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Asphalt removal method for waste sleeper

A sleeper, waste technology, applied in the field of asphalt removal of waste sleeper wood, to save resources and prevent pollution

Inactive Publication Date: 2015-05-06
SUIZHONG WEIMING HEYI RENEWABLE MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method solves the technical problem of asphalt removal and recycling of waste sleepers by soaking waste sleepers wood with gasoline

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] 1) Peeling of waste sleepers: Use a cutting saw to cut the two ends and four sides of waste sleepers, peel them, and become wood;

[0011] 2) Soak wood in gasoline: Put the peeled wood into a closed material box of gasoline, soak for 12 hours at room temperature to dissolve the asphalt in the wood into gasoline, and then remove the wood from the closed material box The gasoline solution used for soaking is separated and treated;

[0012] 3) Removal of gasoline from wood: Put the fished wood into a closed retort box, heat it at 80°C, and keep it for 10 hours to remove the gasoline and remaining asphalt vapors in the wood to obtain clean asphalt-free and gasoline-free remaining finished timber;

[0013] 4) Separation of gasoline and asphalt: The gasoline solution and evaporated gas used for soaking are cooled to 10°C by a cooler and collected. The precipitated part is asphalt, and the liquid part is gasoline. After filtration and separation, the solid asphalt is recycled...

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PUM

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Abstract

The invention provides an asphalt removal method for a waste sleeper. The asphalt removal method for the waste sleeper includes: waste sleeper peeling, soaking of the sleeper through gasoline, removal of gasoline solvent of the sleeper and separation of the gasoline and asphalt. According to the method, the waste sleeper is soaked by the gasoline, the asphalt is removed, and recycling of the waste sleeper is achieved. The asphalt removal method for the waste sleeper has the advantage of turning waste into treasure, saving resource, avoiding pollution and being suitable for being used as a method for recycling of the asphalt removed from the waste sleeper.

Description

technical field [0001] The invention provides a method for recycling waste wood, in particular a method for removing asphalt from waste sleeper wood. Background technique [0002] At present, with the modernization of the railway, the original wooden sleepers can no longer be used as sleepers, but the sleepers are all good wood, which can also be recycled as wood. For anti-corrosion and waterproofing, sleepers need to be impregnated with bitumen. There is no problem in using asphalt-treated sleepers as sleepers, but waste and old sleepers continue to be used as wood, because of the asphalt, so not only the smell is unpleasant, but also the appearance is black, and there is no way to finish the surface. Therefore, it is generally used as firewood. application. Since wood sleepers are good wood, it is a waste of resources to use them as firewood. Therefore, how to recycle waste sleepers is the key to the success or failure of resource recycling. However, to achieve the regen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27M1/08B27K5/00
Inventor 曹文波苏阳唐武才
Owner SUIZHONG WEIMING HEYI RENEWABLE MATERIALS TECH
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