SU1612192A2 - Drier - Google Patents

Abstract

The invention relates to drying and can be used in industrial installations primarily for drying paint coatings. The purpose of the invention is to increase reliability. The dryer contains a heat-insulated chamber 1 with end openings 2, main collectors 6 and additional collectors 7 located on the opposite walls of the chamber or on its base and on the ceiling. The nozzles 8 of the additional collectors 7 are oriented inside the chamber 1. Depending on the direction of the air flow in the channel 20 of the air curtain, the plates of the sensors of the direction of the air flow periodically interact with contactless sensors, which give a signal for alternate activation of the main 6 and additional 7 collectors. 4 il.

Description

FIG. one

N

I The invention relates to about; part of drying | and can be used in industrial installations, mainly for fcyiiiKH lacquer coatings, and is an improvement of the main image according to the author. St. No. 1377548.: The purpose of the invention is to improve interoperability.

I FIG. 1 shows a dryer with operating main collectors, common: b; in fig. 2 - the same, with working

additional collectors; in fig. 3

 Green I in FIG. one; in fig. 4 is a view A of FIG. 2. I Dryer contains heat insulated | samera 1, face openings 2, side (| tank 3, base 4, ceiling 5, main collectors 6, additional collectors 7 with nozzles 8, arranged in pairs vertically on the 1HD wall) from face opening 1 FIG. 1,2) or horizontally on the base 4 and the ceiling overlap 5 depending on the shape and dimensions of the products of the Dental 9, flaps 10, 11, discharge pipe 12 of the fan 13, suction nozzle 14, air ducts 15, the flaps 16, 17, air intake grilles Ш, 19, channel 20 air curtain, airflow direction sensors 2 | 1, plates 22, 23, proximity sensor 24 (for example, BDP-24), the signal from which through a delay unit (not shown) is supplied to a control system (not shown) by dampers 10 , And, and 16, 17, ti 25, nepefl kuyuschie sash 26, overhead conveyor {2 / for moving articles 28.

I Vertical collectors 6, 7 can be in | {) 1filled. height in the form of sections, each of which is associated with its own air ducts with valves from the valve 13 and operates alternately, for example, in the upper part of the channel 20, where the suspension of the conveyor 27 passes, the upper sections of the main collector 6 are included, and in the lower part of the channel 20, where product 28 passes, may be included lower sections of additional manifold 7.

The dryer works as follows.

The fan 13 is turned on, the flaps 10, 16 are opened, and the air drawn in from the intake grille 18 is supplied to the main collectors 6 and through the pipes 8 enters the channel 20, forming an air gate (Fig. 1), while the damper II, 17 are closed and the plates 22 of the airflow direction sensor 21 are in the plane of the rim opening 2 (Fig. 4), and the plate 23 is retracted and does not interact with the proximity sensor 24.

When product 28 enters channel 20 on conveyor 27, airflows supplied from main collector 6 are disturbed and, partially reflected from product 28, are pulled out, turning plate 22 (FIG. 4), and plate 23 interacts with contactless sensor 24, the signal from which enters the control system (not shown), automatically closing the valves 10, 16 and opening valves II, 17. As a result, the air in the main collector 6 is stopped and air is drawn in through the air intake grille 19 and its supply to the additional collectors 7, which supply air through the pipes 8 to the inside of the channel 20, preventing the outflow of air saturated with solvent vapors to the outside.

The overlap flap 26 rotates under the action of the air coming out of the nozzle 8 and returns the plate 22 to the initial position with the help of the pull rod 25, and the plate 23 leaves the interaction with the contactless sensor 24 and after a certain time interval (determined by depending on the length of the product 28 and the speed of the conveyor 27), the location of the product 28 in the end opening 2 of the channel 20, the shutters 17 and II are closed and the shutters 10 and 16 are opened, switching the air supply to the main collectors 6. Thus, depending and from the position of the plates 22 and 23 of the sensor 21, the air flow direction in the channel 2 end-window aperture 20, the air curtain are incorporated in the main work alternately 6 and 7 additional collectors.

Claims (1)

Invention Formula Dryer on the bus. St. No. 1377548, characterized in that, in order to increase reliability, in the end openings, respectively, of the main collectors, additional distributing collectors with inwardly directed nozzles fitted with overlapping doors are installed on the opposite walls of the chamber or horizontally on its base and on the ceiling and additional collectors are connected by air ducts equipped with regulating dampers, and additional sensors are installed along the perimeter of the end openings ki airflow direction formed by a pair of pivot plates, one of which is associated -with overlapping flaps additional nozzle manifolds and the other - with regulating dampers. I V -eight zo 17 IG Position I Position P 23 25 26 ffia.J B {A (noSepf tjmoJ 0US.