Plate model dropping film evaporator simulating system

Abstract

The invention discloses a plate model dropping film evaporator simulating system, which comprises a DCS control system which is connected to a plate model dropping film evaporator and has function of controlling the model dropping film evaporator and data acquisition, and also comprises a real-time database, a chemical analysis data module and a plate model dropping film evaporator dynamic simulation module, wherein the plate model dropping film evaporator dynamic simulation module is connected with the real-time database; the system simulates the operating process of the plate model dropping film evaporator through a computer system; and the real-time database provides parameters for the computer system simulating the plate model dropping film evaporator. The invention builds a simulation model for the plate model dropping film evaporator in the alumina producing process so as to facilitate guiding production and evaluating system performance, conveniently simulate and improve parameter design of the evaporator, search for the optimized production feed scheme, improve operational speed of the system and stabilize feed flow.

Description

Technical field: [0001] The invention relates to a simulated plate type falling film evaporator system, which belongs to the field of industrial process simulation. Background technique [0002] Evaporation is a very important process and bottleneck link in the alumina production process. Its energy consumption accounts for 20%-25% of the alumina production energy consumption, steam consumption accounts for 48%-52% of the total steam consumption, and the cost accounts for 20%-25% of the alumina production energy consumption. 10%-12% of the production cost. At present, the plate type falling film evaporation process has been well promoted in the production process of alumina, and has shown many advantages in actual use, but the existing alumina plate type falling film evaporation process The process is usually controlled by the DCS control system. The DCS control system is only used as an operation and management platform. The control of the entire production line is still in...

AI Technical Summary

Problems solved by technology

[0002] Evaporation is a very important process and bottleneck link in the alumina production process. Its energy consumption accounts for 20%-25% of the alumina production energy consumption, steam consumption accounts for 48%-52% of the total steam consumption, and the cost accounts for 20%-25% of the alumina production energy consumption. 10%-12% of the production cost. At present, the plate type falling film evaporation process has been well promoted in the alumina production process and has shown many advantages in actual use. However, the existing alumina plate type falling film evaporation process The process is usually controlled by the DCS control system. The DCS control system is only used as an operation and management platform. The control of the entire production line is still in the state of manual adjustment. The acquisition of technical and economic indicators depends entirely on the actual experience of the operators. The operation and operation of the evaporation process do not have an optimal value that can be referred to, which makes it difficult to stabilize and further improve the operation and operation level of the evaporation process

On the other hand, process engineers have many good ideas in actual production, and it is inconvenient to conduct experiments and research on the actual system, which limits the further development of the potential of the advanced plate falling film evaporator process.

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