, flocculant is being added to the three-level wastewater treatment stage, this The medicament of sample addition is more targeted, and medicament service efficiency is higher, therefore can reduce pharmaceutical use, reduces cost.
2, in the embodiment of the present invention, buffering pretreatment unit, multiphase flow device for effectively separating, mixed flocculation plant and double media Filter device is further connected to oil product collecting tank, can effectively be handled semi-coke wastewater, while by institute in semi-coke wastewater The coal tar and greasy filth contained is recycled, and the operating cost of environmental protecting device is considerably reduced, and is imitated to later period industrial applications Fruit is especially pronounced.
3, the multiphase flow device for effectively separating in the embodiment of the present invention uses multiphase flow separation, coalescence technology, so that lightweight On oil swims on water, mink cell focus and sludge deposition under water, realize waterborne oily and underwater oil efficiently separate;Eddy flow is set in device The components such as pre-separation, flow pattern adjustment, coalescent pack, inclined plate are sufficiently high by Water-In-Oil, oil-in-water partial size molecule in secondary waste water Effect separation, then coalescing devices is relied on efficiently to be coalesced, it realizes that oil droplet and water droplet become continuous phase from dispersed phase, guarantees to contain in water Oil index requirement.
4, semi-coke wastewater pretreatment system provided by the invention and method handle work using specific aim for every primary wastewater Skill, so that waste water treatment efficiency is greatly improved compared to existing stewing process method, and arrives next stage after every coagulation, It is not interfere with each other between processing level, therefore is capable of handling a large amount of semi-coke wastewater.The present invention utilizes lesser place and resource energy Enough solve the problem of pretreatment of a large amount of semi-coke wastewater.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of semi-coke wastewater pretreatment system provided by the invention;
Fig. 2 is the flow chart of semi-coke wastewater preprocess method provided by the invention;
Fig. 3 is the structural schematic diagram of multiphase flow device for effectively separating provided by the invention;
Fig. 4 is the structural schematic diagram of the hypergravity eddy flow pre-separation cylinder of multiphase flow device for effectively separating provided by the invention;
Fig. 5 is that the flow pattern of multiphase flow device for effectively separating provided by the invention adjusts the structural schematic diagram of device;
Fig. 6 is the energy absorber structural schematic diagram of multiphase flow device for effectively separating provided by the invention;
Fig. 7 is the structural schematic diagram of multiphase flow device for effectively separating level-one oil removing inclined plate provided by the invention;
Fig. 8 is the structural schematic diagram of multiphase flow device for effectively separating second level oil removing inclined plate provided by the invention;
Fig. 9 is the structural schematic diagram of multiphase flow device for effectively separating level-one coalescing devices provided by the invention;
Figure 10 is the structural schematic diagram of the second level coalescing devices of semi-coke wastewater multiphase flow device for effectively separating of the present invention;
Figure 11 is the structural schematic diagram of the overflow weir of multiphase flow device for effectively separating provided by the invention;
Figure 12 is the structural schematic diagram of the partition of multiphase flow device for effectively separating provided by the invention.
Description of symbols:
1, inlet;2, hypergravity eddy flow pre-separation cylinder;3, declining liquid tube;4, flow pattern adjusts device;5, energy absorber;6, First sludge discharging port;7, level-one oil removing inclined plate;8, partition;9, level-one coalescing devices;10, second level coalescing devices;11, second level oil removing Inclined plate;12, safety valve;13, exhaust outlet;14, oil-water interface tool;15, sample tap;16, water chamber liquidometer;17, overflow weir; 18, grease chamber liquidometer;19, oil outlet;20, support;21, discharge outlet;22, every mud plate;23, the second sewage draining exit;24, third blowdown Mud mouth;25, shell;2-1, top plate;2-2, spiral plate;2-3, cylinder shell;2-4, support tube;4-1, liquid barrier;4-2, consolidate Determine orifice plate;5-1, energy-absorbing plate;5-2 support frame;7-1, the first fixed plate;7-2 rib plate;9-1, the first stuffing frame;9-2, first are filled out Material;10-1, the second stuffing frame;10-2, the second filler;11-1, the second fixed plate;11-2, rack gear.
Specific embodiment
Further detailed description is done to the present invention combined with specific embodiments below, but embodiments of the present invention are not limited to This.
Embodiment one
In order to which the semi-coke wastewater pretreating process for overcoming the problems, such as present exists, is efficiently separated the present invention provides one kind and be The semi-coke high concentrated organic wastewater recycling pretreatment system that system, reliable for operation, stable and contamination-free generate.
Specifically as shown in FIG. 1, FIG. 1 is the structural schematic diagrams of semi-coke wastewater pretreatment system provided in this embodiment;This Embodiment provides a kind of semi-coke wastewater pretreatment system, including sequentially connected buffering pretreatment unit, multiphase flow efficiently separate Device, mixed flocculation plant and double medium filter devices, wherein buffer the input terminal and semi-coke wastewater efferent duct phase of pretreatment unit Even, semi-coke wastewater initially enters buffering pretreatment unit, which has the function of caching semi-coke wastewater, slows down semi-coke wastewater Flow velocity, under gravity, mink cell focus and sludge deposition, light oil and waterborne floating realize the pre- of heavy coal tar and waste water Separation, and buffer pretreatment unit and connected with oil product collecting tank, mink cell focus and greasy filth are settled down to buffering pretreatment unit bottom, And enter oil product collecting tank, and the secondary waste water isolated then passes through pipeline and enters multiphase flow device for effectively separating.
It should be noted that the pipeline between the semi-coke wastewater efferent duct and the input terminal of the buffering pretreatment unit On be provided with static mixer, the first chemicals dosing plant is connected to static mixer by pipeline.Specifically, the first chemicals dosing plant is used In adding demulsifier into semi-coke wastewater, demulsifier mixes in static mixer with semi-coke wastewater.Due to the effect of demulsifier Certain reaction time is needed, in the present invention, by just adding demulsifier before semi-coke wastewater enters pretreatment system, then By the buffering preprocessing process of the first procedure, when semi-coke wastewater reaches in second operation work multiphase flow device for effectively separating When, then demulsifier preferably can generate preferable drug effect to oil-water emulsion, and cooperation multiphase flow device for effectively separating can take Obtain better break milk separation effect.Less dose may be implemented and generate better drug effect, save the use of pharmaceutical quantities, solve The problem of drug effectiveness difference in the prior art.
Output pump, buffering pretreatment dress are additionally provided between semi-coke wastewater efferent duct and the input terminal for buffering pretreatment unit It sets and the first booster pump is installed between multiphase flow device for effectively separating, the use of pump, so that become can for the flow velocity of semi-coke wastewater Control also becomes controllable to the treating capacity of semi-coke wastewater in the unit time.
As shown in figure 3, multiphase flow device for effectively separating includes hypergravity eddy flow pre-separation cylinder and multi-phase separation room, it is described super The inlet of gravity eddy flow pre-separation cylinder is connect with the buffering pretreatment unit, and the hypergravity eddy flow pre-separation cylinder goes out liquid Mouth is connect with the multi-phase separation room;
Flow pattern adjustment device, level-one oil removing inclined plate, partition, coalescence are set gradually in the multi-phase separation room along its length Device, second level oil removing inclined plate, every mud plate and overflow weir.
Specifically, secondary waste water enters hypergravity eddy flow pre-separation cylinder through inlet, pass through the eddy flow runner of inner setting It carries out continuous phase water-oil separating and caches, subsequently into multi-phase separation room.
It should be noted that the first end of hypergravity eddy flow pre-separation cylinder is connect with inlet 1, hypergravity eddy flow pre-separation The second end of cylinder 2 is fixedly connected with the shell 25 of multiphase flow device for effectively separating, under the second end of hypergravity eddy flow pre-separation cylinder 2 Side is equipped with declining liquid tube 3, flow pattern adjustment device 4 and energy absorber 5, declining liquid tube 3 and plays fluid guiding role to liquid flow direction; As shown in figure 5, flow pattern adjustment device 4 is made of liquid barrier 4-1 and fixed orifice plate 4-2, effect is by mixing liquid State adjustment, from turbulent layer to stratosphere transition;As shown in fig. 6, energy absorber 5 is made of energy-absorbing plate 5-1 and support frame 5-2, tool Body, the first end of declining liquid tube is fixedly connected with inner walls, and is connected to hypergravity eddy flow pre-separation cylinder;The declining liquid tube Second end is fixedly connected with flow pattern adjustment device;Flow pattern adjustment device is immobilized in the shell on wall;Energy absorber and shell Internal wall is fixedly connected, and the lower section of flow pattern adjustment device is arranged in.
As shown in figure 4, hypergravity eddy flow pre-separation cylinder 2 includes: top plate 2-1, spiral plate 2-2, cylinder shell 2-3 and branch Stay tube 2-4;Wherein, top plate is set to the top of the cavity of cylinder shell composition, and is fixedly connected with cylinder shell;Spiral Plate is set to the inside of the cavity of cylinder shell composition, and spirals about support tube and be fixedly connected;One end and top of support tube Plate is fixedly connected.Since spiral plate is fixed on support tube, and have gap between spiral plate and cylinder shell, support tube also with Top plate is fixed, so the screw of hypergravity eddy flow pre-separation cylinder 2 of the invention can be extracted out from cylinder, very convenient dimension Repair replacement.Hypergravity eddy flow pre-separation cylinder 2 of the invention, cylinder is bolted and fixed with shell 25, internal helicoid plate Fluid course is formed, grease items centrifugal force can effectively be enhanced by the shape and size that design runner, thus will mixing The alternate sufficient making contact of grease in liquid improves the alternate isolated efficiency of grease, and inner flow passage screw pitch is 50~500mm, The screw pitch of the size can be most optimally by so that mink cell focus, greasy filth and lightweight composite waste be layered, and different pitch dimensions produces Raw centrifugal force variation, causes effect different.2 material of hypergravity eddy flow pre-separation cylinder can be metal or non-according to dielectric property Metal.
Specific working principle are as follows: will be so that weight under the centrifugal action that secondary waste water passes through hypergravity eddy flow pre-separation cylinder 2 Matter oil, greasy filth and the layering of lightweight composite waste, subsequently into the declining liquid tube 3 of 2 lower section of hypergravity eddy flow pre-separation cylinder, declining liquid tube 3 To mink cell focus, greasy filth and lightweight composite waste carry out water conservancy diversion enter flow pattern adjustment device 4 in, and mink cell focus, greasy filth and Lightweight composite waste generates shock to the energy-absorbing plate 5-1 of energy absorber 5 under the effect of gravity, further strengthens demulsification, completes The alternate initial gross separation of grease, mink cell focus and greasy filth settle under the effect of impact of energy-absorbing plate 5-1 at this time, and the lightweight of initial gross separation is mixed Close waste water by flow pattern adjust device 4 on multiple through-holes on influxs flow pattern adjust device 4 upper layer, by sludge with Solid suspension is blocked in lower layer, completes the initial gross separation of silt particle and solid suspension, and mink cell focus and greasy filth pass through the first blowdown 6 outlets of mouth, lightweight composite waste enter multi-phase separation room.
The combined use of hypergravity cylinder 2, manifold adjustment device 4 and energy absorber 5, to the active water of semi-coke wastewater Demulsification is washed, the hydraulics of multi-phase separation are improved, accelerates oil, water, sludge and solid suspension separating rate.
Further, lightweight composite waste is mutually divided after entering multi-phase separation room by level-one oil removing inclined plate progress grease again From being set to declining liquid tube 3 and flow pattern point as shown in fig. 7, level-one oil removing inclined plate 7 is made of the first fixed plate 7-1 and rib plate 7-2 Cloth adjusts the right side of device 4, and is fixedly connected with the inner wall of the shell of multiphase flow device for effectively separating 25, and lightweight composite waste is logical After crossing this plate, each gravity mutually generated according to density of grease is different, by that can enhance grease alternate separative efficiency when rib plate.This hair The inclined plate height of bright level-one oil removing inclined plate 7 is 0.1~2m, and tilt angle is 50~75 °.Part greasy filth and solid suspension by every The gear of plate 8 stays, and partition 8 is arranged between level-one oil removing inclined plate 7 and level-one coalescing devices 9, on the vertical fixed inner wall of shell 25 again, Structure is as shown in figure 12, for reducing the greasy filth and fixed suspended matter that enter level-one coalescing devices 9.It should be noted that partition 8 It keeps off the position stayed and is provided with sewage draining exit, sewage draining exit is connected with oil product collecting tank, and greasy filth and solid suspension pass through sewage draining exit outlet.
Further, lightweight composite waste enters level-one coalescing devices 9 after level-one oil removing inclined plate 7, as shown in figure 9, one Grade coalescing devices 9 are made of the first stuffing frame 9-1 and the first filler 9-2, and effect is primary emulsification that can be alternate by grease Liquid is demulsified, is coalesced, in level-one coalescing devices 9 can oil by partial size less than 80 microns, water drop carry out alternate demulsification Coalescence carries out same phase coalescence according to oil, the difference of hydrone surface tension, completes the preliminary coarse separation of grease, and subsequent lightweight is mixed It closes waste water and enters second level coalescing devices 10, as shown in Figure 10, second level coalescing devices 10 have the second stuffing frame 10-1 and the second filler 10-2 composition, effect is that the alternate remaining emulsion of the grease after coalescing level-one is demulsified, is coalesced, in second level coalescing devices In can further speed up alternate partial size be greater than 80 microns of oil, hydrone drop less than 100 microns coalescence.
Further, lightweight composite waste enters second level oil removing inclined plate through second level coalescing devices, as shown in figure 8, second level is removed Oily inclined plate 11 is made of the second fixed plate 11-1 and rack gear 11-2, is set to the right side of second level coalescing devices, and with shell 25 Inner wall is fixedly connected, and mutually passes through rack gear 11- by the grease after level-one oil removing inclined plate, level-one coalescing devices and second level coalescing devices Oil-water emulsion surface tension can be destroyed after 2, the gravity then generated according to the density of each phase of grease is different, further increases The alternate separative efficiency of grease.Then the lightweight composite waste by oily aqueous phase separation enters separating flowing field, in the present embodiment, separation Smoothness is the advection area in multi-phase separation room, specifically, providing stabilization equipped with advection section in separating flowing field for grease drop Flow field condition, under the stable advection environment, according to density contrast, between mink cell focus/greasy filth sinks, light oil floats, water is placed in the middle.
It should be noted that the bottom in advection area is additionally provided with third sewage draining exit 24, the greasy dirt discharge for that will build up.
Specifically, being provided in multi-phase separation room every mud plate 22 and overflow weir 17, lightweight composite waste passes through every mud plate 22 enter effluent storage area, and overflow weir 17 is arranged in effluent storage area, and the structure of overflow weir 17 is as shown in figure 11, every mud plate 22 The greasy filth in advection area is stopped, three-level waste water passes through, and overflow weir 17 stops three-level waste water, and the oil slick on waste water upper layer is by overflowing It flows weir plate 17 and enters oil product storage room, greasy filth Resistance is provided with the second sewage draining exit 23, greasy filth is discharged, and effluent storage area is also set It is equipped with discharge outlet 21, is connect by pipeline with mixed flocculation plant, oil product storage room is provided with oil discharge outlet 19.
It should be noted that the depth of packing of level-one coalescing devices 9 of the present invention: 0.3~4m, oil removal rate are 90~95%, Porosity is 70~85%;The depth of packing of second level coalescing devices 10 is 0.3~4m, and oil removal rate is 95~99%, and porosity is 85~90%.
In the present embodiment, multiphase flow device for effectively separating uses high-efficiency cyclone isolation technics, dedicated coalescence technology, improves and divides From speed, the sedimentation time is reduced, multiphase flow device for effectively separating is sufficiently by Water-In-Oil, oil-in-water partial size molecule in secondary waste water It efficiently separates, then core component is relied on efficiently to be coalesced, realize that oil droplet and water droplet become continuous phase from dispersed phase, realize grease Efficient coarse separation, guarantee water in oil-containing index request, provide qualified continuous-stable water quality for new technology last part technology.
It should be noted that the top of the shell 25 of multiphase flow device for effectively separating of the invention is additionally provided with safety valve 12, exhaust outlet 13, oil-water interface tool 14, sample tap 15, water chamber liquidometer 16 and grease chamber liquidometer 18;Wherein water chamber liquidometer 16 On shell 25 before overflow weir 17 is arranged in, grease chamber liquidometer 18 is arranged on the shell 25 after overflow weir 17.
Semi-coke wastewater multiphase flow device for effectively separating of the invention further includes pedestal 20, and there are two pedestals 20, and shell 25 is logical Cross pedestal 20 by whole device fix on the ground or other fixtures on.
Further, the inner cavity of the mixed flocculation plant is provided with agitating device, the mixed flocculation plant by pipeline and The connection of second chemicals dosing plant.
Second booster pump is installed between multiphase flow device for effectively separating and mixed flocculation plant, is equipped in mixed flocculation plant Agitating device, when three-level waste water flow at high speed under the action of the second booster pump, the second chemicals dosing plant to high speed enter three Flocculant is added in grade waste water, so that three-level waste water is sufficiently mixed with medicament, then by agitating device stirring action, accelerates drug effect Reaction, so that flocculating effect is more preferable, reaction speed faster, improves flocculation settling velocity, and the solid quickly removed in waste water suspends Object.Treated, and level Four waste water enters double medium filter devices.
Further, third booster pump is installed between the mixed flocculation plant and double medium filter devices.Third Booster pump can control the speed into double medium filter devices, guarantee physical filtering quality.Still containing few in level Four waste water Amount oil and floccule, double medium filter devices are last one of physical filtering process of pretreatment system, are internally provided with gravel Supporting layer, coarse sands layer, fine sand layer, anthracite coal measure (contain coal tar in waste water and solid suspension processing to qualified index in water Oil≤
500mg/L, suspension content≤20mg/L), treated, and waste water enters aftertreatment systems.
Buffering pretreatment used by above-described embodiment+efficiently multiphase flow separation+mixes the work of flocculation treatment+bis- media filtrations Skill process, effectively by waste water coal tar and solid suspension handled, after processing contain oil content≤500mg/L, hang Floating object content≤20mg/L provides new pretreating process technology to the recycling comprehensive treatment of semi-coke wastewater, is semi-coke row The development of industry green circulatory lays the foundation.
Further, it should be noted that pretreatment system provided in this embodiment further includes full-automatic control system, institute Full-automatic control system is stated to fill with the buffering pretreatment unit, the multiphase flow device for effectively separating, the mixed flocculation respectively It sets and is connected with double medium filter devices, for the buffering pretreatment unit, the multiphase flow device for effectively separating, institute It states mixed flocculation plant and double medium filter devices carries out signal control.
The buffering pretreatment unit, the multiphase flow device for effectively separating, the mixed flocculation plant and double media Starting, pause, operating and other internal controls of filter device etc. are controlled by full-automatic control system.Operator It only needs to operate full-automatic control system, the control to links in this pretreatment system can be completed.
Embodiment two
On the basis of the above embodiments, the embodiment of the present invention utilizes buffering pretreatment dress sequentially connected in embodiment one It sets, multiphase flow device for effectively separating, mix flocculation plant and double medium filter devices to semi-coke wastewater progress preprocess method, specifically Implementation process as shown in Fig. 2, Fig. 2 be semi-coke wastewater preprocess method provided in this embodiment flow chart.This semi-coke wastewater Preprocess method the following steps are included:
Step 1: mink cell focus separating treatment being carried out to the semi-coke wastewater, obtains secondary waste water;Specifically, using static mixed Demulsifier is added into the semi-coke wastewater in clutch;Semi-coke wastewater after addition demulsifier is stood in buffering pretreatment unit N hours, make mink cell focus and water stratification, mink cell focus enters oil product collecting tank, and secondary waste water is discharged by pipeline, wherein waste water is quiet The time is set according to the setting of the integrated conditions such as actual waste water amount, the reaction speed of demulsifier and temperature condition.
It should be noted that the specific time of repose of semi-coke wastewater needs combined water and temperature condition to be set, herein It is not specifically limited.
Step 2: light oil separation being carried out to the secondary waste water, obtains three-level waste water;Specifically, efficient using multiphase flow The hypergravity eddy flow pre-separation cylinder of separator carries out hypergravity separation to the secondary waste water, obtains lightweight composite waste;? Multi-phase separation room carries out oil removing, coarse separation to the lightweight composite waste, makes mink cell focus/greasy filth, three-level waste water water, light oil point Layer, and be discharged by different outlets.
Step 3: flocculating setting being carried out to the suspended matter in the three-level waste water, obtains level Four waste water;Specifically, to mixed wadding Flocculant is added in solidifying device;To addition flocculant after three-level waste water be stirred, accelerate suspended substance sedimentation, qualified waste water into Enter double medium filter devices.
Step 4: being discharged after being filtered processing to the level Four waste water.Specifically, double medium filter devices are to entrance Level Four waste water carries out physical filtering, further removes oil and suspended contamination in level Four waste water.
The technical solution adopted in the present invention is mainly shown as using buffering pretreatment+efficiently multiphase flow separation+mixed flocculation The process flow of processing+bis- media filtrations.Specific aim treatment process is used for every primary wastewater, so that waste water treatment efficiency phase It is greatly improved than existing stewing process method, and arrives next stage after every coagulation, handle and do not interfere with each other between level, Therefore it is capable of handling a large amount of semi-coke wastewater.The present invention is able to solve a large amount of semi-coke wastewater using lesser place and resource Problem of pretreatment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features; And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and Range.

Claims (10)

1. a kind of semi-coke wastewater pretreatment system, which is characterized in that high including sequentially connected buffering pretreatment unit, multiphase flow Effect separator, mixed flocculation plant and double medium filter devices, the buffering pretreatment unit, the multiphase flow efficiently separate dress It sets, the mixed flocculation plant and double medium filter devices are further connected to oil product collecting tank, wherein
The input terminal of the buffering pretreatment unit is connected with semi-coke wastewater efferent duct, for inputting the semi-coke wastewater, goes forward side by side Row mink cell focus separating treatment, obtains mink cell focus and secondary waste water;
The multiphase flow device for effectively separating obtains three-level waste water for carrying out light oil separation to the secondary waste water;
The mixed flocculation plant obtains level Four waste water for carrying out flocculating setting to the suspended matter in the three-level waste water;
The output end of double medium filter devices connects drainage pipeline, for being filtered processing to the level Four waste water, and It is discharged from the drainage pipeline.
2. pretreatment system according to claim 1, which is characterized in that the semi-coke wastewater efferent duct and the buffering are pre- Static mixer is provided on pipeline between the input terminal of processing unit, the first chemicals dosing plant is connected to static mixed by pipeline Clutch.
3. pretreatment system according to claim 1, which is characterized in that the multiphase flow device for effectively separating includes overweight Power eddy flow pre-separation cylinder and multi-phase separation room, the inlet and the buffering pretreatment unit of the hypergravity eddy flow pre-separation cylinder Connection, the liquid outlet of the hypergravity eddy flow pre-separation cylinder are connect with the multi-phase separation room;
Flow pattern adjustment device, level-one oil removing inclined plate, partition, coalescence dress are set gradually in the multi-phase separation room along its length Set, second level oil removing inclined plate, every mud plate and overflow weir.
4. pretreatment system according to claim 1, which is characterized in that the inner cavity of the mixed flocculation plant is provided with stirring Device, the mixed flocculation plant are connected by pipeline and the second chemicals dosing plant.
5. pretreatment system according to claim 1, which is characterized in that the buffering pretreatment unit and the multiphase flow First booster pump is installed between device for effectively separating, is pacified between the multiphase flow device for effectively separating and the mixed flocculation plant Equipped with the second booster pump, third booster pump is installed between the mixed flocculation plant and double medium filter devices.
6. pretreatment system according to claim 1, which is characterized in that further include full-automatic control system, it is described it is complete from Autocontrol system respectively with the buffering pretreatment unit, the multiphase flow device for effectively separating, the mixed flocculation plant and institute Double medium filter device connections are stated, for the buffering pretreatment unit, the multiphase flow device for effectively separating, the mixed wadding Solidifying device and double medium filter devices carry out signal control.
7. a kind of semi-coke wastewater preprocess method, which comprises the following steps:
Step 1: mink cell focus separating treatment being carried out to the semi-coke wastewater, obtains secondary waste water;
Step 2: light oil separation being carried out to the secondary waste water, obtains three-level waste water;
Step 3: flocculating setting being carried out to the suspended matter in the three-level waste water, obtains level Four waste water;
Step 4: being discharged after being filtered processing to the level Four waste water.
8. semi-coke wastewater preprocess method according to claim 7, which is characterized in that the step 1 includes:
Demulsifier is added into the semi-coke wastewater;
Semi-coke wastewater after addition demulsifier is stood N hours, makes mink cell focus and water stratification.
9. semi-coke wastewater preprocess method according to claim 7, which is characterized in that the step 2 specifically:
Hypergravity separation and flow pattern adjustment are carried out to the secondary waste water, obtain lightweight composite waste;
Coarse separation is carried out to the lightweight composite waste, makes mink cell focus, light oil, water, sludge layering, obtains three-level waste water.
10. semi-coke wastewater preprocess method according to claim 7, which is characterized in that the step 3 includes:
Flocculant is added into the three-level waste water;
Three-level waste water after addition flocculant is stirred.
CN201811138031.8A 2018-09-28 2018-09-28 Pretreatment system and method for semi-coke wastewater Active CN109279710B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811138031.8A CN109279710B (en) 2018-09-28 2018-09-28 Pretreatment system and method for semi-coke wastewater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811138031.8A CN109279710B (en) 2018-09-28 2018-09-28 Pretreatment system and method for semi-coke wastewater

Publications (2)

Publication Number Publication Date
CN109279710A true CN109279710A (en) 2019-01-29
CN109279710B CN109279710B (en) 2021-09-14

Family

ID=65182371

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811138031.8A Active CN109279710B (en) 2018-09-28 2018-09-28 Pretreatment system and method for semi-coke wastewater

Country Status (1)

Country Link
CN (1) CN109279710B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113181814A (en) * 2021-03-12 2021-07-30 北京化工大学 A hypergravity reaction system for oil-solid separation

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6289794A (en) * 1986-10-08 1987-04-24 Taihoo Kogyo Kk Production of fuel additive
CN201309877Y (en) * 2008-12-15 2009-09-16 上海埃梯梯恒通先进水处理有限公司 Coking wastewater treatment recycling device
CN103113003A (en) * 2013-03-11 2013-05-22 南京紫都环保科技有限公司 Complete equipment and process for processing coal tar wastewater
WO2013091032A1 (en) * 2011-12-22 2013-06-27 Tomov Petko Ivanov Method for processing of oil sludge and oil sediments
CN105060628A (en) * 2015-08-04 2015-11-18 重庆杰润科技有限公司 Semi-coke wastewater treatment method
CN105174558A (en) * 2015-10-21 2015-12-23 北京翰祺环境技术有限公司 Pretreatment method for removing oil by gas-making wastewater
CN106045200A (en) * 2016-06-27 2016-10-26 深圳市翰唐环保科技有限公司 Coking wastewater treatment technique
CN106145252A (en) * 2016-07-06 2016-11-23 湖州深净环境科技有限公司 A kind of plural serial stage oil-water separation system for processing oil-polluted water
CN106396196A (en) * 2016-11-29 2017-02-15 中冶华天南京工程技术有限公司 Deep treating method and deep treating device for oily wastewater
CN106477825A (en) * 2016-12-02 2017-03-08 东北大学 Coking waste water treatment method
CN206502636U (en) * 2017-01-16 2017-09-19 徐胜琴 A kind of high-efficiency cyclone coalesces oily-water seperating equipment
CN107739124A (en) * 2017-09-14 2018-02-27 云南天朗环境科技有限公司 A kind of Zero-discharge coked wastewater processing method
CN108002614A (en) * 2018-01-10 2018-05-08 东莞市盛源石油化工有限公司 A kind of oil-containing sewage treatment technique
CN108147612A (en) * 2016-12-05 2018-06-12 中国科学院大连化学物理研究所 A kind of method of dry distillation of coal wastewater treatment

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6289794A (en) * 1986-10-08 1987-04-24 Taihoo Kogyo Kk Production of fuel additive
CN201309877Y (en) * 2008-12-15 2009-09-16 上海埃梯梯恒通先进水处理有限公司 Coking wastewater treatment recycling device
WO2013091032A1 (en) * 2011-12-22 2013-06-27 Tomov Petko Ivanov Method for processing of oil sludge and oil sediments
CN103113003A (en) * 2013-03-11 2013-05-22 南京紫都环保科技有限公司 Complete equipment and process for processing coal tar wastewater
CN105060628A (en) * 2015-08-04 2015-11-18 重庆杰润科技有限公司 Semi-coke wastewater treatment method
CN105174558A (en) * 2015-10-21 2015-12-23 北京翰祺环境技术有限公司 Pretreatment method for removing oil by gas-making wastewater
CN106045200A (en) * 2016-06-27 2016-10-26 深圳市翰唐环保科技有限公司 Coking wastewater treatment technique
CN106145252A (en) * 2016-07-06 2016-11-23 湖州深净环境科技有限公司 A kind of plural serial stage oil-water separation system for processing oil-polluted water
CN106396196A (en) * 2016-11-29 2017-02-15 中冶华天南京工程技术有限公司 Deep treating method and deep treating device for oily wastewater
CN106477825A (en) * 2016-12-02 2017-03-08 东北大学 Coking waste water treatment method
CN108147612A (en) * 2016-12-05 2018-06-12 中国科学院大连化学物理研究所 A kind of method of dry distillation of coal wastewater treatment
CN206502636U (en) * 2017-01-16 2017-09-19 徐胜琴 A kind of high-efficiency cyclone coalesces oily-water seperating equipment
CN107739124A (en) * 2017-09-14 2018-02-27 云南天朗环境科技有限公司 A kind of Zero-discharge coked wastewater processing method
CN108002614A (en) * 2018-01-10 2018-05-08 东莞市盛源石油化工有限公司 A kind of oil-containing sewage treatment technique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113181814A (en) * 2021-03-12 2021-07-30 北京化工大学 A hypergravity reaction system for oil-solid separation

Also Published As

Publication number Publication date
CN109279710B (en) 2021-09-14

Similar Documents

Publication Publication Date Title
CN106007209B (en) A kind of oil refinery's sewage oil removing pretreating process
CN100579917C (en) Three-phase cyclone separator and cleaning treatment system for oil-containing water
CN205095472U (en) Subside and remove oil tank and extraction water processing system
CN104944619B (en) Electric Desalting Wastewater deoiling method in heavy crude process
CN102642884B (en) Oil-contained sewage treatment method and eddy energy fast-cyclone separating system of special equipment for method
CN102949866B (en) Oil removal method for petrochemical emulsified process water
CN105293734B (en) The oil removal pool device of filtration type adjustable oil water mixture separation
CN107522310A (en) Not agent-feeding treatment oil-polluted water re-injection technique
CN103787527B (en) A kind of oil-contaminated water air-float suspended layer filtration unit
CN209411951U (en) A kind of pretreatment system of semi-coke wastewater
CN102226100B (en) Method and apparatus for high-efficient crude oil desalination / dehydration
CN109279710A (en) A kind of pretreatment system and method for semi-coke wastewater
CN105174558A (en) Pretreatment method for removing oil by gas-making wastewater
CN202193677U (en) High-efficiency sedimentation device used for mines
CN203820565U (en) Oily sewage air floatation suspension layer filtering device
CN202766383U (en) Air-floatation oil removing sand setting device
CN205627211U (en) Automatic whirl coalescence water oil separating collection device
CA2917959C (en) Settling oil removal tank, system and method for produced water treatment
CN105199770B (en) A kind of method and apparatus of portable combination oil-sand washing
CN202193678U (en) Pre-oil removal-type high-efficiency sedimentation device used for mines
CN106241952A (en) A kind of oil-water separation tower and oil-water separation method
CN208394822U (en) A kind of assembled set air flotation processing device
CN110510798A (en) A method of with microbubble advanced treating ternary composite flooding water extraction
CN106830442A (en) Oil-containing sewage treatment system and method
CN208829325U (en) A kind of oil-containing water treatment facilities

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: A pretreatment system and method for orchid charcoal wastewater

Effective date of registration: 20220727

Granted publication date: 20210914

Pledgee: Xi'an Caijin Financing Guarantee Co.,Ltd.

Pledgor: XI'AN HENGXU TECHNOLOGY CO.,LTD.

Registration number: Y2022610000440