As a Formaldehyde Production Plant, there is some information
to share with you. In the process of formaldehyde production, it sometimes
causes over-temperature phenomenon. Based on the actual experience in the
production process, I made the following analysis:
01
The steam drum pressure suddenly drops, the batch steam is reduced,
sometimes the water is added too fast, the steam drum is full of water, and some
instruments fail. Slowly add water, increase the steam pressure, properly
increase the batch steam, check whether the meter is normal;
02
The evaporator liquid level is too low, the evaporation amount is too
small, and it is easy to cause over-temperature. The methanol feed amount should
be appropriately increased to make up the normal liquid level;
03
If the meter fails, the air flow suddenly increases, and it is also very
easy to overheat. The air volume should be reduced immediately, the instrument
should be repaired, and normal production should be resumed.
04
Sometimes when people do not operate properly, they should strengthen their
work and do a good job in pre-natal practical training.
05
The reboiler process has a low equilibrium concentration and is also easy
to over temperature. Sometimes the methanol content is low or the use of crude
alcohol, sometimes leaking water and steam, should immediately test the methanol
content, replace the use of refined alcohol, and check whether the tube leaks
and steam;
Formaldehyde Production Process
Extended production cycle of Formaldehyde production process
In the Formaldehyde Production Process, in order to be
safer, more efficient, less expensive, and extend the driving cycle, it is
important to pay attention to it.
Do all the preparatory work before driving, and check the maintenance of
water, electricity, steam and equipment;
It is necessary to turn off the good raw materials, unqualified methanol
does not unload the goods, and avoid direct poisoning of the catalyst;
Air filtration should be thorough, change the air filter bag frequently,
and regularly check and replace the ternary high-efficiency filter;
Circulating water and steam drum water should be treated with reverse
osmosis to prevent impurities from entering the catalyst chamber, resulting in
increased system resistance;
Strictly control the process parameters, adjust the aerobic ratio and the
concentration of the ingredients. When the alcohol content is 0.5% and the acid
content is 0.006% or less, the oxygen temperature is controlled at about 625
°C;
When emergency stop is caused by power failure, it is necessary to change
the call and return to the vehicle;
If the catalyst is poisoned or the resistance is too large, 10 kg of
catalyst can be extracted per square, and then 6 to 8 kg of new catalyst can be
replenished per square.
When the ignition is started, the ratio of aerobic to alcohol should be
controlled, and the temperature increase should be increased steadily. Do not
overheat;
Do routine maintenance, daily inspections, and find problems in a timely
manner;
To do the above, we usually have a driving cycle of three to four months,
and a cycle of 37% formaldehyde consumption is 440 kg.
Our company moved, the new address is located at 908, Block B, Jiaye
Fortune Center, Financial Third Street. Our company's new produce Urea
Formaldehyde Glue Plant, welcomes you if necessary.
