Tobacco leaf bulk curing barn smoke waste heat utilization device

Abstract

The invention discloses a tobacco leaf bulk curing barn smoke waste heat utilization device which comprises a heat exchanging chamber, a smoke return chamber and a connecting chamber. A chimney is located on one side of the heat exchanging chamber. A smoke baffle plate is arranged in the chimney. The chimney which is located above and below the smoke baffle plate is connected with the smoke return chamber through an upper metal pipe and a lower metal pipe. When cold air passes through the upper metal pipe and the lower metal pipe, the cold air can be heated to heat up to become hot air. A heating chamber air inlet is arranged on the side wall of the heating chamber. A heat exchanging chamber hot air outlet of the heat exchanging chamber is connected with the heating chamber air inlet of a curing barn through the connecting chamber so as to enable the hot air of the heat exchanging room to conduct into the heating chamber. The tobacco leaf bulk curing barn smoke waste heat utilization device has the advantages that the waste heat of smoke discharged by the chimney of the curing barn can be heated the air and entered into the curing barn, consumption of fuels (the fuels are mainly composed of coal) can be reduced, noxious gaseous emission can be reduced, energy conservation and emission reduction can be achieved for the tobacco leaf curing, cost can be reduced and the like.

Description

technical field [0001] The invention belongs to the technical field of energy saving and emission reduction, and in particular relates to a flue gas waste heat utilization device of a tobacco leaf intensive curing barn. Background technique [0002] my country is the country with the largest planting area of ​​flue-cured tobacco in the world. After the tobacco leaves are mature, they need to be collected and loaded into the barn for baking, which consumes a lot of coal. Coal is burned in the furnace of the barn to produce high-temperature flue gas. The high-temperature flue gas flows through the heat exchanger to transfer heat and heat the air in the heating room to become hot air. The hot air is sent to the smoking room by the circulating fan to heat the tobacco leaves. It promotes extremely complex changes in the tobacco leaves, and finally makes the tobacco leaves turn yellow and dry; the flue gas after doing work in the heat exchanger finally enters the chimney and is d...

AI Technical Summary

Problems solved by technology

At present, there are no waste heat utilization measures in the intensive curing barn, and the high-temperature flue gas is discharged into the atmosphere, so that the waste heat of the flue gas in the intensive barn is wasted and not utilized, which reduces the total thermal efficiency of the barn, so the unit dry tobacco leaves Larger coal consumption, more flue gas emissions, and higher baking costs

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