Temperature raising device of cigarette making roller type leaves and the control method

Abstract

The present invention discloses one kind of heating equipment for cigarette producing cylinder and similar unit and its control method. The heating equipment includes a cylinder, a hot blast filtering screen, a hot blast circulating blower, a temperature detecting unit, a steam jetting pipe, a steam regulating valve, a heat exchanger with frequency variator, and a programmable logic controller, as well as a humidity detecting unit, a wind rate detecting unit and a heat exchanger regulating valve. It has one first control loop formed with the programmable logic controller, the hot blast circulating blower and its frequency variator; one second control loop formed with the programmable logic controller, the humidity detecting unit and the steam regulating valve; and one third control loop formed with the programmable logic controller, the temperature detecting unit and heat exchanger regulating valve. The equipment is controlled through on-line detection, automatic control, feedback and cycling.

Description

1. Technical field [0001] The invention relates to a cigarette shred processing equipment and a method thereof, in particular to a cigarette processing drum type leaf warming equipment and a control method thereof. 2. Background technology [0002] At present, the cigarette processing drum type leaf warming equipment in the cigarette industry is mainly composed of a drum, a hot air filter screen, a hot air circulation fan, a temperature detection device, a steam injection pipe, a steam injection regulating valve, a heat exchanger switch valve, and a heat exchanger. The steam injection pipe and the circulation air pipe of the hot air circulation fan are equipped with a temperature detection device, which can also be connected externally to detect the temperature of the process air flow. The control method of this equipment is to artificially adjust the heat exchanger switching valve connected to the heat exchanger and the steam injection regulating valve at the outlet of the ...

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Problems solved by technology

[0003] Since the three major factors affecting the quality of cigarette products in the hot air circulation system are temperature, humidity and air volume, practice has proved that the above-mentioned equipment and its control method have only a single means of increasing temperature and humidifying. During the production process, the heat exchanger is closed, and only the steam medium Once the temperature is adjusted, it will directly cause the humidity to change, and the adjustment of the humidity will cause the temperature to change, and the change of the temperature and humidity will cause the air volume to change. The quality of cigarette products is stable; the second is that it cannot be automatically adjusted according to the needs of cigarette products; the third is that the processing mode is single, which is not conducive to the individualized development of cigarette processing

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