CN205099607U - Low volatility rubber continuous production structure - Google Patents

Abstract

The utility model provides a low volatility rubber continuous production structure, includes the dehydration cauldron, mixes machine, polymerization ware, takes off low molecule ware and ejection of compact machine, the dehydration cauldron the bottom with it connects to mix the bottom of machine, mix the machine with the polymerization ware is connected, the polymerization ware with it connects to take off the top of low molecule ware, the bottom of taking off low molecule ware with ejection of compact machine is connected, take off low molecule ware including taking off low cauldron and vacuum pump, it is provided with a plurality of evacuation holes to take off low cauldron, it passes through to take off low cauldron the evacuation hole with vacuum pump connection, take off low cauldron with ejection of compact machine is connected. Above -mentioned low volatility rubber continuous production structure can improve the production efficiency of rubber, promotes product quality, and reduction in production cost reduces environmental pollution.

Description

Low volatility rubber continuous seepage structure

Technical field

The utility model relates to the production field of rubber raw rubber, particularly relates to a kind of low volatility rubber continuous seepage structure.

Background technology

Methyl vinyl silicone rubber is the basic polysiloxane of uncured (being cross-linked), and be called for short rubber, it is the linear polydimethyl organo-siloxane of a class high molecular weight.

Methyl vinyl silicone rubber is a kind of functional high molecule material, due to the chemical structure of its linear polysiloxanes, namely chain is made up of Si-O-Si key, there is excellent thermo-oxidative stability, weathering resistance, highly air-permeable, electrical insulating property, nontoxic, the performance that the other materials such as physiological inertia are incomparable, therefore, be widely used in aerospace, electric apparatus, electronics, petrochemical industry, weaving, automobile, medicine, food-processing and everyday articles manufacture field, be described as " industrial monosodium glutamate ", the effect become more and more important is played to high-tech and the upgrading and optimization of industrial structure, develop one of indispensable type material 21 century.Rubber both can be used as base mateiral, can be added into other material and improve its performance by functional material again, no matter was bulk product or marketable special product, all belonged to the fine chemical product of height capital intensive, high added value.

In the preparation process of silicon rubber, with dimethyl ring body siloxanes for main raw material, and add methyl ethylene four ring body accounting for dimethyl ring body siloxanes thousandth to thousand/tetra-, dimethyl ring body siloxanes is under the effect of catalyzer, there is open chain polyreaction and generate polymer line style dimethyl polysiloxane, also there is open chain polyreaction simultaneously and generate polymer line style methylvinyl-polysiloxane in methyl ethylene four ring body, thus obtains methyl vinyl silicon kautschuk.

Such as, Chinese patent 201110021460.9 discloses a kind of production technique of synthesizing methyl vinylsiloxane rubber, have employed tube polymerization device and is configured with twice flash evaporation technology; Adopt dimethicone or octamethylcyclotetrasiloxane to make raw material, its concrete steps comprise: metering-dehydration-add auxiliary agent-polymerization-broken matchmaker's single flash-secondary flash.The utility model production technique, turndown ratio is large, and process controllability is strong; There is the area of the device of good mass transter and sufficient heat exchange, improve molecular weight distribution; By UNICOM's pipeline of the import and export of tube polymerization device, the flow direction of material can be changed like a cork, get rid of in time and cleaning tubular type polymerizer; Can the response situation of on-line analysis at any time in tube polymerization device, be convenient to intermediate controlled, timely adjusting process composition and engineering condition; Add a set of flash distillation plant, be conducive to the burden alleviating vacuum system, be more beneficial to the stable of quality product.

And for example, Chinese patent 201510049141.7 discloses a kind of silicon rubber production structure, relate to silicon rubber production unit manufacturing technology field, comprise mixing machine, the opening for feed of described mixing machine is connected to major ingredient pretreatment unit and auxiliary material pretreatment unit, and the discharge port of described mixing machine is connected with screw extrusion press by preheater, multi-section tube type polymerizer successively.Compared with prior art, the utility model can solve the problem that existing methyl vinyl silicone rubber production cost is high and quality is low.

And for example, Chinese patent 201320604700.2 discloses a kind of silicon rubber production unit, comprise reactor, reactor top and bottom are respectively equipped with powder opening for feed and discharge port, discharge port is communicated with worm conveyor, the discharge end top of worm conveyor is provided with adsorption orifice, reactor top is also provided with raw material return port, comprise storage tank, storage tank top and bottom are respectively equipped with storage tank import and storage tank outlet, storage tank import is communicated with by feed pipe with adsorption orifice, storage tank outlet is communicated with by discharge pipe with raw material return port, storage tank is provided with and the tensimeter of storage tank inner space and vacuum pump, powder opening for feed is provided with and prevents powder splinter device, and its inlet communication has powder feeder, the Jacket outlet of reactor is communicated with heat recycling device.Relate to silicon rubber technical field, solve powder in prior art add fashionable excessive, can not continuous charging, react that remaining liquid starting material is collected, reaction raw materials carries out drying and insulation time utilize the problem of additional energy source.

But in existing production technique, general device output investment ratio is comparatively large, and production efficiency is lower, also has certain pollutent and discharges.

Utility model content

Based on this, for the problems referred to above, be necessary to provide a kind of low volatility rubber continuous seepage structure, can enhance productivity, Improving The Quality of Products, reduce production cost, reduce environmental pollution.

A kind of low volatility rubber continuous seepage structure, comprise dehydrating kettle, mixing machine, polymerization reactor, de-low molecule device and discharging machine, the bottom of described dehydrating kettle is connected with the bottom of described mixing machine, described mixing machine is connected with described polymerization reactor, described polymerization reactor is connected with the top of described de-low molecule device, and the bottom of described de-low molecule device is connected with described discharging machine;

Described de-low molecule device comprises de-low still and vacuum pump, and described de-low still is provided with and somely vacuumizes hole, vacuumizes hole and be connected with described vacuum pump described in described de-low still passes through, and describedly takes off low still and is connected with described discharging machine.

Wherein in an embodiment, described de-low molecule device also comprises low molecule collector, and described low molecule collector is connected with described de-low still.

Wherein in an embodiment, described taking off also comprises prolong between low still and described low molecule collector.

Wherein in an embodiment, the top of described de-low still is provided with tube still heater.

Wherein in an embodiment, described tube still heater is two, and two described tube still heaters are in distributing up and down.

Wherein in an embodiment, the spacing between two described tube still heaters is 20 ~ 50 centimetres.

Wherein in an embodiment, described taking off also is provided with water cooler between low still and described discharging machine.

Above-mentioned low volatility rubber continuous seepage structure, by the bottom of dehydrating kettle is connected with the bottom of mixing machine, mixing machine is connected with polymerization reactor, polymerization reactor is connected with the top of de-low molecule device, the bottom of de-low molecule device is connected with discharging machine, can improve the production efficiency of rubber, Improving The Quality of Products, reduce production cost, reduce environmental pollution.

Accompanying drawing explanation

Fig. 1 is the structural representation of low volatility rubber continuous seepage structure in the utility model one embodiment;

Fig. 2 is the structural representation of major ingredient pre-treatment mechanism and auxiliary material pre-treatment mechanism in the utility model one embodiment;

Fig. 3 is the structural representation of dehydrating kettle in the utility model one embodiment;

Fig. 4 is the structural representation of mixing machine in the utility model one embodiment;

Fig. 5 is the structural representation of polymerization reactor in the utility model one embodiment;

Fig. 6 is the structural representation of de-low molecule device in the utility model one embodiment.

Embodiment

For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in detail embodiment of the present utility model below in conjunction with accompanying drawing.Set forth a lot of detail in the following description so that fully understand the utility model.But the utility model can be much different from alternate manner described here to implement, those skilled in the art can when doing similar improvement without prejudice to when the utility model intension, and therefore the utility model is by the restriction of following public concrete enforcement.

It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement just for illustrative purposes, do not represent it is unique embodiment.

Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in specification sheets of the present utility model herein just in order to describe concrete embodiment, is not intended to be restriction the utility model.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.

Such as, a kind of low volatility rubber continuous seepage structure, it is characterized in that, comprise dehydrating kettle, mixing machine, polymerization reactor, de-low molecule device and discharging machine, the bottom of described dehydrating kettle is connected with the bottom of described mixing machine, described mixing machine is connected with described polymerization reactor, and described polymerization reactor is connected with the top of described de-low molecule device, and the bottom of described de-low molecule device is connected with described discharging machine; Described de-low molecule device comprises de-low still and vacuum pump, and described de-low still is provided with and somely vacuumizes hole, vacuumizes hole and be connected with described vacuum pump described in described de-low still passes through, and describedly takes off low still and is connected with described discharging machine.

Refer to Fig. 1, it is the structural representation of low volatility rubber continuous seepage structure in the utility model one embodiment.

Low volatility rubber continuous seepage structure 10 comprises major ingredient pre-treatment mechanism 100, auxiliary material pre-treatment mechanism 200, dehydrating kettle 300, mixing machine 400, polymerization reactor 500, de-low molecule device 600 and discharging machine 700, major ingredient pre-treatment mechanism 100 and auxiliary material pre-treatment mechanism 200 are connected with dehydrating kettle 300 respectively, the bottom of dehydrating kettle 300 is connected with the bottom of mixing machine 400, mixing machine 400 is connected with polymerization reactor 500, polymerization reactor 500 is connected with the top of de-low molecule device 600, and the bottom of de-low molecule device 600 is connected with discharging machine 700.

Above-mentioned low volatility rubber continuous seepage structure, by the bottom of dehydrating kettle is connected with the bottom of mixing machine, mixing machine is connected with polymerization reactor, polymerization reactor is connected with the top of de-low molecule device, the bottom of de-low molecule device is connected with discharging machine, can improve the production efficiency of rubber, Improving The Quality of Products, reduce production cost, reduce environmental pollution.

In the present embodiment, also comprise Nitrogen plant 800 and vacuum pump 900, Nitrogen plant 800 is connected with dehydrating kettle 300, and vacuum pump 900 is connected with dehydrating kettle 300 and de-low molecule device 600 respectively.

Refer to Fig. 2, major ingredient pre-treatment mechanism 100 comprises the first test tank 110 and major ingredient strainer 120, first test tank 110 is connected with dehydrating kettle 300 by major ingredient strainer 120, preferably, is also provided with metering valve between major ingredient strainer 120 and dehydrating kettle 300.

Further, in major ingredient strainer 120, be provided with grid 121, the angle of grid 121 be 65 ° ~ 75 ° with largely by the impurity removing in major ingredient.Such as, described grid comprises the first grid and second grid of stacked setting, and wherein, the grid of described first grid is greater than the grid of described second grid, can obtain good filter effect like this.And for example, be also provided with spongy layer between described first grid and described second grid, hole is wherein greater than the grid of described second grid and is less than the grid of described first grid, like this, has the effect of the impurity in fabulous removing major ingredient.And for example, described spongy layer is for dredging hole spongy layer, and it has comparatively sparse emptying aperture structure.Preferably, described spongy layer comprises net muscle portion and sponge portion, and described net muscle portion has reticulated structure, and its mesh is described sponge portion.The hole in described sponge portion is greater than the grid of described second grid and is less than the grid of described first grid.

Further, the bottom of the first test tank 110 is also provided with recovery tube 111, major ingredient is after the first test tank 110 leaves standstill deposition, major ingredient with impurity is reclaimed from recovery tube 111, when major ingredient is clear shape, again major ingredient is flowed in major ingredient strainer 120, improve utilization ratio and the purity of major ingredient.

Further, in order to observe liquid level in the first test tank, refer to Fig. 2, the first test tank 110 is provided with liquidometer 112, by observing the data of liquidometer 112, conveniently can control the consumption of raw material, avoiding liquid to exceed safe altitude.

Please continue to refer to Fig. 2, auxiliary material pre-treatment mechanism 200 comprises the auxiliary material strainer 210, stirred pot 220 and the second test tank 230, second test tank 230 that are linked in sequence and is connected with dehydrating kettle 300.Preferably, also metering valve is provided with between the second test tank 230 and dehydrating kettle 300.Further, the bottom of the second test tank is also provided with recovering material pipe, and auxiliary material is after the second test tank leaves standstill deposition, auxiliary material with impurity is reclaimed from recovering material pipe, when auxiliary material is clear shape, then auxiliary material is flowed in auxiliary material strainer, to improve utilization ratio and the purity of auxiliary material.

Refer to Fig. 3, it is the structural representation of dehydrating kettle in the utility model one embodiment.

Dehydrating kettle 300 comprises kettle 310, be arranged at the agitator 320 in kettle 310 and be sheathed on the heating jacket 330 of kettle 310, nitrogen tube 311 is provided with in kettle 310, one end of nitrogen tube 311 is open design, namely, inlet end, and the side being arranged at kettle 310, the other end is enclosed construction, nitrogen tube 311 is spirane structure, and nitrogen tube 311 offers some production wells 312.The open end of nitrogen tube 311 is connected with Nitrogen plant 800.

Further, production well 312 is circular hole, and the diameter of production well 312 is 5 ~ 10mm.Further, the equal diameters of each production well 312, distributes to make gas uniform.

Further, some production wells 312 are uniformly distributed.Such as, adjacent two production wells 312 be spaced apart 25 ~ 35mm.And for example, the angle between the tangent line of adjacent two production wells 312 is 5 ° ~ 10 °.And for example, the spacing of production well increases gradually along with the distance apart from inlet end and reduces, that is, the spacing of the production well 312 of the position of close inlet end is greater than the spacing of the production well 312 away from the position of inlet end.

Further, the pitch of nitrogen tube 311 is 80 ~ 300mm, when pitch is less, the stroke of nitrogen tube 311 is excessive, and material cost is higher, and in nitrogen tube 311, gas velocity loss is larger, make the gas velocity of production well 312 less, when pitch is larger, the contact surface of gas and raw material is less, is difficult to fully mix with raw material.

Further, in order to reduce the stroke of nitrogen tube, such as, the inlet end of nitrogen tube 311 is arranged at the position of side by bottom of kettle 310, and for example, the height of the inlet end of nitrogen tube 311 is 1/8 ~ 1/3 of kettle 310 side height, and and for example, the height that the inlet end of nitrogen tube 311 is arranged is 1/6 ~ 1/3 of kettle 310 side height.

Further, agitator 320 comprises stir shaft 321 and the first stirring rake 322 of being arranged on stir shaft 321 and the second stirring rake 323, second stirring rake 323 are positioned at the below of the first stirring rake 322, and the first stirring rake 322 is positioned at the top of nitrogen tube 311.

Further, the diameter of the second stirring rake 323 is less than the screw diameter of nitrogen tube 311, avoids the stirring of nitrogen tube 311 to the second stirring rake 323 to cause interference.Further, the diameter of the second stirring rake 323 is 2/3 ~ 5/6 of the screw diameter of nitrogen tube 311, clashes into nitrogen tube 311, gas-liquid can be made again fully to mix when the second stirring rake 323 both can have been avoided to rotate.

Further, the second stirring rake 323 is several, and several second stirring rakes 323 are uniformly distributed, and the spacing between adjacent two the second stirring rakes is 80 ~ 100mm.

Further, the diameter of the first stirring rake 322 is greater than the diameter of the second stirring rake 323, to improve the region to material disturbance when the second stirring rake rotates.

Further, the top of kettle 310 is provided with vacuum orifice 315, and vacuum pump (not shown) is connected with kettle 310 by vacuum orifice 315.

Further, the centre of the bottom of kettle 310 offers discharge port 316, and discharge port 316 is connected with mixing machine 400 by bleeder valve 317.Such as, bleeder valve 317 is ball valve.

Above-mentioned dehydrating kettle, owing to arranging the nitrogen tube of spirane structure, by passing into nitrogen, can make raw material overturn, nitrogen is fully contacted with raw material, can carry away the micro-moisture in raw material secretly, make the water content in raw material be reduced to below 10ppm.

Refer to Fig. 4, it is the structural representation of mixing machine in the utility model one embodiment.

The hot water circulation pipeline 430 that mixing machine 400 comprises housing 410, is arranged at the spiral stirrer 420 in housing 410 and is arranged on housing 410.

Further, several baffle plates 440 are also provided with in housing 410.By arranging baffle plate 440, when the material in spiral stirrer 420 pairs of housings 410 stirs, intermolecular collision frequency can be increased, and then the material in housing 410 is fully mixed.

Further, baffle plate 440 is arranged at the bottom of housing 410, further, the height of each baffle plate 440 is unequal, and further, highly larger baffle plate 440 and highly less baffle plate 440 interval are arranged, that is, the wire between the vertex of each baffle plate 440 forms broken line.

In the present embodiment, housing 410 is the integral piece that steel plate is made through punch welding.In order to avoid housing 410 corrodes, housing 410 inwall is provided with anti-corrosion layer.Such as, described anti-corrosion layer comprises the carbon materials such as graphite, nano carbon material, quasi-diamond, and chemical physical property temperature, thermal conductivity is good.And for example, described anti-corrosion layer is quasi-diamond (DLC) coating be located on described accommodating cavity inwall, and for example, described diamond-like coating and described accommodating cavity inwall have also been provided with the chromiumcoating of solid attached effect, have stronger bonding force to make diamond-like coating and accommodating cavity inwall.Preferably, the thickness of described diamond-like coating is 1.0 ~ 2.0 microns, and the thickness of chromiumcoating is 10 ~ 40 nanometers.And for example, the composition of described diamond-like coating comprises the graphite-phase of 20% ~ 60% and the diamond phase of 80% ~ 40%.

Further, in order to make the mixing of materials in mixing machine even, such as, the top of housing 410 offers outlet 411, and the material in housing 410 enters polymer reactor 500 by outlet 411.Because the bottom of material from mixing machine enters, flow out from the top of mixing machine, the residence time of material in mixing machine can be increased, reach well-mixed object.

For the ease of the situation of material in observation mixing machine, such as, in housing 410, be provided with thermometer 412, by the temperature on observed temperature meter, conveniently can understand the situation of material in mixing machine.

Above-mentioned mixing machine, by arranging screw mixer and heating coil, heats up in whipping process, and the material entered in mixing machine can be made fully to mix, and can provide preparatory condition for follow-up reaction.

Refer to Fig. 5, it is the structural representation of polymerization reactor in the utility model one embodiment.

Polymerization reactor 500 comprises reaction tube 510, is arranged at the whipping appts 520 of reaction tube 510 and is arranged at the heating controller (not shown) outside reaction tube 510, whipping appts 520 comprises turning axle 521 and is arranged at the spiral helicine blade 522 on turning axle 521, blade 522 is made up of heat-conducting metal, and blade 522 and described heating controller, described heating controller is for heating blade 522.

In order to improve the heat-conductive characteristic of blade, and reduce resistance when blade rotates, such as, the material of blade 522 is aluminium alloy, like this, and the heat-conductive characteristic that can improve blade and the resistance reduced when blade rotates.

In order to improve the heat conductivility of blade further, improve the corrosion resistance nature of blade, such as, the surface of blade 522 is provided with Graphene coating, and for example, the thickness of described Graphene coating is 10 ~ 50 microns, and for example, the thickness of described Graphene coating is 20 ~ 40 microns, and for example, the thickness of described Graphene coating is 25 ~ 35 microns, utilizes the heat conductivility that Graphene is high, heat on blade is passed to rapidly in the material of reaction tube, accelerates the speed of response of material in reaction tube.

Further, for the ease of controlling the temperature in reaction tube, such as, temperature sensor (not shown) is also provided with in reaction tube 510, described temperature sensor is connected with described heating controller, temperature data in reaction tube is transferred in described heating controller by temperature sensor, and described heating controller regulates the temperature of blade automatically according to the data of temperature sensor feedback.

Further, in order to reduce the loss of heat in reaction tube, such as, the outer wall of reaction tube 510 is provided with insulation jacket 511, by arranging insulation jacket, can be reduced by reaction tube outer wall and scattering and disappearing to the heat in air, improves heat utilization rate.

Further, in order to the abundant mixing of material in reaction tube, such as, the height of blade 522 is 1/2 ~ 3/4 of the height of turning axle 521, and and for example, the height of blade 522 is 2/3 of the height of turning axle 521, like this, material in reaction tube can be made fully to mix.

Further, for the ease of the response situation of material in observation reaction tube, such as, the sidewall of reaction tube 510 is provided with visual window 512, and for example, visual window is the glass of high-strength corrosion-resisting, by arranging visual window, conveniently can observe the response situation of material in reaction tube, facilitate and timely reaction parameter in reaction tube to be regulated.

Above-mentioned polymerization reactor, by arranging spiral helicine heat conduction blade, is passed in material by heat when blade can be made to rotate fast, and the homogeneous temperature in reaction tube is distributed, and then improves the speed of reaction of material in reaction tube.

Refer to Fig. 6, it is the structural representation of de-low molecule device in the utility model one embodiment.

De-low molecule device 600 comprises de-low still 610 and low molecule collector 620, low molecule collector 620 is connected with de-low still 610, polymerization reactor 500 is connected with de-low still 610, de-low still 610 is connected with discharging machine 700, de-low still 610 is provided with several and vacuumizes hole 611, and de-low still 610 is connected with vacuum pump 900 by vacuumizing hole 611.

Be appreciated that material mainly utilizes high temperature by unreacted major ingredient through de-low molecule device, remaining auxiliary material and product separation, major ingredient and auxiliary material all can reach boiling point and gasify, or resolving into low molecular compound, these low molecular compounds can be taken away by vacuum, are recycled in low molecule collector.

Further, in order to slough the low molecule in product as far as possible, such as, prolong 630 is also provided with in de-low still 610 and low molecule collector 620, low molecular compound flows in low molecule collector 620 after forming liquid by prolong 630 liquefaction, like this, can avoiding entering low molecular compound in low molecule collector by diffusing in de-low still, improving low molecular removal efficiency.

Further, the top of de-low still 610 is provided with tube still heater 612, further, tube still heater 612 is two, and two tube still heaters 612 are in upper and lower series arrangement, further, spacing between two tube still heaters 612 is 20 ~ 50 centimetres, when being heated to uniform temp, shortens the stroke of product in tube still heater, decrease the duration of contact of product and high temperature tube still heater, thus the crosslinked and yellowing phenomenon produced after reducing the contact of product high temperature tube wall.

Further, refer to Fig. 6, the bottom of de-low still 610 is coniform, like this, can increase the residence time of product at de-low still 610, improve the removal efficiency of low molecular compound in product.

Further, in order to reduce the temperature entering product in discharging machine, such as, de-between low still 610 and discharging machine 700, be also provided with water cooler 640, by the cooling of water cooler, make the product temperature that enters in discharging machine lower.

In the present embodiment, discharging machine 700 is continuous discharge machine, is provided with cooling water coil 710 in discharging machine 700, by the cooling of water coolant, can reduce the temperature of product in discharging machine further.

Further, in order to enhance productivity, be provided with extrusion screw rod 720 in discharging machine 700, under the drive of extrusion screw rod 720, product accelerates the translational speed to discharging machine outlet, to enhance productivity.

In order to improve the utilization ratio of heat energy further, such as, also comprise waste-heat recovery device (not shown), described waste-heat recovery device is connected with cooling water coil 710, waste-heat recovery device is flowed into by the water coolant after heating, both can avoid causing environmental pollution, but also can recycle heat energy, improve the utilization ratio of heat energy.

In order to understand above-mentioned low volatility rubber continuous seepage structure better, the utility model also provides a kind of low volatility rubber production technique, and it comprises the steps:

S101, by major ingredient DMC (dimethyl siloxane) suction first test tank leave standstill 4 ~ 6 hours, by the recovery tube bottom the first test tank, impurity is released, until release colourless transparent liquid, major ingredient is put into major ingredient strainer and filters.

S102, open metering valve, make the major ingredient after filtration enter in dehydrating kettle, be heated to 55 ~ 65 DEG C, open vacuum pump evacuation to dehydrating kettle, simultaneously to dehydrating kettle nitrogen blowing bubbling, nitrogen flow controls at about 0.4 ~ 0.6m ³/ h, maintains temperature of charge 60 ~ 70 DEG C in still, dewaters 6 ~ 8 hours.

It should be noted that, when vacuumizing, first vacuum valve is opened slightly, when dehydrating kettle internal pressure is reduced to 1/3 of normal pressure, vacuum valve is all opened, avoid that pressure difference is excessive causes pipeline breaking.

S103, the major ingredient in dehydrating kettle is cooled to 40 ~ 50 DEG C, add auxiliary material, auxiliary material comprises methyl ethylene ring body (VMC), closure agent, catalyst by proportion join in auxiliary material strainer and filter, and is sent into by the auxiliary material after filtering after fully stirring in stirred pot, sends into after leaving standstill in the second test tank, send into again in dehydrating kettle, continue maintenance to vacuumize, nitrogen bubble 30 minutes, stops vacuumizing, eliminate vacuum with nitrogen, make in dehydrating kettle, to keep more than 0.01Mpa for subsequent use.

Wherein, the major ingredient of closure agent is the agent of vinyl double-seal head, and the add-on of closure agent is 0.1 ~ 1wt% of siloxanes, and catalyzer is Tetramethylammonium hydroxide.

S105, the major ingredient after dehydration and auxiliary material sent in mixing machine and stirs 1 ~ 2 hour, and be heated to 60 ~ 70 DEG C.

S106, send in polymerization reactor by the major ingredient in mixing machine and auxiliary material, the temperature controlled in polymerization reactor is 105 ~ 115 DEG C, stirs after 30 minutes and leaves standstill 1 hour, to continue to stir after 30 minutes standing 1 hour again.

S107, the product after polymerization is sent in de-low molecule device with the speed of 230 ~ 300kg/h, de-low molecule device is heated, temperature remains on 150 ~ 200 DEG C, when de-low molecule device upper part is full of material, cool de-low molecule device, open vacuum pump to vacuumize de-low molecule device, regulate temperature to about 150 ~ 190 DEG C, make the temperature of sizing material control at 155 DEG C ~ 175 DEG C, sizing material is, under silk noil shape is hung, remove low molecule under vacuo.

Wherein, the temperature controlling upper strata tube still heater is 150 ~ 170 DEG C, and the temperature of lower floor's tube still heater is 170 ~ 200 DEG C, and the time that product stops between upper strata tube still heater and lower floor's tube still heater is 10 ~ 30 minutes.

S108, when having glue bottom de-low molecule device, open discharging machine, after discharging, obtain low volatility rubber.

Such as, need to regulate the extrusion screw rod rotating speed of discharging machine to make to have remained a small amount of sizing material in de-low still, in order to avoid air bleeds.

Above-mentioned low volatility rubber continuous seepage structure, by the bottom of dehydrating kettle is connected with the bottom of mixing machine, mixing machine is connected with polymerization reactor, polymerization reactor is connected with the top of de-low molecule device, the bottom of de-low molecule device is connected with discharging machine, can improve the production efficiency of rubber, Improving The Quality of Products, reduce production cost, reduce environmental pollution.

Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this specification sheets is recorded.

The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.

Claims (7)

1. a low volatility rubber continuous seepage structure, it is characterized in that, comprise dehydrating kettle, mixing machine, polymerization reactor, de-low molecule device and discharging machine, the bottom of described dehydrating kettle is connected with the bottom of described mixing machine, described mixing machine is connected with described polymerization reactor, described polymerization reactor is connected with the top of described de-low molecule device, and the bottom of described de-low molecule device is connected with described discharging machine;

Described de-low molecule device comprises de-low still and vacuum pump, and described de-low still is provided with and somely vacuumizes hole, vacuumizes hole and be connected with described vacuum pump described in described de-low still passes through, and describedly takes off low still and is connected with described discharging machine.

2. low volatility rubber continuous seepage structure according to claim 1, is characterized in that, described de-low molecule device also comprises low molecule collector, and described low molecule collector is connected with described de-low still.

3. low volatility rubber continuous seepage structure according to claim 1, is characterized in that, described taking off also comprises prolong between low still and described low molecule collector.

4. low volatility rubber continuous seepage structure according to claim 1, is characterized in that, the top of described de-low still is provided with tube still heater.

5. low volatility rubber continuous seepage structure according to claim 4, it is characterized in that, described tube still heater is two, and two described tube still heaters are in distributing up and down.

6. low volatility rubber continuous seepage structure according to claim 5, it is characterized in that, the spacing between two described tube still heaters is 20 ~ 50 centimetres.

7. low volatility rubber continuous seepage structure according to claim 1, is characterized in that, described taking off also is provided with water cooler between low still and described discharging machine.