Intelligent setting system and method for aluminum oxide dissolution process
A kind of aluminum oxide, intelligent technology, applied in the direction of chemical instruments and methods, alkali metal aluminate/alumina/aluminum hydroxide preparation, general control system, etc., can solve the problem that the secondary alkali addition flow cannot be adjusted, etc.
Active Publication Date: 2020-02-28
NORTHEASTERN UNIV
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[0005] (1) The purpose of the present invention is to provide an intelligent setting system and method for the alumina dissolution process, aiming to solve the problem that the secondary alkali flow rate in the alumina dissolution process cannot be adjusted at any time according to the actual situation
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[0084] In order to better explain the present invention and facilitate understanding, the present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.
[0085] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.
[0086] In addition, in the present invention, descriptions such as "first", "second" and so on are used for description purposes only, and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of indicated technical features. Thus, the features defined as "first" and "se...
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The invention relates to the technical field of industrial automation control, in particular to an intelligent setting system and method for an aluminum oxide dissolution process. The system comprises: a data obtaining layer which is used for obtaining basic data; a parameter input layer used for inputting and setting required parameters and boundary condition constraints; and an intelligent setting layer used for setting the initial value of the secondary alkalifying flow in the dissolution process to obtain the intelligent setting value of the secondary alkalifying flow. According to the invention, the initial value of the secondary alkalifying flow in the dissolution process is set through periodic feedforward correction and feedback correction, the intelligent set value of the secondary alkalifying flow is obtained, and intelligent set control over the aluminum oxide dissolution system is achieved. According to the intelligent setting system and method, the workload of operators isreduced, the subjectivity and randomness of production depending on experience are avoided, and the product quality and other production indexes are effectively and reliably guaranteed.
Description
technical field [0001] The invention relates to the technical field of industrial automation control, in particular to an intelligent setting system and method for an alumina dissolution process. Background technique [0002] High-pressure dissolution is an important process in the production process of Bayer process alumina. Its main process is to pre-desilicate the qualified raw ore slurry from the raw material unit and send it to the dissolution unit with a diaphragm pump. , the useful component alumina in the pulp is dissolved out, and the pulp after the dissolution is diluted with a washing solution and then sent to the settling tank for red mud separation. [0003] The high-pressure dissolution process has the characteristics of complex mechanism, strong nonlinearity, severe coupling, time-varying, large lag, and large interference. At present, the setting value of the secondary alkali flow rate is mainly given manually to ensure that the caustic ratio of the eluate i...
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IPC IPC(8): G05B19/418C01F7/06
CPCG05B19/41875C01F7/0666G05B2219/32368Y02P90/02
Inventor 柴天佑胡佳浩贾瑶李战辉唐光振
Owner NORTHEASTERN UNIV