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Brief discussion on the key points of repairing the damage of glass lined reaction kettle by acid resistant mastic method

Main components and applications of glass lined concentration crystallization kettle

Since the mixing shaft is rotating and the kettle head is stationary, there must be a gap at the place where the mixing shaft extends out of the head, so the medium will leak or air will leak into the kettle. Therefore, it must be sealed, which is called “shaft seal” (the sealing at the position where the shaft extends out of the device is called shaft seal), so as to maintain the pressure (or vacuum degree) in the equipment and prevent the escape of reaction materials and the detection of impurities. Packing seals or mechanical seals are usually used.

Mechanical seal is a device that uses the planes of two sealing elements perpendicular to the shaft to fit each other (depending on medium pressure or spring force) and make relative movement to achieve the purpose of sealing, also known as end face seal. It has the advantages of low power consumption, low leakage rate, reliable sealing performance and long service life. Mechanical seals are mainly used in corrosive, flammable, explosive, highly toxic and solid particle containing media

Pressure equipment and vacuum equipment working in, including shaft seal of stirred reactor.

In addition to the main structures of the above parts, Manholes, handholes and various connecting pipes need to be installed and welded in order to facilitate the maintenance of internals, feeding and discharging. In order to effectively monitor and control the temperature and pressure of materials during operation and ensure safety, thermometers, pressure gauges, sight glasses, safety relief devices, etc. shall be installed.