SS304 316 Rotary Drum Flaker Drying Equipment for Food Chemical Industry

Performance characteristics

1) High thermal efficiency: Most of the heat supplied in the cylinder is used for moisture vaporization, and the thermal efficiency can be as high as 70~80%.

2) Large drying rate: The heat and mass transfer process of the wet material film on the cylinder wall is consistent from the inside to the outside, and the temperature gradient is large, so that the surface of the material film maintains a high evaporation intensity, generally up to 30kg/㎡ h.

3) The drying quality of the product is stable: the heating method of the drum is easy to control, the temperature in the cylinder and the heat transfer rate of the partition wall can be kept relatively stable, so that the material film can be dried in a stable heat transfer state, and the quality of the product can be guaranteed.

4) Wide application range: Liquid phase materials dried by drums have fluidity, adhesion and stability to heat. The form of the material can be solution, suspension, emulsion, sol, etc.

5) The production capacity of a single machine is limited by the size of the cylinder: the drying area of a general drum dryer should not be too large. The drying area of a single cylinder seldom exceeds 12 square meters, and its processing capacity is generally 50-1000kg/h.

Working principle of roller scraper dryer

Drying process: Let the liquid or muddy material form a film on the surface of the drum heated by steam or other heat carriers. The drum is dried in one revolution. The product is scraped off with a scraper, and the exposed surface of the drum comes into contact with the raw material again. And form a film to dry.
The drum scraper dryer uses a certain method to spread the liquid or pasty material on the drum (hollow metal cylinder) with a 0.1-1.5mm film. The drum can be heated with steam, hot water or thermal oil. When the drum rotates once, the material can be dried and scraped off the surface of the cylinder by a special scraper. The drum scraper dryer generally rotates at a speed of 4 to 6 rpm.
The drying of the paste-like material is to adjust the thickness of the material and to compact the material layer. On the side close to the feeding device, a material compression shaft is installed to make the material evenly spread on the drum. In order to make the material easier to fall off when the scraper discharges the material, before the scraping, the cold air pipe can also be used to blow a certain amount of cold air to cool the material.

Technical parameters

Features of drum scraper dryer
- Lower consumption and operation cost
- Capable to dry different kinds of product
- Stable operation
- Uniform dried product
- Both dryer and calciner, operation Temp. Up to 1000°C
- Heat source can be steam, electricity, coal, natural gas etc.

Sale service:

In order to fulfill the contract smoothly, establish a good cooperative relationship, here's are several points what we must do.
(1). ensure product with high quality and pre-commissioning before delivery
(2). delivery on time
(3). provide full set of documents as customer’s requirements

After-sale service:
Provide considerate services to minimize customers’ worries.
(1). Assist customers to prepare for the first construction scheme.
(2). Install and debuging the drying equipment.
(3). Train the first-line operators.
(4). Exame the drying equipment.
(5). Take initiative to eliminate the troubles rapidly.
(6). Provide technical support.
(7). Establish long-term and friendly relationship with all my customers.

Service commitment:
We provide customers 12-months warranty to make sure the machine work well, and always keep certain inventory level of spare parts, which means the replacements can be sent to you timely. At the same time, we send every customer a preferential and reasonable quotation.