Pesticide methane, ethanol spray dryer design conditions
Liquid and product conditions
Material Name: Pesticide
Solid content: 30%
Final moisture: 4 - 5% (design take 5%)
Solvent components: methane, ethanol
Liquid temperature: 20 ℃ (ambient temperature, design to take 20 ℃)
Product stacking weight: 0.4g / cm3
Dry product particle size: 80-100 mesh
Parameters and process conditions
Solvent evaporation: 100kg / h
Yield: 46kg / h
Capacity: 146kg / h
Heat source and heating method: Steam + electric heating compensation (0.2-0.4MPa)
Air inlet temperature: 170 ℃ (adjustable)
Exhaust temperature: 50 ℃ (adjustable)
Atomization: Centrifugal
Droplet contact with hot air: parallel flow
Powder capture method: two cyclone + water film dust
Product collection methods: off the wind
System Material Requirements: All 304 stainless steel inside and outside
By the main drying tower, hot air distributor, atomizer, observation manhole, tower lighting, pneumatic percussion hammer, cone jacket cooling system and other components.

The system is the core system.
1, combined with experimental level experience, we in the design process of the main tower: 1, strict calculation atomizer spray distance, and the main tower diameter to do a reasonable amplification, to prevent the material in the pre-drying process of sticky wall Phenomenon; 2, designed a reasonable height ratio of the main tower straight cylinder, in order to ensure adequate material retention time to ensure spray drying effect. 3, adjust the cone taper, from the conventional angle of 60 ° adjusted to 55 °, give full consideration to the material in the cone under the material when the smooth.

2, the atomizer uses a frequency converter to adjust the speed of the atomizer to achieve the best atomization effect. Lower the atomizer base and increase the distance between the atomizer disk and the top of the atomizer so that the atomized droplets can not return to the top under the spinning of the wind to ensure the normal operation of the system. Using high-speed motor drive, the spindle through the gearbox growth to 15000 ~ 16000R.P.M, making the atomization of the disk speed up to 130m / min, to ensure that the atomization effect. With hydraulic digital automatic detection of safety protection devices, the main shaft with water-cooled oil-cooled device to ensure that the spindle from high temperature deformation. According to the requirements of the finished product particles, the shape of the atomizing disk can be selected as a circular hole, a square hole or a diamond hole.

3, pneumatic percussion hammer, using Japan's new technology with a new head of PTFE products, both to ensure that the shock effect, reducing the percussion of the product noise, but also to achieve a reasonable distribution.

4, designed a tower lighting device and a 1 observation cleaning door, manhole.

5, the main tower of the hot wind turbine using accelerated structure, making hot air into the tower effectively suppress the material, the orderly decline in cyclone. The hot air distributor also combines the characteristics of the technology and requirements, so that both sides of the distributor have air guide mechanism, and can be adjusted to control the angle of hot air into the tower tangential.

Receiving system
The spray drying unit receiving system consists of two cyclone + water film precipitator combination. Two cyclone are used to collect high-efficiency cyclone, the powder rate can reach about 95% points, water film filter recovery rate can reach 100%.
Other auxiliary systems

All are well-known manufacturers supply, reliable performance; part of the pipeline to consider a certain point of view of the design, the use of polished smooth stainless steel tube, to avoid the knot material, blocking material, and partial resistance is too large affect material handling phenomenon.

Control System
By the main control components, programmable touch screen, fuzzy controller and other components.
The system color touch screen animation shows the process, control the setting of parameters, PLC programmable pre-set process, the use of fuzzy technology to automatically track the control variable parameters in order to achieve the best results.

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  Pesticide methane, ethanol centrifugal spray dryer