A kind of monosodium glutamate production resin column decolorization automatic control system and its automatic control method

Abstract

The invention proposes an automatic control system for resin column decolorization in monosodium glutamate production. The top of the resin column decolorization tank is connected to the main feed pipe and the backwash discharge pipe, and the bottom is connected to the backwash feed pipe and discharge pipe; the feed pipe is connected to the feed pipe. The feed connecting pipe is equipped with a feed regulating valve and a feed flow meter, which are respectively connected to the clean water / white crystal / hot water feed pipes, and the backwash feed pipe is connected to the backwash air feed pipe and the backwash communication pipe , the backwash connecting pipe is connected to the feed connecting pipe near the end of the feed regulating valve, the discharge main pipe is equipped with a discharge regulating valve, an online detector and a discharge flow meter, and its end is connected to the pressure column water discharge pipe, white crystal outlet Feed and drain pipes. The automatic control method is also proposed, including the steps of white crystal loading, white crystal pressing, one-time loading, one-time pressing, resin column backwashing, brine regeneration, and brine washing. The invention realizes the automatic control of the decolorization of the resin column, and greatly improves the automation level of the decolorization process, production stability and product quality.

Description

technical field [0001] The invention relates to the technical field of monosodium glutamate production, in particular to an automatic control system using a resin column decolorization process in a monosodium glutamate production process, and an automatic control method using the system. Background technique [0002] At present, the domestic monosodium glutamate production process mainly uses resin columns for decolorization. The main process of the general resin column decolorization process is: material loading to the column (materials include white crystal, one-time needle, and less-time needle), material pressure column, backwash, acid Wash, brine regeneration, wash brine. Among them, the white crystal is a sodium glutamate solution formed after the neutralization of glutamic acid and soda ash, and its light transmittance is usually ≥ 95%; the white crystal enters the crystallization tank after decolorization, and the mother liquor obtained by crystallization and solid-l...

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Problems solved by technology

[0004] In order to improve the automation level of monosodium glutamate production and ensure the quality of products, the present invention provides a monosodium glutamate production resin column decolorization automatic control system and the automatic control method implemented by the automatic control system, which solves the key process parameters of monosodium glutamate resin column light transmission The problem of online detection of degree and Baume degree can realize the automatic control of each process step in the resin column decolorization process, so that the resin column decolorization process avoids manual operation errors from the root, and removes the impact of manual operation on process stability and product quality. Adverse effects, greatly improving the automation level of the resin column decolorization process, greatly improving the process stability and product quality of the resin column, reducing the labor intensity of operators, and improving the economic benefits of the enterprise

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