What is Shawl?

Mining road construction equipment

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Moradi mine contracting, production and sale of Moradi mine and road construction equipment in Ardabil

mines

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Shovel is a type of excavator set that is used to load hard rocks (and exceptionally soils) and often in open space (open pit mines).
Shovels are used in strip and cavity mining are used In the strip method, the overburden is removed and poured into an adjacent previously mined section, and the mineral material under the overburden is loaded by another machine and taken to another part. or higher than that.

⏬ shawls ⏬

*️⃣ standard shovel:
used in surface mining and for general purposes. They are used to load all kinds of ores and tailings. Their capacity is usually between 7 and 40 cubic meters.

The size of the box (cup) of these shovels is about 25% smaller than the standard types, and their mast is 35% and sometimes more than that, depending on the size of the selected cup. Long-mast shovels, with a box up to 1.5 cubic meters, are also made

*️⃣ coal loaders:

They are similar to standard shovels, but their shovels are about 75% larger than similar standard types.
The capacity of these loaders is up to 100 meters. The cube also arrives.

🔽 Shawl Building 🔽

Shovels consist of three main parts, which are:

️ ️ Main chassis:

This section forms the lowest part of the Shovel building and consists of two parts: the chariot and the fixed chassis.

• Chariot (or means of movement): It is usually a chain wheel and can be used to move the car . The reason for using chain wheels is to prevent the shovel from sinking into the ground. The presence of more contact surface of the chain wheels with the ground, reduces the pressure on the surface (especially dirt and soft ground). It is low and the shovel needs a lot of movement and movement. Fixed chassis: The main fixed structure is a device that is placed on the carriage and other parts are placed on it. /p>

️ ️ Movable chassis:

This chassis is mounted on a vertical axis that is placed on a fixed chassis and can rotate around the axis up to 360 degrees. All loading devices and equipment are located on this chassis.

️ ️ Loading equipment:

This equipment includes the mast, cup arm, cup and machinery, all of which are mounted on a moving chassis.

• Mast: is one of the key parts of the shovel and is a rod that is connected to the chassis and It is angled towards the front of the car. In the upper part of the mast, there is a grooved pulley on which the lifting cable of the box passes.
The connection of the mast to the chassis body is hinged and the mast can move up and down and is fixed in the desired position by special cables. be kept.

• Cup arm: It is connected to the cup on one side and is hinged to the mast on the other side. Under the arm there are teeth that allow the arm to move forward and backward, which is the basis of penetrating the working chest. The chest arm can also move up and down around its connection to the mast. This is done by changing the length of the lifting cable.

• Cup (or chest or spade):
which is connected to the end of the arm and is placed in direct contact with the work chest. The edge of the cup is equipped with replaceable nails, which makes it easy to penetrate. Under the cup, there is a valve that is opened with the help of a special cable when the shovel is in the unloading position, and the water inside is emptied. It is obvious that there is a coordination of power and capacity between each part of the machine, as The material and weight of the cup depends on the type of material used.
To work in coal, the cups are lighter and the shape and edge of their nails are made according to this work.

⏬ Benefits of Shaol ⏬

1- Guiding the cup is simple.
2- It loads from bottom to top and vice versa.
3- Evacuation is done without moving the chassis and only by rotating the mast and the chamber.
4- Accepts stone with large dimensions.
5- It is resistant to stone walls due to its size and strength.
6- It is also established on loose surfaces.

Marjan Momennejad

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