Agent adding control device and agent adding control method in denitration catalyst regeneration process

Abstract

The invention discloses an agent adding control device in a denitration catalyst regeneration process. The agent adding control device comprises an agent box and a catalyst regeneration pool. A pressure sensor is arranged at the bottom of the agent box, and the agent box is further connected with an agent adding electromagnetic valve; the catalyst regeneration pool is connected with a water supply electromagnetic valve and a water drainage electromagnetic valve; an infrared receiver, a highest point infrared emitter and a supplementary medicine infrared emitter are arranged in the catalyst regeneration pool; a floating plate capable of moving up and down is arranged on the catalyst regeneration pool, and the infrared receiver is mounted on the floating plate; the pressure sensor, the agent adding electromagnetic valve, the water supply electromagnetic valve, the water drainage electromagnetic valve and the infrared module are all connected with the PLC; and the PLC is connected with a computer. The invention further discloses an agent adding control method applying the agent adding control device. According to the agent adding control device and method, automatic control over the quality of a denitration catalyst regeneration agent can be achieved, the regeneration quality of the catalyst is improved, manual participation is reduced, and the working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of SCR denitrification, and in particular relates to a drug dosing control device and a drug dosing control method in a denitrification catalyst regeneration process. Background technique [0002] At present, most boilers and kiln equipment are equipped with SCR denitrification devices in the tail flue, and the core component of the SCR denitrification device is the SCR catalyst. However, since the SCR catalyst denitrates the flue gas at the tail of the boiler and kiln, its working environment is very harsh. In such a harsh environment, the SCR catalyst will gradually accumulate dust and be poisoned, which will gradually reduce the performance of the catalyst, which may lead to failure of the entire unit operation. The SCR catalyst regeneration technology cleans the catalyst dust and other adsorbed impurities to restore the catalytic performance of the catalyst. [0003] At present, catalyst regeneration i...

AI Technical Summary

Problems solved by technology

Catalyst regeneration cleaning agent contains a variety of components. As the regeneration process progresses, various agents are consumed at different speeds, and their dosing intervals are also different. The ratio will gradually change, affecting the cleaning effect

In addition, with such a complicated dosing process, manual dosing often leads to wrong dosing intervals and wrong dosing, which makes it difficult to control the quality of the medicine in the regeneration process

[0004] Nowadays, the process of dosing and configuring the solution in the catalyst regeneration pool still adopts manual dosing and dispensing. There are some problems in this way: (1) Every time dosing, the medicine must be weighed manually, and then added to the catalyst regeneration In the pool, the efficiency of adding medicine is low and error-prone; (2) Some medicines are easy to stick to the skin, which will cause great damage to the skin, but manual dispensing is likely to cause splashing of the medicine, which is a potential hazard to workers

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