SU1346243A1 - Installation for grinding - Google Patents

Abstract

The invention relates to grinding installations. The purpose of the invention is to improve the quality of the finished product, to produce 2 volumes and to reduce the size of the installation. The installation includes a drum mill with a discharge axle 7, a loading device 2. placed inside the discharge axle 7, a classifier of the source material. 1a in the form of a perforated rotational surface 3, inside of which a liquid phase feed pipe 10 passes. The holes 5 of the perforation of the surface of rotation 3 increase, and the outlet openings 11 of the conduit 10 decrease as the shadow of the loading device 2 is removed. Small particles of the original material are sifted through the holes 5 b. To the unloading trunnion 7 and quickly from the mill due to the higher flow rate of the liquid phase in this zone. 1 silt J (L with 4 C5 with

Description

The invention relates to installations for grinding materials and can be used in the construction, chemical, metallurgical and other industries.

The purpose of the invention is to improve the quality of the finished product, productivity and reduction in overall dimensions.

The drawing shows the grinding installation, obsh, iy view.

above the discharge point 7. The largest particles of the source material, not sifted through the holes 5 of the surface 3, return to the drum with 1 blades 12 on the inner surface of the journal 9. Large particles of the source material are exposed to the melyusha, their bodies are from the center 9 and, the passage the entire length of the drum 1 is unloaded through the openings 8 and the unloading trunnion 7. The fine particles of the source material under the Installation have a drum 1 of the mill, 10 are subject to the action of the melyusha, their bodies are closer

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load device 2, source material classifier, made in the form of perforated surface 3 of rotation, mounted inside the drum 1 of the mill on shock absorbers 4, which can be made of spring steel, synthetic materials or rubber. The size of the holes 5 of the perforation of the surface 3 of the hole increases as it moves away from the loading device 2. On the inner side, the rotation surface 3 has spiral vanes 6. The loading device 2 is located inside the discharge shaft 7 of the mill. Between the mill drum 1 and the rotation surface 3 of the source material classifier, there are openings 8 for discharging the material. Drum 1. Mills may have a trunnion 9 for loading grinding media. Inside the classifier of the source material, a pipeline 10 passes along it for supplying a liquid phase to the mill, which is necessary for grinding (water). The outlet openings 11 of the pipeline 10 y. Shrink as they move away from the charging device 2. On the inner surface of the trunnion 9 there are spiral vanes 12.

The installation works as follows.

The source material is fed by the loading device 2 into the classifier onto the perforated surface 3 of rotation, is moved along it by the spiral blades 6 and sifted through the perforation holes 5, which is facilitated by the oscillation of the classifier due to its attachment to the drum 1 through the shock absorbers 4. Most fine particles of the source material are sieved closer to the discharge point 7, large particles farther from it.

to the unloading trunnion 7 and pass a smaller way before unloading. Reducing the time of grinding fine particles also contributes to a greater consumption of the liquid phase at the discharge point 7, which prevents overgrinding of fine material. The finished product is more homogeneous, the rapid removal of soft particles makes it possible to increase the amount of material loaded into the plant, which increases its productivity. The placement of the classifier source material inside the drum 1 reduces the overall dimensions of the installation.

The invention allows improving the quality of the finished product, increasing the productivity of the installation, reducing its overall dimensions.

Claims (1)

Invention Formula A grinding plant comprising a loading device 30, a raw material classifier and a drum mill with an unloading trunnion, characterized in that, in order to improve the quality of the finished product, productivity and reduce overall dimensions, the installation is equipped with a pipeline with outlets for feeding the liquid phase, the loading the device is placed inside the discharge shaft of the mill, the classifier of the source material is fixed inside the drum of the mill by means of am.ortizers and is designed as a performer Rowan cone .mi spiral vanes on the inner surface of the cone, the base of which bolschoy directed toward loading, and feeding the liquid phase duct is arranged coaxially Reducing the size of the outlet 45 classifier, with the size of the holes 11 of the conduit 10, as the classifier moves away from the perforations, load device provides a larger size of the outlet of the pipeline liquid phase at the discharge point, respectively, decreases as udafy 7 mill and less its consumption further from the boot device. above the discharge point 7. The largest particles of the source material, not sifted through the holes 5 of the surface 3, return to the drum with 1 blades 12 on the inner surface of the journal 9. Large particles of the source material are exposed to the melyusha, their bodies are from the center 9 and, the passage of the entire length of the drum 1, is discharged through the holes 8 and the unloading axle 7. Fine particles of the starting material subformula of the invention A grinding plant comprising a loading device, a raw material classifier and a drum mill with an unloading trunnion, characterized in that, in order to improve the quality of the finished product, productivity and reduce overall dimensions, the installation is equipped with a pipeline with outlets for feeding the liquid phase, a loading device placed inside the discharge shaft of the mill, the classifier of the source material is fixed inside the drum of the mill by means of am.ortizers and made in the form of a perforator oval cone with spiral blades. on the inner surface of the cone, the larger base of which is directed towards the load side, and the liquid phase supply pipeline is located coaxially classifier, with the size of the holes