As the key material for infrastructure, natural stones are generally large and not suitable for construction, so we need suitable equipment for crushing the stones into small sizes or changing their shape.
At present, the equipment used in the stone crusher plant is divided into fixed stone crusher machines and mobile or portable stone crusher machines. Based on this, two types of crushers are developed, namely semi-mobile or semi-portable stone crusher machines and semi-fixed stone crusher machines.
Mobile (portable) stone crusher machines, also called mobile or portable crushing plant, are generally composed of crushers (jaw crusher machine, impact rock crusher, hammer crusher, cone crusher machine, roll crusher machine), screening machine, feeder, conveyor, control system, etc.
Combining primary crushing, secondary crushing and sand making into one, the mobile crushing plant adopts self-driving method so that the components can be fixed on a whole frame. It moves by crawler or tire type track to crush the materials in a mobile manner.
The feeder feeds the stone into the crushing chamber. After being crushed and sieved, the qualified finished products are transported to the finished product warehouse, and unqualified can be crushed again.
Because it is a Trinity equipment, and the continuous transportation equipment connected is belt conveyors, the crawler type mobile crushers are suitable for large-scale open mining and large-scale and continuous mining processes.
The semi-mobile stone crusher machines are also called semi-portable stone crusher machines. It is to place the body in the appropriate working level in the open pit. With the advancement of the working steps, it can be pulled and transferred by a crawler truck or other traction equipment with its whole set configurable machines.
The most typical feature of semi-mobile crushing stations is that they are connected to the concrete-free foundation. Their service life ranges from a few months to several years, and the migration time usually is less than 48 hours.
The semi-mobile stone crusher is usually placed on the working slope, and the transport distance should be less than 3 km. When the mining steps extend to the outside of the reasonable transport distance and climbing height of the vehicle, the next shift should be performed.
From the perspective of the foundation, its crushing frame has a strong connection with the ground (the bedrock can be connected by anchor piles, and concrete foundation can be used in the loose area).
From the perspective of the position of the layout, it is generally fixed on the working slope to minimize the frequency of movement and improve the service life, especially for rock crushing and transportation.
When the semi-fixed stone crusher is moved, only the body of the device that is bolted to the foundation can be disassembled and moved for reuse, and the foundation buried below the surface is discarded.
The fixed crusher machines are usually arranged outside the boundary of the stope, or placed in the interior of the stope and arranged in conjunction with the chute, which is not affected by the advancement and deepening of the stope. It has a permanently fixed foundation connection with the ground.
The feeding method is diversified. The automobile can directly discharge the materials, or the buffer silo can be set for feeding through the ore-mining device. The fixed crusher is generally in the crushing workshop, and has the same life as the mine.
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