网站公告:

南京科尔克挤出装备有限公司专业生产双螺杆造粒机、双螺杆挤出机、塑料挤出造粒机、双螺杆色母粒造粒机、双螺杆PET回收造粒机、填充母粒造粒机、PVC电缆料造粒机、改性塑料造粒机、挤出机螺杆、挤出机机筒等设备。销售热线:15250985310 孙华   QQ2504913764

服务热线:15250985310
新闻资讯
当前位置:首页 >> 新闻资讯
双螺杆挤出造粒机故障排除——螺杆,加热器,挤出机料筒
添加时间:2020-05-21 11:45:56 浏览次数:17

双螺杆挤出造粒机故障排除——螺杆,加热器,挤出机料筒

Trouble故障

Possible cause导致原因

Action解决措施

Wear/metal abrasion on screws or barrels

螺杆或筒体磨损

·Running-in wear during commissioning

运转过程中的磨损

·Normal phenomenon

正常现象

·Check magnetic fines in the screen. In case of running-in wear, the amount of metallic fines will constantly decrease

检测过滤网前的金属碎屑,如果是试运转造成的磨损,金属碎屑的数量将会不断减少

·Distortion of processing section due to irregular heating/cooling

无规律的加热或冷却造成加工段的变形

·Make sure that heater shells to the barrels. Check function of the(electr.) heating elements. If necessary, check the cooling circuit of the barrels for free passage.

检测加热电路和加热器是否完好,如有必要,检查冷却回路是否通畅

·Shorted or extend the cooling pulse, as applicable

适当的减小或增大冷却水的流量

·Insufficient plasticizing performance of screw

螺杆塑化效率低

·Rise temperature level for processing section. Reinforce screw in the plasticizing zone. If necessary, confer with KTE processing engineers.

升高温度或加强塑化段的螺杆组合,必要时请联系惠州星洲塑机公司的工艺工程师

·High percentage of pellets with screw configuration for powders

粉末物料中的颗粒比例太大,螺杆组合不合适

·Increase the screw back pressure in the plasticizing zone. Kneading block arrangement to be matched to requirements. Rise temperature level

增加螺杆塑化段的被压,根据需要排列啮合元件,并相应的升高温度

·Abrasive additives/components contained in the product

物料中含有银磨损造成的参杂成分

 

·Use suitable screws and barrel sections with wear protection. Optimize screw configuration. For each individual case, confer with KTE processing engineers.

使用耐磨的螺杆和筒体,优化螺杆组合。

对于不同的情况,请咨询惠州星洲塑机公司的工艺工艺工程师

Wear/metal abrasion on screws or barrels

螺杆和筒体磨损

·Screw configuration in general not suitable for the specific process or polymer

螺杆组合不合适

·Wrong fitting of screw elements

螺纹元件安装错误

·For each individual case, confer with KTE processing engineer.

对于不同的情况请咨询惠州星洲塑机公司的工艺工程师

Problems during intake of components

喂料过程中出现的问题

·Bulk density is too low

容积密度太低

·Increase bulk density

增大容积密度

·Speed of the KTE is too low

KTE设备转速太低

·Increase speed of KTE

增大转速

·Throughput rate is too high

挤出速度太高

·Reduce throughput rate

减小挤出速度

·Backflow of gases

气体逆流

·Adapt screw configuration

调整螺杆组合

·Fluidization in the feed zone

在喂料区液化

·Reduce gas blanketing

减少气模

·Sticking of components in the feed barrel

喂料筒粘料

·Provide cooling for feed barrel

对喂料筒体进行冷却

·Bridging of components in the hopper

料斗中发生架桥现象

·Provide a vibrator on the hopper

在料斗里面装上搅拌器

Screw shafts"scrape" the barrel bores

螺杆摩擦筒体内孔

·Processing section not perfectly aligned

筒体对中不太好

·Align processing section while "cold"

等加工段冷却后再对筒体重新对中

Extreme deflagration in processing section

加工段产生爆燃

·Moist powder is processed

加工太潮湿的粉料

·Use dry powder

使用干的粉料

Processing section in warped

加工段弯曲变形

·Irregular heating/cooling

不规则的加热或冷却

·Check heating/cooling system

检查加热或冷却系统

Vibration at processing section

加工段振动

·Unfavorable speed range

速度范围不合适

·Change speed slightly

轻微调整速度

·Throughput too low

产量太低

·Increase throughput

增加产量

Loud noise in the processing section, for example knocks, rattling, creaking

噪音较大

·Machine running without product(no lubrication; dry running)

设备空转(未润滑:干转)

·Feed in product or switch the machine off in good time

喂入物料或及时切断开关

·Too high percentage of pellets for a "powder screw"

粉料物料中的颗粒太多

·Reduce percentage of pellets. Rise temperature level before and in the plasticizing zone by external heating. Increase back pressure of kneading block in the plasticizing zone

减小颗粒比例:适当升高温度:增加塑化段啮合快的背压

·Screw set elements not correctly fitted on the shaft

螺杆元件安装不正确

·Check and correct, if necessary

检查并矫正

·Coupling between screw shafts and output shafts of gearbox is loose

花键套松动

·Offset of screws

螺杆偏移

·Check screw shaft coupling. Retighten union nuts the screw shafts fit close to the gear shafts

检查花键套,使得螺杆和转动箱输出轴之间紧密连接

Barrel temperature varies considerable around the set value 筒体温度变化较大

·Temperature controller: cooling or heating pulse duration not optimized

没有设好温度控制器的脉冲持续时间

·Correct controller or controller program accordingly

纠正控制器或控制程序

·Polymer contains moisture, thus producing pulsations, thus producing pulsations in the plasticizing zone

聚合物有水分,塑化不稳定

·Check polymer moisture and reduce it, if necessary. In exceptional case, reconsider and change screw configuration

检测并减小湿气,特殊情况下也可考虑改变螺杆组合

·Vent system partly does not function

排气系统不好

·Check vent port

检查排气口

 

·Bulk density of polymer varies strongly or too much air contained in the polymer powder

聚合物粉末中含有太多空去或容积密度变化较大

·Reduce bulk density variation. Check venting of polymer feed system(venting lines and/or filter equipment). Adjust screw configuration. For this, please confer with KTE

减小容积密度的变化,检查喂料系统的排气,如有需要调整螺杆组合,请与惠州星洲塑机公司协商

·Feed product is wet

物料较潮湿

 

·Determine the degree of moisture. Take measures to reduce moisture

检测湿度,减少含水量

·"Fluidization" of feed product

喂料段液化

·If necessary, reduce nitrogen blanketing and pressure. Optimize venting for polymer feed line. Provide more intensive cooling for feed barrel. In exceptional cases, optimize screw or vent system

较小压力:改善喂料系统的排气状况:加强喂料筒体的冷却:特殊情况下,也可以优化螺杆组合或排气系统

·Bridging in the feed system

喂料系统发生架桥

·Bridging to be eliminated by suitable measures

用适当的方法消除架桥

Polymer leakage at barrel section joints

筒体连接处漏料

·Tightening torque for bolts too low/initial stress diminished due to long-term temperature influence and load changes

螺栓的预紧力不够或因长期的加热和负载的变化所引起的应力减小

·Clean barrel faces and remove any polymer adhered. Place new bolts. After first heating-up, these bolts are to be retightened. Retightening of bolts without removal of polymer will not solve the problem.

清洗筒体端面,更换新的螺栓,在第一次加热后,需要重新拧紧螺栓。如果没有清除所粘的物料。只拧紧螺栓不能解决问题

·Barrel faces damaged or uneven.

筒体端面有损坏或不平滑

·Regrind the barrel faces on a grinding machine

在磨床上重新磨平筒体端面

Degassing of volatile matter in polymer not satisfactory 不能很好的排除聚合体中的挥发物

·No vacuum pump connected

未连接真空泵

·Connect vacuum pump

连接真空泵

·Insufficient vacuum due to: Leakage in vacuum system

真空不够:真空系统有泄漏

·Localize leakage with a leakage detector and make tight

用泄漏探测器查找泄漏部位并进行紧密处理

·Clogging in suction pipe

进气管堵塞

·Clean suction pipe

清理进气管

·Defect of vacuum pump

真空泵故障

·Check pump suction line

检查真空泵抽气管路

·Repair any defect found

维修有缺陷的管道

·Temperature of polymer melt is too low

熔体温度太低

·Increase melt temperature

升高熔体温度

·Polymer throughput rate is too low

挤出速度太快

·Reduce throughput rate gradually and check result

渐渐减小挤出速度,并检测结果

·Screw configuration is not suitable

螺杆组合合不合适

·If necessary, change screw

调整螺杆组合

Vent barrel open to atmosphere is not safe. Product comes up

排气筒直接通向空气是不安全的,物料从开口漏出

·Throughput rate of KTE too high 喂料量太高

·Reduce throughput rate

降低喂料量

·Pressure built-up too high downstream

挤出压力太高

·Reduce throughput rate or adapt screw configuration accordingly. If necessary, a backpressure calculation is to be made beforehand 根据情况降低产量或调整螺杆组合,必要时请先计算一下背压

·Unsuitable vent insert

排气口接口不合适

·Mount a suitable vent insert; if necessary, confer with KTE

安装合适的排气接头,必要时请咨询惠州星洲塑机公司

·Insufficient cleaning routine

日常清理工作不够

·Optimize cleaning routine

保证日常清理工作

Electric heater. The indicated barrel temperature level, which first has been correctly maintained, drops

筒体温度开始保持正常,然后突然降低

·Heater shells/heater or fuses defective

加热器或保险丝故障

·Check electric function of heater shells/heater. Check  fuses. Check  heater shells for good contact with barrel. Replace defective heater shells.

检查加热器、保险丝。检查加热器和筒体的连接,换掉损坏了的加热片

·Controller defective

控制器故障

·Check controller and readjust or replace, as necessary

检查控制器并进行调节,必要时更换

·Faulty contact between thermocouple and barrel

热电偶和筒体之间的接触

·Check thermocouple for good contact

检查热电偶,使之与筒体接触良好

·Valve of barrel cooling system does not close and continuous cooling water flow is possible. Valve is dirty or valve seat is defective

筒体冷却系统的阀门未关闭:阀门有赃物

·Check solenoid valve; clean or replace valve as necessary. If necessary, also check valves of the adjacent barrel

检查阀门“按需要清理或更换阀门。必要时也要检查旁边筒体上的阀门

·Pilot valve defective

控制阀故障

·Check pilot valve

 

检查控制阀

·Increased polymer throughput rate and thus insufficient input of mechanical energy

聚合物的吞吐量增加,而相应的机械强度不够

·Screw is too weak for this throughput, especially in the plasticizing zone

相对这样的吞吐量,螺杆强度不够,油漆是塑化段的强度



双螺杆造粒机,双螺杆挤出机,南京双螺杆造粒机,填充母粒造粒机,PVC造粒机,消泡母粒造粒机,南京塑料挤出机,

南京科尔克挤出装备有限公司   

  http://www.kerke1688.com    


服务热线

15250985310

功能和特性

价格和优惠

获取内部资料

微信服务号