SU780619A1 - Apparatus for drying dyed products - Google Patents

Description

(54) INSTALLATION FOR DRYING COLORED PRODUCTS

one

The invention relates to a technique for drying colored products and can be used for the heat treatment of polymer coatings in the chemical industry; as well as in the radio, food and other industries.

A known device for drying articles comprising a heat-insulated chamber with a closed circulation loop for a heat transfer medium, comprising suction and discharge ducts located outside the chambers and air channels connected to them located inside the chamber fij.

The disadvantage of this setup is the presence of turbulent air mass movement, which violates the stability of the temperature in the chamber and worsens the drying conditions and the quality of the coating.

The purpose of the invention is to reduce the size of the installation and to improve the quality of the essence.

The goal is achieved by the fact that the suction and discharge air ducts are placed coaxially one in the other, and inside the chamber, parallel to the roof and bottom, are perforated screens that form air ducts. In this case, the perforations on the screens are made decreasing in the direction to the places where the ducts and ducts are connected.

ten

FIG. 1 shows a plant for drying colored articles in FIG. 2, section A-A in FIG. one,

A drying unit for painted products contains warm sol

15 chamber 1, door 2, e (shit 3, roof 4, filter 5, suction duct 6, discharge duct 7, fan 8, tee 9 with gate valves 10, air ducts 11-13 and their perforated screens I and electric heaters 15,

The perforations 16 in the screens H are made decreasing in the direction of the arms connecting the ducts to the air ducts 6 and y; the product undergoes drying, the temperature is distributed evenly throughout the volume of chamber 1, and the heat of substances formed during the drying process is recirculated and partially emitted 803.-L. Thanks to the presence of 1 -E1 e1Gy in the suction air ode 6, supplied by the fan 8, th agret th air through the perforations 16 of the screen 1 of the lower part of the chamber 1 pops into the air ducts n and 12 and more close to the air; casing 6 - the side of the fan 8 in the suction section 8. air flow containing volatile products is emitted into the atmosphere {V7 the remaining air through the tee 9 enters the discharge air duct 7, the air channel 13 and the perforated screen U at the upper part1: thus inside the chamber 1 creates a constant and uniform movement of air masses over and below, the mei is reached KeavNoier, the temperature distribution over the entire volume of chamber 1. The coldest & (G | Goyrr1 of controlled air is regulated by damper valves t Oh,. Thanks to the coaxial "airbag positioning suction of air duct 6 and 7 air, (

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(for 5 Sh y Yy 4 $ y 8y a | 1-frets a5asa -; I “gy“ ityi gg u;;: J: ig :: - d. 78 94 Recycling; does not require additional energy costs for heating , because during the movement along the injection duct 7 it has time to heat up due to the heat REMOVABLE from the chamber through the suction AIR DUCT 6. At the same time, the air duct 7 Performs the functions of a heat insulation jacket; - f ft "rLM It IOIA products and containing the thermal insulation of% chambers / with a closed circulation circuit for the coolant, including The suction and discharge air ducts placed outside the chamber and the air channels connected to them located inside the chamber, making it possible, in order to reduce overall dimensions and improve the quality of drying, the suction and discharge ducts are placed coaxially one into the Other. , and inside the chamber parallel to the roof and the bottom there are perforated fibie screens that form the air ducts. 2. Installation according to p, t, characterized in that the perforation in the screens is made decreasing towards the points where the ducts are connected to the ducts. Sources of information taken into account in the examination 1, USSR Author's Certificate; No. 522390, cl. F 26 B 3/30, 1972.

Claims (2)

Claim 1 “Installation for drying colored products, containing a thermally insulated chamber with a closed circulation circuit for the coolant, including ¹ external suction and discharge ducts and connected air ducts located outside the chamber, 'located inside the chamber, characterized in that, in order to reduce the overall size and improve the quality of drying, suction and discharge air-water are placed coaxially in one another / and inside the chamber parallel to the roof and the bottom there are perforated screens forming air ducts. . 2. Installation according to claim 1, which is due to the fact that the perforation in the screens is made decreasing Toward the places of connecting the channels to the air ducts /