Product Description

The slime dryer is a rotary drum or rotary drum dryer. It is a very mature drying equipment produced by mining equipment manufacturers. It is suitable for drying coal slime, sludge, metal and Various industries such as non-metallic minerals' magnetic, heavy and float concentrates, and clays in the cement industry. It is characterized by high productivity and easy operation. The cylinder is a horizontal rotary cylinder, and its interior is welded with various copy plates with different angles in a staggered arrangement from the front to the back. According to the different needs of users, the interior of the slime dryer cylinder can be designed and equipped with refractory materials for temperature insulation. The feed end is equipped with a door ring and a spiral copy plate to prevent the material from being poured. It has the advantages of reasonable structure, excellent production, high output, low energy consumption, and convenient operation. In addition, after years of unremitting efforts, the R&D department of our company can use the exhaust gas of the boiler as the heat source of the slime dryer, and successfully launched the dryer using the boiler exhaust gas. No investment in heating, no cost in heat use, real energy saving and drying, real energy saving and environmental protection.

Coal slime itself has high humidity and high cohesiveness. Traditional dryers failed to address this feature. The special dryer for slime uses a unique dispersing device, which can disperse the bonded slime and dry it. The contact area between coal slime and hot air is enlarged, and the heat utilization rate is greatly improved. The dried slime can reduce the moisture to below 12% at one time, and the dried slime can be directly used as fuel. Make slime turn waste into treasure.

Product Advantage

The potential characteristics of slime dryer:

1. The dryer has strong anti-overload ability, large processing capacity, low fuel consumption and low drying cost;

2. Adopting the downstream drying method, the flue gas and the wet material enter the dryer from the same side, and the high temperature flue gas can be used to obtain high evaporation intensity, the outlet temperature of the dryer is low, and the thermal efficiency is high;

3. The operating parameters can be changed according to different material properties, so that the material can form a stable full-break fabric curtain in the dryer cylinder, and the mass and heat exchange is more sufficient;

4. The new feeding and discharging device eliminates the jamming, discontinuity, unevenness and return of the drum dryer feeding, and reduces the load of the dust removal system;

5. The new internal structure strengthens the cleaning and heat conduction of dispersed materials, eliminates the sticking phenomenon of the inner wall of the cylinder, and is more adaptable to the moisture and viscosity of the material;

6. The dryer achieves "zero horizontal thrust", which greatly reduces the wear of the retaining wheel, and the cylinder runs smoothly and reliably;

7. The dryer adopts the "adjustable supporting roller device", so that the supporting roller and the rolling ring are always in linear contact, thereby greatly reducing wear and power loss;

8. The product particle size and moisture can be controlled according to user requirements. When drying slime, the product moisture can reach below 8%, and the particle size can be controlled below 8mm.

Working Principle

The slime dryer is a new type of special drying equipment consisting of a heat source, a dispersing device, a belt feeder, a feeder, a rotary drum, a belt discharger, an induced draft fan, a discharger and a power distribution cabinet. Energy-saving slime dryer is a new type of drying equipment developed on the basis of drum dryers. It can be widely used in the drying of coal industry materials such as slime, raw coal, flotation clean coal, mixed clean coal, etc.; blast furnace slag , Clay, bentonite, limestone, sand, quartz stone and other construction industry materials; drying of various metal concentrates, waste residues, tailings and other mineral processing industry materials; and the drying of non-heat sensitive materials in the chemical industry. The slime dryer can well solve the problem of slime reuse, and can process 200 tons, 300 tons, 500 tons, 800 tons, 1,000 tons, 1,200 tons, 1,500 tons, and 2,000 tons of slime per day.

Coal slime itself has high humidity and high cohesiveness. During the drying process, the wet slime enters the slime dispersing equipment through the belt conveyor, and the massive slime that is quickly disintegrated enters the negative pressure dryer and is divided into the following parts. Four working areas: one is the guide area. When wet coal slime enters this area and contacts with high temperature and negative pressure hot air, it quickly evaporates a large amount of water. The coal slime is moved by the large guiding angle of the board. Lead into the next working area; the second is the cleaning area, where the wet slime is picked up by the slab to form a material curtain. When the material falls, it is easy to form a sticking drum wall phenomenon. In this area, the equipment is designed with cleaning devices and cleaning devices. The slime on the wall of the bonded cylinder can be quickly cleaned. In this process, the cleaning device also breaks the agglomeration of the material, thereby increasing the heat exchange area, improving the efficiency of heat and mass transfer, and improving the drying rate; The third is the inclined lifting plate area. This area is a low-temperature drying area. The coal slime is already in a low-moisture and loose state in this area. There is no adhesion phenomenon in this area. After heat exchange, the finished product meets the required moisture requirements and moves into The fourth is the discharging zone. The dryer drum is not equipped with a copy board in this zone. The material rolls and slides to the discharge opening in this zone to complete the entire drying process.