CN207498226U - A kind of road tank car ejected wash water energy recycling and processing equipment - Google Patents

Abstract

The utility model is related to a kind of road tank car ejected wash water energy recycling and processing equipments, it includes：Anaerobic reation pool, oil separator, coagulating basin, aerobic reaction tank, sedimentation basin, Fenton reaction tanks, reuse sink, cleaning device and biogas air bag, the anaerobic reation pool are made of the interlayer outside anaerobic reaction bucket and anaerobic reaction bucket.The utility model effectively solves or the fuel problem needed for supplemented with cleaning station heating boiler, the waste heat of ejected wash water is taken full advantage of again, oil truck cleaning station energy consumption, material consumption are reduced to the greatest extent, saves more than 30% operating cost, realize cycling utilization of wastewater target and " zero-emission " target.

Description

A kind of road tank car ejected wash water energy recycling and processing equipment

Technical field

The utility model is related to a kind of road tank car ejected wash water energy recycling and processing equipments, belong to Industrial Wastewater Treatment Technical field is realized that road tank car cleaning station waste water production capacity is energy saving, is recycled and " zero-emission " target.

Background technology

Road tank car is the important tool contained with transporting oil, extensively should be had in the major petrochemical refining base in China With since the fast development road tank car quantity and capacity of highway construction are also increasing and are expanding year by year.One large-scale petrochemical It is 6000 or more that base, which averagely possesses tank car quantity, and cleaning 10 times every year of average each car, each 50 tons of water consumption, whole year will disappear Consume 3,000,000 tons of water.About 3 yuan/ton of industrial water, is recycled after processing, and conserve water 9,000,000 yuan/year, has very big Economic benefit.Secondly, the raising recently as whole society's environmental consciousness and the upgrading to environmental protection standard requirement, items pollution are controlled Reason measure dynamics is increasing, and the pollution problem of oil truck causes the extensive concern of environmental worker.Oil truck the material that changes the outfit, Generated first in periodic cleaning and maintenance process a large amount of sewage, particularly tank car fill oil types difference cause sewage into Point complexity, sewage oil content often more than 500mg/L, while may containing the toxicity such as sulfide, benzene, volatile phenol and lead tetraethide compared with Big pollutant causes the serious pollution of surrounding enviroment.

Processing for oily waste water, frequently with " oil removal-coagulation/air supporting-biochemistry " old three sets for the treatment of process.But due to oil Tank car with water is high-temperature water or high-temperature steam when cleaning, and leaving water temperature is still very high after cleaning, and 55 DEG C of average out to, ejected wash water is excessively high Temperature be unfavorable for biochemical treatment.Secondly, after HIGH TEMPERATURE PURGE water is directly discharged into oil separator, oil removal effect is reduced, deepens the breast of oil Change degree, so as to increase subsequent biochemical processing organic loading.So usually oil truck cleaning station can be set before oil separator it is slow Pond is rushed, to reduce temperature, but this can cause a large amount of waste heat to be wasted, and in energy saving unfavorable, while can also generate atmosphere pollution.Cause This, oil truck ejected wash water water quality has particularity so that conventional coagulation and biochemical process treatment effeciency is low, it is difficult to meet it and reach Mark the requirement of discharge.Again, cleaning tank car water requirement is big, laggard to tank car cleaning water process according to current environmentally friendly development situation Row reuse is the developing direction of this wastewater processing technology, for oil truck cleaning station generate all kinds of sewage and use water feature, Patent carries out special designing to anaerobic device and processing system, efficiently uses oil truck ejected wash water waste heat, greatly reduces waste water The emulsification degree of middle oil improves oil removal efficiency about more than 15%, and thus significantly reduces subsequent biochemical load, raising processing Effect supplies boiler energy in particular with anaerobic reactor biogas, reduces oil truck cleaning station energy consumption, object to the greatest extent Consumption saves more than 30% operating cost, is discharged after processing and reaches railway quality of reused water standard（TB 3007-2000）, finally Realize the target of oil truck cleaning station circular economy and " zero-emission ".

Utility model content

The utility model is directed to oil truck cleaning station water and ejected wash water feature, provides a kind of road tank car ejected wash water energy Source recycling and processing equipment, it can enable the waste heat of ejected wash water utilize, and effectively improve oil removal effect and Biochemical Treatment, section About floor space, and biogas heat supply is utilized, operating cost more than 30% is reduced, finally realizes circular economy and " zero-emission Put " target.

To achieve the above object, the utility model provides following technical solution：A kind of road tank car ejected wash water energy Recycling and processing equipment, it includes：Anaerobic reation pool, oil separator, coagulating basin, aerobic reaction tank, sedimentation basin, Fenton reaction tanks, Reuse sink, cleaning device and biogas air bag, the anaerobic reation pool is by the interlayer group outside anaerobic reaction bucket and anaerobic reaction bucket Into, the cleaning water outs after the flushing oil truck of the cleaning device connect the cleaning water inlet of the interlayer bottom through suction pump, The cleaning water outs on the interlayer top connect water inlet in the middle part of the oil separator through the first draining pump, and the oil separator middle and lower part goes out The second draining pump of the mouth of a river connects water inlet in the middle part of the coagulating basin, and coagulating basin top water outlet connects described through third draining pump Anaerobic reaction bottom of the barrel water inlet, Domestic sewage collecting pond water outlet connect anaerobic reaction bottom of the barrel through the 9th draining pump and intake Mouthful, the septic tank effluent mouth connects the anaerobic reaction bottom of the barrel feed inlet, the natural pond of the anaerobic reaction bucket through the first sludge pump Gas exports the biogas import that the biogas air bag is connect through the second control valve, and the anaerobic reaction bucket top water outlet is through the 4th draining Pump connects the aerobic reaction tank water inlet, and the aerobic reaction tank water outlet connects the sedimentation basin water inlet through the 5th draining pump, The sedimentation basin water outlet connects the Fenton reaction tanks water inlet, the Fenton reaction tanks water outlet warp through the 6th draining pump 7th draining pump connects the reuse sink water inlet.

As the further scheme of the utility model, the bottom plate of the interlayer on the anaerobic reation pool tilts 20 ° to side.

As the further scheme of the utility model, the anaerobic reation pool is supported by supporting rack, the bottom plate upper surface The mud discharging mouth of low side connects the anaerobic reaction bottom of the barrel feed inlet through sludge pump.

Chemical feed pipe, the first pH value detector and the are equipped with as the further scheme of the utility model, in the coagulating basin One blender；Setting plus H in the Fenton reaction tanks₂O₂Pipe plus Fe²⁺Pipe, first adjust pH value pipe, the second pH value detector and Second blender；The reuse sink adjusts pH value pipe, third pH value detector and third blender equipped with second.

As the further scheme of the utility model, the anaerobic reaction bucket is is thoroughly mixed formula anaerobic reactor （CSTR）, anaerobic filter（AF）, Anaerobic Sequencing Bath Reactor（ASBR）, anaerobic baffle reactor（ABR）, upflow anaerobic sludge Bed（UASB）, it is anaerobic expanded granular sludge bed（EGSB）Or interior cycle（IC）Reactor；The oil separator for parallel flow intercepter, Sloping plate oil separation tank；The aerobic reaction tank is aerobic activated sludge process reactor；The sedimentation basin is rectangular sedimentation tank, spoke stream Formula sedimentation basin or inclined-plate clarifying basin.

Compared with prior art, the beneficial effects of the utility model are：

One：Road tank car ejected wash water has the characteristics that temperature is high, and the utility model is special to anaerobic reactor part Design had not only effectively recycled the after-heat of oil truck ejected wash water, but also was conducive to that anaerobic reactor temperature is maintained to stablize, particularly Keep 10-15 ° of anaerobism temperature or more extremely important to the methane production that anaerobic reactor is stablized is kept to have under winter low temperature condition Meaning.Secondly, the utilization of oil truck ejected wash water waste heat substantially reduces emulsification degree oily in waste water, improves follow-up oil removal Effect and biochemical effects reduce Fenton dosings.Simultaneously as UTILIZATION OF VESIDUAL HEAT IN sets ejected wash water water storage before eliminating oil separator The process of slot has the small advantage low with construction cost of construction area, the methane particularly generated after anaerobism as boiler oil, Processing cost, integrated operation cost reduction about more than 30% are greatly reduced, therefore realizes the theory of recycling industries and clean production.

Two：At present highway in China oil truck cleaning station not yet to sewage carry out Treatment for Reuse technology and process equipment with Method, existing sewage disposal use " oil removal-coagulation/air supporting-biochemistry " old three sets for the treatment of process.The utility model is on this basis New technological process and equipment are developed, water outlet after processing is made to reach railway quality of reused water standard（TB 3007-2000）, And COD ＜ 50mg/L, oily ＜ 1mg/L, ammonia nitrogen ＜ 5mg/L, turbidity ＜ 3NUT, colorless and odorless realize waste water zero emission mesh Mark.

Description of the drawings

Fig. 1 is the structure diagram of the utility model.

Fig. 2 is the structure diagram of the anaerobic reation pool of the utility model.

1- suction pumps in the figure, 2- anaerobic reation pools, 3- interlayers, 4- anaerobic reaction buckets, 5- mud discharging mouths, 6- supporting racks, 7- Bottom plate, 8- biogas air bags, 9- sludge pumps, the first draining pumps of 10-, 11- oil separators, the second draining pumps of 12-, 13- coagulating basins, 14- Chemical feed pipe, 15- the first pH value detectors, the first blenders of 16-, 17- third draining pumps, the second control valves of 18-, the 4th rows of 19- Water pump, 20- aerobic reaction tanks, the 5th draining pumps of 21-, 22- sedimentation basins, the 6th draining pumps of 23-, 24- Fenton reaction tanks, 25- Add H₂O₂Pipe, 26- add Fe²⁺Pipe, 27- first adjust pH value pipe, 28- the second pH value detectors, the second blenders of 29-, the 7th rows of 30- Water pump, 31- reuse sinks, 32- second adjust pH value pipe, 33- third pH value detectors, 34- third blenders, the 8th drainings of 35- Pump, 36- heating boilers, the 4th control valves of 37-, 38- third control valves, the first control valves of 39-, 40- cleaning devices.

Specific embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work All other embodiments obtained shall fall within the protection scope of the present invention.

- 2 are please referred to Fig.1, please refers to Fig.1-2, in the utility model embodiment, a kind of road tank car ejected wash water energy Recycling and processing equipment, it includes：Anaerobic reation pool 2, oil separator 11, coagulating basin 13, aerobic reaction tank 20, sedimentation basin 22, Fenton reaction tanks 24, reuse sink 31, cleaning device 40 and biogas air bag 8, the quantity of the anaerobic reation pool 2 can be according to every Day, cleaning tank car quantity was configured with average water yield, and to ensure the sufficient anaerobism time, 2 total measurement (volume) of anaerobic reation pool is more anti-than aerobic Answer 20 volume of pond 3 times big, anaerobic reation pool 2 is circle, is divided into inside and outside two layers, the anaerobic reation pool 2 is by 4 He of anaerobic reaction bucket Interlayer 3 outside anaerobic reaction bucket forms, and the cleaning water outs after the flushing oil truck of the cleaning device 40 meet institute through suction pump 1 The cleaning water inlet of 3 bottom of interlayer is stated, the cleaning water outs on 3 top of interlayer connect the oil separator 11 through the first draining pump 10 Middle part water inlet, the 11 middle and lower part water outlet of oil separator meet the 13 middle part water inlet of coagulating basin, institute through the second draining pump 12 It states 13 top water outlet of coagulating basin and connects the 4 bottom water inlet of anaerobic reaction bucket, the anaerobic reaction bucket 4 through third draining pump 17 Methane outlet the biogas import of the biogas air bag 8, the 4 top water outlet warp of anaerobic reaction bucket are connect through the second control valve 18 4th draining pump 19 connects 20 water inlet of aerobic reaction tank, and 20 water outlet of aerobic reaction tank meets institute through the 5th draining pump 21 22 water inlet of sedimentation basin is stated, 22 water outlet of sedimentation basin connects 24 water inlet of Fenton reaction tanks through the 6th draining pump 23, 24 water outlet of Fenton reaction tanks connects 31 water inlet of reuse sink through the 7th draining pump 30.Fenton reaction tanks 24 are matched The quantity put can as needed depending on, it is used in parallel, can temporarily be used as aqua storage tank after completion of the reaction, reduce floor space.

As shown in Figure 1,31 water outlet of reuse sink connects heating boiler 36, the heating boiler through the 8th draining pump 35 36 hot water outlets connect 40 hot water inlet of cleaning device through the first 39 valves of control, and 8 methane outlet of biogas air bag is through third Control valve 38, the 4th control valve 37 connect the 36 biogas import of heating boiler, in this way, fuel needed for heating boiler 36 is anti-by anaerobism Answer the biogas supply that pond 2 generates.

As shown in Figure 1, the bottom plate 7 of the interlayer 3 on the anaerobic reation pool 2 tilts 20 ° to side, so as to by flushing oil tank The collection and discharge of the sediments such as greasy filth are generated during vehicle；The anaerobic reation pool 2 is supported by supporting rack 6, and supporting rack 6, which is arranged on, to be detested 2 bottom margin of oxygen reaction tank is to protect interlayer；It is anti-that the mud discharging mouth 5 of the 7 upper surface low side of bottom plate through sludge pump 9 connects the anaerobism 4 bottom feed inlet of bucket is answered, mud discharging mouth 5 is connected by sludge pump 9 with 4 feed inlet of anaerobic reaction bucket, and it is anti-that such greasy filth enters anaerobism It answers and is decomposed in bucket 4, greatly reduced by the quantity of solid waste for the vehicle generation that cleans the storage.

As shown in Figure 1, chemical feed pipe 14, the first pH value detector 15 and the first blender 16 are equipped in the coagulating basin 13； Setting plus H in the Fenton reaction tanks 24₂O₂Pipe 25 plus Fe²⁺Pipe 26, first adjusts pH value pipe 27, the second pH value detector 28 And second blender 29；The reuse sink 31 adjusts pH value pipe 32, third pH value detector 33 and third blender equipped with second 34。

The anaerobic reaction bucket 4 is is thoroughly mixed formula anaerobic reactor, anaerobic filter, Anaerobic Sequencing Bath Reactor, anaerobism Baffle reactor, up-flow anaerobic sludge blanket, anaerobic expanded granular sludge bed or inner circulation reactor；The oil separator 11 is flat Streaming oil separator, sloping plate oil separation tank；The aerobic reaction tank 20 is aerobic activated sludge process reactor；The sedimentation basin 22 is flat Flow settling pond, radical sedimentation basin or inclined-plate clarifying basin.

Application examples one：

Using Maoming City oil truck cleaning station as objective for implementation, oil truck ejected wash water is in yellow or yellow-gray, temperature 58 ° of degree, turbidity 611NUT, there is pungent oily taste, 583.12 4991.5 mg/L of mg/L, COD of oil-containing, ammonia nitrogen 24.19 Mg/L, 114 mg/L of ss suspended solid, pH value 8.36.Cleaning station sanitary sewage pH value 7.39,181.6 mg/L of COD, ammonia nitrogen 23.5 mg/L, ss suspended solid 62mg/L.Septic tank wastewater pH value 7.96,32065.7 mg/L of COD, 6937.8 mg/ of ammonia nitrogen L, VS/TS is 70.4.

Ejected wash water after flushing oil truck in cleaning device 40 is directly squeezed into the interlayer 3 of anaerobic reation pool 2 by suction pump 1 Bottom, in the application example 4 use of anaerobic reaction bucket be thoroughly mixed formula anaerobic reactor.Ejected wash water and anaerobic reaction in interlayer 3 Bucket fully carries out heat exchange, and 4 temperature of anaerobic reaction bucket is maintained to maintain 4 temperature of anaerobic reaction bucket at 22 ° or more, winter in this way 10-15 ° or more, oil separator 11 is discharged into through the first draining pump after 8 hours residence times by 3 top discharge outlet of interlayer.This mode Not only flushing water heat had been recycled, but also has reduced emulsification degree oily in flushing water, oil separator oil removal rate is made to improve more than 15%, is had Conducive to subsequent biochemical processing.

The water outlet of oil separator 11 is discharged by the second draining pump 12 in coagulating basin 13 by middle and lower part water outlet, in the application example Oil separator 11 is parallel flow intercepter, and 483.42 2963 mg/L of mg/L, COD of oil-containing is discharged after oil removal.It is added in coagulating basin 13 Coagulant for polyaluminium sulfate, dosage 0.5g/L is first configured to saturated solution before adding in, is added in by chemical feed pipe 14, logical It crosses the first blender 16 to be stirred, stirring stops standing 1 hour after twenty minutes.

The water outlet of 13 top of coagulating basin enters anaerobic reaction bucket 4 through third draining pump 17, and 4 volumetric ratio of anaerobic reaction bucket is aerobic anti- Answer pool volume 3 times big.Sludge concentration is maintained at more than 6000mg/L, and sludge is 1 with the cleaning water volume ratio after coagulating treatment: 2.5。

The sanitary sewage and septic tank wastewater that cleaning station generates all are squeezed into anaerobic reaction bucket 4, keep anaerobic reaction bucket Interior TS 10%.Hydraulic detention time is 3 days, and COD, oily removal rate are respectively 60%, 45%.Anaerobic gas generation rate is 0.47L/gVS, Methane content 72%, biogas supply heating boiler as the energy.

Anaerobic reaction bucket 4 is discharged enters aerobic reaction tank 20 through the 4th draining pump 19.Aerobic reaction tank 20 in the application example For aerobic activated sludge process reaction tank, sludge concentration is maintained at 3260mg/L, and the control of aeration phase dissolved oxygen is in 3.5mg/L, exposure After the gas time is 6h, COD, oily removal rate are respectively 86%, 65%.Aerobic reaction tank 20 is discharged to be entered through the 5th draining pump 21 Sedimentation basin 22, sedimentation basin 22 is rectangular sedimentation tank in the application example.Sedimentation basin 22 is discharged to be entered through the 6th draining pump 23 After Fenton reaction tanks 24, it is separately added into 30% H₂O₂、FeSO₄•7H₂O, the two molar ratio is 1:20, adjust pH with the sulfuric acid of 5M Value 3.0 stands 1.5h after stirring 1h, and the water outlet of Fenton reaction tanks 24 is discharged into reuse sink 31 by the 7th draining pump 30, Saturation NaOH solution is added in by the second tune pH value pipe 32, pH value 7.0 is adjusted, stirs and evenly mixs, be discharged COD 30.2mg/L, oil at this time 0.29 mg/L, 1.71 mg/L of ammonia nitrogen, turbidity ＜ 3NUT, water white transparency.The water outlet of reuse sink 31 enters in heating boiler 36, adds It is used after heat as ejected wash water.

Anaerobic processes are generated the energy of the methane as heating boiler by the utility model, by being set to the special of anaerobic device Meter takes full advantage of the waste heat of ejected wash water, eliminates the process that ejected wash water aqua storage tank is set before oil separator, finally carries out ejected wash water Reuse reduces oil truck cleaning station energy consumption, material consumption to the greatest extent, has the spy for saving construction area and reducining the construction costs Point, while more than 30% cost of cleaning is also reduced, therefore realize the theory of recycling industries and clean production.

Claims (8)

1. a kind of road tank car ejected wash water energy recycling and processing equipment, which is characterized in that it includes：Anaerobic reation pool, every Oil sump, coagulating basin, aerobic reaction tank, sedimentation basin, Fenton reaction tanks, reuse sink, cleaning device and biogas air bag, it is described to detest Oxygen reaction tank is made of the interlayer outside anaerobic reaction bucket and anaerobic reaction bucket, the cleaning rinsed after oil truck of the cleaning device Water out connects the cleaning water inlet of the interlayer bottom through suction pump, and the cleaning water outs on the interlayer top are through the first draining pump Water inlet in the middle part of the oil separator is connect, oil separator middle and lower part water outlet connects through the second draining pump and intakes in the middle part of the coagulating basin Mouthful, coagulating basin top water outlet connects the anaerobic reaction bottom of the barrel water inlet, the anaerobic reaction bucket through third draining pump Methane outlet the biogas import of the biogas air bag is connect through the second control valve, the anaerobic reaction bucket top water outlet is through the 4th Draining pump connects the aerobic reaction tank water inlet, and the aerobic reaction tank water outlet connects the sedimentation basin through the 5th draining pump and intakes Mouthful, the sedimentation basin water outlet connects the Fenton reaction tanks water inlet, the Fenton reaction tanks water outlet through the 6th draining pump Mouth connects the reuse sink water inlet through the 7th draining pump.

A kind of 2. road tank car ejected wash water energy recycling and processing equipment according to claim 1, which is characterized in that institute The bottom plate for stating the interlayer on anaerobic reation pool tilts 20 ° to side.

A kind of 3. road tank car ejected wash water energy recycling and processing equipment according to claim 2, which is characterized in that institute It states anaerobic reation pool to be supported by supporting rack, the mud discharging mouth of bottom plate upper surface low side connects the anaerobic reaction bucket bottom through sludge pump Portion's feed inlet.

A kind of 4. road tank car ejected wash water energy recycling and processing equipment according to claim 1, which is characterized in that institute It states and chemical feed pipe, the first pH value detector and the first blender is equipped in coagulating basin；Setting plus H in the Fenton reaction tanks₂O₂ Pipe plus Fe²⁺Pipe, first adjust pH value pipe, the second pH value detector and the second blender；The reuse sink adjusts pH value equipped with second Pipe, third pH value detector and third blender.

A kind of 5. road tank car ejected wash water energy recycling and processing equipment according to claim 1, which is characterized in that institute State anaerobic reaction bucket for be thoroughly mixed formula anaerobic reactor, anaerobic filter, Anaerobic Sequencing Bath Reactor, anaerobic baffle reactor, Up-flow anaerobic sludge blanket, anaerobic expanded granular sludge bed or inner circulation reactor.

A kind of 6. road tank car ejected wash water energy recycling and processing equipment according to claim 1, which is characterized in that institute Oil separator is stated as parallel flow intercepter or sloping plate oil separation tank.

A kind of 7. road tank car ejected wash water energy recycling and processing equipment according to claim 1, which is characterized in that institute Aerobic reaction tank is stated as aerobic activated sludge process reactor.

A kind of 8. road tank car ejected wash water energy recycling and processing equipment according to claim 1, which is characterized in that institute Sedimentation basin is stated as rectangular sedimentation tank, radical sedimentation basin or inclined-plate clarifying basin.