CS242231B1 - Self-propelled rotary dryer of plein materials - Google Patents

Abstract

The dryer consists of a drying chamber surrounded by an insulating jacket and equipped with at least one rotor. The problem to be solved is a better use of the drying medium, which is achieved by the drying air coming to the plates from both their front sides and flowing between them in their transverse direction, which makes the drying more intensive and, with the self-propelled rotation of the rotor during operation, at the same time energy-efficient.

Description

242231

BACKGROUND OF THE INVENTION The present invention relates to a self-propelled rotary dryer of sheet materials consisting of a thermally insulated drying chamber provided with at least a front rotor provided with driving elements at its periphery. According to the state of the art, sheet materials, for example agglomerated wood, are dried in drying chambers or continuously on link conveyors in drying tunnels.

The drying tunnels occupy a large space as far as possible. Their articulated conveyors are complex, labor intensive and energy-intensive and maintenance-intensive. It is known to be a rotary drier where the dough is dried on the surface of the dryer rotor that rotates. The cylindrical surface of the rotor is made of solid material and the drying air flows around only one end face and flows between them in their longitudinal direction.

The essence of the invention is that the cylindrical surface of the dryer is not full but only formed from a truss structure. An advantage of the rotary drier according to the invention is that the drying air comes to the plates of both of their end faces and flows between them in their transverse direction, thereby making the drying more intense and not energy intensive with self-propelled turning of the rotor. . An example of an apparatus of the invention is shown in FIG. 1 showing a cross-section of the dryer in FIG. 2, which is a cross-sectional view of the location A-A.

The rotary drier according to the invention consists of a thermally insulated drying chamber surrounded by side walls 4, a circumferential housing 8 and a mounting and sealing cover 11 and of the rotor 1. On the side walls 4 at the point of overrunning the horizontal horizontal o-rotor 1 fans are installed with 5 air ducts. With free circular faces 14 and heaters 7. A rotor 1 made of a truss structure 2, circular solid faces 14, support rings 14 and a toothing 16 and provided with dividers 3, a rotor 1 is mounted on pulleys 17a provided with a drive and braking unit 18. The peripheral shell 8 has an inlet opening 10 and above the level of the axis 1 of the overflow duct 21 and is provided with sliding plates 12 and stops 13. Alternatively, the rotor 1 can be spatially divided by a partition 14a with a sealing cover 11 provided with side walls. curtains 11a.

Drying dies 21 are fed by the filling device 22 to the inlet port 9 and slid through the aperture 9 therethrough between the entrained molded frame 3 of the frame 1 rotating in stepper direction. The drive unit 18 is operative only when starting and initially turning the rotor 1 from the point of entry of the first beam 21 to the inlet opening 9 after it is moved to the point X, i. up to a half circumferential filling of the rotor 1. From position X of the first axis 21, the drive unit 18 is switched off. Lastly, the uneven weight filling of the rotor 1 by the plates 21 has the effect of rotating the rotor further without the direction of the arrow and driving the dried doughs 21 through the drying chamber to the outlet opening 10.

The rotor 1 is braked against uneven spontaneous rotation during the drying process and its regular stepping is ensured by the braking effect of the drive stage 18 of the pulse-regulation device and the determined drying mode. The shaped frame 3 bent on the outer periphery of the rotor 1 against the rotation of the rotor 1 retains the plate 21 on the rotor surface 1 until it is placed in the Y-side where it starts to slide out of the frame 3 and is the next frame 3 sliding along the sliding rails 12 up to their edge by gravity falls out of the outlet opening 10 onto the take-up device 23. In case the plate 21 does not fall out of spontaneous sliding strips 12, it protrudes the latch 13. The drive unit 18 is provided with a spring to rotate the rotor 1 through the end of the drying process and to completely empty and run the rotor 1 to eject all dried plates 21 from the rotor surface 1.

The dried doughs 21 pass through a drying space 19 where they are blown by the hot air 20 and dehydrated. The circulating drying air 20 is sucked through the air ducts 6 by the fans 5 from the inner rotor 1 of the rotor 1 and blown through the heaters 7 into the drying chamber 19 where both sides of the ducts 21 and 13 are flowing therethrough. the transverse direction of the interior of the rotor drying chamber 1.

The rotary drier according to the invention can be advantageously used mainly in the wood-processing industry and also in other sectors of the national economy.

Claims (3)

SUBJECT A self-propelled rotary drier of sheet materials, comprising a thermally insulated drying chamber equipped with at least one rotor provided with entrainment elements, characterized in that the entrainment element is a shaped split frame [3] formed of a lattice structure (2) of rotor surface (1) solid circular cells (14), the peripheral shell (8) of the drying space having a horizontal axis above the horizontal level) of the rotor (1j) BACKGROUND OF THE INVENTION (9) and below this axis the outlet (10) and is further provided with a sealing cover (11), sliding strips (12) and stops (13). 2. A self-propelled rotary drier according to claim 1, characterized in that the rotor (1) has a partition (14a). 3. The self-propelled rotary drier of sheet materials according to claim 1, characterized in that the sealing cover (11) is provided with side screens (11a).