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Urea formaldehyde resin dryer
Urea formaldehyde resin is semi transparent, also known as urea formaldehyde resin, abbreviated as UF. It is resistant to weak acids and bases, has go
Product details
summary:
Urea formaldehyde resin is semi transparent, also known as urea formaldehyde resin, abbreviated as UF. It is resistant to weak acids and bases, has good insulation performance, excellent wear resistance, and is inexpensive. Mainly used for manufacturing molded plastics, daily necessities and electrical components, it can also be used as board adhesive, paper and fabric slurry, veneer, building decorative panels, etc. Spray drying is widely used in liquid forming and drying industries. It is suitable for generating powdery and granular solid products from solutions, lotion, suspensions and pumpable paste liquid raw materials. Therefore, spray drying is a very ideal process when the particle size distribution, residual water price content, bulk density and particle shape of the finished product must meet accurate standards.
working principle:
After being filtered and heated, the air enters the air distributor on the top of the dryer, and the hot air enters the drying chamber in a spiral shape evenly. The feed liquid is sprayed (rotated) by the high-speed centrifugal atomizer on the top of the tower body to form extremely fine atomized liquid beads that are in parallel contact with the hot air, and can be dried into finished products in a very short time. The finished product is continuously discharged by the exhaust gas from the bottom of the drying tower and the cyclone separator through the fan.
characteristic:
1. Fast drying speed, the surface area of the material liquid is greatly increased after atomization. In the hot air flow, 95% -98% of the water can be evaporated instantly, and the drying time is only a few seconds. It is particularly suitable for drying heat sensitive materials
2. The product has good uniformity, fluidity, and solubility, high purity, and good quality,
3. The production process is simplified and the operation control is convenient. For liquids with a moisture content of 40-60% (up to 90% for special materials), they can be dried into powder products in one go without the need for crushing or screening after drying. Reducing production processes, improving product purity, and adjusting and managing product particle size, bulk density, and moisture within a certain range by changing operating conditions are all very convenient.
Technical parameters:
| project | 5 | 25 | 50 | 100 | 150 | 200 | 500 | 800 | 1000 | 2000 | 3000 | 4500 | 6500 |
| Inlet temperature (℃) | 140-350 self-control | ||||||||||||
| Export temperature (℃) | 80-90 | ||||||||||||
| Spray form | High speed centrifugal atomizer (mechanical transmission or stepless variable frequency speed regulation available for selection) | ||||||||||||
| Water evaporation rate (kg/h) | 5 | 25 | 50 | 100 | 150 | 200 | 500 | 800 | 1000 | 2000 | 3000 | 4500 | 6500 |
| Atomizer speed (rmp) | 25000 | 22000 | 21500 | 18000 | 16000 | 12000-13000 | 11000-12000 | ||||||
| Atomizing disc diameter (mm) | 60 | 120 | 150 | 180-210 | Determine according to process requirements | ||||||||
| Electric heating power (kw) | 8 | 31.5 | 60 | 81 | 99 | ||||||||
| Dry powder recovery rate (%) | ≥ 95 | ||||||||||||
| Land occupation length (m) | 1.6 | 4 | 4.5 | 5.2 | 7 | 7.5 | 12.5 | 13.5 | 14.5 | Determine based on the process flow, site conditions, and user requirements | |||
| Floor width (m) | 1.1 | 2.7 | 2.8 | 3.5 | 5.5 | 6 | 8 | 12 | 14 | ||||
| Tower height (m) | 1.75 | 4.5 | 5.5 | 6.7 | 7.2 | 8 | 10 | 11 | 15 | ||||
| Nozzle lifting height (m) | -- | 2.5 | 2.5 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | ||||
Note: The evaporation rate of water is related to material characteristics, solid content, and the inlet and outlet temperatures of hot air. The heating method can be selected according to the local energy consumption, and the dust collection and removal method can be chosen based on the material characteristics. | |||||||||||||
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