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Method for measuring mechanical strength of semi-coke for ferrosilicon production

A technology of mechanical strength and measurement method, which is applied in the direction of strength characteristics, measuring devices, testing wear resistance, etc., can solve the problems of inconvenient field application, insufficient precision of the method, and many samples

Pending Publication Date: 2021-04-30
内蒙古鄂尔多斯电力冶金集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Another evaluation method for the mechanical strength of lump coal is the drop test. Take a 2kg lump coal sample larger than 15mm, drop it 4 times over 5 meters, and calculate the percentage of less than 6mm after sieving; but the above two methods take more samples, which is not convenient for large-scale production. field application, and the precision of the method is not high enough, which needs further improvement

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  • Method for measuring mechanical strength of semi-coke for ferrosilicon production
  • Method for measuring mechanical strength of semi-coke for ferrosilicon production
  • Method for measuring mechanical strength of semi-coke for ferrosilicon production

Examples

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Embodiment 1

[0066] A method for measuring the mechanical strength of small material semi-coke for ferrosilicon production, the steps are:

[0067] S1. Sampling: Manually use ice shovel to sample. Shenmu County Yintong Trading Co., Ltd. takes 4 points of semi-coke per car, with a total amount of 2700g, mixes the mixture evenly, and then unloads the mixture into a cone, and finally surrounds the strip cone. Take samples from 2 / 3 to 1 / 2 of the body height, take 2 points each inside and outside, to get blue carbon raw material samples, scrape off the surface part with an ice shovel when sampling, insert it flat and deep into the pile, do not only take the surface part, and take samples Avoid selecting semi-charcoal with watering phenomenon;

[0068] S2. Sample preparation: take 1500g of blue charcoal raw material sample, sieve to select a sample of 8-13mm, and shrink it to 310g for later use;

[0069] S3. Test:

[0070] (1) Turn on the power of the PL-2L ball mill, and set the rotation spee...

Embodiment 2

[0087] A method for measuring the mechanical strength of small material semi-coke for ferrosilicon production, the steps are:

[0088] S1. Sampling: Manually use ice shovels to sample. Shenmu County Dongyuan Coal Chemical Co., Ltd. takes 4 points for each car, and takes 2 shovels for each point, with a total amount of 2500g. Mix evenly to obtain a mixture, and then unload the mixture It is a cone, and finally samples are taken around the height of 2 / 3 to 1 / 2 of the strip cone, and 2 points are taken from the inside and outside respectively to obtain a sample of blue carbon raw material. Do not only take the surface part of the pile, and avoid selecting semi-coke with watering phenomenon when sampling;

[0089] S2. Sample preparation: take 1500g of blue carbon raw material sample, sieve and select a sample of 8-13mm (do not use large particles and crush it to the required particle size), and shrink it to 285g for later use;

[0090] S3. Test:

[0091] (1) Turn on the power of...

Embodiment 3

[0108] A method for measuring the mechanical strength of small material semi-coke for ferrosilicon production, the steps are:

[0109] S1. Sampling: Manually use ice shovel to sample. Shenmu County Yinquan Coal Chemical Co., Ltd. takes 5 points of semi-coke per car, with a total amount of 2800g, mixes it evenly to obtain a mixture, then unloads the mixture into cones, and finally surrounds it in strips Sampling is carried out at 2 / 3 to 1 / 2 of the height of the cone, and 3 points are taken inside and outside each. When sampling, use an ice shovel to scrape off the surface part, and insert it flat and deep into the stockpile. Do not only take the surface part. Avoid selecting semi-charcoal with watering phenomenon when sampling;

[0110] S2, sample preparation: take 1600g of blue charcoal raw material sample, sieve and select a sample of 8-13mm (do not use large particles and crush it to the required particle size), and shrink it to 325g for later use;

[0111] S3. Test:

[01...

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Abstract

The invention relates to the field of ferrosilicon production, in particular to a method for measuring mechanical strength of semi-coke, which comprises the steps of sampling, sample preparation, testing and result calculation, wherein the result relative standard deviation (RSD) is less than 10 percent. The method has the advantages that the method is different from a drum test method adopted by national standard coke strength, has the characteristics of small sampling amount, good repeatability and convenience in operation, and is convenient for field application.

Description

technical field [0001] The invention relates to the technical field of ferrosilicon production, in particular to a method for measuring the mechanical strength of blue carbon for ferrosilicon production. Background technique [0002] Semi-coke, also known as semi-coke and coke powder, is fired from the high-quality Jurassic clean coal abundant in Shenfu Coalfield. A new type of carbon material, with its characteristics of high fixed carbon, high specific resistance, high chemical activity, low ash content, low aluminum, low sulfur, and low phosphorus, has gradually replaced metallurgical coke and is widely used in calcium carbide, ferroalloys, and ferrosilicon. , silicon carbide and other products have become an irreplaceable carbon material. [0003] Years of production practice have shown that using semi-coke as a reducing agent to produce ferrosilicon has significant advantages in reducing consumption, increasing production and improving product quality. However, there ...

Claims

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Application Information

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IPC IPC(8): G01N3/02G01N3/04G01N3/56G01N5/04
CPCG01N3/02G01N3/04G01N3/56G01N5/04Y02P10/20
Inventor 刘坤仑解荣永邸俊明牛强
Owner 内蒙古鄂尔多斯电力冶金集团股份有限公司
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