Double stage ore crusher

Ore Introduction: Ore refers to a mineral aggregate from which useful components can be extracted or which has certain exploitable properties. It can be divided into metallic minerals and non-metallic minerals. The unit content of useful components (elements or minerals) in ore is called ore grade. Precious metal ores such as gold and platinum are expressed in grams per ton, while other ores are commonly expressed as percentages. The commonly used ore grade is used to measure the quality of ore ..

Introduction to Double Stage Ore Crusher
At present, the easily selectable iron ore resources in China are decreasing day by day. The reality is that there are more poor ores and fewer rich ores, and the ore composition is relatively complex. The fine particle size of the ore embedding has caused certain difficulties in mineral processing, directly leading to an increase in iron ore production costs and a reduction in profit margins. Only by improving the efficiency of mineral processing and adopting new technologies, equipment, and processes for mineral processing production can we effectively increase the economic profits of the mining industry.
Through thorough investigation and research of mines and beneficiation plants by relevant experts, as well as practical experience in the crushing industry for nearly thirty years, Hongtong Mechanical Engineering technicians have successfully applied our patented product, the two-stage non screened bottom crusher, invented and manufactured by our company, to the pre selection process of mines. This enables the crushing and fine crushing of ores to be completed in one machine, meeting the particle size and fineness requirements for ore pre selection.Two sets of rotors are connected in series inside the chamber of the 2-in-1 fine crusherAfter the block shaped ore enters the machine cavity, it is first broken (medium broken) by the upper rotor, and immediately subjected to secondary impact grinding (fine crushing) by the rapidly rotating lower rotor hammer head. The materials inside the cavity collide and rub against each other at high speed in reverse, achieving the effect of hammer powder and material powder, allowing the gangue minerals and useful mineral aggregates to fully "dissociate". andThere is no sieve bottom at the discharge port of the machine, and fine materials are directly discharged, reducing the repeated crushing of fine materials caused by the clogging of the sieve bottom of traditional models, ineffective wear of the hammer head lining plate, and no high power consumption phenomenonThe machine is outThe particle size is below 3mm, with about 50% of the particles being 0.5-0.075mm (35-200 mesh), 35% being 0.6-1.2mm, and 15% being 1.3-3mmThe particle size distribution range is wide and in powder form, which is particularly suitable for pre selection of iron ore. It can be pre enriched and tailings thrown in advance during mining operations, reducing the amount and particle size of coarse concentrate entering the mill, improving the grade of coarse concentrate, and creating favorable conditions for the next magnetic separation and selection process.
The two in one ore crusher plays an important role in the pre selection and sorting of poor iron ore, truly embodying the scientific concept of "early picking, early discarding, and rich selection of poor ore" in mineral processing. It improves the grinding system capacity of poor iron ore, reduces tailings transportation costs, improves the technical and economic indicators of mineral processing, saves energy and reduces consumption, and opens up a practical and feasible new path for the development and utilization of poor iron ore resources. （Click to view more information about two-stage crushers）

Double stage ore crusher picture

Detail display of ore crusher

Double stage ore crusher video

Double stage ore crusher trial video

Double stage ore crusher is suitable for materials

coal gangue	coal	coal cinder	slag
shale	limestone	iron ore	slag

The two-stage ore crusher can be used to crush various materials, including limestone, river pebbles, iron ore, potassium feldspar, talc, marble, dolomite, fluorite, lime, activated white clay, calcite, shale, coal gangue slag, coal gangue, construction waste, yellow skin slag, activated carbon, bentonite, kaolin, cement, phosphate rock, refractory materials, insulation materials, coal coke, coal powder, carbon black, clay, bone powder, titanium dioxide, iron oxide, gypsum, glass, manganese ore, titanium ore, copper ore, chromium ore, and more than 300 high humidity and high hardness materials in the construction industry.

Double stage ore crusher structure

Structural diagram and wear-resistant hammer head diagram of two-stage ore crusher


Structure diagram and hammer image of hammer type two-stage ore crusher

1. The casing consists of an upper body, a rear upper cover, a left side wall, and a right side wall, which are connected together by bolts. The upper part has a feeding port, and a high manganese steel lining plate is embedded inside, which can be replaced after wear. The leakage of dust between the casing and the shaft is very serious, and a shaft seal is installed to prevent dust leakage. The lower part of the casing is directly placed on a concrete foundation and fixed with anchor bolts. In order to facilitate maintenance, adjustment, and replacement of the grate, there are inspection holes on both the front and rear sides of the lower body. For the convenience of maintenance and replacement of the hammer head, there are also symmetrical inspection holes on both sides of the wall.
2. The rotor consists of a main shaft, a disc, and a pin shaft. The disc has 6 evenly distributed pin holes, and 6-8 hammer heads are suspended by the pin shaft. To prevent axial movement of the disc and hammer. Both ends of the pin shaft are fixed with locking nuts. The rotor is supported on two rolling bearings. In addition, in order to store a certain amount of kinetic energy during the movement of the rotor, avoid excessive speed loss of the hammer head when crushing large materials, and reduce the peak load of the motor, a flywheel is also installed at one end of the main shaft.
3. The spindle is the main component that supports the rotor and bears the impact force. Therefore, it is required that its material has high toughness and strength. Usually, the cross-section is circular and connected to other parts with flat keys.
4. There are two pieces of the striking board, folded in shape. One can be adjusted, and the other is fixed. One of the adjustments relies on the screw device installed on the box.
5. The hammer head is the main working component. Its quality, shape, and material have a significant impact on the production capacity of Wanhua ore crusher. Therefore, choose the appropriate hammer quality based on different feed sizes. The hammer head is made of alloy casting and has a lifespan of more than three times that of a typical manganese steel hammer head.

Working principle of two-stage ore crusher

The motor of the two-stage ore crusher drives the rotor to rotate at high speed inside the crushing chamber. The material is fed into the machine from the upper feeding port, and is crushed by the impact, shearing, and grinding of a high-speed moving hammer. The equipment can adjust the gap between the ribs according to user requirements, change the discharge particle size, and meet the different needs of different users. The high-speed rotating hammer body collides with the material surface to crush the material. It has the characteristics of simple structure, high crushing ratio, and high production efficiency, and can be crushed in both dry and wet forms. The main working component of the machine is a rotor with a hammer (also known as a hammer head). The rotor consists of a main shaft, a disc, a pin shaft, and a hammer. The electric motor drives the rotor to rotate at high speed inside the crushing chamber. The material is fed into the crushing chamber from the upper feeding port and is crushed by the impact, shearing, and grinding of a high-speed moving hammer. At the lower part of the rotor, there is a sieve plate. Stone particles smaller than the sieve hole size in the crushed material are discharged through the sieve plate, while coarse particles larger than the sieve hole size are retained on the sieve plate and continue to be hit and ground by the hammer. Finally, they are discharged outside the machine through the sieve plate.

Production site of ore crusher

Production site of ore crusher


Production site of ore crusher

Technical parameters of two-stage ore crusher

Specification Model	Feed particle size	discharge particle size	production capacity	Material moisture content	Motor power
SCF600×400	≤200mm	≤3mm (Approximately 2mm or less) More than 85%	10-15t/h	＜25%	18.5+18.5(15)kw
SCF600x600	≤300mm		20-25t/h		22+22(18.5)Kw
SCF800x600	≤400mm		40-50t/h		45+45(37)kw
SCF800x800	≤450mm		50-60t/h		45+55(45)kw
SCF1000x800	≤500mm		70-80t/h		55+75(55)kw
SCF1000x1000	≤550mm		90-100t/h		90+90(75)kw

Note: The equipment model parameters are constantly being improved. If you cannot find the required model in the parameter table, you can contact us directly. Our technicians will configure the equipment that best suits your production needs and site requirements according to your requirements.

双级矿石粉碎机优势
1. Double rotor two-stage crushing, with high output and fine discharge particle size;
2. Without a sieve bottom and high humidity materials, it will never clog;
3. Double directional gap adjustment of hammer head and lining plate, controlling the particle size of the discharge at any time;
4. Double stage dual flying wheels, smooth operation with high inertia, saving electricity;
5. Centralized lubrication system, timely lubrication without stopping, convenient and fast;
6. Hydraulic opening and closing machine casing saves time and labor in hammer replacement and maintenance.

Shipping picture of two-stage ore crusher

Small ore crusher sent to Suzhou, Jiangsu（Click to view more shipping images）


The ore crusher with large feed inlet is sent to Guang'an, Sichuan（Click to view more shipping images）