Search results for keyword: breathing
Air supply for shaft construction
Introduction
Ventilation systems in construction are essential to ensure safety and thermal comfort of workers during construction works. Poor ventilation in construction sites can cause a number of health problems as well as reducing productivity. Ventilation during construction works is require......
1040 
Avery
Detection and Automatic Control of Pitch Coke Production
， 关于沥青焦生产的检测和自动控制。
Introduction
Asphalt is an important commodity in the construction of roads and highways. It is a product derived from petroleum, and is typically applied in a hot and fluid form. Asphalt production plants require precise control over the various processes in or......
Zinc Processing Plant Design
Background
The production of zinc is an important part of the industrial process, and the use of zinc has increased substantially over the years. Zinc processors are employed by companies to turn zinc ore into metal and other metal products. The design of a zinc processing plant is, therefore, a......
Chromium Oxide and Metal Chrome Workshop Design
Design of Chromium Oxide and Metal Chrome Workshop
Chromium and its compounds are widely used in our daily life. Chromium oxide and metal chrome are two of the most common forms. Chromium oxide has many uses, such as non-metallic, hard coating and protective coating, while metal chrome is used mo......
filling
The Study of Human Behavior
Human behavior is a complex and complicated subject that has long been studied by a variety of professionals and researchers. From developmental and social psychologists to medical doctors and psychologists, numerous different individuals and areas of study have discov......
Lung cancer in chromate manufacturing workers
Chromium is an element used in the manufacture of stainless steel, an alloy that is used for many purposes. Chromium is also used in a variety of industrial processes, including those used in the manufacture of chrome-plated metals and in production of dyes and pigments. Chromium is a pollutant, a......
Arsenic poisoning
Arsenic Poisoning
Arsenic, a metalloid, is found all around us in small amounts in earth’s crust. We can find it in many products and industrial processes, like steel alloys, explosives, semiconductors, and even water treatment. In small quantities, it is usually harmless. But when it accumulate......
Labor Hygiene in Ironmaking Industry
Iron Refining Industry Hygiene
Iron refining is a process of using heat to reduce the concentration of impurities in metal ore and produce iron. The iron refining process is an important part of iron production and is one of the most labor intensive industrial processes in the world. As such, it ......
hydrogen sulfide poisoning
Introduction
Hydrogen sulfide (H2S) is a naturally occurring chemical compound found primarily in petroleum, petroleum pollution, and large deposits of decaying organic matter. It can also be created by industrial activity, such as welding and smelting. Hydrogen sulfide is a colorless, very toxic......
nickel poisoning
Nickel Poisoning
Nickel is a common element found in the environment. It is also an important industrial metal used in many products such as coins, jewelry, battery cells, and some metals. While the presence of nickel in many products is beneficial, it can also be harmful when it is inhaled, ingest......
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