CN202398261U - Multiple-absorption-tower multiple-spray full oil recycling device - Google Patents

Multiple-absorption-tower multiple-spray full oil recycling device Download PDF

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Publication number
CN202398261U
CN202398261U CN2011204899102U CN201120489910U CN202398261U CN 202398261 U CN202398261 U CN 202398261U CN 2011204899102 U CN2011204899102 U CN 2011204899102U CN 201120489910 U CN201120489910 U CN 201120489910U CN 202398261 U CN202398261 U CN 202398261U
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China
Prior art keywords
oil
absorption
tower
absorption tower
heat exchanger
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Expired - Lifetime
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CN2011204899102U
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Chinese (zh)
Inventor
王博
孙兵
周刚
黄智勇
卫东锋
李军
别立波
管永亮
陈明
潘博
马军朋
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China Nonferrous Metals Processing Technology Co Ltd
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China Nonferrous Metals Processing Technology Co Ltd
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Priority to CN2011204899102U priority Critical patent/CN202398261U/en
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Abstract

The utility model discloses a multiple-absorption-tower multiple-spray full oil recycling device, which comprises a smoke absorption system. The smoke absorption system comprises a plurality groups of fans and absorption towers which are connected through air tubes, and the plurality of absorption towers are sequentially in series connection through oil pipes provided with gear pumps and double-linkage filters. The multiple-absorption-tower multiple-spray full oil recycling device adopts the plurality of absorption towers to achieve single-to-single matching of rolling machines and the absorption towers, and resolves three problems which cannot be resolved by arranging one absorption tower for a plurality of rolling machines. Firstly, air amount treated by a system is remarkably improved, and requirements of a plurality of rolling machines with the large smoke exhaust rate can be met. Secondly, if one single rolling machine breaks out of fire, or when the absorption towers is maintained, fillers are changed or absorber oil is replaced, spray absorption of remained absorption towers can be achieved by switching control valves, and the system can still run normally.

Description

The full oil recovery apparatus that a kind of many absorption towers repeatedly spray
Technical field
The utility model relates to aluminium-foil mill smoke evacuation mist of oil recovery technology field, refers more particularly to the full oil recovery apparatus that a kind of many absorption towers repeatedly spray.
Background technology
At present, the equipment that is used for reclaiming aluminium milling train oil smoke ROLLING OIL is the full oil recovery apparatus of aluminium milling train oil smoke, and this device is design to the oil-containing flue gas that produces in aluminium sheet, band, the paper tinsel operation of rolling a kind of energy-conservation, consumption reduction, emission abatement device.The capital equipment that realize reducing ROLLING OIL consumption, reduces Air Pollutant Emission; Operation principle is following: utilize washing oil (absorbent) and the good intersolubility of ROLLING OIL (being absorbed object); And the difference of the saturated vapor pressure under uniform temp and pressure; With the washing oil is that absorbent absorbs the ROLLING OIL in the milling train oil smoke; Utilize the gold-plating path difference of washing oil and ROLLING OIL that the washing oil (rich washing oil is also claimed miscella) that contains ROLLING OIL is resolved again---be about to these two kinds of oil products and separate, through processes such as absorption, desorbs the gas in the flue gas, liquid two phase mist of oils are reclaimed, ROLLING OIL reclaims and the purpose of oil mist concentration qualified discharge thereby reach; The ROLLING OIL that reclaims can directly be returned into the ROLLING OIL circulatory system, and it is about more than 40% to practice thrift new ROLLING OIL use amount.Its technological process is following:
Absorb: the oil-containing flue gas gets into from the bottom, absorption tower, passes inner-tower filling material, the reverse flow contact that washing oil (absorbent) imported and in packing layer, set up gas phase, liquid phase from cat head, and the ROLLING OIL in the milling train oil smoke incorporates in the washing oil (absorbent).
Desorb: the washing oil that contains ROLLING OIL is pumped to degassing tower, removes behind water vapour and the air again through the heat exchanger preheating, gets into desorber be heated to the temperature of setting by heater after; Under vacuum condition, the ROLLING OIL vaporization is also evaporated from miscella, and gas phase ROLLING OIL part is discharged from the middle and upper part of tower; Reflux after the cooling in cat head; Pure ROLLING OIL steam is discharged from cat head, after condenser is cooled to liquid phase inflow finished product jar, reaches certain liquid level, is fed in the finished product fuel tank.
Liquid phase washing oil after the parsing is discharged from desorber bottom, and the heat exchanger of flowing through the then back that lowers the temperature in advance gets into cooler, in this cooler, be cooled to needed absorption temperature after, be admitted to the top on absorption tower, get into the absorption of a new round.
At present, full oil recovery apparatus both domestic and external all is single absorption tower, and many milling trains share an absorption tower exactly, and there are three insurmountable problems on single absorption tower: the first, and the exhaust smoke level of milling train is increasing, and the exhaust smoke level of separate unit milling train reaches 120000~150000Nm 3/ h is if four milling trains are exactly 500000~600000Nm altogether 3/ h, single absorption tower can't be realized.The second, fire risk increases, and several milling trains link together through airduct, during as if a milling train breaking out of fire, if control system down may spread to other milling trains, enlarges fire damage.The 3rd, when always there was maintenance on the absorption tower, changes filler and changes clothes oil, at this time several milling trains must all be shut down.
With regard to sent for regeneration, at this time the content of ROLLING OIL was between 1%~2% in the miscella after the full oil recovery apparatus washing oil of present stage sprayed once in the absorption tower, and concentration is too rare, and is not energy-conservation.Because washing oil and ROLLING OIL are dissolved each other, if under the situation that does not influence assimilation effect, washing oil can be in the absorption tower many pouring several times, for example 3~5 times, concentration reaches 5%~10%, at this moment, sent for regeneration again, energy-saving effect is very obvious.
Summary of the invention
In order to solve above-mentioned existing problem, the purpose of the utility model has provided the full oil recovery apparatus that a kind of many absorption towers repeatedly spray, and this full oil recovery apparatus will adopt many absorption towers to arrange, absorbs oil and repeatedly sprays, and can strengthen energy-saving effect greatly.
For realizing the foregoing invention purpose, the utility model has adopted following technical scheme:
The full oil recovery apparatus that a kind of many absorption towers repeatedly spray; Comprise the smoke absorption system, separate desorption system, product oil output system, the washing oil circulatory system and cooling water recirculation system, described desorption system, product oil output system, the washing oil circulatory system and the cooling water recirculation system of separating is all identical with prior art; Described smoke absorption system comprises blower fan and the absorption tower that links together through airduct, and described blower fan that links together and absorption tower are provided with some groups, and are connected together through the oil pipe string that is equipped with gear pump and duplex strainer between the absorption tower.
Owing to adopt above technical scheme, the utlity model has following good effect:
The list that the design of many absorption towers can realize milling train and absorption tower can solve three problems that the absorption tower cann't be solved of many milling train configurations to single configuration.At first, the processing air quantity of system can significantly promote, and satisfies the demand of many big exhaust smoke level milling trains.Secondly, as if breaking out of fire of separate unit milling train or absorption tower maintenance, when changing filler or changing washing oil, can realize the spray absorption of residual absorption tower through the switching controls valve, system still can normally move.
Repeatedly spray can improve the ROLLING OIL concentration that absorbs in the oil; Reduced the circular flow that absorbs oil simultaneously, the internal circulating load that absorbs oil can be by maximum the confirming of smoke evacuation air quantity in the milling train, owing to absorb the reduction of oily internal circulating load; System's operation will be more energy-conservation, also reduce investment cost of equipment simultaneously.
Description of drawings
Fig. 1 is that many absorption towers repeatedly spray full oil recovery apparatus sketch map.
Among the figure: 1-milling train A; 2-milling train B; 3-milling train C; 4-blower fan A; 5-blower fan B; 6-blower fan C; The 7-airduct; 8-absorption tower A; 9-absorption tower A smoke inlet; 10-absorption tower B; 11-absorption tower B smoke inlet; 12-absorption tower C; 13-absorption tower C smoke inlet; 14-absorption tower A oil export; The 15-oil pipe; The 16-gear pump; The 17-duplex strainer; B oil-in, 18-absorption tower; 19-absorption tower B oil export; The 20-gear pump; The 21-duplex strainer; C oil-in, 22-absorption tower; 23-absorption tower C oil export; The 24-gear pump; 25 duplex strainers; The 26-degassing tower; 27-degassing tower oil-in; 28-degassing tower oil export; The 29-centrifugal pump; 30-plate type heat exchanger A; 31-plate type heat exchanger A first inlet; 32-plate type heat exchanger A first outlet; 33-plate type heat exchanger B; 34-plate type heat exchanger B first inlet; 35-plate type heat exchanger B first outlet; The 36-reboiler; 37-reboiler inlet; The outlet of 38-reboiler; The 39-desorber; 40-desorber oil-in; 41-desorber oil export; The 42-centrifugal pump; 43-plate type heat exchanger A second inlet; 44-plate type heat exchanger A second outlet; 45-plate type heat exchanger C; 46-plate type heat exchanger C first inlet; 47-plate type heat exchanger C first outlet; A oil-in, 48-absorption tower; 49-conduction oil electric heater; The outlet of 50-conduction oil electric heater; 51-conduction oil electric heater inlet; 52-plate type heat exchanger B second inlet; 53-plate type heat exchanger B second outlet; 54-desorber oil gas vent; 55-desorber oil gas vent; 56-condenser A; 57-condenser A inlet; 58-gas-liquid separator A; 59-condenser B; 60-condenser B inlet; 61-gas-liquid separator B; 62-degassing tower gas vent; 63-return tank oil export; 64-return tank oil-in; 65-finished product return tank gas vent; 66-finished product jar; 67-finished product jar oil-in; The 68-return tank; The 69-gear pump; 70-desorber withdrawing oil inlet; 71-finished product jar oil export; The 72-gear pump; 73-finished product fuel tank; 74-vavuum pump group; The 75-vacuum pipe; 76-plate type heat exchanger C second inlet; 77-plate type heat exchanger C second outlet; The water inlet of 78-cooling water; 79-cooling water backwater; The 80-cooling water pipeline; 81-gas-liquid separator A gas vent; 82-gas-liquid separator B gas vent; 83-condenser A cooling water inlet; 84-condenser A coolant outlet; 85-condenser B cooling water inlet; 86-condenser B coolant outlet.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further to specify:
With three milling trains and three blower fans of corresponding setting and three absorption towers is that example is further explained the utility model.
Full oil recovery apparatus as shown in Figure 1, that a kind of many absorption towers repeatedly spray comprises smoke absorption system, desorption system, product oil output system, the washing oil circulatory system and cooling water recirculation system
Described smoke absorption system comprises blower fan and the absorption tower that links together through airduct, and the oil-containing flue gas that the milling train A operation of rolling produces connects with the bottom smoke inlet 9 of absorption tower A 8 through airduct 7 through blower fan A 4; The oil-containing flue gas that milling train B 2 operations of rolling produce connects with the bottom smoke inlet 11 of absorption tower B 10 through airduct 7 through blower fan B 5; The oil-containing flue gas that milling train C 3 operations of rolling produce connects with the bottom smoke inlet 13 of absorption tower C 12 through airduct 7 through blower fan C 6; The oil export 14 of absorption tower A 8 bottoms connects through the inlet of gear pump 16 with duplex strainer 17 through oil-piping 15, and its lower end outlet connects with the oil-in 18 of absorption tower B 10 tops through oil-piping (15) again; The oil export 19 of absorption tower B 10 bottoms connects through the inlet of gear pump 20 with duplex strainer 21 through oil-piping 15, and its lower end outlet connects with the oil-in 22 of absorption tower C 12 tops through oil-piping 15 again; C 12 bottom oil exports 23 in absorption tower connect with duplex strainer 25 inlets through gear pump 24 through oil-piping 15, and its lower end outlet connects with the oil-in 27 of degassing tower 26 tops through oil-piping 15 again.
Described desorption system comprises degassing tower, reboiler and desorber; The oil export 28 of degassing tower 26 bottoms connects with plate type heat exchanger A first inlet 31 of bottom, plate type heat exchanger A 30 left side through centrifugal pump 29 through oil-piping 15; Plate type heat exchanger A first outlet 32 of plate type heat exchanger A 30 right upper portion connects with plate type heat exchanger B first inlet 34 of bottom, plate type heat exchanger B 33 left side; Plate type heat exchanger B first outlet 35 of plate type heat exchanger B 33 right upper portion connects with the reboiler inlet (37) of reboiler 36 bottoms through oil-piping, and the reboiler outlet 37 on reboiler 36 tops connects with the desorber oil-in 40 at desorber 39 tops through oil-piping; The Analytic Tower oil export 41 of Analytic Tower 39 bottoms connects with plate type heat exchanger A second inlet 43 of plate type heat exchanger A 30 lower right side through centrifugal pump 42 through oil-piping; Plate type heat exchanger A second outlet 44 of plate type heat exchanger A 30 left upper portion connects with plate type heat exchanger C first inlet 46 of plate type heat exchanger C 45 lower right side; Plate type heat exchanger C first outlet 47 of plate type heat exchanger C 45 left upper portion connects with the A oil-in, absorption tower 48 of absorption tower A 8 tops through oil-piping; Get into absorption tower A spray through the oil of the absorption after the degassing, the desorb; The circulation of entering next round; In this process, absorb oil and in absorption tower A 8, absorption tower B 10, absorption tower C 12, accomplished and send into that degassing tower 26, desorber 39 outgas, desorb behind three sprays again;
Described product oil output system comprises that the desorber oil gas vent 54 on desorber 39 tops connects with condenser A inlet 57 through vacuum pipe 75; High-temperature oil gas gets into gas-liquid separator A 58 after condenser A 56 condensations; Condensable gases is not extracted out by vavuum pump group 74 through vacuum pipe and is sent into absorption tower A; And condensed liquid connects entering finished product jar 66 through oil-piping with the finished product jar inlet 67 on finished product jar 66 tops; The outlet 71 of the finished product jar of finished product jar 66 bottoms connects with finished product fuel tank 73 through gear pump 72 through oil-piping, and it is for use that the ROLLING OIL in the finished product jar 66 is conveyed in the finished product fuel tank 73 storage through gear pump 72; The desorber oil gas vent 55 at desorber 39 middle parts connects with the condenser B inlet 60 of condenser B 59 through vacuum pipe; High-temperature oil gas gets into gas-liquid separator B 61 after condenser B 59 condensations; Condensable gases is not extracted out by vavuum pump group 74 through vacuum pipe and is sent into absorption tower A; And condensed liquid connects entering return tank 63 through oil-piping with the return tank inlet 64 on return tank 63 tops; The return tank outlet 68 of return tank bottom connects formation through oil-piping with the desorber withdrawing oil inlet 70 on desorber top through gear pump 69 and refluxes, and guarantees the distilled oil quality;
The described washing oil circulatory system comprises that the degassing tower gas vent 62 on degassing tower 26 tops connects with vavuum pump group 74 through vacuum pipe; The gas-liquid separator B gas vent of the gas-liquid separator A gas vent of gas-liquid separator A 58 and gas-liquid separator B 61 all connects with vavuum pump group 74 through vacuum pipe; Finished product jar 66 connects with the vavuum pump group through vacuum pipe with the finished product return tank gas vent 65 of top, return tank 63 left sides, and the gas that the vavuum pump group is extracted out is sent into the absorption tower and reuptaked; The effect of washing oil (the absorbing oil) circulatory system is to provide recycling of washing oil and maintenance system under presetting condition, to work for system.
Described plate type heat exchanger B is connected with conduction oil electric heater 49; The outlet 50 of conduction oil electric heater connects with plate type heat exchanger B second inlet 52 of plate type heat exchanger B 33 lower right side through oil-piping; The outlet plate type heat exchanger B the 2 53 of plate type heat exchanger B 33 left upper portion connects with conduction oil electric heater inlet 51 through oil-piping, is used to accomplish the heat-conducting oil heating cyclic process.
Described cooling water recirculation system comprises cooling water water inlet 78 and cooling water backwater 79; Cooling water water inlet 78 connects with plate type heat exchanger C second inlet 76 of plate type heat exchanger C 45 right upper portion through cooling water pipeline 80; Plate type heat exchanger C second outlet 77 of bottom, plate type heat exchanger C left side connects with cooling water backwater 79 through cooling water pipeline, accomplishes the cooling procedure that absorbs oil; Cooling water water inlet 78 connects with condenser A cooling water inlet 83 through cooling water pipeline; Condenser A coolant outlet 84 connects with condenser B cooling water inlet 85; Condenser B coolant outlet 86 connects with cooling water backwater 79 through cooling water pipeline, is used to accomplish the high-temperature oil gas condensation process.
Many absorption towers of the utility model repeatedly spray full oil recovery apparatus; Its blower fan is conveyed into the absorption tower with the oil-containing gases that milling train produces, and absorbs oil through in a plurality of absorption towers, repeatedly spraying, and has improved to absorb the ROLLING OIL concentration in the oil; Because the boiling range that absorbs oil is than rolling innage; ROLLING OIL through the decompression distillation principle will absorb in the oil is separated, and the oil-containing gases after absorbing through absorption oil has become clean gas and entered atmosphere, has reduced the pollution of much gas; The ROLLING OIL that reclaims can be returned the milling train fuel tank and recycle, and has good economic benefit.

Claims (1)

1. the full oil recovery apparatus that repeatedly sprays of absorption tower more than a kind; Comprise the smoke absorption system; Described smoke absorption system comprises blower fan and the absorption tower that links together through airduct; It is characterized in that: described blower fan that links together and absorption tower are provided with some groups, and some absorption towers are connected together through the oil pipe string that is equipped with gear pump and duplex strainer successively.
CN2011204899102U 2011-12-01 2011-12-01 Multiple-absorption-tower multiple-spray full oil recycling device Expired - Lifetime CN202398261U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204899102U CN202398261U (en) 2011-12-01 2011-12-01 Multiple-absorption-tower multiple-spray full oil recycling device

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Application Number Priority Date Filing Date Title
CN2011204899102U CN202398261U (en) 2011-12-01 2011-12-01 Multiple-absorption-tower multiple-spray full oil recycling device

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CN202398261U true CN202398261U (en) 2012-08-29

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104923039A (en) * 2015-06-26 2015-09-23 山东钢铁股份有限公司 Tail gas emission system
CN112169539A (en) * 2020-09-01 2021-01-05 中色科技股份有限公司 Operation control method for multi-absorption-tower parallel operation full-oil recovery system
CN113134248A (en) * 2021-05-19 2021-07-20 浙江华源实业有限公司 Full oil recovery transition equipment and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104923039A (en) * 2015-06-26 2015-09-23 山东钢铁股份有限公司 Tail gas emission system
CN112169539A (en) * 2020-09-01 2021-01-05 中色科技股份有限公司 Operation control method for multi-absorption-tower parallel operation full-oil recovery system
CN113134248A (en) * 2021-05-19 2021-07-20 浙江华源实业有限公司 Full oil recovery transition equipment and method

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Granted publication date: 20120829

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