Inlet and outlet sealing structure of tobacco dryer

Abstract

The invention discloses an inlet and outlet sealing structure of a tobacco dryer, which comprises a barrel and a sealing piece. The surface of the barrel is the sealing face of the barrel. The sealing piece is bended and comprises a first part and a second part; the first part is attached on the sealing face of the barrel and the second part is fixedly connected with a front chamber and a back chamber of the tobacco dryer; a bandage is wound around the sealing piece and the barrel; two ends of the bandage are both arranged on the sealing piece and are tensioned through tension springs; and the sealing piece is a silica gel plate. The sealing performance of the silica gel plate is superior to the sealing performance of felted wool, so loss of cut tobacco is reduced to a certain degree, breakdown rate of equipment is reduced and stability of the quality of the cut tobacco is improved.

Description

technical field

[0001] The invention belongs to the field of tobacco machinery and equipment, and in particular relates to a sealing structure for an inlet and outlet of a shred dryer. Background technique

[0002] The key equipment for silk making is the tube-plate annular leaf drying machine, which adopts the inner and outer tube-tube-plate heating structure. The inlet and outlet ends of the machine are sealed with wool felt as the sealing material. The main characteristics of wool felt are: 1) high elasticity, which can be used as a material for shockproof, sealing, liner and elastic steel wire card clothing; 2) good adhesion performance, not easy to loose; Material, 4) fine structure, small gap, can be used as a good filter material, 5) good wear resistance, can be used as a polishing material; the main disadvantage of wool felt is that it has a viscous shrinkage reaction (commonly known as shrinkage), It is easy to harden and deform after viscous shrinkage reaction occ...

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