CN102107466B - Production method for mixing rubber material at low temperature - Google Patents
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- CN102107466B CN102107466B CN200910256550.9A CN200910256550A CN102107466B CN 102107466 B CN102107466 B CN 102107466B CN 200910256550 A CN200910256550 A CN 200910256550A CN 102107466 B CN102107466 B CN 102107466B
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- 239000000463 material Substances 0.000 title claims abstract description 93
- 238000002156 mixing Methods 0.000 title claims abstract description 91
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 35
- 230000008569 process Effects 0.000 claims abstract description 21
- 238000005516 engineering process Methods 0.000 claims abstract description 6
- 238000004513 sizing Methods 0.000 claims description 73
- 238000001816 cooling Methods 0.000 claims description 26
- 239000013589 supplement Substances 0.000 claims description 18
- 239000003292 glue Substances 0.000 claims description 16
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- 238000002844 melting Methods 0.000 claims description 15
- 230000008018 melting Effects 0.000 claims description 15
- 229910000077 silane Inorganic materials 0.000 claims description 15
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 13
- 239000003814 drug Substances 0.000 claims description 13
- 239000006229 carbon black Substances 0.000 claims description 12
- 238000003490 calendering Methods 0.000 claims description 11
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 9
- 238000013329 compounding Methods 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 239000005864 Sulphur Substances 0.000 claims description 7
- 238000010058 rubber compounding Methods 0.000 claims description 7
- 238000010008 shearing Methods 0.000 claims description 7
- 239000004615 ingredient Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 5
- 230000032258 transport Effects 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 238000010074 rubber mixing Methods 0.000 abstract description 5
- 230000009469 supplementation Effects 0.000 abstract 3
- 238000010092 rubber production Methods 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000007248 oxidative elimination reaction Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Abstract
A production method for mixing rubber material at a low temperature adopts a novel rubber mixing method improved on the basis of a low-temperature mixing principle so as to realize the high-quality and high-efficiency novel technology of mixed rubber production. An internal mixer is utilized and low-temperature mixing and low-temperature material discharge are taken as the objective function, a plurality of full automatic open mills are configured at the lower part of the internal mixer, supplementation mixing is carried out under low-temperature conditions so as to achieve automatic curing temperature, and the low-temperature mixing is ensured during the integral rubber material manufacturing process, and the purpose of high-quality and high-efficiency mixed rubber production can be achieved. The rubber material is put in the internal mixer so as to be mixed, the rubber material is discharged to an open mill number 1 after reaching the temperature reuquired by the technology and then rubber smashing and temperature reduction are carried out, then rubber material is conveyed to one of the open mills in an open mill set through a conveying device and the supplementation mixing is carried out, and the rubber material that is processed through the supplementation mixing is conveyed to an open mill number 8 and the piece unloading process can be carried out.
Description
Technical field
The present invention is a kind of mixing production method of low temperature that improves elastomeric compound quality, belongs to rubber tyre production field.
Background technology
Along with constantly bringing forth new ideas of rubber tyre manufacturing technology, adopt the compounding process of high efficiency, high-quality can effectively improve tire production quality and safety in utilization for various sizing material formula.
Rubber compounding method is mainly conceived to following 2 aspects at present, and the one, ensureing on the basis of rubber physical mechanical property how to improve the overall uniformity of auxiliary agent dispersiveness and sizing material; The 2nd, how to enhance productivity and to reduce labour cost.By improve raw material, rubber mixing technique and rubber preparing device promote melting efficiency and quality accomplish implemented at large.Improve automaticity, the minimizing amount of labour and manual intervention that rubber compounding is produced simultaneously, also can further improve sizing material stability and cut down finished cost.
The compounding process that existing home and abroad tyre production enterprise is taked is mainly mixing as main taking multisection type, rubber mixing technique (as shown in rear accompanying drawing 1) and the configuration device of the method are mainly, rubber master batch sizing material carries out multisection type on banbury in subsidiary engine mixing, and banbury is discharge in 150-165 DEG C of situation.1 screw extruder of Mixer Down-stream Eqiupment configuration or 1 to 2 mill supplement mixing, and each section of mixing cycle need to continue about 1.5 to 3.5 minutes because of the difference of rotor speed.
The multisection type compounding process of this quasi-tradition, its shortcoming is that sizing material is mixing under higher temperature conditions, be easy to reduce the quality of elastomeric compound, particularly finished composition uniformity is poor, thereby the investment of lower, the overall banburying equipment of efficiency that directly causes rubber tyre sizing material to be produced is higher.
And for example following earlier application patent, application number 200610171068.1, title parallel auxiliaries type technique of one step for refining rubber, its scheme is only to adopt a banbury, sizing material is through the mixing and cooling process of compressing tablet that once heats up.Lower subsidiary engine is equipped with at least 4 mills, except First mill connects glue cooling and last mill slice, remaining mill is that relation in parallel is as adding the mixing use of sulphur, supplement after mixing end sizing material by last mill compressing tablet deliver on batch off unit, carry out cooling, thereby complete whole mixing process.
There is following subject matter and deficiency in above-mentioned earlier application patent:
1, masterbatch dump temperature is higher, and in the time that mill is supplementary mixing, carbon black is difficult for disperseing, and under hot conditions, is easy to oxidation;
2, lack the temperature subregion in banbury variable-speed calendering process, cannot accurately control dump temperature for different formulations as the sizing material that whether is added with white carbon and silane coupler, the oxidative cleavage that is easy to form rubber molecule, branching reaction is more, and low-molecular material produces also morely;
3, the mixing cycle of per car sizing material is longer, is unfavorable for the raising of production efficiency;
4, the dispersion of materials such as Sulfur, the promoter speed, the uniformity that in mill, add are lower.
Summary of the invention
The production method of mixing rubber material at low temperature of the present invention, is to address the above problem and takes according to the improved new type rubber compounding process of low temperature melting principle, to realize high-quality, high efficiency elastomeric compound production new technique.
Goal of the invention is, use that banbury is mixing taking low temperature, low temperature discharge is core, below banbury, configure many full-automatic mills and under cryogenic conditions, supplement mixing automatically to add sulphur, the low temperature that ensures whole sizing material production process is mixing, realizes and improves elastomeric compound production high-quality, high efficiency object.
For achieving the above object, the production method of described mixing rubber material at low temperature, only be provided with the banbury of an and discharge mixing for low temperature, below banbury, be connected with one in turn for connecing glue cooling and mixing 1# mill, at least 2 be connected in parallel, mixing and add the mixing mill group of sulphur for supplementing low temperature, an and 8# mill that connects the cooling production line of follow-up film.
It is mixing that sizing material is thrown glue in banbury, reach and be discharged to 1# mill after technological requirement temperature and smash glue cooling, be transported to and in 1 mill in mill group, supplement mixingly through conveying device again, supplementary sizing material after mixing is transported to 8# mill and carries out lower processing.
Other mills in mill group receive after the sizing material that 1# mill transports, and adopt identical supplementary mixing and be pooled to successively 8# mill and carry out lower processing.
Difference with the prior art part is, in described banbury, load weighted carbon black and other compounding ingredient, rubber except finished composition medicine is added in the lump, disposable mixing to carry out.
For the sizing material that does not contain white carbon and silane coupler in formula, control the dump temperature of banbury between 130 to 135 DEG C; For the sizing material that contains white carbon and silane coupler in formula, control the dump temperature of banbury between 140 to 145 DEG C.
As above-mentioned basic scheme, different formulations masterbatch dump temperature is controlled between 125～145 DEG C, supplements when mixing in follow-up mill, add the carbon black in masterbatch to be easy to disperse, avoid occurring high-temperature oxydation, and strength is higher.
In addition, such scheme is conducive to shorten the production cycle, only produces rubber master batch and adopt variable-speed calendering and contrary mixed method in banbury, and the little medicines of solid such as rubber and little medicine and carbon black add banbury together with first.In the time that banbury internal sizes temperature changes, adopt different rotating speeds and the calendering process of time.
Control melting temperature for further enhancing productivity, being convenient to, can take following improvement project:
In described banbury, for the sizing material that contains white carbon and silane coupler in formula, after dropping into white carbon and silane coupler, the duration of controlling between 140 to 145 DEG C of rubber compounding temperature is 3 minutes.
Distribute for reducing rubber molecule oxidative cleavage problem, branching reaction and molecular weight rubber, to improve the physical properties such as the breaking strength of sizing material, wear-resisting and endurance, in described banbury, in the time that melting temperature is below 120 DEG C, rotor adopts rotating speed, ram piston pressure more than 45rpm to be controlled at 0.5Mpa;
In the time that melting temperature reaches more than 120 DEG C, rotating speed, the ram piston pressure of rotor employing 30 to 35rpm are controlled at 0.3Mpa.
For optimizing integrated artistic flow process and enhancing productivity, reasonable arrangement is follow-up supplementary mixing from the different train number sizing materials of banbury row, in described 1# mill, adopt the roller of frequency control, hydraulic pressure automatic distance-adjusting to carry out mechanical shearing and cooling processing to sizing material, and control treatment cycle within 3 minutes.
To sum up content, the production method of mixing rubber material at low temperature of the present invention has the following advantages and beneficial effect:
1, realized a kind of low temperature production process for milling of refinement, according to low temperature melting principle, traditional multisection type and one-stage process rubber mixing technique are improved, improve elastomeric compound quality and production efficiency, by reducing the amount of labour and manual intervention, directly improved tire workmanship, reduced costs.
2, the present invention can be applicable to the production of various tyre stocks, comprises bias tire, half steel tire, all steel tire and engineering tire.
3, for different sizing compound formulas, to realize elastomeric compound and under cryogenic conditions, carried out mixingly, rubber molecule oxidative cleavage is less, and branching reaction is less, and low-molecular material produces less, molecular weight rubber narrow distribution.
4, by improving low temperature mechanical shearing, effectively avoid producing carbon gel in rubber compounding process, make compounding ingredient dispersing uniformity higher, carbon black dispension degree is better.
5, take many parallel mills to distribute, supplement the mixing quantity that can effectively improve reversible machine shearing strand, kept the high-intensity performance of sizing material, improved the breaking strength of sizing material, wear-resisting and fatigue performance.
6, production efficiency is higher, carry out mixing and low temperature discharge at high speed banbury, lower subsidiary engine configuration many mills in parallel all realize automation, and supplementary mixing latter stage automatic sulphurization, promoter, the mixing production cycle of whole once-through method is about 18-21 minute.
Brief description of the drawings
Now the present invention is described further by reference to the accompanying drawings
Fig. 1 is the schematic flow sheet of existing multisection type production process for milling;
Fig. 2 is the configuration of production method equipment and the process chart of mixing rubber material at low temperature of the present invention.
Detailed description of the invention
Embodiment 1, as shown in Figure 2, the production method of described mixing rubber material at low temperature, is only provided with the banbury of an and discharge mixing for low temperature, below banbury, is connected with in turn:
Lower the temperature and mixing 1# mill for connecing glue for one,
6 be connected in parallel, mixing and add mixing 2# to the 7# mill of sulphur for supplementing low temperature,
One connects the 8# mill of the cooling production line of follow-up film,
It is mixing that sizing material is thrown glue in banbury, reach and be discharged to 1# mill after technological requirement temperature and smash glue cooling, be transported to and in the 2# mill in mill group, supplement mixingly through conveying device again, supplementary sizing material after mixing is transported to 8# mill and carries out lower processing
3# to 7# mill in mill group, receives other train number sizing materials that 1# mill transports successively, and adopts identical supplementary calendering process, after 3# to 7# mill is supplementary mixing, is to be also transported in turn, separately 8# mill to carry out lower processing.
Described in the present embodiment, the process characteristic of production method is:
1, masterbatch dump temperature is 125～145 DEG C, rubber master batch is supplemented mixingly in special mill, promotes the dispersion of carbon black, and strengthening mechanical shearing, avoids high-temperature oxydation;
2, in banbury, carry out variable-speed calendering, in mill, carry out the supplementary mixing of displacement, speed change and add vulcanizing system.
3, the medicine such as Sulfur, promoter adding in mill adopts the mode of rubber master batch granulation, prevents from that medicine from spilling to disperse, and improves speed and the uniformity that medicine disperses.
4, automaticity is high, and production line is realized full-automatic production.Carbon black and softening oil are automatically prewired, and automatic charging, is opened refining, cooling pendulum automatic operation etc. at banburying, only need 2 people's operations completely.
5, with short production cycle, efficiency is high.For the shortening cycle, banbury is only produced rubber master batch, is used variable-speed calendering and contrary mixed method; The little medicine of the solids such as rubber and little medicine and carbon black adds banbury together with first, when temperature of charge is not high in banbury, uses high rotating speed mixing, and variable-speed calendering after temperature raises, is convenient to control melting temperature.Meanwhile, sizing material dump temperature is lower than traditional rubber mixing technique, within banbury cycle 3 minutes.In mill, supplement mixing to 95 to 100 DEG C and add vulcanizing system masterbatch.Open and refined rear temperature and reach 50～60 DEG C, cooling rear pendulum temperature is 30 DEG C of left and right.
Described in the present embodiment, in banbury, load weighted carbon black, oil plant and other compounding ingredient, rubber except finished composition medicine are added in the lump, contrary mixing mixing to carry out.
For the sizing material that contains white carbon and silane coupler in formula, after dropping into white carbon and silane coupler, the duration of controlling between 140 to 145 DEG C of rubber compounding temperature is 3 minutes.
In described banbury, in the time that melting temperature is below 120 DEG C, rotor adopts rotating speed, ram piston pressure more than 45rpm to be controlled at 0.5Mpa;
In the time that melting temperature reaches more than 120 DEG C, rotating speed, the ram piston pressure of rotor employing 30 to 35rpm are controlled at 0.3Mpa.
The mixing production technology of described low temperature has following steps:
The 1st step, by load weighted carbon black, oil plant and together with other compounding ingredient finished composition medicine, rubber, add on banbury, in subsidiary engine, carry out mixing; Variable-speed calendering mode, selects 4 rib NST rotors, and rotor speed control is between 6-60rpm; Control ram piston pressure also can regulate according to sizing compound formula and calendering process below 0.6Mpa; After above-mentioned solid powder is knocked down in banbury, in the time that melting temperature is below 120 DEG C, rotor adopts rotating speed, ram piston pressure more than 45rpm to be controlled at 0.5Mpa; In the time that melting temperature reaches more than 120 DEG C, rotating speed, the ram piston pressure of rotor employing 30 to 35rpm are controlled at 0.3Mpa; Control softening wet goods oil plant is put in banbury after powder;
For the sizing material that does not contain white carbon and silane coupler in formula, control the dump temperature of banbury between 130 to 135 DEG C; For the sizing material that contains white carbon and silane coupler in formula, control the dump temperature of banbury between 140 to 145 DEG C;
The 2nd step, the sizing material from banbury row is discharged to 1# mill and carries out lower processing, mixing to supplement; Smash glue 3-5 and make sizing material reduce as far as possible temperature back and forth, sizing material is controlled within 3 minutes at the mixing time of 1# mill;
In 1# mill, adopt the roller of frequency control, hydraulic pressure automatic distance-adjusting to carry out mechanical shearing to sizing material and process with cooling, roller speed ratio is that 1: 1.09 and forward and backward roller are boring plain-barreled roll;
For making the block sizing material from banbury row be ground into as soon as possible sheet, in the time starting, adopt quick, large roll spacing to refine gluey state, when whole sizing materials are by after 1-2 mill roll gap, reduce roller rotating speed and roll spacing;
The 3rd step, sizing material is transported to the 2# mill of mill group from 1# mill,
Sizing material continues to supplement mixing in this mill, and temperature is down to 100 DEG C when following, supplements mixingly to finish with cooling procedure, starts to add vulcanizing system masterbatch, and the roller speed ratio of this mill is 1: 1.14, and other various technological parameters are identical with 1# mill; Whole process all needs employing to smash glue device and smashes glue, and sizing material is controlled between 16-18 minute at the mixing cycle of this mill;
When sizing material is supplementary mixing, roll spacing is adjusted to 3mm left and right, and while starting to add sulphur, roll spacing is adjusted to about 3.5mm;
Add the sulphur time (masterbatch starts to contact sizing material and all sneaks in sizing material to little medicine) after about 1 minute, then increase roll spacing and carry out mixing to about 4.0mm;
After mixing approximately 7 to 9 minutes, about 6mm is transferred in roll spacing, and sizing material is drained into sheet mill under 8#.
The 4th step, sizing material is transported to 8# mill and carries out lower processing, continues cooling mixing in 8# mill; Adopt forward and backward roller to be the roller of hollow cooling structure, preliminary roller linear velocity 3-30m/min, DC speed regulation 1: 1.09.
Roll adjustment mode is manual roll adjustment, and roll adjustment scope is 0.5-12mm.
First roll spacing is adjusted between 5-6mm, until all logical going over after roll gap of whole sizing materials, then roll spacing is adjusted between 3-4mm and carries out mixing operation, approximately experience 1.5-2.0 minute and roll spacing is adjusted to 6mm left and right later.
It is cooling that interleaving agent tank is entered in binder removal flow, subsequently film be transported to that the cooling production line of film is lowered the temperature, air-dry, pendulum be finally delivered to storage area, has so far refined end from the lower car sizing material of banbury row.
The sizing material of other train numbers from banbury row, is sequentially delivered in 3# to 7# mill in parallel by 1# mill respectively, and these 6 mills are proceeded to supplement mixing separately, and sizing material is finally transported to separately 8# mill and carries out lower processing.
Because 3# to 7# mill is in parallel with 2# mill, the equipment configuration of 3# to 7# mill and mixing process and 2# are in full accord.
Claims (5)
1. a production method for mixing rubber material at low temperature, is provided with the banbury of an and discharge mixing for low temperature, below banbury, is connected with in turn,
Lower the temperature and mixing 1# mill for connecing glue for one,
For supplement low temperature mixing and add sulphur mixing, the mill group that comprises at least 2 mills that are connected in parallel, and,
One connects the 8# mill of the cooling production line of follow-up film,
It is mixing that sizing material is thrown glue in banbury, reach and be discharged to 1# mill after technological requirement temperature and smash glue cooling, be transported to and in 1 mill in mill group, supplement mixingly through conveying device again, supplementary sizing material after mixing is transported to 8# mill and carries out lower processing
Other mill in mill group receives after the sizing material that 1# mill transports, adopt identical supplementary mixing and be pooled to successively 8# mill and carry out lower processing,
It is characterized in that: added in banbury by carbon black, oil plant and other compounding ingredient except finished composition medicine, solid powder that rubber forms load weighted, contrary mixing mixing to carry out;
For the sizing material that does not contain white carbon and silane coupler in formula, control the dump temperature of banbury between 130-135 DEG C;
For the sizing material that contains white carbon and silane coupler in formula, control the dump temperature of banbury between 140-145 DEG C.
2. the production method of mixing rubber material at low temperature according to claim 1, it is characterized in that: in described banbury, for the sizing material that contains white carbon and silane coupler in formula, after dropping into white carbon and silane coupler, the duration of controlling between 140-145 DEG C of rubber compounding temperature is 3 minutes.
3. the production method of mixing rubber material at low temperature according to claim 1 and 2, is characterized in that: in described banbury, in the time that melting temperature is below 120 DEG C, rotor adopts rotating speed, ram piston pressure more than 45rpm to be controlled at 0.5MPa;
In the time that melting temperature reaches more than 120 DEG C, rotor adopts rotating speed, the ram piston pressure of 30-35rpm to be controlled at 0.3MPa.
4. the production method of mixing rubber material at low temperature according to claim 3, it is characterized in that: in described 1# mill, adopt the roller of frequency control, hydraulic pressure automatic distance-adjusting to carry out mechanical shearing and cooling processing to sizing material, and control treatment cycle within 3 minutes.
5. the production method of mixing rubber material at low temperature according to claim 4, is characterized in that: the production technology of described mixing rubber material at low temperature has following steps,
The 1st step, by load weighted by carbon black, oil plant and other compounding ingredient except finished composition medicine, solid powder that rubber forms add on banbury, in subsidiary engine, carry out mixing; Variable-speed calendering mode, selects 4 rib NST rotors, and rotor speed control is between 6-60rpm; Control ram piston pressure also can regulate according to sizing compound formula and calendering process below 0.6MPa; After above-mentioned solid powder is knocked down in banbury, in the time that melting temperature is below 120 DEG C, rotor adopts rotating speed, ram piston pressure more than 45rpm to be controlled at 0.5MPa; In the time that melting temperature reaches more than 120 DEG C, rotor adopts rotating speed, the ram piston pressure of 30-35rpm to be controlled at 0.3MPa;
For the sizing material that does not contain white carbon and silane coupler in formula, control the dump temperature of banbury between 130-135 DEG C; For the sizing material that contains white carbon and silane coupler in formula, control the dump temperature of banbury between 140-145 DEG C;
The 2nd step, the sizing material from banbury row is discharged to 1# mill and carries out lower processing, mixing to supplement; Smash glue 3-5 and make sizing material reduce as far as possible temperature back and forth, sizing material is controlled within 3 minutes at the mixing time of 1# mill; ,
In 1# mill, adopt the roller of frequency control, hydraulic pressure automatic distance-adjusting to carry out mechanical shearing and cooling processing to sizing material, roller speed ratio is that 1:1.09 and forward and backward roller are boring plain-barreled roll;
For making the block sizing material from banbury row be ground into as soon as possible sheet, in the time starting, adopt quick, large roll spacing to refine gluey state, when whole sizing materials are by after 1-2 mill roll gap, reduce roller rotating speed and roll spacing;
The 3rd step, sizing material is transported to the 1st mill of mill group from 1# mill,
Sizing material continues to supplement mixing in this mill, and temperature is down to 100 DEG C when following, supplements mixingly to finish with cooling procedure, starts to add vulcanizing system masterbatch, and the roller speed ratio of this mill is 1:1.14, and other various technological parameters are identical with 1# mill; Whole process all needs employing to smash glue device and smashes glue, and sizing material is controlled between 16-18 minute at the mixing cycle of this mill;
The 4th step, sizing material is transported to 8# mill and carries out lower processing, continues cooling mixing in 8# mill; Adopt forward and backward roller to be the roller of hollow cooling structure, first roll spacing is adjusted between 5-6mm, until all logical going over after roll gap of whole sizing materials, then roll spacing is adjusted between 3-4mm and carries out mixing operation, approximately experience 1.5-2.0 minute and roll spacing is adjusted to 6mm left and right later:
Binder removal flow intake chamber is cooling, subsequently film be transported to that the cooling production line of film is lowered the temperature, air-dry, pendulum be finally delivered to storage area, has so far refined end from the lower car sizing material of banbury row;
The sizing material of other train number from banbury row, sequentially be delivered in mill group in other mill in parallel with the 1st mill by 1# mill respectively, mill in parallel is proceeded to supplement mixing separately, and the sizing material of different train numbers is finally transported to separately 8# mill and carries out lower processing.
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