CN203411452U - Sludge carbonization and carbon recovery device for oil refinery - Google Patents
Sludge carbonization and carbon recovery device for oil refinery Download PDFInfo
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- CN203411452U CN203411452U CN201320497216.4U CN201320497216U CN203411452U CN 203411452 U CN203411452 U CN 203411452U CN 201320497216 U CN201320497216 U CN 201320497216U CN 203411452 U CN203411452 U CN 203411452U
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Abstract
The utility model relates to a sludge carbonization and carbon recovery device for an oil refinery. According to the sludge carbonization and carbon recovery device for the oil refinery, a front treatment unit is an external-heating dryer (1) which is provided with a dryer jacket (2); a carbonization unit is an external-heating rotary carbonization furnace (3) which is provided with a rotary carbonization furnace jacket (4); a condensation and oil-water separation unit comprises a flue gas gathering pipeline (5), a spray tower (6) and an oil-water separator (7), wherein a gas-phase product is introduced into the spray tower (6) by the flue gas gathering pipeline (5), and the oil-water separation on carbonized liquid obtained after spraying is realized after the carbonized liquid passes through the oil-water separator (7); a combustible gas utilization unit comprises a combustor (8) and an exhaust gas purifier (9), wherein the combustor (8) is communicated with the dryer jacket (2) and the rotary carbonization furnace jacket (4) through flue gas transportation pipelines (15), and exhaust gas from the combustor (8) passes through the exhaust gas purifier (9) and then is discharged. The sludge carbonization and carbon recovery device has the advantages that the oil recovery ratio is high and the process operation is stable and reliable.
Description
Technical field
The utility model belongs to technical field of sludge treatment, relates in particular to the device that a kind of refinery sludge carbonization is processed and charcoal reclaims.
Background technology
In oil factory wastewater treatment process, inevitably produce a large amount of oil trap mud, dissolved air floatation scum silica frost and residual active sludge etc., they are referred to as three-sludge", and the feature of this class oily sludge is that water ratio is higher." three mud " innoxious process for treating of broad research, mainly contains burning, biological degradation, solvent extraction and send coking processing etc., yet all there is many deficiencies at aspects such as economy, technology and equipment operation maintenances in these technology both at home and abroad.Domestic refinery generally adopts the method for thickner-mechanical dehydration-burning to process refinery mud, and the expense of burning mud per ton is higher, and equipment failure rate is higher.In recent years, some refinery is directly sent the mud after mechanical dehydration into coker, as quenching oil or as anxious water, uses.But this method has certain limitation, one of reason is in mud, to contain large water gaging, easily coking operation is exerted an influence, and the processing power of coking is low, three mud can not be sold out.For many years, domestic never a technology and economically viable " three mud " treatment process and device.
In recent years, solid waste pyrolysis processing is as a kind of technology of new development, and its advantage and operability have received many investigators' concern.Pyrolysis claims again destructive distillation, thermolysis or charing.Pyrolyzing sludge is processed the process that refers to the organism thermal degradation under oxygen barrier condition in mud, and this process produces three kinds of phase materials, and gas phase be take hydrogen, methane, carbon monoxide, carbonic acid gas as main, and its component and ratio depend on the composition of mud; Liquid phase be take fuel oil under normal temperature, water as main, still has the volatile liquids such as acetic acid, acetone and methyl alcohol; Solid phase is carbon residue and original mineral substance.
Chinese invention patent prospectus CN101113067A discloses a kind of recycling processing method of oily sludge, comprise oily sludge is sent in airtight dry pyrolyzer and carried out pyrolysis processing, pyrolysis processing is reacted 1～5 hour under 200～600 ℃ of conditions, refiltered oil, gas, water.
Chinese invention patent prospectus CN101759339A discloses a kind of reclamation treatment method of oil field tank bottom oil sludge, comprises first oil field tank bottom oil sludge is carried out to loose modification, and then carry out pyrolysis, obtains solid residue and gaseous product; Described gaseous product obtains pyrolysis oil and inflammable gas after condensation; Described pyrolysis liquid is carried out to oil, water separation, obtain pyrolysis oil.Contriver's reaction according to this patent: this scheme is after operation for some time, and processing efficiency is low, even causes the paralysis of whole system.
Utility model content
The purpose of this utility model is for the deficiencies in the prior art, and the device that a kind of refinery sludge carbonization is processed and charcoal reclaims is provided, and this device is stable, and Oil recovery rate is high.
The scheme that the utility model solve the technical problem is:
A sludge resource processing apparatus, comprises pre-process unit, charing unit, condensation and oily water separation unit, combustible gas range site,
Described pre-process unit is external-heat drier, and this drying machine is provided with drying machine chuck;
Described charing unit is external-heat rotary carbide furnace, and rotary carbide furnace is provided with rotary carbide furnace chuck;
Described condensation and oily water separation unit comprise flue gas collection pipeline, spray column, water-and-oil separator, flue gas is collected pipeline and is introduced spray column for the gas-phase product that pre-process step and charing step are produced, and that the pyrolysis liquid obtaining after spray is realized after water-and-oil separator is oily, water is separated;
Described combustible gas range site comprises burner and exhaust purifier, burner is communicated with by flue gas delivery pipe road with drying machine chuck, rotary carbide furnace chuck, the heat that burner produces can pass to drying machine chuck and rotary carbide furnace chuck, and burner tail gas out discharges after via exhaust purifier.
Chinese invention patent prospectus CN101759339A is to also oil field tank bottom oil sludge being carried out to pre-process in reclamation treatment method of oil field tank bottom oil sludge, and the oil field tank bottom oil sludge being about to after natural air drying is heated to 100～200 ℃ in well heater.And the application's pre-process step takes full advantage of the moisture in refinery mud, the in the situation that of isolated extraneous air, by thermal source, oily sludge is carried out to external-heat and be heated to 160～180 ℃, moisture in mud is also taken oil content out of in the process of a large amount of evaporations, by pipeline, be directed to condensing works, can not only prevent that oil content is dispersed in atmosphere pollutes, can also make oil content be reclaimed fully, the more important thing is the working load that can greatly reduce charing step, be conducive to the steady running of a whole set of technique.
Chinese invention patent prospectus CN101113067A, in the recycling processing method of oily sludge, directly sends into water ratio in airtight dry pyrolyzer and carries out pyrolysis processing with interior oily sludge 80%.And the utility model enters the oily sludge water ratio of charing step below 20%, not only the oil content in oily sludge has been pulled away part, and oily sludge is constantly stirred in the boiling of moisture during pre-process, the oil content that makes to enter the oily sludge of charing step distributes very evenly, so the heat-up rate of oily sludge is very fast, charing rate is very fast, and reduced in carbonization process and because moisture content is high, caused the unsettled risk of carbonization temperature, improved the stability of carbonization process.
The utility model takes the mode of water spray to carry out condensation to the gas-phase product producing in pre-process step and charing step, the main consideration for two aspects: the one, the gas-phase product moisture content that this aspect is collected is higher, and spray water can fully blend and complete rapidly heat exchange with steam; The 2nd, water spray can be removed the flue dust in gas-phase product simultaneously, plays the effect that purifies noncondensable gas, and not only noncondensable gas is more abundant when burning, and can prevent that flue dust from blocking pipeline, guarantees that the pipeline of whole plant is unobstructed.
As improvement, this device also comprises back-mixing feed bin, and before back-mixing feed bin is positioned at external-heat drier, the solid residue part backing up that charing can be produced, to this back-mixing feed bin, enters external-heat drier after solid residue is mixed with oily sludge.
This scheme can utilize the waste heat of solid residue to be fully used, and solid residue along with moisture rolling, can accelerate moisture and oil content to separate out at 160～180 ℃ of temperature; On the other hand, because oil content in solid residue is few, it can play the effect that reduces oleaginousness in oily sludge after mixing in undressed oily sludge, and while being conducive to charing, oil content fully separates out.
As improvement, this device comprises transfer feed bin, and transfer feed bin is between external-heat drier and external-heat rotary carbide furnace.
As improvement, described external-heat drier, external-heat rotary carbide furnace, burner are provided with auxiliary burner.
A thermal source part in pre-process and charing step provides after being burnt by noncondensable gas, and when thermal source is inadequate, the auxiliary thermal source that can open separately carries out heat supply.Combustible gas utilizes in step, some composition of noncondensable gas may not sufficient combustion, can shine into tail gas can not qualified discharge, now combustible gas utilizes the auxiliary thermal source in step can burn some agricultural wastes as auxiliary thermal source, impel the abundant burning of noncondensable gas, can certainly use combustion gas as its auxiliary thermal source.
Compared with prior art, the present invention has following beneficial effect:
(1) the present invention adopts two-step type processing mode, and a minute secondary carries out mummification and hydrocarbon extraction to oily sludge, has reduced the incidence of technique controlling difficulty and plant failure rate, and a whole set of process operation is efficient, stable.
(2) drying machine, rotary carbide furnace and burner are provided with auxiliary burner, during device operation, the high-temperature flue gas that burner produces is to drying machine, rotary carbide furnace energy supply, when the energy providing when burner cannot meet the heat demand of drying machine and rotary carbide furnace, or the concentration of the inflammable gas of burner inside is too low when cannot realize spontaneous combustion and maintaining the temperature in burner, auxiliary burner will be opened, to guarantee burner, the normal working temperature of drying machine and rotary carbide furnace, ensure burner, the normal operation of external-heat drier and rotary carbide furnace, device stability is high.
(3) in pre-process and charing treating processes, the gaseous substance producing enters condensation and oily water separation unit, it is carried out to dedusting and condensation process, a large amount of water vapour and dust have been removed, obtain relatively pure noncondensable gas, noncondensable gas enters combustible gas range site and fully burns, and burning produces heat energy supply and supports pre-process and charing treating processes, tail gas after purifying treatment dust content and blackness all up to standard.The utility model complete charing gas-phase product innoxious in, also realize the energy utilization of carbonizing production, carbonizing production harmless treatment is effective, realizes energy recycling, cuts operating costs.
In sum, the utlity model has that Oil recovery rate is high, process operation is reliable and stable, the advantage of energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is the structural representation of the device of refinery sludge carbonization processing of the present invention and charcoal recovery;
In figure: 1, external-heat drier; 2, drying machine chuck; 3, external-heat rotary carbide furnace; 4, rotary carbide furnace chuck; 5, flue gas is collected pipeline; 6, spray column; 7, water-and-oil separator; 8, burner; 9, exhaust purifier; 10, back-mixing feed bin; 11, the rotary airduct machine of transfer feed bin; 12, auxiliary burner; 13, blower fan; 14, carbonization residue container; 15, flue gas delivery pipe road.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described: as shown in Figure 1, the device that a kind of refinery sludge carbonization is processed and charcoal reclaims, comprise pre-process unit, charing unit, condensation and oily water separation unit, combustible gas range site, described pre-process unit is external-heat drier 1, and this drying machine is provided with drying machine chuck 2; Described charing unit is external-heat rotary carbide furnace 3, and rotary carbide furnace is provided with rotary carbide furnace chuck 4; Described condensation and oily water separation unit comprise flue gas collection pipeline 5, spray column 6, water-and-oil separator 7, flue gas is collected pipeline 5 and is introduced spray column 6 for the gas-phase product that pre-process step and charing step are produced, the charing liquid obtaining after spray is realized oil after water-and-oil separator 7, water is separated, and spray column 6 combustible gas is out delivered to burner 8 through blower fan 13; Described combustible gas range site comprises burner 8 and exhaust purifier 9, burner 8 is communicated with by flue gas delivery pipe road 15 with drying machine chuck 2, rotary carbide furnace chuck 4, the heat that burner 8 produces can pass to drying machine chuck 2 and rotary carbide furnace chuck 4, flue gas arrives exhaust purifier 9 by drying machine chuck 2 and the rear remittance of rotary carbide furnace chuck 4, burner 8 tail gas is out via the rear discharge of exhaust purifier 9, and exhaust purifier 9 is also equipped with blower fan 13.Before external-heat drier, be provided with back-mixing feed bin 10, the solid residue part backing up that charing can be produced is to this back-mixing feed bin 10, after solid residue is mixed with oily sludge, enter external-heat drier 1, after other solid residues are cooling, seal carbonization residue container 14 up for safekeeping.Between external-heat drier 1 and external-heat rotary carbide furnace 3, be transfer feed bin 11, transfer feed bin 11 can quantitatively be delivered to external-heat rotary carbide furnace 3 by external-heat drier 1 oily sludge out according to the practical operation situation of external-heat rotary carbide furnace 3.External-heat drier 1, external-heat rotary carbide furnace 3, burner 8 are provided with auxiliary burner 12.
(1) pre-process: oily sludge enters in back-mixing feed bin 10, adds after the solid residue that charing produces, and is sent to the mummification that heats up in external-heat drier 1, and the interior temperature of external-heat drier 1 is 160 ℃, and oily sludge water ratio is down to 10%.
(2) charing: the dewatered sludge of water ratio 10% enters in external-heat rotary carbide furnace and carries out charing, and carbonization temperature is 600 ℃, stops 45min.After charing finishes, after the solid residue of discharge is cooling, be collected in carbonization residue container 14;
(3) condensation and oily water separation: the gas-phase product that pre-process and carbonization process produce is introduced spray column 6 and carried out dedusting, condensation process.After spray column 6 is processed, obtain charing liquid and noncondensable gas, utilize water-and-oil separator 7 to carry out oil, water is separated, obtains charing oil, isolated water enters oil-field water treatment system (in figure for illustrating) simultaneously; Noncondensable gas is introduced burner 8 burn processing by blower fan 13, and temperature of combustion is 1100 ℃;
(4) exhaust emissions: noncondensable gas, in burner 8 internal combustion, produces high-temperature flue gas, and high-temperature flue gas divides two-way to pass in drying machine chuck 2 and rotary carbide furnace chuck 4, finally enters tail gas purification tower 9, discharges after purifying treatment.
Through aforesaid method and device to refinery oil trap sludge handling after detected result as shown in table 1:
Detected result after table 1 refinery oil trap sludge handling
(1) pre-process: oily sludge enters in back-mixing feed bin 10, adds after the solid residue that charing produces, and is sent to the mummification that heats up in external-heat drier 1, and the interior temperature of external-heat drier 1 is 160 ℃, and oily sludge water ratio is down to 15%.
(2) charing: the dewatered sludge of water ratio 15% enters in external-heat rotary carbide furnace and carries out charing, and carbonization temperature is 650 ℃, stops 30min.After charing finishes, after the solid residue of discharge is cooling, be collected in carbonization residue container 14;
(3) condensation and oily water separation: the gas-phase product that pre-process and carbonization process produce is introduced spray column 6 and carried out dedusting, condensation process.After spray column 6 is processed, obtain charing liquid and noncondensable gas, utilize water-and-oil separator 7 to carry out oil, water is separated, obtains charing oil, isolated water enters oil-field water treatment system (in figure for illustrating) simultaneously; Noncondensable gas is introduced burner 8 burn processing by blower fan 13, and temperature of combustion is 1200 ℃;
(4) exhaust emissions: noncondensable gas, in burner 8 internal combustion, produces high-temperature flue gas, and high-temperature flue gas divides two-way to pass in drying machine chuck 2 and rotary carbide furnace chuck 4, finally enters tail gas purification tower 9, discharges after purifying treatment.
After above-mentioned steps is processed flotation cell scum silica frost, detected result is as shown in table 2:
Table 2 flotation cell scum silica frost is processed rear detected result
(1) pre-process: oily sludge enters in back-mixing feed bin 10, adds after the solid residue that charing produces, and is sent to the mummification that heats up in external-heat drier 1, and the interior temperature of external-heat drier 1 is 170 ℃, and oily sludge water ratio is down to 20%.
(2) charing: the dewatered sludge of water ratio 20% enters in external-heat rotary carbide furnace and carries out charing, and carbonization temperature is 620 ℃, stops 40min.After charing finishes, after the solid residue of discharge is cooling, be collected in carbonization residue container 14;
(3) condensation and oily water separation: the gas-phase product that pre-process and carbonization process produce is introduced spray column 6 and carried out dedusting, condensation process.After spray column 6 is processed, obtain charing liquid and noncondensable gas, utilize water-and-oil separator 7 to carry out oil, water is separated, obtains charing oil, isolated water enters oil-field water treatment system (in figure for illustrating) simultaneously; Noncondensable gas is introduced burner 8 burn processing by blower fan 13, and temperature of combustion is 1200 ℃;
(4) exhaust emissions: noncondensable gas, in burner 8 internal combustion, produces high-temperature flue gas, and high-temperature flue gas divides two-way to pass in drying machine chuck 2 and rotary carbide furnace chuck 4, finally enters tail gas purification tower 9, discharges after purifying treatment.
After above-mentioned steps is processed remaining activity mud, detected result is as shown in table 3:
Table 3 residual active sludge is processed rear detected result
By table 1, the data of table 2 and table 3 can find out that oily sludge at the bottom of refinery oil trap, flotation cell scum silica frost and remaining activity mud crude oil after the method and device are processed obtains efficient recovery, the oil length of solid residue is low, meet the requirement of pollutent control criterion GB4284-84 in agricultural mud, and the atmospheric polluting material sulfur dioxide concentration value in tail gas and carbon monoxide (NO
x) concentration value, be all better than the sulfur dioxide emissions limit value 300mg/m that China < < dangerous waste incineration pollutes control criterion > > regulation
3and carbon monoxide (NO
x) emission concentration limits 500mg/m
3.
In sum, the utility model is really realized innoxious, resource utilization, minimizing, the stabilization treatment of three-sludge".
Claims (4)
1. the device that refinery sludge carbonization is processed and charcoal reclaims, comprises pre-process unit, charing unit, condensation and oily water separation unit, combustible gas range site, it is characterized in that:
Described pre-process unit is external-heat drier (1), and this drying machine is provided with drying machine chuck (2);
Described charing unit is external-heat rotary carbide furnace (3), and rotary carbide furnace is provided with rotary carbide furnace chuck (4);
Described condensation and oily water separation unit comprise flue gas collection pipeline (5), spray column (6), water-and-oil separator (7), flue gas is collected pipeline (5) and is introduced spray column (6) for the gas-phase product that pre-process step and charing step are produced, and that the charing liquid obtaining after spray is realized through water-and-oil separator (7) after is oily, water is separated;
Described combustible gas range site comprises burner (8) and exhaust purifier (9), burner (8) is communicated with by flue gas delivery pipe road (15) with drying machine chuck (2), rotary carbide furnace chuck (4), the heat that burner (8) produces can pass to drying machine chuck (2) and rotary carbide furnace chuck (4), and burner (8) tail gas is out via discharge after exhaust purifier (9).
2. the device that a kind of refinery sludge carbonization as claimed in claim 1 is processed and charcoal reclaims, is characterized in that: this device also comprises back-mixing feed bin (10), back-mixing feed bin (10) is positioned at external-heat drier (1) before.
3. the device that a kind of refinery sludge carbonization as claimed in claim 1 is processed and charcoal reclaims, is characterized in that: this device comprises transfer feed bin (11), transfer feed bin (11) is positioned between external-heat drier (1) and external-heat rotary carbide furnace (3).
4. the device that a kind of refinery sludge carbonization as claimed in claim 1 is processed and charcoal reclaims, is characterized in that: described external-heat drier (1), external-heat rotary carbide furnace (3), burner (8) are provided with auxiliary burner (12).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320497216.4U CN203411452U (en) | 2013-08-14 | 2013-08-14 | Sludge carbonization and carbon recovery device for oil refinery |
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| CN201320497216.4U CN203411452U (en) | 2013-08-14 | 2013-08-14 | Sludge carbonization and carbon recovery device for oil refinery |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103449701A (en) * | 2013-08-14 | 2013-12-18 | 湖州宜可欧环保科技有限公司 | Method and device for refinery sludge carbonization treatment and carbon recovery |
| CN106082580A (en) * | 2016-08-12 | 2016-11-09 | 东华大学 | A kind of greasy filth is dried and the close-coupled processing Zero emission device of carbonization |
| CN109626695A (en) * | 2019-01-25 | 2019-04-16 | 北京水裕清环保科技有限公司 | The processing system and method for waste water evaporation technology mother liquor |
-
2013
- 2013-08-14 CN CN201320497216.4U patent/CN203411452U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103449701A (en) * | 2013-08-14 | 2013-12-18 | 湖州宜可欧环保科技有限公司 | Method and device for refinery sludge carbonization treatment and carbon recovery |
| CN106082580A (en) * | 2016-08-12 | 2016-11-09 | 东华大学 | A kind of greasy filth is dried and the close-coupled processing Zero emission device of carbonization |
| CN109626695A (en) * | 2019-01-25 | 2019-04-16 | 北京水裕清环保科技有限公司 | The processing system and method for waste water evaporation technology mother liquor |
| CN109626695B (en) * | 2019-01-25 | 2021-10-01 | 北京水裕清环保科技有限公司 | System and method for treating mother liquor of wastewater evaporation process |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 313000, Wuxing District, Zhejiang City, Huzhou Province eight Li Zhen, Wuxing science and Technology Pioneer Park 8, 3 north Patentee after: ZHE JIANG ECO ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: 313000, Wuxing District, Zhejiang City, Huzhou Province eight Li Zhen, Wuxing science and Technology Pioneer Park 8, 3 north Patentee before: HUZHOU ECO ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20140129 |