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Publication numberCN103264453 A
Publication typeApplication
Application numberCN 201310185993
Publication date28 Aug 2013
Filing date20 May 2013
Priority date20 May 2013
Publication number201310185993.X, CN 103264453 A, CN 103264453A, CN 201310185993, CN-A-103264453, CN103264453 A, CN103264453A, CN201310185993, CN201310185993.X
Inventors徐伟
Applicant深圳市翰易机械有限公司
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Thermoplastic polyurethane elastomer production device and method
CN 103264453 A
Abstract
The invention discloses a thermoplastic polyurethane elastomer production device which comprises a twin-screw extruder, an in-water pelletizer, a dehydrator, a vibration screen, a packing machine and a material cabin, wherein the in-water pelletizer is connected to the rear end of the twin-screw extruder; the dehydrator is connected with the in-water pelletizer; the vibration screen is connected with the dehydrator; a discharging port is arranged at the lower part of the vibration screen; the packing machine is connected with the vibration screen; and the material cabin is connected with the packing machine. The thermoplastic polyurethane elastomer production device is characterized in that three liquid material tanks are directly connected to the front end of the twin-screw extruder; raw material measuring members are arranged at the upper parts of the liquid material tanks; and at least twelve raw material continuous reaction stations on which the liquid materials are sufficiently reacted are arranged at the front part of the twin-screw extruder. The ratio of raw materials of the device is controllable, the raw materials are sufficiently reacted, the working efficiency is high, the occupied space is small, and the environmental pollution is greatly reduced.
Claims(6)  translated from Chinese
1.一种热塑性聚氨酯弹性体生产装置,包括:双螺杆挤出机,与所述双螺杆挤出机后端连接的水中造粒机,与所述水中造粒机连接的脱水机,与所述脱水机连接的下部设有卸料口的振动筛,设置于所述振动筛下部的包装机,与所述包装机连接的料仓,其特征在于: 所述双螺杆挤出机前端直接连有三个液料罐,所述液料罐上部设置有控制原料供给量的原料计量部件,所述双螺杆挤出机的前部设置有可以使液料充分反应的至少十二个原料连续反应工位。 A thermoplastic polyurethane elastomer production apparatus comprising: a twin-screw extruder, a twin-screw extruder with the back-end connectivity of the water granulator, granulating machine is connected to the water of dehydration, and the the lower part of said dryer is connected with a discharge port shaker, provided in the lower part of the shaker packaging machines, packaging machines connected to the silo, characterized in that: the front end of the twin-screw extruder directly connected There are three liquid feed tank, the upper part of the liquid feed tank provided with a control quantity of raw material supply metering member, the front twin-screw extruder provided with a liquid material can fully reflect the raw material is at least twelve consecutive reaction Workers bit.
2.根据权利要求1所述的一种热塑性聚氨酯弹性体生产装置,其特征在于:所述三个液料罐为多元醇料罐、多异氰酸酯料罐和丁二醇料罐。 2. A thermoplastic polyurethane elastomer plant according to claim 1, characterized in that: said three liquid tank polyol feed tank, the polyisocyanate tank and butanediol tank.
3.根据权利要求1或2所述的一种热塑性聚氨酯弹性体生产装置,其特征在于:所述三个液料罐的原料计量部件设置有计量泵,与所述计量泵相连并控制其流量的质量流量计,以及与所述质量流量计相连并控制其流量的伺服调速器;所述伺服调速器、质量流量计和计量泵由电脑自动控制。 3. A thermoplastic polyurethane elastomer production apparatus according to claim 1 or claim 2, wherein: said three liquid raw material tank metering member provided with a metering pump, connected to the metering pump and the flow control mass flow meter, and the meter is connected to the quality and control the flow of the servo governor; the servo drives, mass flow meters and metering pump automatically controlled by a computer.
4.根据权利要求3所述的一种热塑性聚氨酯弹性体生产装置,其特征在于:所述热塑性聚氨酯弹性体造粒系统还包括与所述双螺杆挤出机中后段连接的单螺杆造粒机,所述单螺杆造粒机设置有与其相连的粉体电子计量称。 4. A thermoplastic polyurethane elastomer production apparatus according to claim 3, wherein: said thermoplastic polyurethane elastomer granulating system further comprises a single screw granulator and the rear section of the twin-screw extruder connected machine, the single screw granulator provided with an electronic metering powder attached thereto said.
5.根据权利要求3所述的一种热塑性聚氨酯弹性体生产装置,其特征在于:所述水中造粒机与所述脱水机以及所述包装机与所述料仓之间分别通过料粒输送管道相连接。 A thermoplastic polyurethane elastomer production apparatus according to claim 3, characterized in that: between the water and the pelletizer and dryer hopper of the packaging machine and the pellets are transported through pipes are connected.
6.一种利用前述任一权利要求所述的一种热塑性聚氨酯弹性体生产装置进行TPU造粒的方法,其特征在于:所述一种TPU造粒方法包括以下步骤:(1)将多元醇、多异氰酸酯和丁二醇分别注入相应的多元醇料罐、多异氰酸酯料罐和丁二醇料罐;(2)在电脑中设置各原料的比例,利用每个液料罐的原料计量部件的各自伺服调速器控制相应的质量流量计控制原料的流量,从而控制各自计量泵的输出流量,从而改变不同的混合指数;(3)各自计量单位的质量流量计分别对三个组份流量参数及混合比参数进行检测、校正以实现组份流量的调节和控制;(4)计量完成后的三份原料组份在一定反应温度下在相互独立的至少十二个原料连续反应工位中依次连续混合反应;(5)双螺杆挤出机对组合好的原料`进行挤出后,经水中造粒机造粒;(6)双螺杆挤出机挤出的聚合物通过单螺杆造粒机增加性能参数或添加相应原料以获得复合型TPU ;(7)造粒完成的TPU通过料粒输送管道进入脱水机进行脱水,然后通过料粒输送管道进入振动筛干燥,并进入包装机包装,包装完成后进入料仓。 A use of any preceding claim wherein a thermoplastic polyurethane elastomer TPU production apparatus granulation method, wherein: said A TPU granulation process comprising the steps of: (1) polyol , polyisocyanate and butanediol were injected into the corresponding polyol feed tank, the polyisocyanate tank and tank-butanediol; (2) the ratio of the raw material is set in the computer, with each liquid raw material tank metering member each servo speed control corresponding mass flow controllers control the flow of raw materials to control their output flow metering pump, thus changing the mix of different index; (3) the mass of the respective units of measurement are the three components of the meter flow parameters and mixing ratio parameters for testing, calibration and control groups in order to achieve regulate the flow of parts; three materials group (4) Measurement completed parts at a certain reaction temperature independent at least twelve consecutive reaction raw material successively station continuous mixing reactor; (5) a combination of a twin-screw extruder `good raw material is extruded through the water granulator; (6) twin-screw extruder of polymer through a single screw granulator increase the performance parameters or add the appropriate starting material to obtain a composite type TPU; (7) the completion of the TPU granulated pellets through the pipeline into the dewatered, dried and then into the shaker, and enter the packaging machine packing pellets through pipelines, packaging After completion of entering the silo.
Description  translated from Chinese

热塑性聚氨酯弹性体生产装置及方法技术领域[0001] 本发明涉及一种聚合物生产装置,尤其涉及一种热塑性聚氨酯弹性体(TPU)生产装置及方法。 TECHNICAL FIELD The apparatus and method of producing the thermoplastic polyurethane elastomer [0001] The present invention relates to a polymer production plant, in particular, relates to a thermoplastic polyurethane elastomer (TPU) production apparatus and method. 背景技术[0002] TPU是由低聚物多元醇软段与二异氰酸酯、扩链剂硬段构成的线性嵌段共聚物。 BACKGROUND [0002] TPU is a polyol oligomer soft segment and a diisocyanate, chain extender hard segment consisting of linear block copolymers. TTO是由二苯甲烷二异氰酸酯(MDI)或甲苯二异氰酸酯(TDI)等二异氰酸酯类分子和大分子多元醇(POLYOL)、低分子多元醇(扩链剂)共同在灌注机和双螺杆挤出机中连续完全反应聚合而成并经水中造粒的高分子材料。 TTO is a diphenyl methane diisocyanate (MDI) or toluene diisocyanate (TDI) and other diisocyanates and large molecule polyol (POLYOL), low molecular weight polyols (chain extender) together in perfusion and twin-screw extruder Machine completely continuous polymerization reaction by water and pelletized polymer materials. 它在分子组成上以重复氨基甲酸酯基团为特征,同时含有尿素基甲酸酯、缩二脲、及酯键、醚键等其它基团。 It on the molecular composition of a repetitive characterized carbamate groups, urea groups containing both urethane, biuret, and an ester bond, ether linkages, and other groups. 从分子结构上看,由刚性链段与柔性链段交替构成,其中刚性链段是由二异氰酸酯和扩链剂反应得到,柔性链段则由二异氰酸酯和大分子多元醇反应得到。 Molecular structure, made of rigid segments and soft segments alternate configuration, wherein the rigid segment is obtained from a diisocyanate and a chain extender reaction, the soft segment by diisocyanate and polyol molecules reacting. 它和其它热塑性塑料相似,室温下具有橡胶弹性和塑料特性,高温下会熔成粘流体,可由注塑机加工(如挤出、注射、压延等),无需混炼与硫化等后处理工艺,可节约能量,制品可回收再利用且其废弃后可自然分解,与一般泛用塑料(PVC)比较起来属于环保材料。 It is similar to other thermoplastics, having rubber elasticity at room temperature and plastic characteristics, it will melt into a high temperature fluid viscosity, by injection molding machine (such as extrusion, injection, calendering, etc.), without kneading and vulcanization and other post-treatment process, can energy saving, recyclable products and their abandoned after the natural decomposition, compared with the general pan with plastic (PVC) materials are environmentally friendly. [0003] TPU是加热可塑化、溶剂可溶解的聚氨酯弹性体,它具有各种优异的性能。 [0003] TPU is heat plasticization, solvent-soluble polyurethane elastomer, which has various excellent properties. 其具有优异的韧性,耐磨耗及撕裂性,良好的透气性质也极适合于化学品、油品容器。 Which has excellent toughness, abrasion and tear resistance, good permeability properties are also very suitable for the chemical, oil container. TPU应用范围广泛,用量持续增长,但由于聚合物本身的特殊性,原料的配比精确度、混合的均匀性以及生产过程中的温度控制都会影响TPU的产品的物理性能,从而产生质量波动,这种质量波动会给下游客户的使用带来不利影响。 TPU wide range of applications, the amount continues to grow, but because of the special nature of the polymer itself, the ratio of raw material accuracy, mixing uniformity and temperature control in the production process will affect the physical properties of the TPU products, resulting in fluctuations in the quality, Such fluctuations in the quality of downstream customers would adversely affect use. 对于TPU来说,下游客户主要是抽丝、拉膜、注塑,由于质量波动,会给下游客户带来生产不稳定、拉膜不均匀、抽丝易断、注塑物件强度不稳定等问题。 For TPU, the downstream customers are spinning, film, injection molding, due to the quality fluctuations downstream customers will bring unstable production, film uneven, spinning frangible, plastic objects intensity instability and other issues. 另外,现在许多产业需要复合型TPU,因此,TPU厂家需要生产改性TPU。 In addition, many industries now require complex TPU, therefore, TPU manufacturers need to produce modified TPU. [0004] 对于TPU的生产来说,传统TPU造粒一般分为两步,第一步首先将BDO (二羟基丁烷)、聚酯多元醇以及纯MDI ( 二苯甲烷二异氰酸酯)加热至一定温度,再按一定比例混合反应,然后通过托盘或者其他模具成型成块状。 [0004] For a TPU production, traditional TPU granulation is generally divided into two steps, the first step is to BDO (dihydroxy butane), polyester polyols and pure MDI (methylene diphenyl diisocyanate) is heated to a certain temperature, then a certain percentage of mixed reaction, and then molded into a lump by pallets or other molds. 第二步是经一定时间温度熟化后经破碎机破碎成小块状再通过挤出机造粒成型即可。 The second step is the curing temperature after a certain time after the crusher into small pieces and then granulated by an extrusion molding machine can be. 但是通过托盘或者其他模具成型成料块污染大,生产效率低,能耗高,环境污染严重,成本高。 But by the tray or other molding into a slug pollution, low productivity, high energy consumption and serious environmental pollution, high costs. 最佳的方法是一步法用双螺杆挤出机生产TPU。 The best way is to produce one-step extruder with a twin screw TPU. [0005] 对于一步法制得的TPU,基本上是属于一种嵌段线型聚合物,采用双螺杆挤出机连续合成TPU,其工艺步骤是由原料预备、计量输送、混合反应、挤出造粒四个部分组成。 [0005] For step method were TPU, basically it belongs to a block linear polymer, using a twin-screw extruder, continuous synthesis TPU, which process step by raw material preparation, metering conveyor, mixing reaction, extrusion made composed of four parts grain. 该工艺具有原料配比计量精确、混合均匀、反应温度均一及物料在机内停留时间均匀等特点。 The process has the raw material ratio measurement precision, mixing, reaction temperature homogeneity and the residence time of the material in the machine uniformity and other characteristics. 但工艺流程中,对原料水分的控制、计量的精度、输送、温度分布以及切粒技术都不可忽视。 But in the process, the raw water control, precision measurement, transmission, distribution and temperature pelletizing technology can not be ignored. 根据需要,通过配方的调整,可设计出具有合适性能指标的TPU产品。 If necessary, by adjusting the formulation can be designed TPU products having suitable performance index. 因此,在TPU生产过程中,原料成分的配比、混合的均匀性、反应温度的控制都是及其重要的部分,但是,现在的TPU—步造粒系统均存在原料手工配比计量不精确、混合不均匀、反应温度不可控制等问题,而且传统的二步造粒系统一方面由于需要两步制造从而存在加工工艺制备流程长、能耗高的问题,另一方面能耗高造成了环境污染严重、成本高的问题,因此,为了产出符合市场需求的TPU产品,急需开发出一种原料配比精确、混合均匀、反应温度可控且制备流程简单、成本低、能耗低、降低环境污染的TPU —步法造粒系统。 Therefore, in the TPU production process, ratio, mixing uniformity, control of the reaction temperature of the ingredients are and important part, but now TPU- step pelletizing systems are manual feed ratio measurement inaccuracies exist mixed uneven, the reaction temperature can not control and other issues, and the traditional two-step pelletizing system on the one hand due to the need for preparing a two-step manufacturing process so that there is a long process, the problem of high energy consumption, on the other hand, high energy consumption causes environmental pollution, high cost, and therefore, in order to meet market demand TPU output product, the urgent need to develop a precise ratio of raw materials, mixing, reaction temperature controlled and preparation process is simple, low cost, low energy consumption, lower Environmental pollution TPU - footwork granulation system. 发明内容[0006] 本发明的目的在于提供一种原料配比计量精确、混合均匀、反应温度可控且不使用托盘或其他模具、制备流程简单、成本低、能耗低、无污染的热塑性聚氨酯弹性体生产装置。 SUMMARY [0006] The object of the present invention is to provide an accurate measurement ratio of raw materials, mixing, reaction temperature controlled without the use of pallets or other mold fabrication process is simple, low cost, low energy consumption, pollution-free thermoplastic polyurethane elastomer production apparatus. [0007] —种热塑性聚氨酯弹性体生产装置,包括:双螺杆挤出机,与所述双螺杆挤出机后端连接的水中造粒机,与所述水中造粒机连接的脱水机,与所述脱水机连接的下部设有卸料口的振动筛,设置于所述振动筛下方的包装机,与所述包装机连接的料仓,其特征在于: 所述双螺杆挤出机前端直接连有三个液料罐,所述液料罐上部设置有控制原料供给量的原料计量部件,所述双螺杆挤出机的前部设置有可以使液料充分反应的至少十二个相互独立的原料连续反应工位,原料分别依次进入到所述的至少十二个相互独立的原料连续反应工位。 [0007] - a thermoplastic polyurethane elastomer production apparatus comprising: a twin-screw extruder, a twin-screw extruder with the back-end connectivity of the water granulator, granulating machine is connected to the water, dehydration machine, and the lower part of the dewatering machine is connected with a discharge port shaker, shaker set at the bottom of the packaging machine, connected to the packaging machine hopper, wherein: the front end of the twin-screw extruder directly Even with three liquid feed tank, the upper part of the liquid feed tank provided with a control quantity of raw material supply metering member, the front twin-screw extruder provided with a full response can make the liquid material at least twelve independent feed continuous reaction station, turn into the raw materials are at least twelve independent feed continuous reaction station. [0008] 优选的,所述三个液料罐为多元醇料罐、多异氰酸酯料罐和丁二醇料罐。 [0008] Preferably, the three liquid tank polyol feed tank, the polyisocyanate tank and butanediol tank. [0009] 优选的,所述三个液料罐的原料计量部件设置有计量泵,与所述计量泵相连并控制其流量的质量流量计,以及与所述质量流量计相连并控制其流量的伺服调速器;所述伺服调速器、质量流量计和计量泵由电脑自动控制。 [0009] Preferably, the three liquid raw material tank metering member provided with a metering pump, connected to the metering pump and control the flow of the mass flow meter, and connected with the mass flow meter and control the flow servo governor; the servo drives, mass flow meters and metering pump controlled by the computer automatically. [0010] 优选的,所述TPU造粒系统还包括与双螺杆挤出机中后段连接的单螺杆造粒机, 所述单螺杆造粒机设置有与其相连的粉体电子计量称。 [0010] Preferably, the TPU granulation system also includes a single-screw granulator with a twin-screw extruder section after connection, the single screw granulator set electronic metering powder has associated therewith said. [0011] 优选的,所述水中造粒机与所述脱水机以及所述包装机与所述料仓之间通过料粒输送管道相连接。 [0011] Preferably, the water between the granulator and the dryer and the packaging machine and the pellet hopper connected via pipeline. [0012] 一种利用上述热塑性聚氨酯弹性体生产装置进行造粒的TPU造粒方法,其包括以下步骤:[0013] 1、将多元醇、多异氰酸酯和丁二醇分别注入相应的多元醇料罐、多异氰酸酯料罐和丁二醇料罐;[0014] 2、在电脑中设置各原料的比例,利用每个液料罐的原料计量部件的各自伺服调速器控制相应的质量流量计控制原料的流量,从而控制各自计量泵的输出流量,从而改变不同的混合指数;[0015] 3、各自计量单位的质量流量计分别对三个组份流量参数及混合比参数进行检测、 校正以实现组份流量的调节和控制;[0016] 4、计量完成后的三份原料组份在一定反应温度下在相互独立的至少十二个原料连续反应工位中依次连续混合反应;[0017] 5、双螺杆挤出机对组合好的原料进行挤出后,经水中造粒机造粒;[0018] 6、双螺杆挤出机挤出的聚合物通过单螺杆造粒机增加性能参数或添加相应原料以获得复合型TPU ;[0019] 7、造粒完成的TPU通过料粒输送管道进入脱水机进行脱水,通过料粒输送管道进入振动箱干燥,并进入包装机包装,包装完成后进入料仓。 [0012] An advantage of the above-mentioned thermoplastic polyurethane elastomer production means TPU granulation granulation method, comprising the steps of: [0013] 1, the polyol, isocyanate and butanediol were injected into the corresponding polyol feed tank , the polyisocyanate tank and butanediol tank; [0014] 2, set the raw materials in the computer ratio, the use of each respective servo governor liquid raw material tank metering member control corresponding mass flow control of raw materials flow, so as to control their output flow metering pump, thereby changing the mixing of different indices; [0015] 3, the mass of the respective units of measurement are the three components of the meter flow parameters and mixing ratio parameters for testing, calibration to achieve group regulation and control parts of the flow; [0016] 4, measured after completion of the three group of materials under certain parts of the reaction temperature in at least twelve independent continuous reactor feed station successively continuous mixing reactor; [0017] 5, After the twin-screw extruder combination of good raw material for extrusion, granulator by water; [0018] 6, a twin-screw extruder of the polymer to increase performance parameters or add a single screw granulation machine accordingly raw materials for compound TPU; [0019] 7, granulated finished TPU pellets by pipeline into the dewatered, pellets through the pipeline into the vibration box dried and packed into the machine, the wrapping is done after entering the silo . [0020] 本发明的有益效果有:[0021 ] 1、由于采用双螺杆挤出机一步造粒,降低了成本,减少了能耗。 [0020] The beneficial effects of the present invention are: [0021] 1, the use of a twin-screw extruder granulation step, reduce costs, reduce energy consumption. [0022] 2、利用电脑控制,通过每个液料罐的各自的原料计量部件的质量流量计分别对三个组份流量参数及混合比参数进行检测、校正以实现组份流量的调节和控制,提高了原料配比的计量精确度。 [0022] 2, the use of computer-controlled, the three components of the meter respectively the flow parameters and the parameters detected by the mixing ratio of the mass of each raw material tank of each liquid metering member, in order to achieve the correct flow component of the regulation and control , improve the measurement accuracy ratio of raw materials. [0023] 3、至少十二个原料连续反应工位的设置,增加了原料的反应时间,可以使原料充分混合反应。 [0023] 3, at least twelve consecutive reaction materials set up station, increasing the response time of the feedstock can be the raw material mixed reactions. [0024] 4、不使用模具、托盘造粒不仅减少了环境污染,而且减少了TPU造粒机的占地面积,提高了工厂的整体使用率,且降低了工人的劳动强度,能为工厂带来更大的经济效益。 [0024] 4, do not use molds, tray granulated not only reduce environmental pollution, and reduce the TPU granulator footprint, improve the overall utilization of the plant, and reduce the labor intensity, energy for the plant band to greater economic benefits. [0025] 5、通过单螺杆配合双螺杆挤出机,提高了TPU的性能稳定性并且更容易加工复合性TPU。 [0025] 5, through a single-screw extruder with a twin screw, to improve the performance of stability and easier processing TPU MULTIPLE TPU. 附图说明[0026] 图1为本发明的工艺流程示意图;[0027] 图2为本发明的另一实施例的工艺流程图;[0028] 图3为本发明液料罐中原料计量部件放大示意图;[0029] 如图中坐标系所示,X轴正方向为上方或上部,Y轴正方向为右方或右部,Z轴正方向为前方或前部,同样的,X轴、Y轴和Z轴的反方向对应的为下方或下部、左方或左部和后方或后部。 BRIEF DESCRIPTION Flow chart [0026] FIG. 1 of the present invention; a process flow diagram of another embodiment of [0027] FIG. 2 embodiment of the present invention; [0028] FIG. 3 of the present invention liquid raw material tank in the metering member enlarge schematic; [0029] As shown in FIG coordinates, X-axis positive direction is upward or upper, Y-axis positive direction to the right or right, Z-axis positive direction for the front or the front of the same, X axis, Y in the opposite direction and Z-axis corresponds to the bottom or the lower, left or left and rear or rear. 具体实施方式[0030] 热塑性聚氨酯弹性体生产装置,包括:双螺杆挤出机1,设置在双螺杆挤出机I后端部并通过料粒输送管道100与双螺杆挤出机I连接的水中造粒机2,与水中造粒机2连接的脱水机3,与脱水机3通过料粒输送管道100连接的下部设有卸料口的振动筛4,设置在振动筛4下方的包装机5,与包装机5通过料粒输送管道100连接的料仓6,双螺杆挤出机I前端直接连有三个液料罐71、72、73,所述液料罐上部设置有控制原料反应量的原料计量部件70,双螺杆挤出机I的前部设置有可以使液料充分反应的相互独立的至少十二个原料连续反应工位10,原料分别依次进入到至少十二个原料连续反应工位10。 DETAILED DESCRIPTION [0030] The thermoplastic polyurethane elastomer production apparatus comprising: a twin-screw extruder 1, is set in a twin-screw extruder I water the rear end and by pellet delivery pipe 100 and a twin-screw extruder I connect granulating machine 2, and the water granulator dryer 3 2 is connected with the dryer 3 pellets transported through the lower connection pipe 100 is provided with a discharge outlet of the vibrating screen 4 disposed below the shaker 4 of the packaging machine 5 , and the packaging machine 5 pellets piped 100 connected silo 6, a twin-screw extruder I directly connected the front three liquid material tank 71, the liquid feed tank upper portion provided with a control quantity of raw material response raw metering member 70, the front of the twin-screw extruder I can make the liquid material provided adequate response independent of each other at least twelve consecutive reaction raw station 10, respectively, turn into the raw material to feed at least twelve consecutive reaction Workers Bit 10. [0031] 优选的,三个液料罐为多元醇料罐71、多异氰酸酯料罐72和丁二醇料罐73。 [0031] Preferably, the three liquid tank is a polyol tank 71, the polyisocyanate tank 72 and tank 73 butanediol. [0032] 优选的,所述三个液料罐的原料计量部件70设置有计量泵701,与计量泵701相连并控制其流量的质量流量计702,以及与质量流量计702相连并控制其流量的伺服调速器703 ;伺服调速器701、质量流量计702、计量泵703由电脑自动控制。 [0032] Preferably, the three liquid raw material tank 70 is provided with a metering member metering pump 701, the pump 701 is connected with the metering and controlling the flow of the mass flow meter 702, and is connected with the mass flow meter 702 and the flow control The servo speed 703; 701 servo speed, mass flow meter 702, a metering pump 703 by the computer control. [0033] 优选的,热塑性聚氨酯弹性体生产装置还包括与双螺杆挤出机I中后段连接的单螺杆造粒机8,单螺杆造粒机8设置有与其相连的粉体电子计量称80。 [0033] Preferably, the thermoplastic polyurethane elastomer production unit also includes twin screw extruder single screw granulator machine I, section 8 of the connection, single screw granulator 8 is provided electronic metering powders have associated therewith, said 80 . [0034] 优选的,水中造粒机2与脱水机3,脱水机3与振动筛4,包装机5与料仓6之间通过料粒输送管道100相连接。 [0034] Preferably, the water granulator 2 and 3 dehydration, dehydration 3 and 4 shaker, packing machine silos between 5 and 6 by pellet delivery pipe 100 is connected. [0035] 利用上述热塑性聚氨酯弹性体生产装置的TPU造粒方法,其包括以下步骤:[0036] 1、将多元醇、多异氰酸酯和丁二醇分别注入对应的多元醇料罐71、多异氰酸酯料罐72和丁二醇料罐73。 TPU granulation process [0035] With the above thermoplastic polyurethane elastomer plant, comprising the steps of: [0036] 1, the polyol, isocyanate and butanediol were injected into the corresponding polyol feed tank 71, polyisocyanate material tank 72 and butanediol tank 73. [0037] 2、在电脑中设置各原料的比例,优选的,多元醇、多异氰酸酯和丁二醇各组分的用量分别为100份、35-50份和8-13份(每份的单位相同),例如三原料用量份比可以设置为100: 35: 8,利用每个液料罐的原料计量部件70的各自伺服调速器701控制相应的质量流量计702控制原料的流量,从而控制各自计量泵703的输出流量,从而改变混合指数至在电脑中设定的比例,达到多元醇、多异氰酸酯和丁二醇用量份比例为100: 35: 8。 [0037] 2. Set the raw materials in the computer ratio, preferably, polyols, polyisocyanates and amount of the components butanediol were 100 parts, 35-50 parts and 8-13 parts (each unit the same), the amount of raw materials such as three parts ratio can be set to 100: 35: 8, with each liquid raw material tank metering member 70 each servo speed control 701 702 corresponding mass flow control flow of raw materials to control each metering pump output flow 703, thereby changing the mixing ratio of the index to set the computer to achieve the polyol, isocyanate and butanediol amount composition ratio of 100: 35: 8. [0038] 3、各自计量单位的质量流量计702分别对三个组份流量参数及混合比参数进行检测、校正以实现组份流量的调节和控制,以达到用量精准的目的。 [0038] 3, the quality of each unit of measure 702 meter three components separately and mixing ratio parameters of flow parameters detection, correction in order to achieve flow regulation and control components in order to achieve the purpose of accurate dosage. [0039] 在另一个实施例中也可以在电脑中将多元醇、多异氰酸酯和丁二醇比例设置为100: 50: 13,以得到其他性能的TPU,同样的,利用每个液料罐的原料计量部件70的各自伺服调速器701控制相应的质量流量计702控制原料的流量,从而控制各自计量泵703的输出流量,从而改变混合指数至在电脑中设定的比例,达到多元醇、多异氰酸酯和丁二醇用量比例为100: 50: 13。 [0039] In another embodiment, the computer will also be a polyol, a polyisocyanate and butanediol ratio to 100: 50: TPU 13, to obtain other properties, the same, with each liquid feed tank raw metering member 701 each servo speed control 70 of the corresponding mass flow of 702 control the flow of raw materials to control their output flow metering pump 703, thereby changing the mixing ratio of the index to set the computer to achieve a polyol, Multi-diisocyanate and butanediol different dosage ratio of 100: 50: 13. [0040] 4、计量完成后的三份原料组份在一定反应温度下在至少十二个原料连续反应工位10中混合反应。 [0040] 4, three metered raw materials group finished parts at a certain reaction temperature of the mixed reaction of at least twelve consecutive raw reaction station 10. [0041] 5、双螺杆挤出机I对组合好的原料进行挤出后,经水中造粒机2造粒。 [0041] 5, a twin-screw extruder I for a combination of good raw material extruded by the water granulator 2 granulation. [0042] 6、双螺杆挤出机I挤出的聚合物通过单螺杆造粒机8增加性能参数或添加相应原料以获得复合型TPU。 [0042] 6, a twin-screw extruder I extruded polymer through a single screw granulator 8 increase performance parameters or add the appropriate starting material to obtain a composite type TPU. [0043] 7、造粒完成的TPU通过料粒输送管道进入脱水机3进行脱水,通过料粒输送管道进入振动筛4干燥,并进入包装机5包装,包装完成后进入料仓6。 [0043] 7, granulated finished TPU pellets by pipeline into the dehydrator 3 dehydrated pellets through the pipeline into the shaker dried and packed into the packaging machine 5, 6 after completion of packaging into the silo. [0044] 在生产过程中,通过将原料置于双螺杆挤出机I中进行高温反应聚合,双螺杆挤出机I相对运动的两个螺杆具有高剪切速度梯度可使物料良好混合反应均匀。 [0044] In the production process, the raw material by high temperature into a twin-screw extruder I, a polymerization reaction, two screws I twin-screw extruder having a high shear relative movement velocity gradient material can uniformly well mixed reaction . 双螺杆挤出机I的前端设有至少十二个原料连续反应工位10,计量完成的原料在一定温度下在至少十二个原料连续反应工位10中充分聚合反应。 The front end of a twin-screw extruder provided with at least twelve I feed a continuous reaction station 10, the measurement is completed materials at a temperature of at least twelve consecutive raw reaction station 10 in full polymerization. [0045] 作为一种优选,双螺杆挤出机I连接的液料罐71、72、73处还设有原料计量部件70,该原料计量部件70包括伺服调速器701、质量流量计702和计量泵703。 [0045] As a preferred liquid tank 71, a twin-screw extruder at I connected metering member 70 is also a raw material, the raw material metering assembly 70 includes a servo converter 701, a mass flow meter 702 and metering pump 703. 伺服调速器701、质量流量计702和计量泵703的工作由计算机控制,通过在电脑中设置多元醇、多异氰酸酯和丁二醇的比例,利用每个料灌的原料计量部件70的伺服调速器701控制各个计量部件的质量流量计702的流量,通过质量流量计702控制各自相应的计量泵703的输出流量, 从而改变不同的混合指数,制造出不同性能、不同用处的TPU。 701 servo speed, mass flow metering pump 702 and 703 controlled by the computer, the computer by providing a polyol, the ratio of the polyisocyanate and butanediol, with each raw material filling servo transfer metering member 70 701 speed control quality of each of the metering member 702 flow meter, mass flow meter 702 is controlled by a respective output flow metering pump 703, thereby changing the mixing of different indices, producing different properties in different useful TPU. [0046] 各自原料计量单位70的质量流量计702分别对多元醇、多异氰酸酯和丁二醇三个组份流量参数及混合比参数进行检测、校正以实现组份流量的调节和控制。 [0046] The respective raw material mass flow measurement units 70 702 respectively, polyol, isocyanate and butanediol three components flow parameters and mixing ratio parameters for testing, calibration and control in order to achieve the adjustment component flow. 从而实现并控制双螺杆挤出机的物料的精确配比。 And precise ratio control to achieve the twin-screw extruder material. 优选的,其控制方式分为可开环控制和闭环控制两种方式。 Preferably, the control mode can be divided into open-loop control and closed-loop control in two ways. [0047] 作为一种优选,该TPU造粒系统还设置有单螺杆造粒机8,该单螺杆造粒机8前端设置有粉体电子计量称80,当原料在双螺杆挤出机I中的至少十二个原料连续反应工位中混合反应后,并通过双螺杆挤出机挤出后,可通过在单螺杆造粒机中反应以提闻广品性能, 或通过直接添加复合材料以达到制造复合TPU的需要。 [0047] As a preferred this TPU granulation system is also provided with a single screw granulator 8, the front end of a single-screw granulator 8 is provided with an electronic metering said powder 80, when the raw material in a twin-screw extruder I, at least twelve stations in a continuous reactor feed mixed reaction, and by a twin-screw extruder, the can by a single screw granulator reacted to mention the smell broad product performance, or by adding a direct composite materials the need to create a composite TPU reach. [0048] 由于采用双螺杆挤出机一步造粒,降低了成本,减少了能耗。 [0048] As a result of the twin-screw extruder granulation step, reduce costs, reduce energy consumption. 各自计量单位的质量流量计702分别对三个组份流量参数及混合比参数进行检测、校正以实现组份流量的调节和控制,提高了原料配比的计量精确度。 Mass flow meter 702 respective units of measurement are the three components of the flow parameters and mixing ratio parameters for testing, calibration and control groups in order to achieve the regulation of the flow of parts, improve the measurement accuracy of the ratio of raw materials. 双螺杆挤出机I前端设置至少十二个原料连续反应工位10,可以使原料在双螺杆挤出机I中充分反应,以得到性能优良的TPU。 Twin-screw extruder I feed tip provided with at least twelve consecutive reaction station 10, the raw material can be sufficiently reacted in a twin-screw extruder I, in order to obtain good performance TPU. 不使用模具、托盘造粒不仅减少了环境污染,而且减少了TPU造粒机的占地面积,提高了工厂的整体使用率,且降低了工人的劳动强度,能为工厂带来更大的经济效益。 Do not use molds, tray granulated not only reduce environmental pollution, but also reduces the footprint TPU granulator, improve the overall utilization of the plant, and reduce the labor intensity, can bring greater economic factory benefits. 通过单螺杆造粒机8配合双螺杆挤出机1,提高了TPU的性能稳定性并且更容易加工复合性TPU。 8 by a single screw granulator with a twin-screw extruder 1, to improve the performance and stability of the TPU's easier to process complex of TPU. [0049] 本领域技术人员可以根据本发明公开的内容和所掌握的本领域技术对本发明内容做出替换或变型,但是这些替换或变型都不应视为脱离本发明构思的,这些替换或变型均在本发明要求保护的权利范围内。 [0049] skilled in the art can be made according to the present disclosure and disposal of those skilled in the contents of this invention is to replace or variations, but these substitutions or modifications shall not be considered as departing from the inventive concept, such alterations or modifications They are within the scope of the claimed invention as claimed.

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Classifications
International ClassificationB29C47/38, B29B9/06, C08G18/08, B29C47/10, B29C47/92
Cooperative ClassificationB29C47/0011, B29C47/366
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