The evaluation of the test results is a method of judging whether the test results are good or bad. Although all the data obtained in the scientific experiment work should be useful for us to analyze and judge the problem after de-authentication, for a specific occasion, there is always only one or a few to answer a specific question. Data is decisive and can be used as the main criterion for judging problems. This is the criterion.
The beneficiation process typically used to determine the sorting process (as well as screening, classification, and other separation processes) indicators recovery efficiency [epsilon], grade beta], the yield of gamma], the amount of metal P, and the ratio of high-grade ore beneficiation ratio. These indicators can not reflect the efficiency of the beneficiation process in both quantity and quality. For example, the recovery rate and the metal amount are quantitative indicators, the grade and the rich ratio are the quality indicators, and the combination of the yield and the beneficiation ratio is different. It is impossible to explain the problem, so in the actual work, two indicators are used in pairs, namely a quantity indicator and a quality indicator.
In order to compare different mineral processing plans (processes and conditions), as long as the original ore grades are similar, it is generally judged by the pair of supply grades and recovery rates. If the grades of raw ore are far apart, it is necessary to consider the use of rich ore ratios instead of grades as quality indicators. ; also commonly yield coal industry to do the selected number of indicators, provided that all kinds of raw coal, "coal-bearing amount" are less, for coal quality requirements are much the same, and thus generally means less yield loss. As for other indicators, such as metal is mainly used for production accounting in the factory, it is used as a criterion only in a few cases in laboratory tests; the beneficiation ratio is only an auxiliary index, and it is not commonly used in the ore dressing test.
Using a pair of indicators as a criterion often leads to situations that are difficult to distinguish. For example, in two experiments, one has a higher grade and a lower recovery rate, and the other has a lower grade and a higher recovery rate, so it is not easy to distinguish which experiment is better. Therefore, for a long time, many people have been working on finding a comprehensive index to replace the above-mentioned method of using a pair of indicators as a criterion, and proposed various efficiency formulas for this purpose. Unfortunately, in the specific conditions encountered in the beneficiation process, the degree of quality in terms of the quantity of separation efficiency is often different. In fact, it is impossible to find a formula that can “flexibly†reflect such requirements, and thus actually It is impossible to find a general comprehensive indicator to completely replace the existing method of using a pair of indicators as a criterion. Another method is to use the graphical method to evaluate the beneficiation efficiency. As we will see below, the essence of the graphic method is also based on a pair of indicators, but the curve in the graph can be used to infer which one is the same when the other is the same. Who is low, so there will be no difficult to distinguish the situation, the disadvantage is that the continuous curve often requires more raw data, and the corresponding test workload is also larger, so it can not be used under any circumstances.
WinnerLifting has been dealing with a large range of Ratchet Buckles.
You can find 1'' ratchet buckles here,their capacities range from 800kgs/1,760Lbs~1,000kgs/2,200Lbs.
And,there are some heavy duty 1'' ratchet buckles,which are of 1,500kgs/3,300Lbs breaking strength.
Of course there are 2'' buckles,which are the most popular ones.
If you need bigger ones,like 3'' buckles or even 4'' buckles,no problem at all!
Steel Ratchet Buckles,Manual Ratchet Buckles,Metal Ratchet Buckle,Plastic Handle Ratchet Buckle
WINNERLIFTING INDUSTRY & TRADING CO.,LTD. , https://www.winnerlifting.com