Cement mill principle and application
This mill is the center drive, center discharge three positions mill. 1250kW of the main motor 1 by the rubber block coupling,gold milling machine ZL314 reducer, the middle drive shaft, hollow shaft driver of rigid couplings and mill outlet mill cylinder 8 17.7r/min speed rotation. Cylinder at both ends of the hollow shaft supported on the main bearing 7 and 9. In the cylinder body, enhance the double diaphragm plate installed between the two positions, two, three positions between the installation of the single-layer diaphragm plate. One, two positions with bolts solid mounted ladder liner inlay puzzle within three positions of small corrugated liner.
Material from the feed device 10 feed mill after three chambers grinding elliptical holes on the drive to take over unloading into and out of the feeding device, through the sieve analysis finished by the transportation equipment shipped to the material library, coarse and broken grinding media and other debris from the discharge screen the flanking export unloaded.
Set the mill grinding within the sprinkler spray of cooling water through the mill device 11, the spray pipe 18 is injected into the mill, in order to reduce the grinding temperature, to prevent dehydration of gypsum false condensate,coal pulverizer manufacturer sticky ball to plug compartment plate grate holes and discharge grate holes, to achieve the purpose of cement product quality.
The main bearings of the mill in addition to has a lubrication system, and also set up a dedicated water cooling device to reduce the main bearing temperature to ensure the normal operation.
The mill also set the auxiliary gear, auxiliary drive, the speed of the mill body 0.2r/min slow rotation.
In order to make the parts and free access to the cylinder, and ease of maintenance and to ensure the cylinder strength, and called the man hole size should be appropriate. If too large a tube cross sectional area has weakened too much,concrete recycling equipment so that the cylinder increased stress. Manhole size, the long axis of 500 ~~ 800mm, the short axis of 300 ~ 400mm, the shape of the manhole with a large rounded corners rectangle or ellipse, and parallel to the cylinder longitudinal axis, so that the cylinder cross sectional area of ??weakened less .
Manhole at reinforcing measures: a riveting cast steel frame structure with flange attached to the manhole on the rivet pitch manhole distant, less impact stress concentration. The mill door cover type. Another is in the hole reinforcing layer of steel, and then with open manholes, and application of inner-lift manhole covers. The manhole cover itself is a special liner with hanging hole, manhole around a few pieces of the lining is often non-standard structure, so that the liner types 2 or 3 kinds, which is not conducive to the manufacture and spare parts reserves economy, but also because of its working surface is different from the other standard liner, which will affect the consistency of the grinding motion.
The manhole is preferable to the opening of the cold method. Using hot-melt cutting,glass crusher machine the machining allowance must be set aside under the plate thickness, the allowance should be increased with the increase of plate thickness, generally set aside an allowance of 10 ~ 25mm, the final machining process is a precision milling or fine grinding wheel is. Otherwise, the process of using irreparable cracks along the manhole.
The mill door (also known as the manhole cover) is a closed hole, convenient loading and unloading, and fixed firmly.