Curing heating supply furnace of concentrated combustion dispersed heating supply type bulk curer

Abstract

The invention relates to an intensive tobacco curing barn, in particular to a tobacco curing barn in the tobacco field, belonging to curing and drying equipment of agricultural and sideline products. The tobacco curing barn mainly comprises a combustion furnace, heat exchangers, smoke guide pipes, combustion fans and curing barns, wherein the whole combustion furnace and a secondary combustion chamber of the combustion furnace are sealed in a heating chamber; a combustion chamber is connected with the secondary combustion chamber through the smoke guide pipes; the flue gas outlet of the secondary combustion chamber is connected to the heat exchangers arranged in all intensive curing barns through the smoke guide pipes; and the combustion fans are connected on the pipelines of the heat exchangers. By adopting the mode of negative-pressure reverse gasification and secondary combustion, the tobacco curing barn can fully combust coal and achieves excellent energy saving environmental protection performance; and compared with the curing heating supply furnace of the traditional bulk curer, the tobacco curing barn can save energy by more than 30% and reduce atmospheric pollutant emission by more than 60%, and greatly lower the workload of coal feeding, deslagging, maintenance and the like in the tobacco curing process, and lower the labor intensity by more than 30%.

Description

technical field [0001] The invention relates to a baking and heat supply furnace in a dense barn, which belongs to the technical field of baking and drying facilities, in particular to tobacco baking and drying facilities. Background technique [0002] At present, the widely used method of drying tobacco leaves in intensive curing rooms is that one curing room is equipped with a set of heating and heating equipment. This kind of "one pair One "intensive baking room baking and heating furnace technical specifications. [0003] Although many domestic manufacturers are engaged in the production of baking and heating furnaces for intensive baking rooms, with different forms and performances, they all belong to the "one-to-one" heating method, that is, one set of heating equipment can only serve one baking room. Roasting provides heat. In addition, since the national implementation of the intensive tobacco leaf curing standard, the curing barns have been built in the form of "b...

AI Technical Summary

Problems solved by technology

[0003] Although many domestic manufacturers are engaged in the production of baking and heating furnaces for intensive baking rooms, with different forms and performances, they all belong to the "one-to-one" heating method, that is, one set of heating equipment can only serve one baking room. toasting provides heat

In addition, since the national implementation of the intensive tobacco leaf curing standard, the curing barns have been built in the form of "barring room groups", that is, each curing point has multiple barns built at the same time, so multiple sets of baking and heating equipment are also required. , due to the heavy workload of coal addition, slag removal and maintenance during the tobacco leaf curing process, a large number of operators need to be equipped at each curing point during the curing season, which undoubtedly brings greater work to the already extremely busy tobacco farmers. pressure

[0004] In recent years, a few places in China have begun to try to use hot water boilers and steam boilers for centralized heating of tobacco leaves. However, since this type of equipment is special equipment, on the one hand, professional manufacturers and personnel are required for design, production, operation, and maintenance. Promote and apply in the vast rural areas

On the other hand, this type of equipment has a large one-time investment and high requirements on site conditions, so it is difficult to enter the field of tobacco leaf curing in rural areas.

In addition, from the perspective of tobacco leaf curing process requirements, the heating process involves multi-stage constant temperature and temperature rise. Since this type of equipment uses hot water or steam for heat transmission, the temperature it carries is greatly limited (generally it can only reach below 250°C) , so it is difficult to meet the requirements of the tobacco leaf curing process (such as the requirement to ensure that the temperature in the curing room does not drop during the large dehumidification period)

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