What risks are present when entering a grain silo?

Article by: Mr. Ander Caban | Last update: April 10, 2022
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The risks in silos are multiple, since in addition to the accumulation of toxic or flammable substances and oxygen shortage, there are also those caused by narrowness, uncomfortable working postures, limited lighting, etc.

What happens if I fall into a corn silo?

Grain trapping occurs when an individual sinks into an unstable grain silo that collapses on itself, trapping the individual inside. Once the victim is completely buried under the grain, it becomes the grain’s shell, often resulting in death by suffocation.

What is explosion risk factor?

Where and when is there a risk of explosion? Explosion-hazardous areas (Ex zones) are distinguished by a mixture of air and flammable gases, vapours, mists or dusts and, in principle, can be present everywhere where liquids, gases or liquids are manufactured, packaged, transported or stored. flammable dust.

Why do silos explode?

The silos where the grains are handled are at risk of explosion from the dust that is produced when cereals are transferred, which is combustible. “Under certain conditions, very violent explosions can be generated.

How to climb a silo?

Safety regulations in silos:

The silos must be out of the reach of children and unauthorized personnel. … Forage storage ladders should be at least 7 feet off the ground. Keep ladders in good condition. When filling or emptying, never allow people in or around silo.20 related questions found

How is the silo used?

Silos are containers of different shapes that can have a capacity of a few cubic meters or a few hundred, and that can be open or hermetically closed; They are used for the storage or preservation of a wide range of products, whether grains, flour, fodder or liquids.

How does a corn silo work?

Metal silos are containers for storing corn, beans, and other grains. They are cylindrical in shape and made of smooth zinc sheets, galvanized with tin. Both the top of the silo and the bottom are flat. The upper part has an opening with a lid that is used to pour the grain.

How are explosions generated?

Explosions result from the decomposition of pure substances. Any chemical reaction can cause an explosion if gaseous products are emitted, if foreign substances evaporate due to the heat released in the reaction, or if the temperature of the gases present rises due to the energy released.

Why do powders explode?

Dust explosions occur when combustible dust accumulates in the air and burns rapidly, causing a strong pressure wave. They are a deadly hazard in a variety of workplaces, from grain silos to plastics factories.

Why does the dust explode?

Dust explosions are the result of high concentrations of rapidly burning combustible dust particles within an enclosed space.

What are the consequences of the explosions?

The immediate consequences of an explosion are, on the one hand, the generation of pressure waves that create alternative compressions and expansions of the air and, on the other hand, the formation of accelerated objects that act as projectiles10.

How does an explosion affect?

An explosion creates a shock wave, which if intense can tear tissue. The less intense explosion can damage the eardrums, the lungs and the abdomen. Blast waves also throw debris at a very high speed that can injure any part of the body.

What are explosions and spills?

An explosion, fire, leak or sudden spill that results from a process in the course of the activities of any establishment, as well as in pipelines and transport, involving one or more dangerous substances and that supposes a serious danger (of manifestation immediate or delayed, reversible or…

What is a barn silo?

A silo (from the Greek σιρός – siros, “pit or hole to preserve grain”) is a construction designed to store grain and other bulk materials; They are part of the agricultural collection cycle. The most common have a cylindrical shape, resembling a tower, built of wood, reinforced concrete or metal.

What powders are explosive?

Powdered organic materials are explosive, as is the case, for example, with wood, flour, sugar, grain and seeds. Particles from pharmaceuticals and pesticides, as well as rubber, textiles, and plastics, can also be explosive.

How to make a dust explosion?

There are four elements necessary for a dust explosion to take place:

A powdered fuel. The powder is suspended in the air in a sufficiently high concentration. An oxidizer (typically atmospheric oxygen) An ignition source.

Why can flour explode?

It is, therefore, a carbohydrate made up of flammable glucose chains. There is no problem if it remains inert inside a container, but when it is in suspension it is dangerous, since it meets the conditions necessary for combustion: an oxidizing gas –oxygen– and a fuel –flour grains–.

What type of reaction is an explosion?

The explosion reaction is an internal oxidation-reduction process in which the elements of the explosive molecule are combined, without intervening oxygen external to the molecule.

What is an explosive product?

2.1.1.1 Explosive substance is a solid or liquid substance (or mixture of substances) that spontaneously, by chemical reaction, can release gases at such a temperature, pressure and speed that they can cause damage to its surroundings.

Why are the silos so tall?

The elevated silo is mainly used to store more delicate products that could be damaged by unloading mechanization (sweepers). Another important reason for choosing elevated silos is the foundation.

How to calculate the volume of a corn silo?

In a corn silo, as shown in the applet, the volume can be calculated knowing the radius of the base of the cylinder, its height and cone data. In the applet you can find the volume of the silo according to the variation of the radius of the base and the height of the cylinder and cone, a, h and h2.

What are the parts of a silo?

The parts of a silo

    – The bag filter. It is the one in charge of separating the gases from the solids, so that the grain or the content of the silo is not contaminated.– The overpressure-depression valve. Relieves the pressure that may exist inside the silo.– The cut-off valve in the loading pipe.

How do cement silos work?

How a Cement Silo Works

After the cement plugs the cloth bag, the pressure in the silo exceeds the safe pressure of the discharge valve at the top of the silo, please open the valve and release the pressure of the tank and prevent the explosion accident from happening.

What can be stored in silos?

A silo (from the Greek σιρός – siros, “pit or hole to preserve grain”) is a construction designed to store grain and other bulk materials; They are part of the agricultural collection cycle. The most common have a cylindrical shape, resembling a tower, built of wood, reinforced concrete or metal.

How is corn stored?

For long-term storage, they will need a grain dryer to keep the corn at a low moisture level. With 13% humidity, mold growth can be prevented, keeping the grain in excellent condition.

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