Comprehensive Guide to Cleaning Residual Gel in Reactor Vessel

The reactor, as the core equipment in fields such as chemical industry, pharmaceutical production, and fine chemical production, the cleanliness inside directly affects the quality the product and the production efficiency. During continuous or batch production, the reaction material often remains on the reactor wall, agitator, and other attachments, forming difficult-to- residual glue. Not only can these residues affect the reaction efficiency and product quality of the next batch, but they may also cause corrosion to the equipment, shortening its service. Therefore, it is essential to master effective methods for cleaning residual glue from the reactor. Here, Jinchong Enterprise will introduce several common techniques for cleaning residual glue from the reactor their precautions in detail to ensure the safety and efficiency of the production process.

1. Physical cleaning method

　　(1) Manual cleaning: suitable for small reactors or local residue. Use tools such as scrapers and brushes to directly remove the residual substances adhered to the inner wall. This method has high labor intensity and low efficiency, but it has relatively low cost and is suitable for infrequent cleaning needs.

　　(2) High-pressure water flushing: using high-pressure water flow to impact the residual glue, suitable for residues with better water solubility. High-pressure water jet can effectively remove surface loose residues, but it should be used with caution when there is a risk of damage to stubborn residues or equipment.

　　(3) Mechanical stirring cleaning: add appropriate amount of cleaning agent and water to the reactor, start the stirrer for circulating cleaning. Suitable for residues with certain fluidity, the cleaning efficiency is high, but it is necessary to ensure that the cleaning agent is compatible with the material in the kettle to avoid chemical reactions.

2. Chemical cleaning method

　　(1) Acid-base cleaning: For specific types of residues, select the appropriate acid or base solution for soaking or circulating cleaning. For example, use dilute hydrochloric acid to remove alkaline residues and sodium hydroxide solution to treat acidic residues. During operation, it is necessary to strictly control the concentration and temperature to prevent equipment corrosion.

　　(2) Solvent cleaning: For organic residues insoluble in water, appropriate organic solvents (such as ethanol, acetone, etc.) can be used for cleaning. This method has a good cleaning effect, but it is necessary to pay attention to the toxicity, flammability and volatility of the solvent, and ensure good ventilation conditions.

3. Ultrasonic cleaning method

　　Using the high-frequency vibration generated by ultrasound, small bubbles are formed in the liquid and burst instantly, producing strong local energy, which can peel off the residual glue attached to the surface of the equipment. Ultrasonic cleaning is suitable for complex-shaped reactors with many small holes, thoroughly cleaning and causing little damage to the equipment, but the equipment investment cost is high.

4. Cleaning Precautions

　　Safety First: Before any cleaning operation, it is necessary to completely empty the materials in the reactor,ilate, and ensure no toxic or harmful gases remain.

　　Environmental Protection: The waste liquid generated during cleaning must be collected and treated in accordance with environmental protection requirements and must not be discharged arbitrarily.

　　Equipment Protection: When selecting cleaning agents, consider their compatibility with the reactor material to avoid corroding the equipment.

　　ing Verification: After cleaning, the cleaning effect should be verified through visual inspection, pH test paper testing, or more professional detection methods to ensure no residue.

　　In, the removal of residual glue in the reactor is a process involving multiple means of physical and chemical methods. It is necessary to consider the nature of the residue, the specific conditions of equipment, and the production requirements comprehensively, and to adopt the most appropriate cleaning strategy. Correct cleaning not only improves production efficiency but also extends the life of the equipment, ensuring safety and product quality.