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Leaking stoppage material of coal car and preparation thereof

A technology for plugging leakage materials and coal transportation vehicles, which is applied in chemical instruments and methods, transportation and packaging, and other chemical processes. The effect of bonding solidification plugging performance and excellent mechanical properties

Active Publication Date: 2011-11-09
CHINA SHENHUA ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the labor intensity is high, the on-site construction requires too much manpower, the construction is difficult, and the braid impurities are introduced into the coal, which affects the use of users and causes adverse consequences

Method used

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  • Leaking stoppage material of coal car and preparation thereof
  • Leaking stoppage material of coal car and preparation thereof
  • Leaking stoppage material of coal car and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] This embodiment is a formula suitable for the plugging material used in summer.

[0037] Curing component:

[0038] Quick-setting cement 19.7wt%

[0039] Lime 10.0wt%

[0040] Polyacrylamide powder 0.3wt%;

[0041] Plugging skeleton components:

[0042] Coal powder 65.0wt%

[0043] Talc 5.0wt%;

[0044] Determine the amount of adhesive based on the ratio of the total solid amount of the above-mentioned curing component and plugging skeleton component: adhesive amount = 55%: 45%;

[0045] The composition of described adhesive component is:

[0046] Carboxymethylcellulose 6.0wt%

[0047] Polyvinyl alcohol 2.0wt%

[0048] Water-Alcohol 92.0wt%

Embodiment 2

[0050] This embodiment is a formula suitable for the plugging material used in spring.

[0051] Curing component:

[0052] Quick-setting cement 25.0wt%

[0053] Lime 10.0wt%

[0054] Plugging skeleton components:

[0055] Coal powder 60.0wt%

[0056] Talc 5.0wt%;

[0057] Determine the amount of adhesive based on the ratio of the total solid amount of the above-mentioned curing component and plugging skeleton component: adhesive amount = 55%: 45%;

[0058] The composition of described adhesive component is:

[0059] Carboxymethylcellulose 6.0wt%

[0060] Polyacrylamide 0.3wt%

[0061] Polyvinyl alcohol 1.0wt%

[0062] Water-Alcohol 92.7wt%

Embodiment 3

[0064] This example is for reference figure 1 A specific embodiment of preparing adhesive:

[0065] (1) Preparation of polyacrylamide-organic bentonite emulsion: first dissolve polyacrylamide in water to make a 2% solution, then add bentonite and stir evenly to form a white emulsion.

[0066] (2) Preparation of adhesive: add pure water to the reactor, heat to boiling, add polyvinyl alcohol while stirring, wait for the polyvinyl alcohol to dissolve, add carboxymethyl cellulose and alcohol, keep below 85°C to continue the reaction To form a transparent solution, add polyacrylamide-organic bentonite emulsion, stir evenly, cool down and discharge to obtain an adhesive. The conversion ratio of each component is

[0067] Solid carboxymethyl cellulose 6.0wt%

[0068] Solid polyacrylamide 0.3wt%

[0069] Solid polyvinyl alcohol 1.0wt%

[0070] Water-Alcohol 92.7wt%

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Abstract

The invention provides a leakage stoppage material for a coal vehicle and a preparation method thereof. The leakage stoppage material comprises an adhesive component, a leakage stoppage framework component, and a curing component, wherein the leakage stoppage framework component contains coal powder, the curing component contains quick-setting cement, and the adhesive component contains carboxymethyl cellulose and water. The leakage stoppage material comprises components by weight percentage: 10 to 20 weight percent of quick-setting cement, 30 to 50 weight percent of coal powder, and 40 to 50weight percent of adhesive, wherein the content of the carboxymethyl cellulose in the adhesive component is between 4 and 9 weight percent. The leakage stoppage material has a simple preparation process, excellent adhesion performance, and convenient site operation.

Description

technical field [0001] The invention relates to a leak-stopping material for a coal truck and a preparation method thereof. Background technique [0002] my country is a big country of coal production and consumption, with an annual output of more than 1.7 billion tons. Nearly 80% of the coal is transported by rail each year and sent to all parts of the country and export ports. At present, there are large gaps in the doors of coal wagons transported by railways, and there are serious leakage problems during coal transportation. According to relevant data, my country's annual loss of coal due to transportation leakage is about 10 million tons, exceeding 1% of the total output of the year. It not only causes resource and economic losses, but also brings serious dust pollution to the environment along the way. [0003] In order to solve the problem of large door gaps caused by the deformation of the carriages and the loss of coal spills caused by the damage of the carriages,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/12C09J101/26B65G69/18
Inventor 顾大钊陈怀珍陈振龙顾小愚谷红伟李侃社蔡会武陈创前
Owner CHINA SHENHUA ENERGY CO LTD
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