Steam use control method for cut tobacco dryer

Abstract

The invention discloses a steam use control method for a cut-tobacco dryer, which comprises the following steps of: installing flowmeters on a hot air steam pipeline and a cylinder wall steam pipeline of the cut-tobacco dryer, collecting steam flow in real time through a PLC (Programmable Logic Controller), and integrating by utilizing integro-differential equations to obtain a real-time steam use amount and an accumulated steam use amount; then calculating a flow mean value of each batch of preheating steam, judging preheating completion conditions, recording preheating time, recording the total use amount of preheating steam, and performing early warning and alarming at a preheating stage; calculating a flow mean value of each batch of steam in production, judging production completion, recording production time and total use amount of production steam, and performing early warning and alarming in a production stage. According to the method, effective control and early warning of the steam consumption of the equipment can be realized, so that the abnormal consumption of the steam is reduced, manual judgment and identification of the abnormal condition of the steam are replaced, the abnormal response efficiency is greatly improved, in addition, the method does not cause production interruption, a basis is provided for post data analysis, and the safety and stability of production are ensured.

Description

technical field [0001] The invention belongs to the field of the steam system of the silk dryer in the cigarette production process, and in particular relates to a method for managing and controlling the use of the steam of the silk dryer. Background technique [0002] The steam consumption in the silk workshop of the cigarette factory is mainly concentrated in key equipment such as drums, and the silk drying machine is the single-machine equipment with the largest steam consumption in the silk workshop, which directly affects the consumption of steam. Therefore, the management and control of the steam consumption of the silk dryer, on the one hand, can understand the real-time steam consumption; on the other hand, it can check the problems of steam consumption, which is conducive to energy saving and emission reduction. [0003] The steam consumption of the silk dryer is divided into hot air steam consumption and cylinder wall steam consumption in terms of equipment, and is...

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Problems solved by technology

[0003] The steam consumption of silk dryer is divided into hot air steam consumption and tube wall steam consumption in terms of equipment, and is divided into preheating stage and production stage in process. Leakage, poor water drainage, untimely switching of grades during the production process, too long preheating time, insufficient preparations for the feeding process, etc. will cause abnormalities in the steam system. In daily work, manual judgment and identification are relied on, lacking unnecessary intelligent diagnostic measures and methods

[0004] There are steam flowmeters installed on the steam pipes of the silk drying machine. The PLC can only collect the instantaneous value, and cannot directly read the accumulated value, so the flow of steam cannot be carried out. Analyzing the consumption of the steam system of the wire dryer is abnormal, which will lead to the increase of steam consumption and abnormal shutdown, which will affect the production efficiency and safety

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