保定市抽沙管道厂

（一）、安全性

(1), security

耐磨管--抽沙管道的安全性表现在以下几方面。

The safety of the wear-resistant pipe - Sands pipe is shown in the following aspects.

1、操作运行风险小，安全系数大，不至于因失效而产生重大事故。

1, the operation risk is small, the safety factor is big, and the major accident is not caused by the failure.

2、运转平稳，没有或者少有、冒、滴、漏现象，不至于造成装置短生产周期的停车或频繁停车。

2, smooth operation, no or few, run, drop, leak phenomenon, not to cause a short production cycle of parking or frequent parking.

3、设计时，对可能发生的安全问题做出正确评价，在抽沙管道布置和管路设备布置时给于充分的考虑，降低事故发生的概率。

3, during design, we can make a correct assessment of possible safety problems, and give full consideration to the layout of sand suction pipes and arrangement of piping equipment, so as to reduce the probability of accidents.

（二）、满足工艺要求

(two) meet the requirements of the process

1、满足工艺要求是抽沙管道设计的最基本要求。工艺流程图是耐磨管道设计的依据。

1. To meet the requirements of the process is the most basic requirement of the design of the sand pipe. The process flow chart is the basis of the design of the wear-resistant pipeline.

2、抽沙管道工艺流程的开发来源。工艺流程的开发来源于工厂的技术革新或研究单位的新技术开发。这方面在国内的选矿领域主要是依赖于长沙设计院、南昌设计院、北京有色等八大冶金设计院。国内大多工业企业的耐磨管道、压力管道设计都是由他们来完成。

2. The source of the development of the process flow of the sand drainage pipeline. The development of the process flow is derived from the technological innovation of the factory or the development of the new technology of the research unit. In this respect, the main field of mineral processing in China depends on the Changsha Design Institute, the Nanchang Design Institute and the Beijing Nonferrous Metallurgical Design Institute. The wear pipe and pressure pipe of most industrial enterprises in China are designed by them.

3、工艺流程的种类。

3. The type of process flow.

工艺工程师通过各种图纸来表达化工装置中单元操作的相互关系，以及它的工艺概念。通常有三种用于工艺流程的设计图纸。蓝图、工艺流程图和管线及仪表流程图。

The process engineer expresses the relationship between the unit operation in the chemical plant and its technological concept through various drawings. There are usually three kinds of design drawings for the process flow. Blueprint, process flow chart and pipeline and instrument flow chart.

耐磨管--抽沙管道设计需要参考的工艺流程图，一般指管线及仪表流程图。

Wear pipe - sand extraction pipeline design need to refer to the process flow chart, generally refers to the pipeline and instrument flow chart.

（三）、经济性

(three), economy

这是指耐磨管--抽沙管道的一次投资费用和后期操作维护费用的综合指数低。一般情况下，如果一次投资费用较高，其可靠性好，操作维护费用低；相反亦然。在设计中，要力争做到管道系统中各部件具有相同的强度和寿命。而如果可以选择到一次投入成本低，而且维护、更新费用少的耐磨管道，则可以实现质优价廉的目的，管道既耐用，又经济实惠。2001年起新兴的超高分子量聚乙烯管道就是这一样一种管道，它的材料成本和安装成本比碳钢管道、陶瓷管道、铸石管道、双金属管道都要低的多，而且耐磨、耐压性、抗冲击能优异，目前已被各大设计院充分认可。

This refers to the low comprehensive index of the one investment cost of the abrasion resistant pipe and the maintenance cost of the later operation. In general, if the cost of an investment is higher, its reliability is good and the cost of operation and maintenance is low; on the contrary. In the design, we should strive to achieve the same strength and life of the components in the pipe system. If we can choose a wear-resistant pipeline with low input cost and low maintenance and renewal cost, we can achieve the purpose of quality and low cost, and the pipeline is durable and economical. 2001 ultra high molecular weight polyethylene pipe is this as a new pipeline, its material cost and installation cost than carbon steel pipe, ceramic pipe, cast stone pipes, double metal pipe is much lower, and wear resistance, pressure resistance and impact resistance can be excellent, has been fully recognized by the design institute.