Roller ball press is a kind of equipment for pressing powdery materials into balls. Ball press is widely used. It can press the following materials, such as waste aluminum, activated carbon, alumina, bauxite, caustic soda, charcoal, clay, coke, coal, cryolite, fertilizer, plastic, limestone, pigment, urea and potassium salt, in order to reduce dust and control bulk density.
There are two kinds of materials for the roller skin of the ball press, one is 65 Mn, and the other is forged 9 Cr 2 Mo. Among them, 65 manganese roll skin was carburized. After carburizing heat treatment, the ability of bearing wear, alternating contact stress and impact load is increased, and the surface hardness, wear resistance, contact fatigue strength and corrosion resistance of the roll skin are greatly improved.
Composition of roller press
1. In the feeding part, it is mainly to realize quantitative feeding to ensure that materials enter the roller evenly. The spiral feeding device is driven by an electromagnetic speed-regulating motor, and rotates through a pulley and a worm reducer to press the pressed material into the main feed inlet. Due to the constant torque characteristic of the electromagnetic speed regulating motor, when the pressure of the screw feeder is equal to the material required by the main machine,
A constant feed pressure can be maintained to stabilize the particle quality. If the feeding amount is too large, the electric overload of the feeding device will occur, and if the feeding amount is too small, particles will not be formed. Therefore, skilled operation technology is an important condition to ensure the normal work of the pill press.
2. In the transmission part, the main transmission system is motor-V-belt-reducer-open gear-roller. The main engine is powered by electromagnetic speed regulating motor, which is transmitted to the driving shaft through pulley and cylindrical gear reducer. The driving shaft and the driven shaft run synchronously through the open gear. There is a hydraulic device behind the passive bearing seat. The hydraulic protection device is a hydraulic pump, which pumps high-pressure oil into the hydraulic cylinder to make the piston move axially. Front part of piston rod
3. The molding part mainly refers to the main machine part, and the core part is the roller. When the feed between the two rollers is too much or enters the metal block, the piston rod of the hydraulic cylinder is overloaded, the hydraulic pump will stop, the buffer pressure of the accumulator will change, the overflow valve will open to return oil, and the piston rod will shift to increase the gap between the rollers, so that the system pressure can be restored to normal and the rollers can be protected from damage. The machine can adjust the pressure according to the requirements of the ball pressing density, and the production is flexible and flexible.
Please refer to Baidu Encyclopedia-Ball Press for the above contents.