Product Description

Mineral powder dryer is mainly used to dry powdery materials. It can also be called powder dryer. It is a special drying equipment developed for powder materials, which can effectively reduce the moisture of materials and remove oil pollutants. After the wet material is added to the dryer, the material is evenly distributed and dispersed in the dryer under the turning of the evenly distributed plate copying device in the cylinder, and fully contacted with the co-current (counter-current) hot air, which speeds up the drying heat and mass transfer .

Product Advantage

Product advantages

1. High thermal efficiency: The gas material is operated downstream, the high-temperature flue gas is first contacted, and the heat transfer method is reasonable.

2. Low energy consumption: Due to the high thermal efficiency of the dryer, the coal consumption for the dryer is greatly reduced. In addition, the drying system has no large electrical equipment and no transmission except for the fan and electric interceptor, so the energy consumption of the system is much lower than that of ordinary dryers.

3. Long life: The internal temperature of the dryer is set relatively high, and the main influence on its life is the high temperature resistance of the internal components. The bulk material cone and sliding material bowl of JH high-efficiency vertical desulfurization gypsum dryer are made of wear-resistant and heat-resistant alloys, which greatly extend the service life, and the entire equipment basically does not need to be repaired.

4. Investment province: The ore powder dryer covers an area of only 100m2, and there is no need to build additional workshops. The civil construction investment is only about 1/5 of that of the rotary dryer. In addition, the dryer has no rotating parts, is simple to manufacture and install, and the equipment investment is about 60% lower than that of the rotary dryer.

Product Parameter

technical parameter

Specification model (mm)	Rotating speed (r/min)	Slope (%)	Intake air temperature (℃)	Production capacity (t/h)	weight (t)
Ф800×8000	3-8	3-5	≤700	0.8-2.0	3.5
Ф800×10000	3-8	3-5	≤700	0.8-2.5	4.5
Ф1000×10000	3-8	3-5	≤700	1.0-3.5	5.6
Ф1200×10000	3-8	3-5	≤700	1.8-5	14.5
Ф1200×12000	3-8	3-5	≤700	2-6	14.8
Ф1500×12000	2-6	3-5	≤800	3.5-9	17.8
Ф1800×12000	2-6	3-5	≤800	5-12	25
Ф2200×12000	1.5-6	3-5	≤800	6-15	33
Ф2200×18000	1.5-6	3-5	≤800	10-18	53.8
Ф2200×20000	1.5-6	3-5	≤800	12-20	56
Ф2400×20000	1.5-5	3-5	≤800	18-30	60
Ф3000×20000	1.5-5	3-5	≤800	25-35	78
Ф3000×25000	1.5-5	3-5	≤800	32-40	104.9

Working Principle

Structure principle

The wet material is sent to the hopper by a belt conveyor or bucket elevator, and then enters the feeding end through the feeding pipe through the feeding machine of the hopper. The inclination of the feeding pipe should be greater than the natural inclination of the material so that the material can flow into the dryer smoothly.

The dryer cylinder is a rotating cylinder slightly inclined to the horizontal. The material is added from the higher end, and the heat carrier enters from the lower end, and it contacts the material in countercurrent, and there is also the heat carrier and the material flow into the cylinder side by side. With the rotation of the cylinder, the material moves to the lower end under the action of gravity. When the wet material moves forward in the cylinder, it directly or indirectly receives heat from the heating medium, so that the wet material can be dried, and then sent out through a belt or screw conveyor at the discharge end.

A copy board is installed on the inner wall of the cylinder. Its function is to pick up and scatter the materials to increase the contact surface between the materials and the airflow, so as to increase the drying rate and promote the advancement of the materials. The heating medium is generally divided into hot air, flue gas and so on. After the heating medium passes through the dryer, a cyclone dust collector is generally required to capture the materials carried in the gas. If it is necessary to further reduce the dust content of the exhaust gas, it should be discharged after passing through a bag filter or a wet dust collector.

Drying system

The mineral powder dryer is mainly composed of rotating cylinder, induced air equipment, high-speed dispersing equipment, lifting plate, self-cleaning device, transmission device, conveying equipment, hot air equipment, reducer, supporting device and sealing device.