CN114276578A - EPDM (ethylene-propylene-diene monomer) microporous foamed rubber particle and preparation method thereof - Google Patents
EPDM (ethylene-propylene-diene monomer) microporous foamed rubber particle and preparation method thereof Download PDFInfo
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- CN114276578A CN114276578A CN202210033655.3A CN202210033655A CN114276578A CN 114276578 A CN114276578 A CN 114276578A CN 202210033655 A CN202210033655 A CN 202210033655A CN 114276578 A CN114276578 A CN 114276578A
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 190
- 239000002245 particle Substances 0.000 title claims abstract description 38
- 229920002943 EPDM rubber Polymers 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 48
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000806 elastomer Substances 0.000 claims abstract description 10
- 239000005662 Paraffin oil Substances 0.000 claims abstract description 9
- 239000004033 plastic Substances 0.000 claims abstract description 9
- 229920003023 plastic Polymers 0.000 claims abstract description 9
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 9
- 239000011787 zinc oxide Substances 0.000 claims abstract description 9
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 8
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 8
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 238000005187 foaming Methods 0.000 claims abstract description 6
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 55
- 239000004636 vulcanized rubber Substances 0.000 claims description 50
- 238000000034 method Methods 0.000 claims description 29
- 238000005507 spraying Methods 0.000 claims description 20
- 238000001125 extrusion Methods 0.000 claims description 19
- 239000007921 spray Substances 0.000 claims description 17
- 239000004744 fabric Substances 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 12
- 238000009423 ventilation Methods 0.000 claims description 9
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 4
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 239000008187 granular material Substances 0.000 abstract description 5
- 238000004026 adhesive bonding Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000011324 bead Substances 0.000 description 35
- 239000007788 liquid Substances 0.000 description 34
- 239000007789 gas Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- 230000007717 exclusion Effects 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 229920000426 Microplastic Polymers 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229920006235 chlorinated polyethylene elastomer Polymers 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 description 1
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Abstract
The invention belongs to the field of rubber particle manufacturing, and particularly relates to EPDM (ethylene-propylene-diene monomer) microcellular foamed rubber particles and a preparation method thereof, wherein the EPDM microcellular foamed rubber particles comprise the following raw materials in parts by weight: 100 parts of rubber-plastic elastomer, 80-110 parts of paraffin oil, 3-6 parts of zinc oxide, 4-8 parts of sodium bicarbonate, 0-150 parts of kaolin and 6-15 parts of titanium dioxide; through increasing the cooling step in the preparation process at hole foaming rubber granule, can make rubber through vulcanizing the back to lower temperature is sliced, makes rubber change and is cut open, and when refrigerated rubber was cut simultaneously, difficult emergence is out of shape by a wide margin, makes rubber section more convenient, and rubber is difficult for gluing the sword.
Description
Technical Field
The invention belongs to the field of rubber particle manufacturing, and particularly relates to EPDM (ethylene-propylene-diene monomer) microcellular foamed rubber particles and a preparation method thereof.
Background
The rubber particles are granular objects made of rubber, and have the characteristics of ageing resistance, long service life and easiness in maintenance.
A Chinese patent with publication No. CN107880370B discloses a process for preparing plastic granules, which comprises mixing regenerated EVA granules subjected to microwave desulfurization with chlorinated polyethylene rubber or SEBS to obtain elastomer, and adding stabilizer, filler, plasticizer, anti-aging agent and pigment.
Therefore, the invention provides EPDM microporous foamed rubber particles and a preparation method thereof, wherein in the preparation process of the microporous foamed rubber particles, rubber needs to be melted and vulcanized, then the rubber is sliced, and finally the sliced rubber is introduced into a granulator to be processed into particles.
Disclosure of Invention
To remedy the deficiencies of the prior art, at least one of the technical problems set forth in the background is addressed.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to EPDM microporous foamed rubber particles, which comprise the following raw materials in parts by weight: 100 parts of rubber-plastic elastomer, 80-110 parts of paraffin oil, 3-6 parts of zinc oxide, 4-8 parts of sodium bicarbonate, 0-150 parts of kaolin and 6-15 parts of titanium dioxide.
A preparation method of EPDM microcellular foamed rubber particles is suitable for the EPDM microcellular foamed rubber particles, and comprises the following steps:
s1: adding the rubber-plastic elastomer, kaolin and titanium dioxide into an internal mixer for internal mixing for 15-20min, adding paraffin oil for internal mixing for 4-8min after internal mixing is finished, then continuously adding sodium bicarbonate and zinc oxide for internal mixing for 2-3min, and discharging to obtain a mixed material a;
s2: extruding the mixed material a at 75-85 ℃, and vulcanizing the extruded rubber at 185-195 ℃ for 18-28min to obtain vulcanized rubber;
s3: then standing the vulcanized rubber, enabling the vulcanized rubber to pass through a cooling pipeline of cooling equipment when the temperature of the vulcanized rubber is reduced to 60 ℃, and directly slicing the vulcanized rubber when the cooled vulcanized rubber extends out of the port of the cooling pipeline to obtain sheet rubber; and finally, granulating the flaky rubber to obtain the foamed rubber particles.
Preferably, the cooling device comprises a cooling pipeline; an inner-layer sleeve is fixedly connected inside the cooling pipeline; the bottom of the inner casing is provided with a cavity; the bottom of the cooling pipeline is connected with an air inlet pipe; the top end of the air inlet pipe penetrates through the cooling pipeline and extends into the cavity; an air permeable plate with holes is arranged at an opening between the cavity and the side wall of the inner casing; a first elastic sealing cloth is connected between the perforated ventilation plate and the opening of the inner layer sleeve; a group of guide rings are arranged at two ends of the inner side wall of the inner sleeve; the guide ring is connected with the inner side wall of the inner layer sleeve through second sealing elastic cloth; the inner side wall of the guide ring is fixedly connected with annular sealing elastic cloth; when vulcanized rubber need pass through the cooling pipe, penetrate the tip of vulcanized rubber from the sealed elastic cloth of annular earlier, then open the switch of air-supply line, make the air-supply line inside have gaseous discharge, the air-supply line combustion gas can upwards blow through the hole on the foraminiferous ventilative board this moment, take away the inside heat of inlayer cover pipe, then gaseous can follow air-out pipe and discharge, through increase the cooling step in the preparation process at hole foaming rubber granule, can make rubber through the vulcanization back, be sliced with lower temperature, make rubber change by the incision, when refrigerated rubber is cut simultaneously, difficult emergence is by a wide margin deformed, it is more convenient to make rubber section, rubber is difficult for gluing the sword.
Preferably, the top end of the air inlet pipe is rotatably connected with a wind wheel; a cam is rotatably connected inside the cavity; the cam is connected with the wind wheel through a belt; the cam is contacted with the perforated ventilation plate; through being equipped with the cam bottom the ventilative board in the area hole, can be at the in-process that the air-supply line was given vent to anger, the air current can drive the wind wheel and rotate, then under the connection of belt, the cam also can rotate simultaneously, then foraminiferous ventilative board can be in the continuous strike of cam and produce the vibration down, then the vortex will appear because of the shake of foraminiferous ventilative board in the inside hot gas flow of inlayer cover, near the inside vulcanized rubber of inlayer cover near air will flow with higher speed this moment, make the gas that flows through from the inlayer cover can take away more hot-air, make vulcanized rubber's cooling rate accelerate, make subsequent rubber section more smooth.
Preferably, a plurality of groups of elastic springboards are fixedly connected to the top of the perforated air-permeable plate; the position of the elastic springboard corresponds to the through hole on the perforated ventilated plate; through being equipped with the elasticity springboard at foraminiferous aerofoil top, can be at vulcanized rubber through the sheathed tube in-process of inlayer, the vulcanized rubber is lived to the elasticity springboard support, make rubber can not directly press on the through-hole of foraminiferous aerofoil, make air-supply line spun gas can normally follow the inside process of inlayer bushing, make the cooling process of inlayer bushing to rubber more stable, simultaneously the shake accessible elasticity springboard conduction of foraminiferous aerofoil makes rubber also shake in inlayer bushing on to rubber, and then increase the contact volume of rubber and the inside air current of inlayer bushing, this setting can make vulcanized rubber behind the inlayer bushing, its temperature can be reduced more.
Preferably, the top of the cooling pipeline is provided with a water guide pipe; the bottom of the water guide pipe is communicated with a plurality of groups of water spray pipes; the bottom end of the water spraying pipe extends into the inner layer sleeve; through the spray pipe that is equipped with the water spray at inlayer cover intraduct for vulcanized rubber has liquid to be stained with on rubber and attaches when the inlayer sleeve pipe, then under the flow of the inside air of inlayer sleeve pipe, makes liquid evaporate on rubber and takes away the heat, and this setting can make vulcanized rubber temperature can reduce more when the inlayer sleeve pipe.
Preferably, the bottom end of the water spray pipe is communicated with a rubber three-way water spray head; through being equipped with rubber tee bend sprinkler bead bottom the sprinkler bead, can be when the sprinkler bead is flowed through to liquid, can be shunted in rubber tee bend sprinkler bead department, then on assaulting the vulcanite, this setting can make the liquid that enters into the inlayer sheathed tube can cover bigger area on the rubber for when rubber process inlayer sleeve pipe, by the more even of cooling.
Preferably, the rubber three-way water spray head is sleeved with an extrusion ring; the inner diameter of the extrusion ring is larger than the top pipe diameter of the rubber three-way sprinkler bead and smaller than the bottom pipe diameter of the rubber three-way sprinkler bead; through the cover have the extrusion ring on rubber tee bend sprinkler bead, can take the in-process of hole ventilative board vibration, first elasticity stay cord can stimulate the extrusion ring and rock on rubber tee bend sprinkler bead, will make the liquid journey that rubber tee bend sprinkler bead flows out at this moment and spray the form, impact on rubber for liquid can more even distribution on rubber, makes the cooling of rubber more even.
Preferably, two output ends at the bottom of the rubber three-way water spraying head are respectively provided with a water distributing ball; the water diversion ball is connected with the rubber three-way water spraying head through a second elastic pull rope; through being equipped with the ball that divides water in the bottom of rubber tee bend sprinkler bead, can impact earlier when liquid dashes out from rubber tee bend sprinkler bead bottom, then under the stopping of ball that divides water, disperse and come, this setting can make from the liquid distribution area of rubber tee bend sprinkler bead department spun wider, increases the utilization ratio of liquid.
Preferably, two pipe bodies at the bottom of the rubber three-way water spraying head are respectively provided with a magnet; the two magnets are mutually exclusive; through being equipped with the magnet mutual exclusion in the bottom of rubber tee bend sprinkler bead, can make the extrusion ring when the downstream on rubber tee bend sprinkler bead, because of the mutual exclusion effect of two magnets, magnet can extrude the bottom water jet of rubber tee bend sprinkler bead for the outflow speed of liquid is accelerated, and simultaneously when the extrusion ring was upwards removed, two landing legs in the bottom of rubber tee bend sprinkler bead can be faster separately.
The invention has the following beneficial effects:
1. according to the EPDM microporous foamed rubber particle and the preparation method thereof, the cooling step is added in the preparation process of the microporous foamed rubber particle, so that rubber can be sliced at a lower temperature after vulcanization, the rubber is easier to cut, and meanwhile, the cooled rubber is not easy to deform greatly when being cut, so that the rubber slicing is more convenient and the rubber is not easy to stick to a knife.
2. According to the EPDM microporous foamed rubber particle and the preparation method thereof, the rubber three-way water spraying head is arranged at the bottom of the water spraying pipe, so that liquid can be shunted at the rubber three-way water spraying head when flowing through the water spraying pipe and then impact on vulcanized rubber, and the arrangement can enable the liquid entering the inner-layer sleeve to cover a larger area on the rubber, so that the rubber is cooled more uniformly when passing through the inner-layer sleeve.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 is a perspective view of the present invention;
FIG. 3 is a cross-sectional view of a cooling conduit according to the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a schematic view of the sprinkler head;
in the figure: 1. a cooling pipeline; 11. an inner casing; 12. a cavity; 13. an air inlet pipe; 14. an air outlet pipe; 15. a perforated louver; 16. a first elastic sealing cloth; 17. a guide ring; 18. a second sealing elastic cloth; 19. annular sealing elastic cloth; 2. a wind wheel; 21. a cam; 3. an elastic springboard; 4. a water conduit; 41. a water spray pipe; 5. a rubber three-way sprinkler head; 6. an extrusion ring; 61. a first elastic pull rope; 7. a water diversion ball; 71. a second elastic pull rope; 8. and a magnet.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example one
EPDM microporous foamed rubber particles are prepared from the following raw materials in parts by weight: 100 parts of rubber-plastic elastomer, 80 parts of paraffin oil, 3 parts of zinc oxide, 4 parts of sodium bicarbonate and 6 parts of titanium dioxide.
Example two
EPDM microporous foamed rubber particles are prepared from the following raw materials in parts by weight: 100 parts of rubber-plastic elastomer, 95 parts of paraffin oil, 4 parts of zinc oxide, 6 parts of sodium bicarbonate, 75 parts of kaolin and 10 parts of titanium dioxide.
EXAMPLE III
EPDM microporous foamed rubber particles are prepared from the following raw materials in parts by weight: 100 parts of rubber-plastic elastomer, 110 parts of paraffin oil, 6 parts of zinc oxide, 8 parts of sodium bicarbonate, 150 parts of kaolin and 15 parts of titanium dioxide.
By preparing microcellular foamed rubber particles from the raw materials in the above three examples, it was found that the microcellular foamed rubber particles prepared in example two were in the best condition.
As shown in fig. 1 to 5, a method for preparing EPDM microcellular foamed rubber particles, which is applicable to the above-mentioned EPDM microcellular foamed rubber particles, comprises:
s1: adding the rubber-plastic elastomer, kaolin and titanium dioxide into an internal mixer for internal mixing for 15-20min, adding paraffin oil for internal mixing for 4-8min after internal mixing is finished, then continuously adding sodium bicarbonate and zinc oxide for internal mixing for 2-3min, and discharging to obtain a mixed material a;
s2: extruding the mixed material a at 75-85 ℃, and vulcanizing the extruded rubber at 185-195 ℃ for 18-28min to obtain vulcanized rubber;
s3: then standing the vulcanized rubber, enabling the vulcanized rubber to pass through a cooling pipeline 1 of cooling equipment when the temperature of the vulcanized rubber is reduced to 60 ℃, enabling the temperature of the vulcanized rubber to be reduced, and directly slicing the vulcanized rubber when the cooled vulcanized rubber extends out of the port of the cooling pipeline 1 to obtain sheet rubber; and finally, granulating the flaky rubber to obtain the foamed rubber particles.
The cooling device comprises a cooling pipeline 1; an inner sleeve 11 is fixedly connected inside the cooling pipeline 1; the bottom of the inner casing 11 is provided with a cavity 12; the bottom of the cooling pipeline 1 is connected with an air inlet pipe 13; the top end of the air inlet pipe 13 penetrates through the cooling pipeline 1 and extends into the cavity 12; an opening between the cavity 12 and the side wall of the inner casing 11 is provided with a perforated ventilating plate 15; a first elastic sealing cloth 16 is connected between the perforated ventilation plate 15 and the opening of the inner layer sleeve 11; a group of guide rings 17 are arranged at two ends of the inner side wall of the inner sleeve 11; the guide ring 17 is connected with the inner side wall of the inner-layer sleeve 11 through a second sealing elastic cloth 18; the inner side wall of the guide ring 17 is fixedly connected with an annular sealing elastic cloth 19; when vulcanized rubber need pass through cooling tube 1, penetrate earlier vulcanized rubber's tip from annular seal elastic cloth 19, then open the switch of air-supply line 13, make air-supply line 13 inside have gaseous discharge, air-supply line 13 combustion gas can upwards blow through the hole on foraminiferous ventilative board 15 this moment, take away the inside heat of inlayer sleeve pipe 11, then gaseous can discharge from tuber pipe 14, through increase the cooling step in the preparation process at hole foaming rubber granule, can make rubber through vulcanize the back, be sliced with lower temperature, make rubber more easily cut, when refrigerated rubber is cut simultaneously, be difficult for taking place by a wide margin deformation, it is more convenient to make rubber section, rubber is difficult for gluing the sword.
The top end of the air inlet pipe 13 is rotatably connected with a wind wheel 2; a cam 21 is rotatably connected inside the cavity 12; the cam 21 is connected with the wind wheel 2 through a belt; the cam 21 is contacted with the perforated ventilation plate 15; through being equipped with cam 21 bottom the ventilative board 15 in the band hole, can be at the in-process that air-supply line 13 was given vent to anger, the air current can drive wind wheel 2 and rotate, then under the connection of belt, cam 21 also can rotate simultaneously, then foraminiferous ventilative board 15 can produce the vibration under the lasting strike of cam 21, then the vortex will appear because of the shake of foraminiferous ventilative board 15 in the inside hot gas flow of inlayer sleeve pipe 11, near the inside vulcanized rubber of inlayer sleeve pipe 11 air will flow with higher speed this moment, make and take away more hot-air from the inside gas that flows through of inlayer sleeve pipe 11, make vulcanized rubber's cooling rate accelerate, make subsequent rubber section more smooth.
The top of the perforated ventilation plate 15 is fixedly connected with a plurality of groups of elastic springboards 3; the position of the elastic springboard 3 corresponds to the through hole on the perforated ventilative board 15; through being equipped with elasticity springboard 3 at foraminiferous ventilative board 15 top, can be at vulcanized rubber through inlayer sleeve pipe 11's in-process, elasticity springboard 3 supports vulcanized rubber, make rubber can not directly press on foraminiferous ventilative board 15's through-hole, make air-supply line 13 spun gas can normally follow the inside process of inlayer sleeve pipe 11, make inlayer sleeve pipe 11 more stable to the cooling process of rubber, simultaneously foraminiferous ventilative board 15's shake accessible elasticity springboard 3 conduct make rubber also at the inside shake of inlayer sleeve pipe 11 on rubber, and then increase the contact volume of rubber and the inside air current of inlayer sleeve pipe 11, this setting can make vulcanized rubber pass through inlayer sleeve pipe 11 after, its temperature can be reduced more.
The top of the cooling pipeline 1 is provided with a water guide pipe 4; the bottom of the water guide pipe 4 is communicated with a plurality of groups of water spray pipes 41; the bottom end of the water spraying pipe 41 extends to the inside of the inner casing 11; through the spray pipe 41 that is equipped with the water spray inside the inlayer sleeve pipe 11 for vulcanized rubber has liquid to be stained with on rubber when passing through inlayer sleeve pipe 11, then under the flow of the inside air of inlayer sleeve pipe 11, makes liquid evaporate on rubber and takes away the heat, and this setting can make vulcanized rubber pass through inlayer sleeve pipe 11 the time temperature can reduce more.
The bottom end of the water spraying pipe 41 is communicated with a rubber three-way water spraying head 5; through being equipped with rubber tee bend sprinkler bead 5 in sprinkler pipe 41 bottom, can be when liquid flows through sprinkler pipe 41, can be shunted in rubber tee bend sprinkler bead 5 department, then impact on the vulcanite, this setting can make the liquid that enters into inlayer sleeve pipe 11 can cover bigger area on the rubber for when rubber process inlayer sleeve pipe 11, by the more even of cooling.
The rubber three-way water spraying head 5 is sleeved with an extrusion ring 6; the inner diameter of the extrusion ring 6 is larger than the top pipe diameter of the rubber three-way sprinkler head 5 and smaller than the bottom pipe diameter of the rubber three-way sprinkler head 5; through the cover has extrusion ring 6 on rubber tee bend sprinkler bead 5, can take the in-process of the vibration of hole ventilative board 15, first elasticity stay cord 61 can stimulate extrusion ring 6 and rock on rubber tee bend sprinkler bead 5, will make the liquid journey that rubber tee bend sprinkler bead 5 flows out at this moment spray the form, impact on rubber for liquid can more even distribution on rubber, make the cooling of rubber more even.
Two water distributing balls 7 are respectively arranged at the two bottom output ends of the rubber three-way water spraying head 5; the water diversion ball 7 is connected with the rubber three-way sprinkler head 5 through a second elastic pull rope 71; through being equipped with the ball 7 that divides water at the bottom of rubber tee bend sprinkler bead 5, can impact earlier on dividing the ball 7 when liquid dashes out from rubber tee bend sprinkler bead 5 bottom, then under the blockking of dividing the ball 7, disperse, this setting can make from the liquid distribution area of rubber tee bend sprinkler bead 5 spun wider, increases the utilization ratio of liquid.
Two pipe bodies at the bottom of the rubber three-way water spraying head 5 are respectively provided with a magnet 8; the two magnets 8 are mutually exclusive; through being equipped with 8 mutexes of magnet in the bottom of rubber tee bend sprinkler bead 5, can make extrusion ring 6 when the downstream on rubber tee bend sprinkler bead 5, because of two 8 mutexes of magnet effect, magnet 8 can extrude the bottom water jet of rubber tee bend sprinkler bead 5 for the outflow speed of liquid accelerates, when extrusion ring 6 upwards removes, two landing legs in the bottom of rubber tee bend sprinkler bead 5 can be faster separately simultaneously.
The during operation, when vulcanized rubber need be through cooling tube 1, penetrate vulcanized rubber's tip from annular seal elastic cloth 19 earlier, then open the switch of air-supply line 13, make air-supply line 13 inside have gaseous exhaust, air-supply line 13 combustion gas can upwards blow through the hole on foraminiferous ventilative board 15 this moment, take away the inside heat of inlayer sleeve pipe 11, then gaseous can discharge from air-out pipe 14, increase the cooling step through the preparation in-process at hole foaming rubber granule, can make rubber process vulcanization back, by the section with lower temperature, make rubber more easily cut, while refrigerated rubber is when being cut, difficult emergence is by a wide margin deformed, make rubber section more convenient, rubber is difficult for gluing the sword.
Through being equipped with cam 21 bottom the ventilative board 15 in the band hole, can be at the in-process that air-supply line 13 was given vent to anger, the air current can drive wind wheel 2 and rotate, then under the connection of belt, cam 21 also can rotate simultaneously, then foraminiferous ventilative board 15 can produce the vibration under the lasting strike of cam 21, then the vortex will appear because of the shake of foraminiferous ventilative board 15 in the inside hot gas flow of inlayer sleeve pipe 11, near the inside vulcanized rubber of inlayer sleeve pipe 11 air will flow with higher speed this moment, make and take away more hot-air from the inside gas that flows through of inlayer sleeve pipe 11, make vulcanized rubber's cooling rate accelerate, make subsequent rubber section more smooth.
Through being equipped with elasticity springboard 3 at foraminiferous ventilative board 15 top, can be at vulcanized rubber through inlayer sleeve pipe 11's in-process, elasticity springboard 3 supports vulcanized rubber, make rubber can not directly press on foraminiferous ventilative board 15's through-hole, make air-supply line 13 spun gas can normally follow the inside process of inlayer sleeve pipe 11, make inlayer sleeve pipe 11 more stable to the cooling process of rubber, simultaneously foraminiferous ventilative board 15's shake accessible elasticity springboard 3 conduct make rubber also at the inside shake of inlayer sleeve pipe 11 on rubber, and then increase the contact volume of rubber and the inside air current of inlayer sleeve pipe 11, this setting can make vulcanized rubber pass through inlayer sleeve pipe 11 after, its temperature can be reduced more.
The water spray pipe 41 for spraying water is arranged in the inner layer sleeve 11, so that liquid can be attached to the rubber when the vulcanized rubber passes through the inner layer sleeve 11, and then the liquid evaporates on the rubber under the flowing of air in the inner layer sleeve 11 to bring away heat, and the arrangement can reduce the temperature of the vulcanized rubber more when the vulcanized rubber passes through the inner layer sleeve 11; by arranging the rubber three-way sprinkler head 5 at the bottom of the sprinkler pipe 41, when liquid flows through the sprinkler pipe 41, the liquid can be shunted at the rubber three-way sprinkler head 5 and then impact on vulcanized rubber, and the arrangement can ensure that the liquid entering the inner-layer sleeve 11 can cover a larger area on the rubber, so that the rubber is cooled more uniformly when passing through the inner-layer sleeve 11; through the cover has extrusion ring 6 on rubber tee bend sprinkler bead 5, can take the in-process of the vibration of hole ventilative board 15, first elasticity stay cord 61 can stimulate extrusion ring 6 and rock on rubber tee bend sprinkler bead 5, will make the liquid journey that rubber tee bend sprinkler bead 5 flows out at this moment spray the form, impact on rubber for liquid can more even distribution on rubber, make the cooling of rubber more even.
The water diversion ball 7 is arranged at the bottom end of the rubber three-way sprinkler head 5, so that when liquid rushes out from the bottom of the rubber three-way sprinkler head 5, the liquid can firstly impact the water diversion ball 7 and then is dispersed under the blocking of the water diversion ball 7, the arrangement can enable the distribution area of the liquid sprayed out from the rubber three-way sprinkler head 5 to be wider, and the utilization rate of the liquid is increased; through being equipped with 8 mutexes of magnet in the bottom of rubber tee bend sprinkler bead 5, can make extrusion ring 6 when the downstream on rubber tee bend sprinkler bead 5, because of two 8 mutexes of magnet effect, magnet 8 can extrude the bottom water jet of rubber tee bend sprinkler bead 5 for the outflow speed of liquid accelerates, when extrusion ring 6 upwards removes, two landing legs in the bottom of rubber tee bend sprinkler bead 5 can be faster separately simultaneously.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An EPDM micropore foaming rubber particle is characterized in that: the feed is prepared from the following raw materials in parts by weight: 100 parts of rubber-plastic elastomer, 80-110 parts of paraffin oil, 3-6 parts of zinc oxide, 4-8 parts of sodium bicarbonate, 0-150 parts of kaolin and 6-15 parts of titanium dioxide.
2. A preparation method of EPDM microcellular foaming rubber particles is characterized by comprising the following steps: the preparation method is suitable for the EPDM microporous foamed rubber particle in claim 1, and comprises the following steps:
s1: adding the rubber-plastic elastomer, kaolin and titanium dioxide into an internal mixer for internal mixing for 15-20min, adding paraffin oil for internal mixing for 4-8min after internal mixing is finished, then continuously adding sodium bicarbonate and zinc oxide for internal mixing for 2-3min, and discharging to obtain a mixed material a;
s2: extruding the mixed material a at 75-85 ℃, and vulcanizing the extruded rubber at 185-195 ℃ for 18-28min to obtain vulcanized rubber;
s3: then standing the vulcanized rubber, enabling the vulcanized rubber to pass through a cooling pipeline (1) of cooling equipment when the temperature of the vulcanized rubber is reduced to 60 ℃, enabling the temperature of the vulcanized rubber to be reduced, and directly slicing the vulcanized rubber when the cooled vulcanized rubber extends out of the port of the cooling pipeline (1) to obtain sheet rubber; and finally, granulating the flaky rubber to obtain the foamed rubber particles.
3. The method for preparing EPDM microporous foamed rubber particles as claimed in claim 2, wherein: the cooling device comprises a cooling pipeline (1); an inner sleeve (11) is fixedly connected inside the cooling pipeline (1); the bottom of the inner layer sleeve (11) is provided with a cavity (12); the bottom of the cooling pipeline (1) is connected with an air inlet pipe (13); the top end of the air inlet pipe (13) penetrates through the cooling pipeline (1) and extends into the cavity (12); an opening between the cavity (12) and the side wall of the inner sleeve (11) is provided with a perforated ventilation plate (15); a first elastic sealing cloth (16) is connected between the perforated ventilation plate (15) and the opening of the inner layer sleeve (11); a group of guide rings (17) are arranged at two ends of the inner side wall of the inner sleeve (11); the guide ring (17) is connected with the inner side wall of the inner layer sleeve (11) through a second sealing elastic cloth (18); the inner side wall of the guide ring (17) is fixedly connected with annular sealing elastic cloth (19).
4. The method for preparing EPDM microporous foamed rubber particles as recited in claim 3, wherein: the top end of the air inlet pipe (13) is rotatably connected with a wind wheel (2); a cam (21) is rotatably connected inside the cavity (12); the cam (21) is connected with the wind wheel (2) through a belt; the cam (21) is in contact with the perforated ventilation plate (15).
5. The method for preparing EPDM microporous foamed rubber particles as recited in claim 4, wherein: the top of the perforated ventilation plate (15) is fixedly connected with a plurality of groups of elastic springboards (3); the position of the elastic springboard (3) corresponds to the through hole on the perforated ventilative board (15).
6. The method for preparing EPDM microporous foamed rubber particles as recited in claim 5, wherein: the top of the cooling pipeline (1) is provided with a water guide pipe (4); the bottom of the water guide pipe (4) is communicated with a plurality of groups of water spray pipes (41); the bottom end of the water spraying pipe (41) extends to the inside of the inner casing pipe (11).
7. The method for preparing EPDM microporous foamed rubber particles as recited in claim 6, wherein: the bottom end of the water spraying pipe (41) is communicated with a rubber three-way water spraying head (5).
8. The method for preparing EPDM microporous foamed rubber particles as recited in claim 7, wherein: the rubber three-way water spray head (5) is sleeved with an extrusion ring (6); the inner diameter of the extrusion ring (6) is larger than the top pipe diameter of the rubber three-way sprinkler head (5) and smaller than the bottom pipe diameter of the rubber three-way sprinkler head (5).
9. The method for preparing EPDM microporous foamed rubber particles as recited in claim 8, wherein: two output ends at the bottom of the rubber three-way water spray head (5) are respectively provided with a water distribution ball (7); the water diversion ball (7) is connected with the rubber three-way water spraying head (5) through a second elastic pull rope (71).
10. The method for preparing EPDM microporous foamed rubber particles as recited in claim 9, wherein: two pipe bodies at the bottom of the rubber three-way water spraying head (5) are respectively provided with a magnet (8); the two magnets (8) are mutually exclusive.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08103948A (en) * | 1994-10-05 | 1996-04-23 | Frontier:Kk | Preform cooler |
| CN108178880A (en) * | 2017-12-28 | 2018-06-19 | 郑凌云 | A kind of EPDM microporous foams rubber grain and preparation method thereof |
| CN207765211U (en) * | 2017-12-26 | 2018-08-24 | 洛阳大元电缆有限公司 | A kind of air cooled box to cool for cable |
| CN111990481A (en) * | 2020-08-17 | 2020-11-27 | 胡伟峰 | Roasted green cooling system for tea production and preparation and cooling method thereof |
-
2022
- 2022-01-12 CN CN202210033655.3A patent/CN114276578B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08103948A (en) * | 1994-10-05 | 1996-04-23 | Frontier:Kk | Preform cooler |
| CN207765211U (en) * | 2017-12-26 | 2018-08-24 | 洛阳大元电缆有限公司 | A kind of air cooled box to cool for cable |
| CN108178880A (en) * | 2017-12-28 | 2018-06-19 | 郑凌云 | A kind of EPDM microporous foams rubber grain and preparation method thereof |
| CN111990481A (en) * | 2020-08-17 | 2020-11-27 | 胡伟峰 | Roasted green cooling system for tea production and preparation and cooling method thereof |
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| CN114276578B (en) | 2023-07-04 |
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