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General purpose type wood substance grain forming technique

A wood pellet, general-purpose technology, applied in application, feed, food science, etc., can solve the problems of less pellets, high output energy consumption, inability to meet pelletizing and other problems, reduce energy consumption per unit of output, and expand the scope of application Effect

Inactive Publication Date: 2008-06-11
吉林宏日新能源股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This molding process can pelletize the raw materials of some tree species (for example: white pine, red pine, masson pine, fir, chestnut, etc.), but the energy consumption per unit output of molding is high; but some tree species raw materials (for example: Pinus sylvestris, The lignin content of oak, catalpa, basswood, willow, poplar, etc.) is low, which reduces lubricants and adhesives. In this way, it is more difficult to form granules and there are fewer granules. Pressing, the raw materials will be crushed more and more between the ring die and the pressing roller, and most of them will be crushed into powder. The more powder, the less granules, the harder it is to shape, forming a vicious circle, and finally no shape at all. , the raw material leaked out from the die hole, and the granulation process failed
Therefore, using the existing ring die feed pellet molding machine cannot satisfy the pellet molding of all tree species raw materials

Method used

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  • General purpose type wood substance grain forming technique

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Referring to Fig. 1, the raw material 3 is miscellaneous wood mixed sawdust, which is changed from the Shende 420 ring die livestock and poultry feed pellet mill to a wood pellet pellet mill. The main motor of the original granulator is 2×55kW-4P (4 poles), the rated speed of the motor is 1450rpm, the motor drives the pressure roller 2 to rotate, the speed R of the ring die 1 is 335rpm, the inner diameter of the ring die is Φ420mm, and the line speed v of the ring die is 7.37m / s; changed to the main motor 2×55kW-6P (6 poles), the rated speed of the motor is 960rpm, the speed R of the ring die 1 is 222rpm, the inner diameter of the ring die is Φ420mm, and the line speed v of the ring die is 4.88m / s. The diameter of the die hole is 6-8mm, and the ratio of the diameter to the length of the ring die hole 4 is 1:6-1:10.

[0015] 80% of the particle size of raw material 3 is 3-4mm, and the remaining particle size is less than 1mm. The output of the granulator is 1.5-1.8t / h, a...

Embodiment 2

[0017] Referring to Fig. 1, raw material 3 is sawdust, which is changed from Shende 520 ring die livestock and poultry feed granulator to wood pellet granulator. The main motor of the original granulator is 2×75kW-4P (4 poles), the rated speed of the motor is 1450rpm, the transmission ratio is 1:4.33, the speed R of the ring die is 335rpm, the inner diameter of the ring die is Φ520mm, and the line speed v of the ring die is 9.12m / s; change the main motor to 2×75kW-6P (6 poles), the rated speed of the motor is 960rpm, the transmission ratio is increased to 1:8.22, the speed R of the ring die is 176rpm, the inner diameter of the ring die is Φ520mm, and the line speed v of the ring die is 4.8 m / s, the diameter of the ring die hole is 6-8mm, and the ratio of the diameter to the length of the ring die hole 4 is 1:5-1:9.

[0018] The particle size of 80% of the raw materials is 3-4mm, and the remaining particle size is less than 1mm. The output of the granulator is 2.0-2.5t / h, and ...

Embodiment 3

[0020] Referring to Fig. 1, raw material 3 is sylvestris sylvestris shavings, which is changed from Zhengchang 300 ring die livestock and poultry feed granulator to wood pellet granulator. The main motor of the original granulator is 30kW-4P (4 poles), the rated speed of the motor is 1450rpm, the motor drives the pressure roller 2 to rotate, the speed R of the ring die is 378rpm, the inner diameter of the ring die is Φ300mm, and the line speed v of the ring die is 6.08m / s ;The main motor is still 30kW-4P (4 poles), increase the frequency converter, adjust the motor speed from the rated speed to 725~1015rpm (frequency conversion frequency 25~35Hz), the ring die speed R is 189~265rpm, the inner diameter of the ring die Φ300mm, the ring die line speed v is 3.04-4.26m / s, the ring die aperture is 6-8mm, and the diameter-to-length ratio of the ring die hole 4 is 1:6-1:10.

[0021] The particle size of 80% of the raw materials is 3-4mm, and the remaining particle size is less than 1m...

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Abstract

The invention discloses a universal wood pellet forming technique, which changes the mechanical parameter of a circular mould feed pellet forming machine on the basis of a current circular mould feed pellet forming machine. The circular mould line speed of the circular mould wood pellet forming machine is 1.5-5.5 m / s, the ratio of the diameter and the length of a circular mould hole is 1:6-1:10. The invention adjusts the circular mould line speed of the circular mould wood pellet forming machine into the range which is suitable for pellet forming of various wood materials, simultaneously improves the circular mould and compression roller parameter of the circular mould feed pellet forming machine, which is extensively applied in the pellet forming of various wood materials, and enlarges the application range of raw materials for production. The machinery strength of pellet product completely reaches the standard of Sweden wood pellets, and the energy consumption of unit output is significantly reduced.

Description

Technical field: [0001] The invention provides a general-purpose wood particle molding technology, which belongs to the technical field of powdery material molding. Background technique [0002] Usually, wood pellet molding is to use the existing ring die feed pellet molding machine under high temperature and high pressure conditions, and use lignin softening as a lubricant and binder to reduce the compression resistance of pellet molding and improve the adhesion of materials. The pressed wood pellets have greater strength. This molding process can pelletize the raw materials of some tree species (for example: white pine, red pine, masson pine, fir, chestnut, etc.), but the energy consumption per unit output of molding is high; but some tree species raw materials (for example: Pinus sylvestris, The lignin content of oak, catalpa, basswood, willow, poplar, etc.) is low, which reduces lubricants and adhesives. In this way, it is more difficult to form granules and there are f...

Claims

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Application Information

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IPC IPC(8): A23N17/00
Inventor 陈喜龙
Owner 吉林宏日新能源股份有限公司
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