SU1488029A2 - Pneumatic separator for loose materials - Google Patents

Abstract

This invention relates to a technique for pneumatic separation of bulk materials and can be used in forestry and agriculture. The purpose of the invention is to increase the separation efficiency by optimizing the aerodynamic regime in the pneumo-separating channel. The material to be separated is injected along the ascending trajectory into the pneumo-separating duct 4, where air flow is created by means of the fan 7. Round plates fixed with the same gap one relative to the other and at an acute angle to the axis of the channel 4 on horizontal shafts mounted symmetrically relative to the vertical axis of the device so that they can rotate in opposite directions, turbulize the air flow and align it over the cross section of the channel 4. Under the action of the air flow light impurities are carried away into the sediment chamber 6, and the seeds are removed from the bottom of channel 4. 5 Il.

Description

The invention relates to the technique of pneumatic separation of bulk material, can be used in forestry and agriculture for cleaning and sorting seeds and is an improvement of the device according to the author. No. 1426664.

The purpose of the invention is to increase the separation efficiency by optimizing the aerodynamic regime in the pneumo-separating channel.

Figure 1 presents the diagram of the pneumocephalic device, a general view; figure 2 is a view of And in figure 1, fig.Z - turbulizer, axonometric; 4 is a plot of the speeds of the pneumatic flow for a known pneumo-separating device; FIG. 3 is the same for the proposed pneumo-separating device.

The pneumatic separator includes a hopper 1 and a feeder 2, communicating with window 3 with a vertical pneumatic separating channel 4. At the lower edge of the window, a guide chute 5 is hinged. The upper part of channel 4 is connected to the sedimentary chamber 6 and the fan 7. At the lower part of the pneumatic separator channel 4 is equipped with a turbulator 8, which is two horizontal shafts 9, on which round plates 10 are fixed with an equal clearance relative to each other and at an acute angle to the axis of the pneumo-balancing channel 4. The shaft 9 is arranged symmetrically with respect to the vertical axis of the pneumatic separation channel with the possibility of rotation in opposite directions. For wide pneumatic separating channels, it is possible to install more shafts with plates (batteries), but. in all cases their number

0

must be even and the arrangement is symmetrical.

The device works as follows.

The material to be separated is poured into the hopper 1, from where a feeder 2 is thrown through a window 3 along an upward trajectory provided by a guide chute 5, a vapor-collecting channel 4, where air flow is created by means of a fan 7. Plates 10 rigidly mounted on shafts 9 rotating in opposite directions turbulize the flow, carry out an additional inflow to the walls of channel 4, optimizing the aerodynamic mode of the pneumatic flow.

Thus, the material introduced into the channel 4 is affected by an equalized air flow, under which light impurities are carried into the 25 sediment chamber 6, and the full-grained seeds overcome the resistance of the air medium and exit from the bottom of the pneumo-steamar channel 4.

Claims (1)

30 claims Pneumo-separating device for separating bulk materials according to auth.St. No. 1426664, characterized in that, in order to increase separation efficiency by optimizing the aerodynamic regime in the pneumatic separating channel, it is equipped with an additional horizontal shaft with a set of round plates made identical to the main one, both shafts mounted symmetrically relative to the vertical axis of the device and rotatably mounted opposite sides. Lid A iPue. Yu