CN207143067U - A kind of oil plant oily sludge disposal system - Google Patents

Abstract

The utility model provides a kind of oil plant oily sludge disposal system, it realizes the harmless treatment of oily sludge, the effective recycling treatment and Utilizing question for solving oily sludge, designed simultaneously using skidization, it is compact-sized, floor space is small, including the greasy filth reservoir being connected, quenched unit, centrifugal treating unit, it is granulated desiccation unit, thermal cracking unit, tail gas treating unit, the quenched unit, centrifugal treating unit, desiccation unit is granulated to be separately positioned on the quenched integrated prying body of centrifugation desiccation, the tail gas treating unit, thermal cracking unit is separately positioned on thermal cracking tail gas and integrated on prying body.

Description

A kind of oil plant oily sludge disposal system

Technical field

Oil-sludge treatment field is the utility model is related to, specially a kind of oil plant oily sludge disposal system.

Background technology

Oily sludge is put into《Danger wastes register》, include danger wastes（HW08 classes）It is managed, containing greasy dirt Sludge-polluted composition is mainly organic compound, and based on petroleum substance, China's disposal of oily sludge does not obtain enough attention, In addition oily sludge species is various, and property is complicated, and diversified trend is also presented in corresponding treatment technology and equipment, and wherein refinery contains Greasy dirt is mainly derived from the mud of refinery three, comprising oil interceptor sludge, floation tank scum silica frost, petroleum tank bed mud etc., refinery's oil-containing at present Sludge Disposal Techniques are broadly divided into mechanical dehydration technique, sludge drying process, outward transport burning process.

Mechanical dehydration technique method of disposal is simple, ripe, but the sludge moisture content after being dehydrated is still 80% or so, aqueous Amount is high, and the total scale of construction of sludge is not greatly reduced, and still takes substantial amounts of stockyard, and because moisture is high, having in sludge Fall ill bacterium and the anaerobe amount reproduction in the case of proper temperature, produce foul gas, cause the hidden of environment and health Suffer from；It is integrated with treating tail gas that Publication No. CN205974231U utility model discloses a kind of oil plant oily sludge desiccation Processing system, the system can make greasy filth moisture content be down to 30% from 90%, but the sludge after desiccation disposal is not reaching to sludge Harmlessness disposing, the sludge after its desiccation is still needed to dispose as dangerous waste, and blades type drying machine, blade are used in the utility model Formula desiccation machine has the shortcomings of floor space is larger, and drying time is long；Burning process is transported outward, due to belonging to security sensitive in refinery Region, to forbid to use naked light, outward transport incineration disposal can produce high disposal costs, and due to the high incineration disposal of sludge moisture content During can cause the situation of burn incompletely, the product of burn incompletely can cause secondary environmental pollution by tail gas.

Utility model content

The purpose of this utility model is to provide a kind of oil plant oily sludge disposal system, and it realizes the nothing of oily sludge Evilization processing, the effective recycling treatment and Utilizing question for solving oily sludge, while designed using skidization, structure is tight Gather, floor space is small.

Its technical scheme is such：A kind of disposal system of oil plant oily sludge, it is characterised in that：Including being connected Greasy filth reservoir, quenched unit, centrifugal treating unit, be granulated desiccation unit, thermal cracking unit, tail gas treating unit, the tune The quenched rear feeding centrifugal treating unit of oily sludge from the greasy filth reservoir is carried out the solid three-phase separate of profit by matter unit From aqueous phase and oil phase difference categorised collection, solid phase feeding granulation desiccation unit granulation desiccation are re-fed into the thermal cracking unit and entered Row thermal cracking, the oil gas for cracking to obtain aqueous phase and oil phase difference categorised collection, the dry slag discharge after cracking, institute after Oil-gas Separation State and be granulated tail gas feeding tail gas treating unit processing caused by desiccation unit and the thermal cracking unit, the quenched unit, Centrifugal treating unit, granulation desiccation unit are separately positioned on quenched centrifugation desiccation and integrated on prying body, the tail gas treating unit, heat Cracking unit is separately positioned on thermal cracking tail gas and integrated on prying body.

Further, the quenched unit includes quenched tank, the output end of the greasy filth reservoir by sludge delivery pump with The input of the quenched tank is connected, and the quenched tank is connected with grug feeding jar, it is quenched after oily sludge from the quenched tank Output end input centrifugal treating unit.

Further, the centrifugal treating unit includes horizontal screw centrifuge, and the output end connection of the quenched tank is described sleeping The input of screw centrifuge, the oil phase output end connection abjection oil tank of the horizontal screw centrifuge, the water of the horizontal screw centrifuge Phase output terminal connection abjection water storage tank, the solid phase output end connection granulation desiccation unit of the horizontal screw centrifuge.

Further, the granulation desiccation unit includes being granulated desiccation machine, and solid phase is by high thick mud screw rod conveyor from institute The solid phase output end for stating horizontal screw centrifuge is sent into granulation desiccation machine, and the granulation desiccation machine is connected with steam generator, described The silt of granulation desiccation machine goes out end and silt is sent into the thermal cracking unit by elevator, and the tail gas of the granulation desiccation machine is defeated Go out end and tail gas is sent into tail gas treating unit by being granulated drying tail gas disposal air-introduced machine；

Further, the thermal cracking unit includes apparatus for thermal cleavage, and the elevator is by sealing feed hopper by silt It is sent into the apparatus for thermal cleavage, the input of the oil gas output end connection oil gas heat exchanger of the apparatus for thermal cleavage, oil phase leads to Cross in the oil phase output end input cracking oil tank of the oil gas heat exchanger, aqueous phase is exported by the aqueous phase of the oil gas heat exchanger In end input condensation water storage tank, condensible gas is not drawn from the not condensible gas output end of the oil gas heat exchanger by petroleum vapor recovery Blower fan is inputted in the apparatus for thermal cleavage, and the tail gas output end of the apparatus for thermal cleavage disposes air-introduced machine by thermal cracking tail gas will Thermal cracking tail gas enters the tail gas treating unit；

Further, the tail gas treating unit removes including the whirlwind that is connected with the tail gas output end of the apparatus for thermal cleavage Dirt machine, the cyclone dust removal machine output end connection vent gas treatment heat exchanger input, the vent gas treatment heat exchanger it is defeated Go out the input of end connection tail gas disposal sprinkling equipment, the tail gas output end for being granulated desiccation machine connects the tail gas disposal spray Drench the input of equipment, the input of the output end connection plasma apparatus of the tail gas disposal sprinkling equipment, the plasma The input of the output end connection adsorbent equipment of equipment, the output end connection exhaust emissions chimney of the adsorbent equipment.

The advantages of the utility model：

1st, by quenched unit, centrifugal treating unit, granulation desiccation unit, thermal cracking unit, tail gas treating unit are to refining Oily factory's oily sludge is handled, while the sludge after desiccation is handled, and realizes the harmlessness disposing of sludge, is eliminated Harm of the oily sludge to environment, is additionally handled caused tail gas in oily sludge disposal process, and tail gas meets Fume environment protection qualified discharge, environment-protecting clean, avoid impacting environment, in greasy filth separation process is largely circulation with water Use, caused waste residue, waste gas and waste water in oily sludge disposal process thoroughly eliminated；Meanwhile preciousness is reclaimed Resource, there is the characteristics of efficient, to save, be green, without any secondary pollution, reduce greasy filth cost of disposal, Utilization prospects are wide It is wealthy.

2nd, high treating effect：Realize that oily sludge moisture content is down to less than 0.1%, minimizing degree >=90% is net after decrement Change dry slag to meet《Pollutant catabolic gene standard in agricultural sludge》GB4284-1984；Exhaust emissions meets country and production technology is filled The exhaust requirements put：《Petro chemical industry pollutant emission standard》(GB31571- 2015), petroleum refining industry pollutant Discharge standard（GB31570-2015）、《Discharge standard of air pollutants》Requirement in (GB16297- 1996), is realized The harmless treatment of oily sludge.

3rd, designed using skidization, function integrates, and takes up an area small, convenient operation and management, improves factory prefabricating degree, reduces Site operation amount, facilitate produced on-site tissue, maneuverability is strong, is easy to strange land transport, place strong adaptability.

Brief description of the drawings

Fig. 1 is a kind of process flow diagram of the disposal system of oil plant oily sludge of the utility model.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

See Fig. 1, a kind of disposal system of oil plant oily sludge of the present utility model, including be connected greasy filth reservoir 1, Quenched unit 2, centrifugal treating unit 3, desiccation unit 4 is granulated, thermal cracking unit 5, tail gas treating unit 6, quenched unit 2 is in the future The solid three phase separation of profit, aqueous phase and oil phase difference are carried out from the quenched rear centrifugal treating unit 3 of being sent into of the oily sludge of greasy filth reservoir 1 Categorised collection, solid phase are sent into the granulation desiccation of granulation desiccation unit 4 and are re-fed into the progress thermal cracking of thermal cracking unit 5, crack what is obtained Oil gas aqueous phase and oil phase difference categorised collection after Oil-gas Separation, the dry slag discharge after cracking, are granulated desiccation unit 4 and hot tearing Tail gas caused by solution unit 5 is sent into tail gas treating unit 6 and handled, and quenched unit 2, centrifugal treating unit 3, is granulated desiccation unit 4 It is separately positioned on quenched centrifugation desiccation to integrate on prying body 7, tail gas treating unit 5, thermal cracking unit 6 are separately positioned on thermal cracking tail Gas is integrated on prying body 8.

Quenched unit includes quenched tank 9, and the output end of greasy filth reservoir 1 passes through the input of sludge delivery pump 10 and quenched tank 9 End is connected, and quenched tank 9 is connected with grug feeding jar 10, it is quenched after oily sludge input centrifugal treating from the output end of quenched tank 9 Unit 3.

Centrifugal treating unit 3 includes horizontal screw centrifuge 11, the input of the output end connection horizontal screw centrifuge 11 of quenched tank 9 End, the oil phase output end connection abjection oil tank 12 of horizontal screw centrifuge, the aqueous phase output end connection abjection water storage of horizontal screw centrifuge Tank 13, the solid phase output end connection of horizontal screw centrifuge are granulated desiccation unit 4.

Being granulated desiccation unit 4 includes being granulated desiccation machine 14, and solid phase is by high thick mud screw rod conveyor 15 from horizontal screw centrifuge Solid phase output end be sent into and be granulated in desiccation machine 14, be granulated desiccation machine 14 and be connected with steam generator 29, be granulated desiccation machine 14 Silt goes out end and silt is sent into thermal cracking unit 6 by elevator 31, is granulated the tail gas output end of desiccation machine by being granulated desiccation Tail gas is sent into tail gas treating unit by tail gas disposal air-introduced machine 16；

Thermal cracking unit includes apparatus for thermal cleavage 17, and elevator 31 is set silt feeding thermal cracking by sealing feed hopper 30 In standby 17, the input of the oil gas output end connection oil gas heat exchanger 18 of apparatus for thermal cleavage 17, oil phase passes through oil gas heat exchanger 18 Oil phase output end input cracking oil tank 19 in, aqueous phase passes through the aqueous phase output end of oil gas heat exchanger 18 input condensation water storage tank In 20, condensible gas does not input thermal cracking from the not condensible gas output end of oil gas heat exchanger 18 by petroleum vapor recovery air-introduced machine 21 In equipment 17, the tail gas output end of apparatus for thermal cleavage 17 disposes air-introduced machine 22 by thermal cracking tail gas and thermal cracking tail gas is entered into tail Gas disposal unit, dry slag are transported by transport vehicle and discharged；

Tail gas treating unit includes the cyclone dust removal machine 23 that is connected with the tail gas output end of apparatus for thermal cleavage 17, cyclone dust removal The input of the output end connection vent gas treatment heat exchanger 24 of machine 23, the output end connection tail gas disposal of vent gas treatment heat exchanger 24 The input of sprinkling equipment 25, it is granulated the input of the tail gas output end connection tail gas disposal sprinkling equipment 25 of desiccation machine 14, tail The input of the output end connection plasma apparatus 26 of gas disposal sprinkling equipment 25, the output end connection absorption of plasma apparatus 26 The input of device 27, the output end connection exhaust emissions chimney 28 of adsorbent equipment 27.

The disposal plant of oil plant oily sludge of the present utility model is set all using skid-mounted type equipment for continuous production It is standby, prying body is integrated comprising quenched centrifugation desiccation, thermal cracking tail gas integrates prying body, is provided with the quenched integrated prying body of centrifugation desiccation quenched Tank, quenched tank are linked by sludge delivery pump and greasy filth reservoir, and adding medicament into quenched tank by grug feeding jar makes water-oil separating Improve sludge settling property simultaneously, it is quenched after sludge deliver into horizontal screw centrifuge and make oil, water, mud progress three phase separation, Horizontal screw centrifuge can realize the three phase separation of oil, water, mud using mechanical energy, and the moisture content of the cake after separating is less than 80%, dehydration Speed is fast, and dehydrating effect is excellent, and oil phase enters abjection oil tank, and aqueous phase enters abjection water storage tank, and mud cake moisture after dehydration≤ 80%, mud cake is entered by high thick mud screw rod conveyor is granulated desiccation machine, is granulated desiccation machine and provides thermal source by steam generator, Moisture control is 20-30% in sludge after drying, is granulated decrement degree >=80% of desiccation stage sludge, is granulated desiccation machine Disc type drying integrated equipment is granulated for software, equipped with automatic control system and process monitoring system, sludge deadweight produces pressure Comminutor cavity volume is filled up by force, the mud granule to form 2-15mm, mud granule automatic demoulding are granulated by positive displacement and broken shell formula Make rake leaf continuously turn over as gyration with the rake arms for harrowing leaf into hypomere tray drier, on basin to copy material, done Material is discharged from last layer of discharging opening., the moisture content of evaporation is from the moisture exhausting port discharge being located on top cover, using 150-160 DEG C Saturated vapor employs heat exchange pattern indirect heat exchange of the heat transfer to heat as dried medium, compared to more traditional drying mode, Evaporation efficiency can improve 1.5-2 times, and gas emissions are small, and moisture content is reduced to 20-30% to material after drying, and decrement degree >= 80%, tail gas caused by desiccation machine, which is granulated, by being granulated drying tail gas disposal air-introduced machine enters exhaust treatment system, it is dirty after drying Mud is changed into silt state from mud cake, enters apparatus for thermal cleavage from sealing feed hopper by elevator, apparatus for thermal cleavage is equipped with certainly Autocontrol system and process monitoring system, thermal source can use diesel oil, natural gas, biomass fuel, internal combustion type burning, meet refinery Safety in production requires that chuck indirectly heat, fully 400-600 DEG C of heating-up temperature, heating do not produce the pernicious gases such as bioxin, dirty The organic pollution such as moisture, oil reaches boiling point by apparatus for thermal cleavage and is changed into steam in mud particle, then passes through oil gas condensation Device is separated, and reaches sewage sludge harmlessness disposing, the purpose of oil product recycling recovery, and sludge passes through in thermal cracking main equipment Indirectly heat, 400-600 DEG C of heating-up temperature, oil, organic component in sludge be heated to more than boiling temperature be able to desorption, Cracking is separated from sludge, and oil-gas component is changed into liquid by oil gas heat exchanger from gaseous state, and oil phase is stored into cracked oil storage Tank, aqueous phase enter condensation water storage tank, and condensible gas does not then return to thermal cracking main equipment supplemental heat by petroleum vapor recovery air-introduced machine Source, thermal cracking tail gas dispose air-introduced machine by thermal cracking tail gas and enter exhaust treatment system, and exhaust treatment system removes comprising whirlwind Dirt equipment, remove flue dust after tail gas enter tail gas disposal heat exchanger cool off, tail gas enter tail gas disposal sprinkling equipment Desulfurization removing nitric, VOCs gases in tail gas are removed using low-temperature plasma equipment, final disposal are carried out to tail gas using adsorbent equipment, Tail gas after purified is reached by exhaust emissions chimney qualified discharge, non-secondary pollution, the dry slag after thermal cracking disposal The requirement of harmlessness disposing, while minimizing degree >=90%, properly disposed by dry slag transport vehicle.

The disposing technique of oil plant oily sludge of the present utility model, comprises the following steps:

Step S1：It is quenched, oily sludge addition medicament is carried out it is quenched, by sludge delivery pump by oily sludge from sludge Reservoir is sent into quenched tank, and addition medicament progress of the grug feeding jar into quenched tank is quenched, and is entered by the agitating device in quenched tank Row stirring；

Step S2：Centrifugal treating, will be quenched in step S1 after oily sludge carry out oil, water, consolidate three phase separation, divide respectively Class collects oil phase, aqueous phase, solid phase, will be quenched after oily sludge be sent into horizontal screw centrifuge and carry out oil, water, solid three phase separation, it is oily Mutually it is sent into abjection oil tank, aqueous phase is sent into abjection water storage tank, and solid phase mud cake is sent into by high thick mud screw rod conveyor and is granulated In desiccation machine；

Step S3；Drying and other treatment is granulated, the solid phase obtained in step S2 is carried out into granulation desiccation obtains silt, is granulated desiccation Machine provides thermal source by steam generator, and the solid phase mud cake that will be fed into granulation desiccation machine is dried to obtain silt；

Step S4：Thermal cracking process：The silt obtained in step S3 is subjected to thermal cracking, the oil gas for cracking to obtain is through oil gas Categorised collection oil phase and aqueous phase after separation, dry slag discharge, the silt after desiccation are sent into heat by the sealed feed hopper of elevator Cracking apparatus, heated by apparatus for thermal cleavage, obtain the oil gas for cracking out from silt, oil gas is by oil gas heat exchanger from gas State is changed into liquid, and oil phase is stored into cracking oil tank, and aqueous phase enters condensation water storage tank, and condensible gas is not drawn then by petroleum vapor recovery Blower fan returns to thermal cracking main body supplemental heat source, dry slag qualified discharge.

Step S5：Vent gas treatment, tail caused by thermal cracking in tail gas caused by desiccation and step S4 will be granulated in step S3 Gas discharges after being handled, and is granulated tail gas caused by desiccation and is sent into cyclone dust removal machine dedusting, then enters by vent gas treatment heat exchanger Row cooling, then and thermal cracking caused by tail gas be sent into together tail gas dispose sprinkling equipment desulfurization removing nitric, then by low temperature etc. from Sub- equipment removes VOCs gases, is then fed into adsorbent equipment and carries out adsorption cleaning, finally by exhaust emissions chimney qualified discharge.

The grug feeding jar addition medicament is the one or more in demulsifier, gel breaker, flocculant, and addition is demulsification Agent：Gel breaker：Flocculant=0.1%-1%：0.5%-2%：0.1%-0.5%；Dried medium uses 150 in the drying and other treatment process DEG C -160 DEG C of saturated vapor；The heating-up temperature of the thermal cracking process is 400 DEG C -600 DEG C.

Embodiment one：The present embodiment is to repair oil content 62300ppm, moisture content 85.20%, and the refinery of solid content 8.57% is equal Matter pond oily sludge, sludge treatment amount 3900t, sludge is delivered to quenched tank first with sludge delivery pump, passes through grug feeding jar Add demulsifier：Flocculant=0.1-1%：0.1-0.5%, the sludge after dosing stirring enter horizontal screw centrifuge oil, water, mud three It is separated, deviates from mud liquid holdup≤80%, be reduced degree >=57%, mud cake enters through too high thick mud screw rod conveyor is granulated desiccation Machine, sludge is changed into the mud granule of 2-15mm particle diameters after granulation, and moisture control is 20-30%, and the decrement degree of sludge >= 89%, sludge is changed into silt state from mud cake after drying, and enters thermal cracking main equipment indirectly heat by elevator, heats 400-550 DEG C of temperature, realize that moisture percentage in sewage sludge is down to less than 0.1%, minimizing degree >=91%, be reduced the dry slag petrochina of after-purification Class material is 102ppm, is met《Pollutant catabolic gene standard in agricultural sludge》GB4284-1984 petrochina class materials are less than 3000ppm standard；Sulfur dioxide in tail gas ＜ 50mg/m3, NOx ＜ 100mg/m3, flue dust ＜ 20mg/m3, discharge meet《Stone Oiling emission of industrial pollutants standard》(GB31571- 2015), petroleum refining industry pollutant emission standard（GB31570- 2015）Specified in standard value, recovery can utilize fuel oil 150t.

Embodiment two：The present embodiment is to repair oil content 140210ppm, moisture content 78.71%, the refinery of solid content 7.269% Tank bottom oil sludge, sludge treatment amount 3000t, sludge is delivered to quenched tank first with sludge delivery pump, added by grug feeding jar Demulsifier：Gel breaker：Flocculant=0.1-1%：0.5-2%：0.1-0.5%, the sludge after dosing stirring enter horizontal screw centrifuge Oil, water, mud three phase separation, quenched eccentric phase oil product >=80%, deviate from mud liquid holdup≤75%, be reduced degree >=70%, mud cake warp Too high thick mud screw rod conveyor, which enters, is granulated desiccation machine, and sludge is changed into the mud granule of 2-15mm particle diameters, moisture after granulation Control as 20-30%, decrement degree >=90% of sludge, sludge is changed into silt state from mud cake after drying, and is entered by elevator Enter thermal cracking main equipment indirectly heat, 400-550 DEG C of heating-up temperature, realize that moisture percentage in sewage sludge is down to less than 0.1%, minimizing Degree >=92.6%, the decrement dry slag petrochina class material of after-purification is 55ppm, is met《Pollutant catabolic gene standard in agricultural sludge》 GB4284-1984 petrochina classes material is less than 3000ppm standard；Sulfur dioxide in tail gas ＜ 50mg/m3, NOx ＜ 100mg/m 3, flue dust ＜ 20mg/m3, discharge meets《Petro chemical industry pollutant emission standard》(GB31571- 2015), petroleum refining Emission of industrial pollutants standard（GB31570-2015）Specified in standard value.

Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in Protection domain within.

Claims (6)

1. A kind of 1. disposal system of oil plant oily sludge, it is characterised in that：Including be connected greasy filth reservoir, quenched unit, Centrifugal treating unit, desiccation unit, thermal cracking unit, tail gas treating unit are granulated, the quenched unit will come from the greasy filth The quenched rear feeding centrifugal treating unit of oily sludge of reservoir carries out the solid three phase separation of profit, and aqueous phase and oil phase are classified respectively Collect, solid phase is sent into granulation desiccation unit granulation desiccation and is re-fed into the thermal cracking unit progress thermal cracking, cracks obtained oil Gas aqueous phase and oil phase difference categorised collection after Oil-gas Separation, the dry slag discharge after cracking, the granulation desiccation unit and institute State tail gas caused by thermal cracking unit and be sent into tail gas treating unit processing, the quenched unit, centrifugal treating unit, be granulated desiccation Unit is separately positioned on quenched centrifugation desiccation and integrated on prying body, and the tail gas treating unit, thermal cracking unit are separately positioned on heat Cracking tail gas is integrated on prying body.
2. A kind of 2. disposal system of oil plant oily sludge according to claim 1, it is characterised in that：The quenched unit Including quenched tank, the output end of the greasy filth reservoir is connected by sludge delivery pump with the input of the quenched tank, described Quenched tank is connected with grug feeding jar, it is quenched after oily sludge input centrifugal treating unit from the output end of the quenched tank.
3. A kind of 3. disposal system of oil plant oily sludge according to claim 2, it is characterised in that：The centrifugal treating Unit includes horizontal screw centrifuge, and the output end of the quenched tank connects the input of the horizontal screw centrifuge, the sleeping spiral shell centrifugation The oil phase output end connection abjection oil tank of machine, the aqueous phase output end connection abjection water storage tank of the horizontal screw centrifuge are described sleeping The solid phase output end connection granulation desiccation unit of screw centrifuge.
4. A kind of 4. disposal system of oil plant oily sludge according to claim 3, it is characterised in that：The granulation desiccation Unit includes being granulated desiccation machine, and solid phase is sent into from the solid phase output end of the horizontal screw centrifuge by high thick mud screw rod conveyor and made In grain desiccation machine, the granulation desiccation machine is connected with steam generator, and the silt for being granulated desiccation machine goes out end and passes through elevator Silt is sent into the thermal cracking unit, the tail gas output end for being granulated desiccation machine disposes air-introduced machine by being granulated drying tail gas Tail gas is sent into tail gas treating unit.
5. A kind of 5. disposal system of oil plant oily sludge according to claim 4, it is characterised in that：The thermal cracking list Member includes apparatus for thermal cleavage, and silt is sent into the apparatus for thermal cleavage by the elevator by sealing feed hopper, the hot tearing The input of the oil gas output end connection oil gas heat exchanger of equipment is solved, oil phase is defeated by the oil phase output end of the oil gas heat exchanger Enter to crack in oil tank, the aqueous phase output end input that aqueous phase passes through the oil gas heat exchanger is condensed in water storage tank, not condensible gas Inputted from the not condensible gas output end of the oil gas heat exchanger by petroleum vapor recovery air-introduced machine in the apparatus for thermal cleavage, it is described The tail gas output end of apparatus for thermal cleavage disposes air-introduced machine by thermal cracking tail gas and thermal cracking tail gas is entered into the vent gas treatment list Member.
6. A kind of 6. disposal system of oil plant oily sludge according to claim 5, it is characterised in that：The vent gas treatment Unit includes the cyclone dust removal machine that is connected with the tail gas output end of the apparatus for thermal cleavage, and the output end of the cyclone dust removal machine connects Connect the input of vent gas treatment heat exchanger, the input of the output end connection tail gas disposal sprinkling equipment of the vent gas treatment heat exchanger End, the tail gas output end for being granulated desiccation machine connect the input of the tail gas disposal sprinkling equipment, the tail gas disposal spray Drench the input of the output end connection plasma apparatus of equipment, the input of the output end connection adsorbent equipment of the plasma apparatus End, the output end connection exhaust emissions chimney of the adsorbent equipment.