Existing drying equipment, the most is convection heat transfer drying. Such as hot air drying, hot air and the material to be dried in contact with heat exchange to evaporate moisture. Convection dryer representative of the common types of equipment air suspension dryer, such as fluidized bed dryer, flash dryer, air dryer, spray dryer, ventilated dryer, flow dryer, air rotary dryer, stirring draia, paralel flo draia, rotari draia na ol narapela samting long.
Aplikesen tru, i gat singel masin yus, i gat wanpela kombinesen bilong yusim masin, i gat ol model tu i bagarap na olsem long. Ea flo draia, fluidais bet draia, sprei draia, etc. em i hat win olsem hat kari, long draim long wankain taim, i pinisim tu trensfe bilong ol samting. Ol dispela kain draia i gat bikpela mak long pasin bilong no gat ol transmisin pat{3}}} Ol dispela kain draia i gat bikpela mak long pasin bilong i no gat ol transmisin pat{3}}} ol draia i gat bikpela mak long pasin bilong no gat ol transmisin pat{3}}} ol draia i gat bikpela mak long pasin bilong no gat ol transmisin pat{3}}} Ol draia i gat bikpela mak long pasin bilong no gat ol transmisin pat{3}}} Ol draia i gat bikpela mak long pasin bilong no gat ol transmisin pat{3}}} Ol draia i gat bikpela mak long pasin bilong no gat ol transmisen pat{3}}”.
The most common way to dry powder, granule and flake materials is to apply hot air or gas flow on the surface of the granule. The passing gas stream transfers heat to the material, causing the water to evaporate. The evaporated water vapor goes directly into the air to be taken away, to the drying system commonly used drying media are air, inert gas, direct combustion gas or superheated steam.
The method makes the hot air and material direct contact, while heating and removing water. The key is to improve the contact area between the material and the hot air to prevent the hot air bias flow. The temperature of the material during the constant speed drying is almost the same as the wet bulb temperature of the hot air, so the use of high temperature hot air can also be used to dry heat-sensitive materials. This drying method drying rate is high, less investment in equipment, tasol thermal efficiency i liklik, dispela em i as sindaun bilong ol kain kain konveksen draim ikwipmen.
(1) Boks-taip drai moa
It is one of the oldest dryers. The material is loaded with the plate, the plate is placed in the frame car layer by layer discharge into the steam or electricity as a heat source, the hot air in the box can be circulated and part of the discharge, in order to make the drying more uniform. Although the thermal efficiency is low, but still in a large number of use, but also continue to manufacture, because the structure is simple, the operation is not often care no obvious hevi. Tasol planti samting bilong draim samting bilong tanim plet, tanim paura, ol samting i save pilim hat i isi long senisim kala, tasol tu i no inap long draim ol samting wantaim ol solvent. Bikos long bungim bilong ol samting, insait leya bilong hat trensfe, mas trensfe i no gutpela, na olsem mak bilong draim i no gutpela, na olsem na mak bilong draim i no gutpela tumas, na olsem na mak bilong draim i no gutpela tumas, na olsem na mak bilong draim i no gutpela tumas, na olsem na mak bilong draim i no gutpela tumas, na olsem na mak bilong draim i no gutpela tumas, na olsem na mak bilong draim i no gutpela tumas, na olsem na mak bilong draim i no gutpela tumas, na olsem na mak bilong draim i no gutpela tumas.
(2) Rum bilong draim tanel taip draim
Ol i save putim ol samting long wanpela spesel kar, na ol inap long mekim ol samting i go insait na ausait long tanel, long rot bilong skruim autput na kamapim gut wok bilong thermal . Ol narapela straksa i wankain olsem bokis drair.
(3) Mesh belt draia
Can be used for drying corn, grains, vegetables and so on. This machine is equipped with stainless steel wire mesh transmission belt, the material moves with the belt, can be heated in sections. The device to each section 1.8 ~ 2m long as a unit, the longest can be connected to 40m, the hourly capacity can be as high as 4t. Constant rate of draim stej bilong hot ea tempereja i go inap long 130 digri , eksos relatif humiditi inap long 85%.
(4) Planti-leia tabin draia
Straksa bilong em em i wanpela vertikal gaden silinda, i gat sampela leit bilong turntebol, ol samting i ken go insait long antap, leit i go daun long daunbilo bilong rilis{{0} Hot win long daunbilo bilong introdaksen, putim antap long namel bilong silinda long wanpela namba bilong blowa tabin impela segmentesen saikel win, na mak bilong hat bilong win i kamap gutpela moa long hat bilong hat bilong hat na i go long ples bilong hatim win i go long ples bilong hatim win i go long ples bilong hatim hat bilong hat bilong hat bilong hat na i go long ples bilong hatim win i go long ples bilong hatim hat bilong hat bilong hat na i go long ples bilong hatim win bilong hat bilong hat bilong hat na i go insait draim reit. Tasol, ol ikwipmen i no isi long klinim, long kamapim planti kain kain na ol i mas mekim ol klinpela samting i mas i gat hatwok moa.