Basic Info.
Structure
Rotary Type Drier
Operational Method
Continuous
Operation Pressure
Atmospheric Dryer
Heating Mode
Transmission
Product Description
Whey and permeate from ultra filtration of whey and milk are considered low-price by-products if processed into a powder or expensive if disposed off into sewage plants. With the increasing cheese production there will be more and more whey and/or permeate available. This is why XIANDAO has developed the TIXOTHERM process, which converts this by-product into a first-class non-caking powder product using minimal energy. Reduced building volume means lower total investment.
How does the TIXOTHERM process work?
Pre-crystallized whey and permeate concentrates are very thixotropic, i. e. If the concentrate is not agitated continuously in the crystallization tank in the traditional process, it will solidify and the higher total solids in the concentrate, the more solid becomes the concentrate. This phenomenon is used advantageously in the TIXOTHERM process.
Whey and permeate from ultra filtration of whey and milk are considered low-price by-products if processed into a powder or expensive if disposed off into sewage plants. With the increasing cheese production there will be more and more whey and/or permeate available. This is why XIANDAO has developed the TIXOTHERM process, which converts this by-product into a first-class non-caking powder product using minimal energy. Reduced building volume means lower total investment.
How does the TIXOTHERM process work?
Pre-crystallized whey and permeate concentrates are very thixotropic, i. e. If the concentrate is not agitated continuously in the crystallization tank in the traditional process, it will solidify and the higher total solids in the concentrate, the more solid becomes the concentrate. This phenomenon is used advantageously in the TIXOTHERM process.
All flowsheets are available for download in the Animation Download area.
The TIXOTHERM process is a four-step process, where whey or permeate is evaporated in a falling film evaporator to 60 % TS. From the evaporator, the concentrate is pumped to a vertical agitated film high concentrator. Here, the solids are increased up to 85% TS. However, the high shear rate in the agitated film keeps the viscosity relatively low. The combination of high solids and low temperature as a result of the evaporation initiates the lactose crystallization and many nuclei are formed.
In the subsequent process (the mixing crystallizer), a phase-conversion of the product takes place enhanced by the addition of fines particles/recycled cold product from the subsequent fluid bed drying/cooling. This encourages a rich lactose crystallization.
At the discharge of the mixing crystallizer, the product is now a semi-solid mass with a friable texture ideal for the following fluid bed drying and cooling. In this last step of the process, the remaining moisture is evaporated in an agitated back-mix fluid bed followed by final drying and cooling in a plug flow VIBRO-FLUIDIZER. The drying air for the bag mix and plug flow fluid bed is exhausted through a SANICIP bag filter, from where the collected fines particles are returned back to the mixing crystallizer.
The result of the TIXOTHERM process
The final powder almost has 100 % of the lactose crystallized, i. e. The total moisture content is 5 % or more. The powder is non-hygroscopic and non-caking. Energy consumption is reduced by more than 30 % and building requirements are reduced by more than 50 %. No crystallization tanks are needed and no spray drying plant is involved to produce whey or permeate powder.
The capacity of a given TIXOTHERM plant is a function of the content of protein, galactose, and lactic acid in the product. That is why a TIXOTHERM plant for whey/permeate from mozzarella cheese has lower capacity than for instance whey/permeate from Swiss cheese.
Address:
Jiaoxi, Changzhou, Jiangsu, China
Business Type:
Manufacturer/Factory, Trading Company, Group Corporation
Business Range:
Agriculture & Food, Chemicals, Health & Medicine, Industrial Equipment & Components, Light Industry & Daily Use, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy
Management System Certification:
ISO 9000, ISO 9001
Company Introduction:
Changzhou Xiandao Drying Equipment Inc. is a Joint-stock enterprise, which is specially engaged in the research, development, design and manufacture of spray dryers & Fluid-bed granulator. Its main research subject and orientation are "spray drying and the fluid-bed granulating " and it is one of enterprises which has obtained the most scientific achievements in the fields of powder technology.
On the basis of inheriting & developing former Wujin Fareast Drying Equipment Factory ′service aim, which was founded in 1969, xiandao win many customers′entrust and support with strong technical strength, advanced drying process, high quality, reliable after-service.
At present, many kinds of equipment, which are developed & produced by us, have been applied in important industrial field such as food, chemicals, pharmaceuticals, ceramics, metallurgy, feedstuff etc.
As a leader in the area of spray drying and supplier of Sinopec Group, we always insist "quality as the fundamental innovation and development" purposes, leading the country continue to advance the spray drying industry. Our company has successfully obtained ISO9001 certification in 2002.