CN101941252B - A kind of compounding process strengthening Mixer Down-stream Eqiupment - Google Patents
A kind of compounding process strengthening Mixer Down-stream Eqiupment Download PDFInfo
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- CN101941252B CN101941252B CN201010270543.7A CN201010270543A CN101941252B CN 101941252 B CN101941252 B CN 101941252B CN 201010270543 A CN201010270543 A CN 201010270543A CN 101941252 B CN101941252 B CN 101941252B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
- B29B7/7495—Systems, i.e. flow charts or diagrams; Plants for mixing rubber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
- B29B7/18—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft
- B29B7/183—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft having a casing closely surrounding the rotors, e.g. of Banbury type
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Abstract
The invention discloses a kind of compounding process strengthening the shearing dispersion of Mixer Down-stream Eqiupment and the strengthening Mixer Down-stream Eqiupment of mixing effect.The method is selected a high speed banbury and associated 1 ~ 3 Mixer Down-stream Eqiupment to form and is disposablely completed mixing banbury production line, adopts that roller cools, misting cooling and the collaborative sizing material cooling method of conveyer belt cooling, and film is cooled to less than 75 DEG C; Take the mode adding sulphur masterbatch add sulphur and supplement mixing, make the decentralization of sizing material at least reach 6 grades, Mooney viscosity reaches qualified index ± 4 Mooney.Employing invention increases production efficiency, improves sizing material quality, has saved energy, has decreased the use of Active workings area and forklift, and reduced operator's labour intensity, saves artificial.
Description
Technical field
The present invention relates to the mixing technology of Mixer Down-stream Eqiupment, specifically refer to a kind of compounding process strengthening Mixer Down-stream Eqiupment that rubber compounding process can be made once to complete on banbury production line.
Technical background
Since F.HBanbury has invented Ben Baili banbury so far, mixer mixing progressively becomes the main and common mode in modern calendering process.Initial banbury production line, generally by one at a slow speed banbury join a mill and form, after mixer mixing completes, sizing material is discharged in mill and carries out cooling, adding sulphur and supplement mixing, this compounding process is called one section of mixing method, whole mixing process once completes on banbury production line, centre does not have compressing tablet cooling and the parking period of sizing material, and this method is generally only applicable to the rubber compounding that compound viscosity is lower, formula loading is less.Current banbury production line, generally join one by a high speed banbury and extrude tablet press machine or two two roller tablet press form, the rotating speed of banbury is generally 20/40r/min, 30/45r/min or higher rotating speed, and capacity is 270 liters, 370 liters or larger capacity.Along with the raising of the rotating speed of banbury, pressure and capacity, shear action increases, and sizing material temperature rises faster, usual sizing material dust dispersion quality does not also reach requirement, and temperature rises to the limit, reaches 160 ~ 170 DEG C, so can only terminate mixing, sizing material is discharged on downwind scheme and carries out cooling press sheet.For this reason, obtain the elastomeric compound that quality requirement is good, rubber compounding process will complete several times.What first carry out is slightly mixing, normally use high speed banbury (more than 40r/min) high pressure mixing, obtained sizing material contains the compounding ingredient except sulphur and promoter, i.e. so-called carbonblack master batch, when sizing material Mooney viscosity is comparatively large or packing strengthening agent consumption is more, sizing material is through compressing tablet cooling with after parking, also must second, third time even the 4th input banbury carry out two sections, three sections even four sections mixing, Mooney viscosity needed for could obtaining and decentralization, this stage is called the milling maternal rubber stage.Carbonblack master batch obtains required Mooney viscosity and decentralization, through compressing tablet cooling with after parking, dropping into banbury (20r/min or 30r/min) at a slow speed again carries out mixing, add sulphur and promoter, finally elastomeric compound is discharged to compressing tablet cooling on tablet press machine, finally complete whole mixture operations of sizing material, this stage is called the whole refining stage.This compounding process is commonly referred to as two sections of mixing methods, namely the current topmost mixing technology method of banbury production line.For tire industry, current most sizing compound formula is all adopt this mixing technology method.
For one section of mixing method, its advantage is exactly that sizing material Comparison of Management is convenient, saves bin aging area, and its shortcoming to be exactly mixing cycle longer, sizing material dispersion is uneven, and dump temperature difficulty controls, and is not suitable for mixing formula loading large, the sizing material that compound viscosity is higher.Relative to one section of mixing method, the advantage of two sections of mixing methods is exactly that production efficiency is greatly improved, and can be applicable to the sizing material of mixing various viscosity formulation, and by adopting automatic weighing, operating environment sanitary condition have also been obtained very large improvement.But meanwhile, due to sizing material quick heating, heat radiation is slow, filler difficulties in dispersion under the high temperature conditions, and sizing material dust dispersion quality also receives impact, rubber compounding needs to be divided into two sections or multistage is mixing carries out in addition, the intermediate demand storage period, so make workshop bin aging area and manually all need to increase, sizing material manages also relative difficulty, therefore production efficiency also receive certain limitation, and energy consumption is also larger.
Summarize existing mixer mixing technology, along with the raising of mixer mixing speed, downwind scheme supporting with it also wants corresponding raising the efficiency, so just make the only remaining effect cooling compressing tablet of the Main Function of downwind scheme, and shearing disperses and supplementary mixing effect is just very little, be exactly briefly that dispersion sheared by banbury, downwind scheme cooling compressing tablet.If under the condition of existing mixer mixing speed, by strengthening the melting effect of Mixer Down-stream Eqiupment, by only need one section mixing come rubber compounding, the requirement so below downwind scheme demand fulfillment:
1, the sizing material temperature of 160 ~ 170 DEG C to be reduced to 100 ~ 110 DEG C of temperature, to add sulphur or to add promoter;
2, larger supplementary mixing effect to be had to sizing material, to obtain Mooney viscosity needed for sizing material and dust dispersion quality;
3, the dispersion to sulphur will be completed after adding sulphur;
4, before the scattered rear sizing material of sulphur send sheet extruder, the decentralization of sizing material will reach quality requirement.
Therefore, strengthening downwind scheme is sheared dispersion, supplemented mixing effect is improve banbury production line sizing material quality, saves energy consumption, the important channel cut down finished cost.
Summary of the invention
The object of the invention is to the weak point overcoming existing mixer mixing method, there is provided a kind of strengthen Mixer Down-stream Eqiupment shearing dispersion and mixing effect, make rubber compounding once a kind of compounding process strengthening Mixer Down-stream Eqiupment of completing of property on banbury production line.
Object of the present invention realizes by taking following measure:
A kind of compounding process strengthening Mixer Down-stream Eqiupment, it is characterized in that: select a high speed banbury and associated 1 ~ 3 Mixer Down-stream Eqiupment to form and disposablely complete mixing banbury production line, for strengthening downwind scheme is sheared dispersion, supplemented mixing effect, take following measure:
(1) roller cooling, misting cooling and the collaborative sizing material cooling method of conveyer belt cooling was adopted
Described cross roller cooling refer to by complete the sizing material after mixer mixing be discharged to mill carried out three times cross rollers, the preliminary roller linear velocity scope of its mill is 25 ~ 30m/min, it is 18 ~ 28 DEG C that roller coolant water temperature controls scope, mill roll spacing adjustable range is: first pass crosses roller 5 ~ 8mm, cross roller 3 ~ 6mm second time, cross roller 2 ~ 4mm the 3rd time;
Described misting cooling refers to that adopt and automatically control spray cooling device, its operating pressure is 0.4 ~ 0.6MPa, and cool time is 30 ~ 55s, and film is cooled to 100 ~ 110 DEG C when first pass crosses roller cooling;
After described second time mistake roller, sizing material is cooled to 85 ~ 95 DEG C;
After described 3rd time mistake roller, sizing material is cooled to less than 75 DEG C;
(2) mode adding sulphur masterbatch is taked to add sulphur
Cross the sizing material after roller through first pass to return mill and carried out crossing while roller for second time and add sulphur masterbatch;
(3) supplementary mixing
Return mill through crossing the sizing material after roller for second time to carry out crossing roller for the 3rd time mixing for supplementing, described cross roller 3rd time after, the decentralization of sizing material at least reaches 6 grades, and Mooney viscosity reaches qualified index ± 4 Mooney.
Described downwind scheme selects the mill of boring smooth roll formula roller.
Described conveyer belt cooling, conveyer belt length is no less than 10 meters.
Finally, film is delivered to by conveyer belt and is extruded tablet press machine and carry out compressing tablet, cooling, receipts glue and deposit.
The present invention has following outstanding advantage compared with existing mixer mixing technology:
1, improve production efficiency.For tread rubber, general tread rubber needs three-stage mixing just can complete on existing mixing technology, intermediate demand is through twice compressing tablet cooling and park, 4 hours are no less than by the technological requirement storage period, add mixing, receive glue, put and check equal time, complete the mixing needs time of about 2 days of a sizing material, and strengthen the mixing technology of Mixer Down-stream Eqiupment, only just need can complete the mixing of sizing material less than the time of 10min.
2, improve sizing material quality.For tread rubber, first current mixing technology will through three-stage mixing, wherein have is for twice at high temperature carry out, rubber molecular chain easily produces fracture by mechanism and thermo-oxidative pyrolysis occurs, sizing material molecular weight distribution can be wider, micromolecular quantity can be relatively many, and the mixing sizing material of downwind scheme of the present invention only consumes primary energy in banbury, stand high-temperature time also short, machining is relatively also less, thus its molecular weight distribution relatively will be narrow, and the mechanical property of sizing material will be got well relatively.Secondly, from the decentralization analysis of sizing material, current mixer mixing is unfavorable for the dispersion of sizing material because melting temperature is high, and downwind scheme of the present invention can cool rapidly sizing material, turn roll spacing down, mixing is carry out under lower temperature, less roll spacing, improve the shearing force to sizing material, be conducive to the dispersion of sizing material.Again, take the sulphur method that adds adding sulphur masterbatch to carry out adding sulphur, ensure sulphur dispersion, good mixing, also ensure that sizing material high-quality.
3, save energy, decrease the use of Active workings area and forklift.Still for tread rubber, by adopting the mixing technology of strengthening Mixer Down-stream Eqiupment, glue face glue mixing from three-stage mixing become one section mixing come, middle energy loss greatly reduces, decrease the use of film isolating agent and interleaving agent to the impact of sizing material quality, also cool without the compressing tablet of interlude sizing material and park simultaneously, greatly saving the use of Active workings, decrease the use of forklift.
4, reduce operator's labour intensity, save artificial.For tread rubber, from three-stage mixing become one section mixing, decrease the operation and checkout of interlude, manually so also just greatly to reduce, and the mixing process major part strengthening the mixing technology of Mixer Down-stream Eqiupment can complete under the state automatically controlled, and makes the labour intensity of operator also have certain decline.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1
The compounding process of this strengthening Mixer Down-stream Eqiupment, selecting a high speed banbury to join 1 ~ 3 Mixer Down-stream Eqiupment, selecting according to selecting the difference of banbury model and actual conditions.The present embodiment is selected the mill of GK-270 (20/40r/min) high speed banbury and an associated bench drill hole smooth roll formula roller to be that downwind scheme formation is disposable and is completed mixing banbury production line, and wherein conveyer belt length is 12 meters.
Tread glue formula (quality proportioning): 3# smoke sheet rubber 50, cis-butadiene cement BR900050, zinc oxide 4, stearic acid 2, protection wax 1.5, antioxidant 4020 2.5, peptizer SJ-1030.3, precipitated silica 5, carbon black N22055, aromatic naphtha 14, accelerator NS 1.05, sulphur 1.65
First carry out masterbatch mix with banbury, banbury rotating speed is 40r/min, ram piston pressure 0.65MPa, and calendering process is as follows:
open lower top bolt, binder removal, dump temperature 168 DEG C.
Rubber in above technique comprises smoke sheet rubber and cis-butadiene cement, and small powder comprises zinc oxide, stearic acid, protection wax, age resistor, peptizer and white carbon.
Whole mixing process above, comprises floating weight lifting equal time, amounts to spended time and be about 192s.
For strengthening downwind scheme is sheared dispersion, supplemented mixing effect, the present invention takes following step and process conditions:
Step one: sizing material cools
Adopted that roller cools, misting cooling and the collaborative sizing material cooling method of conveyer belt cooling by complete the sizing material temperature after mixer mixing from 168 DEG C be down to 108 DEG C;
Mill is first carried out first pass and is crossed roller, and the roll spacing of mill is adjusted to 6mm, and preliminary roller linear velocity scope is 30m/min, and the process time is 60s, and roller cooling water temperature control is made as 23 ± 3 DEG C, and sprayer unit operating pressure is 0.5MPa; Sprayer unit carries out misting cooling to film below roller, when sizing material temperature is more than 115 DEG C, misting cooling carries out automatically, when sizing material temperature is down to below 115 DEG C, misting cooling stops automatically, misting cooling time 35s, film returns in mill through conveyer belt, and after cooling, the Temperature displaying of sizing material is 108 DEG C.
Step 2: take the mode adding sulphur masterbatch to add sulphur
Through first pass cross the sizing material after roller return mill carried out second time cross roller, simultaneously by automatic charging device the sulphur masterbatch containing sulphur and promoter join in sizing material carry out mixing, disperse; The roll spacing of now mill is adjusted to 4mm, preliminary roller linear velocity and roller coolant water temperature constant, the process time is 60s; After sizing material crosses roller second time, film returns in mill through conveyer belt, and sizing material temperature drops to 90 DEG C.
Step 3: supplement mixing
Return mill through crossing the sizing material after roller for second time to carry out crossing roller for the 3rd time mixing for supplementing, the roll spacing of mill is adjusted to 3mm, preliminary roller linear velocity and roller coolant water temperature constant, the process time is 90s; Sizing material is mixing, dispersion and cooling further, and cross after roller for the 3rd time, sizing material decentralization and Mooney viscosity all reach qualified index (the results are shown in Table 1), and sizing material is cooled to 70 DEG C.
Finally, film carries out clot by coiling device, and is delivered to by conveyer belt and extrude on tablet press machine, and sizing material carries out compressing tablet, cooling by extruding tablet press machine, film spraying interleaving agent and carry out drying up, receiving glue, and when last film is parked, temperature is 42 DEG C.
Above calendering process process, the mixing time of banbury is about about 3.2min, and the mixing time of the Mixer Down-stream Eqiupment of strengthening is about about 3.5min, can carry out the mixing of lower a sizing material after completing, downwind scheme is worked continuously, and mixing a sizing material banbury idle running is less than time half a minute.
Bin aging is after 4 hours, and sampling detects rheological property, Mooney viscosity and conventional mechanical property, and specific performance the results are shown in Table 1.
Embodiment 2
The compounding process of the strengthening Mixer Down-stream Eqiupment of the present embodiment is selected the mill of XM-370 (6 ~ 60r/min) high speed banbury and associated two bench drill hole smooth roll formula rollers to be that downwind scheme formation is disposable and is completed mixing banbury production line, and wherein conveyer belt length is 15 meters.
Tread glue formula: with embodiment 1
First carry out masterbatch mix with banbury, banbury rotating speed is 60r/min, ram piston pressure 0.7MPa, and calendering process is as follows:
open lower top bolt, binder removal, dump temperature 170 DEG C.
Whole mixing process above, comprises floating weight lifting equal time, amounts to spended time and be about 155s.
After the complete first part of sizing material of mixer mixing, sizing material connects dish enter the mill of First downwind scheme through depositing, and be that strengthening downwind scheme is sheared dispersion, supplemented mixing effect, the present invention takes following step and process conditions:
Step one: sizing material cools
Adopted that roller cools, misting cooling and the collaborative sizing material cooling method of conveyer belt cooling by complete the sizing material temperature after mixer mixing from 170 DEG C be down to 110 DEG C;
Mill is first carried out first pass and is crossed roller, and the roll spacing of mill is adjusted to 6mm, and preliminary roller linear velocity scope is 30m/min, and the process time is 80s, and roller coolant water temperature controls 23 ± 3 DEG C, and sprayer unit operating pressure is 0.5MPa; Sprayer unit carries out misting cooling to film below roller, when sizing material temperature is more than 115 DEG C, misting cooling carries out automatically, when sizing material temperature is down to below 115 DEG C, misting cooling stops automatically, misting cooling time 40s, film returns in mill through conveyer belt, and after cooling, the Temperature displaying of sizing material is 110 DEG C.
Step 2: take the mode adding sulphur masterbatch to add sulphur
Through first pass cross the sizing material after roller return mill carried out second time cross roller, simultaneously by automatic charging device the sulphur masterbatch containing sulphur and promoter join in sizing material carry out mixing, disperse; The roll spacing of now mill is adjusted to 4mm, preliminary roller linear velocity and roller coolant water temperature constant, the process time is 80s; After sizing material crosses roller second time, film returns in mill through conveyer belt, and sizing material temperature drops to 92 DEG C.
Step 3: supplement mixing
Return mill through crossing the sizing material after roller for second time to carry out crossing roller for the 3rd time mixing for supplementing, the roll spacing of mill is adjusted to 3mm, preliminary roller linear velocity and roller coolant water temperature constant, process time 110s; Sizing material is mixing, dispersion and cooling further, and cross after roller for the 3rd time, sizing material decentralization and Mooney viscosity all reach qualified index (the results are shown in Table 1), and sizing material is cooled to 73 DEG C.
Finally, film carries out clot by coiling device, and is delivered to by conveyer belt and extrude on tablet press machine, and sizing material carries out compressing tablet, cooling by extruding tablet press machine, film spraying interleaving agent and carry out drying up, receiving glue, and when last film is parked, temperature is 43 DEG C.
After the complete second part of sizing material of mixer mixing, sizing material connects dish enter second downwind scheme mill through depositing, and takes the mixing step identical with First downwind scheme and process conditions to carry out the mixing of second part of sizing material.
Above calendering process process, the time of mixer mixing two parts of sizing materials is about about 5min, the Mixer Down-stream Eqiupment glue stuff compounding time of strengthening is about about 4.5min, and can enter the mixing of lower a sizing material after banbury completes a rubber compounding, the downwind scheme idle period is about half a minute at once.Certainly, the process time of downwind scheme is also not limited thereto, also by regulating preliminary roller linear velocity and according to quality condition proper extension downwind scheme mixing time, reducing the idle period of downwind scheme.
Bin aging is after 4 hours, and sampling detects proportion, rheological property, Mooney viscosity and conventional mechanical property, and specific performance the results are shown in Table 1.
Comparative example 1
Adopt GK-270 banbury production line, complete the mixing of tread rubber with two of existing mixing technology sections of mixing methods.Concrete calendering process is as follows:
Tread glue formula: with embodiment 1
Banbury one section is mixing: process conditions and calendering process are with the mixer mixing of embodiment 1, and dump temperature records 167 DEG C, and sizing material, through extruding tabletting machine, cooling, film spraying interleaving agent, dries up, receives glue, parks.Sizing material code name is designated as M1, parks sampling after 4 hours and detects proportion.
Banbury two-stage mixing, banbury rotating speed 40r/min, floating weight blast 0.68MPa, calendering process is as follows:
open lower top bolt, binder removal, dump temperature 148 DEG C, sizing material is through extruding tabletting machine, cooling, and film sprays interleaving agent, dries up, receives glue, parks.Sizing material code name is designated as M2, parks sampling after 4 hours and detects Mooney viscosity.
Banbury terminal section is mixing, banbury rotating speed 20r/min, floating weight blast 0.48MPa, and calendering process is as follows:
open lower top bolt, binder removal, dump temperature 105 DEG C, sizing material is first crossed roller through First two roller tablet press and is dispelled the heat for three times, second two roller tablet press is sent to carry out compressing tablet, cooling again, film sprays interleaving agent, dries up, receives glue, sizing material temperature 43 DEG C when parking, mark carried out by sizing material, is labeled as and adds sulphur state.
Bin aging is after 4 hours, and sampling detects proportion, rheological property, Mooney viscosity and conventional mechanical property, and specific performance the results are shown in Table 1.
Comparative example 2
Adopt XM-370 banbury production line, complete the mixing of tread rubber with two of existing mixing technology sections of mixing methods.Concrete calendering process is as follows:
Tread glue formula: with embodiment 1
Banbury one section is mixing: process conditions and calendering process are with the mixer mixing of embodiment 2, and dump temperature records 169 DEG C, and sizing material, through extruding tabletting machine, cooling, film spraying interleaving agent, dries up, receives glue, parks.Sizing material code name is designated as M1, parks sampling after 4 hours and detects proportion.
Banbury two-stage mixing, banbury rotating speed 60r/min, floating weight blast 0.7MPa, calendering process is as follows:
open lower top bolt, binder removal, dump temperature 147 DEG C, sizing material is through extruding tabletting machine, cooling, and film sprays interleaving agent, dries up, receives glue, parks.Sizing material code name is designated as M2, parks sampling after 4 hours and detects Mooney viscosity.
Banbury terminal section is mixing, banbury rotating speed 30r/min, floating weight blast 0.5MPa, and calendering process is as follows:
open lower top bolt, binder removal, dump temperature 105 DEG C, sizing material is first crossed roller through First two roller tablet press and is dispelled the heat for three times, send second two roller tablet press to carry out compressing tablet, cooling again, film sprays interleaving agent, dries up, sizing material temperature 42 DEG C when parking, mark carried out by sizing material, is labeled as and adds sulphur state.
Bin aging is after 4 hours, and sampling detects proportion, rheological property, Mooney viscosity and conventional mechanical property, and specific performance the results are shown in Table 1
Embodiment and comparative example performance comparison result:
Above embodiment and comparative example are all adopt identical tread glue formula, and the performance of embodiment 1,2 is obviously better than comparative example 1,2.As can be seen from Table 1, the Mooney viscosity of embodiment 1,2 is slightly higher than comparative example 1,2, stretching strength, hot strength and tearing strength are all good than comparative example 1,2, Here it is because after adopting the mixing technology of strengthening Mixer Down-stream Eqiupment, the strand of elastomeric compound is subject to hot oxygen and destroys and the situation of mechanical damage is reduced, so intensity is improved; Equally, because elastomeric compound experience high-temperature time reduces, the rheological property of embodiment 1,2 is also good than comparative example 1,2, reduces the incipient scorch tendency of sizing material; Deployment conditions, the CB decentralization of embodiment 1,2 and comparative example 1,2 all reaches more than 6 grades, and relatively, deployment conditions is desirable for decentralization.
Analyze from another point of view, take the mixing technology strengthening Mixer Down-stream Eqiupment, mix quality is not only made to be improved, mixing process is also made once to complete, decrease the mixing of interlude, saved energy with artificial, improve production efficiency, decrease Active workings area, bring income to be huge.
Table 1
Claims (3)
1. strengthen the compounding process of Mixer Down-stream Eqiupment for one kind, it is characterized in that: select a high speed banbury and associated 1 ~ 3 Mixer Down-stream Eqiupment to form and disposablely complete mixing banbury production line, for strengthening downwind scheme is sheared dispersion, supplemented mixing effect, take following measure:
(1) roller cooling, misting cooling and the collaborative sizing material cooling method of conveyer belt cooling was adopted
Described cross roller cooling refer to by complete the sizing material after mixer mixing be discharged to mill carried out three times cross rollers, the preliminary roller linear velocity scope of its mill is 25 ~ 30m/min, it is 18 ~ 28 DEG C that roller coolant water temperature controls scope, mill roll spacing adjustable range is: first pass crosses roller 5 ~ 8mm, cross roller 3 ~ 6mm second time, cross roller 2 ~ 4mm the 3rd time;
Described misting cooling refers to that adopt and automatically control spray cooling device, its operating pressure is 0.4 ~ 0.6MPa, and cool time is 30 ~ 55s, and film returns mill through conveyer belt, and film is cooled to 100 ~ 110 DEG C when first pass crosses roller cooling;
After described second time mistake roller, film returns mill through conveyer belt, and sizing material is cooled to 85 ~ 95 DEG C;
After described 3rd time mistake roller, sizing material is cooled to less than 75 DEG C;
(2) mode adding sulphur masterbatch is taked to add sulphur
Cross the sizing material after roller through first pass to return mill and carried out crossing while roller for second time and add sulphur masterbatch;
(3) supplementary mixing
Return mill through crossing the sizing material after roller for second time to carry out crossing roller for the 3rd time mixing for supplementing, described cross roller 3rd time after, the decentralization of sizing material at least reaches 6 grades, and Mooney viscosity reaches qualified index ± 4 Mooney.
2. a kind of compounding process strengthening Mixer Down-stream Eqiupment according to claim 1, is characterized in that: described downwind scheme selects the mill of boring smooth roll formula roller.
3. a kind of compounding process strengthening Mixer Down-stream Eqiupment according to claim 1, is characterized in that: described conveyer belt cooling, conveyer belt length is no less than 10 meters.
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| CN105750142B (en) * | 2016-04-20 | 2018-06-26 | 江苏通用科技股份有限公司 | A kind of spraying process of interleaving agent |
| CN108858849A (en) * | 2018-08-01 | 2018-11-23 | 浦林成山（山东）轮胎有限公司 | A kind of mixing refining gluing method and equipment |
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| JP2003062830A (en) * | 2001-08-28 | 2003-03-05 | Matsushita Electric Works Ltd | Method and apparatus for cooling kneaded resin mixture |
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| JP2003062830A (en) * | 2001-08-28 | 2003-03-05 | Matsushita Electric Works Ltd | Method and apparatus for cooling kneaded resin mixture |
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| 再生胶对农业轮胎胎面胶性能的影响;王廷山，李永新，张万清，张立;《轮胎工业》;20081231;第162-164页 * |
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