Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of preparation method of the binder of low ignition point burning resistant semi-coke briquettes

A binder and ignition technology, which is applied in the fuel, solid fuel, petroleum industry and other directions, can solve the problems of lower ignition point, fast combustion rate, non-flammable semi-coke briquette ignition, etc. The effect of ignition difficulty

Active Publication Date: 2021-03-05
SHAANXI COAL & CHEM IND NEW ENERGY GRP CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art, and to provide a method for preparing a binder of low-flame-resistant semi-coke briquettes, which introduces a phosphorus compound during the preparation of the semi-coke briquette binder In the initial combustion stage of semi-coke briquettes, phosphorus compounds promote the carbonization of carbon-based materials, and the residual carbon fills some pores while volatilizing low-molecular substances, reducing the ignition point, and essentially solving the problem of semi-coke. Briquette is not flammable when ignited and the burning rate is fast

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
  • A kind of preparation method of the binder of low ignition point burning resistant semi-coke briquettes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] This embodiment includes the following steps:

[0025] Step 1. Weigh 99.5% of the flake graphite and 0.5% of the phosphorus compound according to the mass percentage, dissolve the weighed phosphorus compound in the ethanol solution first, and then put the weighed flake graphite into the dissolved phosphorus compound After reacting for 65 minutes at a temperature of 90° C., the graphite flakes were taken out and vacuum-dried to obtain modified graphite flakes. The phosphorus-based compound is sodium phosphate, the ethanol solution is an ethanol solution with a mass concentration of 95%, and the ratio of the total volume of the phosphorus-based compound and flake graphite to the volume of the ethanol solution is 1:1.

[0026] Step 2. Take 83% of the polymer carbon-based mixture and 17% of the modified flake graphite obtained in step 1 according to the mass percentage, and put the weighed polymer carbon-based mixture and the modified flake graphite into the mixer After mi...

Embodiment 2

[0028] This embodiment includes the following steps:

[0029] Step 1. Weigh 99.7% of the flake graphite and 0.3% of the phosphorus compound according to the mass percentage, dissolve the weighed phosphorus compound in the ethanol solution, and then put the weighed flake graphite into the dissolved phosphorus compound After reacting for 50 minutes at a temperature of 85° C. in ethanol solution, the graphite flakes were taken out and vacuum-dried to obtain modified graphite flakes. The phosphorus compound is ammonium phosphate, the ethanol solution is an ethanol solution with a mass concentration of 95%, and the ratio of the total volume of the phosphorus compound and flake graphite to the volume of the ethanol solution is 1:1.

[0030] Step 2. Weigh 85% of the polymer carbon-based mixture and 15% of the modified flake graphite obtained in step 1 according to the mass percentage, and put the weighed polymer carbon-based mixture and the modified flake graphite into the mixer Aft...

Embodiment 3

[0032] This embodiment includes the following steps:

[0033] Step 1. Weigh 99.5% of the flake graphite and 0.5% of the phosphorus compound according to the mass percentage, dissolve the weighed phosphorus compound in the ethanol solution first, and then put the weighed flake graphite into the dissolved phosphorus compound After reacting for 55 minutes at a temperature of 80° C., the graphite flakes were taken out and vacuum-dried to obtain modified graphite flakes. Described phosphorus compound is ammonium phosphate and sodium phosphate (mass ratio 1:1), and described ethanol solution is the ethanol solution that mass concentration is 95%, and the total volume of described phosphorus compound and flake graphite and described ethanol solution The volume ratio is 1:1.

[0034] Step 2. Take 83% of the polymer carbon-based mixture and 17% of the modified flake graphite obtained in step 1 according to the mass percentage, and put the weighed polymer carbon-based mixture and the m...

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
volatile matteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a low-fire-point burning-resistant binding agent for semi-coke coal. The method comprises the following steps: 1, weighing 99.5%-99.8% by mass of flakegraphite and 0.2%-0.5% by mass of a phosphorus-based compound, dissolving the weighed phosphorus-based compound into an ethanol solution, putting the weighed flake graphite into the ethanol solution,performing a reaction for 50-70 min under the temperature condition of 80-100 DEG C, taking out the flake graphite, and performing vacuum drying to obtain modified flake graphite; and 2, weighing 80%-85% by mass of a high-molecular carbon-based mixture and 15%-20% by mass of the modified flake graphite obtained in the step 1, putting the weighed high-molecular carbon-based mixture and the modifiedflake graphite into a material mixing machine, and performing mixing for 4-6 min to obtain the binding agent for the semi-coke coal. The method provided by the invention effectively solves the practical problem that current semi-coke coal is difficult to ignite and not resistant to burning.

Description

technical field [0001] The invention belongs to the technical field of semi-coke briquette binders, in particular to a method for preparing a binder for low-flame-point, fire-resistant semi-coke briquettes. Background technique [0002] Semi-coke is a product of weakly caking or non-caking coal with high volatile content as raw material, which is produced by carbonization at medium and low temperature to remove tar substances and most of the volatile matter in coal. Semi-coke has the advantages of high fixed carbon, high specific resistivity, high chemical activity, low ash, low sulfur, low phosphorus, and low moisture. The production of silicon, chemical fertilizers and other products has become an irreplaceable carbon material. At present, my country's scattered coal treatment mainly promotes the application of "coal to electricity" and "coal to gas" to replace the original scattered coal, but "coal to electricity" and "coal to gas" have high cost in winter, and Natural g...

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 Patents(China)
IPC IPC(8): C10L5/10
CPCC10L5/105
Inventor 刘新成李增林方刚庞青涛王俊哲
Owner SHAANXI COAL & CHEM IND NEW ENERGY GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com