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Light Material Drying Production System

System Introduction

In recent years, with the increasing of environmental resources, the comprehensive utilization of biomass energy has become more and more important to us. Due to the high moisture content of the sawdust, broken wood, which leads the incomplete combustion, resulting in that the spark burns the dust bag at the back of the drying plant, which not only causes the excessive emissions, but also it’s with high cost to change the dust bag. In the process of producing wood products and biomass fuels with high burning combustion value, wood chips and broken dregs are required to do the drying process.

Process Flow

After being fed into the hopper, under the function of gravity the raw material will fall onto the belt conveyor laid under the bottom of the hopper, and then which will be conveyed onto the screening machine, the massive, strip and other irregular material will be separated out after screening, and uniform particles will be conveyed to the feeding end of the dryer (The single cylinder or three cylinder dryer will be chosen as per the service condition) by the belt conveyor under the screening machine. The feeding end of the dryer is connected with heat source and the discharging end is linked with pulse air pipes. The fire wall will be setted up in the hot blast stove in order to guarantee the safety of the drying process, to eliminate the phenomenon of material burning in the dryer, and the heat passing through pipe will be installed between the hot blast stove and the dryer as the section of heat buffer. The material will brought into the diameter-transformed pulse pipe after being dried and the dehydration for the first time inside of the dryer, which will be in a suspended boiling form at the large diameter of the pulse pipe, and then it will be quickly dried after contacting with the exhausted heat wind from dryer. And the material will be driven out of the pulse pipe by strong winds and moved into the first stage cyclone collector when its water content reaches the design requirement, and 80% of dried material will be collected, and then get into the second stage cyclone collector after passing through the induced draft fan to collect the left material. The second stage cyclone collector can be replaced by the bag type dust collector.

System Advantages

Intensive drying strength with short drying time

The light material drying system has advanced design, which let the material has the full contact in the dryer, the full surface area of the particles is the effective drying area, and it has Intensive drying strength. With the pulse air flow dryer, drying time is only half of the regular dryer, the efficiency of the drying machine is greatly increased

Low drying cost with high drying efficiency

The light material drying system has advanced structure, with small mall covered area, easy to construct and to do maintenance. The thermal efficiency can reach 90% when it dries unbound water.

Good drying effect with high level of automation

The final moisture is stable (10%-13%) after the regular light material being dried, and the dried material doesn’t contain impurities. The hot blast stove can be matched with the super temperature alarm, flame monitoring device, tempering alarm, fuel isolation device, which can ensure the safety of combustion.

Technical Parameters

Model

Cylinder diameter(mm)

Cylinder length(mm)

Cylinder volume(m3)

Cylinder rotary speed (r/min)

Power(kW)

Weight(t)

VS0.6x5.8

600

5800

1.7

1-8

3

2.9

VS0.8x8

800

8000

4

1-8

4

3.5

VS1x10

1000

10000

7.9

1-8

5.5

6.8

VS1.2x5.8

1200

5800

6.8

1-6

5.5

6.7

VS1.2x8

1200

8000

9

1-6

5.5

8.5

VS1.2x10

1200

10000

11

1-6

7.5

10.7

VS1.2x11.8

1200

11800

13

1-6

7.5

12.3

VS1.5x8

1500

8000

14

1-5

11

14.8

VS1.5x10

1500

10000

17.7

1-5

11

16

VS1.5x11.8

1500

11800

21

1-5

15

17.5

VS1.5x15

1500

15000

26.5

1-5

15

19.2

VS1.8x10

1800

10000

25.5

1-5

15

18.1

VS1.8x11.8

1800

11800

30

1-5

18.5

20.7

VS1.8x15

1800

15000

38

1-5

18.5

26.3

VS1.8x18

1800

18000

45.8

1-5

22

31.2

VS2x11.8

2000

11800

37

1-4

18.5

28.2

VS2x15

2000

15000

47

1-4

22

33.2

VS2x18

2000

18000

56.5

1-4

22

39.7

VS2x20

2000

20000

62.8

1-4

22

44.9

VS2.2x11.8

2200

11800

44.8

1-4

22

30.5

VS2.2x15

2200

15000

53

1-4

30

36.2

VS2.2x18

2200

18000

68

1-4

30

43.3

VS2.2x20

2200

20000

76

1-4

30

48.8

VS2.4x15

2400

15000

68

1-4

30

43.7

VS2.4x18

2400

18000

81

1-4

37

53

VS2.4x20

2400

20000

91

1-4

37

60.5

VS2.4x23.6

2400

23600

109

1-4

45

69.8

VS2.8x18

2800

18000

111

1-3

45

62

VS2.8x20

2800

20000

123

1-3

55

65

VS2.8x23.6

2800

23600

148

1-3

55

70

VS2.8x28

2800

28000

172

1-3

75

75

VS3x20

3000

20000

141

1-3

55

75

VS3x23.6

3000

23600

170

1-3

75

85

VS3x28

3000

28000

198

1-3

90

91

VS3.2x23.6

3200

23600

193

1-3

90

112

VS3.2x32

3200

32000

257

1-3

110

129

VS3.6x36

3600

36000

366

1-3

132

164

VS3.8x36

3800

36000

408

1-3

160

187

VS4x36

4000

36000

452

1-3

160

195

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