Gyratory crusher used on mining, metallury and cement plant

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Gyratory crushers are main equipments for coarse crushing ores and rocks in mining, forging, constructing, chemical industry and power stations. They have high crushing rate, high output rate and their products have even grains.

 

NHI produces three series of gyratory crushers. They are PXZ(heavy), PXQ(light), PXF(introduced). PXZ series is used for crushing material of high or intermediate hardness and PXQ series is used for crushing material of intermediate or low hardness.PXF is mainly used as coarse crushing equipments for large open mines and ore dressing plants.

 

NHI is the birth place of Chinese first gyratory crusher and the professional manufacturer for designing, testing and manufacturing of gyratory crusher, which has more than 60 years history. These products are welcomed by customers for their variety of models, advanced design, reliable capacity, stable running and low consumption of energy.

 

In 1987, PXQ1200 gyratory crusher that developed and manufactured by our company won the third prize of National Science and Technology Progress Award. In 1994, PXZ1417 gyratory crusher that developed and manufactured by our company won the third prize of National Science and Technology Progress Award.

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Q:What kind of dust removal equipment should be chosen for the dust removal of the crusher?
The material is broken before drying and grinding, because the broken material in the drying process increases the heating area, so it can accelerate the drying process of materials. In addition, the efficiency of the crusher is much higher than that of the powder mill, so the material is broken before grinding so as to reduce the particle size of the grinding material, greatly improve the grinding efficiency, and also reduce the consumption of electricity. At present, small cement plant is broken up, including limestone, coal, clinker and so on. The commonly used crushing equipments are frontal crusher, hammer crusher, counter crusher and roller crusher.
Q:What kind of powder does ferroalloy crusher have?
You can try the cone crusher, for different ferroalloy varieties, due to brittleness is not the same, for different crushing principle
Q:What is a crusher? How many kinds of crushers are there? What are the uses of a crusher? How to choose a crusher manufacturer?
The scope of various types of crusher, jaw crusher and cone crusher is suitable for crushing hard rock blocks (compressive strength in 150-250Mpa); gyratory crusher is suitable for crushing hard (compressive strength is more than 100MPA) and medium hardness (compressive strength at about 100MPA) rock blocks. The hammer crusher is suitable for crushing brittle rock of medium hardness (the ultimate compressive strength is below 100MPA); the roller crusher is suitable for crushing medium hardness toughness rock (the ultimate compressive strength is about 70MPA). In actual selection, the following factors should be considered in light of specific circumstances:
Q:What are the working principles of the three crushers, such as jaw break, hammer break and counter break, and what are their differences?
Hammer crusher is mainly by impact crushing material. The crushing process is roughly like this, the material into the crushing machine, subjected to high-speed rotary impact hammer and broken, broken material, to obtain kinetic energy from the head office, from the high speed toward the frame body plate, screen material, at the same time against each other had been repeatedly broken, less than the sieve gap between the material discharged from the gap, individual larger material, on the screen again by hammer impact, grinding, extrusion and broken, hammer material is extruded from the gap. In order to get the required size of the products.
Q:What kinds of crushers are there?
Jaw crusherIs the use of two jaw plate of material extrusion and bending, crusher crushing or crushing various hardness materials. The crushing mechanism comprises a fixed jaw and a movable jaw plate, when the two jaw plate close to the material that is being broken, when the two jaw left less than the discharge outlet at the bottom of the block exhausted. It's broken movement is intermittent. This crusher for a simple structure, reliable operation and can crush hard material advantages and is widely used in mineral processing, building materials, silicate and ceramic industries.In 1980s twenty, the large jaw crushing 800 tons per hour of material crusher feed size has reached about 1800 mm. The jaw type crushing machine has two kinds of commonly used double elbow plate and single brackets. The movable jaw only for simple swing arc at work, so called simple swing jaw crusher; the latter in the swing arc also moves up and down, so called complex swing jaw crusher.In addition, to wear to meet the different requirements of nesting size and compensation jaw plate, also added a nesting population adjustment device, usually between elbow plate seat and the rear frame add shim or wedge iron. But in order to avoid replacing the broken parts of production, can also be achieved by insurance and adjustment hydraulic device. Some jaw crusher is directly driven by hydraulic drive movable jaw plate to complete the crushing action material. These two types of jaw crusher with hydraulic transmission device, often referred to as hydraulic jaw crusher.
Q:How much is a mobile crusher set?
The price is different for different models
Q:What is the hammer piece of the crusher?
Thereby, the production efficiency is improved, the process is convenient to manufacture, the process is simple, and the cost is low. The utility model can be widely used for various types of hammer mills at home and abroad.
Q:Crusher knife and spiral knife which is good
The reason for the screw knife is to reduce the number of bits at the same time, which means reducing the crushing force and saving the power of the motor!
Q:What about shock and blockage in hammer crusher?
In view of the cause of the machine vibration of hammer crusher, the following methods can be used:Replace the hammer; replacement pin; remove the hammer, hammer to choose according to the weight, total weight of each hammer shaft hammer and hammer shaft relative to the total weight of the hammer is equal to the static balance to achieve the requirements; welding repair or replacement; fastening bolt.
Q:Why is the crusher easy to wear the stripper plate?
The surface of the liner is in a complex state of stress, and the extruded ore causes great pressure on the local surface of the lining plate, producing a chisel, cutting and impact on the lining plate, and the main form of wear is the extrusion pit.

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