Mbeto ya malili oyo ezali kotɔka .

With the continuous improvement of the℃of mechanization and automation in molding, the demand for molding sand has increased, and the recycling time of used sand has thus been greatly shortened. Many foundries' molding sand lines do not have sufficient sand cooling equipment set up in the sand treatment system, resulting in the problem of excessively high temperature of reused used sand during hot summers and full-load operation. Excessively high temperature of molding sand can cause a series of difficulties in Production, lokola performance instable ya sable ya moulage, adhésion facile na modèle mpe trémie ya sable, déshydratation facile ya surface ya moule, oyo ememaka na augmentation ya taux ya déchets ya ba coulées mpe détérioration ya ba conditions ya mosala, etc. mbeto ya refroidissement ya bouillon ezali précisément conçu mpo na ko améliorer température eleki makasi ya zelo ya kala{4}}

In the past, the cooling of old sand was mostly achieved by using cooling rollers, increasing the length of the old sand conveyor belt and expanding the intermediate sand storage hopper, etc. These often have unsatisfactory effects. The boiling cooling bed has improved the previous method that mainly relied on air convection for heat dissipation and natural cooling. It uses strong cold air to keep the sand at a certain temperature

Ezalela oyo ya kotɔka ezali na boyokani mobimba na échangeur ya molunge oyo etyami likoló ya plaque ya kotɔka, oyo ezali kopesa nzela na koleka ya zelo mpo na kosala échange ya molunge ya mibale. na kotambwisáká pression ya mopɛpɛ oyo euti na bisaleli mpo na kosala pression négative, na ngámbo moko, koleka ya zelo ekoki kokende liboso malamu, mpe na ngambo mosusu, mputulu ya mikemike oyo ezali na kati ya mai ya zelo ekoki kozwama mosika{1}}

(1) Esika ya bokutani oyo ebakisami kati na biloko ya makasi ya mopepe mpe ya granulaire elendisaka botindiki ya masse mpe ya molunge, kotombolaka mingi effet ya refroidissement.

(2) Couche ya mbeto ezali na état ya mouvement libanda, oyo ekoki kobatela température uniforme mpe koboya surchauffe local.

(3) Ba particules oyo ezali kosopana ekoki kobakisa to kolongola yango na pɛtɛɛ nyonso kozanga ete ezala na bopusi likoló na réaction, oyo ekoki kosala ete mosala yango ezala seko.