Thick liquid porridge concentration control method and control system thereof
A control system and control method technology, applied in textile and paper making, complete sets of equipment for producing artificial threads, etc., can solve problems such as the adjustment lag of metering pump, achieve viscose quality control, maintain system glue amount, and fluctuation range of alkali fiber composition reduced effect
Pending Publication Date: 2021-04-16
江苏金羚纤维素纤维有限公司
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Problems solved by technology
This control method has the phenomenon of metering pump adjustment hysteresis when the added amount deviates from the actual value and adjustment
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[0024] It is easy to understand that, according to the technical solution of the present invention, those skilled in the art can propose multiple structural modes and implementation modes that can be replaced without changing the essence and spirit of the present invention. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the entirety of the present invention or as a limitation or restriction on the technical solution of the present invention.
[0025] According to an embodiment of the present invention combined with figure 1 show. Porridge is made of pulp. impregnation alkali. The auxiliary agent and the catalyst are mixed and stirred, and then output and squeezed. In order to stably control the concentration of the porridge, a method for controlling the concentration of the porridge is proposed, which includes the following steps:
[0026] S1. Measur...
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The invention provides a thick liquid porridge concentration control method. According to the thick liquid porridge concentration control method, a thick liquid porridge is obtained by mixing and stirring pulp, dipping alkali, an auxiliary agent and a catalyst. The method comprises the following steps that S1, a pulp feeding speed coefficient is measured, and a pulp weight coefficient is obtained according to the number of pulp bags, the weight of the pulp bags and the pulp feeding speed coefficient; S2, the pulp feeding amount is determined according to the spinning glue flow, and the ratio of the pulp feeding amount to the pulp weight coefficient is the speed of a pulp feeder; S3, according to the bath ratio coefficient, the alkali feeding flow is determined in combination with the pulp feeding amount, and the bath ratio coefficient is the ratio of the impregnation alkali content to the pulp content; and S4, the content proportionality coefficient of the auxiliary agent and the catalyst is determined in combination with the pulp feeding amount, and the addition amount of the auxiliary agent and the catalyst is determined in combination with the pulp feeding amount. According to the method, stock solution sub-plant planned production output is converted into corresponding production input yield, data is visual, in-and-out balance of a production system is achieved, and a large amount of manual adjustment workloads are reduced.
Description
technical field [0001] The invention relates to the field of pulp and porridge production, in particular to a method for controlling the concentration of pulp and porridge and a control system thereof. Background technique [0002] During production, pulp and impregnating alkali are continuously fed into the impregnating barrel. The amount of lye and alkali is interlocked with the liquid level of the impregnating barrel. The feeding speed is controlled according to the change of stirring current in the impregnating barrel. , manually adjust the meal feeding speed until the stirring current reaches the empirical value range. When the alkali flow rate and the liquid level of the impregnation tank are interlocked and automatically adjusted, it is necessary to pay attention to the current change of the stirring blade of the impregnation tank from time to time. If the discharge pump is not adjusted properly or fails, it will easily cause process accidents. Example: If the rotati...
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IPC IPC(8): D01D13/02
Inventor 唐文秀蒋伟杜国祥石卫东
Owner 江苏金羚纤维素纤维有限公司