SU1174703A1 - Drier for long-measure material - Google Patents

Abstract

A DRYER FOR A LONG-DIMENSIONAL MATERIAL containing a drying chamber and a pressure box placed in it with nozzle openings, exhaust gas extraction channels, heaters and a transporting device for the material being dried, in order to intensify the heat exchange and reduce the dimensions, exhaust channels gas combined into a suction duct located along the entire length of the drying chamber on one side of the transporting device and having an additional section located below t of the transporting device under the material for its entire width, and the heaters are placed inside the suction box. (L

Description

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The invention relates to a drying technique, in particular, to devices intended to listen to long moving materials, preferably for drying artificial leather.

The purpose of the invention is to intensify heat and mass transfer and reduce size.

Figure 1 shows the device, a longitudinal section, figure 2 - section aa in figure 1; on fig.Z - section bb in figure 1.

The device contains a drying chamber 1 with a removable side wall 2 and side door 3, pressure box 4, nozzle holes 5, channels 6 of the exhaust gas, the diffuser

7, fan 8. Channels 6 have a variable height increasing towards the side opposite to the fan.

8. Channels 6 are combined into one common suction box with an additional section 9. A drying material 11 is placed on the conveyor device 10. The electric motor 12 is mounted to the chamber 1, the shaft of which is connected to the fan impeller 8. A panel 13 is mounted in front of the door 3, on which are fixed tubular heaters 14. In an additional section 9, a temperature sensor 15 is coupled to a thermostat.

Chamber 1 is equipped with a branch pipe 16 for exhaust ventilation. In the sidewall47032

ke 2 is provided with openings 17 with bore adjusters 18 for controlled entry of fresh gas. (for example, air).

The dryer works as follows.

The fan 8 injects air into the pressure box 4, where excessive pressure is created. Under the action of this pressure, air flows out evenly from the nozzle holes 5 and blows the moving material 11, in particular the artificial leather. Exhaust air is sucked through channels 6 to section 9. Along the path of movement, air flows around tubular heaters 14 and heats up to the temperature specified by sensor 15. The radiation and convective heat heats the material 11 from its lower side, thereby contributing to the heat treatment process and drying artificial leather. From section 9, air enters the suction port of the fan 8j and the process repeats. A portion of the contaminated air circulating in the device is removed through the nozzle 16 in a volume calculated in accordance with the process.

Replenishment of the circular air is carried out by means of the formed vacuum from the windows 17. The regulators 18 allow control of the fresh air intake process.

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Claims (1)

DRYER FOR LENGTH MATERIAL, comprising a drying chamber and a pressure box with nozzle openings placed therein, exhaust gas channels, heaters and a conveying device for the material to be dried, characterized in that, in order to intensify heat and mass transfer and reduce the dimensions, the exhaust gas channels are combined in a suction box located along the entire length of the drying chamber on one side of the conveying device and having an additional section located below the conveyor tiruyuschego device under the material to the whole of its width, and heaters are arranged inside the suction duct. > 1 . 1174703