Blast furnace slag drying machine

Rotary drum dryer for drying mix mortar and cement slag

Furnace slag drying machine , also known as lignite coal rotary dryer, is a drying machine mainly used for drying lignite coal. 

Furnace slag drying machine  adopts the new technology of first crushing and scattering the lignite coal and drying it with heating power, making the drying disposal of the materials realize continuity, industrialization and automation. The water content of the moist lignite coal processed by brown coal dryer can be reduced from 25%-30% to below 13%, and the moist lignite coal can be used as bunker coal, thus improving the coal washing and dressing technology and having excellent economic, social and environmental benefits.

Working principle of Furnace slag drying machine :

On the condition of maintaining the quality of the lignite coal, rotary drum dryer adopts low-temperature four-level drying technology to evaporate the water containing in the lignite coal to below 13%. The first-level drying area removes most water at the high temperature sate with 400℃ of high temperature, making sure that the chemical component of the lignite coal remains the same and that the lignite coal is not easy to burn; the second-level drying area has the indoor temperature of 300℃, it will remove the water through medium-temperature strong induced air to make sure that the lignite coal do not have coking; the third-level drying area has the indoor temperature of 120℃-210℃, and the crushing device inside the roller will repeatedly hit and scatter the materials and dry them with fair current; the fourth-level drying area is high exhaust area, and the indoor temperature is 60℃-80℃, and the water containing in the materials will be removed by the low-temperature hot airflow with negative pressure of the induced air system.

Coal inlet and outlet:

Insite structurer of Furnace slag drying machine :

Dust collector:

Features of Furnace slag drying machine :

(1) Furnace slag drying machine has strong anti-overload capacity, big processing capacity, low fuel consumption and low drying cost.

(2) It adopts concurrent drying method, so that the smoke and the moist materials go into the dryer machine from the same side. Relying on the high-temperature smoke, the materials will get high evaporation intensity. The outlet temperature of the drying machine is low and the heat efficiency is high.

(3) According to the property of different materials, the running parameters of the equipment can be changed, so that the materials inside the dryer cylinder can form stable and whole section of material curtain to improve the mass and heat exchange.

(4) It adopts new type of feeding and discharging device, thus completely eradicating feeding blockage, incontinuity, uneven and returning charge and reducing the load of the dust collection system.

(5) The new type of internal structure strengthens the clearance and heat conduction of the scattered materials and eliminates the stickiness of materials on the internal wall of the cylinder, so that it has stronger adaptability to the water content and stickiness of the materials.

(6) Furnace slag drying machine realizes zero horizontal thrust, thus greatly reducing the abrasion of the catch wheel and riding wheel and making the operation of the cylinder stable and reliable.

(7) Furnace slag drying machine adopts self-aligning riding wheel device, so that the matching of the riding wheel and the roller ring is always in a linear contact state, thus greatly reducing the abrasion and power consumption.

(8) According to the customers' requirement, it can control the product granularity and water content. The water content of the final products can reach below 8% and the granularity can be controlled to below 8mm.

Furnace slag drying machine shipping:

Derui service:

Installation and guidance

When the machine arrives at your company, we will dispatch our technicians to your company to guide the installation and commissioning at site. User should pay for the following fees air tickets, boarding and lodging and traffic in client’s factory. Allowance is about 70USD per day.

Technical training

We provide free technical training service to your stuff. Training content contains the main work principle of machine, operating regulations, maintenance methods and steps, safety, etc.

Warranty: one year (not include man-made damaged).

In order to help you to recommend suitable Furnace slag drying machine , can you tell me the following information in your inquiry?

1. What is the material you want to dry?

2. What is the moisture of the feed materials?

3. What is the final moisture you want to get?

4.What is the hear source?(firewood, coal, heat gas or electricity)

4. What is the production capacity per hour or per day?

How to visit us ?

If you want to visit our factory, please note our city name, Zhengzhou City, Henan Province, China(mainland)

Our air port name is : Zhengzhou Xinzheng International air port.

Train station name is: Zhengzhou (Zhengzhou north) train station