CN206521377U - A kind of oily sludge industrially scalable pyrolysis treatment systems - Google Patents
A kind of oily sludge industrially scalable pyrolysis treatment systems Download PDFInfo
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- CN206521377U CN206521377U CN201720212369.8U CN201720212369U CN206521377U CN 206521377 U CN206521377 U CN 206521377U CN 201720212369 U CN201720212369 U CN 201720212369U CN 206521377 U CN206521377 U CN 206521377U
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- pyrolysis
- oily sludge
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- desiccation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
Abstract
The utility model belongs to petroleum industry offal treatment field; it is related to a kind of oily sludge scale pyrolysis treatment systems; including charging Pre-sorting unit; for carrying out postsearch screening and separation of solid and liquid to oily sludge; desiccation pyrolysis unit; for carrying out desiccation and pyrolytic reaction to oily sludge; dedusting condensing unit; for carrying out dedusting and condensation to the pyrolysis gas mixture produced by desiccation pyrolysis unit; effluent processing unit, effluent processing unit receives the isolate of other units and handled respectively.Minimizing, stabilisation, innoxious, recycling finally can be realized to the solids such as oily sludge or solid-liquid mixing class offal treatment.
Description
Technical field
The utility model belongs to petroleum industry offal treatment field, is related to a kind of disposal of oily sludge system, especially relates to
And a kind of oily sludge scale pyrolysis treatment systems.
Background technology
Oily sludge is a kind of consolidating rich in mineral oil produced by oil exploration, exploitation, accumulating and refining process
Liquid mixing class discarded object (particularly HW08 classes abandoned mine oil), in general, its outward appearance of oily sludge is thick in black, by Shui Bao
Oil, Water-In-Oil and suspension solid impurity it is fully emulsified each other, a kind of very stable suspension emulsion system is formed, during storage
Between it is longer, intractability is bigger.Oily sludge belongs to highly dangerous pollutant, and many countries are classified as highly dangerous pollutant
With priority acccess control dangerous pollutant.
At present, process for treating oil-containing sludge has：Solvent extraction, heat chemistry washing method, burning method, bioanalysis, adjustment and
Comprehensive utilization etc., wherein burning method are organic solid waste treatment technologies more common at present, thorough with processing, not by size limit
Etc. feature, but burning method due to that can produce the pernicious gases such as bioxin in combustion, the tail gas pollution atmospheric environment of discharge,
Processing cost is high can not to reclaim oil plant again.In recent years, pyrolysis is used as the substitute technology of burning method and increasingly closed by each side
Note, oily sludge pyrolysis is the thermal instability for utilizing organic matter in sludge, it is heated under the conditions of negative pressure oxygen barrier, organic matter
It is cleaved according to its carbon ratio, forms value higher gas phase (pyrolysis gas) and solid phase (solid residue).It is pyrolyzed main frame
It is the core technology of oily sludge pyrolytic process, but pyrolysis host technology has also immature, the lime-ash hydrocarbon-containifirst after processing
Index does not reach national standard requirement, pyrolysis processing oily sludge process system also imperfection, the problem of cost of disposal is high.
Pyrolysis plant mainly has rotary kiln pyrolysis oven, flight conveyor formula pyrolysis oven and horizontal spiral propelling cracking furnace dress
Put three major types.Rotary kiln incinerator is more due to rotatable parts, repairs slightly many, and the technical requirements to mechanical aspects are high, the thermal efficiency
Relatively low, technical conditions are higher than dust concentration height in pyrogenation incinerator, flue gas, with the original in thermal NO x, especially oily sludge
Oil, which can not be recycled, can not meet extensive treating capacity.Flight conveyor formula pyrolysis furnace exist carrier bar it is descending when greasy filth residue
Come off, barrel easy coking in bottom can make body of heater hot-spot, and flight conveyor formula pyrolysis furnace internal activity portion at coking
Part is more, requires higher to processing and manufacturing, equipment often goes wrong.Horizontal spiral propelling cracking furnace package unit is simple in construction,
Friction of the spiral between inwall in itself can strike off the coke on wall, solve coking problem, but it is long to there is pyrolytic reaction chamber
Degree is short, it is impossible to ensure the rate of heat addition of heating furnace, there is that the stop stroke due to oily sludge in stove is short to directly affect processing
The overall size of greasy filth and the problem of harmless treatment index can not be reached.
The content of the invention
The purpose of this utility model is to provide a kind of technical deficiency that can overcome existing process change system that there is provided one
Kind of heavy industrialization processing oily sludge system and method, treatment effect be substantially better than national standard (《Agricultural pollutant catabolic gene
Standard》GB4284-84), minimizing, stably finally can be realized to the solids such as oily sludge or solid-liquid mixing class offal treatment
Change, innoxious, recycling.
A kind of continuous pyrolysis handles oily sludge system, including,
Pre-sorting unit is fed, for carrying out postsearch screening and separation of solid and liquid to oily sludge；
Desiccation pyrolysis unit, for carrying out desiccation and pyrolytic reaction to oily sludge；
Dedusting condensing unit, for carrying out dedusting and condensation to the pyrolysis gas mixture produced by desiccation pyrolysis unit；
Effluent processing unit, effluent processing unit receives the isolate of other units and handled respectively.
The charging Pre-sorting unit includes loading screw conveyor, bobbing machine, centrifuge, slush pump, heating boiler, oil
Water store tank, chemicals feeder and mud-collecting slot composition.
The desiccation pyrolysis unit includes desiccation machine, conveying worm, pyrolysis machine inlet, pyrolysis machine, process chamber, rotating shaft
Formula spiral apparatus for feeding, discharging opening, upper burner, upper combustion chamber, lower burner, lower combustion chamber, blast pipe, pyrolysis machine is using sleeping
Formula spiral turns round Promoting Form, and pyrolysis machine is provided with six grades of process chambers, and process chamber is in tube structure, horizontal laid parallel, six grades
Process chamber section is distributed into planar square diagonal, and every grade of process chamber is equipped with blast pipe, and vertical process chamber cylinder, per three-level
Process chamber sets a combustion chamber, and point upper combustion chamber, lower combustion chamber, each combustion chamber are furnished with gas burner, point upper burner, lower combustion
Burner, every grade of process chamber body centre is rotary shaft spiral apparatus for feeding, and every grade of process chamber has charging aperture and discharging opening, each
Discharging opening of the rotary shaft spiral apparatus for feeding along axle reverse propulsion oily sludge to next stage process chamber in level process chamber, until
Oily sludge is pushed into the discharging opening of most next stage.
The dedusting condensing unit, including cyclone dust collectors, wet dust collector, condenser, vavuum pump, refrigerating plant and
Housing.
The effluent processing unit, including oil storage tank, exhaust treatment system, sewage disposal system, oil water separator and
Ash bucket.
A kind of continuous pyrolysis handles oily sludge method, comprises the following steps：
Pre-sorting step is fed, postsearch screening and separation of solid and liquid are carried out to oily sludge；
Desiccation pyrolysis step, desiccation and pyrolytic reaction are carried out to oily sludge；
Dedusting condensing steps, dedusting and condensation are carried out to the pyrolysis gas mixture produced by desiccation pyrolysis unit；
Effluent process step, effluent processing unit receives the isolate of other units and handled respectively.
It is described charging Pre-sorting step be, using loading screw conveyor oily sludge deliver to greasy filth mixture tank carry out it is dilute
Release, heat, be then pumped into trommelling machine device and carry out coarse sizing, sub-elect solid sandstone of the diameter more than 2mm and enter broken
Broken crusher machine, diameter is less than the sludge sump that 2mm greasy filth enters below trommelling machine, then using loading screw conveyor conveying
Selected to vibratory sieve, diameter is more than the 2mm mud-collecting slot being directly entered before vibratory sieve, and diameter is less than under 2mm entrance vibratory sieve
Sump in, medicament, mixing are injected by chemicals feeder, then heating boiler is delivered to by slush pump, oil sludge enters heating
Boiler is heated to 80~90 DEG C, into centrifuge, and oil sludge enters centrifuge high-speed separation, and rotating speed reaches 6000 revs/min, in fact
The separation of existing 2~3 μm of solid oily sludges and liquid, solid oily sludge oil content is not more than 5%, and water content is not more than
80%, solid oily sludge is sent to next unit by conveying worm, and the liquid isolated is pumped into oil-water process system.
The desiccation pyrolysis step is that oily sludge enters desiccation machine, is heated to 180 DEG C~200 DEG C, oily sludge reclaimed water
Divide evaporation, boil-off gas inputs dedusting condensing unit by vavuum pump and handled, dried oil sludge water content decline 30%~
50%, dried oil sludge pushes to pyrolysis machine by conveying worm and is pyrolyzed, and greasy dirt is contained in pyrolysis machine running
Mud siccative enters from charging aperture and passed through in processing under 25~30 minutes section, 500 DEG C of temperature conditionss, crude oil contained by oil sludge
Component separates, gasified at different temperature, progressively volatilizees, and it is cold that the pyrolysis gas mixture of generation sends into next dedusting by vavuum pump
Solidifying unit, the dry slag charge after pyrolysis out sprays through spray equipment to be cooled down, and is shifted discharging opening onto by spiral apparatus for feeding and is entered effluent
Processing unit.
The dedusting condensing steps are, pyrolysis gas mixture produced by desiccation pyrolysis unit (mainly contain hydrocarbon gas,
Steam and scum silica frost dusting solid particle) by vavuum pump negative-pressure adsorption form, by the beginning of pyrolysis gas mixture suction cyclone dust collectors
Step heat of dissociation is vented one's spleen and scum silica frost dusting solid particle, and dust removal efficiency reaches 60~80%, and pyrolysis gas mixture enters back into water bath dust-removing
Device carries out secondary separation gas and scum silica frost dusting solid particle, and the scum silica frost dusting solid particle into wet dust collector is drenched point
Separate out and, dust removal efficiency reaches 99.5%, and separated admixture of gas out enters the water cooled cooling of condenser, forms gas and mixes
The precooling of compound oil water mixture forms liquid state, and liquid oil water mixture then enters next effluent processing unit water-oil separating
Device, remaining on-condensible gas then enters next effluent processing unit.
The effluent process step is that effluent processing unit is received respectively to be separated from charging Pre-sorting unit
Crude oil and sewage, the dry slag charge that desiccation pyrolysis unit is separated, scum silica frost dust granules that dedusting condensing unit is separated,
Oil water mixture and on-condensible gas, crude oil and the sewage difference that the crude oil and sewage of reception are separated through oil water separator are defeated
It is sent to crude dehydrating plant and sewage disposal system, crude oil is less than 1% by crude dehydrating plant moisture content, it is directly outer defeated or enter
Enter oil storage tank；The sewage isolated extremely enters cavitation air flotation system first by sewage-treatment plant water pump lifting, by adding
Medicine method removes suspension in sewage and grease, COD, by fibre-ball filtration, then by MBR system by sewage disposal to qualified
Standard, or reuse or outer row, the dry slag charge or dust granules of discharge suppress airborne dust using water logging wetting mode, can directly filled
Or as adsorbent or as construction material, the on-condensible gas of reception enters exhaust gas processing device, by the H in tail gas2S takes off
Remove, then according to CH in tail gas4Content carry out second-time burning, ensure that the tail gas for being discharged into air meets environmental protection before air is discharged into
It is required that.
The utility model has following significantly positive effect：
1. realize consecutive production, treating capacity is big, make a call to daily 300 can power, than 3 times of existing process disposal ability raising,
2. whole-course automation is detected and operated, simple to operate, easy to operate；
3. under negative pressure oxygen lean conditions, system No leakage, and improve safety coefficient；
4. using heated by natural gas method, tail gas can be with second-time burning, and exhaust emissions volume reduction amount height is without bioxin and furans
Output, discharges meet the requirement of environmental protection；
5. reclaim discarded crude oil；
7. being increased by 500 using spiral and rotary type pyrolysis oven than existing screw propulsion pyrolysis oven bringing-up section, fully ensure that and contained
The temperature of greasy dirt pyrolytic reaction needs, the rate of heat addition, reaction time, the lime-ash hydro carbons after processing are better than 15 times of national standard.
Brief description of the drawings
Fig. 1 is the process flow diagram of the utility model pyrolysis processing oily sludge.
Fig. 2 is charging Pre-sorting cellular construction schematic diagram.
Fig. 3 is desiccation pyrolysis unit structural representation.
Fig. 4 is the structural representation of pyrolysis machine.
Fig. 5 is the structural representation of dedusting condensing unit.
Embodiment
The utility model will be further described below in conjunction with the accompanying drawings, and certain following embodiments should not be construed as to this reality
With new limitation.
As shown in figure 1, the utility model is a kind of continuous pyrolysis processing oily sludge system and technique, including 1- chargings are pre-
Separation unit, 2- desiccation pyrolysis unit, 3- dedustings condensing unit and 4- effluent processing units；
As shown in Fig. 2 charging Pre-sorting unit 1 includes loading screw conveyor 11, bobbing machine 12, centrifuge 13, mud
Pump 14, heating boiler 15, profit holding vessel 16, chemicals feeder 17 and mud-collecting slot 18.Primary election is carried out first, using feeding helical feed
Oily sludge is delivered to greasy filth mixture tank and is diluted, heats by machine, is then pumped into trommelling machine device and is carried out coarse sizing, point
Select the solid sandstone more than 2mm and enter crusher in crushing, the sludge sump that the greasy filth less than 2mm enters below trommelling machine,
Loading screw conveyor 11 is used to transmit the oil sludge that oil-containing is less than 2mm again selected to bobbing machine 12, diameter is more than the straight of 2mm
The mud-collecting slot 18 tapped into before bobbing machine 12, diameter is less than in the sludge sump under 2mm entrance bobbing machine 12, then with slush pump 14
Heating boiler 15 is delivered to, oil sludge is heated to 80-90 DEG C into heating boiler 15, by the injection flocculation medicament of chemicals feeder 17,
Into centrifuge 13, the solid sludges and liquid isolated through centrifuge 13, solid sludges aqueous near less than 50%, oil-containing will
To less than 8%, solid sludges are sent to next desiccation pyrolysis unit 2, the liquid isolated is pumped into effluent processing unit 4
Oil-water process system in.
As shown in figure 3, desiccation pyrolysis unit 2 includes desiccation machine 21, conveying worm 22, pyrolysis machine inlet 23, pyrolysis
Machine 24, process chamber 25, rotary shaft spiral apparatus for feeding 25-1, discharging opening 26, upper burner 27-1, upper combustion chamber 28-1, lower combustion
Burner 27-2, lower combustion chamber 28-2, blast pipe 29.As shown in figure 4, pyrolysis machine 24 turns round Promoting Form, heat using horizontal spiral
Solution machine 24 is provided with six grades of process chambers 25, and process chamber is in tube structure, horizontal laid parallel, and six grades of process chamber sections are into plane side
Shape diagonal is distributed, and every grade of process chamber 25 is equipped with blast pipe 29, and the vertical cylinder of process chamber 25, and a combustion is set per tertiary treatment room
Room is burnt, point upper combustion chamber 28-1, lower combustion chamber 28-2 are furnished with gas burner per combustion chamber, point upper burner 27-1, lower burning
Device 27-2,；Every grade of body centre of process chamber 25 is rotary shaft spiral apparatus for feeding 25-1, every grade of process chamber 25 have charging aperture and
Discharging opening 26, per the rotary shaft spiral apparatus for feeding 25-1 in one-level process chamber 25 along axle reverse propulsion oily sludge to next stage
The discharging opening 26 of process chamber 25, until oily sludge to be pushed into the discharging opening 26 of most next stage.So per one-level process chamber oil-containing
The greasy filth of sludge and next stage process chamber is connected propulsion in 180 ° of revolutions, realizes the continuous 180 ° of commutations of material, circulates from top to bottom
Revolution；Five process chambers are so added, process chamber length is extended, that is, extend the pyrolytic reaction time of oily sludge；Heat
Solution machine has fltting speed uniform, and moment of torsion distribution is reasonable, and rotary shaft spiral apparatus for feeding promotes greasy filth speed adjustable in process chamber,
The temperature, the rate of heat addition, reaction time of oily sludge pyrolytic reaction needs have been fully ensured that, has been truly realized real to oily sludge
Existing minimizing, stabilisation, innoxious, recycling target, actual production process, which reaches to do after processing dehydration daily, contains greasy dirt
More than 100 tons abilities of mud.
As shown in figure 5, dedusting condensing unit 3 is included by cyclone dust collectors 31, water dust scrubber 32, condenser 33, refrigeration
Machine 34 and vavuum pump 35, are adsorbed as the pyrolysis gas mixture produced by upper desiccation pyrolysis unit 3 by the tiny structure of vavuum pump 35
Form, the suction initial gross separation pyrolysis gas of cyclone dust collectors 31 and scum silica frost dusting solid particle, enter back into water dust scrubber 32 2
Secondary separation gas and scum silica frost dusting solid particle, are separated into deduster particulate matter therein；Pyrolysis gas enters cold
Condenser 33 is condensed, and the condensed water in condenser 33 is provided by refrigeration machine 34, the liquid profit from condenser 33 out
Mixture, then into effluent processing unit 4.
Effluent processing unit is by oil storage tank, exhaust treatment system, sewage disposal system, oil water separator and ash bucket group
Into, receive respectively from the crude oil separated of charging Pre-sorting unit 1 and sewage, desiccation pyrolysis unit 2 separate it is dry
Dust granules and oil water mixture and on-condensible gas that slag charge, dedusting condensing unit 3 are separated；The crude oil and sewage of reception
The crude oil and sewage separated through oil and gas and water from gas are respectively delivered to crude dehydrating plant and sewage disposal system.Crude oil is passed through
Crude dehydrating plant moisture content is crossed less than 1%, directly outer defeated or storage；Sewage is handled to after qualified by sewage-treatment plant and returned
With or discharge.The dry slag charge or dust granules of discharge, are soaked using water logging.The on-condensible gas of reception enters exhaust gas processing device,
By H therein2S is removed, then according to CH in gas4Content carry out second-time burning.
It should be noted that it will be understood by those within the art that, can be to the technical solution of the utility model
Modify or equivalent substitution, without departing from the objective and scope of technical solutions of the utility model, it all should cover in this practicality
Among new right.
Claims (5)
1. a kind of continuous pyrolysis handles oily sludge system, it is characterised in that including,
Pre-sorting unit is fed, for carrying out postsearch screening and separation of solid and liquid to oily sludge；
Desiccation pyrolysis unit, for carrying out desiccation and pyrolytic reaction to oily sludge；
Dedusting condensing unit, for carrying out dedusting and condensation to the pyrolysis gas mixture produced by desiccation pyrolysis unit；
Effluent processing unit, effluent processing unit receives the isolate of other units and handled respectively.
2. continuous pyrolysis as claimed in claim 1 handles oily sludge system, it is characterised in that the charging Pre-sorting unit
Including loading screw conveyor, bobbing machine, centrifuge, slush pump, heating boiler, profit holding vessel, chemicals feeder and mud-collecting slot group
Into.
3. continuous pyrolysis as claimed in claim 1 handles oily sludge system, it is characterised in that the desiccation pyrolysis unit bag
Include desiccation machine, conveying worm, pyrolysis machine inlet, pyrolysis machine, process chamber, rotary shaft spiral apparatus for feeding, discharging opening, upper combustion
Burner, upper combustion chamber, lower burner, lower combustion chamber, blast pipe, pyrolysis machine turn round Promoting Form, pyrolysis machine using horizontal spiral
Provided with six grades of process chambers, process chamber is in tube structure, horizontal laid parallel, and six grades of process chamber sections are into planar square diagonal
Distribution, every grade of process chamber is equipped with blast pipe, and vertical process chamber cylinder, and a combustion chamber is set per tertiary treatment room, divides upper burn
Room, lower combustion chamber, each combustion chamber are furnished with gas burner, point upper burner, lower burner, and every grade of process chamber body centre is
Rotary shaft spiral apparatus for feeding, every grade of process chamber has charging aperture and discharging opening, is given per the rotary shaft spiral in one-level process chamber
Enter discharging opening of the device along axle reverse propulsion oily sludge to next stage process chamber, until oily sludge is pushed into most next stage
Discharging opening.
4. continuous pyrolysis as claimed in claim 1 handles oily sludge system, it is characterised in that the dedusting condensing unit,
Including cyclone dust collectors, wet dust collector, condenser, vavuum pump, refrigerating plant and housing.
5. continuous pyrolysis as claimed in claim 1 handles oily sludge system, it is characterised in that the effluent processing is single
Member, including oil storage tank, exhaust treatment system, sewage disposal system, oil water separator and ash bucket.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720212369.8U CN206521377U (en) | 2017-03-07 | 2017-03-07 | A kind of oily sludge industrially scalable pyrolysis treatment systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720212369.8U CN206521377U (en) | 2017-03-07 | 2017-03-07 | A kind of oily sludge industrially scalable pyrolysis treatment systems |
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| CN206521377U true CN206521377U (en) | 2017-09-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111039527A (en) * | 2019-11-27 | 2020-04-21 | 商丘中清环保科技有限公司 | Continuous oil sludge cracking device and method |
| CN112658020A (en) * | 2021-01-26 | 2021-04-16 | 新疆中金科瑞新能源发展股份有限公司 | Hydraulic transmission, microbubble separation and pyrolysis drying treatment process for drilling waste |
-
2017
- 2017-03-07 CN CN201720212369.8U patent/CN206521377U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111039527A (en) * | 2019-11-27 | 2020-04-21 | 商丘中清环保科技有限公司 | Continuous oil sludge cracking device and method |
| CN112658020A (en) * | 2021-01-26 | 2021-04-16 | 新疆中金科瑞新能源发展股份有限公司 | Hydraulic transmission, microbubble separation and pyrolysis drying treatment process for drilling waste |
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