Product Specification

Rotary Dryer for Ore, Sand, Coal, Slurry Fromtop Chinese Original Manufacturer, Rotary Drum Dryer Machine

About Rotary Dryer

The rotary dryer is a type of industrial dryer employed to reduce or minimize the liquid moisture content of the material it is handling by bringing it into contact with a heated gas.

A rotary dryer is suitable to dry metallic and nonmetallic mineral, clay in cement industrial and coal slime in coal mine, etc. Rotary dryers can be widely used to dry various materials,
most commonly seen in the mineral industry for drying sands, limestone, stones and soil, ores, fertilizers, wood chips, coal, iron sulphate, filter cakes, sewage sludge, other sludge, etc.

The technical solutions are as varied as the materials. Depending on the raw material, application and water content involved, we design and manufacture the right rotary dryer system for customers.
In addition to a precisely controlled drying process, another important factor for drying biomass is a facility's cost-effectiveness - making use of free waste heat.

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.