On-line continuous inspection and control system and method for acetate fiber and plasticizer in filter rod production process
A technology for cellulose acetate and production process, which is applied in the field of continuous online inspection and control systems and methods for cellulose acetate and plasticizers in the production process of filter rods, can solve the problems of online detection and the inability of online automatic control of important components of filter rods, and achieves the realization of Automatic control, fill the blank of equipment automatic control, realize the effect of real-time monitoring and alarm
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Embodiment 1
[0063] see figure 1, This example is implemented on the KDF2 filter rod forming machine, which is the most common in the tobacco industry. The specification of acetate fiber tow is 3.0Y / 32000. The length of the produced filter rod is 120mm / piece, the circumference is 24.25mm, and the suction resistance The center value is 270mm H2O, the plasticizer is triacetin, and the minimum unit length of the sensor is 1mm.
[0064] see figure 1 , the present embodiment 1 provides a system for the real-time detection of the acetate fiber and the plasticizer content of a single filter rod for the online production process of the filter rod, the system adopts the existing filter rod forming machine, and its main component is tow Package 11 specification select 3.0Y / 32000, pre-tension roller 12 represents v0, wire feeding roller 13 represents v1, specific speed roller 14 represents v2, plasticizer application device 15 selects spray type, output roller 16 represents v3, glue adding device 17...
Embodiment 2
[0073] Based on the system provided in Example 1, please refer again to figure 1 , the present embodiment provides a method for the real-time detection of the acetate fiber and plasticizer content of a single filter rod for the online production process of the filter rod, comprising the following steps:
[0074] Step 1: When producing 3.0Y / 32000 filter rods, first calculate the weight of the molding paper and glue in a single filter rod during the production of the batch (as described in the background information, the proportion of molding paper and glue accounts for about the entire about 8% of the filter rod, which cannot be ignored), and calculate the weight per unit length and use it as a constant w3, this embodiment has been tested, w3=74mg / 120mm=0.62mg / mm.
[0075] Step 2: The acetate tow is pulled up from the tow package 11 and passes through the terahertz liquid content detection sensor 1. At this time, the terahertz liquid content detection sensor 1 detects the liqui...
Embodiment 3
[0082] This embodiment provides an automatic control method for the amount of plasticizer applied to a filter rod, please refer to figure 2 , the method includes the following steps:
[0083] Step 1, as described in Example 2, calculate the amount W5 of plasticizer applied to a single filter rod, and according to the above method, the amount W5 of plasticizer applied in the single filter rod that has been detected in real time is continuously The W5 of N filter rods can be obtained easily, so that we can calculate the average value AVG(W5) of the plasticizer weight W5 per 100 filter rods. The reason for using n filter rods to calculate the mean deviation is to make the automatic control The system is more stable, which is well known in the professional field of automatic control.
[0084] Step 2. When there is a deviation between AVG (W5) and the set value of the plasticizer application amount of this specification for some reason, and the deviation exceeds the set allowable...
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Abstract
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