Grounding calcium bentonite-based resistance-reducing agent

A technology of calcium-based bentonite and resistance-reducing agent, which is applied in application, connection, and soil conditioning materials, can solve the problems that the grounding resistance of the grounding system is difficult to meet the power industry standard, the resistance-reducing effect is not good, and the soil water retention is poor. Good economic effect, low price, and the effect of increasing electrical conductivity

Active Publication Date: 2016-09-21
ELECTRIC POWER RES INST STATE GRID JIANGXI ELECTRIC POWER CO +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In areas such as sandy land and mountainous areas, the water retention of the soil is poor, resulting in high soil resistivity, which makes it difficult for the grounding resistance of the grounding system to meet the power industry standard
The commonly used methods to reduce the grounding resistance of the grounding system include increasing the cross-section of the grounding body and increasing the area of ​​the grounding grid. However, these methods greatly increase the amount of steel used, increase the cost, and have problems such as large construction volume and poor resistance reduction effect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The first step, take 10 parts of ammonium persulfate, 1 part of sodium tripolyphosphate, and 1 part of sodium molybdate to make a mixed solution, wherein the mass ratio of ammonium persulfate, sodium tripolyphosphate, sodium molybdate to water is 1:6 .

[0033] In the second step, 10 parts of aniline, 10 parts of ammonium chloride, and 26 parts of calcium-based bentonite were added to the mixed solution, wherein the mass ratio of aniline, ammonium chloride, calcium-based bentonite to the mixed solution was 1:1, and mechanically stirred for 30 minutes. Leave for 4 hours.

[0034] In the third step, 8 parts of carbon fiber, 2 parts of graphene, 1 part of zinc powder, 1 part of aluminum powder, and 10 parts of calcium oxide are added to the above mixture and mixed evenly.

[0035] The fourth step, finally add 20 parts of conductive cement, mix evenly and wrap around the grounding body.

Embodiment 2

[0037] In the first step, get 8 parts of ammonium persulfate, 1.5 parts of sodium tripolyphosphate, and 1.5 parts of sodium molybdate to make a mixed solution, wherein the mass ratio of ammonium persulfate, sodium tripolyphosphate, sodium molybdate to water is 1:6 .

[0038] In the second step, 8 parts of aniline, 9 parts of ammonium chloride, and 25 parts of calcium-based bentonite were added to the mixed solution, wherein the mass ratio of aniline, ammonium chloride, calcium-based bentonite to the mixed solution was 1:1, and mechanically stirred for 40 minutes. Leave for 5 hours.

[0039] In the third step, 9 parts of carbon fiber, 1 part of graphene, 1 part of zinc powder, 1 part of aluminum powder, 1 part of nickel powder, and 9 parts of calcium oxide were added to the above mixture, and mixed evenly.

[0040] The fourth step, finally add 25 parts of conductive cement, mix evenly and wrap around the grounding body.

Embodiment 3

[0042] In the first step, get 7 parts of ammonium persulfate, 2 parts of sodium tripolyphosphate, and 2 parts of sodium molybdate to make a mixed solution, wherein the mass ratio of ammonium persulfate, sodium tripolyphosphate, sodium molybdate to water is 1:6 .

[0043] In the second step, 7 parts of aniline, 8 parts of ammonium chloride, and 30 parts of calcium-based bentonite were added to the mixed solution, wherein the mass ratio of aniline, ammonium chloride, calcium-based bentonite to the mixed solution was 1:1, and mechanically stirred for 30 minutes. Leave for 5 hours.

[0044] In the third step, 9 parts of carbon fiber, 3 parts of graphene, 2 parts of zinc powder, 2 parts of nickel powder, and 8 parts of calcium oxide were added to the above mixture, and mixed evenly.

[0045] The fourth step, finally add 20 parts of conductive cement, mix evenly and wrap around the grounding body.

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PUM

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Abstract

The invention provides a grounding calcium bentonite-based resistance-reducing agent, comprising(according to mass percent) 1-99%calcium bentonite; 1-30% carbon fiber; 0.1-30% ammonium chloride; 0.1-30% calcium oxide; 0.1-30% zinc powder; 0.1-30% nickel powder; 0.1-60%ammonium persulfate; 0.1-15% sodium molybdate; 5-60% electroconductive cement; 0.1-6% grapheme; 0.1-30%aluminite powder; 0.1-60% aniline; and 0.1-15% sodium tripolyphosphate. The grounding calcium bentonite-based resistance-reducing agent is a physical grounding resistance-reducing agent, overcomes the disadvantage of difficulty in package and construction of a present resistance-reducing agent, solves the problems of stronger corrosivity of the strong electrolyte and strong acid and strong base in the present resistance-reducing agent, and the problem of incapability of long-term normal service of a grounding body, and is suitable for acid soil regions, mountain regions, rock, sand and high corrosion regions.

Description

technical field [0001] The invention relates to a calcium-based bentonite-based resistance reducing agent for grounding, which belongs to the technical field of electric grounding materials. Background technique [0002] Resistance reducing agent is an engineering material widely used in electrical grounding and lightning protection, especially in areas with high soil resistivity, it has a good resistance reducing effect. [0003] In areas such as sandy land and mountainous areas, the water retention of the soil is poor, resulting in high soil resistivity, which makes it difficult for the grounding resistance of the grounding system to meet the power industry standard. The commonly used methods to reduce the grounding resistance of the grounding system include increasing the cross-section of the grounding body and increasing the area of ​​the grounding grid. However, these methods greatly increase the amount of steel used, increase the cost, and have problems such as large c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/00H01B13/00H01R4/66H01R43/00C09K17/40C09K109/00
CPCC09K17/40C09K2109/00H01B1/00H01B13/00H01R4/66H01R43/00
Inventor 刘欣裴锋田旭张宇史晓燕李财芳蒋磊李多生刘志雷刘光明黄健航陈田邓志祥
Owner ELECTRIC POWER RES INST STATE GRID JIANGXI ELECTRIC POWER CO
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