Spray Drying: Its Uses, Process And Important Factors To Be Aware Of!!

Spray drying can be defined as the transformation of feed from a fluid state into a dried state by spraying the feed or the substance into a hot medium. The feed used in the process can be a solution, paste or suspension which can easily be transformed into agglomerates, powders, and granules. The form that the final or finished product takes is dependent on various factors including the chemical and physical properties of the substance as well as the operation and design of the spray dryer.

The basic idea of the overall spray drying process is the production of highly dispersed dried powders from a fluid or liquid feed by evaporating the solvent. The finished product is achieved by mixing a heated gas with a sprayed fluid of high mass to surface ratio droplets, within a drying chamber or vessel. This causes the liquid solvent to evaporate quickly and uniformly through direct contact.

Uses of the spray drying process

The process of spray drying can be used in a wide variety of applications where the production of a free-flowing dried form of powder is required. But, this method of drying has become the most preferred in the following areas:

-    Tooth and bone amalgams

-    Pharmaceuticals

-    Egg and milk products

-    Textiles

-    Beverages

-    Resins, plastics, and polymers

-    Detergents and soaps

-    Plant extracts, flavors and colorings and many more.

Spray drying is a very flexible process that can easily meet the necessary product requirements of the above-given area's products, offering an inexpensive solution to many drying problems. It can solve drying problems concerning thermally sensitive materials including food ingredients and flavors. The products which are spray dried retain their nutritional value of the ingredients, while providing with a material that can further be used directly in a final composition, and even can be readily mixed or reconstituted.

Phases or methods of the spray drying process

The process of spray drying consists of the following steps:

1.    Feed preparation

The feed used in the process can be a homogenous and free from impurities suspension, paste or solution.

2.    Atomization

Atomization is the most important and critical step in the entire process of spray drying. It is the method of transforming the feed into small liquid droplets. The degree of atomization controls the drying level of the feed as well as of the dryer size.

3.    Drying

This phase of the spray drying process ensures that moisture evaporates quickly from the surface of the feed. This is then followed by a failing rate period where the drying level is controlled by diffusion of the liquid to the surface of the particle.

4.    Removal of powder from moist gas

The separation of powder from the gas needs to be carried out in an economical medium as well as in a pollutant-free manner. The particles are generally removed with bag filters, scrubbers, precipitators or cyclones.

5.    Packaging and cooling

The last step in the spray drying process is the cooling and packaging of the final product.

All these steps are very important to undertake if you want to get perfect spray drying results. However, to ensure that you get powder particles that are free from any impurities, you need to have proper information on drying kinetics as well as a good collection of solid ingredients. Keeping all these will surely provide you with the desired results.

Fuel Injector Testing To Make The Engine Run Smooth

Have you experienced any difficulty while starting your car? Is it your problem that you hear the thumping or pinging commotions? In the event that you have been encountering any of these issues, it's very conceivable that your vehicle could profit by a fuel injection system. A fuel injection system is the new invention to tackle the starting problem and it has replaced older style systems that used carburetors. It is not only the starting but the overall engine performance which gets a great boost from the fuel injector testing USA.

The right amounts of fuel are required to inject into the engine -

The pressurized fuel is required for the engine and this work is done by the Fuel injectors. These tiny valves are monitored by electronic sensors in order to supply the engine with right amounts of pressurized fuel. Fuel injection systems were designed to proficiently provide fuel and reduce air pollution created by toxic emissions. An oxygen sensor can detect when the engine is receiving excessively air and this sends a signal to the fuel injectors to supply spurts of fuel.

Occasionally, it is seen that the fuel injectors can become clogged up with unused additives, dirt, and carbon deposits. At the point when this happens, the spray pattern of the fuel being sent to the engine is disrupted and that's when you may start to notice issues. This creates the hindrance in sanding the right amount of oil to the engine. To the entire problem, Carbon deposits in the system can actually act like sponges by soaking up fuel before it can be put to good use. This is the reason behind the poor gas mileage and you end up wasting money at the gas pump.

Dirt, mud can clog the system and can create the problems -

It's not surprising that a small amount of debris in the system can cause noticeable problems because the Fuel injectors are very tiny thing and perform the meticulous job of properly supplying the engine with correct amounts of fuel. It is the fuel injector testing, which is the solution of the problem and very helpful for a dirty, clogged up system. The chemical cleaning solution is passed through the fuel injectors in order to break up dirt, sludge, varnish, and carbon buildup.  The solution will clear the way and the fuel may flow freely once again and be put to good use to run the engine with great speed.

Testing of fuel injector for the a better supply of the fuel to the engine -

The cleaning of the fuel injector is vital, but it is also a good idea to stay away from cheap, discount gas since it does not contain the same cleaning agents and detergents., there is more probability that your fuel injection system will become dirty and clogged much quicker If you continue to use cheap, discount gas for an extended period of time.