Automatic control method and device for realizing safe production load adjustment in chemical industry production

Abstract

The invention relates to an automatic control method for realizing safe production load adjustment in chemical industry production. The method includes the following steps that: 1) the set value of the feeding capacity of a main control raw material is inputted according to production requirements, wherein the main control raw material is a raw material for deciding production load; 2) the set value of the feeding capacity of an auxiliary control raw material is obtained according to the set value of the feeding capacity of the main control raw material and a raw material proportioning coefficient K; 3) the change direction of the set value of the feeding capacity of the main control raw material relative to current feeding capacity is judged automatically, namely, whether the set value of the feeding capacity of the main control raw material relative to the current feeding capacity is increased or decreased is judged automatically; 4) the sequence of the feeding capacities of the main control raw material and the auxiliary control raw material is determined and adjusted according to the change direction of the set value of the feeding capacity of the main control raw material, and the sequence of the feeding capacities is transmitted to an executing mechanism; and 5) the actual feeding capacities of the main control raw material and the auxiliary control raw material can be made to achieve respective set values through a feedback control algorithm, and dynamic equilibrium can be maintained. With the automatic control method adopted, onekey operation when the production load is required to be adjusted in the chemical industry production can be realized, and potential safety hazards can be eliminated, and labor intensity can be greatly reduced. The invention also relates to an automatic control device for realizing safe production load adjustment in chemical industry production.

Description

technical field [0001] The invention relates to the fields of chemical industry, metallurgy, manufacturing, etc., and in particular relates to a safety linkage control method and device suitable for automatic lifting and lowering of production loads in chemical enterprises. Background technique [0002] For a long time, the "one-button operation" of production load lifting in chemical enterprises has been a very cumbersome and difficult task, especially when it comes to safety production regulations. During the process of production load lifting and lowering, the two materials that participate in the reaction need to change according to the load. When the direction determines the joining sequence, the above work needs to be done manually by the operator. Due to the issue of chemical safety production, in the current traditional mode, the operators of chemical enterprises must be very careful in manual operation when lifting and lowering the load. After receiving the schedul...

AI Technical Summary

Problems solved by technology

The above-mentioned traditional operation method greatly consumes the energy of the operators, especially for night shift operators, a little slack will bring huge safety hazards to the production of the enterprise

[0004] In the same way, the sequence of coal powder and air feed adjustment is also involved in the process of boiler load up and down. The wrong sequence will cause the boiler to explode. Such safety production accidents are not uncommon.

[0005] figure 1 It shows the operation process of changing the production load in chemical enterprises in the prior art. The manual operation in the whole process makes the labor intensity of the operators high and the production efficiency is low. Every time the production load is changed, there is a safety risk. Therefore, it is possible to realize the safe and automatic lifting of production in chemical enterprises Load linkage control is imminent

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