Dry ice refers to solid carbon dioxide. Dry ice is liquefied into a colorless liquid through professional dry ice production equipment under pressure of 6250.5498 kPa. It is then quickly solidified under low pressure. When using dry ice, dry ice does not generate new carbon dioxide. Only the original carbon dioxide is released. Therefore, dry ice is carbon-neutral and will not pollute the environment. At present, dry ice has been widely used in mold cleaning, electricity, food, pharmaceuticals, cold chain transportation, stage, etc.
How is dry ice produced?
Malighafi ya barafu kavu ni dioksidi kaboni ya kioevu. Na kaboni dioksidi ni bidhaa inayozalishwa katika mchakato wa uzalishaji wa viwanda. Dioksidi kaboni inayozalishwa katika uzalishaji wa viwanda inaweza kusafishwa, kwa maji, na kuhifadhiwa ili kuzalisha barafu kavu. Hasa, biashara ya kisasa imetokeza mashine ambayo ni mtaalamu wa kutengeneza barafu kavu, yaani, mashine kavu ya barafu. Mashine kavu ya kutengeneza barafu inahitaji tu kuweka kaboni dioksidi kioevu kwenye mashine ili kutoa barafu kavu kiotomatiki. Maumbo ya barafu kavu inayozalishwa ni punjepunje na uvimbe.
Two forms of dry ice: dry ice cubes, pellets
There are two types of machines for producing dry ice, one is for dry ice cubes, and the other is for dry ice pellets. The dry ice block production machine can process liquid carbon dioxide into block-shaped dry ice. Block dry ice has a large volume, weighing about 250g~500kg, and it is not easy to melt. Therefore, block dry ice is usually used for long-term cold chain transportation.
Uzalishaji wa barafu kavu ya punjepunje ni 3 ~ 19mm, na ujazo ni mdogo. Kwa hiyo, barafu kavu ya punjepunje kwa ujumla hutumiwa kwa upishi, kusafisha, kuhifadhi joto, utoaji wa anga ya hatua, na madhumuni mengine.
Similarities and differences between dry ice cubes and pellets
Similarities
Vipande vya barafu kavu na pellets zote mbili hufanywa kutoka kwa malighafi sawa, dioksidi kaboni ya kioevu. Hawana madhara kwa mazingira na wote wana sifa za kuhifadhi baridi.
Differences
Aina mbili tofauti za barafu kavu hufanywa na mashine tofauti. Mashine kavu ya pellet ya barafu hutumiwa haswa kutengeneza barafu kavu ya pellet. Vipande vya barafu vya kavu vinatengenezwa na mtengenezaji maalum wa mchemraba wa barafu kavu. Aina mbili za barafu kavu pia zina ukubwa tofauti. Na tofauti hii kwa ukubwa hufanya matumizi yao kuwa tofauti kidogo. Ikilinganishwa na barafu kavu ya kuzuia, barafu kavu ya punjepunje ina tete bora. Kwa hiyo, barafu kavu ya punjepunje pia hutumiwa sana kwa kusafisha.