Stage 1 - this stage involves the production of large quantities of brewed coffee using industrial draught beer.Freshly ground coffee is in contact with hot water from industrial brewing machines until the desired degree of extraction is achieved. 

 

Stage 2 - the coffee liquid that is concentrated by evaporation.This phase produces a thicker, more viscous coffee solution, and then prepares for the next phase.

 

Stage 3 - the concentrated liquid coffee is fed into a spray drying tower, where it becomes a powder.This is achieved by pumping the coffee concentrate through an atomizer, where it is broken into small droplets.Falling water droplets quickly lose water in contact with dry gases.They are suspended in dry air and are usually separated by centrifugation.

Coffee production line (spray dryer)

3. Coffee production line (fragrance recovery)

    - separate a small part before the extraction process and add it before feeding.

    - after the evaporation process to separate the fragrance part, so that the product becomes a good drink.In any case, it must be noted that there are two options available to the customer.

    - improve the operation of PETRONCINI system in recovering the aroma and taste of the whole extraction before evaporation system concentration.Advantages: the acidity of natural produce has been removed during evaporation during hydrolysis, in the third step of extraction, and the recombination of aromas and flavors totals.Previous separations, such as using our system, ensure the best quality and a very good taste.If you choose this recovery system, you don't have to separate the flavor from the hydrolyzed part of the extraction process, so the recovery system is redundant.

    - an additional system to obtain the most typical low temperature solids and high quality fragrances is contained in this extraction system (ALILT system)

4. Coffee production line (evaporation)

    - to reduce the cost of spray drying, we concentrate 12-15% of the solid extraction concentration up to 50%.Of course, if you want a low concentration, it's ok to design a 35 percent solid chamber.Usually not, you lose the scent during evaporation, but with our scent recovery system, you eliminate that 100% of the time.
 

5. Coffee production line (spray drying)

    - the inlet temperature of the spray drying tower is controlled between 250-270 degrees, and the outlet temperature is controlled between 110-130 degrees. Adjust the nozzle and spray pressure to make the coffee powder into thick wall hollow spherical particles, the specific gravity is controlled at 220-250g/L, and the moisture content is about 3%.In spray drying coffee liquid concentration should be paid more attention to, because the higher solution concentration, the higher the viscosity, surface tension, the greater the conducive to the formation of thick wall hollow particles, at the same time can reduce the shipment - line parameters and temperature and pressure regulating range, but it is not concentration is higher, the better, the corresponding atomize high concentration degree is low, cause atomization bad, so coffee (mixed) liquid concentration should be controlled between 30-40% is preferred.

    - spray drying or atomization is a long-term research and design after bin da drying, which is effective and economical to obtain instant coffee, in a word, to ensure the product's high quality and good taste characteristics.In this process, a high structure dryer with a medium pressure nozzle and a dry air cocurrent is used.Heating compressed air depends on a system fueled directly by gas or on a system fueled by steam or liquid.The drying temperature is very important, in order to keep the fragrance the same, the temperature must be lower.Dry products composed of instant powder, hollow spheres made into approximately 100÷300 m. Particles.A CO2 injection system is needed to reduce the volume density.

1. The drying speed is fast, and the surface area of material liquid increases greatly after atomization.In a hot stream, 95 to 98 percent of the water evaporates instantly, taking only a few seconds to dry.

2. The product has good uniformity, liquidity and solubility, high purity and good quality.

3. The production process is simple and easy to control. It is very convenient to control and manage the water content of 40-60% (up to 90% of the water content of special materials).

 

- All borosilicate glass for easy visual monitoring of process status.

- Spray chamber, cyclone separator, receiving tank are all made of Borosilicate glass which can resist strong acid/alkali, high temperature. It can work in a no-pollution and stable environment.                                                            

- Easy to clean and very simple to assemble and break down.                       

- The air compressor is oil-free and does not contaminate the compressed air. The sound is below 50db.

- inlet/outlet temperature is accurate controlled by PID 

- Use the touch screen to display operation, control temperature, air flow, air pressure, pump speed and deblocking frequency.

- Feeding with RS2559605 rotary pump with adjustable capacity.

- The automatic de-blocking device prevents the nozzle from becoming blocked and variably controlled.

Spray-dried coffee is now made!