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Intelligent fluid batching method

A fluid and raw material technology, applied in the field of fluid intelligent batching, can solve problems such as seasonal temperature differences, inconsistent test results, and different experimental conditions, and achieve the effects of reducing participation, saving operating costs, and stabilizing product quality

Inactive Publication Date: 2021-11-30
陆越自动化科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to provide a fluid intelligent batching method to solve the problems raised by the above-mentioned background technology, whether the current dissolution process is completed and how to judge it, the problem of the optimal preparation of the mixed solution solution, the problem of repeated detection and additional raw materials , The experimental conditions of the production site and the testing room are different, as well as the temperature difference in different seasons, resulting in inconsistent test results with the actual site

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Embodiment

[0061] In the lithium-ion battery industry, in the production process of the precursor of the ternary positive electrode material, it is required to use NiSO4·6H2O, CoSO4·7H2O, MnSO4·H2O to prepare a mixed solution of 50±2m3 at 45°C, so that the Ni, Co, and Mn in the mixed solution The molar ratio is (5±0.05):(2±0.02):(3±0.03), the total concentration of Ni, Co, Mn elements is 120±0.5g / l, the method is as follows:

[0062] 1. The dissolution of NiSO4·6H2O and CoSO4·7H2O is an endothermic process, and the saturation increases with the increase of temperature. In the saturated solution of NiSO4·6H2O in winter, the concentration of Ni can reach 145g / l, whichever is 90% That is 130g / l; in the saturated solution of CoSO4·7H2O, the concentration of Co can reach 143g / l, whichever is 90% is 128g / l. The dissolution of MnSO4·H2O is an exothermic process, and the saturation decreases with the increase of temperature. In the saturated solution of MnSO4·H2O in Xiajie, the concentration of ...

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Abstract

The invention discloses an intelligent fluid batching method. The intelligent fluid batching method comprises the following steps: step 1, conducting early-stage preparation; step 2, determining the allowable maximum concentration value of each raw material solution; step 3, completing dissolution of each raw material; and step 4, completing preparation of a mixed solution. In the first step of early-stage preparation, solutions with different concentrations are prepared for each raw material, the mixed solution is made into solutions with the same raw material proportion but different total concentrations, physical and chemical characteristics of all the solutions at different temperatures are tested, data are recorded, and the corresponding relation between the concentration and the temperature and the corresponding relation between the concentration and the temperature and the physical and chemical characteristics of all the solutions are established. According to the intelligent fluid batching method, while the production space is saved, fixed data investment is saved, online monitoring of the concentration and proportion of raw materials and intelligent batching and supplementing can be achieved, under the condition that the product types are increased, the aim of not increasing the number of dissolving tanks is achieved, the batching process is simplified, and the intelligent production requirement is met.

Description

technical field [0001] The invention relates to the technical field of fluid intelligent batching, in particular to a fluid intelligent batching method. Background technique [0002] In the field of chemical production, fluid batching is one of the most common production processes. In general chemical enterprises, the batching process is not taken seriously, it is considered as a process with low technical content, and the requirements for workers' quality are relatively low. But in fact, the results of the ingredients often have a crucial impact on the quality of the product, and the artificially controlled ingredients generally have poor batch consistency. [0003] If the raw material is powder, granules or crystals, the traditional manual batching method is: put each raw material directly into its own buffer silo, and then put the buffer silo into the metering silo. After accurate metering, all raw materials enter the same A dissolving tank for dissolving to obtain a mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F15/00B01F15/04B01F15/02
Inventor 涂国营黄宗许敏
Owner 陆越自动化科技(上海)有限公司
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