Shrimp Vacuum Drying Equipemnt

How to select the best vacuum technology for your process

A vacuum expert should generally be consulted when selecting the vacuum technology and its dimensioning. The expert will always be able to offer the most economical and technically sensible solution.

Busch Vacuum Solutions has been manufacturing vacuum solutions for freeze drying foodstuffs and pharmaceutical products for decades. In addition to vacuum technology, Busch also offers all monitoring, measuring and detection devices for the complete process.

Specification:

1.Material: SUS304

2.Ultimate vacuum degree: 5Pa

3.Processing capacity: Min. 10kg, Max. 300kg

4.HS code: 841869

304 Staninless Steel Vacuum Freeze Dryer

VACUUM DRYING

Vacuum drying is the mass transfer operation in which the moisture present in a substance, usually a wet solid, is removed by means of creating a vacuum.

HOW DOES VACUUM DRYING WORK?

Vacuum drying is used in many industrial sectors to dry substances fast, gently and energy-efficiently. The liquid contained in the processed materials is evaporated by pressure reduction and extracted as vapor.

This technique is therefore particularly suited for drying of sensitive products that would be destroyed or degraded if being dried by means of heat. For example, chemicals, pharmaceuticals or foodstuffs.

Moreover, vacuum drying is the procedure of choice for drying of products with a large surface area. Such as plastic granules or other hygroscopic materials and industrial components.

FREEZE DRYING

Freeze drying. Also known as lyophilization. A technique for the gentle drying of products. Based on the physical process of sublimation.

HOW DOES FREEZE DRYING WORK?

Freeze drying under vacuum is used to dry sensitive products without damaging them. By making use of the phenomenon called sublimation. Which means that water passes directly from the solid to the gaseous state while under vacuum.

The freeze drying process starts with freezing the product to be dried at atmospheric pressure. Usually with the help of cryogenic liquefied gases. It is then placed under vacuum. The frozen moisture in the product sublimates and can easily be extracted in the form of vapor.

In this way, water can be partly or completely removed. For example, from foodstuffs or sensitive pharmaceutical substances. With no need of heating up the products. As a result, important ingredients and aromas are preserved, and product properties remain unchanged. Therefore, freeze-dried substances can easily be rehydrated later on.

Whatever your drying process. We help you to choose the vacuum solution perfectly matching your requirements.

The Role of Vacuum Technology in Freeze Drying

Maulburg, Germany | December 15, 2020

There are several ways to extend the shelf life of food. One of the oldest methods belong of smoking and salting is drying – which was used long before freezing, boiling or vacuum packaging. Freeze drying is a modern extention of traditional drying methods to protect food from spoilage for longer. 

Freeze drying is a modern extention of traditional drying methods to protect food from spoilage for longer.

This process is only made possible by modern vacuum technology because freeze drying food takes place under vacuum.

strawberry-vacuum-freezeing-dryer

Agitated Vacuum Dryer Manufacturer 

The B&P Littleford Polyphase Reactor is a single apparatus designed to handle mixing materials of varying composition that may pass through phases of liquid to doughy, granular, or powder form as they dry. They also have the combined operational features of pressure and high vacuum, with effective heat transfer (heating or cooling). Units would be built to ASME Code Standards as well as differing standards across the globe.

This Reactor operates according to the proven "fluidized bed" mixing principle whereby the materials being reacted are maintained in a mechanically fluidized suspended state, thus permitting the reacting mediums, gas-solid or liquid-solid, to achieve intimate contact with each other and the heat transfer surfaces.

Advantages Of Agitated Vacuum Dryers

The following results occur with an industrial vacuum dryer, specifically an agitated vacuum dryer:

· Controlled reaction through effective heat transfer.

· Improved reactions rate.

· Increased efficiencies of reaction.

· Ability to complete an entire process in a single unit due to the ability to remove a volatile solvent.

· Reduced levels of solvent or diluent can be used due to the mixing action and the ability to handle phase changes.

These are distinct advantages of an agitated vacuum dryer over an autoclave or slow moving ribbon vessel whereby the contact between the heating medium and the material is more by diffusion and is therefore slow, uncontrolled, and takes place at different times throughout the material. The basic design of the B&P Littleford Polyphase Reactor is a horizontal cylinder, which is top loaded and bottom discharged. There are several mixing tool styles available that radiate from a horizontal shaft which is supported by outboard bearings.

The basic mixing action may be supplemented by high speed choppers that are positioned between adjacent plows for high shear applications. The shaft seals are appropriate for the mixing process and include double-faced, balanced, mechanical seals as well as packing or lip seals. Request a quote for more information or to run your material in our Saginaw, MI Tech Center.

Mushroom Vacuum Fast Dryer

Freeze Dryers:

Freeze Drying is used to dehydrate and preserve various food products, without losing the products original shape, texture, color, nutrients, and taste. This is achieved by placing frozen foods under vacuum, while applying heat to dehydrate them. This ensures that the moisture contained in the product goes from its solid state right to its vapor state. The vapor is then locked onto the condensing coils preventing it from re-entering the product. The end result is a product that can be stored at room temperature for an extended period of time without deteriorating.

Benefits of Freeze Dried Products:

· Retains products flavor, nutrients, aroma, colour and shape

· Eliminates the need for cold storage

· Reduces microbiological safety concerns

· Maintains a high product quality

· High reduction in weight without reduction in volume

· Returns to original state when moisture is re-introduced

Features of Freeze Dryers:

· Stainless Steel

· Removable trays

· PLC Control

· In cycle monitoring and recording

· Recipe functions

· Heat Recovery defrost

Vacuum Dryer For Fruits

Vacuum Dryer

Vacuum dryer is the equipment with the help of which vacuum drying is carried out. Vacuum dryers are sometimes made up of cast iron, but most are made of stainless steel, so that they can bear the high vacuum pressure without any kind of deformation. The oven is divided into hollow trays which increases the surface area for heat conduction. The oven door is locked air tight and is connected to vacuum pump to reduce the pressure.

The materials to be dried are kept on the trays inside the vacuum dryer and pressure is reduced by means of a vacuum pump. The dryer door is tightly shut and steam is passed through the space between trays and jacket so that the heat transfer occurs by conduction. Water vapors from the feed is sent into the condenser and after the drying vacuum pump is disconnected and the dried product is collected from the trays.

Vacuum drying

Vacuum drying is the mass transfer operation in which the moisture present in a substance, usually a wet solid, is removed by means of creating a vacuum.

In chemical processing industries like food processing, pharmacology, agriculture, and textiles, drying is an essential unit operation to remove moisture.

1.Vacuum drying is generally used for the drying of substances that are hygroscopic and heat-sensitive, and is based on the principle of creating a vacuum to decrease the chamber pressure below the vapor pressure of the water, causing it to boil. With the help of vacuum pumps, the pressure is reduced around the substance to be dried. This decreases the boiling point of water inside that product and thereby increases the rate of evaporation significantly. The result is a significantly increased drying rate of the product.

2. The vacuum drying process is a batch operation performed at reduced pressures and lower relative humidity compared to ambient pressure, enabling faster drying.