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Building decoration waste derived fuel and method for preparing same

A garbage-derived fuel and construction technology, applied in the field of solid waste resource utilization, can solve the problem of no mature utilization of organic components, achieve high social and environmental benefits, and reduce the use of coal

Inactive Publication Date: 2017-01-11
SHANGHAI RES INST OF BUILDING SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The waste concrete obtained by sorting can be prepared into recycled aggregate, which can be used for the laying of sewer pipelines, bridgehead backfill, roadbed backfill, etc.; the waste metal obtained by magnetic separation has high utilization value and can be recycled directly; There is no mature way to use the organic components separated by processes such as air separation and winnowing

Method used

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  • Building decoration waste derived fuel and method for preparing same
  • Building decoration waste derived fuel and method for preparing same
  • Building decoration waste derived fuel and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Put 6kg of organic light component samples of construction and decoration waste sorted out by the sorting line into a shear crusher for 10 minutes, then add 2kg of coal powder and 0.5kg of quicklime in the mixer and mix for 10 minutes, then add 1.5kg of water-containing The river silt with a concentration of 50% is fully stirred for 5 minutes until the silt slurry fully wraps the light component fragments of decoration waste. Sampling was put into a metal test mold of Φ30mm×30mm, and the pressure was stabilized at 15KN for 5 minutes, and then the mold was removed to obtain a cylindrical construction and decoration waste-derived fuel.

[0027] Refer to GB / T 212-2008 "Measurement method for calorific value of coal" and use the automatic oxygen bomb calorimeter method to measure the calorific value of each component in the raw material and the calorific value of the fuel derived from construction and decoration waste, refer to GB / T 15459-2009 "Coal The method for measuring...

Embodiment 2

[0033] Select coal dust, silt and unslaked lime to be three kinds of additives as research object, take the proportioning described in embodiment 1 as benchmark proportioning (60wt% construction and decoration waste organic light component, 20wt% coal dust, 15wt% river course silt , 5wt% quicklime), using the raw materials and preparation process in Example 1 to prepare construction and decoration waste RDF with different additive ratios, and analyze the influence of each additive ratio change on the RDF calorific value.

[0034] Among them, the variation range of pulverized coal is 0%, 10%, 20%, 30%; the variation range of sludge is 0%, 10%, 15%, 20%, 30%, and the variation range of quicklime Set at 0%, 5%, 10%, 15%, 20%. When studying the influence law of specific additives, the dosage of other components shall be adjusted in equal proportions according to the initial ratio in the base ratio. The specific ratio is shown in Table 2.1, and the test results are as follows fig...

Embodiment 3

[0038] Taking the proportioning described in Example 1 as the benchmark proportioning (60wt% construction and decoration waste organic light components, 20wt% pulverized coal, 15wt% river silt, 5wt% quicklime), adjust the moisture content of the silt to 30% respectively , 50%, 70%, to test the mechanical strength of fuel derived from construction and decoration waste under different dosage conditions (0%, 5%, 10%, 15%, 20%, 25%, 30%). The experimental results are as figure 2 shown.

[0039] The change of the moisture content of the sludge has a significant impact on the adhesiveness of the sludge. If the moisture content is too low, the sludge will be dry and hard. If the moisture content is too high, the fluidity of the sludge will be too large. Both situations are not conducive to adhesion. Sexual play.

[0040]When the amount of silt is below 25% and the amount is the same, the mechanical strength of RDF mixed with 50% water content silt is higher than that of RDF mixed ...

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Abstract

The invention discloses building decoration waste derived fuel and a method for preparing the same. The building decoration waste derived fuel comprises, by weight, (50-75) wt% of organic light components, (0-30) wt% of pulverized coal, (0-30) wt% of river silt and (0-20) wt% of quicklime. Building decoration waste is sorted to obtain the organic light components, the organic light components are used as main raw materials for the building decoration waste derived fuel, and the pulverized coal, the river silt and the quicklime are used as additives and are added into the organic light components. The method includes proportionally mixing the organic light components from the building decoration waste, the pulverized coal, the river silt and the quicklime with one another to obtain mixtures; carrying out compression molding and processing on the mixtures to obtain the building decoration waste derived fuel. The building decoration waste derived fuel and the method have the advantages that a heat value of the building decoration waste derived fuel prepared by the aid of the method can reach (20000-25000) kJ / kg, the mechanical strength of the building decoration waste derived fuel can reach 90% at least, a chlorine element consolidation proportion can reach 78% at least, and the building decoration waste derived fuel can be used as environment-friendly regenerated fuel in the pyroelectricity industry to partially replace coal; the building decoration waste and the river silt which are two types of solid waste can be recycled, and a way with high additional values can be provided for utilizing the building decoration waste and the river silt.

Description

technical field [0001] The invention belongs to the technical field of resource utilization of solid waste, and in particular relates to a fuel derived from construction and decoration waste and a preparation method thereof. Background technique [0002] Refuse Deprival Fuel (RDF for short) refers to a solid fuel made by crushing, drying and molding waste plastics, waste paper, waste wood, waste textiles and other components sorted from waste. Municipal solid waste is generally used as raw material for waste-derived fuel, and the calorific value of the prepared waste-derived fuel is (14595-20016) kJ / kg, which can be used as fuel for thermal power plants, steel plants, and industrial boilers. Other solid wastes containing combustible components can also be used to prepare RDF. [0003] Construction and decoration waste is a special type of construction waste, which is produced in the process of indoor and outdoor decoration in urban areas. In recent years, with the prosperi...

Claims

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Application Information

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IPC IPC(8): C10L5/46C10L5/04C10L5/10
CPCY02E50/10Y02E50/30C10L5/46C10L5/04C10L5/10C10L2200/029C10L2230/22C10L2290/24C10L2290/28C10L2290/32C10L2290/546
Inventor 樊俊江杨利香
Owner SHANGHAI RES INST OF BUILDING SCI CO LTD
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