Henan-Zhongke - Model MB -Rod Mill

And it is mainly used for processing or crushing the feldspar, quartz, minerals and other raw materials, and it is also suitable for finely or secondarily crushing the various tough or brittle materials, such as grinding material, refractory material, cement, steel shot, pulverized slag, copper ore, iron ore, gold ore, concrete aggregate, bituminized aggregate. Now it is a most advanced high-efficient low consumption sand-maker in the world.

The machine is composed by feeding part, discharging part, rotation part and driving part (reducer, small driving gear, electric motor and electric control). The quill shaft adopts cast steel part and the liner is detachable.

The rotation big gearwheel is made by cast hobbling processing and the drum is equipped with wear-resistant liner, which has good wear-resistance. The machine is with stable and reliable working condition.

Moreover, according to different materials and discharging methods, there are dry ball mills and wet ball mills for choice.

The ball mill is horizontal cylindrical rotation device, driven by brim gearwheel. There are two chambers and grid. Material goes into the first chamber through the feeding inlet. Inside the first chamber, there are stage liners and ripple liners as well as steel balls.
The shell rotates so as to generate electricity, and this force brings ball to a certain height and then balls drop down by gravity, the impact is the grinding force to the material.?

After the primary grinding, materials go into the second chamber through segregate screen. In the second chamber, there are flat liners and steel ball, after the secondary grinding, material is discharged from the discharging. Then the whole grinding process end.

There are three types of rod mill:

1. tungsten tin and other rare metal ore gravity separation and magnetic separation plant, in order to prevent the harm caused by crushing, often using rod mill;
2. when using grinding ore process, if the first paragraph is from mm to 20~6 grinding to 3 ~ 4 mm, the rod milling for first stage grinding equipment, large production capacity, high efficiency. Because the rod to charge ratios of the certain weight with the weight of the ball bearing surface area is much smaller, so as the fine grinding, rod mill are lower than the productivity and efficiency of ball milling.
3. in some cases can replace the short head cone crusher crushing. When dealing with softer or less hard ore especially viscous ore), with rod milling 19-25 mm and 32 mm) of ore grinding to 6-10 mesh than with a short head cone crusher and the screen in a closed loop configuration is simple, the cost is low, and can make broken Kuang workshop dust simplified. For hard ore, with a short head cone crusher and sieve into a closed-circuit approach may be more economic. In the design of the study campaign by ball milling or choose rod mill, must according to the specific situation to develop case to be compared to determine. Rod mill is widely used in metal and nonmetal mines and water conservancy, building materials sector grinding all kinds of ore or rock.

1. Higher capability and more even discharging size. Adopted advanced technology of sand maker-rod mill by controlling the input or output materials; related to the user’s actual grinding materials, choosing an appropriate grinding medium, replaced the traditional surface contact to the linear contact . Therefore, its discharging size is more even, the capability is higher, suitable for various hardness of ore.( Moths hardness 5.5-12).
2. Adjustable fineness of limestone. Through simple adjustment, will change the discharging size ,and inside , has finesse control device and screening device, ensuring not over grinding and avoiding the unqualified product interfusing into end products.
3. Power saving. Compared with the old type equipment to save more than 40% of the power. More uniform product size, less coarse particles and slime. Compared the particle size characteristics of the rod mill products and the ball mill product, open rod mill product size characteristic curve and closed the ball milling was nearly the same.