Control method and device of tobacco pneumatic drying air-heating furnace

A technology of airflow drying and control method, which is applied in the directions of drying gas arrangement, drying, drying machine, etc., can solve the problems of long adjustment process time, complicated technology, large energy consumption, etc., and achieves convenient inspection of working conditions and device structure. Simple, energy-saving effect

Inactive Publication Date: 2013-08-07
CHINA TOBACCO HUNAN INDAL CORP
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Problems solved by technology

[0002] Tobacco drying is an indispensable part of tobacco processing. In particular, the airflow drying system of tobacco generally uses a hot blast stove to heat the process air flow, which requires a large amount of energy consumption. The hot blast stove generally uses a burner to burn fuel. When the burner is put into operation and only adjusts the air distribution ratio of several power points, and the required power in the production process is always changing frequentl

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  • Control method and device of tobacco pneumatic drying air-heating furnace

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0015] see figure 1 , the airflow drying hot blast stove 4 of the airflow drying device is equipped with a fuel regulating valve 2, an air distribution pipe 8, an air distribution fan 3 and a smoke exhaust pipe 7, and a CO detector 5 is installed on the exhaust pipe 7 of the airflow drying hot blast stove 4 and O 2 Detector 6, air distribution damper 1 is installed on air distribution pipeline 8, control system and CO detector 5, O 2 The detector 6 and the air distribution damper 1 are electrically connected to establish a chain control relationship.

[0016] see figure 1 , when the airflow drying hot blast stove 4 of the airflow drying device is in different power requirements, the fuel regulating valve 2 will be in different positions, and the CO detector 5 and O are installed on the exhaust pipe 7 of the airflow drying hot blast stove 4 ...

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Abstract

The invention discloses a control method and device of a tobacco pneumatic drying air-heating furnace. A CO detector (5) and an O2 detector (6) are installed on a flue gas discharging pipe (7) of the pneumatic drying air-heating furnace (4), an air distribution air door (1) is installed on an air distribution pipeline (8), and a control system is electrically connected with the CO detector (5), the O2 detector (6) and the air distribution air door (1) to establish interlocking control relation. The CO content and the O2 content in flue gas after combustion are adjusted by changing the opening degree of the air distribution air door by means of the control method. By means of the control method and device, combustion control of the tobacco pneumatic drying air-heating furnace can be achieved, accordingly emission of the combustion flue gas is effectively controlled, and energy consumption of the air-heating furnace is reduced. The device is simple in structure and reliable in operation.

Description

technical field [0001] The invention relates to a method for controlling a tobacco airflow drying hot air stove, and also relates to a device for realizing the method. Background technique [0002] Tobacco drying is an indispensable part of tobacco processing. In particular, the airflow drying system of tobacco generally uses a hot blast stove to heat the process air flow, which requires a large amount of energy consumption. The hot blast stove generally uses a burner to burn fuel. When the burner is put into operation and only adjusts the air distribution ratio of several power points, and the required power in the production process is always changing frequently, the combustion status cannot be determined and cannot be adjusted automatically, thus Environmental protection that affects system energy consumption and emissions. [0003] The factory generally detects the flue gas index of the hot blast stove after the hot blast stove has been running for a certain period, and...

Claims

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Application Information

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IPC IPC(8): F26B21/06
Inventor 贺万华
Owner CHINA TOBACCO HUNAN INDAL CORP
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