Square tube type four-return metal hot-blast-furnace gas drier

Abstract

The invention relates to a square tube type four-return metal hot-blast-furnace gas drier. The square tube type four-return metal hot-blast-furnace gas drier is provided with an insulation machine cabinet which is square shaped and capable of being dissembled from the middle into left and right parts, a left-side guide plate and a right-side guide plate are arranged in the insulation machine cabinet, a drying chamber is formed between the left-side guide plate and the right-side guide plate, a combustion chamber is formed between the right-side guide plate and the right wall of the insulation machine cabinet and at the lower portion in the insulation machine cabinet, a heating chamber is formed above the combustion chamber, furnace ends are accommodated in the combustion chamber, a furnace body which is of a four-return metal hot-blast furnace body is accommodated in the heating chamber, and the furnace body comprises a plurality of vertical square tubes and four horizontal square tubes connected with the vertical square tube and horizontally folded and arrayed in a zigzag manner. Compared with an ordinary gas dryer, the square tube type four-return metal hot-blast-furnace gas drier has the advantages of high heat transfer efficiency, easiness in carry and good popularization value.

Description

technical field [0001] The invention relates to drying equipment, in particular to a gas dryer. Background technique [0002] In production and life, people often use gas drying equipment to dry tea, grains, etc., so that they can reach a state of drying and dehydration and prolong their storage time. [0003] Existing gas drying equipment usually consists of a thermal insulation cabinet and a gas furnace arranged inside the thermal insulation cabinet, and a hot gas channel for flue gas circulation is arranged above the gas furnace. When in use, it is necessary to transport the thermal insulation case to a suitable working place, light the gas furnace, and as the combustion time of the gas furnace prolongs, the air around the furnace body will be heated and heated by the heat conduction of the flue gas, and the heated air will enter into the thermal insulation The inside of the case, and then dry the tea, grains, etc. placed inside the heat preservation case. [0004] The ...

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Problems solved by technology

[0004] The hot gas channel of the current gas drying equipment is generally a circular straight-through hot gas channel, which has problems such as small air flow and low heat transfer efficiency. Large size, inconvenient handling and other problems, the large volume makes it often unable to enter narrow alleys and small factory gates, which greatly restricts its application site

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