Unlock instant, AI-driven research and patent intelligence for your innovation.

Online integrated continuous rapid moisture and ash content determination device and method

A rapid determination of moisture, applied in measuring devices, by removing certain components to weigh, analyze materials, etc., can solve problems such as expensive, cumbersome operation, and non-representative, so as to improve production rate and work efficiency , fast and accurate price, and the effect of improving reliability

Active Publication Date: 2020-04-28
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is the testing standard for all measuring instruments, but it has the disadvantages of cumbersome operation, continuous measurement of moisture and ash, and long time consumption. It cannot realize rapid and continuous sample measurement, and cannot satisfy the rapid determination of some parameters in the process of process testing.
The industrial analyzer used in the laboratory can continuously measure moisture, ash, and volatile matter in a variety of ways, but the measurement time is long, taking 1-2 hours, and it takes longer to measure samples with high water content and difficult to burn through in the actual industry , the accuracy is poor; and only samples <100mg can be analyzed, which is not representative
However, foreign instruments with high measurement capacity are relatively expensive and take a long time to measure, which is not suitable for industrial requirements.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Online integrated continuous rapid moisture and ash content determination device and method
  • Online integrated continuous rapid moisture and ash content determination device and method
  • Online integrated continuous rapid moisture and ash content determination device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The determination of the moisture and ash content of the Shenmu bituminous coal used in the experiment includes the following steps:

[0041] (1) Before the start of the test, use a standard thermocouple to calibrate the temperature range first, measure the moisture at about 150°C, measure the ash at about 820°C, determine the position of the elevator, and record it by the computer;

[0042] (2) Put the distribution plate groove in the reaction tube, adjust the gas (nitrogen or air) flow rate (20ml / min), the mesh number of the raw coal is below 2.5mm, select the distribution plate groove with an aperture of 0.7cm, and determine the analytical balance Zero point, take out the groove.

[0043] (3) Place about 700mg of crude coal sample in the corundum hanging basket in the device, automatically read the initial mass of the sample, put it into the groove of the distribution plate selected in step (2), raise it to a temperature range of 150°C, and The inlet pipe feeds nitr...

Embodiment 2

[0050] For the determination of the moisture and ash content of the generated slag samples with high water content, select the slag samples with large water content in step (2), select the distribution plate groove of 0.5 cm, and determine the zero point of the balance, and the rest of the steps are the same as in Example 1. The measurement time is <30min, and the comparison between the measured results and the national standard is as follows:

[0051] Table 2

[0052]

Embodiment 3

[0054] For most of the fine powder samples smaller than 0.5 mm, a 1 cm distribution plate groove is selected in step (2) to determine the zero point of the analytical balance, and the rest of the steps are the same as in Example 1. The measurement time is <10min, and the comparison between the measured results and the national standard is as follows:

[0055] table 3

[0056]

[0057] The comparison of three examples shows that the device of the present invention measures a large number of solid samples faster than the national standard method, and can provide data for continuous industrial test operation; for samples with coarser particles, the error is greater and the time-consuming is longer.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
pore sizeaaaaaaaaaa
pore sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses an online integrated continuous rapid moisture and ash content determination device and method. The rapid moisture and ash content determination device mainly comprises a lifting part, a heating part, a temperature control part, a sample weighing part, a device support frame and a numerical control part, and is simple, easy to obtain and low in cost. The determination method comprises the following steps: putting a crude sample into a large corundum hanging basket; placing a corresponding distribution plate groove and keeping the hanging basket in a temperature intervalof about 150 DEG C; introducing nitrogen and carrying out heating until the mass is constant; then feeding the sample into a temperature region of about 820 DEG C, and introducing air until the massis constant; and automatically obtaining a weightlessness curve, and obtaining moisture and ash contents. The whole process can be completed within half an hour according to the difference of the samples. The device and the method have the advantages that the moisture and ash contents of a large-amount (more than or equal to 100mg) sample can be measured in real time in a large-scale process, themeasurement speed is high (a powdery coal sample can be measured within ten minutes), the operation is convenient, and the equipment cost is low.

Description

technical field [0001] The invention relates to an on-line integrated continuous rapid determination device and method for moisture and ash, specifically for solid samples such as coal, coke, fine powder, ash, etc. Device and method for continuous rapid determination. Background technique [0002] During various coal and biomass-related industrial and process tests, it is necessary to monitor the moisture and ash content of the material in real time in order to quickly calculate the carbon balance, and then adjust the corresponding process conditions to improve the yield and work efficiency. The larger the weight of the sample taken, the stronger the representativeness, but the corresponding measurement time is longer. The present invention is designed to solve this problem in fast real-time industrial sample moisture and ash analysis. The determination of moisture and ash is based on the national standard GB / T212. The determination principle is: under a certain time and co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04
CPCG01N5/04G01N5/045
Inventor 宋双双李勇博王志青董立波黄戒介房倚天
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI