Crushing method for recycling bark resources

A technology of resource utilization and bark, which is applied in the separation of raw materials, wood processing equipment, manufacturing tools, etc., can solve the problems of poor production environment, easy blockage, and more dust, and achieve the goal of reducing energy consumption, high toughness, and improving the environment. Effect

Active Publication Date: 2011-04-13
湖南骏泰新材料科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Drum chippers are used for small and medium-diameter wood and wood processing residues to cut wood chips, but ther...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Remove the discharge sieve plate of the drum chipper, adjust the rotating speed of the knife roller of the drum chipper, so that the linear speed of the flying knife installed on the knife roller is 1400 m / min, and the bark conveyed by the feeding belt conveyor The ratio of the speed to the rotational speed of the flying knife installed on the drum chipper is 1:38; the blade angle of the flying knife of the drum chipper is 30 degrees, and the eucalyptus bark with a moisture content of 45% is collected and sent to the belt Conveyor, after the metal material is removed by the electromagnetic iron absorber installed above the bark conveyor, the belt conveyor transports the bark to the drum chipper, and after the drum chipper, the bark is crushed into a length not exceeding The 5cm material is sent to the bark warehouse through the discharge belt conveyor after crushing.

[0018] According to the actual operation test, the power consumption per ton of bark crushing is 28kwh...

Embodiment 2

[0020] Remove the discharge sieve plate of the drum chipper, adjust the rotating speed of the cutter roller of the drum chipper, so that the linear speed of the flying knife installed on the cutter roller is 1250 m / min, and the bark conveyed by the feeding belt conveyor The ratio of the speed to the rotational speed of the flying knife installed on the drum chipper is 1:34. The blade angle of the flying knife of the drum chipper is 31.5 degrees, and the eucalyptus bark with a moisture content of 51% is collected and sent to the belt Conveyor, after the metal material is removed by the electromagnetic iron absorber installed above the bark conveyor, the belt conveyor transports the bark to the drum chipper, and after the drum chipper, the bark is crushed into a length not exceeding The material of 5cm is sent to the bark warehouse through the belt conveyor after crushing.

[0021] According to the actual operation test, the power consumption of each ton of bark crushing is 30kw...

Embodiment 3

[0023] Remove the discharge sieve plate of the drum chipper, adjust the rotating speed of the cutter roller of the drum chipper, so that the linear speed of the flying knife installed on the cutter roller is 1350 m / min, and the bark conveyed by the feeding belt conveyor The ratio of the speed to the rotational speed of the flying knife installed on the drum chipper is 1:36. The blade angle of the flying knife of the drum chipper is 34 degrees, and the poplar bark with a moisture content of 60% is collected and sent to the belt Conveyor, after the metal material is removed by the electromagnetic iron absorber installed above the bark conveyor, the belt conveyor transports the bark to the drum chipper, and after the drum chipper, the bark is crushed into a length not exceeding The material of 5cm is sent to the bark warehouse through the belt conveyor after crushing.

[0024] According to the actual operation test, the power consumption of each ton of bark crushing is 30kwh, whi...

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PUM

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Abstract

The invention discloses a crushing method for recycling bark resources, which comprises the following steps of: (1) collecting barks and conveying to a belt conveyer; (2) conveying the barks to bark crushing equipment by using the belt conveyer; and (3) crushing the barks by using a drum chipper, and conveying the barks to a bark storehouse through the belt conveyer. By adopting the drum chipper, the bark crushing capacity and efficiency can be improved, the energy consumption can be reduced, particularly longer barks which contain bast fibers and are high in toughness and hardly crushed by the conventional crusher can be treated, and the energy consumption is reduced greatly.

Description

technical field [0001] The invention relates to a pretreatment method for resourceful utilization of bark in pulping, papermaking and wood processing industries, in particular to a crushing method for resourceful utilization of bark. Background technique [0002] Solid biomass waste such as bark and saw dust is produced during the preparation process of wood raw materials for pulping and papermaking, with a calorific value of 3000-4000kcal / kg and a moisture content of 30%-75%. There is a large amount of solid waste, and most enterprises use it for sale or landfill disposal, which has become a difficult problem in environmental governance. However, these wastes are relatively concentrated and have a high calorific value. If scientifically comprehensive utilization can save resources and reduce the impact on the environment pollution. In recent years, as the price of primary energy such as coal has risen, it is a good choice to use circulating fluidized bed boilers or biomass...

Claims

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Application Information

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IPC IPC(8): B27L11/06D21B1/34
Inventor 周鲲鹏徐远梅黄百文夏照利熊伟
Owner 湖南骏泰新材料科技有限责任公司
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