CN104786381B - The process units and its method that a kind of liquid rubber is kneaded - Google Patents

The process units and its method that a kind of liquid rubber is kneaded Download PDF

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CN104786381B
CN104786381B CN201510167656.7A CN201510167656A CN104786381B CN 104786381 B CN104786381 B CN 104786381B CN 201510167656 A CN201510167656 A CN 201510167656A CN 104786381 B CN104786381 B CN 104786381B
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measuring tank
coagulation
pump
tank
latex
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CN104786381A (en
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赵勇
程硕
柳雨
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Xishuangbanna Shengbairun New Materials Co.,Ltd.
Xishuangbanna Shengnaipute New Materials Co.,Ltd.
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XUZHOU SHENGNAIPUTE MINING EQUIPMENT MANUFACTURING Co Ltd
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Abstract

The process units and its method being kneaded the invention discloses a kind of liquid rubber.The batch mixing output device (2) of the process units includes spreading extrusion die (26), coagulation rubber extruding machine (27), coagulation glue storage tank (28) and static mixer (29);The upper end of the coagulation glue storage tank is connected with static mixer, and its lower end is connected with coagulation rubber extruding machine;The right-hand member of the coagulation rubber extruding machine is connected with spreading extrusion die.The production method of the liquid rubber, mixed emulsion enters static mixer at a high speed with the black emulsion of black wood charcoal, moment mixing, enter coagulation glue storage tank after condensing, the coagulation glue of piece banding is extruded into by spreading extrusion die, enter after finally being squeezed the water out by dewaterer in microwave drier, output obtains qualified products.Energy consumption of the invention is small, pollution is small, can make black wood charcoal is black to have good dispersion effect in liquid latex, the rubber produced has the excellent combination property such as high resiliency, soft, high maximum elongation and high tensile.

Description

The process units and its method that a kind of liquid rubber is kneaded
Technical field
The present invention relates to rubber processing, and in particular to the process units and its method that a kind of liquid rubber is kneaded.
Background technology
Rubber is a kind of flexible polymer.Rubber can obtain or artificial from the myron of some plants , both considerable application and products, such as tire, packing ring etc., then as Important Economic crop.Rubber is by raw material point For natural rubber and synthetic rubber;It is divided into block rubber, latex, liquid rubber and powdered rubber by form.Latex is rubber Colloidal aqueous dispersion;Liquid rubber is the oligomer of rubber, generally sticky liquid before unvulcanized;Powdered rubber is by breast Glue be processed into it is powdered, with sharp dispensing and processing and fabricating.
The most common rubber mixing technique flow of modern rubber industry is:Reinforcing agent that rubber is coordinated with it, vulcanizing agent, promotion Agent, age resistor, softening agent, filler etc. mix kneading into elastomeric compound semi-finished product.Since American inventor Charlie in 1844 is ancient Since moral Ilyushin has invented vulcanization rubber technology, following substantially technological process has been followed always:Tree cut latex-be dried into dry glue- It plasticate-is kneaded, the ingredients such as sulphur, reinforcing agent, age resistor, softening agent, filler and accelerator is added during mixing, are finally obtained into Product, vulcanization are last one of manufacturing procedures therein.Vulcanization be exactly sizing material under certain condition, rubber macromolecule is by linear structure It is changed into the cross-linking process of network structure.However, there is the problem of three aspects in this traditional handicraft for natural rubber:
(1) product obtained by is unable to reach more than 80% high rebound degree, and shore hardness is higher than 38 degree, tensile strength Less than 28MPa, therefore, obtained product rebound degree is low, hardness is high, tensile strength is low, and its combination property is not good enough, can not apply In the very big mine abrasion-proof accessories of discrete element pounding wear;
(2) in mixing process, environment can be caused to a certain degree as the carbon black of reinforcing agent and other powdery dispensings On pollution, so as to influence the health of operating personnel;
(3) in plasticating and being kneaded this two procedures, the energy consumed is too big.
It is to solve the above problems, external anti-using liquid latex, emulsification white carbon, emulsification sulphur, emulsification promoter, emulsification The ingredients such as old agent are thoroughly mixed under liquid condition, and the process is referred to as liquid and is kneaded, and formedness is obtained after finally drying The rubber of energy, and rebound degree reaches 80%, shore hardness is 38 degree, tensile strength 25MPa.
However, as the effect of reinforcing agent to can not show a candle to black wood charcoal black for white carbon.But if add black wood charcoal is black as reinforcing agent Enter into latex, latex can then be demulsified rapidly solidification, so as to lead to not be further continued for mix;In addition, above-mentioned external use Technological process in, drying process is to be heated at normal temperatures and pressures using microwave or steam through heat radiation caused by exchanger Carried out under conditions of 100 DEG C or so, however, 100 DEG C of high temperature plays destruction, and thermal effect to the beneficiating ingredient in latex Rate is low.
The content of the invention
The process units and its method being kneaded it is an object of the invention to provide a kind of liquid rubber, with prior art phase Than its energy consumption is small, pollution is small, can make black wood charcoal is black to have good dispersion effect, the rubber produced in liquid latex With the combination property that high resiliency, soft, high maximum elongation and high tensile etc. are excellent.
To achieve the above object, the process units that this liquid rubber is kneaded, including the Raw material processing being sequentially connected and metering Device, batch mixing output device and product dehydrate and drying device, described batch mixing output device include spreading extrusion die, mixed Gel extruder, coagulation glue storage tank and static mixer;The upper end of the static mixer and Raw material processing and metering device phase Even, its lower end is connected with coagulation glue storage tank;The lower end of the coagulation glue storage tank is connected with coagulation rubber extruding machine;It is described to spread extrusion The left end of die head is connected with coagulation rubber extruding machine, and its right-hand member is connected with product dehydrate and drying device;Described Raw material processing and Metering device includes mixed latex liquid constant displacement pump, carbon black emulsion constant displacement pump, carbon black emulsifying mill, carbon black measuring tank, vulcanizing agent breast Change mill, vulcanizing agent measuring tank, age resistor emulsifying mill, age resistor measuring tank, accelerator emulsifying mill, accelerator measuring tank, antiscorching agent Emulsifying mill, antiscorching agent measuring tank, latex measuring tank, latex storage tank, emulsion pump, emulsion mixing weighing tank and mixed glue solution Delivery pump, the carbon black emulsifying mill, vulcanizing agent emulsifying mill, age resistor emulsifying mill, accelerator emulsifying mill and antiscorching agent emulsifying mill Lower end is upper with carbon black measuring tank, vulcanizing agent measuring tank, age resistor measuring tank, accelerator measuring tank and antiscorching agent measuring tank respectively End is connected;The lower end of the latex storage tank is connected by emulsion pump with the upper end of latex measuring tank;The carbon black metering The lower end of tank is connected with carbon black emulsion constant displacement pump;It is the vulcanizing agent measuring tank, age resistor measuring tank, accelerator measuring tank, anti- Upper end of the lower end of burnt agent measuring tank and latex measuring tank with emulsion mixing weighing tank is connected;The emulsion mixing weighing tank Lower end is connected by mixed glue solution delivery pump with mixed latex liquid constant displacement pump;The mixed latex liquid constant displacement pump and carbon black emulsion Constant displacement pump is in parallel with the upper end of static mixer.
Preferably, described static mixer is duct type static mixer.
Preferably, described coagulation rubber extruding machine is one kind in screw, gear type and diaphragm type.
Preferably, described carbon black emulsifying mill, vulcanizing agent emulsifying mill, age resistor emulsifying mill, accelerator emulsifying mill and anti-scorch Agent emulsifying mill is vacuum basket type sand mill.
Preferably, described emulsion pump is one kind in membrane pump, piston pump and peristaltic pump.
Preferably, described product dehydrate and drying device include elastomeric compound load wagon, elastomeric compound rear pump, microwave drying Stove, water leg and dewaterer, the water leg are placed on the lower section of dewaterer;The transmission belt of the microwave drying furnace interior is from a left side To the right side through between dewaterer and elastomeric compound rear pump;The elastomeric compound load wagon is located at the lower section of elastomeric compound rear pump;Institute State dewaterer and be connected with spreading the right-hand member of extrusion die.
Compared with prior art, the present invention has the advantage that:
(1) mixing suitable for liquid rubber produces and processes, and environment is made so as to avoid carbon black and other powdery dispensings Into pollution;
(2) when black wood charcoal is black to be added to as reinforcing agent in latex, static mixer of the invention, it can prevent that latex is fast The problem of speed demulsification solidification, so as to make black wood charcoal is black there is good dispersion effect in liquid latex;
(3) in of the invention product dehydrate and drying device, microwave drier design temperature is less than 70, DEG C and foreign technology To compare, its drying temperature is low, and so as to prevent destruction of the high temperature to the beneficiating ingredient in latex, and its thermal efficiency is high, so that It is low to obtain whole process units energy consumption;
(4) rubber that the process units is produced has high resiliency, soft, high maximum elongation and high tensile Etc. excellent combination property.
Brief description of the drawings
Fig. 1 is the overall schematic of the present invention;
Fig. 2 is the structural representation of Raw material processing and metering device in the present invention;
Fig. 3 is the structural representation of batch mixing output device in the present invention;
Fig. 4 is the structural representation of product dehydrate and drying device in the present invention;
In figure:1st, Raw material processing and metering device, 2, batch mixing output device, 3, dehydration and drying device, 4, mixed latex Liquid constant displacement pump, 5, carbon black emulsion constant displacement pump, 6, carbon black emulsifying mill, 7, carbon black measuring tank, 8, vulcanizing agent emulsifying mill, 9, vulcanizing agent Measuring tank, 10, age resistor emulsifying mill, 11, age resistor measuring tank, 12, accelerator emulsifying mill, 13, accelerator measuring tank, 14, anti- Burnt agent emulsifying mill, 15, antiscorching agent measuring tank, 16, latex measuring tank, 17, latex storage tank, 18, emulsion pump, 19, emulsion Mixing weighing tank, 20, mixed glue solution delivery pump, 21, elastomeric compound load wagon, 22, elastomeric compound rear pump, 23, microwave drier, 24th, water leg, 25, dewaterer, 26, spread extrusion die, 27, coagulation rubber extruding machine, 28, coagulation glue storage tank, 29, static mixing Device.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
As shown in figure 1, this liquid rubber be kneaded process units, including be sequentially connected Raw material processing and metering device 1, Batch mixing output device 2 and product dehydrate and drying device 3.As shown in figure 3, batch mixing output device 2 includes spreading extrusion die 26th, coagulation rubber extruding machine 27, coagulation glue storage tank 28 and static mixer 29;The upper end of the static mixer 29 and Raw material processing It is connected with metering device 1, its lower end is connected with coagulation glue storage tank 28;The lower end of the coagulation glue storage tank 28 and coagulation rubber extruding machine 27 are connected;The left end for spreading extrusion die 26 is connected with coagulation rubber extruding machine 27, its right-hand member and product dehydrate and dry dress 3 are put to be connected.
Described static mixer 29 can be duct type static mixer, or SV types static mixer, SK types Static mixer, SX types static mixer, SH types static mixer and SH type static mixers.What is selected in the present invention is pipe Road formula static mixer, because duct type static mixer compared with other 5 kinds of static mixers, has more efficient, quick, low The advantages that energy consumption, good diffusion effect.
Described coagulation rubber extruding machine 27 can be one kind in screw, gear type and diaphragm type.
As shown in Fig. 2 the Raw material processing and metering device 1 in the present invention include mixed latex liquid constant displacement pump 4, carbon black emulsifies Liquid constant displacement pump 5, carbon black emulsifying mill 6, carbon black measuring tank 7, vulcanizing agent emulsifying mill 8, vulcanizing agent measuring tank 9, age resistor emulsifying mill 10, Age resistor measuring tank 11, accelerator emulsifying mill 12, accelerator measuring tank 13, antiscorching agent emulsifying mill 14, antiscorching agent measuring tank 15, breast Glue measuring tank 16, latex storage tank 17, emulsion pump 18, emulsion mixing weighing tank 19 and mixed glue solution delivery pump 20, it is described Carbon black emulsifying mill 6, vulcanizing agent emulsifying mill 8, age resistor emulsifying mill 10, the lower end of accelerator emulsifying mill 12 and antiscorching agent emulsifying mill 14 Respectively with carbon black measuring tank 7, vulcanizing agent measuring tank 9, age resistor measuring tank 11, accelerator measuring tank 13 and antiscorching agent measuring tank 15 Upper end be connected;The lower end of the latex storage tank 17 is connected by emulsion pump 18 with the upper end of latex measuring tank 16;Institute The lower end for stating carbon black measuring tank 7 is connected with carbon black emulsion constant displacement pump 5;The vulcanizing agent measuring tank 9, age resistor measuring tank 11, Upper end phase of the lower end of accelerator measuring tank 13, antiscorching agent measuring tank 15 and latex measuring tank 16 with emulsion mixing weighing tank 19 Even;The lower end of the emulsion mixing weighing tank 19 is connected by mixed glue solution delivery pump 20 with mixed latex liquid constant displacement pump 4;It is described Mixed latex liquid constant displacement pump 4 and carbon black emulsion constant displacement pump 5 are in parallel with the upper end of static mixer 29.The present invention can also use people Work is stirred and measured, but it need to consume substantial amounts of people compared with the Raw material processing and metering device 1 that are used in the present embodiment Power and efficiency is low, can not realize automated production.
Described carbon black emulsifying mill 6, vulcanizing agent emulsifying mill 8, age resistor emulsifying mill 10, accelerator emulsifying mill 12 and antiscorching agent Emulsifying mill 14 is vacuum basket type sand mill, or horizontal sand mill or vertical grinding machine.What is selected in the present invention is Vacuum basket type sand mill, because being applied to process units production efficiency height, and Emulsion particle size point from vacuum basket type sand mill Cloth section is narrower, distribution of particles evenly so that emulsion dispersion is better.
Described emulsion pump 18 is one kind in membrane pump, piston pump and peristaltic pump.
As shown in figure 4, the product dehydrate and drying device 3 in the present invention include elastomeric compound load wagon 21, elastomeric compound exports Pump 22, microwave drier 23, water leg 24 and dewaterer 25, the water leg 24 are placed on the lower section of dewaterer 25;It is described micro- Transmission belt inside ripple drying oven 23 is from left to right through between dewaterer 25 and elastomeric compound rear pump 22;The mixing mucilage binding Carrier vehicle 21 is located at the lower section of elastomeric compound rear pump 22;The dewaterer 25 is connected with spreading the right-hand member of extrusion die 26.The present invention Hot-air caused by heated-air drying caused by burning diesel oil or Electric heat oven can also be used to dry, what the present embodiment was selected is Microwave drier, microwave drying furnace temperature are less than 70 DEG C, and its drying temperature is low, so as to be produced to the beneficiating ingredient in latex Destruction, and the thermal efficiency is high.
The method being specifically kneaded is:By carbon black, dispersant, the metered carbon black emulsifying mill 6 of water, carbon black meter is entered after emulsification Measuring tank 7 is standby;By vulcanizing agent, suspending agent, the metered vulcanizing agent emulsifying mill 8 of water, it is standby that vulcanizing agent measuring tank 8 is entered after emulsification With;By age resistor, suspending agent, the metered age resistor emulsifying mill 10 of water, it is standby that age resistor measuring tank 11 is entered after emulsification;It will promote Enter agent, suspending agent, the metered accelerator emulsifying mill 12 of water, it is standby that accelerator measuring tank 13 is entered after emulsification;By antiscorching agent, hang Floating agent, the metered antiscorching agent emulsifying mill 14 of water, it is standby that antiscorching agent measuring tank 15 is entered after emulsification;Latex storage tank will be stored in It is standby that the latex that concentration in 17 is 60% is added to latex measuring tank 16.
Latex is measured by latex measuring tank 16 and enters emulsion mixing weighing tank 19;Then, emulsification vulcanization is measured respectively Agent, antioxidant emulsion, emulsification antiscorching agent are mixed into emulsion mixing weighing tank 19, then add emulsification promoter to enter emulsion mixing weighing tank 19, stirring at normal temperature is uniform.
The emulsification carbon black in carbon black measuring tank 7 is stored in through carbon black emulsion constant displacement pump 5, is input into by setting pressure, flow velocity Enter in static mixer 29;The blended He of glue delivery pump 20 of emulsion mixed liquor priority being stored in emulsion mixing weighing tank 19 Mixed latex liquid constant displacement pump 4, it is input into by setting pressure, flow velocity in static mixer 29.
Carbon black liquid and emulsion mixed liquor are emulsified by a certain percentage, with 7m/s flow velocity, at a high speed into static mixer 29, wink Between disperse, mix, condense into and enter coagulation glue storage tank 28 containing the flowable mixing of rubber of large quantity of moisture, mixing temperature is less than 70 ℃。
Coagulation glue by spreading extrusion die 26, is extruded into piece banding coagulation glue by coagulation glue by coagulation rubber extruding machine 27, is squeezed The coagulation glue of banding in blocks is entered back into after dewaterer 25 extrudes big portion's moisture, is entered in microwave drier 23 and is dried, moisture content contains Amount is less than 0.5%, the qualified output of product.
The performance of rubber:
Detection project Test result External Linatex companies index
Rebound degree/% 81±1 75±1
Hardness (shore A types)/degree 38±1 38±1
Elongation at break/% 830±20 750±20
Tensile strength/MPa 32±1 25±1
As can be seen from the above table, the liquid rubber performance that the present invention produces is superior to the index of external Linatex companies, and And with excellent combination properties such as high resiliency, soft, high maximum elongation and high tensiles.

Claims (6)

1. the process units that a kind of liquid rubber is kneaded, including the Raw material processing and metering device (1), the batch mixing that are sequentially connected export Device (2) and product dehydrate and drying device (3), it is characterised in that:Described batch mixing output device (2) includes spreading extrusion Die head (26), coagulation rubber extruding machine (27), coagulation glue storage tank (28) and static mixer (29);The static mixer (29) Upper end is connected with Raw material processing and metering device (1), and its lower end is connected with coagulation glue storage tank (28);The coagulation glue storage tank (28) Lower end be connected with coagulation rubber extruding machine (27);The left end for spreading extrusion die (26) and coagulation rubber extruding machine (27) phase Even, its right-hand member is connected with product dehydrate and drying device (3);
Described Raw material processing and metering device (1) include mixed latex liquid constant displacement pump (4), carbon black emulsion constant displacement pump (5), charcoal It is black emulsifying mill (6), carbon black measuring tank (7), vulcanizing agent emulsifying mill (8), vulcanizing agent measuring tank (9), age resistor emulsifying mill (10), anti- Old agent measuring tank (11), accelerator emulsifying mill (12), accelerator measuring tank (13), antiscorching agent emulsifying mill (14), antiscorching agent metering Tank (15), latex measuring tank (16), latex storage tank (17), emulsion pump (18), emulsion mixing weighing tank (19) and mixing Glue delivery pump (20), the carbon black emulsifying mill (6), vulcanizing agent emulsifying mill (8), age resistor emulsifying mill (10), accelerator emulsification Measured respectively with carbon black measuring tank (7), vulcanizing agent measuring tank (9), age resistor the lower end for grinding (12) and antiscorching agent emulsifying mill (14) The upper end of tank (11), accelerator measuring tank (13) and antiscorching agent measuring tank (15) is connected;The lower end of the latex storage tank (17) It is connected by emulsion pump (18) with the upper end of latex measuring tank (16);The lower end of the carbon black measuring tank (7) and carbon black breast Change liquid constant displacement pump (5) to be connected;It is the vulcanizing agent measuring tank (9), age resistor measuring tank (11), accelerator measuring tank (13), anti-scorch Upper end of the lower end of agent measuring tank (15) and latex measuring tank (16) with emulsion mixing weighing tank (19) is connected;The emulsion mixes The lower end of total measuring tank (19) is connected by mixed glue solution delivery pump (20) with mixed latex liquid constant displacement pump (4);The mixing breast Glue constant displacement pump (4) and carbon black emulsion constant displacement pump (5) are in parallel with the upper end of static mixer (29).
2. the process units that a kind of liquid rubber according to claim 1 is kneaded, it is characterised in that:Described static mixing Device (29) is duct type static mixer.
3. the process units that a kind of liquid rubber according to claim 1 or 2 is kneaded, it is characterised in that:Described coagulation Rubber extruding machine (27) is one kind in screw, gear type and diaphragm type.
4. the process units that a kind of liquid rubber according to claim 1 is kneaded, it is characterised in that:Described carbon black emulsification It is true to grind (6), vulcanizing agent emulsifying mill (8), age resistor emulsifying mill (10), accelerator emulsifying mill (12) and antiscorching agent emulsifying mill (14) Empty basket type sand mill.
5. the process units that a kind of liquid rubber according to claim 1 is kneaded, it is characterised in that:Described latex conveying Pump (18) is one kind in membrane pump, piston pump and peristaltic pump.
6. the process units that a kind of liquid rubber according to claim 1 or 2 is kneaded, it is characterised in that:Described product Dehydration and drying device (3) include elastomeric compound load wagon (21), elastomeric compound rear pump (22), microwave drier (23), water leg (24) and dewaterer (25), the water leg (24) are placed on the lower section of dewaterer (25);The microwave drier (23) is internal Transmission belt from left to right through between dewaterer (25) and elastomeric compound rear pump (22);Elastomeric compound load wagon (21) position In the lower section of elastomeric compound rear pump (22);The dewaterer (25) is connected with spreading the right-hand member of extrusion die (26).
CN201510167656.7A 2015-04-09 2015-04-09 The process units and its method that a kind of liquid rubber is kneaded Active CN104786381B (en)

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CN106273038A (en) * 2016-08-29 2017-01-04 强新正品(苏州)环保材料科技有限公司 A kind of efficient silica gel production equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064813A2 (en) * 1981-04-17 1982-11-17 Mobil Oil Corporation A method of making optically clear oriented polyimide film
CN103613919A (en) * 2013-11-20 2014-03-05 南京诚盟机械有限公司 Shoe material hot-melt adhesive sheet and production process and equipment thereof
CN104501564A (en) * 2014-12-24 2015-04-08 乳山市日晟机械制造有限公司 Multilevel drying equipment
CN204546816U (en) * 2015-04-09 2015-08-12 徐州天诺矿山设备有限公司 The process units that liquid rubber is mixing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064813A2 (en) * 1981-04-17 1982-11-17 Mobil Oil Corporation A method of making optically clear oriented polyimide film
CN103613919A (en) * 2013-11-20 2014-03-05 南京诚盟机械有限公司 Shoe material hot-melt adhesive sheet and production process and equipment thereof
CN104501564A (en) * 2014-12-24 2015-04-08 乳山市日晟机械制造有限公司 Multilevel drying equipment
CN204546816U (en) * 2015-04-09 2015-08-12 徐州天诺矿山设备有限公司 The process units that liquid rubber is mixing

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