Vacuum tray dryer to adapt to materials:
Closed recovery solvent tray continuous dryer process is suitable for the recovery of solvent drying process and the moisture is flammable, explosive, toxic substances, can not be directly discharged into the atmosphere, the recovery process must be dried. Such as wet parts of methanol, ethanol, gasoline, pyridine, petroleum ether, halogenated hydrocarbons, acetone, formaldehyde and so on. On the basis of the basic configuration, adding a continuous material out of the stopper, condenser, solvent receiving tank and vacuum pump. The moisture (solvent vapor) escaping from the desiccator enters the solvent back from the top of the desiccator

Close the condenser, the cooling medium in the cooling of the condensate into a solvent liquid, into the solvent receiving tank, not

The condensate gas leaves the solvent receiving tank and is evacuated by the vacuum pump. Cooling medium should be based on the characteristics of the solvent, the choice of cooling water or cold brine.

1 Wet material 2 Dosing feeder 3 Continuous ball valve feed 4 Vacuum tray dryer 5 Condenser 6 Heating medium inlet 7 Heating medium outlet 8 Solvent receiver 9 Vacuum pump 10 Dried product 11 Cooling medium inlet 12 Cooling medium inlet 13 Exhaust gas exhaust

Vacuum Dish Dryer Nitrogen Gas Replenishment Principle: The nitrogen-circulating disk-type continuous dryer process is suitable for particularly susceptible to oxidation, especially for flaming, explosive and highly toxic substances. On the basis of the basic configuration, equipped with solvent condensers, solvent receiving tank, inert gas recycling machine, fin heater, inert gas tank and other equipment. Wet material from the quantitative feeder through a continuous stopper added to the dryer, from top to bottom movement to complete the drying process. Dry material is discharged from the bottom of the dryer through a continuous stopper. The moisture which escaped from the material enters the condenser from the top of the dryer to condense into a liquid and flows into the solvent receiving tank. The cooled inert gas is sent to the dryer by a circulating machine Inside the device, absorb the wet material into the condenser to re-cool, forming a closed loop. The inert gas is preheated by the fin heater before it enters the dryer. The inert gas tank replenishes the system with depleted nitrogen.

Vacuum tray dryer material parameters
 1. Material: Ginkgo biloba soaked particles
   Wet handling capacity: 750 kg / h
2. Moisture content before drying: 60% (wet basis) (70% ethanol, 30% water)
3. Moisture content after drying: 0.5% (wet basis)
4. Dried bulk density: ~ 0.3g / mL
5. Particle size: 3-10mm
6. Drying temperature: 140-150 ℃
7. Feed temperature: 70 ℃
8 out of the material temperature: 100 ℃
9. Heat source requirements: steam
10. Material: The mainframe interior and exterior 304, the rest is carbon steel spray paint
11. Installation: indoor
12. Power: 380V 50HZ three-phase five-wire
13. Environment: 20 ℃ 760mmHg φ = 80%
14. Drying methods: continuous vacuum disk drying
Process calculation:
 t feed = 70 ° C t = 100 ° C (when dried)
(1) G wet = 750 kg / h
(2) G dry = 301kg / h
(3) Solvent evaporation amount: W = 449 kg / h
(4) The necessary heat to evaporate the solvent: Q1 = 267155 kcal / h (calculated according to the latent heat of vaporization of water)
(5) The necessary heat of dry material heating: Q2 = 3612kcal / h
(6) The heat of solvent heating in wet material Q3 = 22500kcal / h
 (7) Total calories: Q total = 293267kcal / h
 (8) Steam consumption: S = 533kg / h
 (9) log average temperature difference: △ TM = 73 ℃ K take 55
(10) Drying area: A = 73M2
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