The air tightness index of granary is not only an important means to measure the sealing quality of granary, but also an effective measure to effectively control grain temperature, inhibit grain respiration, control diseases and insect pests, and delay the decline of grain quality.
Grain depot doors and windows generally have the characteristics of good sealing performance, high pressure resistance, convenient installation, good light transmission, high and low temperature resistance, corrosion resistance, no pollution, scrub resistance, etc.
The moisture content of the grain stored in the Granary is generally very low. Therefore, the doors and windows of the granary have strong moisture absorption and water absorption. If the surrounding air or contact objects are very wet, the stored grain will absorb its water and increase its water content, causing fever and mildew, and it is impossible to store grain better.
Grain Depot thermal insulation door is a special door and window for sealed storage and insulation of grain in house-type grain depot. The form of thermal insulation door adopts flat open air-tight door, steel framework compression structure. Closed insulation doors and windows are welded with cold-formed hollow square steel (the material meets the requirements of GB228-87 standard) to ensure the smoothness and rigidity of doors and windows. Sealed thermal insulation door the window panel is 0.75 extra thick color plate, the inner panel is 0.6 extra thick galvanized plate or color plate, the panel is formed by special pressure groove, and the inner cavity is filled with thermal insulation material: polystyrene self-extinguishing foam board. The outer frame, outer panel, inner panel and thermal insulation materials are combined and formed through processes such as recombination, frame pressing and riveting. The door leaf of grain depot thermal insulation door is equipped with a locking connecting rod. The doors and windows are closed by moving the handle. After closing, one side of the sealing seal is tightly attached to the surface of the door frame, and the other side is stuffed between the door cracks, it adopts our company's special upper and lower locking device and lock fixed, and the lock is made of special steel casting. Sealed insulation doors and windows should have reliable sealing, thermal insulation and flexible opening and closing characteristics.
