The utility model relates to an underwater granulator granulating template, in particular to a vacuum heat insulation cover plate for granulating template. The vacuum heat insulation cover plate provided by the utility model is arranged on the surface of the inner ring and outer ring of the granulation formwork, which can block the heat transfer, convection and radiation of these parts, improve the heat insulation performance of these parts, and reduce the temperature drop produced by the cooling water in the inner ring and outer ring areas to the edge of the granulation belt of the formwork. The temperature difference between the edge of the template and the center part is reduced, and the grain cutting quality is improved. The utility model relates to a vacuum heat insulation cover plate for granulating formwork, which comprises a lower cover plate, an intermediate support grid plate, an upper cover plate and a high temperature resistant heat insulation coating. There are several separate vacuum chambers in the main area of the vacuum insulation cover plate, and the high temperature insulation coating on the inner side of the lower cover plate, which prevents the heat loss from convection, conduction and radiation.
【技术实现步骤摘要】
一种造粒模板用真空隔热盖板
本专利技术涉及一种水下切粒机造粒模板,特别涉及一种造粒模板用真空隔热盖板。
技术介绍
水下切粒机是熔体被挤出造粒模板造粒带表面与冷却水接触凝固由切粒刀切粒的塑料切粒设备。熔融状态下的物料,在挤压机螺杆或熔融泵的挤压下,进入到被加热的造粒模板进料腔内,再被挤压到出料模孔,挤出造粒模板造粒带表面,遇到冷却水喷淋,熔融物料迅速凝固,在间隔布置的切刀空隙中,物料在两个切粒刀一定转角的时差下,挤成预定长度的圆柱体,被旋转的切粒刀刃切割掉,形成规则的颗粒。在造粒模板以内,物料粘度要低,流动性要好,其被挤出造粒模板造粒带表面后,遇冷却水后凝固,便于被切粒成型。切粒机造粒室内的冷却水喷淋到模板表面后会使模板表面的温度降低,模板模孔内一定深度的物料粘度提高,通过模孔的阻力增大,出料速度降低,严重时,物料堵住出料模孔,停止流动,导致切粒大小不均匀,影响开孔率,这些都是切粒作业中需要避免的。因此,如果模板造粒带的温度不均匀一致,会影响到所有模孔的物料的挤出和切粒的一致。进一步分析可知,模板造粒带表面温度不均匀的现象,除了因内部加热通道有结焦积碳堵塞外,与模板 ...
【技术保护点】
1.一种造粒模板用真空隔热盖板,包括下盖板(1),中间支撑栅格板(2),上盖板(3),耐高温隔热涂层(4),其特征在于支撑栅格板(2)置于下盖板(1)和上盖板(3)之间,下盖板(1)与上盖板(3)及中间栅格板(2)围成的封闭空间为真空腔,耐高温隔热涂层(4)涂于下盖板(1)的外侧。
【技术特征摘要】
1.一种造粒模板用真空隔热盖板,包括下盖板(1),中间支撑栅格板(2),上盖板(3),耐高温隔热涂层(4),其特征在于支撑栅格板(2)置于下盖板(1)和上盖板(3)之间,下盖板(1)与上盖板(3)及中间栅格板(2)围成的封闭空间为真空腔,耐高温隔热涂层(4)涂于下盖板(1)的外侧。2.根据权利要求1所述的一种造粒模板用真空隔热盖板,其特征在于中间支撑栅格板(2)的内外缘支撑圈(5)和支撑连接筋(7)与螺钉安装孔的环形支撑节...
【专利技术属性】
技术研发人员:张宛力,孙忠强,寇晓春,
申请(专利权)人:大连市锐耐特刀具有限公司,
类型:新型
国别省市:辽宁,21
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