A method for automatic sampling of cement raw meal on-line X fluorescence analysis

Abstract

The invention discloses an automatically-sampling-type on-line X-ray fluorescence analysis method of cement raw materials. The automatically-sampling-type on-line X-ray fluorescence analysis method comprises the following steps that a material - receiving electric ball valve is opened, a sampling mechanism enters into the sampling period, a gear motor rotates forward for sampling, and the materials are continuously accumulated in a lower glass pipe; if the material level is accumulated to reach the position of a feeding level sensor and, and a 'full material signal' is triggered, forward rotating of the gear motor for sampling of the gear motor is stopped, otherwise, sampling continues being conducted; if the number of times of forward rotating of the gear motor exceeds the number of timesof the upper limit and, and a full full material fullness state is still not reached, a system feeds back the situation that 'the materials are not full' back, and at the momentmeanwhile, operating is stopped; and when the feeding level sensor triggers the'full material signal', the material receiving electric ball valve is closed, an upper ventilation valve is closed, an upper telescopic brake plate is closed simultaneouslyat the same time, and the gear motor of thea sampling mechanism is stopped for a while and then executes reverse rotating for sample clearing, so that the materials in reamer thread gaps are discharged back into an air conveying chute through a feeding inlet in the front end of an outer sleeve.; and Tthrough continuous cycle operation, it is ensured that the material amount of samples used for an on-line X-ray fluorescence measuring mechanism is stable, and the timeliness and representativeness of the samples are high.

Description

technical field [0001] The invention relates to the field of on-line detection of industrial material components, in particular to an on-line X-fluorescence analysis method for cement raw materials. Background technique [0002] Cement raw meal is an important source of cement production. In the cement production process, cement raw meal determines the product quality of cement clinker to a large extent and affects the economic benefits of enterprises. The production of cement raw meal is composed of four process links: mine mining, raw material pre-homogenization storage yard, raw meal grinding, and raw meal homogenization warehouse. Limestone, clay and other raw materials are ground into loose fine powder by raw meal mill Shaped raw meal, the air conveying chute driven by the fan airflow makes the raw meal in a suspended state along with the airflow and is transported to the raw meal homogenization warehouse along the pipeline, and then enters the kiln for calcination to f...

AI Technical Summary

Problems solved by technology

[0006] The invention provides an online X-fluorescence analysis method for automatically sampling cement raw materials, which can realize automatic sampling, quantitative sampling, X-ray fluorescence measurement and sample clearing of cement raw materials on-line, and solve the problem of manual labor in the X-fluorescence analysis process of traditional cement laboratories. Dependencies and time lag issues

Images