CN206457443U - A kind of continuous recovery machine of scrap rubber - Google Patents
A kind of continuous recovery machine of scrap rubber Download PDFInfo
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- CN206457443U CN206457443U CN201720101366.7U CN201720101366U CN206457443U CN 206457443 U CN206457443 U CN 206457443U CN 201720101366 U CN201720101366 U CN 201720101366U CN 206457443 U CN206457443 U CN 206457443U
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- 238000011084 recovery Methods 0.000 title claims abstract description 61
- 229920001971 elastomer Polymers 0.000 title claims abstract description 38
- 239000012530 fluid Substances 0.000 claims abstract description 35
- 238000001125 extrusion Methods 0.000 claims abstract description 21
- 238000002347 injection Methods 0.000 claims abstract description 21
- 239000007924 injection Substances 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 239000011230 binding agent Substances 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 55
- 238000004513 sizing Methods 0.000 claims description 54
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 21
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 8
- 230000009471 action Effects 0.000 description 8
- 230000008929 regeneration Effects 0.000 description 8
- 238000011069 regeneration method Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000003292 glue Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000010008 shearing Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 239000004636 vulcanized rubber Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 229920002209 Crumb rubber Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of continuous recovery machine of scrap rubber, including restoring machine host, supercritical fluid is prepared and injection device, and temperature control system, the recovery machine host includes frame, machine barrel in frame, motor and transmission system, the recovery machine twin-screw being connected with transmission system is provided with the machine barrel, feeding mechanism is set on the machine barrel, the recovery machine twin-screw includes binder area, softened zone, supercritical fluid injection region, restore five functional areas in area and extrusion zone, each functional areas are made up of the screwing element of different structure, added in recuperation disclosed in the utility model without any chemical reagent, energy consumption is low, waste old recovering quality is good, device structure is simple, operational sequence is few, industrial investment is low.
Description
Technical field
The utility model is related to scrap rubber technical field of regeneration, and more particularly to a kind of scrap rubber is exempted from chemical reagent and continuously restored
Machine.
Background technology
Rubber extensive use in society of unique energy, is difficult to natural degradation because its molecular weight is huge,
Substantial amounts of rubber accumulation causes " black pollution " and the wasting of resources.China is rubber consumption big country, but by weather and
The limitation of region, domestic rubber sources wretched insufficiency, therefore realize the recycling utilization of waste old to solving " black dirt
Dye ", fill up rubber sources scarcity and be significant.Traditional " desulfurization of HTHP dynamic " regeneration technology have high energy consumption,
Potential safety hazard is serious, the shortcomings of regeneration effect is poor, process is discontinuous, thus is gradually replaced.Rising in recent years " with machine
For tank " technology, using screw extruder make waste old restore production technology there is simple production process, green, environmental protection, company
The advantages of continuous property strong favorable regeneration effect.
In Chinese patent literature, publication No. is that CN104129057A, a kind of entitled scrap rubber serialization regeneration are de-connected
Disclose a kind of scheme (particular content referring to specification in full) in the document of Plasticator and process, including feeding pressure mechanism,
De-connect mechanism, the part of shaping mechanism three, waste old after feeding pressure mechanism addition, through de-connecting mechanism de-connect effect after,
Compression molding in shaping mechanism.The core of whole equipment is to de-connect mechanism, screw rod by what screw element and driving element were constituted
Element includes rotor set, sound group, bevel gear set.Scheme in the document strengthens machinery and de-connects effect, improves revival
Really, but whole set equipment installs complicated, quiet disk group is designed with machine barrel, the difficulty of processing of equipment is increased and prepares cost,
And chemical reagent is with the addition of in production process, the pollution of reconstituted product is easily caused.
In addition, in Chinese patent literature, publication No. is CN102977404B, a kind of entitled dual-band twin-screw extruder company
A kind of scheme (particular content is referring to specification full text) is disclosed in the document of the continuous method for preparing reclaimed rubber, will be by pretreatment
Shoddy first add after counter rotation twin screw extruder, extrusion and to carry out shear extrusion again into parallel dual-screw extruding machine, make
Standby reclaimed rubber better performances, but whole operation process is complicated, produces line length, repeats heating, cooling operation and causes the energy
Waste.
Supercritical fluid technique is the nearly 30 years chemical industry new technologies grown up, with excellent solvability, mass transfer energy
The advantages of power, low viscosity, high diffusibility, waste old can be rapidly swelled under certain condition, be that waste old recovery is carried
Having supplied may.
In Chinese patent literature, publication No. is CN204454972U, a kind of entitled desulfurization regeneration of waste rubber powder is set
A kind of scheme (particular content is referring to specification full text) is disclosed in standby document, waste and old sizing material occurs de- in the presence of microwave
Reaction of Salmon-Saxl, subsequently enters the first extruder, and what is be connected with the first extruder is supercritical fluid delivery device, in supercritical fluid
Promote regenerative agent to be uniformly distributed in waste rubber powder, sizing material is further regenerated；Second extruder is used for the glue of regeneration
Anticipate type.Sizing material is easily caused backbone breaking by the desulfidation up to ten minutes in whole production process；And production line
Including an electromagnetic heater, two extruderses, a supercritical fluid delivery device, device category is various, and production line is superfluous
Long, one-time investment is huge.
In Chinese patent literature, publication No. be CN202357411U, a kind of entitled supercritical fluid secondary process into
A kind of auxiliary equipment of processing thermoplastic resin is disclosed in the document of complete equipment, the complete equipment is mainly used in supercritical fluid and taken
For plasticizer, the difficulty of processing of thermoplastic resin is reduced.Its application is narrow, it is impossible to is restored for scrap rubber and provides enough shearings
Power.
In summary, existing production equipment and production technology can not meet the requirement of scrap rubber regeneration, therefore, compel to be essential
A kind of new production equipment and technique is wanted to substitute existing equipment and technique.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of continuous recovery machine of scrap rubber, restored with reaching
Added in journey without any chemical reagent, energy consumption is low, and waste old recovering quality is good, device structure is simple, and operational sequence is few,
The low purpose of industrial investment.
To reach above-mentioned purpose, the technical solution of the utility model is as follows：
A kind of continuous recovery machine of scrap rubber, including restore machine host, supercritical fluid preparation and injection device, and temperature control
System, the recovery machine host includes being provided with frame, the machine barrel in frame, motor and transmission system, the machine barrel
Feeding mechanism is set on the recovery machine twin-screw being connected with transmission system, the machine barrel, and the recovery machine twin-screw includes binder
Area, softened zone, supercritical fluid injection region, recovery five functional areas in area and extrusion zone；The binder area includes single head Changeable Lead
Screwing element one；The softened zone includes gear block one, gear block two and the list between gear block one and gear block two
Head thread delivery element；The supercritical fluid injection region includes voltage drop element, and the voltage drop element is one start screw element；Institute
State and restore single head Changeable Lead screwing element two, gear block three, the reverse spiral shell of double end that area includes being sequentially connected by the sizing material direction of motion
It is texel part one, double thread delivery element one, gear block four, double end reverse-flight elements two, double thread delivery element two, big
Lead thread element and double thread delivery element three；The extrusion zone includes Homogenizing Element and double end Changeable Lead screwing element,
The Homogenizing Element is the double thread element that notch is provided with spiral shell rib.
In such scheme, the helical pitch of the single head Changeable Lead screwing element one and single head Changeable Lead screwing element two is along glue
The direction of motion of material is tapered into；The maximum helical pitch size of the single head Changeable Lead screwing element one is identical with spiral shell rib external diameter, most
The size of small helical pitch is 2/3rds of maximum helical pitch size；The maximum helical pitch of the single head Changeable Lead screwing element two is no more than
Spiral shell rib external diameter, minimum helical pitch is not less than 2/3rds of spiral shell rib external diameter.
In such scheme, the gear block one and gear block two are according to 30 ° of mistake by two thick 7 8mm gear blocks
Angle splicing composition is arranged, the gear block three and gear block four are to be spelled by two thick six 8mm gear blocks according to 30 ° of stagger arrangement angle
Connect composition.
In such scheme, the helical pitch and the size phase of spiral shell rib external diameter of the one start screw element of the supercritical fluid injection region
Together.
In such scheme, the maximum helical pitch of the double end Changeable Lead screwing element of the extrusion zone for spiral shell rib external diameter four/
Three, minimum helical pitch is than the few 10mm of maximum helical pitch.
In further scheme, the opening direction of the notch is vertical with place spiral shell rib, and notch is in sizing material flow direction
On volume be gradually reduced.
In further technical scheme, the recovery machine twin-screw is the twin-screw of rotating Vortex, twin-screw rotating Vortex
Shear rate is bigger.
By above-mentioned technical proposal, the continuous recovery machine of scrap rubber that the utility model is provided is controllable using recovery machine offer
Tensile shear is acted synergistically, and C-S, S-S cross-bond in waste old are selectively interrupted under supercritical environment, waste and old rubber is realized
The recovery of glue.The advantage of this programme is in recuperation to add without any chemical reagent, and energy consumption is low, and waste old restores
Quality is good, and device structure is simple, and operational sequence is few, and industrial investment is low.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described.
Fig. 1 is a kind of structural representation of the continuous recovery machine of scrap rubber disclosed in the utility model embodiment；
Fig. 2 is the structural representation of the recovery machine host disclosed in the utility model embodiment；
Fig. 3 is the structural representation of the recovery machine twin-screw disclosed in the utility model embodiment；
Fig. 4 is the structural representation of the softened zone disclosed in the utility model embodiment；
Fig. 5 is the structural representation in the recovery area disclosed in the utility model embodiment；
Fig. 6 is the expanded schematic diagram of Homogenizing Element in a circumferential direction disclosed in the utility model embodiment.
In figure, I, binder area；IIth, softened zone；IIIth, supercritical fluid injection region；IVth, area is restored；Vth, extrusion zone；1st, it is multiple
Former machine host；2nd, supercritical fluid is prepared and injection device；3rd, temperature control system；4th, frame；5th, machine barrel；6th, motor；7th, power train
System；8th, recovery machine twin-screw；9th, feeding mechanism；10th, single head Changeable Lead screwing element one；11st, gear block one；12nd, gear block two；
13rd, one start screw delivery element；14th, voltage drop element；15th, single head Changeable Lead screwing element two；16th, gear block three；17th, double end is anti-
To screwing element one；18th, double thread delivery element one；19th, gear block four；20th, double end reverse-flight elements two；21st, double end
Screw thread delivery element two；22nd, steep-lead thread element；23rd, double thread delivery element three；24th, Homogenizing Element；25th, double end becomes
Lead thread element；26th, notch.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe.
The utility model provides a kind of continuous recovery machine of scrap rubber, and specific embodiment is as follows：
As shown in figure 1, a kind of continuous recovery machine of scrap rubber, including restore machine host 1, supercritical fluid preparation and injection dress
Put 2, and temperature control system 3.As shown in Fig. 2 restoring machine host 1 includes frame 4, the machine barrel 5 in frame 4, motor 6 and passes
It is provided with dynamic system 7, machine barrel 5 on the recovery machine twin-screw 8 for the rotating Vortex being connected with transmission system 7, machine barrel 5 and feeding is set
Mechanism 9；Machine barrel 5 collectively constitutes extrusion system with recovery machine twin-screw 8, completes to the Solid Conveying and Melting of sizing material, softening, restores and crowded
Go out.
As shown in figure 3, recovery machine twin-screw 8 includes realizing the binder area of continuous flow rate, sizing material is softened and the soft of pressure is built
Change area, be that supercritical fluid fully contacts the supercritical fluid injection region of offer sufficient space with waste old, in overcritical ring
That is fully restored under the shear tension synergy of recovery machine twin-screw under border restores area, restores squeezing for the uniform and stable extrusion of glue
Go out five, area functional areas.
Binder area I includes a pair of single head Changeable Lead screwing elements 1, and the structure of single head Changeable Lead screwing element 1 is special
Point is that under conditions of spiral groove depth is constant, thread segment helical pitch is tapered into, so as to reduce flight channel volume.Single head Changeable Lead screw thread
The maximum helical pitch size of element 1 is identical with spiral shell rib external diameter, and the size of minimum helical pitch is 2/3rds of maximum helical pitch size.
It is fed forward into the waste and old sizing material for restoring machine host 1 under the frictional drag effect of recovery machine twin-screw 8, and due to screw channel body
Long-pending diminishing is constantly closely knit, and this provides enough back pressures for the motion of sizing material；The two screw portions engagement cooperated, reason
By can not above accomplish longitudinal opening, transverse seal, but by adjusting spiral shell rib structure, the locomitivity of sizing material in the horizontal is reduced,
It ensure that recovery machine twin-screw has good conveying capacity to sizing material.
As shown in figure 4, softened zone II includes gear block 1, gear block 2 12 and positioned at gear block 1 and gear block
One start screw delivery element 13 between 2 12, gear block 1 and gear block 2 12 be by two thick 7 8mm gear blocks by
Splice composition according to 30 ° of stagger arrangement angles.Rubber hardness after vulcanization is big, it is difficult to deform, and softens heat of the required heat by machine barrel
What the plastic dissipation that transmission and sizing material are produced by shear action was provided, the thickness of gear block and the increase of number are conducive to carrying
The high shear action to sizing material, improves softening efficiency.Gear block is a kind of consumption pressure element in itself, and gear block is defeated with one start screw
Send element to use cooperatively, on the premise of the shear action advantage of gear block has been played, pressure set up in sizing material flow process,
It ensure that good transportation ability of the recovery machine twin-screw to sizing material.Sizing material is engaged at the gap between flowing through gear block
Shear action between block spiral shell rib, because the heat that viscous dissipation is produced accelerates the softening of sizing material, one start screw delivery element
Helical pitch it is with the minimum helical pitch of single head Changeable Lead screwing element one consistent, it is ensured that the conveying capacity of twin-screw, it is to avoid part
Shearing is excessive, causes molecular chain degradation serious.
Supercritical fluid injection region III includes voltage drop element 14, and voltage drop element 14 is one start screw element, one start screw member
The helical pitch of part is identical with the size of spiral shell rib external diameter.Compared to other screwing elements, by increasing helical pitch, make it that there is bigger spiral shell
Sump volume, it is ensured that the strand rolled up in the sizing material being above compacted has enough spaces to realize extension, realizes that sizing material is loose, loosely
Sizing material and supercritical fluid contact area become big, be conducive to improving diffusivity of the supercritical fluid in sizing material, it is ensured that useless
The swelling effect of rubber.
As shown in figure 5, restore area IV include be sequentially connected by the sizing material direction of motion single head Changeable Lead screwing element 2 15,
Gear block 3 16, double end reverse-flight elements 1, double thread delivery element 1, gear block 4 19, double end reverse thread
Element 2 20, double thread delivery element 2 21, steep-lead thread element 22 and double thread delivery element 3 23.Single head, which becomes, leads
The helical pitch of journey screwing element 2 15 is tapered into along the direction of motion of sizing material, and the maximum of single head Changeable Lead screwing element 2 15 is led
Journey is no more than spiral shell rib external diameter, and minimum helical pitch is not less than 2/3rds of spiral shell rib external diameter.Gear block 3 16 and gear block 19 4 be by
Two gear blocks composition thick six 8mm, the head number for reducing gear block is to reduce point that the sizing material after being swelled is subject in order to local
Dissipate immixture, it is to avoid sizing material is caused falling sharply for molecular weight in part by excessive shearing force.Two gear blocks in the region
Stagger arrangement angle be 30 °, with good axial conveying capacity and shear action, between gear block and gear block gap be 2mm, nibble
It is 0.5mm to close gap between block and machine tube inner wall, the Pan Ding of one gear block of mesh regional between gear block and another
The packing of gear block constitutes the closed area that volume can change, the shearing that sizing material is constantly converted in these regions
Tear and stretching action, realize the preliminary recovery of waste and old sizing material.What is be joined directly together with gear block is reverse-flight elements, plays and prolongs
Effect of the long sizing material in the recovery machine internal stops time.Gear block 4 19 plays supplement with double end reverse-flight elements 2 20 and restored
Effect；The structure design of steep-lead thread element 22 is inspired by engagement rotor of internal mixer, a steep-lead thread element
The screw channel of spiral shell rib and another steep-lead thread element constitute variable volume region, sizing material is by extruding repeatedly in the region
Acted on tear, waste and old sizing material is completed final recovery reaction.
The function of extrusion zone V is to lead the extrusion of the sizing material uniformly continuous of recovery, including Homogenizing Element 24 and double end change
Journey screwing element 25, Homogenizing Element 24 is the double thread element that notch 26 is provided with spiral shell rib.Referring to Fig. 6, the opening of notch 26
Direction is vertical with place spiral shell rib, and volume of the notch 26 on sizing material flow direction is gradually reduced.The design of notch 26 is enhanced
The reflowing result of sizing material, is conducive to recovery sizing material being well mixed, and the notch 26 that volume is gradually reduced makes recovery sizing material exist
Volume change occurs when flowing through, plays a part of supplement and restores；And sizing material when flowing through the notch 26 of Volume Changes by
To stretching action play the role of to interrupt a small number of cross-linked networks not yet restored completely.The maximum of double end Changeable Lead screwing element 25
Helical pitch is 3/4ths of spiral shell rib external diameter, and minimum helical pitch is conducive to building for axial compressive force than the few 10mm of maximum helical pitch, lead change
It is vertical, sizing material steady extruding.
The recovery process of the continuous recovery machine of the scrap rubber, including following technical process：
Waste Crumb rubber is added into feeding mechanism, open it is continuous restore machine host 1, sizing material is in self gravitation and feeding mechanism
Effect is lower to enter machine barrel 4, is fed forward, is squeezed when there is sizing material by continuous uniform under the frictional drag effect of recovery machine twin-screw 8
Supercritical fluid is opened when going out to prepare and injection device 2.The mass ratio of supercritical fluid and scrap rubber is 0.005~0.02, multiple
The rotating speed of former machine twin-screw 8 is 40~80r/min, and the temperature control in binder area I is in 50~80 DEG C, the temperature control of softened zone II
At 90~110 DEG C or so, supercritical fluid injection region III and the temperature control in area IV is restored in 120~150 DEG C or so, extrusion zone
V temperature is at 60 DEG C~80 DEG C.
Whole recovery process is completed as follows into the waste and old sizing material for restoring machine host 1：
(1) it is fed forward into the waste and old sizing material for restoring machine host 1 under the frictional drag effect of recovery machine twin-screw 8,
Because the helical pitch in binder area I is tapered into, sizing material becomes closely knit, provides enough back pressures for the motion of sizing material and is fed forward；
(2) sizing material into softened zone II first passes around the shear tension effect of gear block 1, realizes after preliminarily softened
By delivering into gear block 2 12 for one start screw delivery element 13, further softening is realized；
(3) with surpassing in the large space that voltage drop element 14 of the sizing material inside supercritical fluid injection region III after softening is provided
Critical fluids are contacted, and are fully swelled；
(4) enter and restore in area IV, the sizing material being swelled, by shearing splitting and stretching action, passes through in gear block 3 16
In the presence of double end reverse-flight elements 1, the residence time of sizing material is extended, and reaches the effect tentatively restored；It is preliminary multiple
Former sizing material passes through double thread delivery element 1, is again introduced into gear block 4 19 and double end reverse-flight elements 2 20
The sizing material for supplementing recovery is transported to steep-lead thread element by row supplement shearing splitting and stretching, double thread delivery element 2 21
In 22, final recovery reaction is carried out, the sizing material restored completely enters extrusion zone through double thread delivery element 3 23；
(5) in the Homogenizing Element 24 of extrusion zone, after being sufficiently mixed through the irregular flowing of the formation of notch 26, by double end
Changeable Lead screwing element 25 completes whole recovery reaction from extrusion in machine host 1 is restored.
Sizing material is extruded refining shaping after restoring, finally park storage.
Specific embodiment one：
Reaction condition：The mass ratio of supercritical fluid and scrap rubber is 1:100, the rotating speed of recovery machine twin-screw 8 is 60r/
Min, the temperature control in binder area I is at 70 DEG C, and the temperature control of softened zone II is at 100 DEG C, supercritical fluid injection region III and multiple
The temperature control in former area IV is at 135 DEG C, and the temperature of extrusion zone V is 70 DEG C.
Through measuring, the performance of glue is restored：Ash content=7.0%, acetone extract=17.0%, Mooney viscosity ML100
DEG C (1+4min)=45；According to GB/T13460-2008, sulfurizing formula vulcanizes again, obtains mechanical property of vulcanized rubber as follows:Tensile strength
=15.3MPa, elongation rate of tensile failure=474.47%.
Specific embodiment two：
Reaction condition：The mass ratio of supercritical fluid and scrap rubber is 2:100, the rotating speed of recovery machine twin-screw 8 is 80r/
Min, the temperature control in binder area I is at 55 DEG C, and the temperature control of softened zone II supercritical fluid injection region III and is restored at 90 DEG C
The temperature control in area IV is at 125 DEG C, and the temperature of extrusion zone V is 60 DEG C.
Through measuring, the performance of glue is restored：Ash content=6.5%, acetone extract=16.2%, Mooney viscosity ML100
DEG C (1+4min)=40；According to GB/T13460-2008, sulfurizing formula vulcanizes again, obtains mechanical property of vulcanized rubber as follows:Tensile strength
=14.9MPa, elongation rate of tensile failure=500.07%.
Specific embodiment three：
Reaction condition：The mass ratio of supercritical fluid and scrap rubber is 1:100, the rotating speed of recovery machine twin-screw 8 is 50r/
Min, the temperature control in binder area I is at 75 DEG C, and the temperature control of softened zone II is at 110 DEG C, supercritical fluid injection region III and multiple
The temperature control in former area IV is at 145 DEG C, and the temperature of extrusion zone V is 75 DEG C.
Through measuring, the performance of glue is restored：Ash content=7.2%, acetone extract=17.4%, Mooney viscosity ML100
DEG C (1+4min)=48；According to GB/T13460-2008, sulfurizing formula vulcanizes again, obtains mechanical property of vulcanized rubber as follows:Tensile strength
=15.7MPa, elongation rate of tensile failure=468.98%.
Explanation：National superfine Al standards:Ash content≤10%, acetone extract≤18%, ML100 DEG C of (1+ of Mooney viscosity
4min)≤95, tensile strength >=14.0Mpa, elongation at break >=420%.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can in other embodiments be realized in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (7)
1. a kind of continuous recovery machine of scrap rubber, including restore machine host, supercritical fluid preparation and injection device, and temperature control system
System, the recovery machine host includes frame, the machine barrel in frame, motor and transmission system, be provided with the machine barrel with
Feeding mechanism is set on the connected recovery machine twin-screw of transmission system, the machine barrel, it is characterised in that the recovery machine twin-screw
Including binder area, softened zone, supercritical fluid injection region, recovery five functional areas in area and extrusion zone；The binder area includes single
Head Changeable Lead screwing element one；The softened zone includes gear block one, gear block two and positioned at gear block one and gear block two
Between one start screw delivery element；The supercritical fluid injection region includes voltage drop element, and the voltage drop element is single head spiral shell
Texel part；It is single head Changeable Lead screwing element two that the recovery area includes being sequentially connected by the sizing material direction of motion, gear block three, double
Head reverse-flight elements one, double thread delivery element one, gear block four, double end reverse-flight elements two, double thread conveying
Element two, steep-lead thread element and double thread delivery element three；The extrusion zone includes Homogenizing Element and double end Changeable Lead
Screwing element, the Homogenizing Element is the double thread element that notch is provided with spiral shell rib.
2. a kind of continuous recovery machine of scrap rubber according to claim 1, it is characterised in that the single head Changeable Lead screw thread member
The helical pitch of part one and single head Changeable Lead screwing element two is tapered into along the direction of motion of sizing material；The single head Changeable Lead screw thread
The maximum helical pitch size of element one is identical with spiral shell rib external diameter, and the size of minimum helical pitch is 2/3rds of maximum helical pitch size；Institute
State single head Changeable Lead screwing element two maximum helical pitch be no more than spiral shell rib external diameter, minimum helical pitch be not less than spiral shell rib external diameter three/
Two.
3. the continuous recovery machine of a kind of scrap rubber according to claim 1, it is characterised in that the gear block one and gear block
Two are made up of two thick 7 8mm gear blocks according to 30 ° of stagger arrangement angle splicing, the gear block three and gear block four be by
Two thick six 8mm gear blocks splice according to 30 ° of stagger arrangement angle to be constituted.
4. a kind of continuous recovery machine of scrap rubber according to claim 1, it is characterised in that the supercritical fluid injection region
One start screw element helical pitch it is identical with the size of spiral shell rib external diameter.
5. the continuous recovery machine of a kind of scrap rubber according to claim 1, it is characterised in that the double end of the extrusion zone, which becomes, to be led
The maximum helical pitch of journey screwing element is 3/4ths of spiral shell rib external diameter, and minimum helical pitch is than the few 10mm of maximum helical pitch.
6. the continuous recovery machine of a kind of scrap rubber according to claim 1, it is characterised in that the opening direction of the notch with
Place spiral shell rib is vertical, and volume of the notch on sizing material flow direction is gradually reduced.
7. the continuous recovery machine of a kind of scrap rubber according to claim 1, it is characterised in that the recovery machine twin-screw is same
To the twin-screw of rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720101366.7U CN206457443U (en) | 2017-01-25 | 2017-01-25 | A kind of continuous recovery machine of scrap rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720101366.7U CN206457443U (en) | 2017-01-25 | 2017-01-25 | A kind of continuous recovery machine of scrap rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206457443U true CN206457443U (en) | 2017-09-01 |
Family
ID=59695171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720101366.7U Active CN206457443U (en) | 2017-01-25 | 2017-01-25 | A kind of continuous recovery machine of scrap rubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206457443U (en) |
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2017
- 2017-01-25 CN CN201720101366.7U patent/CN206457443U/en active Active
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