Heavy-oil-burning grain-drying complete apparatus

Abstract

This invention puts forward complete equipment for drying grains by burning heavy oil, which is easy ignition, convenient operation and maintenance of the tower and greatly reduced probability of staggered grains and revival including: setting multi-line dual-row steam gang tubes in a heavy oil tank, the level error is not greater than 2%., setting preheating device of hearth at the front of a hot wind oven and a protection board at the tail, said drying tower is composed of a tower and two towers, a front storehouse is set in front of the drying tower and a back storehouse is set at the rear.

Description

technical field [0001] The invention relates to the technical field of grain drying equipment, in particular to a complete set of heavy oil-fired grain drying equipment. Background technique [0002] At present, the main structure of the existing grain drying equipment includes two parts, one is the hot blast stove that produces the drying medium, and the other is the drying machine. The fuel used in the hot blast stove is basically coal and oil, and diesel oil is mostly used abroad. Coal is widely used in China, and the smoke, dust, low thermal efficiency, and large temperature fluctuations caused by coal burning have been gradually replaced by fuel oil. "Furnace" discloses a hot blast stove fueled by diesel oil. However, the price of diesel oil is too high, resulting in a significant increase in the cost of baking grain. The patent No. ZL99215243 developed by me is a "heavy oil-fired forward and counter-flow grain dryer" which discloses the use of heavy oil as the fuel. F...

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Problems solved by technology

[0002] At present, the main structure of the existing grain drying equipment includes two parts, one is the hot blast stove that produces the drying medium, and the other is the drying machine. The fuel used in the hot blast stove is basically coal and oil, and diesel oil is mostly used abroad. Coal is widely used in China, and the smoke, dust, low thermal efficiency, and large temperature fluctuations caused by coal burning have been gradually replaced by fuel oil. "Furnace" discloses a hot blast stove fueled by diesel oil. However, the price of diesel oil is too high, resulting in a substantial increase in the cost of baking grain. The patent No. ZL99215243 developed by me is a "heavy oil burning forward and reverse grain dryer" which discloses the use of heavy oil as the fuel. Fuel hot blast stove and forward-counterflow single-tower drying device solved the problems of pollution, low efficiency and high cost in the grain drying process, but after several years of practical operation, it was found that heavy oil tanks were easy to freeze, It is difficult to start the furnace, it is inconvenient to maintain the single tower, and there are still grain stagnation and retrograde phenomena. We must take it seriously and solve it to ensure that the grain drying technology tends to be perfect.

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