What Are the Properties of Sulfur?

Sulfur (sulfur) is a non-metal element, chemical symbol S, atomic number 16. Sulfur is one of the oxygen group elements (Group VIA), and is located in the third period in the periodic table.

The English name of sulfur is sulfur, which is derived from the Latin "surphur". Legend is that it is from India.

Kangxi dictionary

"Guangyun" and "Jiyun" strive to cut, stay. Stone sulfur, medicine name. "Zhengzitong" Huainanzi, sulphur yellow zeolite in summer solstice, cover the ground into the ground, meet the overcast, the sulphur is like honey, there is golden red in the yellow, hit like a crystal, there is no good sulfur today. This stream, because of its stone-like, Tang Yun from stone. Also for stay. Vulgarity is also ridiculous. character from stay. ^[3]

Sulfur is widely distributed in nature, and its content in the crust is 0.048% (by mass). The form of sulfur in nature is

to

According to the national standard "Industrial Sulfur" (GB 2449-2006), the protection matters related to industrial sulfur safety are as follows.

• Safety.

Workers engaged in the production, transportation, storage and processing of industrial sulphur shall use necessary protective equipment when operating.

Strictly abide by national regulations on fire safety and dangerous goods. Industrial sulfur storage sites and warehouses shall be provided with special fire extinguishing equipment, and naked flames are strictly prohibited. It is allowed to extinguish burning sulfur by spraying water and other methods. ^[5]

Sulfur warehouse explosion

On January 13, 2008, a sulfur warehouse in a branch of a domestic company exploded, killing seven people and injuring 32.

After 2:45 on January 13, 2008, 53 workers of the railway transportation loading and unloading contractor started the train sulfur unloading operation in the company's sulfur warehouse, that is, unloading and unpacking the sulfur packing bag from the train, They were poured into 34 hoppers parallel to the railway and flush with the ground. The sulphur fell on the conveyor belt in the pit through the hopper, and the sulfur was sent into the sulphur warehouse with the conveyor belt as the raw material for the company's sulfuric acid production. Sudden explosion of sulfur dust in the pit at 3:40. The explosion shock wave destroyed the hopper, the light roof of the sulfur storage, belt conveyor, bucket elevator and other equipment and facilities, causing 7 deaths, 7 serious injuries, and 25 light hurt.

Causes of the accident The main reasons for the accident are: first, the weather is dry, the air humidity is low, and the sulfur dust is easy to explode; The concentration increased to reach the explosion limit, and the explosion was caused by the ignition energy generated at the scene. ^[5]

Sulfur molding system explosion

A domestic factory has two sets of sulfur recovery devices, which share a forming and chipping machine with a production capacity of 7500t / a. The molding system includes a molding chipping machine (second floor), a packaging room and a finished product warehouse (first floor), and the packaging room and the finished product warehouse are mixed.

At 14:10 on June 23, 2001, a porter drove an outbound truck without a fireproof cap into the sulfur finished product warehouse, which caused a small explosion in the finished product warehouse. Fortunately, there were no casualties.

At 10:30 on January 19, 2003, when an electrician dismantled the axial flow fan on the air guide on the top of the chip forming machine, the electric spark generated caused the sulfur dust in the air guide to explode. The shock wave generated by the explosion will be on-site. An operator pushed it 1.5m away. Fortunately, it was protected by a guardrail and there were no injuries.