RU16948U1 - DRYING CHAMBER FOR Lumber - Google Patents

Abstract

A drying chamber for lumber containing inclined screens installed inside the ceiling and walls and a condensate air discharge valve, characterized in that the inclined screens swirl the drying agent flow around the stacks and spiral along the chamber, the condensate air valve regulates the condensate air outlet under the influence of humidity and pressure at the inlet to the suction duct, the fan operation switch regulates the drying mode in the chamber, the fan operation switch turns off the fans When reaching the final required humidity.

Description

20O01 18264MPK F26 on 9/06

MNSNSH) Пш tani .1.,. T

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Lumber Dryer

The invention relates to drying equipment, in the woodworking industry, and can be used for drying lumber in batch chambers with forced circulation of the drying agent. Known cameras for drying lumber with forced circulation of the drying agent in one direction and with reversal, with the organization of the flow using dampers (screens), perforations, narrowing the cross-section of the chamber (or channels), using various parameters and modes, to increase efficiency and achieve the greatest uniformity of final humidity.

The aim of the invention is to increase the drying efficiency and achieve uniform final humidity with less cost.

The drawing schematically shows the proposed camera: FIG. 1 is a plan view; FIG. 2 is a longitudinal section.

The drying chamber contains a discharge fan (1), with a steam hood (2) and guide plates (3), tightly (almost hermetically sealed) entrance gates (4), a rail (5), a suction duct (b) with a valve for condensate discharge air (oversaturated steam) (10) and a suction and discharge fan operation switch (16 (pos. 1 ViewB)), a fan (7) with an air damper (15), guiding screens (8) located on the ceiling and walls of the chamber, twisting flow (13) around the stacks (12) in a spiral along the chamber, also closing tightly The output gate (9), the circulation channel (11) and the fan operation switch (17 (pos. 11 of Fig. 2)). The camera operates as follows. After rolling 111tabels (12), the chamber closes and the discharge (1) and

suction (7) fans (suction cup (17) is wetted); The air heated by the heater (2), which is lined with nastins (3), rushes with pressure to the chamber ceiling around the stack (12) but the cavities formed by the screens (8) are aerodynamically twisted and move in a spiral to the suction box (b). The heaviest wet part of the stream moves there along the bottom along the track.

Once in the suction box, air impregnates the hygroscopic material (14) and opens the valve (10) to release condensate air. The driest air rises into the suction fan (7) and flows through the circulation channel (11) to the beginning of the chamber.

After warming up the stacks, to intensify the drying process, the discharge and suction fans begin to work in turn, according to the commands of the switch (16), which (when the material (14) is saturated with moisture) turns on the suction fan; in case of loss of moisture it turns on discharge) creating in the chamber either back-up or rarefaction of air. The air damper (15) does not allow the drying agent to move through the circulation channel (11) during the operation of the blower fan.

The drying process in a stack (a stack with gaskets and spacers) occurs under the influence of aerodynamics and electromagnetic induction of the flow of the drying agent. The condensate air inlet valve (10), during operation on moisture fluctuations of the hygroscopic counterweight (14) and pressure drops, regulates the condensate air output. A switch (17) turns off the fans when they reach the final desired humidity.

2

Claims (1)

A drying chamber for lumber containing inclined screens installed inside the ceiling and walls and a condensate air discharge valve, characterized in that the inclined screens swirl the drying agent flow around the stacks and spiral along the chamber, the condensate air valve regulates the condensate air outlet under the influence of humidity and pressure at the inlet to the suction duct, the fan operation switch controls the drying mode in the chamber, the fan operation switch turns off the fans When reaching the final required humidity.