TH52A - Low Pressure Drop, Pulverizwr Throat - Google Patents

Abstract

Grinding machines used to grind hard objects include A curvature that extends the radius of the inner and outer walls of the outlet inlet and the outer wall of the outlet of the neck also have a radius-expanding curvature. This is in addition to standard engineering practice and a pan with a pan-air curve on the top of the pan. As a result The velocity of the air flowing from the inlet of the throat to the A The bottom of the neck gradually And a gradual velocity reduction of the air flowing from the center of the neck to the outlet to reduce the backflow of the object. Hard again through the throat Reduces wear and tear on the surface of the neck and reduces the air pressure loss present in the grinder.

Claims (3)

1. In combination with a hard object grinder with a frame with an outlet on the top of the machine. So that the crushed object rest Is in the conductive air for conducting air and For objects to grind The grinding ring located at the bottom of the grinder. The part used for rotating the grinding ring along the vertical axis in the center of the machine. Several grinding parts that work together in the grinding ring. Objects inserted into this machine Conducted air passes through circular plenum (plemun) located under the spherical apace of the wall. Both internally and externally, the neck shows contact with the plenum, and releases the air used as a conductor in a manner close to the grinding ring. The pan installed in the neck section at equal horizontal angles and this pan will Divide the neck alley into a passageway with a circular shape in various ways. The invention of this new karma consists of (a) renovating the inner walls. And the outer wall of the air intake And the outer wall of the mouth Air port Which all increased the radius of curvature until Higher than the standard of engineering practice in that the ratio between the radius of the curvature of the three walls to the width along the The radius of the lead is greater than 0.5 and less than 1.5 (b). Modifications of the impeller, each of which have been shaped so that a thin layer of air is present, in order to have an effect on the velocity of the air flowing from mouth The inlet path enters the middle of the weaving section gradually and reduces the air velocity. Flow from the center of the next to the outlet throat gradually, in order to (i) distribute the solid material down the neck. (Ii) minimizes abrasion on the surrounding surface of the outlet neck, and (iii) minimizes the pressure loss of air inside the grinder. 2. Grinder revised according to claim 1, where the ratio between the length of the air layer above the top of the impeller The minimum clearance between the propellers is greater than 1.0 and less than 5.0. 3. Grinder renovated according to claim 1, where the air inlet, which is the carrier, is in the line of contact with the grinding ring (3 claims, 1 face, 0 photos).