Yunfu reaction kettle PU kettle is easy to operate and maintain

Description :

　　Operating procedures for stainless steel reaction kettle:

　　Before starting the stainless steel reactor

　　1. Check whether the kettle, mixer, rotating parts, auxiliary equipment, indicating instruments, safety valves, pipelines and valves meet safety requirements.

　　2. Check if water, electricity, and gas meet safety requirements.

　　Stainless steel reactor is in operation

　　1. Before adding materials, the mixer of the reaction kettle should be turned on first. When there is no noise and it is normal, the materials should be added to the reaction kettle, and the amount of materials added should not exceed the process requirements.

　　2. Before opening the steam valve, first open the return valve, and then open the intake valve. The steam valve should be opened slowly to preheat the jacket and gradually increase the pressure. The pressure inside the jacket should not exceed the specified value.

　　3. The steam valve and cooling valve cannot be started simultaneously, and hammering and collision are not allowed when the steam pipeline is out of air.

　　4. When opening the cooling water valve, first open the return valve, and then open the inlet valve. The cooling water pressure shall not be lower than 0.1 megapascals, nor shall it be higher than 0.2 megapascals.

　　5. The water ring vacuum pump should be started before supplying water. When stopping the pump, the pump should be stopped first and then the water should be stopped, and the accumulated water in the pump should be drained.

　　6. Check the operation of the reaction kettle at any time and stop for maintenance if any abnormalities are found.

　　7. When cleaning the titanium epoxy (enamel) reaction vessel, do not use alkaline water to brush the reaction vessel, and be careful not to damage the enamel.

　　Installation and operation specifications for reaction kettle

　　1. The high-pressure reactor should be placed indoors. When equipping multiple high-pressure reactors, they should be placed separately. Each operating room should have an exit directly leading to the outside or passage, and the equipment grounding point should be ensured to have good ventilation.

　　2. When installing the kettle cover, it is necessary to prevent the sealing surfaces between the kettle body and the kettle cover from colliding with each other. Carefully place the kettle lid in a fixed position on the kettle body, and when tightening the main nut, it must be tightened diagonally and symmetrically in multiple steps. Apply even force and do not allow the kettle lid to tilt to one side to achieve a good sealing effect.

　　3. At the joint of the positive and negative nuts, only the positive and negative nuts are allowed to be rotated, and the sealing surfaces of the two circular arcs must not be rotated relative to each other. When all nut pattern connections are assembled, lubricating oil should be applied.

　　4. The needle valve system is sealed with a thread. Simply rotate the valve needle gently and press the cover tightly to achieve a good sealing effect.

　　5. Rotate the rotating body on the kettle by hand to check if it operates flexibly.

　　6. The controller should be placed flat on the operating platform, with a working environment temperature of 10-40 ℃ and a relative humidity of less than 85%. The surrounding medium should not contain conductive dust or corrosive gases.

　　7. Check whether the movable parts and fixed contacts on the panel and back panel are normal, remove the cover, and check whether the connector contacts are loose, whether there is damage or rust caused by poor transportation and storage.

　　8. The controller should be reliably grounded.

　　9. Connect all wires, including power lines, electric furnace lines between the controller and the kettle, motor lines, temperature sensor and speedometer wires.

　　10. Close the "power" air main switch on the panel, and the digital display should show.

　　11. Set various parameters (such as upper limit alarm temperature, working temperature, etc.) on the digital display, then press the "heating" switch to turn on the electric furnace, and the indicator light on the "heating" switch will light up. Adjust the "pressure adjustment" knob to adjust the heating power of the electric furnace.

　　12. Press the "Mixing" switch to power on the mixing motor, and the indicator light on the "Mixing" switch will light up. Slowly turn the "Speed Control" knob to make the motor rotate slowly, observe whether the motor is rotating in the forward direction, and when there is no error, stop the machine, hang the belt, and restart.

　　13. After the operation is completed, it can be cooled naturally, cooled with water, or placed on a bracket for air cooling. After the temperature drops, release the pressurized gas inside the kettle to reduce the pressure to atmospheric pressure (the pressure gauge shows zero). Then, loosen the main nut symmetrically and evenly, remove the main nut, and carefully remove the kettle cover and place it on the bracket.

　　When using a stainless steel reactor, the refrigerant inlet valve must be closed, the remaining refrigerant in the pot and jacket must be drained, and then the material must be input. The mixer should be started, and then the steam valve and electric power supply should be turned on. After reaching the desired temperature, the steam valve and electric power supply should be turned off first. After 2-3 minutes, the mixer should be turned off. After processing is completed, the remaining condensed water in the pot and jacket should be drained, and the sticky material should be washed away as soon as possible with warm water. Then, the inner wall of the container should be thoroughly cleaned with 40 ℃ -50 ℃ alkaline water, and rinsed with clean water. Especially when there is no material (heat absorbing medium) in the stainless steel reactor pot, the steam valve and electric power supply should not be turned on. Pay special attention to the use of steam pressure. Do not exceed the rated work pressure.

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