CN107151561B - A kind of polystyrene foam plastics pyrolysis oil preparation device - Google Patents
A kind of polystyrene foam plastics pyrolysis oil preparation device Download PDFInfo
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- CN107151561B CN107151561B CN201710588872.8A CN201710588872A CN107151561B CN 107151561 B CN107151561 B CN 107151561B CN 201710588872 A CN201710588872 A CN 201710588872A CN 107151561 B CN107151561 B CN 107151561B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/10—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal from rubber or rubber waste
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1003—Waste materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The present invention provides a kind of polystyrene foam plastics pyrolysis oil preparation device, belongs to waste resource recovery field.In the present apparatus, after polystyrene foam plastics is rough and torn, screw extrusion device is entered by feed inlet through feed bin, passes through the volume reduction for compressing and rubbing against Shear heating and realizing polystyrene foam plastics of varying pitch screw.Device outer wall exocoel winds electromagnetic induction coil, and the varying pitch screw self-heating in device can be made to become " inner heat source " of heated material.Polystyrene foam plastics can be made to keep the specific residence time in specific region by adjusting screw speed to realize pyrolysis.Pyrolysis gas is discharged into condenser pipe from cavity under condition of negative pressure and is liquefied as oil, and pyrolysis tail gas reduces secondary pollution by activated carbon adsorption.By realizing negative pressure and oxygen-free environment in screw conveying device in the external vacuum pump of device front and back ends.Polystyrene foam plastics used in the present apparatus can effectively reduce the generation of recycling Cleaning Process waste water without cleaning.
Description
Technical field
The present invention relates to waste resource technology fields, refer in particular to a kind of polystyrene foam plastics pyrolysis oil preparation device.
Background technique
Polystyrene foam plastics has the characteristics that light, shock-absorbing, easily molded, price is low, is widely used in electric appliance, instrument
Instruments and meters, the Shockproof packaging of craftwork and fast food packaging.They be mostly it is disposable, discarding amount is big.Due to polyphenyl
Vinylic foam has the characteristics that chemical property is stable, density is small, volume is big, ageing-resistant, anticorrosive, difficult to degrade, gives environment
Bring the pollution got worse.Although the awareness of pollution caused by polystyrene foam plastics is being continuously improved in masses,
But since it greatly facilitates daily life, and the technology of current corresponding substitute product is not yet mature, it is believed that from now on
In a period of time, it will occupy important position in people's lives.Therefore, polystyrene foam plastics yield how is solved
Greatly, the difficult problem of recovery processing, is whole world problem urgently to be resolved.
The study found that handling and utilizing waste old polystyrene foamed plastic, it is allowed to turn waste into wealth, is effective solution polyphenyl second
The basic method of alkene foamed plastics pollution problem.However the recycling of polystyrene foam plastics at present and pessimistic.This is mainly
Due to: on the one hand, polystyrene foam plastics density is low, stacking volume is big, its storage and transportation cost is caused to increase；Another party
Face, traditional handicraft are higher to the amount and quality requirements of foam cutlery box.Generally recycle obtained waste polystyrene foamed plastics, example
Such as useless cutlery box, often containing impurity such as similar greasy dirts, it is difficult to directly utilize.It is such as cleaned, then will lead to a large amount of oily waste water
Water generates, and increases processing cost, reduces income, inhibits the resource utilization of polystyrene foam plastics to a certain extent.
For above-mentioned problem, the present invention is on the basis of taking into account " emission reduction " and " production capacity " Important Thought, conversion recycling thinking,
It is adjusted to direct recycling polystyrene foam plastics cutlery box to be translated into liquid styrene monomer using high temperature pyrolysis technology
Oil is recycled.Based on this, the present invention devises a kind of polystyrene foam plastics pyrolysis oil preparation device, to realize polystyrene
The minimizing and recycling of foamed plastics.Polystyrene foam plastics heats release internal gas at a certain temperature and reaches decrement
Change effect, further increasing temperature can make polystyrene foam plastics pyrolysis be styrene monomer, and realize recycling after condensation,
The pyrolysis oil of recycling can be used as fuel or raw material resourcesization utilize.The present apparatus efficiently solves investment possessed by traditional handicraft
Height, complex process, to polystyrene foam plastics quantity and the higher disadvantage of quality requirements.
Summary of the invention
The present invention solves that polystyrene foam plastics inconvenience transport in tradition, the rate of recovery is low, is difficult to continuous feed, is right
Material quality requires high technical problem.
The technical solution of the invention is as follows provides a kind of polystyrene foam plastics pyrolysis oil preparation device, special character
It is:
The device includes feed system, transmission system, heating system, condenser system, deodoration system and oxygen control system；
Wherein, feed system includes polystyrene foam plastics crushing device and feed inlet；Feed inlet is located at the top of barrel
By proximal portion；Transmission system includes varying pitch screw and fin and motor；From feed inlet after polystyrene foam plastics is rough and torn
Into barrel top end, it is driven by a motor varying pitch screw and fin and is conveyed to barrel end；The spiral shell of varying pitch screw and fin
Away from being gradually reduced from barrel top to end；Polystyrene foam plastics is in barrel gradually by varying pitch screw in transmission process
And fin compacting, and by between polystyrene foam plastics and the friction between varying pitch screw and fin, material tube inner wall, shearing
Realize volume reduction, heat production and the heating of polystyrene foam plastics；Polystyrene foam plastics pyrolysis residue is arranged by end residue slot
It puts；Polystyrene foam plastics be pyrolyzed in barrel institute's calorific requirement remove by between polystyrene foam plastics and with varying pitch screw and
It is also provided by a jacket heating system outside the heat that friction, shearing between fin, material tube inner wall generate；Heating system includes being wrapped in
Electromagnetic induction coil, electromagnetic induction controller, hygrosensor, temperature controller, heat-preservation cotton composition on the outside of barrel；Electromagnetic induction control
The runing time of device processed is controlled by temperature controller；The hygrosensor of heating system may be disposed in detection hole；Detection hole is located at material
Cylinder top is at feed inlet；
The pyrolysis gas that polystyrene foam plastics pyrolysis generates in barrel is collected by condenser system；Condenser system includes barrel
Top gas-guide tube, end gas-guide tube, condenser pipe, liquid collecting bottle and vacuum pump；Polystyrene foam plastics pyrolysis generates in barrel
Pyrolysis gas enters condenser pipe by top gas-guide tube and end gas-guide tube under the negative pressure that vacuum pump provides and condenses into crude styrene
Liquid collecting bottle is collected in after solution；Uncooled exhaust gas discharges after deodoration system purifies；Deodoration system includes containing active carbon or having
The similar air cleaning system composition of several absorption bottles or other function of machine adsorbent；Top gas-guide tube is located at the top of barrel
At feed inlet；Top gas-guide tube at a distance from feed inlet for barrel length 1/15~1/2 at, and be set to feed inlet with
Between detection hole；End gas-guide tube is located at barrel end top；
Present apparatus oxygen control system includes top gas-guide tube, end gas-guide tube, pressure gauge and valve, pressure gauge and valve, oxygen
Gas on-line computing model；The oxygen probe of oxygen on-line computing model is set in detection hole.
Further, detection hole is the 1/10~2/3 of barrel length at a distance from feed inlet；Temperature is by heating in barrel
Temperature controller control unite at 250~600 DEG C；The polystyrene foam plastics volumetric loading of barrel is 2~200kg- polystyrene bubble
Foam plastics/m3Barrel volume h；Residence time of the polystyrene foam plastics in barrel is 0.5~5h.
Further, polystyrene foam plastics handled by the present apparatus is also not necessarily to drying without thoroughly cleaning.
Further, the polystyrene foam plastics that need to handle can be original untreated polystyrene foam modeling
Material also can be cooling solid of the original polystyrene foamed plastics after 105~150 DEG C melt defoaming treatment.
Further, the varying pitch screw and fin are made of the material that can pass through electromagnetic induction heat production, such as stainless
Steel, carbon steel, straight carbon steel etc., and varying pitch screw and fin surface are by the modes firm attachment cinder, oxygen such as being electroplated or loading
Change on the metal oxides such as solid bases or three dichloroxides such as calcium, barium monoxide to reduce pyrolysis temperature.
Further, in the hygrosensor of the heating system and oxygen control system oxygen on-line computing model oxygen probe
It may be provided in the same detection hole, also may be disposed in different detection holes；When being set to different detection holes, Mei Gejian
Gaging hole is all larger than top gas-guide tube at a distance from feed inlet away from the distance of feed inlet；Each detection hole is at a distance from feed inlet
The 1/10~2/3 of barrel length.
Further, when oxygen concentration is higher than 0.5~2% at the detection of oxygen probe in barrel, top gas-guide tube is adjusted
The pressure gage valve in pressure gage valve and end gas-guide tube pipeline in pipeline improves the vacuum degree of top gas-guide tube to lower
Oxygen concentration in barrel is pyrolyzed using pyrolysis gas as protection gas；Device run when, by adjust pressure gage valve and
Pressure gage valve makes 20~500 times of the vacuum degree in the vacuum degree end gas-guide tube pipeline in the gas-guide tube pipeline of top.
The advantageous effects of the above technical solutions of the present invention are as follows:
(1) present apparatus can realize continuous feed, be convenient for actual production；
(2) present apparatus can improve polystyrene foam plastics by compacting, friction, the shearing to polystyrene foam plastics
Heat-conductive characteristic and generate partial heat, reduce be pyrolyzed needed for external heating, reduce energy consumption；
(3) present apparatus is not high to polystyrene foam plastics quality requirements, without thoroughly cleaning and drying, can reduce secondary
The discharge of pollutant；
(4) present apparatus is by setting barrel both ends vacuum degree, using the pyrolysis gas of polystyrene foam plastics as guarantor
Shield gas is pyrolyzed, and production cost is reduced.
(5) present apparatus is pyrolyzed polystyrene foam plastics high-efficient, and recycling styrene-content is higher than 60%, and technique letter
Single, operation and maintenance are easier to.
Detailed description of the invention
Fig. 1 is a kind of polystyrene foam plastics pyrolysis oil preparation apparatus structure schematic diagram of the invention.
[main element symbol description]
1- feed inlet；2- varying pitch screw and fin；3- motor；4- residue slot；5- barrel；The top 6- gas-guide tube；The end 7-
Hold gas-guide tube；8- detection hole；9- pressure gauge and valve；10- pressure gauge and valve；11- condenser pipe；12- liquid collecting bottle；13- absorbs
Bottle；14- vacuum pump.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
As shown in Figure 1, for a kind of polystyrene foam plastics pyrolysis oil preparation apparatus structure schematic diagram of the present invention, the device packet
Include feed system, transmission system, heating system, condenser system, deodoration system and oxygen control system；
Wherein, feed system includes polystyrene foam plastics crushing device and feed inlet 1；Feed inlet is located at the top of barrel 5
Proximal portion is leaned in portion；Transmission system includes varying pitch screw and fin 2 and motor 3；After polystyrene foam plastics is rough and torn from into
Material mouth 1 enters 5 top end of barrel, drives varying pitch screw and fin 2 to convey to 5 end of barrel from motor 3；Varying pitch screw and
The screw pitch of fin 2 is gradually reduced from 5 top of barrel to end；Polystyrene foam plastics in barrel 5 in transmission process gradually
Be compacted by varying pitch screw and fin 2, and by between polystyrene foam plastics and in varying pitch screw and fin 2, barrel
Volume reduction, heat production and the heating of polystyrene foam plastics are realized in friction, shearing between wall；Polystyrene foam plastics pyrolysis residue
It is discharged by end residue slot 4；Polystyrene foam plastics is pyrolyzed institute's calorific requirement in barrel 5 and removes by between polystyrene foam plastics
And the heat that friction, the shearing between varying pitch screw and fin 2, material tube inner wall generate also is provided by a jacket heating system outside；
Heating system includes electromagnetic induction coil, the electromagnetic induction controller, hygrosensor, temperature controller, guarantor for being wrapped in 5 outside of barrel
Warm cotton composition；The runing time of electromagnetic induction controller is controlled by temperature controller；The hygrosensor of heating system may be disposed at inspection
In gaging hole 8；Detection hole 8 is located at 5 top of barrel at feed inlet 1；Detection hole 8 is 5 length of barrel at a distance from feed inlet 1
1/10~2/3；Temperature is controlled by heating system temperature controller at 250~600 DEG C in barrel 5；The polystyrene foam plastics of barrel 5
Volumetric loading is 2~200kg- polystyrene foam plastics/m3Barrel volume h；Polystyrene foam plastics is in barrel 5
Residence time be 0.5~5h；
The pyrolysis gas that polystyrene foam plastics pyrolysis generates in barrel 5 is collected by condenser system；Condenser system includes material
5 top gas-guide tubes 6 of cylinder, end gas-guide tube 7, condenser pipe 11, liquid collecting bottle 12 and vacuum pump 14；Polystyrene foam is moulded in barrel 5
The pyrolysis gas that material pyrolysis generates enters condenser pipe by top gas-guide tube 6 and end gas-guide tube 7 under the negative pressure that vacuum pump 14 provides
11 condense into crude styrene solution after be collected in liquid collecting bottle 12；Uncooled exhaust gas discharges after deodoration system purifies；Deodorization system
The similar air cleaning system composition of several absorption bottles 13 or other function of the system including splendid attire active carbon or organic adsorbent；
Top gas-guide tube 6 is located at 5 top of barrel at feed inlet 1；Top gas-guide tube 6 is 5 length of barrel at a distance from feed inlet 1
At 1/15~1/2, and it is set between feed inlet 1 and detection hole 8；End gas-guide tube 7 is located at 5 end top of barrel；
Present apparatus oxygen control system includes top gas-guide tube 6, end gas-guide tube 7, pressure gauge and valve 9, pressure gauge and valve
10, oxygen on-line computing model；The oxygen probe of oxygen on-line computing model is set in detection hole 8；When oxygen probe inspection in barrel 5
When oxygen concentration is higher than 0.5~2% at survey, the pressure gage valve 9 and end gas-guide tube 7 adjusted in 6 pipeline of top gas-guide tube is managed
Pressure gage valve 10 in road improves the vacuum degree of top gas-guide tube 6 to lower oxygen concentration in barrel 5, utilizes pyrolysis gas
It is pyrolyzed as protection gas；When device is run, by adjusting pressure gage valve 9 and pressure gage valve 10, make top gas-guide tube 6
Vacuum degree in pipeline is 20~500 times of the vacuum degree in 7 pipeline of end gas-guide tube.
Embodiment 1
Polystyrene foam plastics is handled using above-mentioned apparatus.Polystyrene foam plastics is derived from certain supermarket's rubbish
Bucket, is not cleaned.Polystyrene foam plastics puts into reaction unit after crushing, and feed loading is 5kg- polystyrene foam
Plastics/m3Barrel volume h.Reaction unit temperature is controlled by electromagnetic induction temperature controller at 450 DEG C.Polystyrene foam modeling
Expect that the residence time in reaction unit is 1h.Detection hole is the 1/10 of barrel length at a distance from feed inlet, top gas-guide tube
With at a distance from feed inlet be barrel length 1/15.Vacuum degree in the gas-guide tube pipeline of top is true in end gas-guide tube pipeline
50 times of reciprocal of duty cycle.Under the operating conditions described above, polystyrene foam plastics cleavage rate is 45% to the present apparatus, and styrene is in condensation
Concentration is 65% in crude styrene solution.
Embodiment 2
Using the identical device of embodiment 1, reaction unit temperature is controlled by electromagnetic induction temperature controller at 500 DEG C.Polyphenyl
Residence time of the vinylic foam in reaction unit is 2h.Other conditions are same as Example 1.By aforesaid operations condition,
Polystyrene foam plastics cleavage rate is 75%, and styrene concentration in the crude styrene solution of condensation is 70%.
Embodiment 3
Using the identical device of embodiment 1, reaction unit temperature is controlled by electromagnetic induction temperature controller at 550 DEG C.Other
Condition is same as Example 2.By aforesaid operations condition, polystyrene foam plastics cleavage rate is 90%, and styrene is in condensation
Concentration is 68% in crude styrene solution.
Embodiment 4
In the present embodiment, the varying pitch screw and fin of reaction unit load cinder, load factor 50g/m2.Other conditions
It is same as Example 2.By aforesaid operations condition, polystyrene foam plastics cleavage rate is 92%, and styrene is in the crude of condensation
Concentration is 80% in styrene solution.
Embodiment 5
In this example, polystyrene foam plastics is first cooled to solid after 120 DEG C of melting defoaming treatment 2min.After cooling
Solid puts into reaction unit after crushing, and feed loading is 50kg- polystyrene foam plastics/m3Barrel volume h.Other
Condition is same as Example 4.By aforesaid operations condition, polystyrene foam plastics cleavage rate is 89%, and styrene is in condensation
Concentration is 78% in crude styrene solution.
Varying pitch is squeezed and is organically combined with electromagnetic inductive heating principle by the present apparatus, and, electromagnetic induction tapered by screw pitch produces
Heat and the higher pyrolysis gas rate of recovery of device front and back end vacuum degree guarantee effectively solve investment height, technique possessed by traditional handicraft
It is complicated, to foamed plastics quantity and the higher disadvantage of quality requirements, have that continuous feed, high-efficiency thermal decomposition, device be simple, land occupation face
The advantages that product is small, environmental pollution is small.Present apparatus mentality of designing agrees with the theory of national energy conservation and emission reduction and sustainable development, have compared with
For wide application prospect.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, several improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of polystyrene foam plastics pyrolysis oil preparation device, it is characterised in that: the device includes feed system, power train
System, heating system, condenser system, deodoration system and oxygen control system；
Wherein, feed system includes polystyrene foam plastics crushing device and feed inlet (1)；Feed inlet is located at barrel (5) top
Proximal portion is leaned in portion；Transmission system includes varying pitch screw and fin (2) and motor (3)；After polystyrene foam plastics is rough and torn
Enter barrel (5) top end from feed inlet (1), drives varying pitch screw and fin (2) defeated to barrel (5) end from motor (3)
It send；The screw pitch of varying pitch screw and fin (2) is gradually reduced from barrel (5) top to end；Polystyrene foam plastics is being expected
Gradually be compacted by varying pitch screw and fin (2) in cylinder (5) interior transmission process, and by between polystyrene foam plastics and with change
Volume reduction, heat production and the heating of polystyrene foam plastics are realized in friction, shearing between pitch screw and fin (2), material tube inner wall；
Polystyrene foam plastics pyrolysis residue is discharged by end residue slot (4)；Polystyrene foam plastics is pyrolyzed institute in barrel (5)
Calorific requirement is removed to be generated by friction, the shearing between polystyrene foam plastics and between varying pitch screw and fin (2), material tube inner wall
Heat outside also by a jacket heating system provide；Heating system includes electromagnetic induction coil, the electromagnetism being wrapped on the outside of barrel (5)
Induction controller, hygrosensor, temperature controller, heat-preservation cotton composition；The runing time of electromagnetic induction controller is controlled by temperature controller；
The hygrosensor of heating system is set in detection hole (8)；Detection hole (8) is located at the top of barrel (5) close to feed inlet (1)
Place；
The pyrolysis gas that the interior polystyrene foam plastics pyrolysis of barrel (5) generates is collected by condenser system；Condenser system includes barrel
(5) top gas-guide tube (6), end gas-guide tube (7), condenser pipe (11), liquid collecting bottle (12) and vacuum pump (14)；Barrel (5) cohesion
The pyrolysis gas that styrofoam pyrolysis generates is led under the negative pressure that vacuum pump (14) provides by top gas-guide tube (6) and end
Tracheae (7), which enters after condenser pipe (11) condense into crude styrene solution, is collected in liquid collecting bottle (12)；Uncooled exhaust gas is through deodorization
It is discharged after system purification；Deodoration system includes several absorption bottles (13) or other function for containing active carbon or organic adsorbent
Similar air cleaning system composition；Top gas-guide tube (6) is located at the top of barrel (5) at feed inlet (1)；Top gas-guide tube
(6) at a distance from feed inlet (1) and to be set to feed inlet (1) and detection hole (8) at the 1/15 ~ 1/2 of barrel (5) length
Between；End gas-guide tube (7) is located at barrel (5) end top；
Oxygen control system includes top gas-guide tube (6), end gas-guide tube (7), pressure gauge and valve in top gas-guide tube (6) pipeline
(9), the pressure gauge and valve (10), oxygen on-line computing model in end gas-guide tube (7) pipeline；The oxygen of oxygen on-line computing model
Probe is set in detection hole (8)；
Detection hole (8) is the 1/10 ~ 2/3 of barrel (5) length at a distance from feed inlet (1)；Barrel (5) interior temperature is by heating system
Temperature controller control unite at 250 ~ 600 DEG C；The polystyrene foam plastics volumetric loading of barrel (5) is 2 ~ 200 kg- polyphenyl
Vinylic foam/m3Barrel volume h；Residence time of the polystyrene foam plastics in barrel (5) is 0.5 ~ 5 h.
2. a kind of polystyrene foam plastics pyrolysis oil preparation device according to claim 1, it is characterised in that: the polyphenyl
Vinylic foam is original untreated polystyrene foam plastics, or is original polystyrene foamed plastics through 105
Cooling solid after ~ 150 DEG C of melting defoaming treatments.
3. a kind of polystyrene foam plastics pyrolysis oil preparation device according to claim 1, it is characterised in that: the change spiral shell
It is made of away from screw rod and fin (2) the material by electromagnetic induction heat production, and varying pitch screw and fin (2) surface pass through plating
Or to reduce pyrolysis temperature on mode of loading firm attachment cinder, calcium oxide, barium monoxide solid base or aluminum oxide.
4. a kind of polystyrene foam plastics pyrolysis oil preparation device according to claim 1, it is characterised in that: the heating
In the hygrosensor and oxygen control system of system oxygen on-line computing model oxygen probe be arranged in the same detection hole (8) or
It is set in different detection holes；When being set to different detection holes, each detection hole is all larger than away from the distance of feed inlet (1)
Top gas-guide tube (6) is at a distance from feed inlet (1)；Each detection hole is the 1/ of barrel (5) length at a distance from feed inlet (1)
10 ~ 2/3。
5. a kind of polystyrene foam plastics pyrolysis oil preparation device according to claim 1, it is characterised in that: work as barrel
(5) when oxygen concentration is higher than 0.5 ~ 2% at the detection of interior oxygen probe, adjust valve (9) in top gas-guide tube (6) pipeline and
Valve (10) in end gas-guide tube (7) pipeline, the vacuum degree for improving top gas-guide tube (6) are dense to lower barrel (5) interior oxygen
Degree is pyrolyzed using pyrolysis gas as protection gas；When device is run, by adjusting the valve in top gas-guide tube (6) pipeline
Valve (10) in door (9) and end gas-guide tube (7) pipeline, makes the vacuum degree end air guide in top gas-guide tube (6) pipeline
20-500 times for managing the vacuum degree in (7) pipeline.
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| CN201710588872.8A CN107151561B (en) | 2017-07-19 | 2017-07-19 | A kind of polystyrene foam plastics pyrolysis oil preparation device |
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| CN201710588872.8A CN107151561B (en) | 2017-07-19 | 2017-07-19 | A kind of polystyrene foam plastics pyrolysis oil preparation device |
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| CN103252226A (en) * | 2013-05-10 | 2013-08-21 | 王文平 | Catalyst for waste plastic microwave pyrolysis and preparation method thereof |
| CN204185434U (en) * | 2014-11-13 | 2015-03-04 | 王慧忠 | A kind of junked tire low-temperature negative-pressure pyrolysis oil refining furnace |
| CN204773507U (en) * | 2015-07-20 | 2015-11-18 | 河南亚都实业有限公司 | Heating device for medical tubular product extruding machine |
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