CN203382711U - Three sludge treatment and big steam blowing combined recovery device for oil refinery - Google Patents

Three sludge treatment and big steam blowing combined recovery device for oil refinery Download PDF

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Publication number
CN203382711U
CN203382711U CN201320461051.5U CN201320461051U CN203382711U CN 203382711 U CN203382711 U CN 203382711U CN 201320461051 U CN201320461051 U CN 201320461051U CN 203382711 U CN203382711 U CN 203382711U
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China
Prior art keywords
outlet
mud
sludge
steam
coke
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Expired - Lifetime
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CN201320461051.5U
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Chinese (zh)
Inventor
孙虎良
庄恒亚
张体木
王思珏
朱渝
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SHANGHAI YOUHUA SYSTEM INTEGRATION TECHNOLOGY Co Ltd
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SHANGHAI YOUHUA SYSTEM INTEGRATION TECHNOLOGY Co Ltd
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Abstract

The utility model relates to the technical field of chemical industry and specifically relates to a three sludge treatment and big steam blowing combined recovery device for an oil refinery. The device comprises a coke tower, a heating furnace, a sewage treatment device, a three sludge conveying pump, a three sludge tank and an atomizer, and is characterized in that an outlet of the sewage treatment device is connected with an inlet of the three sludge tank, an outlet of the three sludge tank and an outlet of a water pipe network are combined and then connected with an inlet of the three sludge conveying pump, an outlet of the three sludge conveying pump adopts an outlet pipeline for connecting with a three sludge inlet of the atomizer, an outlet of a steam pipe network is connected with a steam inlet of the atomizer, and an outlet of the atomizer and a coked oil outlet of the heating furnace are respectively connected into an inlet main pipe of the coke tower. Compared with the prior art, the device provided by the utility model can degrade partial heavy oil and enable oil gas to enter an emptying system for recovery by utilizing three sludge from a sewage treatment device to partially replace steam as a big steam blowing medium of the coke tower and utilizing residual heat in coke to evaporate out water and light oil components in the three sludge; on the other hand, the safety performance is improved.

Description

A kind of refinery three mud are processed and the combined recovery device steamed out greatly
Technical field
The utility model relates to chemical technology field, and specifically a kind of refinery three mud are processed and the combined recovery device steamed out greatly.
Background technology
Three mud of refinery refer to following three kinds of materials that sewage occurs in water-freeing arrangement: one is the greasy filth at the bottom of the draining oil trap, and it two is sewage work's suspended particle, and it three is that in biochemical treatment plant, oil is the active sludge of microorganism formation.These three kinds of sludge treatment are difficulty relatively, at present two kinds of processing modes of main existence: the one, and as incinerator fuel, processing cost is high, and in three mud, moisture content is high, unstable, is difficult to trouble-free burning, makes the incinerator cisco unity malfunction; The 2nd, adopt the mode of direct landfill to process, but the objectionable impurities contained in three mud and not labile crude oil meeting diffusion cause serious pollution to surrounding soil, water, air.From economically or all allow enterprise bear larger pressure environmental protection.
Along with the raising of national environmental protection laws and regulations requirement, the law enforcement for environmental protection dynamics continues to increase, and tackles three mud and carries out harmless treatment.
Delayed coking is by the residual oil in oil refining process, after process furnace 8 heating, transfers to rapidly in coke drum 1, makes residual oil at the interior Pintsch process of coke drum 1 and produces lightweight oil and the process of petroleum coke.The cold burnt process of coke drum is that the petroleum coke of generation is cooled to 45 ℃ of left and right by 420 ℃ of left and right; Cold burnt process is divided into: littlely steam out, steam out greatly, little feedwater and four steps that feed water greatly.In traditional technology, steaming out greatly is generally to utilize in steam pipe system 7 steam as heat-eliminating medium, referring to Fig. 1.Residual oil in coke drum is cooled to 330 ℃ of left and right from 420 ℃ of left and right, need to consume 1.0Mpag steam, every tower consumes quantity of steam and is about 30 tons, with the switching flow of 2 stove 4 tower systems of general refinery, 150 times/the tower that goes into operation the whole year calculates, and 4 annual quantity of steams that consume of tower are 1.8 ten thousand tons of left and right.And this blocked operation is periodical operation, larger on the balance of steam impact of full factory.
In traditional technology, steam out greatly and do not use water as heat-eliminating medium with vapour, be mainly because excessive by water-cooled Jiao's cooling rate, can produce larger Thermal Stress to the tower wall, thereby affect the work-ing life of coke drum.
In recent years, many refinerys have carried out the trial of the full modify-water that steams out greatly, and from running condition, appearance burned in various degree causes coke drum to rock the situation that with coke drum walls quenching causes the coke drum walls bulge.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, by the process pipe flow scheme improvements, utilizes refinery three mud partly to substitute steam as the coke drum medium that steams out greatly.
For achieving the above object, designing a kind of refinery three mud processes and the combined recovery device steamed out greatly, comprise coke drum, process furnace, waste disposal plant, three mud transferpumps, three mud tanks, spraying gun, it is characterized in that: the outlet of waste disposal plant connects the import of three mud tanks, the outlet of three mud tanks and the import that is connected three mud transferpumps after the outlet of grid pipe, three mud carry pump outlet to adopt outlet conduit to connect three mud imports of spraying gun, the outlet of steam pipe system connects the steam inlet of spraying gun, the outlet of spraying gun, the coking oil export of process furnace accesses respectively in the intake header of coke drum.
Outlet conduit adopts an arm to connect another import of three mud tanks, and described arm is provided with valve, after the non-purification wind outlet of non-purifying wind pipe net and coke cooling water pump outlet pipe, connects the outlet conduit between arm and three mud transferpumps.
The two paths of signals end of PLC Controlling System connects respectively the output flow control signal end of steam pipe system and the output flow control signal end of three mud transferpumps.
The utility model compared with the existing technology, spraying gun, three mud transferpumps, three mud tanks and PLC Controlling System have been increased, on the one hand, be used to three mud from waste disposal plant and partly substitute steam as the coke drum medium that steams out greatly, utilize the coke waste heat that the moisture content in three mud and light oil constituents are steamed, the degraded of part heavy oil, oil gas enters blowdown system and is reclaimed, most of heavy oil component and solid impurity in three mud are stayed in coke drum, during decoking, with coke, enter Jiao Chizhong; Save the steam of a part as the medium that steams out greatly simultaneously; On the other hand, with the at present full modify-water coking flow process that steams out greatly, compare, adopt the water of micron-sized superfine small droplets state, the problem of having avoided the water vapor process to expand and cause, thereby the flow process that makes to steam out greatly steams out greatly in the effect of flow process substantially reaching tradition, also make that safety performance is improved, extended the work-ing life of coke drum.
The accompanying drawing explanation
The connection diagram that Fig. 1 steams out greatly for existing coking.
Fig. 2 is connection diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
Referring to Fig. 2, the utility model has mainly increased spraying gun 2, three mud transferpumps 3, three mud tanks 4 etc. on the basis of existing system structure, the outlet of waste disposal plant 41 connects the import of three mud tanks 4, be connected the import of three mud transferpumps 3 after the outlet of the outlet of three mud tanks 4 and grid 6 pipe, the outlet of three mud transferpumps 3 adopts outlet conduit to connect three mud imports of spraying gun 2, the outlet of steam pipe system 7 connects the steam inlet of spraying gun 2, and the coking oil export of the outlet of spraying gun 2, process furnace 8 accesses respectively in the intake header of coke drum 1.
The two paths of signals end of PLC Controlling System 5 connects respectively the output flow control signal end of steam pipe system 7 and the output flow control signal end of three mud transferpumps 3.Entering the amount of three mud of spraying gun 2 and the amount of steam is regulated by the PLC Controlling System, three mud are by after spraying gun 2 atomizations, spray in coke tower 1 with micron-sized drop state, can overcome two kinds of rough sledding: the first, can overcome the phenomenon that in coke drum, burned causes coke drum to rock; The second, can overcome the problem of coke drum quenching, cause the situation of coke drum walls bubbling.
Pass through the PLC Controlling System in the present invention simultaneously, can form three safety interlock systems and improve security, main as follows: first, top of coke tower pressure arranges interlocking system, the three mud control valves that enter spraying gun 2 when the tower top pressure of coke drum 1 reaches threshold value are closed, and the steam control valve that enters spraying gun 2 is regulated according to manufacturer's actually operating situation.The second, the tower wall temperature of coke drum falls interlocking system is set, and when the tower wall temperature drop rate of coke drum reaches set(ting)value, the three mud control valves that enter spraying gun 2 are closed, and the steam control valve that enters spraying gun 2 is regulated according to manufacturer's actually operating situation.The 3rd, the tower top temperature of coke drum arranges interlocking system, when the tower top temperature of coke drum reaches set(ting)value, the three mud control valves that enter spraying gun 2 are closed, the steam control valve that enters spraying gun 2 is opened, and quantity of steam is controlled at 1~8t/h, and the steaming out time is controlled at 10~30min.
The proportioning of general three mud and steam changes with the different steps steamed out greatly.When coking steams out greatly the initial stage, the flowrate proportioning of steam and three mud is controlled at 6~12:1; When coking steams out greatly latter stage, the flowrate proportioning of steam and three mud is controlled at 1:0.5~2; Coking steams out greatly initial stage to latter stage during this period of time, and the flowrate proportioning of steam and three mud progressively reduces, and the reduction amplitude is adjusted with the temperature drop amplitude, and the temperature drop amplitude is controlled at 15~60 ℃/h.
In addition, outlet conduit also can adopt an arm to connect another import of three mud tanks 4, described arm is provided with valve, after the non-purification wind outlet of non-purifying wind pipe net 9 and the outlet of coke cooling water pump 10 pipe, connects the outlet conduit between arm and three mud transferpumps 3.When coke drum 1 stops annotating three mud, can adopt the coke cooling water exported from coke cooling water pump 10 by three mud back flushing to three mud tanks 4 like this; And if adopt winter coke cooling water to rinse the three mud pipelines blocking pipe that can freeze, at this moment can adopt the non-purification wind from non-purifying wind pipe net 9 that coke cooling water is purged to three mud tanks 4, prevent three mud blocking pipes remaining in three mud pipelines.

Claims (3)

1. refinery three mud are processed and the combined recovery device steamed out greatly, comprise coke drum, process furnace, waste disposal plant, three mud transferpumps, three mud tanks, spraying gun, it is characterized in that: the outlet of waste disposal plant (41) connects the import of three mud tanks (4), be connected the import of three mud transferpumps (3) after the outlet of the outlet of three mud tanks (4) and grid (6) pipe, the outlet of three mud transferpumps (3) adopts outlet conduit to connect three mud imports of spraying gun (2), the outlet of steam pipe system (7) connects the steam inlet of spraying gun (2), the outlet of spraying gun (2), the coking oil export of process furnace (8) accesses respectively in the intake header of coke drum (1).
2. a kind of refinery three mud as claimed in claim 1 are processed and the combined recovery device steamed out greatly, it is characterized in that: outlet conduit adopts an arm to connect another import of three mud tanks (4), described arm is provided with valve, after the non-purification wind outlet of non-purifying wind pipe net (9) and the outlet of coke cooling water pump (10) pipe, connects and is positioned at the outlet conduit between arm and three mud transferpumps (3).
3. a kind of refinery three mud as claimed in claim 1 are processed and the combined recovery device steamed out greatly, and it is characterized in that: the two paths of signals end of PLC Controlling System (5) connects respectively the output flow control signal end of steam pipe system (7) and the output flow control signal end of three dredge pumps (3).
CN201320461051.5U 2013-07-30 2013-07-30 Three sludge treatment and big steam blowing combined recovery device for oil refinery Expired - Lifetime CN203382711U (en)

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CN201320461051.5U CN203382711U (en) 2013-07-30 2013-07-30 Three sludge treatment and big steam blowing combined recovery device for oil refinery

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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106348553A (en) * 2016-11-01 2017-01-25 天津莱特化工有限公司 A set of three-sludge recycling treatment technology
CN107541237A (en) * 2017-10-04 2018-01-05 山东胜星化工有限公司 A kind of aqueous dirty oil recycling device
CN108892287A (en) * 2018-08-17 2018-11-27 宝钢工程技术集团有限公司 Wastewater treatment method and system
CN109401769A (en) * 2018-12-11 2019-03-01 上海思九科技发展有限公司 A kind of innocuity disposal system and method for the aqueous waste residue of oil-containing
CN110407422A (en) * 2019-07-24 2019-11-05 湖南省计量检测研究院 A kind of recycling processing method of petrochemical industry greasy filth
CN111925039A (en) * 2020-07-31 2020-11-13 中国石化北海炼化有限责任公司 High-concentration degradation-resistant wastewater treatment device and treatment process

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106348553A (en) * 2016-11-01 2017-01-25 天津莱特化工有限公司 A set of three-sludge recycling treatment technology
CN106348553B (en) * 2016-11-01 2019-07-23 天津莱特化工有限公司 A kind of set of three mud recovery processing technique method
CN107541237A (en) * 2017-10-04 2018-01-05 山东胜星化工有限公司 A kind of aqueous dirty oil recycling device
CN108892287A (en) * 2018-08-17 2018-11-27 宝钢工程技术集团有限公司 Wastewater treatment method and system
CN109401769A (en) * 2018-12-11 2019-03-01 上海思九科技发展有限公司 A kind of innocuity disposal system and method for the aqueous waste residue of oil-containing
CN110407422A (en) * 2019-07-24 2019-11-05 湖南省计量检测研究院 A kind of recycling processing method of petrochemical industry greasy filth
CN111925039A (en) * 2020-07-31 2020-11-13 中国石化北海炼化有限责任公司 High-concentration degradation-resistant wastewater treatment device and treatment process

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Granted publication date: 20140108