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Posts Tagged ‘Safety Products’

Knowledge of Chemistry of Explosives

Sunday, December 19th, 2010

Both Glucose and Explosives liberate energy but rate of liberation is slower with glucose but instantaneous with explosives. Another differentiation is that the glucose contains C carbon, H hydrogen and O oxygen atoms in molecule but the explosive necessarily contains N nitrogen atoms. The C6H122O6 is a glucose molecule but CH2ONO2CHONO2CH2ONO2 is Nitroglycerine (NG) which explodes to form a mixture of steam, nitrogen CO2, and O2 at 30000C. So a rate of Chemical Transformation from one form to another Chemical Structure is significant to define a role of a chemical.

The NG is also known as Dynamite, discovered by Alfred Nobel, Swedish engineer, in year 1867. The fortune acquired by manufacture of NG led Nobel to establish a world famous Nobel prize. When Ammonium Nitrate as an Oxidant is added to the NG, then it is called as Ammonia Dynamite but on addition of Sodium Nitrate, it is named as Straight Dynamite. Perhaps keeping a current situation in the mind, it is essential to be in possession of fundamental knowledge of chemical explosives. It is in interest of the Safety, and Welfare of the society. There are 2 categories of Explosives based on their Detonating nature. The first is low Detonating and the second is high detonating with low (rate of detonation, 900 ft/sec) and high (4 miles/second) rate of chemical transformation respectively.

Detonating explosives are further divided into Primary and Secondary explosives. Typical primary explosives are Lead Azide [Pb(N3)2] and Mercury Fulminate [Hg(CNO)2] but secondary needs a Booster to bring them to detonating level. Secondary explosives are Tetry, PETN and Cyclonite. Chemically the explosives belong to category of Internal Oxidation-Reduction [IOR] compounds with a Pyrotechnically Active Group of atoms within the molecular structure. Technically group of atoms are named as Explosophore, the Azides, Bromates, Chlorates, Chlorites, Iodates, Nitrate, Nitrites, Perchlorates and Picrates. Other examples of IOR are NG, Picric Acid, Ethylene Glycol Dinitrite, as these contain several Nitro Groups. Fundamentally Artillery Ammunition contains- Primer (KCLO3, Potassium Chlorate), Igniter (Black Powder), Propellants (Smokeless Powder), Bursting Charge, Booster and Detonator.

Industrial Safety Products

Saturday, January 30th, 2010

Industrial safety products are designed to be used within industrial facilities to improve the health and well being of workers and the environment.

One such industrial safety product is the safety sensor. There are varies types of safety sensors such as a break-a-beam sensor, these are triggered when a solid beam of light gets interrupted by something, therefore shutting off power, or initiating whatever safety response. Other types of industrial safety product sensors include and interlock or tag out device, a photoelectric safety sensor, a safety block, and even sensor switches to aid with electrical connections.

Another handy industrial safety product would be safety relays and control modules. These are devices that typically have three relays. One relay will check condition, and the two others will signal a failure. Pressure sensitive safety edges and safety bumpers are important safety products in industrial automation as well. These are items that are made of a flexible material, and they can usually be found on the edges of the moving parts of a machine, typically powered doors or tables. These not only maintain safety for the sake of the machine, but for the worker as well. When one of these safety bumpers or edges comes into contact with an operator or worker, conductive plates come together and an electrical signal is sent to shut down the machine. This could prevent major damage to the machine, as well as assuring key safety for a worker.

Another issue you may face within an automated and mechanical environment is that of fires, or even explosions. One industrial safety product that can help prevent this is an intrinsic safety barrier. These are devices that regulate the electrical powers such as the current, voltage, and overall energy that is being sent to a sensor that is in a hazardous or fire sensitive area of production. By regulating the amount of energy going to the sensor, you can be proactive in preventing possible explosions, fires, or other major malfunctions within a given environment.

One more vital safety product for industrial automation areas are safety mat controllers. Usually when you think of safety mats, it would be to prevent slipping, but these mats serve a much different purpose. Typically you will have a single, or series of mats laid out around an area or piece of machinery. These mats have controllers connected to them that are pressure sensitive and communicate when something is near the machinery in an area it should not be in. The controller gets a signal, and there is an instantaneous shut down of the equipment, preventing damage or harm.

There are many industrial safety products out there to help companies continue competitive production while maintaining a safe environment. The most important thing is to do your due diligence and make sure you take advantage of them.