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Method and device for detecting metal aluminum content in burned ash

A technology of incinerating ash and metal aluminum, applied in the direction of analysis materials, instruments, etc., can solve the problems of devices and methods without aluminum content detection, and achieve the effect of saving reagents, low device requirements, and good sealing

Inactive Publication Date: 2015-04-22
浙江海宁经编产业园区开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At present, there is no device and method for detecting aluminum content in fine materials in China

Method used

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  • Method and device for detecting metal aluminum content in burned ash
  • Method and device for detecting metal aluminum content in burned ash

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] combined with figure 1 The device for detecting the metal aluminum content in the incineration ash of the present invention is described, figure 1 It is a preferred mode of the device for detecting the metal aluminum content in the incineration ash of the present invention. The device for detecting the content of metal aluminum in the incineration ash includes a large beaker 1, a small beaker 2 placed in the large beaker 1 where the incineration ash sample can be placed, a measuring cylinder 3 with a hole at the bottom, and an air needle needle connected to an air pump at one end Magnetic stirring bar 9 is placed in the described small beaker 2; The graduated cylinder 3 of the bottom opening is inverted, covers the small beaker 2 in the large beaker 1, and the small hole at the bottom of the graduated cylinder is sealed with rubber pad 4; The large beaker 1 is placed on a temperature-adjustable heater 5, and a thermometer 8 is arranged in the large beaker 1, and the he...

Embodiment 2

[0041] The specific operation steps are:

[0042] (1) Accurately weigh 2g of naturally mined fine sand materials for construction (can pass through a 2mm standard sieve) and a small piece of aluminum foil (the content of metal aluminum is 97%, others are magnesium, copper, etc.), the mass is 0.27g, and will be weighed The measured aluminum foil is buried in fine sand, then placed in a 20mL small beaker, and a magnetic stirring bar is placed in the small beaker; the small beaker with fine sand, aluminum foil and magnetic stirring bar is placed in a 1000mL large beaker , put a measuring cylinder with a small hole at the bottom upside down, cover the small beaker in the large beaker, the volume of the measuring cylinder is V 0 =800mL, the diameter of the small hole at the bottom of the graduated cylinder is 0.35cm, and the small hole is air-tightly sealed with a rubber pad and glue;

[0043] (2) Pour the sodium hydroxide solution with a mass concentration of 5% into a large beak...

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Abstract

The invention discloses a method and a device for detecting metal aluminum content in burned ash. The method comprises the following steps of placing a burned ash sample into a small-opening glass vessel with a magnetic stirring stick, then placing the burned ash sample into a large-opening glass vessel, reversely arranging a measuring cylinder and covering the small-opening glass vessel, perforating the bottom of the measuring cylinder, and sealing a hole in the bottom of the measuring cylinder by a rubber leather pad and glue; pouring a sodium hydroxide solution with the concentration of 4 to 5 percent into the large-opening glass vessel, inserting a head of an air needle into the small hole which is formed in the bottom of the measuring cylinder and stuck with the rubber leather pad, and extracting air; performing heating and stirring reaction, recording a liquid level height value of the solution in the measuring cylinder until the liquid level height is not changed, and recording the volume V1 corresponding to the final liquid level height; and calculating the volume of hydrogen according to a volume difference, and calculating the mass percentage of metal aluminum and the mass percentage of the metal aluminum in the burned ash. The invention provides the simple and quick method for precisely measuring the metal aluminum content in the burned ash; the method is easy to operate and execute; a requirement on a device is low; an alkaline solution reagent can be repeatedly used; and the accuracy is high.

Description

technical field [0001] The invention relates to the technical field of detection of metal aluminum content in fine materials, especially for the incineration fly ash produced after incineration of urban domestic garbage, industrial garbage and medical garbage containing high aluminum waste content and the incineration of particles with a particle size less than 2mm Determination of metallic aluminum content in bottom ash. Background technique [0002] Rapid economic development, accelerated urbanization, and gradual transformation of industrial production have led to an increase in the output of various types of municipal waste, including municipal solid waste, medical waste, and industrial waste, and the physical components have also undergone tremendous changes compared with the past decade. , the content of metal waste in these wastes varies significantly. Due to the rich resources of metal aluminum, low price, and easy molding, it is widely used in daily life and indust...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N7/18
Inventor 胡艳军
Owner 浙江海宁经编产业园区开发有限公司