Why activated alumina and molecular sieve adsorbent broken and be dust in the dryer?

1. The adsorbent contact water, the compressive strength is reduced;
2. The filling of adsorbent is not tight, leads to the friction of molecular sieve and activated alumina;
3. The pressure equalizing system is not or blocked, and the pressure is too large;
4. The compressive strength of the product is affected by the use of stirling bar for filling;
5. The product itself has quality problems and its strength is unqualified.