RU114360U1 - DEVICE FOR DEHYDRATING SAW MATERIALS - Google Patents

Abstract

A device for dewatering lumber, comprising a rotating drum with a drive installed on the base, characterized in that partitions are mounted on the outer surface of the drum to accommodate lumber and hinged covers perforated with holes to hold the lumber on the outer surface of the drum.

Description

A device for dehydration of lumber can be used at enterprises of the woodworking industry for the purpose of dehydration of wood by centrifugal method.

A device for drying timber is known, including a drive, a rotating vertical transmission shaft, driving a platform having a rotation axis, on the periphery of which are mounted glasses for accommodating timber (Description of the utility model according to patent RU 76108 U1) [1].

A disadvantage of the known installation is that it does not allow reliable fixation of dried timber during centrifugation, in addition, it does not allow to dry long timber.

A known installation for rotary drying of wood, including a power unit associated with a rotor made in the form of a drum with a horizontally oriented axis of rotation, which is equipped with balancing devices made in the form of two spring supports for the rotor shaft, providing the ability to change the position of the axis of the rotor shaft, in any planes, and means for transmitting rotation from the power unit to the rotor shaft are made in the form of a cardan mechanism, while the installation is equipped with devices for loading the drum packages processed wood products, and the drum is provided with a means for strengthening the package of workpieces of wood in its cavity (Description of the patent RU 2279613 C1) [2].

A disadvantage of the known installation is that the processed wood products are placed in bags, which are then placed in the cavity of the drum, which leads to large overall dimensions of the installation and uneven drying of the wood inside the bag, due to the fact that the outer and inner surfaces of the bag will act centrifugal forces of different sizes, in addition, it will be difficult to remove the released moisture from wooden products located in the center of the package.

The technical result of the proposed device for dehydration of lumber is that it has a relatively small overall dimensions, allows you to uniformly dry long timber and securely fix them.

A technical result is achieved by the fact that on the outer surface of the rotating drum, partitions are mounted to place lumber between them and hinged lids perforated with holes to hold the lumber on the outer surface of the drum.

Figure 1, figure 2 schematically shows a General view of a device for dewatering lumber. Figure 3 shows the working body of the device for dehydration of lumber - drum.

The device for dehydration of lumber contains a rotating drum 2 mounted on the base 1, connected to a motor 3 by a mechanical transmission 4. The drum rotates on an axis 5 having two external supports 6, 7 and is equipped with a protective casing 8 with a cover 9 and end protective plates 10, 11, 12, 13.

The engine 3 provides a smooth acceleration of the drum 2 and its rotation with a steady speed in the operating mode. The liquid released during the operation of the device for dewatering lumber will be collected in a container 14 and discharged from it using a pipe 15.

The drum 2 consists of a hub 16, a rim 17 and a center connecting them 18. On the rim 17 of the drum 2 in the radial direction are mounted partitions 19 between which lumber 20 is placed. For holding lumber 20 on the working surface of the drum 2 there are hinged covers 21, 22, 23 , 24, which are perforated with holes 25 for draining the liquid released from the sawn timber during the operation of the installation. The released liquid settles on the inner surfaces of the casing 8, cover 9 and is collected in a container 14 from which is discharged outside the installation by means of a pipe 15.

The process of using the installation is as follows. The removal of moisture from lumber 20 is based on the action of centrifugal forces arising from the rotation of the drum 2 on which the lumber 20 is placed.

There are two ways to load lumber into the unit.

First way. The drum 2 is fixed using a special device (not shown in FIG.), The covers 9 of the protective casing 8 and the hinged covers 21, 22 are opened, lumber 20 is placed between the partitions 19. The hinged covers 21, 22 are closed. The drum 2 is turned one hundred and eighty degrees, fixed using a special device (not shown in Fig.), tilt hinges 23, 24 are torn off, lumber 20 is placed between the partitions 19. The lid 9 of the protective casing 8 is closed.

The second way. The drum 2 is fixed using a special device (not shown in Fig.). The end protective plates 10, 11 are removed, lumber 20 is placed between the partitions 19 by moving along the axis of the drum 2 (along the partitions 19). End protective plates 10, 11 are installed in place.

After turning on the engine 3 by means of a mechanical transmission 4, the drum 2 is driven into rotation, while the engine 3 provides a smooth set of speed to the desired value, and then rotation at the desired speed. A centrifugal force directed along the radius from the axis of rotation of the drum 2 to the periphery helps to remove water from the lumber 20. The separated liquid is first discharged through the perforated surface of the hinged covers 21, 22, 23, 24 of the hole 25, settles on the inner surfaces of the casing 8, covers 9 and is collected in a container 14 from which it is discharged outside the installation by means of a pipe 15. After rotating the drum 2 for a planned period of time, it is stopped, fixed with a special device (not shown in Fig. ), get dehydrated lumber 20.

The removal of dehydrated lumber 20 from the device for dehydration of lumber can be done in two ways.

First way. The drum 2 is fixed using a special device (not shown in Fig.). Open the cover 9 of the protective casing 8 and the hinged lids 20, 21. Remove the dehydrated lumber 20. Close the hinged lids 21, 22. The drum 2 is turned one hundred and eighty degrees, fixed using a special device (not shown in Fig.), The hinged lids 23 24. Remove the dehydrated lumber 20. Close the cover 9 of the protective casing 8.

The second way. The drum 2 is fixed using a special device (not shown in Fig.). Remove the protective plates 10, 11, 12, 13, get dehydrated lumber 20 by pushing them along the axis of rotation of the drum 2 (along the partitions 19).

BIBLIOGRAPHY

1. Description of the utility model for patent RU 76108 U1.

2. Description of the invention to patent RU 2279613 C1.

3. Katsadze V. A., Vinogradov D. V. Volumetric impregnation of wood by centrifugal method / Forest Journal 2007, No. 3.

Claims (1)

A device for dehydrating lumber, comprising a rotary drum with a drive mounted on the base, characterized in that partitions are mounted on the outer surface of the drum to accommodate the lumber between them and hinged covers are perforated with holes to hold the lumber on the outer surface of the drum.