Want to take the laboratory technician qualification exam

The laboratory technician qualification certificate can be registered in the local vocational training center, and the training center will inform you of the specific examination time. Generally, there are two sets of examination papers: the basic knowledge of laboratory theory and the basic knowledge of laboratory practice. The examination is generally not difficult.

The general examination is not difficult, and the highest level that is recommended to be submitted depends on the individual's education and length of service. According to the latest national vocational guidance requirements, laboratory workers belong to the national special type of work, and must hold the national vocational qualification certificate. Chemical verification can only be obtained in the vocational training base under the State Administration of Quality Supervision, which is a valid certificate.

Strictly speaking, only institutions and research institutes have such qualification certificates, that is, at best, they are labeled as laboratory assistant engineers, laboratory engineers, laboratory senior engineers, etc. As long as they stay in the unit and wait for enough age, they can get them more or less. People in society can only take the professional title exam or work skills. You can also take the qualification certificate for training in the industry.

Extended information:

General introduction of mineral processing engineer

Occupation profile: I applied for mineral processing engineer series, and my most relevant major is mineral processing technology. Its core courses include industrial electrical control, mechanical principles and parts, mineral processing machinery, gravity beneficiation, flotation beneficiation, magnetoelectric beneficiation, mineral chemistry, production technology management of concentrator, concentrator design, mineral quality inspection, experimental design, solid-liquid separation, graduation comprehensive training and practice and other courses. The field of employment is the technical and management department in the field of mineral processing.

professional qualification:

the professional qualification is divided into three levels: assistant mineral processing engineer? Mineral processing engineer? Senior mineral processing engineer.

grade refers to the content ratio of useful elements or their compounds in the ore. The higher the content, the higher the grade. Based on this, it can be determined that the ore is rich or poor. It also refers to the ability to distinguish and appreciate things.

ore grade?

ore quality unit. The unit content of useful components in ore (the higher content is usually expressed as a percentage, and the lower content such as precious metals is expressed in grams/ton, grams/liter, grams/cubic meter and other units).

such as 4% iron ore, 5% copper ore and 5g/ton gold ore.

Mineral processing technology majors train mineral processing technicians, experimenters, chemists and safety supervisors, as well as high-quality skilled talents who can engage in "production, construction, management and inspection" in the field of mineral processing technology, complete unit process design, make production plans, and guide and manage the daily production and construction of mineral processing plants.

basic mineralogy, crushing and grinding, flotation, magnetoelectric beneficiation, gravity beneficiation, chemical beneficiation, research on ore washability, auxiliary equipment of concentrator, design of concentrator, tailings facilities and maintenance, etc.

Application field of ore grade detection

◆ Accurate grade evaluation of high-grade and selected ores provides the basis for ore collection and purchase value;

◆? Analysis of residual ore elements in slag and tailings to determine their value again;

◆ Conduct quality inspection in the process of ore mining, boring, grinding, concentration and smelting, determine the grade, and analyze the solutions in the filter melting tank, storage pond and steel tank;

◆ Quickly survey the super-large mining area, effectively determine the zone pattern, draw the mine map and conduct real-time exploration;

◆ Quickly track mineralization anomalies on site, effectively find "hot spots" and delineate ore body boundaries;

◆ Analyze the milling head, concentrate and slag quickly and accurately, so as to establish the process of efficient mining and enrichment;

◆ The effectiveness of refining or concentration process is determined/tracked through on-site analysis of conveying materials, concentrates and slag. Mine description and grade control;

◆ Through real-time on-site analysis of multiple samples, the mining plan can be guided and the excavation and blasting work can be effectively managed;

◆ Determine the geological composition of soil, sediment or borehole samples on site to effectively control the exploration cost.

resources:?

Mineral Processing Engineer Admissions Guide-Vocational Qualification Examination Network

Mineral Processing Technology Specialty-Baidu Encyclopedia

Portable Fast Ore Grade Detector-Baidu Encyclopedia

Grade (useful content of ore)-Baidu Encyclopedia