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Method for detecting content of mud in limestone

A detection method and limestone technology, which are applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by causing chemical reaction of materials, etc., can solve the problem of long inspection time, inability to guarantee quality production, and inability to respond in time. Production quality and other issues, to achieve the effect of accurate test results and short testing time

Active Publication Date: 2013-01-02
SICHUAN ESHENG CEMENT GROUP
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Problems solved by technology

However, as the amount of limestone continues to increase, the production and quality of limestone cannot be guaranteed. The control method adopted is controversial. The main reason is that limestone crushing will produce stone powder, which leads to the use of existing limestone mud. The results obtained by the detection method include both the mud content and the stone powder content, that is, the test results are inaccurate; and the inspection takes a long time, which cannot reflect the production quality in time, which brings difficulties to production and quality control. For example, once the mud content exceeds the standard , will directly affect the quality of cement products, so it is necessary to strengthen its quality control

Method used

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  • Method for detecting content of mud in limestone
  • Method for detecting content of mud in limestone
  • Method for detecting content of mud in limestone

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preparation example Construction

[0029] Preparation of A standard sample:

[0030] Mud powder: take a mine soil sample, soak it in water to separate the mud and limestone, and make a fine powder with a particle size of less than 0.08mm; the soil here is preferably the mud in the original ecology;

[0031] Limestone and limestone powder: take limestone from the mine, wash it with water, dry and crush it, and screen the ones with a particle size greater than 0.08mm as limestone samples, and those with a particle size smaller than 0.08mm as limestone powder samples; here the mine limestone is preferably blasted. Limestone blocks, not contaminated by mud;

[0032] Prepare the obtained mud powder, limestone powder and limestone as a standard sample for the methylene blue test, and the configuration of the standard sample is in accordance with the following principles:

[0033] Wherein, P is the percentage that the quality of mud powder and limestone powder accounts for the total mass of the standard sample, a...

Embodiment

[0059] Adopt the method of the present invention to detect the mud content in the limestone of Xingyang Village, Jiuli Town, Mount Emei, Sichuan, in mining limestone, and the specific operations are:

[0060] 1 Preparation of standard samples:

[0061] Mud powder: choose 10kg of mine-covered mountain soil, soak it with water, pass through a 0.08mm square hole sieve to remove the sieve residue, leave the remaining mud to drain the surface water, and then dry it in an oven at 105°C, and then use manual methods. Fine powder passed through a 0.08mm square hole sieve, about 4kg for standby;

[0062] Limestone and limestone powder: select clean limestone from Esheng Mine, wash the surface with water, dry it, and crush it mechanically. Screen 40kg of limestone samples with a particle size of 2.36mm~0.08mm, and screen 4kg of limestone powder samples below 0.08mm;

[0063] Prepare standard samples (each standard sample is 200g):

[0064] When preparing the standard sample, the amount...

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Abstract

The invention relates to the technical field of detection of mixing materials, in particular to a method for detecting content of mud in limestone. The detection method particularly comprises the steps as follows: A, preparing a standard sample, that is, obtaining mine soil samples to prepare mud powder with a grain size smaller than 0.08mm, obtaining mine limestone, screening limestone samples with a grain size larger than 0.08mm and limestone powder with a grain size smaller than 0.08mm, and preparing a methylene blue testing sample by using the mud powder, the limestone powder and the limestone according to the following principles; B, detecting consumption V of methylene blue solution of the standard sample obtained in the step A by using a methylene blue testing method and building a corresponding relationship among V, P and W; and C, obtaining W1 of the to-be-detected sample obtained through a passing rate P1 of the to-be-detected sample with a grain size smaller than 0.08mm, the consumption V1of a methylene blue solution and the relationship among the V, the P and the W in the contrast step B, so as to obtain the content of mud in the sample to be detected. The detection method is accurate in test result and short in time for detection.

Description

technical field [0001] The invention relates to the technical field of detection of mixed materials for cement, in particular to a detection method for mud content in limestone for cement. Background technique [0002] Due to the increasing scarcity of traditional cement admixture resources, companies now use limestone to replace admixture raw materials, which has brought good economic benefits. However, as the amount of limestone continues to increase, the production and quality of limestone cannot be guaranteed. The control method adopted is controversial. The main reason is that limestone crushing will produce stone powder, which leads to the use of existing limestone mud. The results obtained by the detection method include both the mud content and the stone powder content, that is, the test results are inaccurate; and the inspection takes a long time, which cannot reflect the production quality in time, which brings difficulties to production and quality control. For ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
Inventor 胡朝春谭承林齐涛军
Owner SICHUAN ESHENG CEMENT GROUP
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