Be careful! Three wrong operations that may cause explosion of double glass reaction kettle

It is very long and dangerous for the double glass reaction kettle to explode porcelain, which threatens people's life and property in the production test It is urgent to master the causes of the double glass reaction kettle to explode porcelain and effectively control the occurrence of this phenomenon: first, the violent reaction of materials will cause the reaction kettle to explode porcelain Some chemical reactions are exothermic When the reaction temperature is higher than the specified temperature, a large amount of gas is produced by the material cracking reaction, which makes the pressure in the reactor increase sharply, so that the inner wall of the double glass reactor is deformed, resulting in a large area of porcelain explosion Solution: first, pay attention to control the change of reaction temperature of materials during operation to prevent violent reaction caused by over high temperature; second, install pressure relief device to automatically reduce pressure when the pressure in the kettle increases In the other case, a large amount of reaction heat is generated at the moment of contact between the two materials When the materials are close to the wall of the kettle, the exothermic heat will cause a sharp change in temperature difference, which will cause multiple point shaped porcelain explosions Second, the overpressure of the jacket will cause the reaction kettle to explode When the steam output from the power plant is used by chemical enterprises to supply heat for production, the steam output from the power plant can only be used after pressure reduction Once the pressure reducing valve fails, or the safety valve of the steam buffer tank fails, the high-pressure steam output from the power plant is directly transmitted to the jacket of the double glass reaction kettle, resulting in overpressure of the jacket, and large area of porcelain explosion caused by unstable bulge of the kettle wall due to external pressure Solution: add a pressure reducing valve on the basis of the existing pressure reducing device L, and change the primary pressure reducing to the secondary pressure reducing, so as to achieve double insurance In addition, the working condition of the pressure reducing valve should be checked frequently, and it should be replaced immediately in case of any problem Some should check whether the steam safety valve is in the correct working state, especially the spring safety valve should keep it in a clean environment, without corrosion or jamming 3 The poor control of enamel temperature will cause the explosion of double glass reaction kettle The lining furnace is a controllable temperature electric furnace The controllable temperature electric furnace is composed of several heating elements The temperature of each heating zone is controlled by computer The temperature difference between the zones is very small The equipment fired by this furnace will not be burnt or burnt However, many domestic glass lined equipment manufacturing enterprises are backward in production equipment, most of them do not have controllable temperature furnaces, and some enterprises are still using coal furnaces In order to save cost, the enamel with high melting point and low price is used The enamel firing process adopts "high temperature and fast firing" instead of "low temperature and long firing" and "slow cooling after firing" As a result, the enamel firing temperature of the glass equipment is not well controlled, either the temperature is high, a large number of air holes appear in the low glaze firing, or the temperature is low, and the bottom glaze is not fused with the steel plate and the enamel layer.