Easy quantitative sampling device for inhomogeneous powder

Abstract

The invention provides an easy quantitative sampling device for inhomogeneous powder, and belongs to the fields of mines and exploration. The device comprises a sampler for clamping the inhomogeneous powder, a first connection rod, a second connection rod, a first extension rod, a second extension rod, a handle open-close rotation support rod, a handle and a spring. Samples are accurately taken, wherein a volume of a cone cylinder is designed according to basic requirements for sampling volume of an iron ore volume weight and grade test sample, quantitative sampling is conducted in each blasthole at one time, and working efficiency is improved. The cone cylinder has a length adaptive to the height of rock debris, and uniform sampling can be conducted along the stacking depth; point sampling of a traditional sampling shovel is changed into column sampling, and the representativeness of a sample is greatly improved; the handle height and operation mode of the sampling device conform to the man-machine engineering principle, workers do not need to continuously bend down to take samples any more, and the acknowledged labor intensity is greatly reduced; the representativeness of the sampled sample is improved so that the use ratio of mining resources can be improved, accurate information is provided for scientific proportioning, and accordingly great economic benefits are brought to the mines.

Description

technical field [0001] The invention belongs to the field of mines and drilling, and in particular relates to a convenient quantitative sampling device for non-uniform powder. Background technique [0002] In the production of open-pit mines, in order to accurately determine the grade of the mined ore, before each blasting, a certain amount of ore samples must be taken from the rock powder drilled out of each hole for testing the grade of the ore; the current sampling method is that the sampling worker Use a small shovel to randomly take two to three shovels from the pile of drill cuttings, estimated to be about 100 grams, and put them in a sample bag for use; this method has the following disadvantages: [0003] 1) Random sampling with a shovel is poorly represented; [0004] Such as figure 1 As shown, the accumulation level of drilling cuttings is that as the drill bit drills down, the cuttings are continuously blown up, and the cuttings in the deepest part of the drilli...

AI Technical Summary

Problems solved by technology

However, the practice in reality is that the sampling workers only use sampling shovels to randomly take some cuttings as samples, and rarely take samples at different depths. The result of this is that the samples are poorly representative and cannot represent the average grade along the depth direction, which greatly affects the mine ores. The scientificity and reliability of grade management and ore blending production;

[0005] 2) The labor intensity of sampling workers is high;

According to the current sampling method, the sampling worker bends down to take samples and repackage them, and when he walks down a stope, he is often so tired that his back is sore and his legs hurt;

[0007] 3) Inaccurate sampling and quantification;

[0008] The test requires that each sample weighs about 100, but the current small shovel sampling measurement is not accurate

If the surface of the cuttings is hardened, it is necessary to use a shovel to peel off the surface hardened layer before sampling, which will affect the sampling efficiency.

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