SU452734A1 - Gas dryer for flat materials - Google Patents

Claims (2)

I Gas dryers for flat materials, such as veneers, are known, which contain a chamber with a transporting device placed in it to transport the material to be dried and flue-ventilation equipment. The purpose of the invention is to ensure the operation of furnaces under pressure below atmospheric pressure and to improve working conditions. This goal is achieved by the fact that the fireboxes and fans are made in the form of a series of alternating personal and social units arranged in alternate order, and an exhaust channel is placed along the entire length of the chamber in its lower part. In the blocks, the burner devices of the fireboxes and axial fans are located on the opposite walls of the chamber. FIG. 1 schematically shows the dryer described; in fig. 2 is a section along A-A in FIG. one; in fig. 3 is a section along BB in FIG. one. In the chamber 1 of the dryer, the transporting body B is placed in the form of a roller transporter 2. At the top of the chamber in the window In this order, furnace 3 and fan 4 blocks are interconnected. In blocks 4, axial fans 5 are placed, driven to rotate from electric motors 6, and in blocks 3 - fireboxes 7 burner devices / nozzles / 8. An exhaust channel 9 is placed under the side corridor of the dryer along all the blocks. to remove the exhaust gas mixture from the substance. The dryer works as follows. The dried material is mixed along chamber 1 from the wet end to the dry one by means of conveyor 2 (the movement of the gas-air mixture in the diagram is indicated by arrows). The fans 5 suck in the exhaust gases from the right corridor 10 and the exhaust gases coming from the furnaces 7. The resulting gas-air mixture, the set parameters of the fan 5 is injected along the upper part of the blocks into the left side corridor 11, from where it is sent to the dried material. At the top of the blocks, the gas-air mixture washes and the fencing of the furnaces 7. A portion of the exhaust gas-air sms through channel 9 is removed by a centrifugal fan (not shown) to the atmosphere, and the main mass of the axial-flow fans 5 is directed to p & circulation. Fresh air enters through the furnace and partly through the leakiness of fences. According to this scheme, the fireboxes are under vacuum. The furnace and fan blocks can be located in the lower part, and the conveying devices for the material being dried can be located in the upper part of the dryer. The subject matter of the invention 1. A gas dryer for flat materials, for example, veneer, containing a cam with a transport device placed in it to transport the drying of ampic material and flue-ventilation equipment, differs from the fact that, with a view to ensuring the operation of the fireboxes below atmospheric pressure and the improvement of working conditions, the fireboxes and fans are implemented in the form of a number of alternating order and interconnected individual blocks, and throughout the length of the chamber, in its lower part, is located by the exhaust duct. 2. The dryer according to claim 1, I differ from the fact that the burner devices of the fire chambers and the fans, made axial, are located in adjacent blocks on opposite sides of the chamber. with h I