SU1567286A2 - Arrangement for sorting chips - Google Patents

Abstract

The invention relates to the sorting of chips and can be used at sawmills and other logging companies. The purpose of the invention is to increase the productivity of the device due to more uniform dispersion of chips over the surface of flooring 11, increasing the speed of movement of chips along flooring 11 and eliminating blockage of chips 12 between the flooring 11 and the cone-shaped flow distributor (PR) 8. In the box of the device are sieve 3 installed over them cone-shaped PR 8. With duct 1, an inertial oscillatory drive in the form of a drive shaft 4 is connected with eccentric weights (EG) 5 and 6 fixed to it. At least one of EG 5 designed as a blade. There is a visor 9 on the PR 8, on which radial guide strips are fastened on the bottom. Under PR 8, flooring 11 is installed, forming a gap with it 12. Floor 11 adjoins casing 14 with an air intake port 15. A fan (B) 17 is fixed to the casing 14, the discharge air line 18 of which is connected to the aperture 15, and its suction port 19 brought out. In this case, the B 17 is kinematically connected with the shaft 4. The chips enter the visor 9, distributed over its perimeter. Chip is affected by air flow from B 17 and EG 5. The overpressure from B 17 prevents the penetration of chips through the gap 12 under PR 8. 1 Il.

Description

The invention relates to flail sorting devices and can be used in sawmills, woodworking, pulp and paper and logging companies.

The aim of the invention is to increase the productivity of the device by more uniformly scattering chips over the surface of the flooring, increasing the speed of movement of the chips along the flooring and eliminating the clogging of the gap between the flooring and the subdistributor.

The drawing shows the proposed device, the lateral section. i

The device for sorting chips includes duct 1 mounted on base 2 or on hangers (not shown) with sieve shields 3 fixed inside it. Box 1 is connected to an inertial oscillating motion drive consisting of a drive shaft k with eccentric weights 5 fixed on it and 6, at least one of which (5) is in the form of a blade. The shaft 4 is kinematically connected with the drive motor 7. A cone-shaped flow distributor 8 with a visor 9 is installed above the screens 3. The radial guide bars 10 are fixed below the visor 9, and a floor 11 is installed below the flow distributor 8, forming a gap 12 with it in the placement area a visor 9, and the eccentric weight 5 is fixed on the shaft k opposite the gap 12. On the part of the distributor 8 devoid of the visor 8, the bead 13 is fixed. To the floor 11, along the perimeter of the gap 12, adjoins the casing 14 with an air inlet 15 equipped with the regulator 16 of its through passage section. Under the casing, a fan 17 is fixed, the discharge air line 18 of which is connected to the air intake opening 15 and its suction inlet 19 is led outside the device. The fan 17 is kinematically connected to the shaft C of the inertial drive. The loading area of the sorting device is separated from the environment by a dust cover 20. Each of the sieves 3 is provided with an adjacent discharge chute 21.

The device for chip sorting works as follows.

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The source chips to be sorted from a conveyor, from a cyclone, bunker or otherwise are fed from above onto a cone-shaped flow distributor 8. Under the action of gravity, gyration oscillations caused by rotation of eccentric weights 5 and 6 fixed to the drive shaft, and also conical shape of the flow distributor 8 chips enters the visor 9, distributed over its perimeter. The air flow generated by the fan 17 and the eccentric weight 5 rotating opposite the gap gap 12 is affected by the chips coming down from the visor 9. In addition, the overpressure created by the fan 17 in the cavity formed by the flow distributor and the floor prevents the chips from penetrating through the gap 12 under the flow distributor 8. The air flow evenly disperses the chips along the surface of the flooring 11, thus increasing the speed of the rational movement of the chips along the flooring 11. At the same time, the air flow rate is significantly evoskhodit chip rate with the cap 9, providing a quick retraction of its loading zone, eliminating clogging of the gap 12 and its possible downtime for this reason. The radial guide bars 10 fixed on the visor 9 in the zone of the slit gap 12 contribute to a better organization of the air flow in the radial direction. The presence of the regulator 16 permits the adjustment of the air flow parameters affecting the chips supplied for sorting. Similar to chipboard 11 is fed to sieves 3, vibrated by an inertial drive associated with them, divided into fractions corresponding to the sizes of perforation holes. The sorted chip fractions from each sieve 3 are diverted to discharge chutes 21 for further processing. A protective cover 20 covering the chip loading zone protects the surrounding environment from dusting.

Claims (1)

Invention Formula A device for sorting chips by author. St. No. 12 0 l68, characterized in that, in order to increase device performance 515672866 due to a more uniform dissipation-suction nozzle, while venni chips on the surface of the flooring, the accelerator is installed under the casing of the movement speed of the spacer chip and the kinematically connection and eliminating clogging of the chips inertial drive shaft, the gap between the flooring and the flow distribution of its discharge air duct by a divider, it is equipped with a fan connected to the air intake with the discharge air duct and the housing.