CN209368098U - A kind of oily sludge disposal system - Google Patents
A kind of oily sludge disposal system Download PDFInfo
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- CN209368098U CN209368098U CN201822276812.5U CN201822276812U CN209368098U CN 209368098 U CN209368098 U CN 209368098U CN 201822276812 U CN201822276812 U CN 201822276812U CN 209368098 U CN209368098 U CN 209368098U
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Abstract
The utility model discloses a kind of oily sludge disposal systems, it include thermal desorption system, oil gas disposal system and oil recovery systems, thermal desorption system includes thermal desorption kiln, hot air chamber and the first deduster, oil gas disposal system includes subregion expansion chamber, spray column, scrubbing tower, burning chamber, heat exchanger and the second deduster, and oil recovery systems include three phase separator, spray column spray gun and scrubbing tower spray gun.The utility model can greatly improve heat transference efficiency, sufficiently recycle remaining oil product, and optimize the plantation performance of soil by the disposition by direct thermal desorption technology applied to oily sludge.In thermal desorption kiln, the high-temperature flue gas and oily sludge that generate from outside transmit heat by the direct way of contact, high-temperature flue gas by oily sludge moisture and oil be evaporated after recycling oil product and purify discharge.Oily sludge removes moisture removal and oil, becomes clean soil, after cooling is quenched, can be used for backfilling or planting.
Description
Technical field
The utility model relates to Waste Disposal Technology fields, and in particular to a kind of oily sludge disposal system.
Background technique
Oily sludge is the oily solid sludge of generation during oil exploitation, transport, refining and oily waste water treatment, is
One of main polluting waste generated in oil and gas development and storage and transport process.In oily sludge containing a large amount of benzene homologues, phenols,
The noxious material of the foul smellings such as anthracene, pyrene, but these substances are also oil component simultaneously.Oily sludge is both in oilfield process
The waste of generation, while being also a kind of resource, if oily sludge is not pocessed recycling oil therein, not only pollute ring
Border, and cause the waste of resource.The processing of oily sludge is always a great problem in oil field.For many years, China oil field
The essentially discarded oil pit landfill of the greasy filth disposal options in area, this kind of nonstandard discarded and disposal process are brought very to environment
Big pollution hidden trouble.Harmless treatment and Oil residue recuperation are carried out to oily sludge using suitable technological means, can not only be generated
Certain economic benefit, and meeting pollution abatement, bring huge environmental benefit and social benefit.
Method of disposal common for oily sludge includes solvent extraction, incineration method, bioanalysis, indirect thermal phase point at present
From method etc..
1, the process object of incineration method, burning is mainly greasy filth of the oil content 5~10%, and incineration temperature general control exists
800~1000 DEG C, time control is burned in 0.5~1.5h, using 50~100% excess airs.China part oil plant has
Sludge incineration device, the downflow type rotary incinerator used such as Hubei Jingmen petrochemical plant, Chang Ling petrochemical plant, Yanshan Petrochemical use
Fluidized bed incinerator, etc..After burning disposal, multiple harmful substances almost all removes oily sludge, works well.But
It invests big, and operating cost is high, need to often be added combustion-supporting fuel, with serious air pollution in burning process, and cannot return
Crude oil is received, the soil after burning is not suitable for planting.
2, solvent extraction, solvent extraction are a kind of for handling the technology of the small oily sludge of the more particles of silt.
The technology utilization extractant dissolves oily sludge, and after agitated and centrifugation, most of organic matter and oil are extracted agent from mud
It extracts；Then recycling extract liquor, which is distilled, is separated from the mixture solvent to be recycled, and oil is used after mutually recycling
In refining again.Solvent extraction generally carries out at room temperature, and solvent is better than bigger effect of extracting, but solvent is than big extraction equipment
The load becomes large, and energy consumption is relatively large.Largely fail the related request for reaching country by sludge extracted, still contains
Higher oil remains a kind of hazardous waste, need to further dispose.Since cost of disposal is high and technique need to be further complete
Kind, extraction is applied to refinery's disposal of oily sludge not yet.
3, bioanalysis, microbial degradation are degraded using original or microbe inoculation (i.e. other microorganisms of fungi, bacterium)
(metabolism) pollutant in soil, and convert pollutant to the process of harmless end prod.The technology to the consumption of energy compared with
It is low, can be with the biggish contaminated site of repaired area, but be affected by environmental factor, cannot degrade all dirts into environment
Object is contaminated, specified microorganisms are only degraded specific pollutants.Process is slow at low temperature for biodegrade, and repair time is long, it usually needs
Several years.The shadow of many factors such as the contaminated physical property matter of biological prosthetic remediation efficiency, Ecological Distribution of Soil Microorganisms structure, soil property
It rings, and more demanding to the nutritional condition in soil.If soil media contaminant restraining microorganism, possibly mesh can not be removed
Mark.The temperature, pH value, nutrient amount etc. for needing to control place are allowed to meet the survival environmental conditions of microorganism.Due to many
The limitation of condition, bioanalysis are not applied to refinery's disposal of oily sludge yet.
4, indirect thermal phase separation method, indirect thermal phase separation method refer to that one kind by indirect heating oily sludge, is separated and simultaneously returned
The method for receiving oily phase.Indirect thermal phase detachment technique passes through heat transfer using the extraneous high-temperature flue gas heating pyrolysis cavity generated
Mode indirect heating oily sludge, its moisture and oil are evaporated, and are introduced condenser and are carried out spray condensation and water-oil separating,
It is finally reached the purpose of oil recovery phase.The technology has many advantages, such as that technical process is simple, disposition effect is good.But indirect heat transmission
Heat transfer efficiency is very low, and disposal of oily sludge amount is not high, and currently used indirect thermal device for phase saparation monomer treating capacity only has 1~2
Ton/hour, affect the large-scale application of technique.Indirect thermal phase detachment technique is very high to the material requirements of pyrolysis cavity,
There should be good heat transfer efficiency to guarantee that grease sufficiently evaporates, there is good shell rigidity to guarantee the smooth operation of material again.It is right
For material, the two attributes are a paradox, at present still without extraordinary solution, to affect technique
Further genralrlization.
In conclusion currently used oily sludge method of disposal all has some limitations, incineration method cannot be recycled
Crude oil, and the soil after burning is not suitable for planting；Solvent extraction cost of disposal is high, and soil extracted is many times
It does not reach requirement；Bioanalysis is affected by environmental factor, and repair time is long；Indirect thermal phase separation method is then since heat transfer is imitated
The problem of rate and material property, affects the large-scale application and popularization of the technology.
Utility model content
The technical problems to be solved in the utility model is in view of the deficiencies of the prior art, it is relatively simple to provide a kind of required equipment
List, cost is relatively low, can greatly improve heat transference efficiency, can sufficiently recycle remaining oil product, and can optimize the plantation performance of soil
The oily sludge disposal system of air is avoided pollution simultaneously.
In order to solve the above technical problems, the utility model adopts the following technical solution: a kind of oily sludge disposal system, packet
It has included thermal desorption system, oil gas disposal system and oil recovery systems, thermal desorption system to dock with oil gas disposal system, at oil gas
System is set to be mutually butted with oil recovery systems；
The thermal desorption system includes thermal desorption kiln, hot air chamber and the first deduster, and the oil gas disposal system includes
There are subregion expansion chamber, spray column, scrubbing tower, burning chamber, heat exchanger and the second deduster, the oil recovery systems include three
Phase separator, spray column spray gun and scrubbing tower spray gun；
The kiln hood of thermal desorption kiln is docked with sewage sludge feed mechanism, and kiln tail is then docked with hot air chamber；Hot air chamber and oil gas are disposed
The heat exchanger of system is docked to access hot-air, and hot air chamber also accesses natural gas；Road traffic direction in thermal desorption kiln
For gentle road transport line direction on the contrary, sludge is advanced from the kiln hood of thermal desorption kiln toward kiln tail, the kiln tail of high-temperature flue gas from thermal desorption kiln is past
Kiln hood is advanced；Thermal desorption kiln is additionally provided with clean soil outlet, and clean soil outlet is docked with the first deduster, the first deduster
Dock smoke evacuation system；
Subregion expansion chamber is docked with the mixed gas outlet at thermal desorption kiln kiln hood to receive the mixing in thermal desorption kiln
The material outlet of gas, subregion expansion chamber is docked with sewage sludge feed mechanism, receives the powder that sedimentation obtains by sewage sludge feed mechanism
Dirt material；The oil gas vent of subregion expansion chamber is docked with spray column, and the lower part of spray column is connected to be formed with the lower part of scrubbing tower to be contained
The structure for conveying of oil gas body；Mixed gas outlet at the top of scrubbing tower is docked with burning chamber；Burning chamber and heat exchanger form annular
Connection, and burning chamber also accesses natural gas；Heat exchanger is docked with the second deduster, and the second deduster docks smoke evacuation system；
Cyclic water tank is equipped in three phase separator, cyclic water tank is connected separately with spray column spray gun and washing by circulating pump
Tower spray gun, spray column spray gun access in spray column, and the top in scrubbing tower is arranged in scrubbing tower spray gun；Three phase separator it is defeated
Entrance is connect with the liquid outlet of the liquid outlet of spray tower bottom and wash tower bottoms respectively, and the bottom of three phase separator is additionally provided with
Spoil disposal outlet.
Further, the sewage sludge feed mechanism includes feeding hopper, conveyor belt and deflector chute, and feeding hopper is set to defeated
The head end of belt is sent, deflector chute is set to below the tail end of conveyor belt for receiving oily sludge, and thermal desorption kiln connects guide
Slot.
Further, the clean soil outlet of the thermal desorption kiln forms cooling to clean soil to quenched cooler is connected to
Mechanism, quenched cooler dock clean soil storage cavern to chain scraper conveyor, chain scraper conveyor is connected to；First deduster and quenched cooling
Device docking forms the dedusting mechanism to the dust-laden exhaust gas after cooling clean soil.
Further, the first deduster is docked by the first blower with chimney, and the second deduster is by the second blower and is somebody's turn to do
Chimney docking is equipped with pollutant in the chimney and monitors mechanism on-line.
Further, the material outlet of subregion expansion chamber is docked to feed back reamer, feed back reamer is connected to conveyor belt, is led to
It crosses the dust that feed back reamer collects expansion chamber and inputs thermal desorption kiln again by conveyor belt.
Further, heat exchanger is connected with air blower, by air blower towards heat exchanger input air.
Further, it is equipped in heat exchanger and carries out the heat exchanger tube of heat exchange for burning gas and air, wherein burning gas
Pass through from shell side, air passes through from tube side.
Further, it is equipped with screw input feeder in the bottom of three phase separator, by screw input feeder by three phase separator
Interior sedimentary clay is discharged and sends thermal desorption kiln back to.
Based on the disposing technique of aforementioned oily sludge disposal system, oily sludge is packed into feeding hopper by loading machine, through conveying
Belt Conveying feeds thermal desorption kiln to deflector chute；Natural gas burns in hot air chamber with the hot-air from oil gas disposal system,
It forms high-temperature flue gas and enters thermal desorption kiln；The oily sludge for entering thermal desorption kiln from kiln hood rolls advance in kiln, with high temperature cigarette
Gas directly contacts, and absorbs the heat in flue gas, and temperature increases, and moisture gradually evaporates；Dewatered oily sludge and temperature are higher
Smoke contacts, temperature further increases after heat absorption, and oil contained in sludge gradually evaporates；When the temperature of sludge is increased to one
After determining the stage, clean soil and carbon granules are left in oil all cracking and evaporations；Anhydrous oil-free clean soil and carbon granules are arranged from kiln tail
Thermal desorption kiln out after air and water mist cooling are quenched, are sent into clean soil storage cavern by chain scraper conveyor and are faced into quenched cooler
When store, wait outward transport；
Burn the high-temperature flue gas of formation in hot air chamber, after entering thermal desorption kiln from kiln tail, transfers heat to containing greasy dirt
Mud, the temperature of itself constantly reduce；Meanwhile the aqueous vapor and oil-gas formation being evaporated from oily sludge are by flue gas, aqueous vapor
With mixed gas made of air-fuel mixture；After the mixed gas of oily transfers heat to sludge, thermal desorption is discharged from kiln hood
Kiln recycles oil product contained in mixed gas into oil gas disposal system；
Air and water mist quenched cooler the clean soil containing carbon granules is carried out cool down it is quenched after, form dust-laden exhaust gas；From
The dust-laden exhaust gas that quenched cooler comes out enters the first deduster, is extracted out after dust separation by the first blower, is sent into chimney and is discharged into
Atmosphere；Chimney is equipped with on-line computing model, monitors the concentration of emission of dust on-line；The dust collected through the first deduster is fallen into
Chain scraper conveyor is sent into clean soil storage cavern and is temporarily stored with the clean soil containing carbon granules；
The mixed gas containing oil gas and dust come out from thermal desorption kiln enters subregion expansion chamber, and subregion expansion chamber is divided into
Four regions, successively behind this four regions, most dust settlings gets off mixed gas；It is settled from subregion expansion chamber
The dust to get off is transmitted back to thermal desorption system by feed back reamer after collecting, and is sent into heat through conveyor belt together with oily sludge and takes off
Attached kiln processing；
Oil-containing gases after dedusting enter spray column, and the recirculated water from oil recovery systems is sprayed into through spray column spray gun to be sprayed
Tower is drenched, oil-containing gases temperature under the cooling of shower water reduces, and the oil in gas becomes liquid by gaseous state, partially enters spray
In water, and enter oil recovery systems with shower water；It is not sprayed during the dust that subregion expansion chamber settles down is in spray
Water drenching collects to form mud, and enters oil recovery systems with shower water；
The tiny oil droplets for not entering shower water enter scrubbing tower with oil-containing gases, the recirculated water warp from oil recovery systems
Scrubbing tower spray gun sprays into scrubbing tower；Oil-containing gases are run from bottom to top in scrubbing tower, washing water in scrubbing tower from top to bottom
Wash oil-containing gases；After oil-containing gases are washed, most tiny oil droplets enter in washing water, and enter oil product with washing water
Recovery system, scrubbing tower outlet are equipped with demister, the tiny oil droplets in further gas recovery；
Mixed gas after the washing of washed tower, thus cannot be straight due to still containing a small amount of tiny oil droplets and non-congealable oil gas
Run in and puts and need to be for further processing；Mixed gas enters burning chamber from scrubbing tower, mixes with the hot-air from heat exchanger, in day
The combustion-supporting lower burning of right gas, the tiny oil droplets contained in mixed gas and fixed gas are thoroughly destroyed by fire；Gas is burnt from burning chamber
Into heat exchanger preheated air, it is equipped with heat exchanger tube in heat exchanger, gas and air is burnt by heat exchanger tube and carries out heat exchange, wherein
It burns gas and walks shell side, air walks tube side；Air is blasted the tubulation in heat exchanger by air blower, and air is burnt by tube wall absorption
The heat that gas passes over forms high-temperature hot air；The hot-air for exchanging heat out from heat exchanger is divided into two-way, enters combustion all the way
Purification mixed gas is burned in cinder room, in addition enters the combustion-supporting natural gas of thermal desorption system all the way, provides for the thermal desorption of oily sludge
Heat；
It burns after gas transfers heat to air, is come out from heat exchanger and enter the second deduster, dust separation；Through dedusting
The gas that burns afterwards is extracted out by the second blower, is discharged into atmosphere by chimney；
The shower water and washing water come out from oil gas disposal system flows into three phase separator；Shower water and washing water disposition contain
After cooking fume, the mud formed in water containing a certain number of oil and a small amount of dust needs to carry out oil, water, mud three phase separation；
Grease mud three-phase mixture in three phase separator is under the collective effect of macromolecule medicament and ultrasonic wave, continuous high speed between particle
Collision, tiny oil droplets increase hundreds times, and flocculation of sludge is at walk；Since the density of oil, water, mud is different, under gravity
Realize three phase separation；The oil product for being suspended in three phase separator napex is pumped into oil tank storage by oil pump, is deposited on three phase separator bottom
The mud in portion is discharged by the screw input feeder of separator bottom, is sent thermal desorption system back to and is disposed again；
Water after three phase separation imports the cyclic water tank set in three phase separator, cyclic water tank and circulation by guiding device
Water pump is connected, and water circulating pump extracts water out from cyclic water tank, send to spray column spray gun and scrubbing tower spray gun, sprays into oil gas respectively
The spray column and scrubbing tower of disposal system wash oil gas, recycle oil product；The shower water and washing water of oil-containing flow back to three phase separation again
Device, three phase separation, is recycled again.
The utility model, creatively will be straight by using for reference the basic principle directed heat transfer in clinker production process
The disposition that thermal desorption technology is applied to oily sludge is connect, heat transference efficiency can be greatly improved, sufficiently recycle remaining oil product, and excellent
Change the plantation performance of soil.In thermal desorption kiln, the high-temperature flue gas and oily sludge generated from outside passes through the direct way of contact
Transmit heat, high-temperature flue gas by oily sludge moisture and oil be evaporated, into oil gas dispose process, recycling oil product simultaneously
Purification discharge, avoids pollution air.Oily sludge removes moisture removal and oil, becomes clean soil, after cooling is quenched, can be used for back
It fills out or plants, to realize huge economic benefit, environmental benefit and social benefit.
Detailed description of the invention
Fig. 1 is Tthe utility model system structural schematic diagram.
In figure, 11 be feeding hopper, and 12 be conveyor belt, and 13 be deflector chute, and 14 be thermal desorption kiln, and 15 be quenched cooler,
16 be chain scraper conveyor, and 17 be hot air chamber, and 18 be the first deduster, and 19 be the first blower, and 21 be subregion expansion chamber, and 22 be feed back
Reamer, 23 be spray column, and 24 be scrubbing tower, and 25 be burning chamber, and 26 be heat exchanger, and 27 be air blower, and 28 be the second deduster, 29
It is chimney for the second blower, 20,31 be three phase separator, and 32 be water circulating pump, and 33 be spray column spray gun, and 34 spray for scrubbing tower
Rifle.
Specific embodiment
In the present embodiment, referring to Fig.1, the oily sludge disposal system includes thermal desorption system, oil gas disposal system
And oil recovery systems, thermal desorption system are docked with oil gas disposal system, oil gas disposal system and oil recovery systems are mutually right
It connects；
The thermal desorption system includes thermal desorption kiln 14, hot air chamber 17 and the first deduster 18, oil gas disposition system
System includes subregion expansion chamber 21, spray column 23, scrubbing tower 24, burning chamber 25, heat exchanger 26 and the second deduster 28, the oil
Product recovery system includes three phase separator 31, spray column spray gun 33 and scrubbing tower spray gun 34；
The kiln hood of thermal desorption kiln 14 is docked with sewage sludge feed mechanism, and kiln tail is then docked with hot air chamber 17；Hot air chamber 17 and oil
The heat exchanger 26 of gas disposal system is docked to access hot-air, and hot air chamber 17 also accesses natural gas；In thermal desorption kiln 14
The gentle road transport line direction of road traffic direction is on the contrary, sludge is advanced from the kiln hood of thermal desorption kiln 14 toward kiln tail, and high-temperature flue gas is from warm
The kiln tail that kiln 14 is desorbed is advanced toward kiln hood；Thermal desorption kiln 14 is additionally provided with clean soil outlet, and clean soil outlet is removed with first
Dirt device 18 docks, and the first deduster 18 docks smoke evacuation system；
Subregion expansion chamber 21 is docked with the mixed gas outlet at 14 kiln hood of thermal desorption kiln to receive in thermal desorption kiln
The material outlet of mixed gas, subregion expansion chamber 21 is docked with sewage sludge feed mechanism, is settled by the reception of sewage sludge feed mechanism
The particulate dust arrived；The oil gas vent of subregion expansion chamber 21 is docked with spray column 23, lower part and the scrubbing tower 24 of spray column 23
Lower part is connected to the structure for conveying to form oil-containing gases, moves oil-containing gases from the bottom up；The mixed gas at 24 top of scrubbing tower
It is docked with burning chamber 25 outlet；Burning chamber 25 and heat exchanger 26 form annular connection, and burning chamber 25 also accesses natural gas；It changes
Hot device 26 is docked with the second deduster 28, and the second deduster 28 docks smoke evacuation system；
Cyclic water tank is equipped in three phase separator 31, cyclic water tank is connected separately with 33 He of spray column spray gun by circulating pump
Scrubbing tower spray gun 34, spray column spray gun 33 access in spray column 23, and the top in scrubbing tower 24 is arranged in scrubbing tower spray gun 34；
The input port of three phase separator 31 is connect with the liquid outlet of 24 bottom of the liquid outlet of 23 bottom of spray column and scrubbing tower respectively, and three
The bottom of phase separator 31 is additionally provided with spoil disposal outlet.
The sewage sludge feed mechanism includes feeding hopper 11, conveyor belt 12 and deflector chute 13, and feeding hopper 11 is set to defeated
The head end of belt 12 is sent, deflector chute 13 is set to below the tail end of conveyor belt 12 for receiving oily sludge, thermal desorption kiln 14
Connect deflector chute 13.
The clean soil outlet of the thermal desorption kiln 14 forms cooling body to clean soil to quenched cooler 15 is connected to,
Quenched cooler 15 docks clean soil storage cavern to chain scraper conveyor 16, chain scraper conveyor 16 is connected to；First deduster 18 with it is quenched
Cooler 15 docks, and forms the dedusting mechanism to the dust-laden exhaust gas after cooling clean soil.
First deduster 18 is docked by the first blower 19 with chimney 20, and the second deduster 28 is by the second blower 29 and is somebody's turn to do
Chimney 20 docks, and pollutant is equipped in the chimney 20 and monitors mechanism on-line, to monitor the pollutants such as dust.
The material outlet of subregion expansion chamber 21 is docked to feed back reamer 22, feed back reamer 22 is connected to conveyor belt 12, is led to
It crosses the dust that feed back reamer 22 collects expansion chamber and inputs thermal desorption kiln 14 again by conveyor belt.
Heat exchanger 26 is connected with air blower 27, by air blower 27 towards heat exchanger input air.
It is equipped in heat exchanger 26 and carries out the heat exchanger tube of heat exchange for burning gas and air, wherein it is logical from shell side to burn gas
It crosses, air passes through from tube side.
It is equipped with screw input feeder in the bottom of three phase separator 31, it will be heavy in three phase separator 31 by screw input feeder
Deposition is discharged and sends thermal desorption kiln 14 back to.
A kind of disposing technique based on aforementioned oily sludge disposal system: oily sludge is packed into feeding hopper 11 by loading machine,
It is delivered to deflector chute 13 through conveyor belt 12, feeds thermal desorption kiln 14；Natural gas and the hot-air from oil gas disposal system exist
It burns in hot air chamber 17, forms high-temperature flue gas and enter thermal desorption kiln 14；Enter the oily sludge of thermal desorption kiln 14 in kiln from kiln hood
Interior rolling is advanced, and is directly contacted with high-temperature flue gas, and the heat in flue gas is absorbed, and temperature increases, and moisture gradually evaporates；It is dewatered
Oily sludge and the higher smoke contacts of temperature, temperature further increases after heat absorption, and oil contained in sludge gradually evaporates；When
After the temperature of sludge is increased to certain phase, clean soil and carbon granules are left in oil all cracking and evaporations；It is anhydrous oil-free clean
The pure land and carbon granules are from kiln tail discharge thermal desorption kiln 14, into quenched cooler 15, after air and water mist cooling are quenched, by carrier bar
Conveyer 16 is sent into clean soil storage cavern and is temporarily stored, and outward transport is waited；
Burn the high-temperature flue gas of formation in hot air chamber 17, after entering thermal desorption kiln 14 from kiln tail, transfers heat to and contains
Greasy dirt, the temperature of itself constantly reduce；Meanwhile the aqueous vapor that is evaporated from oily sludge and oil-gas formation by flue gas,
Mixed gas made of aqueous vapor and air-fuel mixture；After the mixed gas of oily transfers heat to sludge, heat is discharged from kiln hood
Kiln 14 is desorbed, into oil gas disposal system, recycles oil product contained in mixed gas；
Air and water mist quenched cooler 15 clean soil containing carbon granules is carried out cool down it is quenched after, form dust-laden exhaust gas；
The dust-laden exhaust gas come out from quenched cooler 15 enters the first deduster 18, is extracted out after dust separation by the first blower 19, is sent into
Chimney 20 is discharged into atmosphere；Chimney 20 is equipped with on-line computing model, monitors the concentration of emission of dust on-line；It is collected through the first deduster 19
The dust to get off falls into chain scraper conveyor 16, with the clean soil containing carbon granules, is sent into clean soil storage cavern and temporarily stores；
The mixed gas containing oil gas and dust come out from thermal desorption kiln 14 enters subregion expansion chamber 21, subregion expansion chamber
21 are divided into four regions, and mixed gas is successively behind this four regions, and most dust settlings gets off, due to these powder
Dirt contains oily sludge on a small quantity without thermal desorption, therefore cannot function as clean soil；The powder to settle down from subregion expansion chamber 21
Dirt is transmitted back to thermal desorption system by feed back reamer 22 after collecting, and is sent into thermal desorption kiln 14 through conveyor belt together with oily sludge
Processing；
Oil-containing gases after dedusting enter spray column 23, and the recirculated water from oil recovery systems is sprayed through spray column spray gun 33
Enter spray column 23, oil-containing gases temperature under the cooling of shower water reduces, and the oil in gas becomes liquid by gaseous state, partially into
Enter in shower water, and enters oil recovery systems with shower water；It was not being sprayed in the dust that subregion expansion chamber 21 settles down
It is collected to form mud by shower water in journey, and enters oil recovery systems with shower water；
The tiny oil droplets for not entering shower water enter scrubbing tower 24 with oil-containing gases, the recirculated water from oil recovery systems
Washed tower spray gun 34 sprays into scrubbing tower 24；Oil-containing gases are run from bottom to top in scrubbing tower 24, and washing water is in scrubbing tower
Oil-containing gases are washed from top to bottom；After oil-containing gases are washed, most tiny oil droplets enter in washing water, and with washing water
Into oil recovery systems, the outlet of scrubbing tower 24 is equipped with demister, the tiny oil droplets in further gas recovery；
Washed tower 24 wash after mixed gas due to still containing a small amount of tiny oil droplets and non-congealable oil gas, thus cannot
Direct emission need to be for further processing；Mixed gas enters burning chamber 25 from scrubbing tower 24, with the hot-air from heat exchanger 26
Mixing, in the combustion-supporting lower burning of natural gas, the tiny oil droplets contained in mixed gas and fixed gas are thoroughly destroyed by fire；Burn gas
Enter 26 preheated air of heat exchanger from burning chamber 25, is equipped with heat exchanger tube in heat exchanger 26, burns gas and air passes through heat exchanger tube
Heat exchange is carried out, wherein burning gas walks shell side, air walks tube side；Air is blasted the tubulation in heat exchanger 26 by air blower 27,
Air absorbs the heat for burning gas and passing over by tube wall, forms high-temperature hot air；The heat come out from the heat exchange of heat exchanger 26
Air is divided into two-way, enters burning chamber 25 all the way and burns purification mixed gas, and it is combustion-supporting natural in addition to enter thermal desorption system all the way
Gas provides heat for the thermal desorption of oily sludge；
It burns after gas transfers heat to air, is come out from heat exchanger 26 and enter the second deduster 28, dust separation；Through
The gas that burns after dedusting is extracted out by the second blower 29, is discharged into atmosphere by chimney 20；
The shower water and washing water come out from oil gas disposal system flows into three phase separator 31；Shower water and washing water disposition
After oil-contg. smoke, the mud formed in water containing a certain number of oil and a small amount of dust needs to carry out oil, water, mud three-phase separate
From；Grease mud three-phase mixture in three phase separator 31 connects between particle under the collective effect of macromolecule medicament and ultrasonic wave
Continuous high velocity impact, tiny oil droplets increase hundreds times, and flocculation of sludge is at walk；Since the density of oil, water, mud is different, in gravity
Effect is lower to realize three phase separation；The oil product for being suspended in 31 napex of three phase separator is pumped into oil tank storage by oil pump, is deposited on three-phase
The mud of 31 bottom of separator is discharged by the screw input feeder of separator bottom, is sent thermal desorption system back to and is disposed again；
Water after three phase separation imports the cyclic water tank set in three phase separator 31 by guiding device, cyclic water tank with follow
Ring water pump 32 is connected, and water circulating pump 32 extracts water out from cyclic water tank, send to spray column spray gun 33 and scrubbing tower spray gun 34, point
Not Pen Ru oil gas disposal system spray column 23 and scrubbing tower 24 wash oil gas, recycle oil product；The shower water and washing water of oil-containing
Three phase separator 31 is flowed back to again, again three phase separation, be recycled.
The utility model is described in detail above, it is described above, only the preferred embodiment of the utility model and
, when the utility model practical range cannot be limited, i.e., all according to the made equivalent changes and modifications of the application range, it should still belong to this
In utility model covering scope.
Claims (9)
1. a kind of oily sludge disposal system, it is characterised in that: include thermal desorption system, oil gas disposal system and Oil Recovery
System, thermal desorption system are docked with oil gas disposal system, and oil gas disposal system is mutually butted with oil recovery systems；
The thermal desorption system includes thermal desorption kiln, hot air chamber and the first deduster, and the oil gas disposal system includes point
Area's expansion chamber, spray column, scrubbing tower, burning chamber, heat exchanger and the second deduster, the oil recovery systems include three-phase separate
From device, spray column spray gun and scrubbing tower spray gun；
The kiln hood of thermal desorption kiln is docked with sewage sludge feed mechanism, and kiln tail is then docked with hot air chamber；Hot air chamber and oil gas disposal system
Heat exchanger dock to access hot-air, and hot air chamber also accesses natural gas；Road traffic direction in thermal desorption kiln is gentle
Road transport line direction is on the contrary, sludge is advanced from the kiln hood of thermal desorption kiln toward kiln tail, and high-temperature flue gas is from the kiln tail of thermal desorption kiln toward kiln hood
It advances；Thermal desorption kiln is additionally provided with clean soil outlet, and clean soil outlet is docked with the first deduster, the docking of the first deduster
Smoke evacuation system；
Subregion expansion chamber is docked with the mixed gas outlet at thermal desorption kiln kiln hood to receive the mixed gas in thermal desorption kiln,
The material outlet of subregion expansion chamber is docked with sewage sludge feed mechanism, receives the dust object that sedimentation obtains by sewage sludge feed mechanism
Material；The oil gas vent of subregion expansion chamber is docked with spray column, and the lower part of spray column is connected to form oily with the lower part of scrubbing tower
The structure for conveying of body；Mixed gas outlet at the top of scrubbing tower is docked with burning chamber；Burning chamber and heat exchanger form annular connection,
And burning chamber also accesses natural gas；Heat exchanger is docked with the second deduster, and the second deduster docks smoke evacuation system；
Cyclic water tank is equipped in three phase separator, cyclic water tank is connected separately with spray column spray gun by circulating pump and scrubbing tower sprays
Rifle, spray column spray gun access in spray column, and the top in scrubbing tower is arranged in scrubbing tower spray gun；The input port of three phase separator
It is connect respectively with the liquid outlet of the liquid outlet of spray tower bottom and wash tower bottoms, and the bottom of three phase separator is additionally provided with spoil disposal
Outlet.
2. oily sludge disposal system according to claim 1, it is characterised in that: the sewage sludge feed mechanism includes to feed
Hopper, conveyor belt and deflector chute, feeding hopper are set to the head end of conveyor belt, and deflector chute is set under the tail end of conveyor belt
Side connects deflector chute for receiving oily sludge, thermal desorption kiln.
3. oily sludge disposal system according to claim 2, it is characterised in that: the clean soil of the thermal desorption kiln is discharged
Mouthful cooling body to clean soil is formed to being connected to quenched cooler, quenched cooler is to being connected to chain scraper conveyor, carrier bar conveying
Machine docks clean soil storage cavern；First deduster is docked with quenched cooler, forms removing to the dust-laden exhaust gas after cooling clean soil
Dirt mechanism.
4. oily sludge disposal system according to claim 3, it is characterised in that: the first deduster by the first blower with
Chimney docking, the second deduster are docked by the second blower with the chimney, and pollutant is equipped in the chimney and monitors mechanism on-line.
5. oily sludge disposal system according to claim 4, it is characterised in that: the material outlet of subregion expansion chamber docks
Have feed back reamer, feed back reamer is docked with conveyor belt, the dust collected expansion chamber by feed back reamer again by
Conveyor belt inputs thermal desorption kiln.
6. oily sludge disposal system according to claim 5, it is characterised in that: heat exchanger is connected with air blower.
7. oily sludge disposal system according to claim 6, it is characterised in that: be equipped in heat exchanger for burn gas and
Air carries out the heat exchanger tube of heat exchange, passes through wherein burning gas from shell side, air passes through from tube side.
8. oily sludge disposal system according to claim 7, it is characterised in that: be equipped with spiral shell in the bottom of three phase separator
Feeder is revolved, the sedimentary clay in three phase separator is discharged by screw input feeder and sends thermal desorption kiln back to.
9. oily sludge disposal system according to claim 8, it is characterised in that: subregion expansion chamber is divided into four regions,
Mixed gas successively passes through this four regions and realizes dust settling.
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| CN201822276812.5U CN209368098U (en) | 2018-12-28 | 2018-12-28 | A kind of oily sludge disposal system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109455899A (en) * | 2018-12-28 | 2019-03-12 | 广州绿泰环境科技有限公司 | A kind of oily sludge disposal system and its disposing technique |
| CN113680784A (en) * | 2020-05-19 | 2021-11-23 | 中国石油天然气集团有限公司 | Oily solid waste thermal desorption system and process capable of efficiently utilizing heat energy |
-
2018
- 2018-12-28 CN CN201822276812.5U patent/CN209368098U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109455899A (en) * | 2018-12-28 | 2019-03-12 | 广州绿泰环境科技有限公司 | A kind of oily sludge disposal system and its disposing technique |
| CN113680784A (en) * | 2020-05-19 | 2021-11-23 | 中国石油天然气集团有限公司 | Oily solid waste thermal desorption system and process capable of efficiently utilizing heat energy |
| CN113680784B (en) * | 2020-05-19 | 2023-02-07 | 中国石油天然气集团有限公司 | Oily solid waste thermal desorption system and process capable of efficiently utilizing heat energy |
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