When discussing the importance of coal in industrial usage, we often overlook a key factor: moisture. Wet coal, which contains higher levels of moisture, is an inevitable byproduct of coal mining. However, before industrial utilization, wet coal needs to undergo drying treatment to reduce its moisture content. Why is that? This is because high moisture content can adversely affect the combustion efficiency and calorific value of coal, leading to energy waste and environmental pollution. Therefore, the emergence of coal dryer machines is crucial. These coal dryers effectively reduce the moisture content of wet coal, thereby improving its combustion efficiency and utilization value.
Traditional dryers have not been improved to cater to the characteristics of coal. Therefore, using traditional dryers for coal drying is difficult, with the process being hard to control. The resulting product from traditional drying machines often has uneven moisture content, with the exterior being dry while the interior remains wet. Moreover, traditional rotary dryers are costly and unsuitable for coal drying. With the advancement of technology, new types of coal rotary dryers have emerged. ZONEDING has developed coal dryers specifically designed for coal drying, taking into account the unique drying characteristics of different types of coal. These coal dryer machines offer advantages such as high processing capacity, low drying costs, minimal wear and tear, and stable operation, making them bestsellers in the market for many years.
Structural Advantages of Coal Dryer Machine
The minimization of the drying cost. The two ends of the cylinder are sealed well and heat is preserved to decrease the heat loss. It adopts the low-cost coal as the heat source fuel to reduce the fuel expenditure. In addition, coal drying machine is in fully automatic to reduce manpower cost.
Maximum safe production. Full automation during the whole production process prevents the occurrence of accidents.
High-quality finished product. Coal dryer adopts three-layer settlement structure to reduce the dust pollution of the material. High-temperature rapid process reduces the organic elements loss of the material. Online moisture inspection and fuzzy control, the water content of material is consistent after the drying process.
High drying strength. The water removal amount per hour can reach up to a maximation of 8000KG with continuous production.
High drying efficiency. Coal dryer adopts high-temperature rapid drying process; the hot air temperature utilization has been increased by 40 percentage points compared with the normal low temperature drying method. With the heating system with as high as 90% thermal efficiency, the overall thermal efficiency of the dryer amounts to 73%. Part of the heated air will be put into the head end for continuous heating, which reduces heat loss.
Working Principle of Coal Dryer Machine
Wet coal of a certain humidity firstly passes through a professionally designed dispersion device. The well-dispersed coal is conveyed to the feeder, by which it is then fed into the cylinder. Here in the rolling drum, wet coal is thrown up and down by blades and gets water and heat exchanged. The dried coal is belched out of the drum by the star-shaped unloader and conveyed to the package. The entire drying process is completed.
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General Specification
Coal Dryer Machine
Spec./m (Dia.×Length)
Shell Cubage (m³)
Capacity (t/h)
Installation Obliquity(%)
Highest Inlet Air Temperature(℃)
Main Motor (kw)
Weight (t)
Φ1.2×8.0
9.0
1.9~2.4
3~5
700~800
7.5
9
Φ1.2×10
11.3
2.4~3.0
3~5
700~800
7.5
11
Φ1.5×12
21.2
4.5~5.7
3~5
700~800
15
18.5
Φ1.5×14
24.7
5.3~6.6
3~5
700~800
15
19.7
Φ1.5×15
26.5
5.7~7.1
3~5
700~800
15
20.5
Φ1.8×12
30.5
6.5~8.1
3~5
700~800
18.5
21.5
Φ1.8×14
35.6
7.6~9.5
3~5
700~800
18.5
23
Φ2.2×12
45.6
9.7~12.2
3~5
700~800
22
33.5
Φ2.2×14
53.2
11.4~14.2
3~5
700~800
22
36
Φ2.2×16
60.8
13.0~16.2
3~5
700~800
22
38
Φ2.4×14
63.3
13.5~16.9
3~5
700~800
37
45
Φ2.4×18
81.4
17.4~21.7
3~5
700~800
37
49
Φ2.4×20
90.4
19.3~24.1
3~5
700~800
45
54
Φ2.4×22
99.5
21.2~26.5
3~5
700~800
45
58
Φ2.6×24
127.4
27.2~34.0
3~5
700~800
55
73
Φ3.0×20
141.3
30.1~37.7
3~5
700~800
75
85
Φ3.0×25
176.6
37.7~47.1
3~5
700~800
75
95
Φ3.2×25
201
42.9~53.6
3~5
700~800
90
110
Φ3.6×28
285
60.8~76.0
3~5
700~800
160
135
Trusted Sand Dryer Manufacturer——Zoneding
Zoneding is your trusted manufacturer and designer of sand dryers. Over the years, we have accumulated rich experience in the industry, always committed to providing excellent product quality and premium customer service. At Zoneding, we understand the importance of product quality, so we rigorously control every production process to ensure that each piece of equipment meets the highest standards. Furthermore, we prioritize user experience. From manufacturing to delivery, and from installation to commissioning and after-sales service, we have a professional team to follow up on every step, ensuring your user experience is worry-free.
Our product range also includes grinding mills, crushers, conveyors, feeding machine as well as beneficiation equipment, fine sand recycling equipment etc,which are widely applied in electricity, metallurgy, mine and quarry ,wharf, granary, chemical industry. Zoneding can provide you with safe and reliable solutions. Choosing Zoneding means not only getting high-quality products but also experiencing our professional, meticulous, and attentive service. Let’s work together to create a better future!
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