CN108911456A - A kind of new process for treating oil-containing sludge and system - Google Patents
A kind of new process for treating oil-containing sludge and system Download PDFInfo
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- CN108911456A CN108911456A CN201810889474.4A CN201810889474A CN108911456A CN 108911456 A CN108911456 A CN 108911456A CN 201810889474 A CN201810889474 A CN 201810889474A CN 108911456 A CN108911456 A CN 108911456A
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- oil
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- oily sludge
- cracker
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1003—Waste materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of new process for treating oil-containing sludge and system, the processing of oily sludge are divided into three thermal cracking stages, each stage solves a particular problem of oily sludge, can more effectively handle oily sludge in this way, keep its innoxious.Another key point is the structure design of matched with hot decomposing machine, internal radiation heating is changed to from traditional external heating method, oily sludge be restrained effectively in this way in the coking problem of equipment inner wall, operate equipment normally, reach water simultaneously and two purposes of deoiling, while keeping oily sludge processed qualified, guarantee the normal operation of processing equipment；The characteristics of whole set process modularized design, is easily assembled to, overhauls, upgrading, and it is low also to have maintenance cost concurrently, high degree of automation.
Description
Technical field
The present invention relates to contained Mud Treatment Technology field, specifically a kind of new process for treating oil-containing sludge and system.
Background technique
Under the further severe pressure of Environmental Protection Situation, the oily sludge bring pollution that oil field, Petrochemical Enterprises are accumulated is asked
The great attention by country is inscribed, enterprise needs the oily sludge generated in properly disposition production activity.Both at home and abroad at present for
Oily sludge processing mode up to standard is：1, high temperature incineration is carried out into incinerator, burns remaining product up to standard and is filled
Or burned brick etc., this processing mode is at high cost, and coking phenomenon occur influences incinerator normal operation, and the energy cannot be returned effectively
Receive, if oily sludge moisture content is high, into incinerator after in-furnace temperature can be caused to reduce, pollutant cannot be stablized up to not after burning
To national requirements discharge standard；2, oily sludge is handled with the mode of drying common sludge, because of the particularity of oily sludge,
Common machine can not be adapted to the processing of oily sludge, agglomerate coking in equipment so as to cause oily sludge, make equipment
It scraps, in addition, the oily sludge that common sludge stoving process is handled is unable to compliance rate.Such as：Rotary kiln type sludge dryer
Etc. equipment during handling greasy dirt, can the coking inside equipment in a very short period of time, cause equipment that cannot run well.
Existing sludge drying processing technique is not to be directed to customized in oily sludge, due to the nature particularity of oily sludge
(including oil content is high, hardly possible dehydration, large viscosity, easy coking), existing sludge drying processing technique is not particularly suited for oily sludge
Processing.A series of problems, such as prior art processing oily sludge can cause processing equipment to damage, and processing result is not up to standard.And it is original
Equipment used in sludge drying process is external heating, is dried to sludge；Caused problem is greasy dirt in equipment
Inner wall carries out agglomeration coking, gradually occluding device, and equipment is made to be not normally functioning or even thoroughly scrap.
Summary of the invention
The purpose of the present invention is to provide a kind of new process for treating oil-containing sludge and system, to solve to mention in background technique
Out the problem of.
To achieve the above object, the present invention provides the following technical solutions；
A kind of new process for treating oil-containing sludge, the new process for treating oil-containing sludge include:
Step 1：Oily sludge is handled using level-one cracker, is cracked out in the oily sludge with evaporation
Moisture and light oil, to form desiccation greasy filth；
Step 2：The greasy dirt is handled using second level cracker, is cracked out in the oily sludge with evaporation
Residual moisture and oil, formed greasy filth slag；
Step 3：The greasy filth slag is handled using three-level cracker, the greasy filth slag is carbonized, forms dispersion
Powdered granule.
Preferably, be at least partly enclosed in the powdered granule being carbonized heavy metal in the oily sludge from
Son.
Preferably, in step 1, the temperature handled using level-one cracker to oily sludge is at 150 degree Celsius -300
Between degree Celsius, the reaction time is between -70 minutes 40 minutes；In step 2, using second level cracker to the greasy dirt into
The temperature of row processing is between 400 degrees Celsius -500 degrees Celsius, and the reaction time is between -40 minutes 20 minutes；In step 3, adopt
The temperature handled with three-level cracker to the dregs of fat is between 500 degrees Celsius -650 degrees Celsius, and the reaction time is at 40 points
Between clock -70 minutes.
Preferably, the moisture content of the desiccation greasy filth is less than 15%, and the oil content of the greasy filth slag is less than 2%, the powder
The oil content of shape particle is less than 0.3%.
Preferably, the powdered granule enters lime-ash storage pool and is stored.
Preferably, the vapor and light oil generated in step 1 and step 2 enters in second level cracking cooler, cold
Oil water mixture is congealed into, the oil water mixture enters oil water separator, carries out water-oil separating.
Preferably, the oil generated in step 3 first passes through a deduster, subsequently into three-level cracking cooler, is condensed into
Oil water mixture is separated through the oil water separator.
Preferably, the oil that the oil water separator is isolated enters in an oil recovery holding vessel.
It is described new to contain greasy dirt the present invention also provides a kind of system of the new process for treating oil-containing sludge described in realize
Mud treatment system includes three decomposing machines being sequentially connected, respectively level-one cracker, second level cracker and three-level cracker, is contained
Greasy dirt sequentially passes through the level-one cracker, second level cracker and three-level cracker to be handled；
The decomposing machine includes feed inlet, reaction chamber, neat gas burner, oil gas vent and discharge port, the reaction chamber
In be provided with spiral propeller and heat radiation tube, the feed inlet and the discharge port are located at the both ends of the reaction chamber simultaneously
It is connected to the reaction chamber to feed and discharge, the neat gas burner is connect with the heat radiation tube, described for heating
Heat radiation tube makes the heat radiation tube heat the reaction chamber by way of radiation, and the spiral propeller is used for will be described
Material in reaction chamber is advanced into the discharge port from the feed inlet, and the gas generated in the reaction chamber is from the reserved opening
Discharge.
Preferably, the new disposal of oily sludge system further includes heat exchanger, the high temperature cigarette of the heat radiation tube discharge
Gas will enter the air preheat of neat gas burner after by the heat exchanger.
Preferably, the new disposal of oily sludge system further include a second level cracking cooler, three-level cracking cooler,
Deduster and oil water separator.
Compared with prior art, the beneficial effects of the invention are as follows：The processing of oily sludge is divided into three thermal cracking stages,
Each stage solves a particular problem of oily sludge, can more effectively handle oily sludge in this way, keep its innoxious.Separately
An outer key point is the structure design of mating decomposing machine, is changed to internal radiation heating from traditional external heating method, in this way
It restrained effectively coking problem of the oily sludge in equipment, operate equipment normally, while reaching water and going
Oily two purposes guarantee the normal operation of processing equipment, whole set process modularization is set while keeping oily sludge processed qualified
The characteristics of meter, is easily assembled to, overhauls, upgrading, and it is low also to have maintenance cost concurrently, high degree of automation.
Detailed description of the invention
Fig. 1 is the flow chart of the new process for treating oil-containing sludge of one kind provided by the invention；
Fig. 2 is the structural schematic diagram of decomposing machine provided by the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, carries out to the technical aspect in the embodiment of the present invention clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, a kind of embodiment provided by the invention：
A kind of new process for treating oil-containing sludge, the new process for treating oil-containing sludge include:
Step 1：Oily sludge is handled using level-one cracker, is cracked out in the oily sludge with evaporation
Moisture and light oil, to form desiccation greasy filth；
Step 2：The greasy dirt is handled using second level cracker, is cracked out in the oily sludge with evaporation
Residual moisture and oil, formed greasy filth slag；
Step 3：The dregs of fat are handled using three-level cracker, the dregs of fat are carbonized, the powder of dispersion is formed
Shape particle.
In the present embodiment, be at least partly enclosed in the powdered granule being carbonized in the oily sludge heavy metal from
Son.
In the present embodiment, in step 1, the temperature handled using level-one cracker oily sludge is Celsius 150
Between -300 degrees Celsius of degree, the reaction time is between -70 minutes 40 minutes；In step 2, using second level cracker to the oil
The temperature that sludge is handled is between 400 degrees Celsius -500 degrees Celsius, and the reaction time is between -40 minutes 20 minutes；Step
In three, the temperature handled using three-level cracker to the dregs of fat is between 500 degrees Celsius -650 degrees Celsius, the reaction time
Between -70 minutes 40 minutes.
Specifically, level-one cracker is first step that oily sludge needs to pass through, level-one pyrolysis furnace in step 1
Reaction chamber temperature is 300 DEG C, its purpose is to heat to oily sludge, and evaporates a part of water and light oil；Contain
Greasy dirt, which needs to be heated to 600 DEG C, can just be fully processed, and heating greasy dirt gradually is conducive to the saving of resource.Containing greasy dirt
After mud enters level-one cracker, air is isolated in decomposing machine and carries out radiant heating, has internal spiral propeller to be pushed away
Into, make greasy dirt surface constantly update, heat radiation tube irradiation under, water and light oil gradually evaporate, and the reaction time is about 1 small
When, desiccation greasy filth moisture content 15% out.The vapor and light oil that period evaporates enter a second level and crack cooler, cold
Congeal into oil water mixture；Oil water mixture enters oil water separator, carries out water-oil separating.
In step 2, desiccation greasy filth from level-one cracker come out after, into second level cracker.The reaction chamber of second level cracker
Temperature is about at 450 DEG C or so, and 600 DEG C of greasy filth surface irradiation temperature, the purpose is to evaporate to crack out overwhelming majority oil in greasy dirt.
After greasy dirt enters second level cracker, be isolated air in reaction chamber and carry out radiant heating, have internal spiral propeller into
Row promotes, and the reaction time is about 0.5 hour, and remaining greasy filth slag oil content is below 2% after reaction.The water that period evaporates steams
Gas and the oil cracked out enter a second level and crack cooler, are condensed into oil water mixture；Oil water mixture enters oil water separator,
Carry out water-oil separating.
In step 3, last greasy filth slag enters three-level cracker.About 500 DEG C of three-level cracker reaction chamber temperature or so, oil
650 DEG C of slag surface irradiation temperature, its purpose is to be carbonized by second level cracker treated greasy filth slag, and crack greasy filth
Long chain macromolecule organic matter in slag.After the dregs of fat enter three-level cracker, air is isolated in pyrolysis furnace and carries out radiant heating, is had
Internal spiral propeller is promoted, and the reaction time is about 1 hour, after reaction remaining greasy filth slag oil content 0.3% with
Under, heavy metal ion is wrapped in the mud of carbonization.Period, the oil gas cracked out first pass through deduster, split subsequently into three-level
Cooler is solved, is separated through oil water separator.
Remaining greasy filth residue is in the powdered granule shape of dispersion after three-level cracks, this is product up to standard, into lime-ash
Storage pool waits subsequent processing.
In the present embodiment, the oil that the oil water separator is isolated enters in an oil recovery holding vessel.
It is described new to contain greasy dirt the present invention also provides a kind of system of the new process for treating oil-containing sludge described in realize
Mud treatment system includes three decomposing machines being sequentially connected, respectively level-one cracker, second level cracker and three-level cracker, is contained
Greasy dirt sequentially passes through the level-one cracker, second level cracker and three-level cracker to be handled；
The decomposing machine includes feed inlet, reaction chamber, neat gas burner, oil gas vent and discharge port, the reaction chamber
In be provided with spiral propeller and heat radiation tube, the feed inlet and the discharge port are located at the both ends of the reaction chamber simultaneously
It is connected to the reaction chamber to feed and discharge, the neat gas burner is connect with the heat radiation tube, described for heating
Heat radiation tube makes the heat radiation tube heat the reaction chamber by way of radiation, and the spiral propeller is used for will be described
Material in reaction chamber is advanced into the discharge port from the feed inlet, and the gas generated in the reaction chamber goes out from the oil gas
Mouth discharge.
In the present embodiment, the new disposal of oily sludge system further includes heat exchanger, the height of the heat radiation tube discharge
Warm flue gas will enter the air preheat of neat gas burner, can be effectively saved resource after by the heat exchanger,
Reduce operating cost.
In the present embodiment, the new disposal of oily sludge system further include a second level cracking cooler, three-level cracking it is cold
But device, deduster and oil water separator.
The working principle of decomposing machine：Oily sludge enters from feed inlet, advances into reaction chamber by feed auger；Into anti-
Continue to be slowly advanced by reaction chamber spiral after answering room, last residue solid phase comes out from discharge port.Neat gas burner heats hot spoke
Penetrate pipe, heat radiation tube heats the indoor oily sludge of reaction by way of radiation, in oily sludge water or oil evaporation split
Solution comes out.The oil gas cracked out comes out from oil gas vent, into cooling device.The high-temperature flue gas that heat radiation tube comes out, is passing through
Cross after heat exchanger, the air preheat for entering neat gas burner, resource can be effectively saved in this way, reduce operation at
This.In the operational process of corollary equipment, the reaction chamber of decomposing machine is sealing isolation air, from traditional external heating method
It is changed to internal radiation heating, coking problem of the oily sludge in equipment is restrained effectively in this way, keeps equipment normal
Operating.This decomposing machine is suitable for level-one cracker, second level cracker and three-level cracker.
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art,
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of invention.
Claims (10)
1. a kind of new process for treating oil-containing sludge, it is characterised in that：The new process for treating oil-containing sludge includes:
Step 1：Oily sludge is handled using level-one cracker, to evaporate the part cracked out in the oily sludge
Moisture and light oil, to form desiccation greasy filth；
Step 2：The desiccation greasy filth is handled using second level cracker, is cracked out in the oily sludge with evaporation
Residual moisture and oil form greasy filth slag；
Step 3：The greasy filth slag is handled using three-level cracker, the greasy filth slag is carbonized, the powder of dispersion is formed
Shape particle.
2. the new process for treating oil-containing sludge of one kind according to claim 1, it is characterised in that：The powdery of the carbonization
The heavy metal ion being at least partly enclosed in grain in the oily sludge.
3. the new process for treating oil-containing sludge of one kind according to claim 1, it is characterised in that：In step 1, using one
The temperature that grade cracker handles oily sludge is between 150 degrees Celsius -300 degrees Celsius, and the reaction time was at 40 minutes -70
Between minute；In step 2, the temperature handled using second level cracker the greasy dirt is Celsius at 400 degree Celsius -500
Between degree, the reaction time is between -40 minutes 20 minutes；In step 3, the dregs of fat are handled using three-level cracker
Temperature between 500 degrees Celsius -650 degrees Celsius, the reaction time is between -70 minutes 40 minutes.
4. the new process for treating oil-containing sludge of one kind according to claim 3, it is characterised in that：The desiccation greasy filth contains
Water rate is less than 15%, and the oil content of the greasy filth slag is less than 2%, and the oil content of the powdered granule is less than 0.3%.
5. the new process for treating oil-containing sludge of one kind according to claim 1, it is characterised in that：The powdered granule enters
Lime-ash storage pool is stored, and the vapor and light oil generated in step 1 and step 2 enters a second level and cracks cooler
In, it is condensed into oil water mixture, the oil water mixture enters oil water separator, carries out water-oil separating.
6. the new process for treating oil-containing sludge of one kind according to claim 5, it is characterised in that：The oil generated in step 3
A deduster is first passed through, subsequently into three-level cracking cooler, oil water mixture is condensed into, through the oil water separator point
From.
7. the new process for treating oil-containing sludge of one kind according to claim 6, it is characterised in that：The oil water separator point
The oil separated out enters in an oil recovery holding vessel.
8. a kind of system realized such as new process for treating oil-containing sludge of any of claims 1-7, feature exist
In：The new disposal of oily sludge system includes three decomposing machines being sequentially connected, respectively level-one cracker, second level cracking
Device and three-level cracker, oily sludge sequentially pass through the level-one cracker, second level cracker and three-level cracker to be located
Reason；
The decomposing machine includes feed inlet, reaction chamber, neat gas burner, oil gas vent and discharge port, is set in the reaction chamber
Be equipped with spiral propeller and heat radiation tube, the feed inlet and the discharge port be located at the both ends of the reaction chamber and with institute
Reaction chamber connection is stated to feed and discharge, the neat gas burner is connect with the heat radiation tube, for heating the hot spoke
Pipe is penetrated, the heat radiation tube is made to heat the reaction chamber by way of radiation, the spiral propeller is used for the reaction
Material in chamber is advanced into the discharge port from the feed inlet, and the gas generated in the reaction chamber is arranged from the reserved opening
Out.
9. the new disposal of oily sludge system of one kind according to claim 8, it is characterised in that：The new oily sludge
Processing system further includes heat exchanger, and the high-temperature flue gas of the heat radiation tube discharge will enter day after by the heat exchanger
The air preheat of right air burner.
10. the new disposal of oily sludge system of one kind according to claim 8, it is characterised in that：It is described new to contain greasy dirt
Mud treatment system further includes second level cracking cooler, three-level cracking cooler, deduster and oil water separator.
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| CN201810889474.4A CN108911456B (en) | 2018-08-07 | 2018-08-07 | Novel oily sludge treatment method and system |
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| CN201810889474.4A CN108911456B (en) | 2018-08-07 | 2018-08-07 | Novel oily sludge treatment method and system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112094018A (en) * | 2020-10-26 | 2020-12-18 | 东营市万睿环保科技有限公司 | Intelligent oil silt and municipal sludge drying and cracking furnace |
| CN112624553A (en) * | 2019-09-24 | 2021-04-09 | 王其成 | Medium-liquid oil sludge cracking treatment device and process |
| CN112724992A (en) * | 2020-12-15 | 2021-04-30 | 山东省环境保护科学研究设计院有限公司 | Oil-containing sludge cracking device |
| CN112724993A (en) * | 2020-12-15 | 2021-04-30 | 山东省环境保护科学研究设计院有限公司 | System and method for oil-containing sludge cracking |
| CN112775142A (en) * | 2019-12-04 | 2021-05-11 | 青岛博迈斯环保技术有限公司 | High-temperature high-speed continuous carbonization treatment device for oily waste |
| CN113877940A (en) * | 2021-10-22 | 2022-01-04 | 温州市益科环保科技有限公司 | Medical waste treatment process |
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