What is MS enamel reactor

On the production lines of industries such as chemical,pharmaceutical,and food,one can always see a type of"glass lined metal can"-they can withstand high temperature and high pressure conditions,resist the corrosion and invasion of strong acids and alkalis,and even complete complex chemical reaction control.This type of equipment is the MS enamel glass reactor,a"cross-border equipment"that combines the mechanical strength of metal with the chemical inertness of glass.
The MS enamel reactor consists of a three-layer structure:
1.Grassroots:High quality carbon steel or stainless steel such as Q345R and 316L are usually used to provide the required strength and rigidity for the equipment,with a pressure range of 0.1-6.0MPa and a temperature range of-20℃to 300℃.
2.Transition layer:Using metal oxides such as cobalt,nickel,and manganese as raw materials,a dense transition layer is formed on the metal surface through high-temperature sintering to solve the peeling problem caused by the difference in thermal expansion coefficients between glass and metal.
3.Surface layer:composed of high-purity silicon dioxide and a small amount of boron and aluminum oxides,melted at a high temperature of over 1200℃,chemically bonded with the transition layer to form a glassy coating with a thickness of 0.8-2.0mm.
4.Key process:The enamel firing process requires strict control of the temperature curve and atmosphere(such as oxidizing or reducing environments)to ensure that the glass layer and metal substrate achieve"atomic level bonding"with a bonding strength of up to 20-30 MPa.
The chemical inertness of MS enamel comes from its high silicon and low alkali composition:
1.Acid resistance:In strong corrosive media such as 98%sulfuric acid and 40%hydrofluoric acid,the corrosion rate is≤0.005mm/year.
2.Alkali resistance:By adding alumina to form an aluminum silicate protective film,it can operate stably for over 5 years in a 30%sodium hydroxide solution.
3.Anti pollution:The glass surface is smooth,with a residual medium rate of less than 0.01%,avoiding the risk of cross contamination.
4.Comparative data:Under the same operating conditions,the service life of MS enamel reactor is 15-20 times that of ordinary carbon steel equipment and 3-5 times that of stainless steel equipment.
The evolutionary history of MS glass lined reactors is essentially an answer to the eternal question of corrosion resistance in industrial equipment.From manual firing to today's smart factories,from single equipment to system solutions,it has always built a protective barrier for chemical production with the combination of"metal skeleton+glass soul".Under the wave of carbon neutrality and intelligent manufacturing,the MS enamel reactor is transitioning from a"functional device"to a"platform based ecosystem"-redefining the value boundary of industrial equipment through modular design,digital twin,and the integration of circular economy models.This may be the transition of Chinese manufacturing from scale to value.