Sampling and sample preparation method for bulk solid kind mineral product resource commodities
A mineral resource and bulk technology, which is applied in the field of sampling and sample preparation of solid bulk mineral resource commodities, can solve problems such as deviation and hidden decision-making risks, and achieve the effect of improving the level and improving the risk control ability.
Active Publication Date: 2017-09-05
济南鼎道企业管理咨询有限公司
View PDF7 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
For example: for the sulfur content in coal, if the sampling variance contribution value is 80%, the sampling error will be about 90%, which is much higher than the 7% error introduced by the test. value to estimate how much SO needs to be controlled from China's annual consumption of 3-4 billion tons 2 Emission issues will hide many decision-making risks due to sampling and sample preparation errors; similarly, simply using an average ore grade to estimate the overall process characteristics and corresponding processing load of metal mineral products may also cause potential deviations
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreExamples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0040] The present invention will be further described in detail below in combination with specific embodiments.
[0041] The sampling method for solid bulk mineral resource commodities includes the following steps:
[0042] ①.Description of the statistical characteristics of the population to be sampled: the true value and deviation of the population to be sampled obey the normal distribution, and its variance is S 2 , the number of samples at one time is N, and the average value of one sample is X - .
[0043] ②. Calculation method of one sampling number N:
[0044] A sampling number N≥(a / u a · u γ / r-1) 2 / (1-( a / u a · u γ / r-1) 2 ), this (N+1) is rounded to get the minimum number of samples;
[0045] Wherein, a is the relative deviation of the measured value;
[0046] u a is the half-width corresponding to the confidence of the measured value;
[0047] r is the relative deviation extreme value of the overall parameter to be measured;
[0048] u γ is the half-...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a sampling and sample preparation method for bulk solid kind mineral product resource commodities. The sampling and sample preparation method comprises steps of statistic characteristic description of a totality to be sampled, determination of a calculation formula of one-time sampling quantity N, determination of a quantity for single-time sampling and determination of a sample preparation method. The sampling and sample preparation method of the invention uses an error transmission link to perform chain control on a link of working quality detection in the lab and links of sampling and sample preparation outside the lab so as to guarantee accuracy of a collection and preparation accuracy of the bulk mineral products like coal, iron ore, etc, and provides basis of a theory and a practice method to high fidelity sampling. Through using the sampling and sample preparation method of the invention, various trading bodies will create a collection and preparation working environment which is more fair, justice and scientific. The sampling and sample preparation method of the invention can provide conditions to comprehensively improving and developing a detection system, and provides theoretical and method basis to supervising departments for evaluating and controlling high power consumption and high pollution industries. The sampling and sample preparation method will greatly improve China's risk control capability for quality of bulk mineral products, and allows China to have right to speak.
Description
technical field [0001] The invention relates to a method for sampling and preparing solid bulk mineral resource commodities. Background technique [0002] Bulk mineral products, as the basic resources of industrial civilization, play a pivotal role in the world's major economies. Coal, as China's main energy mineral, has a very long mining history like iron ore, copper ore and other metal resource minerals. The world's utilization of minerals is changing from a simple and extensive type to a refined and economical type. In order to achieve the optimal application of mineral resources, all relevant parties have carried out a comprehensive evaluation of mineral resources. The resource evaluation of minerals is usually based on its reserves, mining costs, grades, etc., and its core tool is the detection of mineral products. It can be said that the detection results have a crucial impact on the evaluation of the comprehensive development and utilization of mineral products . ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G06Q10/06G06Q50/02G01N1/04
CPCG01N1/04G06Q10/06395G06Q50/02
Inventor 徐海伟姜永梅徐艺瑗
Owner 济南鼎道企业管理咨询有限公司