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Help CenterAnimal Blood Centrifugal Spray Dryer, Plasma Protein Spray Drying Tower
Product Spotlights
2. Wide application
3. High product quality: The powder particle size, moisture content, and fluidity
4. Automatic control
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Overview of Centrifugal Spray Dryer:
The centrifugal spray dryer is the core equipment in modern industry for efficiently converting liquid materials into high-quality powders. Its working principle is that through a high-speed rotating centrifugal atomizer, the liquid raw material is instantly scattered and stretched to form a fine mist net. At the same time, hot air is precisely introduced into the drying tower and comes into efficient co-current or counter-current contact with the mist droplets, causing the moisture to evaporate rapidly within a few seconds, and finally a uniform and dry powder product is obtained.
The essence of this process lies in "instantaneous drying". With extremely high heat and mass transfer efficiency, even heat-sensitive substances (such as proteins, probiotics or natural extracts) can be dehydrated at a relatively low temperature, thus maximizing the retention of their active ingredients and natural properties. By precisely controlling the atomizer speed, inlet air temperature and airflow mode, operators can flexibly control the particle size, moisture, solubility and fluidity of the finished powder to meet the strict requirements of many fields, from food milk powder, pharmaceutical raw materials to high-end ceramic powders and nanomaterials.
Therefore, the centrifugal spray dryer is not only a drying technology, but also a precise powder manufacturing system. It realizes an elegant transformation from "liquid" to "powder" in an efficient, continuous and controllable industrial way, and is an indispensable key link on the modern production line pursuing product quality and process efficiency.
Application of Spray Dryer in Animal Blood Drying Process:
The spray drying of animal blood (mainly pig, cattle and chicken blood) is the core process in blood processing, aiming to convert liquid blood into blood powder that is easy to store, transport and use. The spray drying of animal blood is a mature technology for converting slaughter by-products into high-value resources. Its core lies in precisely controlling the high-temperature instantaneous drying process to kill germs while retaining the nutritional value of proteins as much as possible. With the continuous improvement of the requirements of the feed industry and biotechnology, this process is developing towards a more refined, lower-damage and higher-value-added direction.
The centrifugal spray dryer used in the animal blood drying process can be divided into spray dryers for three products: whole blood, plasma protein and globulin.
Plasma protein spray drying is a technology for processing the plasma part of animal blood into powdery protein feed through the spray drying process. This process involves collecting fresh blood, separating the plasma after anticoagulant treatment, and then conducting spray drying under specific conditions to finally produce a milky white or light brown powder product.
The core principle of spray drying is to atomize the liquid plasma into tiny droplets, which are rapidly dried after coming into contact with the high-temperature airflow to form a powdery finished product. This process can maintain the water solubility, fluidity and solubility of the product, and temperature control during the drying process is crucial to avoid excessive denaturation of proteins.
In applications, blood powder produced after spray drying is commonly used in animal feed, especially for the nutritional supplementation of early-weaned piglets. Its advantages include: increasing piglet feed intake, daily weight gain, and feed conversion rate, as well as reducing the diarrhea rate, etc.
In addition, the design of the process equipment focuses on stability, is suitable for large-scale production, and meets food or pharmaceutical-grade standards.
Flow chart of the centrifugal spray dryer system
Technical advantages of the spray dryer:
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Fast drying speed
The atomized droplets have a small diameter (usually 20 - 150μm) and a large specific surface area. After contacting with hot air, they evaporate instantly (drying is completed within a few seconds), which is suitable for heat-sensitive materials.
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High product quality
The powder particle size, moisture content, and fluidity can be controlled by adjusting parameters (inlet air temperature, atomization speed).
The material temperature is relatively low during the drying process, which can retain nutritional or active ingredients (such as proteins, probiotics).
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Flexible process
It can handle liquids with different viscosities and solid contents (solutions, emulsions, suspensions).
It can adapt to various material characteristics by adjusting the atomizer structure (centrifugal disc, nozzle).
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Continuous automated production
Equipped with a PLC or DCS control system to realize the full-process automation of feeding, drying, powder collection, and tail gas treatment, which is suitable for large-scale continuous production.
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Controllable powder physical properties
By adjusting process parameters, powders with high sphericity, good fluidity, and excellent solubility can be produced to meet the downstream processing requirements (such as tableting, mixing and packaging).
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Energy-saving and environmental protection
It has a relatively high thermal efficiency, and some models can integrate a waste heat recovery system.
Equipped with high-efficiency dust removal (cyclone separator + bag filter) and tail gas treatment devices to reduce dust emissions.
Industries suitable for centrifugal spray drying:
Food industry
Production of milk powder, soybean milk powder, coffee powder, fruit juice powder, egg powder, yeast, and fruit and vegetable powder.
Drying of seasonings (such as soy sauce powder, yeast extract) and food additives (flavors, pigments).
Low-temperature drying of functional foods (probiotics, enzyme preparations) to protect active ingredients.
Pharmaceutical industry
Drying of bulk drugs such as antibiotics, vitamins, and traditional Chinese medicine extracts.
Preparation of spray-dried microcapsules for drug sustained release or taste masking (such as granules, capsule fillers).
Chemical industry and materials
Granulation of dyes, pigments, ceramic powders, catalysts, and polymer particles (such as PVC, PE).
Preparation of precursors for nanomaterials and battery cathode and anode materials (such as lithium battery materials).
Environmental protection and bioengineering
Sludge drying in wastewater treatment and immobilization of microbial agents (such as biopesticides).
Drying of bioactive products such as enzymes and single-cell proteins.
Other industries
Cosmetics (foundation, talcum powder), ceramic glazes, wettable pesticide powders, etc.
Technical parameters of centrifugal spray dryer
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