Shanwei reaction kettle PU kettle reaction is quickly stirred evenly

Description :

　　Regular attention should be paid to the working condition of the entire equipment and reducer when maintaining the stainless steel reactor. If the reducer lubricating oil is insufficient, it should be replenished immediately. The electric heating medium oil should be replaced every six months. Safety valves, pressure gauges, distillation holes, electric heating rods, electrical instruments, and other parts such as the jacket and pot cover should be regularly inspected. If there is a malfunction, they should be replaced or repaired immediately. When the equipment is not in use, it is necessary to thoroughly clean the inner and outer walls of the container with warm water, regularly scrub the pot body, keep the exterior clean and the inner pot bright, and achieve durability.

　　Maintenance of reaction kettle

　　(1) Installation location: The reaction vessel should be installed in a high-pressure operating room that meets explosion-proof requirements. When multiple reaction vessels are equipped, they should be placed separately, and a safe explosion-proof wall should be used to separate each two vessels. Each operating room should have a passage and outlet to the outside, and good ventilation should be ensured when explosive media is present.

　　(2) After opening the packaging, check for any damage to the equipment. Install the equipment according to the structural diagram based on the equipment model, and verify the components provided according to the packing list. If the heating method is thermal oil electric heating, please purchase the corresponding model of thermal oil according to the operating temperature (note: thermal oil does not allow moisture) and add it. When adding, open the oil filling port on the upper part of the jacket and the oil level port on the upper part of the jacket. Add oil through the filling port until the oil level flows out; Twist the oil level port tightly afterwards, do not twist the oil filling port tightly to avoid pressure.

　　(3) Installation and sealing of kettle body and kettle cover: The kettle body and kettle cover are in line contact with the circular arc surface using gaskets or conical surfaces, and are tightly pressed against each other by tightening the main nut to achieve a good sealing effect. When tightening the nut, it must be diagonally symmetrical and gradually tightened multiple times with even force. It is not allowed for the kettle cover to tilt to one side to achieve a good sealing effect. When tightening the main nut, do not exceed the specified tightening torque range of 40-120N. M to prevent the sealing surface from being crushed or overloaded for wear. Special care should be taken for the sealing surface. Before each installation, use a soft paper or cloth to wipe the upper and lower sealing surfaces clean, and be careful not to touch the sealing surfaces of the kettle body and lid. If operated reasonably, it can be used more than tens of thousands of times. After the sealing surface is damaged, it needs to be reprocessed and repaired to achieve good sealing performance. When disassembling the kettle cover, it should be slowly lifted up and down to prevent the sealing surfaces between the kettle body and the kettle cover from colliding with each other. If gaskets (PTFE, aluminum, copper, asbestos, etc.) are used for sealing, a good sealing effect can be achieved by tightening the main nut.

　　(4) The installation of valves, pressure gauges, and safety valves achieves a sealing effect by tightening the positive and negative nuts. The circular sealing surfaces at both ends of the connection must not rotate relative to each other. When assembling all screw connections, lubricant or graphite mixed with oil must be applied to prevent them from biting. The use of valves: Needle valves are line sealed, and good sealing performance can be achieved by gently rotating the valve needle and compressing the sealing surface. Excessive force is prohibited to avoid damaging the sealing surface.

　　(5) After the equipment is installed, introduce a certain amount of nitrogen and maintain pressure for 30 minutes to check for any leaks. If any leaks are found, use soap foam to locate the leakage points in the pipelines and pipe openings. After finding them, release the gas and tighten them. Then, conduct a nitrogen pressure test again to ensure that there are no leaks before starting normal operation.

　　The construction principle and characteristics of a reaction kettle: The reaction kettle consists of a pot body, a pot cover, a stirrer, a jacket, a support and transmission device, a shaft seal device, etc. The material and opening can be customized according to the user's process requirements. Heating methods include electric heating, oil heating, gas heating, water heating (or cooling), open flame heating, etc. The jacket forms are divided into jacket type and outer half tube type, and the jacket oil heating type is equipped with a flow guide device. The mixing forms generally include paddle type, anchor type, frame type, screw type, scraping wall type, etc. The high-speed category includes dispersed impeller, turbine, high shear, and thruster types, for customers to choose according to the process. The transmission forms include ordinary motors, explosion-proof motors, electromagnetic speed regulating motors, frequency converters, etc. The reducers include cycloidal pinwheel, worm gear, and planetary infinitely variable speed. The shaft seal includes ordinary water-cooled packing seal, combined PTFE packing seal, and mechanical seal. The discharge forms include ball valves and downward expansion valves.

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