Air sealed door for grain depot

Abstract

The invention relates to an airtight door for a granary, which relates to a grain baffle door for a large-scale granary. The airtight door for the granary is characterized in that a left door leaf and a right door leaf are angulated at an included angle of between 130 and 145 DEG after closing, and are divided into three layers respectively, namely six door plates (1); single-hole semicircular gland strips (11) are arranged between an upper door plate (1) and a lower door plate (1) and between the door plates (1) and a door frame (7); a two-hole flat circular gland strip (17) is arranged between a left door plate (1) and a right door plate (1); bearings (22) are arranged between upper hinges (26) and lower hinges (25) of the door frame (7) and the door plates (1); and each layer of the door plates is uniformly provided with two pairs of locking devices (6) which consist of handwheels (14), lock sleeve screws (13), lock catch screws (15), pedestals (16) provided with hooks, and pedestals (12) provided with suspension loops. The airtight door for the granary is reasonable in structure, is safe and durable, and is lightweight, portable, quick and stable in opening and closing a lock; and the side pressure is more than 20 tons per square meter, and the time for airtight semi-attenuation from 500 Pa to 250 Pa is more than 25 minutes. Moreover, the airtight door for the granary can be widely used for the large-scale granary the heat preservation and heat insulation effects of which meet the requirement of transport and storage of the grain in controlled atmosphere.

Description

technical field [0001] The invention relates to a grain retaining door suitable for large-scale grain depots, especially suitable for bulk grain depots and grain depots converted from enclosing to bulk. This kind of grain retaining door is airtight and reliable, easy to open and close, can withstand more than 20 tons / square meter of lateral pressure, and is safe to use. Background technique [0002] Scientific and technological progress and social development have made grain circulation increasingly market-oriented and internationalized, and food consumption is increasingly required to be nutritious and green. Modern grain storage management is an important means to achieve the above requirements. Controlled atmosphere grain storage (by controlling the gas temperature in the granary to achieve safe and green grain storage) is a popularization technology of modern grain storage management. The storage capacity of new granaries in my country is about 50 billion kilograms, of...

AI Technical Summary

Problems solved by technology

Therefore, so far, there is no way to solve the problems of poor heat insulation of the warehouse roof and poor air tightness of the warehouse roof, warehouse walls, doors and windows in newly built tall and large flat warehouses.

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