China high efficiency lignite rotary dryer/coal drying machine manufacturer

Lignite coal dryer application

1, In coal industry, dry the flotation clean coal, raw coal, coal slime, mixing clean coal, etc.

2, In building industry, dry sand, clay, limestone, blast furnace slag, quartz stone, bentonite, etc.

3, In mineral processing industries, dry various metal concentrate, tailings, waste residue, etc.

4, In chemical industry, can dry non-thermal sensitive material.

Lignite coal dryer performance characteristics

1.Lignite coal dryer has great handling ability, fuel consumption less, low drying cost.

2.High temperature resistant, this dryer can use high temperature and hot air to dry materials rapidly.

3.Lignite coal dryer expanded ability is strong, design considered production surplus, even if yield increased slightly, also need not changing equipment.

4.Lignite coal dry adopts “self-aligning type” tug structure,tug match up well with rolling ring, and greatly reduce wear and power consumption.

5.Special designed catch wheel structure, greatly reduces tilt of the equipment which work provides the horizontal thrust.

6.Environmental protection.

7.Dry and moisture control, minimum up to 5% or less, meet material widely.

Lignite coal dryer system working site 300 ton per day:

Lignite coal dryer operating principle

1. A rolling cylinder which slightly inclines is the main part of Lignite coal dryer. The wet materials are fed from the higher end of the cylinder when the heating media are being sent through the lower end.

2. Under influence of the gravity,wet materials flow downwards to the lower end and contact the heating media directly or indirectly.

3. There is a stirring plate on the inner wall of the cylinder to

stir materials continuously and make them have a full contact with air stream.

Lignite coal dryer structure

1.Lignite coal dryer is formed by rotary body, lifting blade, driving device, supporting device and sealing ring.

2.Lignite Coal dryer is mainly composed of shell, back and forth supporting wheel, feeding and discharging unit and gear cap.

3. The accessories which are not in the scope of this machine include firebox, feeding and discharging equipment, dust catcher, etc.

Lignite coal dryer working site 1000 ton per day 

Lignite coal dryer market outlook

1.With implementation of the strategy of sustainable development, coal and other mineral resources,rational development and utilization has become an important issue,original low value the full development and utilization of  is urgent.

2.Use of valuable  resources, so that turning waste into wealth, not only can produce considerable economic benefits.

3.This drying equipment can be dry Lignite coal in ensuring quality of the same premise, reducing the sulfur content of  to improve the calorific value of .

4.Improve combustion efficiency, making more full use of coal resources .

Process flow of lignite coal dryer

As raw material is sticky, this drying equipment is divided into several section for higher efficiency.

1.Transmission section. Wet Lignite coal enters this section, then gets full contact with high temperature air, moisture inside gets vapourized. With lifting boards elevate and scatter materials repeatedly, wet Lignite coal conveyed to next section.

2.Cleaning section. When materials fall down, they are easy to stick on the inner wall of the cylinder. During this process, cleaning device breaks the clumps. This spreads the surface area of heat exchange and improves heat efficiency.

3.Lifting boards section. Wet Lignite coal is loose and of low moisture content that meet the requirement.

4.Discharging section. No lifting boards in this area. Materials roll to the outlet. The whole drying process is completed.

 The simple drawing of lignite coal dryer system:

Working principle of lignite coal dryer

• The wet materials, first scattered via special feeding scattering device, then wet materials is sent to the feeding machine by band-type feeder, and then wet materials is conveyed/delivered into raw materials drum dryer by feeding machine, materials in stirring function of shoveling plates which are uniform arrangement  in the dryer machine, homodisperse and fully contact with hot air to achieve the purpose of heat transfer and mass transfer. The slurry after drying in the end of roller discharge finished products from the star-shape discharge, the belt discharging machine output the dried products, and that complete drying process.

The technology Parameters of Lignite Coal Dryer:

  Export standard container 20GP OR 40GP,40HQ,FR container,In bulk,the spare parts in wooden case.

Some case of our rotary dryer shipping to customer

 Henan Donging Heavy Industry Equipment CO.,LTD  is a new energy equipment, high humidity material drying equipment, environmental protection and research-based professional development of enterprise groups, is the only domestic industry drying equipment research and development, design, production and sales of high-tech enterprise group, and the first certified by ISO quality management system. Dongding Heavy Industry Equipment is a project co-drying equipment, Tsinghua University, Henan University research base, China Petroleum and Chemical Industry Federation drying technology professional group member units, Henan Province, the top ten most of the growth of science and technology enterprises. 

As a professional manufacture,we are supply machinery as below:

1.) Rotary dryer,Coal slime, Lignite coal dryer,Brewer grain dryer and other dryer

2.) Wood pellet machine, Biomass pellet machine, Animal feed pellet machine,Small pellet machine 

3.)Coal gasifier,Biomass gasifier,MSW gasifier,Sawdust burner,wood pellet burner,biomass pellet burner, wood/biomass prowder burner and others

4.)wood chipper,wood hammer mill,wood crusher and other machine.