Safety device of batch type circulating grain drying machine

Abstract

The invention discloses a safety device of a batch type circulating grain drying machine. An air leakage pipe communicating with an inner cavity of a drying machine body is included, and a whole pipe body of the air leakage pipe is covered with a lifting opening and closing cover in a matched mode. Flow guide plates are fixedly arranged on the portions, corresponding to the cover wall of the lifting opening and closing cover, of the exteriors of two conducting holes in the left side and the exteriors of two conducting holes in the right side, and limiting guide rods are fixed to supporting legs on the left side and the right side of the bottom of the lifting opening and closing cover correspondingly. Rod bodies of the limiting guide rods vertically and upwards penetrate through supporting limiting blocks in a matched mode, blocking edges are fixedly arranged at the top ends of the rod bodies of the limiting guide rods, and the outer portion of the rod body of each limiting guide rod is correspondingly sleeved with a compression reset spring. The safety device solves the problem that pressure relief cannot be carried out due to too large air pressure of a machine cavity, the safety of the machine body is improved, the reliability is guaranteed, the structural design is reasonable, safety and stability are achieved, and the safety device is suitable for being popularized, installed and used on grain drying machines in the prior art.

Description

technical field [0001] The invention relates to the related technical field of grain dryers, in particular to a safety device of a batch type circulation grain dryer. Background technique [0002] Timely drying of grain is a necessary condition for threshing or storage. If the grain cannot meet the drying requirements, mildew may occur. The toxins after mildew will cause great damage to the human body, and severe cases are prone to tumors. Therefore, it is usually required in agriculture that the harvested grains should be dried and stored in time. [0003] see figure 1 , reference numeral 1 indicates a structural schematic diagram of a batch type circulating grain dryer in the prior art, a patent published on the Chinese Patent Network with the publication number CN204301451U, the patent name is a batch type circulating grain dryer drying device, Reference numeral 3 is the dryer body. Although this dryer can dry grain, there is a serious problem, that is, the whole body i...

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Problems solved by technology

[0003] see figure 1 , reference numeral 1 indicates a structural schematic diagram of a batch type circulating grain dryer in the prior art, a patent published on the Chinese Patent Network with a publication number of CN204301451U, and the patent name is a batch type circulating grain dryer drying device, Reference numeral 3 is the dryer body. Although this dryer can dry grain, there is a serious problem, that is, the whole body is not equipped with any safety device, because a large amount of water will appear in the machine cavity during the drying work. Steam and hot gas, once the gas pressure in the inner cavity is too large and exceeds the maximum limit that the casing can withstand, it is likely to explode, resulting in serious safety production accidents and casualties. Therefore, based on the dryer body 3 Improve and install safety devices to solve the problem that the air pressure in the machine cavity is too large to release the pressure, so as to improve the safety of the machine body and ensure the reliability

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