除砂

采用FX2N-128MR可编程控制器，实现了自来水生产工艺中排泥除砂自动控制系统，介绍了自来水厂沉沙池、反应池和沉淀池的方案设计，硬件组成及软件实现。

This paper achieved the automatic control of mud-and-sand elimination in waterworks through the use of FX2N-128MR PLC , and introduced project design , hardware composing of the water plant .

高压天然气集输管道除砂试验研究

Experimental Investigation on Sand Separation in High Pressure Natural Gas Pipe

原油除砂用离心旋流器的性能研究

The Performance Study of Centrifugal Cyclone for Removing Sand from Crude Oil

回转式石灰乳除砂机的设计与使用

Design and Application of Rotary Classifier for Milk of Lime

沉砂池除砂效果测定与评价

Measuring and Evaluation on the Effectiveness of Grit Chamber in Grit Removal

原油集输系统除砂工艺

Sand Removal Process of Crude Oil Gather and Transfer System

喷砂角度设计良好、除砂或氧化模快速。

Well-designed sand blasting angles allow fast Sand removing and film oxidizing .

路三站密闭除砂工艺设计

Design of Close Sand-Removing Technology of Lu No 3 Station

除砂工艺在拜尔法氧化铝生产中的应用

Application of Desanding Process in the Bayer Process Alumina Plant

合理选配水力旋流器是获得最佳除砂、除泥效果的关键。

Choosing a rational cyclone is critical to acquire the best separation effect .

油井产液除砂旋流器试验研究

Test on cyclone for removing sand from well fluid

旋流除砂技术在海上采油平台的应用研究

The Application of Centrifugal Desanding Technology in Offshore Platform

反流筛系我国独创的石棉矿石分选设备，它不仅在石棉选矿厂用于粗选、精选除尘、除砂，而且还可用于石棉制品厂原料加工的净化除砂、尘。

The Anti-flow screen equipment is used for concentrating asbestos in our country .

一种新型的密闭容器除砂技术

A New Type Degritting Technique for Closed Container

水力旋流器在油田地面集输系统原油除砂中的应用

Application of Hydrocyclones on Desanding of Crude Oil in the Transportation System of Oil Fields

油气集输系统除砂工艺技术

Sand Removal Technology in Oil-Gas Gathering-Transferring System

因此，开展含砂原油的除砂工艺技术研究具有重要意义。

Therefore , it is necessary to carry out sand laden crude oil desanding technology research .

含砂原油的除砂工艺研究

Sand Removal Technology for Sandy Crude

验证了本文除砂旋流器油砂分离特性可以达到理论上的要求。

Validation of the cyclone for removing sand from oil sand separation characteristics can achieve the theoretical requirements .

试验结果表明，通过二级分离，对大于80目的砂粒，除砂效率能达到95%。

The results show that through two-stage of separation , 95 percent of sand can be removed by the desander .

试验表明该除砂技术较为完善地解决了地面集输系统由于原油采出液中含砂造成的危害。

Test shows that the sand removal technology solves the sand-containing problems perfectly in produced liquid in surface gathering transfering system .

稠油粘度大，含砂粒粒径分布范围广，成为除砂工艺中的技术难点。

Heavy oil is very viscous , range of size distribution of sand is wide , which are technical problems of desanding process .

木制方薄片型粒片板，不论是否用树脂或其它有机胶合剂胶合，未加工或除砂磨外未进一步加工者。

Waferboard of wood , whether or not agglomerated with resins or other organic binding substances , unworked or not further worked than sanded .

针对原油采出液含砂的问题，采用了水洗沉降除砂法及化学水洗沉降除砂法。

In accordance with sand-containing problem in produced crude , the aPthors apply water wash-settling sand removal method and chemicals-water wash settling sand removal method .

通过有关文献总结、专利调研和国内现场考察，在液固分离方面选用离心分离方法，用于井口除砂；

By summarizing the relational references , proceeding the patent retrieval and the domestic on-site investigation , centrifugal separation technique is adopted for wellhead desanding on the liquid-solid separation .

首节及中间各节除砂管内装有滤砂筛，末节除管内装有磁铁。

A filter sand riddle is installed in the head desanding tube and in each desanding tube in the middle , and a magnet is installed in the end desanding tube .

分离器能有效分离粒径大于40μm的砂粒，其除砂效率η>92%。

It is favorable to raising the sand separation efficiency , this cyclone separator can separate sand grains larger than 40 μ m , with the separating efficiency greater than 92 % .

重点是阐述了水力旋流器分离液固两相流颗粒运动状况，研究了不同流态下的颗粒相对运动速度，可除去的最小颗粒粒径以及除砂（泥渣）率的估算方法。

This paper also studies the relative motion velocity of particles in different flow regions , the smalles size of the particles removed by the vortical setting , and the descending rate .

提出了以旋流分离为主体技术进行原油脱气、脱水、除砂以及气体、原油和污水净化的技术设想。

The hydrocyclone separation technology should be used as the main technique for separating gas / water / sand from crude oil , droplets from gas , separating oil from sewage as well .

在更换滤网时，要按正确的操作步骤进行泄压，确定除砂罐内的压力泄尽后，才能打开除砂罐上端的顶盖，进行更换。

Make sure the pressure in the tank of the sand separator was released to zero , then open the top cap on the upper end of the tank to replace the filter screen .