1、 Precautions for using reaction kettle

1. Strictly operate according to the system

Strictly regulating the operation of the system is the most basic requirement for operation. Before operating a chemical reactor, it is necessary to understand the standard operating procedures of the equipment. Although the specification information provided in the equipment manual is not very detailed, there are some regulations that must be followed in order to ensure the safety of equipment operation.

2. Pre operation inspection

Before operating the chemical reaction kettle, it is necessary to inspect the equipment for any abnormalities. If the device is operating normally, the upper cover and touch panel must not be opened to avoid electric shock. It is strictly prohibited to operate under pressure during operation, as this not only damages the equipment but also poses a safety hazard. During the nitrogen pressure test, attention should be paid to its changes to avoid excessive pressure.

3. Pay attention to observation

When operating a chemical reactor, pay attention to observation and observe every step of the operation. Especially when the reaction kettle is heated to a certain stability, it must not come into contact with the kettle body to avoid burns. After the experiment is completed, the first step is to cool down and wait for the temperature to cool down to avoid equipment damage caused by excessive temperature. In addition, the power should be unplugged in a timely manner.

4. Pay attention to maintenance

Equipment operation should not only focus on the operation process, but also on equipment maintenance. Equipment maintenance is not an easy task. Only by learning how to maintain can equipment perform well and extend its service life. Otherwise, it will seriously affect the operational performance of the equipment.

　　2、 Fire and explosion prevention technical measures for reaction vessels

1. Prevent leakage of reaction materials

The "emission and leakage control" items in general process hazards, as well as the "toxic substances", "quantity of flammable and unstable substances", "corrosion", "leakage connection and packing" items in special process hazards, are all related to leakage. Measures must be taken to reduce the leakage rate, thereby reducing the risk of fire and poisoning. The equipment should be selected reasonably, with reduced corrosion, carefully maintained, and protected in good operating condition.

2. Control reaction temperature

The reaction temperature is the main parameter for controlling the oxidation reactor process. When the required heat transfer surface per unit volume of the liquid-phase oxidation reactor is large, it is not advisable to install the heat transfer device inside the reactor. An external circulation cooler should be used, especially in large-scale production.

3. Resist the explosion hazard of reactive materials

When instruments or devices malfunction and the concentration of materials in the reactor is within or near the combustion range, the risk factor for "operations within or near the flammable range" in special process hazards will increase. Measures should be taken to resist the explosion hazard of reactive materials. The raw material mixer is placed near the inlet of the reactor to ensure that the raw materials enter the reactor immediately after mixing in the mixer, reducing the space where explosions may occur. The oxidation reaction carried out under conditions close to the explosive limit should strictly control the mixing ratio of the feed gas with air or oxygen. The production equipment should have automated control instruments and safety interlock alarm devices for component analysis. In addition, separate feeding of raw gas and oxygen or air can be adopted to avoid the formation of explosive mixtures.

4. Configure security protection and fire prevention facilities

The fire and explosion hazards inside the reaction vessel are very high, and many safety devices and fire prevention facilities are used in the design to compensate, which reduces the actual hazard level by several levels. Therefore, in production practice, it is necessary to attach great importance to the integrity and utilization rate of safety devices. Otherwise, the danger level of the device will increase.