CN105363760B - A kind of oilfield downhole operation parcel greasy filth discards fender method for innocent treatment - Google Patents
A kind of oilfield downhole operation parcel greasy filth discards fender method for innocent treatment Download PDFInfo
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- CN105363760B CN105363760B CN201510830708.4A CN201510830708A CN105363760B CN 105363760 B CN105363760 B CN 105363760B CN 201510830708 A CN201510830708 A CN 201510830708A CN 105363760 B CN105363760 B CN 105363760B
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000000197 pyrolysis Methods 0.000 claims abstract description 64
- 239000007789 gas Substances 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 38
- 239000003921 oil Substances 0.000 claims abstract description 28
- 239000007791 liquid phase Substances 0.000 claims abstract description 24
- 239000000295 fuel oil Substances 0.000 claims abstract description 14
- 238000000746 purification Methods 0.000 claims abstract description 10
- 238000003795 desorption Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 230000033228 biological regulation Effects 0.000 claims abstract description 7
- 238000010079 rubber tapping Methods 0.000 claims abstract description 7
- 239000003517 fume Substances 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims abstract description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 28
- 239000003546 flue gas Substances 0.000 claims description 25
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 16
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 15
- 238000002485 combustion reaction Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 10
- 239000003345 natural gas Substances 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 8
- 238000004806 packaging method and process Methods 0.000 claims description 8
- 239000003500 flue dust Substances 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- 238000011084 recovery Methods 0.000 claims description 7
- 239000002250 absorbent Substances 0.000 claims description 5
- 230000002745 absorbent Effects 0.000 claims description 5
- 239000003610 charcoal Substances 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 5
- 238000006477 desulfuration reaction Methods 0.000 claims description 5
- 230000023556 desulfurization Effects 0.000 claims description 5
- 239000002912 waste gas Substances 0.000 claims description 5
- 238000004065 wastewater treatment Methods 0.000 claims description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 4
- 238000004939 coking Methods 0.000 claims description 4
- 239000012071 phase Substances 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 238000005336 cracking Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 239000004215 Carbon black (E152) Substances 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 238000009987 spinning Methods 0.000 claims description 2
- 239000004744 fabric Substances 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000009270 solid waste treatment Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000010992 reflux Methods 0.000 description 6
- 239000002910 solid waste Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000010802 sludge Substances 0.000 description 5
- 238000012856 packing Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000002283 diesel fuel Substances 0.000 description 3
- 239000003502 gasoline Substances 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000001925 catabolic effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000004035 construction material Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000004056 waste incineration Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- -1 S And part flue dust Chemical compound 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Gasification And Melting Of Waste (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Fender method for innocent treatment is discarded the present invention relates to a kind of oilfield downhole operation parcel greasy filth.Environmental requirement can not met and realize the problem of being wrapped with greasy filth antiseepage cloth solid waste treatment technology up to standard by mainly solving existing oil field.Comprise the following steps：（1）, material broken closed feeding system；（2）, material tiny structure Thermal desorption：Material is through step（1）In broken closed feeding system feeding tiny structure indirectly heat rotation pyrolysis oven, according to material properties, regulation and control rotation pyrolysis in-furnace temperature and pyrolysis time；（3）, gas-liquid separation and liquid phase reclaim；（4）, fixed gas purification and reuse；（5）, fume treatment and discharge；（6）, automatic high temperature slag-tapping system.Oilfield downhole operation parcel greasy filth discards fender method for innocent treatment, and fuel oil, combustible gas are reclaimed in can discarding fender from underground work parcel greasy filth, realizes that underground work discards fender and wraps up the harmless treatment of greasy filth.
Description
Technical field
The present invention relates to a kind of discarded fender method for innocent treatment in the resource and environment technical field of oil field, especially
A kind of underground work parcel greasy filth discards fender method for innocent treatment.
Background technology
Operation under oilfield producing well, in order to prevent the solid wastes such as the greasy filth, the mud that are produced in operation process from polluting operation
Surrounding enviroment, general that these solid wastes are collected and kept in using the interim native pond for being covered with antiseepage cloth, underground work is applied
Mud, greasy filth for being produced after the completion of work etc. can be handled with roping to built disposal of oily sludge station, but be wrapped with the anti-of greasy filth
Temporary stacking can only be carried out by oozing the fenders such as cloth, currently without 1 set of effective treatment technology.
The fender of greasy filth is wrapped with from the dangerous solid waste of angle category of environmental protection requirement, it is difficult to degrade, if processing is not
It is kind, it can be polluted to environment such as big gas and water, the soil on periphery, or even endanger the physical and mental health of the mankind.In January, 2015 new ring
The issuing and implementation of guarantor's method, stricter want is proposed to disposal, processing and environmental pollution prevention and control of hazardous solid waste etc.
Ask, the dynamics of punishment is also more severe.Because oil field currently without can meet environmental requirement and realize be wrapped with greasy filth antiseepage
The technology of the solid wastes such as cloth processing up to standard, causes many underground work tasks not implement, constrains the units such as drilling well, oil recovery
Manufacturing schedule, has severely impacted the production in oil field and the completion of production capacity index.
The content of the invention
The invention reside in overcome existing oil field present in background technology not meet environmental requirement and realize to be wrapped with oil
The problem of mud antiseepage cloth solid waste treatment technology up to standard, and a kind of oilfield downhole operation parcel greasy filth is provided to discard fender harmless
Change processing method.Oilfield downhole operation parcel greasy filth discards fender method for innocent treatment, can be wrapped up from underground work
Greasy filth, which is discarded, reclaims fuel oil, combustible gas in fender, realize that underground work discards fender and wraps up the innoxious place of greasy filth
Reason.
The present invention, which solves its problem, to be reached by following technical solution：Oilfield downhole operation parcel greasy filth is discarded anti-
Thing method for innocent treatment is protected, is comprised the following steps：
（1）, material broken closed feeding system：Material initially enters disintegrating machine, and material is broken into 5-10cm, through defeated
Machine is sent to be delivered to the hydraulic feed system of rotation pyrolysis oven；Directly it is connected in hydraulic feed system with rotation pyrolysis oven closed chamber
Connect；
（2）, material tiny structure Thermal desorption：Material is through step（1）Broken closed feeding system feeding tiny structure adds indirectly
In heat rotation pyrolysis oven, according to the property of material, regulation and control rotation pyrolysis in-furnace temperature and pyrolysis time；Rotate material in pyrolysis oven
In the case where vacuum is 0.02Mpa tiny structure environment, 200 DEG C are risen to by room temperature first in 2h, is stopped between 100 DEG C ~ 200 DEG C
1.5h is stayed, now there are a large amount of vapor to steam；Then 500 are risen to by 200 DEG C with average 35 DEG C/h ~ 55 DEG C/h heating rate
DEG C, add up heating-up time 5.5h ~ 8.5h, stopped wherein being stopped between 200 DEG C ~ 300 DEG C between 1h ~ 2h, 300 DEG C ~ 400 DEG C
2.5h ~ 3.5h, stops 1.0h ~ 5.0h between 400 DEG C ~ 500 DEG C, and this temperature control segment produces substantial amounts of cracking cut, it is condensed after
Reclaim；The last rate of temperature fall with average 50 DEG C/h ~ 60 DEG C/h is down to less than 400 DEG C by 500 DEG C；Residue after pyrolysis is through cold
But elevator is delivered to packaging system after delivering to cooling feed bin cooling；
（3）, gas-liquid separation and liquid phase reclaim：The steam that material is produced after Thermal desorption in rotation pyrolysis oven is first passed around point
Drum is separated for the first time, and the liquid phase separated through point drum is heavy oil, and gas phase further condenses recovery into condenser, is passed through
The liquid phase that condenser condensation is reclaimed enters oil water separator and carries out water-oil separating, and the fuel oil separated enters oil and reclaims storage
Tank, the oil-polluted water separated is delivered to re-injection underground after the processing of oily waste water treatment station；
（4）, fixed gas purification and reuse：The fixed gas produced after condensed device, removes by waste gas purification apparatus and does not coagulate
Sour gas and dust in gas, are lighted with natural gas through spark arrester together as fuel through burner, give rotation pyrolysis oven
Thermal source is provided；
（5）, fume treatment and discharge：Come from the flue gas of the burning generation of fixed gas and natural gas in combustion chamber, first
Acid gas in flue gas is removed by wet desulfurization dust-removing device, most the oxidation in flue gas is removed through absorbent charcoal adsorber afterwards
Carbon, nitrogen oxides and flue dust, the final qualified discharge of flue gas.
（6）, automatic high temperature slag-tapping system：Residue after pyrolysis delivers to cooling by conveyer of slagging tap through coolelevator
Packaging system is delivered to after feed bin, cooling.
It is of the invention to be had the advantages that compared with above-mentioned background technology：Oilfield downhole operation parcel greasy filth gives up
Fender method for innocent treatment is abandoned, using tiny structure indirectly heat revolving burner pyrolytic process, supporting gas-liquid separation and liquid phase are returned
It is receipts system, fixed gas purification and reclaiming system, automatic high temperature slag-tapping system, fume treatment and exhaust system and temperature control, voltage-controlled
Etc. robot control system(RCS), realize oilfield downhole operation and discard fender and wrap up the harmless treatment of greasy filth, thoroughly eliminate oil field and consolidate
The pollution of body discarded object.Using present invention process not only while ensuring that flue gas, residue reach national corresponding discharge standard it is real
The harmless treatment of existing solid waste, and fuel oil, combustible gas energy can also be reclaimed, produce certain economic benefit.
Brief description of the drawings：
Accompanying drawing 1 is the process flow diagram of the present invention.
Embodiment：
Below in conjunction with specific embodiment and accompanying drawing, the invention will be further described：
As shown in figure 1, oilfield downhole operation discards fender and parcel greasy filth method for innocent treatment contains following technique
Step：
1st, the broken closed feeding system of material：Material initially enters double-shaft crusher, in the effect of alloy steel cutter
Under, material is broken into 5-10cm, the hydraulic feed system of rotation pyrolysis oven is delivered to through full-automatic enclosed drag conveyor；Liquid
Pressure feed system is directly connected with rotation pyrolysis oven closed chamber, has prevented the situation of the bad sealing caused by charging aperture is excessive.
2nd, the tiny structure Thermal desorption of material：Material is through broken closed feeding system feeding tiny structure indirectly heat rotation pyrolysis
In stove, according to the property of material, regulation and control rotation pyrolysis in-furnace temperature and pyrolysis time；Material is in vacuum in rotation pyrolysis oven
Under 0.02Mpa tiny structure environment, 200 DEG C are risen to by room temperature first in 2h, 1.5h is stopped between 100 DEG C ~ 200 DEG C, this
When there are a large amount of vapor to steam；Then 500 DEG C are risen to by 200 DEG C with average 35 DEG C/h ~ 55 DEG C/h heating rate, adds up to rise
Warm time 5.5h ~ 8.5h, wherein stop 1h ~ 2h between 200 DEG C ~ 300 DEG C, stop between 300 DEG C ~ 400 DEG C 2.5h ~
3.5h, stops 1.0h ~ 5.0h between 400 DEG C ~ 500 DEG C, and this temperature control segment produces substantial amounts of cracking cut, it is condensed after reclaim；Most
Afterwards less than 400 DEG C are down to average 50 DEG C/h ~ 60 DEG C/h rate of temperature fall by 500 DEG C；Residue after pyrolysis is through coolelevator
Automatic packaging system is delivered to through conveyer after delivering to cooling feed bin cooling, packs and is transported outward after packing.
3rd, gas-liquid separation and liquid phase are reclaimed：The steam that material is produced in rotation pyrolysis oven after Thermal desorption（Including vapor
And pyrolysis cut）First pass around a point drum to be separated for the first time, the liquid phase separated through point drum is heavy oil, gas phase enters cold
Condenser further condenses recovery, and the liquid phase that condensed device condensation is reclaimed enters oil water separator and carries out water-oil separating, separates
Fuel oil（Wherein gasoline and diesel oil add up to proportion 40% ~ 70%）Storage tank is reclaimed into oil, that separates contains greasy dirt
Water（Oil content≤1000mg/L, suspended solids content≤200mg/L）Returned after being delivered to oily waste water treatment station processing nearby
Note underground.
4th, fixed gas purification and reuse：The fixed gas produced after condensed device, mainly with C1~C4Organic hydrocarbon, dust with
And based on sour gas, the sour gas and most of dust in fixed gas are removed by waste gas purification apparatus（Dust removing effects
It can reach more than 85%）, lighted through spark arrester with natural gas together as fuel through burner, thermal source provided to rotation pyrolysis oven.
5th, fume treatment and discharge：The flue gas produced in combustion chamber mostlys come from the burning of fixed gas and natural gas.Cigarette
Gas first passes around the SO in wet desulfurization dust-removing device removing flue gas2、H2The sour gas such as S, it is most de- through absorbent charcoal adsorber afterwards
Except the carbon monoxide in flue gas, nitrogen oxides and flue dust, it is ensured that the final qualified discharge of flue gas.
6th, automatic high temperature slag-tapping system：Residue after pyrolysis is sent by conveyer of slagging tap through ring chain bucket coolelevator
To cooling feed bin, automatic packaging system is delivered to through conveyer after cooling, is transported outward after pack packing.
7th, the tiny structure Thermal desorption of material described in step 2, in order to ensure residue can reach national respective row after material pyrolysis
Standard is put, rotation pyrolysis oven adds up the reaction time should be not less than 10h, and general control is in 10h ~ 15h.
Tiny structure indirectly heat described in step 2 rotates pyrolysis oven, is that rotation pyrolysis oven is placed in combustion chamber, in combustion chamber
Multigroup burner is set, and burner carries out heating to rotation pyrolysis furnace outer wall as fuel using natural gas and the fixed gas reclaimed and risen
Temperature, carries out indirectly heat to treating material in rotation pyrolysis oven by the heat for carrying out spinning pyrolysis oven wall, realizes static state
Heat supply and dynamic are heated, this indirect heating manner ensure that the completeness of material Thermal desorption, reclaim the rate of recovery of fuel oil with
And flue gas, residue reach national corresponding discharge standard after pyrolysis.
8th, tiny structure indirectly heat described in step 2 rotates pyrolysis oven, and rotary speed is adjustable in 0 ~ 1r/min, and inside is employed
System is removed in coking, and being close to furnace wall using double helix scraper moves back and forth, and while rotary motion, realizes scraper and body of heater not
Same rotation speed operation, removes colloid initial stage in coking, thoroughly solves furnace wall coking problem, greatly ensures combustion heat energy
Effectively utilize.
9th, point drum described in step 3 and burner are interlocked, and the temperature of drum can be divided by the quantity combusted regulation and control of burner
And pressure.It is required that the temperature control of point drum is below 150 DEG C, Stress control is in below 0.04Mpa.
10th, burner described in step 4 uses full-automatic control system, can be according in rotation pyrolysis oven burner hearth and point drum
Temperature auto-control ignition temperature, gas flow modification scope be 16 ~ 150Nm3/h。
Embodiment 1：
Discarding fender progress harmless treatment to Daqing oil field about 1500t underground work parcel greasy filth, there is provided 1 set of 15t/
D tiny structure indirectly heat revolving burner pyrolytic processes, process cycle 3 months.Material hangs grab bucket feeding disintegrating machine through row, is passed through after crushing
Totally-enclosed drag conveyor is delivered to the hydraulic feed machine of rotation pyrolysis oven, and the material after 15t is broken is disposable by hydraulic feed
Machine is delivered in rotation pyrolysis oven.Start negative pressure system and make it that vacuum reaches 0.02Mpa in rotation pyrolysis oven, it is ensured that rotation pyrolysis
Stove rotating speed is 0.4r/min, lights 3 groups in 5 groups of burners so that 3 groups of burner full-load operations, is supervised by temperature, pressure
Control the temperature in system regulation stove.In-furnace temperature rises to 200 DEG C by 30 DEG C after 2h, and the temperature of this time-division drum is 90 DEG C, from cold
Condenser outlet visor sees beginning withdrawing fluid；The 4th group of burner is lighted, continues to heat up with 50 ~ 55 DEG C/h heating rate, makes
Obtain in-furnace temperature and rise to 300 DEG C by 200 DEG C, the temperature of this time-division drum is constant at 90 DEG C, during which there is substantial amounts of liquid-phase reflux；After
The continuous heating rate with 40 ~ 45 DEG C/h heats up so that in-furnace temperature rises to 400 DEG C by 300 DEG C, and the temperature of this time-division drum exists
150 DEG C gradually are risen to by 90 DEG C in 2.5h, and is down in 0.5h 130 DEG C, during which produces that fixed gas is maximum in stove, liquid phase is returned
Maximum flow；In order to ensure the higher liquid phase rate of recovery and ensure that oil content reaches corresponding discharging standards in residue,
The 5th group of burner is lighted, continues to heat up with 95 ~ 100 DEG C/h heating rate so that in-furnace temperature is quickly ramped up to 500 by 400 DEG C
DEG C, the temperature of this time-division drum is gradually down to 100 DEG C by 130 DEG C, and during which liquid-phase reflux amount starts to reduce；Successively close the 5th group,
4 groups, 3 groups of burners, are cooled so that in-furnace temperature is down to 400 DEG C by 500 DEG C, this time-division drum with 50 DEG C/h rate of temperature fall
Temperature continue to be slowly drop down to less than 90 DEG C, during which liquid-phase reflux amount is progressively reduced until do not have；All burners are closed, are revolved
Turn pyrolysis oven reaction to terminate（Accumulative reaction time 10.5h）, into temperature-fall period, when in-furnace temperature is down to less than 300 DEG C, startup
Automatic high temperature slag-tapping system.Hot-engine sludge delivers to cooling feed bin, after cooling through conveyer of slagging tap by ring chain bucket coolelevator
Automatic packaging system, pack packing are delivered to through conveyer.
When rotation pyrolysis in-furnace temperature rises to 200 DEG C, start to produce steam through dividing a drum to enter condenser, condense out
Liquid phase enter oil water separator, carry out water-oil separating, the fuel oil overflow isolated to oil tank, the water separated is through pump
Beat to neighbouring oily waste water treatment station；After the fixed gas that condensed device comes out removes dust, sour gas through waste gas purification apparatus
Enter burner through spark arrester, energy is provided to rotation pyrolysis oven as fuel.With gradually rising under condensation for in-furnace temperature
The amount of liquid phase and fixed gas amount come are increasing, until in-furnace temperature reaches 390 DEG C, liquid measure and tolerance are maximum, measure afterwards gradually
Reduce.With the increase of fixed gas yield, the consumption of burner natural gas is gradually decreased.Burn Indoor Combustion fixed gas and natural
The flue gas that gas is produced is pumped into the SO in wet desulfurization dust-removing device removing flue gas by air-introduced machine through flue2、H2The sour gas such as S with
And part flue dust, most remove carbon monoxide, nitrogen oxides and the flue dust in flue gas through absorbent charcoal adsorber afterwards, it is ensured that flue gas
Final qualified discharge.
Fender is discarded in 1500t underground work and parcel greasy filth is handled through tiny structure indirectly heat revolving burner pyrolytic process
Afterwards, add up to reclaim fuel oil 120t, understood through full range analysis, wherein gasoline proportion is that 18.3%, diesel oil accounts for 25.6%；Production
The higher residue 1300t of raw carbon content, can further be used as the raw material of production construction material and adsorbent.
Flue gas and residue after to being handled through tiny structure indirectly heat revolving burner pyrolytic process are monitored respectively, are monitored
As a result flue gas reaches《Dangerous waste incineration contamination control standard》（GB18484-2001）The requirement of corresponding index, residue reaches
The requirement of agricultural sludge pollutant catabolic gene standard (G B 4284-84) corresponding index.
Embodiment 2：
The about 300t underground work parcel greasy filth that Daqing oil field is produced to operation discards fender and carries out harmless treatment, carries
For 1 set of 10t/d tiny structure indirectly heat revolving burner pyrolytic process, process cycle 1 month.It is broken that material hangs grab bucket feeding through row
Machine, is delivered to the hydraulic feed machine of rotation pyrolysis oven through totally-enclosed drag conveyor after crushing, the material after 10t is broken is disposable
Delivered to by hydraulic feed machine in rotation pyrolysis oven.Start negative pressure system and make it that vacuum reaches 0.02Mpa in rotation pyrolysis oven, really
It is 1r/min to protect rotation pyrolysis oven rotating speed, lights 2 groups in 4 groups of burners so that 2 groups of burner full-load operations, passes through temperature
Temperature in degree, pressure monitoring system regulation and control stove.In-furnace temperature rises to 200 DEG C by 30 DEG C after 1.5h, the temperature of this time-division drum
For 90 DEG C, the withdrawing fluid since being seen condensator outlet visor；The 3rd group of burner is lighted, with 80 ~ 85 DEG C/h heating rate
Continue to heat up so that in-furnace temperature rises to 300 DEG C by 200 DEG C, and the temperature of this time-division drum is to slowly warm up to 125 DEG C by 90 DEG C,
There is substantial amounts of liquid-phase reflux period；Continue to heat up with 50 DEG C/h heating rate so that in-furnace temperature rises to 400 DEG C by 300 DEG C,
The temperature of this time-division drum rises to 130 DEG C of maintenance and remained unchanged, and fixed gas maximum is during which produced in stove, liquid-phase reflux amount is most
Greatly；In order to ensure the higher liquid phase rate of recovery and ensure that oil content reaches corresponding discharging standards in residue, lights the 4th
Group burner, continues to heat up so that in-furnace temperature is quickly ramped up to 500 DEG C by 400 DEG C, now with 95 ~ 100 DEG C/h heating rate
The temperature of drum is divided still to stablize constant at 130 DEG C；Continue heat supply, maintain in-furnace temperature at 500 DEG C or so, point drum after 1h
Temperature starts slow decline, and in-furnace temperature also begins to decline, and gas phase yield and liquid-phase reflux amount start to reduce；Divide after 3.5h
Less than 90 DEG C are down at a temperature of drum, all burners are closed, rotation pyrolysis oven reaction terminates（The accumulative reaction time
11.5h）, into temperature-fall period, when in-furnace temperature is down to less than 300 DEG C, start automatic high temperature slag-tapping system.Hot-engine sludge is through going out
Slag conveyer, cooling feed bin is delivered to by ring chain bucket coolelevator, and automatic packaging system is delivered to through conveyer after cooling, dress
Bag packing.
When rotation pyrolysis in-furnace temperature rises to 200 DEG C, start to produce steam through dividing a drum to enter condenser, condense out
Liquid phase enter oil water separator, carry out water-oil separating, the fuel oil overflow isolated to oil tank, the water separated is through pump
Beat to neighbouring oily waste water treatment station；After the fixed gas that condensed device comes out removes dust, sour gas through waste gas purification apparatus
Enter burner through spark arrester, energy is provided to rotation pyrolysis oven as fuel.With gradually rising under condensation for in-furnace temperature
The amount of liquid phase and fixed gas amount come are increasing, until in-furnace temperature reaches 400 DEG C, liquid measure and tolerance are maximum, measure afterwards gradually
Reduce.With the increase of fixed gas yield, the consumption of burner natural gas is gradually decreased.Burn Indoor Combustion fixed gas and natural
The flue gas that gas is produced is pumped into the SO in wet desulfurization dust-removing device removing flue gas by air-introduced machine through flue2、H2The acid sour gas such as S
And part flue dust, most remove carbon monoxide, nitrogen oxides and the flue dust in flue gas through absorbent charcoal adsorber afterwards, it is ensured that cigarette
The final qualified discharge of gas.
600t underground work discards fender and parcel greasy filth after the processing of tiny structure indirectly heat revolving burner pyrolytic process,
It is accumulative to reclaim fuel oil 20t, understood through full range analysis, wherein gasoline proportion is that 35%, diesel oil accounts for 35%；Produce carbon content
Higher residue 480t, can further be used as the raw material of production construction material and adsorbent.
Flue gas and residue after to being handled through tiny structure indirectly heat revolving burner pyrolytic process are monitored respectively, are monitored
As a result flue gas reaches《Dangerous waste incineration contamination control standard》（GB18484-2001）The requirement of corresponding index, residue reaches
The requirement of agricultural sludge pollutant catabolic gene standard (GB4284-84) corresponding index.
Claims (10)
1. a kind of oilfield downhole operation parcel greasy filth discards fender method for innocent treatment, it is characterised in that：Including following step
Suddenly：
（1）, material broken closed feeding system：Material initially enters disintegrating machine, and material is broken into 5-10cm, through conveyer
It is delivered to the hydraulic feed system of rotation pyrolysis oven；Directly it is connected in hydraulic feed system with rotation pyrolysis oven closed chamber；
（2）, material tiny structure Thermal desorption：Material is through step（1）Broken closed feeding system feeding tiny structure indirectly heat rotation
Turn in pyrolysis oven, according to material properties, regulation and control rotation pyrolysis in-furnace temperature and pyrolysis time；Material is in vacuum in rotation pyrolysis oven
Spend under the tiny structure environment for 0.02Mpa, 200 DEG C are risen to by room temperature first in 2h, stopped between 100 DEG C ~ 200 DEG C
1.5h, now has a large amount of vapor to steam；Then 500 DEG C are risen to by 200 DEG C with average 35 DEG C/h ~ 55 DEG C/h heating rate,
Accumulative heating-up time 5.5h ~ 8.5h, is stopped wherein being stopped between 200 DEG C ~ 300 DEG C between 1h ~ 2h, 300 DEG C ~ 400 DEG C
2.5h ~ 3.5h, stops 1.0h ~ 5.0h between 400 DEG C ~ 500 DEG C, and this temperature control segment produces substantial amounts of cracking cut, it is condensed after
Reclaim；The last rate of temperature fall with average 50 DEG C/h ~ 60 DEG C/h is down to less than 400 DEG C by 500 DEG C；Residue after pyrolysis is through cold
But elevator is delivered to packaging system after delivering to cooling feed bin cooling；
（3）, gas-liquid separation and liquid phase reclaim：The steam that material is produced in rotation pyrolysis oven after Thermal desorption first passes around a point drum
Separated for the first time, the liquid phase separated through point drum is heavy oil, and gas phase further condenses recovery into condenser, condensed
The liquid phase that device condensation is reclaimed enters oil water separator and carries out water-oil separating, and the fuel oil separated enters oil and reclaims storage tank, point
Separate out the oil-polluted water come and be delivered to re-injection underground after the processing of oily waste water treatment station；
（4）, fixed gas purification and reuse：The fixed gas produced after condensed device, is removed in fixed gas by waste gas purification apparatus
Sour gas and dust, lighted through spark arrester with natural gas together as fuel through burner, give rotation pyrolysis oven provide
Thermal source；
（5）, fume treatment and discharge：Come from the flue gas of the burning generation of fixed gas and natural gas in combustion chamber, first pass around
Wet desulfurization dust-removing device remove acid gas in flue gas, most afterwards through absorbent charcoal adsorber remove flue gas in carbon monoxide,
Nitrogen oxides and flue dust, the final qualified discharge of flue gas；
（6）, automatic high temperature slag-tapping system：Residue after pyrolysis delivers to cooling feed bin by conveyer of slagging tap through coolelevator,
Packaging system is delivered to after cooling.
2. a kind of oilfield downhole operation parcel greasy filth according to claim 1 discards fender method for innocent treatment, its
It is characterised by：The step（2）The middle rotation pyrolysis oven accumulative reaction time should be controlled in 10h ~ 15h.
3. a kind of oilfield downhole operation parcel greasy filth according to claim 1 discards fender method for innocent treatment, its
It is characterised by：The step（2）Rotation pyrolysis oven is placed in combustion chamber, multigroup burner is set in combustion chamber, burner is with day
Right gas and the fixed gas reclaimed are pyrolyzed furnace outer wall to rotation as fuel and carry out heat temperature raising, by carrying out spinning pyrolysis oven wall
Heat carries out indirectly heat to treating material in rotation pyrolysis oven.
4. a kind of oilfield downhole operation parcel greasy filth according to claim 1 discards fender method for innocent treatment, its
It is characterised by：The step（2）The rotary speed for rotating pyrolysis oven is 0 ~ 1r/min, and internal coking removes system and uses double helix
Scraper is close to furnace wall reciprocating motion.
5. a kind of oilfield downhole operation parcel greasy filth according to claim 1 discards fender method for innocent treatment, its
It is characterised by：Step（3）Described point of drum is interlocked with burner, and the temperature control of described point of drum is below 150 DEG C, pressure control
System is in below 0.04Mpa.
6. a kind of oilfield downhole operation parcel greasy filth according to claim 1 discards fender method for innocent treatment, its
It is characterised by：Step（4）The burner gas flow modification scope is 16 ~ 150Nm3/h。
7. a kind of oilfield downhole operation parcel greasy filth according to claim 3 discards fender method for innocent treatment, its
It is characterised by：4-10 group burners are set in the combustion chamber.
8. a kind of oilfield downhole operation parcel greasy filth according to claim 1 discards fender method for innocent treatment, its
It is characterised by：The step（4）The fixed gas produced after condenser is C1 ~ C4 organic hydrocarbon, dust and sour gas.
9. a kind of oilfield downhole operation parcel greasy filth according to claim 1 discards fender method for innocent treatment, its
It is characterised by：The disintegrating machine is double-shaft crusher.
10. a kind of oilfield downhole operation parcel greasy filth according to claim 1 discards fender method for innocent treatment, its
It is characterised by：The material is broken into the hydraulic feed that 5-10cm is delivered to rotation pyrolysis oven through full-automatic enclosed drag conveyor
System.
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