SU481313A1 - Grinding installation - Google Patents

Description

The invention relates to vibratory plants for the thin grinding of powders and can be applied in the chemical, pharmaceutical industry, powder metallurgy. The known grinding installation contains a noMOJHiHyra grinding chamber, a vibrator, a catcher, connecting pipes and an air duct. The aim of the invention is to increase plant capacity. For this, the grinding chamber is made with an additional bottom, and the spaces in between it and the main bottom are connected to the air duct and the working volume of the chamber; the additional bottom can be made multi-layered; In FIG. 1 shows the proposed installation; in fig. 2 - additional multi-layered stepped bottom, an embodiment. The installation consists of a support frame 1, a spring 2, a horizontal housing chamber 3 driven in circular oscillations by a vibrator 4. An additional bottom 5 is located in the lower part of chamber 3. 1 A curved line between the case and an additional bottom is connected to the chamber space its bottom. In the upper part of the curvilinear cavity is provided with a duct, CONSTANT. IM from the pipe 6 and the pipe 7 connected to the catcher 8, which is connected by a pipe 9 with the exhaust pipe 10 of the grinding chamber. The fine material discharged into the trap 1 is poured into the collector 11. The airflow under the layer to the larger solid is discharged. For more, the bottom is filled with a multi-step step (see Fig. 2). I Installation works as follows. When switching on the pibration, the grinding load together with the ground material comes in a circular movement in the direction opposite to the direction of rotation of the vibrator shaft. In this case, the direction of rotation is chosen so that the grinding load will drop down through the additional floor in the downward direction. As a result of the collision of the grinding bodies, the material between them is crushed. the role of the piston, which pushes the air above it and sucks the air under the layer behind the bruins through a curvilinear cavity formed by an additional bottom. When moving the layer of loading down from: for its greater porosity BO3ajoc fc / yzt-. Roots through the holes are mixed in a simple way over the loading load, and at the same time captures fine particles of crushed material. Many, -; multiple repetition of the process leads to; air circulation through grinding: a-. measure in pipe 10, rub

measure to the pipe Yu, through pipeline 9; to the catcher 8 and then to pipeline 7 and pipe 1 to the curvilinear cavity. Blown by air melkodnspers: on the fraction is deposited in the catcher S and collected in the collection 11. The proposed location of the additional bottom with the corresponding direction is a lot of blockage of the lower exit from iKpHBOjfH {(eHHO HOJiOCHt.t.). &; / -. unobstructed, air supply in

 the lower part of the chamber and intensifies 1 process of removal of the fine fractions of the material.

As a catcher, any filters with low resistance can be used. The installation can operate in continuous download mode. Continuous elimination of small particles prevents the formation of scrashe-closures, and allows for the production of finely divided, narrow fractional composition.

The design has the property of self-regulation, i.e., an increase in the content of the fine fraction leads to an increase in the suction of air under the layer and thus to an increase in the removal of fine fractions, i

Subject invention

201o Mill installation containing

grinding chamber with grinding bodies, vibrator, catcher, connecting pipelines and air duct, which means that with the aim of increasing

25 performance, the grinding chamber was taken / nen with an additional bottom, and the space and the main bottom are connected to the air duct and the working volume of the chamber,

302, Installation on. 1, about tl and h and y-

If so, the extra bottom has done a lot of lh offHbLM step; m.

1