PVC production process by calcium carbide method and calcium carbide production present status in domestic were narrated. Key attentive points in PVC production were emphatically pointed.
叙述了电石法pvc的生产工艺及目前国内电石生产的现状，着重指出电石法生产pvc工艺中需要重视的要点。
In the production of PVC by calcium carbide method, tail gas contained VCM could be released from the rectifying process and compression-type condensation recovery process.
在电石法pvc生产装置精馏工序和压缩冷凝回收工序排放的尾气中含有VCM。
Some new process, new units and new materials used broadly in domestic production enterprises of calcium carbide PVC were introduced.
介绍了国内电石法pvc生产企业近年来广泛采用的一些新工艺、新设备和新材料。
The new technology and new process instead of traditional technology and equipment in PVC production by calcium carbide method were introduced.
介绍了在电石法PVC生产中利用新技术与新工艺改造传统技术和设备的情况。
The traditional dry ethylene process, calcium carbide broken generally adopt two-stage jaw broken way to finish the crushing grain size, calcium carbide is larger.
传统的干法乙烯工艺中，电石的破碎一般采用两级颚破的方式完成，电石的破碎粒度比较大。
In the production of PVC resin by calcium carbide-acetylene process, how to treat the large amount of carbide slag slurry is a matter of great urgency.
在采用电石-乙炔工艺生产pvc树脂的过程中，如何处理所产生的大量电石渣是企业迫在眉睫的问题。
In order to coordinate the smooth implementation of dry acetylene process, it is necessary to traditional wet process calcium carbide crushing process improvement.
为了配合干法乙炔工艺的顺利实施，必须对传统的湿法工艺中电石的破碎工艺进行改进。
Calcium carbide residue was a side-product produced in the process of acetylene with calcium carbide.
电石渣是电石溶解生产乙炔过程中的副产物，主要用于烟气脱硫和水泥制造。
The sulfur removal process of calcium carbide waste water is a chemical reaction between sulfur dioxide and sodium hydroxide.
电石废水脱硫过程是二氧化硫与氢氧化钠发生化学反应生成亚硫酸钠。
This paper mainly describes the industrial production line using calcium carbide dreg dosing and new technology "dry grinding and dry calcining" for dry production process of cement clinker.
本文主要介绍了电石渣配料及采用“干磨干烧”新工艺生产新型干法水泥熟料的工业化生产线。
This article analyzed the reason why furnace surface heat loss was increased in sealed calcium carbide furnace. In view of this situation, we modified process control datas and updated equipment.
分析了密闭电石炉炉面热损增加的原因，针对分析情况对原有工艺控制参数及设备进行了变更和改造。
The invention provides a closed type calcium carbide furnace charging nozzle and a process for producing the same.
本发明是一种密闭式电石炉加料嘴及制造工艺。
The invention provides a closed type calcium carbide furnace charging nozzle and a process for producing the same.
本发明是一种密闭式电石炉加料嘴及制造工艺。
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