RU21447U1 - DRYING CHAMBER FOR Lumber - Google Patents

Abstract

A drying chamber for lumber containing a housing, a heat-insulating cover, heating elements and a transport trolley, characterized in that the housing is made with a sealed door, the transport trolley is equipped with a tray for collecting moisture and resin, and the thermal insulation casing is mounted on the housing with a gap for the heating elements.

Description

The utility model relates to the drying of solid materials or objects, in particular to the drying of solid materials in stationary chambers and can be used for drying lumber in the manufacture of carpentry and furniture.

Known drying chambers for lumber containing a housing, on the outside of which a heat-insulating casing, heating elements and a transport trolley are installed (see, ed. USSR certificate No. 901772 according to MKI F 26 V 9/06, claimed 08.04.80 and see ed. USSR certificate No. 1185038 according to MKI F26B 15/16, declared on 09/30/83)

The closest in technical essence is a drying chamber for lumber, containing a housing, on the outside of which there is a heat-insulating casing, heating elements and a transport trolley. The drying chamber is equipped with a humidification system and supply and exhaust channels (see ed. Certificate of the USSR No. 1185038 according to MKI F 26 B 15/16, declared 30 09.83)

Common disadvantages of drying chambers for lumber are the insufficient uniformity of drying of lumber in the stack and the unsatisfactory quality of drying in general, namely warping, cracking, and long drying times.

The utility model is based on the task of creating a drying chamber for lumber with high quality drying and with short drying times.

The problem is achieved in that in the drying chamber for lumber, containing the casing, on the outside of which a heat-insulating casing, heating elements and a transport trolley are installed, according to a utility model, the transport trolley is equipped with a tray for collecting moisture and resin located under the processed lumber, the casing is equipped with a tight a door, and a heat-insulating casing is mounted on the housing with a gap in which the heating elements are located.

The essence of the utility model is illustrated by schematic drawings. In FIG. 1 shows a proposed drying chamber, side view; in FIG. 2 - the same front view; in FIG. 3 - the same, rear view; in FIG. 4 is a section AA in FIG. 1; figure 5 shows a transport trolley, front view.

The drying chamber for sawn timber contains a housing 1, a heat-insulating casing 2 mounted on the housing 1 with a gap forming a heating cavity in which the heating elements 3 are placed. The heat-insulating casing 2 is made in the form of a shell with two walls, between which the heat-insulating material 4. The housing 1 equipped with a sealed door 5 with a rubber gasket and screw locking devices 6. Inside the housing 1 there are rails 7 with a transport trolley 8, which is equipped with a tray for collecting moisture and resin 9, married under the supports for lumber 10. The drying chamber is equipped with a safety valve 11, an adjustment valve 12, a pressure relief valve 13, a control pressure gauge 14, an electrical contact pressure gauge 15 and a temperature controller 16.

The drying chamber operates as follows.

Lumber 10 is placed on the transport trolley 10 and then it is rolled on rails 7 into the inside of the housing 1 and closed with an airtight door 5, twisting the screw locking devices 6. The heating elements 3 are turned on when the drying chamber is loaded and hermetically closed.

The drying chamber has two operating modes. In the first mode, part of the heating elements 3 is turned on for heating the drying chamber. Having reached the set temperature of 90 ° - 103 ° C, the automatic device is activated (not shown in the drawing) and the drying chamber switches to work in mode 2, in which all the heating elements 3 are turned on. Mode 2 provides control of the set maximum pressure and temperature by means of the automatic device , which turning the heating elements 3 on and off, maintains a preset pressure of 0.1 kgf / cm2 in the housing J and a temperature of 103 ° - 120 ° C. The drying time depends on the thickness of the lumber and the initial humidity and wood species and the required final moisture content of the dried lumber,

The proposed drying chamber for lumber can significantly reduce the drying time with high quality dried lumber, as well as with minimal waste, because there are no cracks and warping of wood.

A drying chamber for lumber containing a housing, a heat-insulating casing, heating elements and a transport trolley, characterized in that the casing is made with a sealed door, the transport trolley is equipped with a tray for collecting moisture and tar /, and the heat-insulating casing is mounted on the housing with a gap for the heating elements. Сд1и-и. Иера кап ft ft "К for nti / tofiamepucL / we //

Claims (1)

A drying chamber for lumber, comprising a housing, a heat-insulating casing, heating elements and a transport trolley, characterized in that the casing is made with a sealed door, the transport trolley is equipped with a tray for collecting moisture and resin, and the heat-insulating casing is mounted on the housing with a gap for the heating elements.