Working principle: The liquid is discharged from the pressure of the high-pressure pump nebulizer under the pressure of high-speed rotary movement, the turbulence of the surrounding air and the radial relative velocity, which is the rupture of the lead film. The surface tension and viscosity of the liquid silk after breakage, and finally the particulate product formed by the evaporation of the drip fog group. This effectively dries the particles quickly.
Features of the spray dryer:
1. Adapt to solution and suspension
2. The production is simplified, the disposable liquid is dried 20-500um powder, eliminating the need for concentration and filtration, and crushing.
3. The drying time is short, and the general home textile series is suitable for high heat-sensitive materials
4. Stable work, convenient adjustment and control, automatic operation
1. 2.3 Equipment features
1.The spray dryer is operated by a large color touch screen and comes with a memory function
2.Fully automatic control: one-button start-up, after setting the spray process parameters, the temperature reaches the predetermined temperature, the peristaltic pump starts, and the touch screen displays.
Running animations, running processes are clearly displayed
3.Manual control: If you need to adjust the process parameters during the experiment, you can adjust them manually, and the color touch screen of the whole experimental process will be displayed dynamically.
animation). 4.Shutdown protection function: the machine stops running except for the fan, and the heating part of the equipment will not be burned out due to misoperation (turning off the fan).
5.The spray, drying and collection system is made of 304 stainless steel, which allows the spray drying process to be carried out in a pollution-free and stable environment
It provides convenience for researchers to control the experimental process and experimental results, and can find and solve problems in time. All stainless steel elements are easy to disassemble and easy to use
Cleaning. 6.Built-in oil-free air compressor, the particle diameter of powder spraying is normally distributed, the fluidity is very good, and the noise is very low
7.Centrifugal atomization structure, the whole machine is made of stainless steel material, compact design, no auxiliary equipment, easy to use, as good as new.
8.In order to meet the user's requirements for adjusting various parameters in the experimental range, real-time control PID constant temperature control was adopted in the design of drying temperature control
The system technology makes the temperature control accuracy of the whole temperature zone and the accuracy of heating temperature control 1.
9.In order to maintain the purity of the sample, an air inlet filter is equipped.
10.The feed volume can be adjusted by means of a feed peristaltic pump.
11.After drying, the particle size of the finished dry powder is more uniform.
12.The small spray dryer is equipped with a nozzle cleaner (through needle) for viscous materials, which will automatically remove when the nozzle is blocked.
The spray dryer is mainly suitable for the production of trace granular powder in universities, research institutes and food and chemical enterprise laboratories
Liquids such as emulsions and suspensions have broad-spectrum applicability, and are suitable for the drying of heat-sensitive substances such as biological products, biological drugs, enzyme preparations, etc
Because the ejected material is only subjected to high temperature when it is sprayed into mist-sized particles, it is only instantaneously heated to maintain these active materials.
After drying, the material still maintains its active ingredients without being destroyed.
Material-liquid atomization, fog group contact medium, fog droplet evaporation and drying, gas-solid separation.
Brief Description 1The atomization chamber, cyclone separator, material collection bottle, waste collection bottle are made of stainless steel.
2.The chassis is SUS304.
3.Bag device (optional): increase the ** rate.
Note: Dimensions are reference dimensions and can be adjusted according to the site.
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3.2 Component Introduction
The equipment is mainly composed of electronic control system, feeding system, atomization system, drying system, product system and other parts.
3.2.1 Electronic control system
Components: Controller, touch screen, module, inverter, solid state relay, temperature sensor, etc.
Description: The electronic control system is the brain of the whole machine, this machine is equipped with a self-developed electronic control system, which makes the control more accurate and the product stable.
Good. 3.2.2 Feeding system
Composition: including peristaltic pump and feeding pipeline.
Description: Put the configured slurry into the batching tank, stir evenly, and under the drive of the peristaltic pump, the slurry reaches centrifugal atomization through the pipeline valve.
Utensil. 3.2.3 Atomization system
Composition: Contains atomizer, volute structure, outlet air temperature sensor, pressure regulator, pressure gauge.
Description: The heated air enters the volute structure and exits through the conical dispersion of the atomizer and flows downward in a spiral. and material pass.
After the centrifugal atomization disc is fully atomized, it is fully in contact with the hot air in the drying tower to achieve instant drying.
3.2.4 Drying system
Composition: including the drying tower body, the pressure gauge in the tower, the air inlet pipeline, the air outlet pipeline and other components.
Description: A filtration device is set inside the air inlet pipeline, and the atomized slurry is in full contact with the hot air in the drying tower, and the solvent is evaporated
The bulk material is dried into a receiving barrel where the powder falls to the bottom, and the gas is discharged from the air outlet pipe.
3.2.5 Product ** System
Composition: including cyclone separator, cyclone receiving tank, bag dust collector, bag pulse rapper;
Description: Gas-solid separation, air is discharged, and dried materials are collected and separated. Adopt the grading receiving method, and the bottom of the tower is receiving +
Cyclone collection + bag collection, tower bottom and cyclone collect large particles, cloth bag collects fine particles.
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5L Centrifugal Spray Mist Dryer Detailed configuration serial number
Name, Description, Quantity
1. Host structure
1-1 Drying tower
Brand: Hangzhou Anyan
1 set Material: 304 stainless steel, mirror finish
Diameter: 800mm
Height: 1500mm
Cleaning window: 340*340mm
Observation window: 80mm (clear glass).
Vibratory hammers: 2pcs 30W
Vortex separator
Brand: Hangzhou Anyan
1 set Material: 304 stainless steel thickness 10mm
Structure: upper and lower split type, can be disassembled and cleaned at any time
Collection bottle : 304 stainless steel mirror treatment 5L
The drying tower is separated from the vortex and the stainless steel has a density of 793g cm, high wear coefficient, material will not
Easy to hang on the wall, acid and alkali resistant, easy to rinse
1-3 Main Bracket
Brand: Hangzhou Anyan
1 set Material: 304 stainless steel
Casters: 4 (the whole machine can be moved).
Capacity: 1200kg
1-4 Bag Dust Removal System
Material: 304 stainless steel with mirror finish
1 set size: 260*1300mm
Aperture: 1 m
Filter material: polyester fiber
Cartridge Rating: PF
Inner and outer mesh material: galvanized mesh
Installation: Silo top metal interface
Two: control system.
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3.5.3 Consumables list
2-1 Electronic control part
Touch screen : DGUS 7 inch large LCD touch screen
1 set of relay : Schneider SSR-25A
Air switch : Schneider
Power box : MEAN WELL Taiwan
Temperature Sensor : Shanghai Hongwei PT100
Communication module: Hangzhou Anyan
Control motherboard: Hangzhou Anyan
2-2 Atomization system
Centrifugal atomizer brand: Hangzhou Anyan
1 set power supply: 220V (electric).
Atomization speed: 0-32000 rpm
Control mode: inverter (Eurofins).
Material: 304 stainless steel
Cooling method: Water cooler (-10 to 50 degrees).
2-3 Feeding system
Feed pump brand :Lin Xin TH25
1 set Material: engineering plastic
Feed pipe : Latex tube 2m
Speed: 5L h (adjustable).
Motor: brushless geared motor Conley brand
2-4 Fan system
Air flow: 300m min
1 set of fans: Guangdong full wind
Control: Inverter fan
Power: 2200w
Fan line: 304 stainless steel
2-5 Main Heaters
Brand: Hangzhou Anyan
1 set Model: P550
Anti-dry burning: Yes
Power supply: 38 0V 50Hz
Power: 10 kw
Material: stainless steel, jacketed type
Design temperature: RT 250
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4.4 Production process flow diagram
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Aluminum nitride-ethanol experimental data
Polyimide-NMP experimental data
5. Effects and cases
5.1 number of experiments
Customer Name: A customer in Xiamen Industry Attributes: Chemical Industry Material Name: Aluminum nitride solution
Solvent Name: Water Solid Content: 40% Heating Medium: Air
Inlet air temperature: 250 degrees Solvent**: No** Required particle size: 50 microns or more than 80%.
Customer Name: Beijing Institute of Aeronautics and Astronautics Industry Attributes: Material Industry Material Name: Polyimide Solution
Solvent Name: Water Solid Content: 18% Heating Medium: Air
Inlet Air Temperature: 220 °C Solvent**: No **Particle size: 20 microns, +5 microns.
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Dried finished product display