SU1142163A1 - Crusher - Google Patents

Abstract

A DISMEMBRATOR containing a cylindrical body with a vertical rotor located i in it with concentrically mounted rows of fingers, between which there are rows of grinding elements of the stator, executed in the form of plates, loading and unloading nozzles, in order to increase the yield of a given product fractions and protection of workers from wear, the plates are V-shaped, with one plate branch facing the center of the dismembrator installed radially, and the second branch, directed S to ne rifle, inclined at an angle of 120k to the vector of the linear velocity po (L torus).

Description

. f11 The invention relates to the grinding of conductive materials and can be used in building, chemical and other materials. A dismembrator is known, containing a cylindrical body with a vertical rotor located in it with concentrically mounted rows of fingers, between which are placed rows of crushing elements of the stator loading and unloading pipes G The disadvantage of this device is the low efficiency of the grinding process and the heterogeneity of the particle size distribution of the finished product. The closest k to the proposed is a dismembrator, containing a cylindrical body with a vertical rotorhk with a centrally mounted row of rows of jMeawy pins, which are arranged in the form of plates, loading and unloading nozzles t23. The disadvantage of this dsmberator is the low yield of the product of the specified fraction and the impossibility of protecting the working bodies against wear. The purpose of the invention is to increase the yield of the product fraction and the protection of workers from wear. This goal is achieved by the fact that in a dismembrator containing a cylindrical body with a vertical rotor located in it with ends of fingers set between which there are rows of grinding elements of the stator, made in the form of plates, loading and unloading nozzles, the plates are V-shaped , while one branch of the plates facing the center of the dismembrator is set radially, and the second branch is directed toward the periphery inclined at an angle of 120 ° to the velocity vector of the rotor. Figure 1 shows the dismembrator, a general view; figure 2 is a section aa in fig.t; figure 3 - node 1 in figure 2 in the increase. The dismembrator contains a cylindrical body 1, inside which the vertical rotor 2 and the stator 3 are mounted, on each side of which, respectively, fingers 4 and plates 5 are mounted along concentric rows of plates and plates 5. The plates 5 are V-shaped, with one branch of the plate 5 , facing the center of the dismembrator, is installed radially, and the second branch, directed to the periphery, is inclined at an angle to the vector of the linear velocity of the rotor. On the case, the central loading nozzle 6 and discharge nozzle 7 are fixed, 7. The principle of operation of the mill is as follows. The material particles are loaded through the nozzle 6 into the center of the dismembrator and are destroyed by the impact of the rotating rotor 2 with fingers 4 and are thrown onto the plates forming the separaodone grid and crushed again. The fine fraction under the action of the radial component of the controlled air flow is carried away between the Lattice Plates to the next step, and the large particles re-enter the destruction zone until they reach the necessary fineness and are not carried away to the next grinding step and further to the outlet 7. 1:. ,,. The execution of the V-shaped plates so that one branch facing the center of the dismembrator is set drastically, and the second one is directed toward the periphery and is tilted at an angle. 120k to the vector of the linear speed of the rotor, allows in the first case to provide a blow to the plates of the senarizing re; brushes at a right angle, since it is known that the main mass of particles flying off the rotor's fingers is directed to the vector of peripheral speed at an angle of 30 °. as a result of sticking of the material in the pocket of the V-shaped plate, which at the same time forms the lining layer, protecting the plate from the direct Impact with the particles of the material. The second branch of the plate, directed toward the periphery, is inclined at an angle to the linear velocity vector. Of the conditions for ensuring the maximum separation effect, since a decrease in the angle results in a breakthrough of the passage of large particles between the grid plates, since with a constant number of plates in the grid, the angle decreases. the distance between the plates increases, and as the angle increases, the distance between the plates

it becomes so small that the material will not have time to move out of the grinding zone, and the mill will choke.

The implementation of the V-shaped grating plates allows one to combine in one grinder both the impact grinding process and at the same time the separation process, as well as to protect

plates from intensive wear with comminuted material of lining layer

Regulating the air flow through the mill, you can get the output product of the necessary fineness and homogeneous composition.

Thus, the proposed dismembrator increases the yield of a given fraction and protects the working bodies from wear.

Claims (1)

’(5 7) DISMEMBRATOR, containing a cylindrical housing with I therein, with a vertical rotor with concentrically arranged rows of fingers, between which there are rows of grinding elements of the stator made in the form of plates, loading and unloading pipes, which differs in that, in order to increase the yield of the product of a given fraction and protect the working bodies from wear , the plates are V-shaped, with one branch of the plates facing the center of the dismounter installed radially, and the second branch directed to the periphery, inclined at an angle of 120 ° to the linear velocity vector of the rotor.