CN1030872C - Solid resistance-reducing agent for grounding - Google Patents
Solid resistance-reducing agent for grounding Download PDFInfo
- Publication number
- CN1030872C CN1030872C CN 90109011 CN90109011A CN1030872C CN 1030872 C CN1030872 C CN 1030872C CN 90109011 CN90109011 CN 90109011 CN 90109011 A CN90109011 A CN 90109011A CN 1030872 C CN1030872 C CN 1030872C
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- Prior art keywords
- earthing
- reducing agent
- solid
- resistance reducing
- resistance
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- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The present invention relates to a conductive material, particularly to an earthing conductive material of solid inorganic chemistry. The present invention is a solid earthing resistance reducing agent which is suitable for thunder preventing earthing and working earthing, and is especially suitable for computer earthing and communication earthing. The solid earthing resistance reducing agent is composed of high alumina cement, sepiolite, zeolite, graphite, rare earth oxide, magnetic iron powder, zinc powder and magnesium powder, and has the characteristics of resistance reduction, voltage sharing, corrosion prevention, no toxicity, no pollution, no corrosion, good heat stability, convenient use, packaging, storage and transportation, etc., and the solid earthing resistance reducing agent is prepared at normal temperature and normal pressure; compared with other resistance reducing agents, the present invention has low cost and price, and is favorable for popularization and application.
Description
The present invention relates to electric conducting material, relate in particular to solid inorganic chemistry ground connection electric conducting material.Be a kind of be applicable to lightning protection, working earthing, more be applicable to the inorganic-chemical solid reducer of ground resistance of computer ground connection and communication ground connection.
Grounding resistance is the key technical indexes of electrical system earthing device, and this resistance is the smaller the better.Resistance reducing agent except that considering resistance value, the factors such as considering its raw material sources, characteristic, price of still needing.Patent Office of the People's Republic of China is 88105882.3 authorization CN1009683B in the application number of authorization on September 19th, 90 bulletin, and name is called " inorganic-chemical solid reducer of ground resistance " the former inventor's of being invention.This invention is through service test; have fall resistance, all press, anticorrosion, long-acting, no burn into is nontoxic, pollution-free and earth electrode had advantages such as passivity protection, overcoat protection, cathodic protection; but also there is certain deficiency; mainly be fill a prescription too loaded down with trivial details; therefore some composition, content do not bring outstanding gratifying effect to the resistance reducing agent performance; some composition even the situation of its effect of cancelling out each other is arranged, and product cost still can reduce.
The objective of the invention is to foregoing invention, on prescription, make improvements, under the condition that keeps its advantage, overcome the above-mentioned deficiency of in service test, finding, further improve the performance of resistance reducing agent, to bring better techno-economic effect.
The object of the present invention is achieved like this: to the different composition proposals of solid resistance reducing agent constituent, contrast, screening test have been carried out, in the hope of compared to prior art solid resistance reducing agent complex art economic effect is good technical scheme, is defined as technical scheme of the present invention.Be that its technical characterictic is that constituent is alumina cement, sepiolite, zeolite, graphite, rare earth oxide, magnetic iron powder, zinc powder, magnesium powder.On the basis of determining its constituent, again the content range of its each composition is tested, determine to connect weight percent meter, the content range of each composition is: alumina cement 0.01～60%; Sepiolite＞20～90%; Zeolite＞10～60%; Graphite＞20～50%; Rare earth oxide 0.00～20%; Magnetic iron powder 0.00～50%; Zinc powder 0.00～36%; Magnesium powder 0.00～20%.
The present invention compares with CN1009683B " solid inorganic chemical resistance-reducing agent ": replace potassium sulfate, aluminum sulfate and Portland cement with alumina cement, sulfate radical-free then more helps the raising of antiseptic property; Do not contain A type, X type and Y zeolite, through evidence the resistance reducing agent performance is not had big influence, and cost is reduced; Replace rare earth compound with rare earth oxide, the resistance reducing agent performance is had raising, and easier Jie of these raw material sources determines through evidence; After particularly having simplified prescription, by constituent scheme of the present invention evidence, the present invention has enough antiseptic properties, the original advantage that still has " solid inorganic chemical resistance-reducing agent ", to then influencing very little useful life, cost is then greatly reduced, bring significant techno-economic effect and social benefit.Specific performance relatively sees Table 1.Table 1 can illustrate advance of the present invention.
The specific embodiment of the invention sees Table 2.Table 2 further specifies the technical characterictic that the present invention has.
Table 2
The various resistance-reducing performance comparison sheets of table 1
| The friction reducer title | Prescription | Profile | PH value | Each ground unit consumption (kilogram) | Every meter horizontal grounding consumption (kilogram) | Resistance-reducing yield (%) | Corrosivity/contaminative | Toxicity/stability (year) | Penetration/shock-resistant ability (thousand peace) | Per 30 liter prices (unit) |
| The CN1009683B inorganic-chemical solid reducer of ground resistance | The kinds more than 20 such as zinc, zinc oxide, aluminum aluminum oxide, ammonium chloride magnesium sulfate, manganese, graphite, aluminosilicate, molecular sieve | Pressed powder | 7～9 | 8～12 | 4～6 | 50～80 | Do not have/do not have | Do not have/40 | By force/60 | 6.67～10 |
| A kind of solid grounded resistance reducing agent of the present invention | Alumina cement, sepiolite, zeolite, magnetic iron powder, zinc powder, magnesium powder rare earth oxide graphite | Pressed powder | 7～9 | 6～10 | 3～5 | 58～85 | Do not have/do not have | Do not have/30 | By force/50 | 3～4 |
| Japan's aluminium oxide bentonite | The aluminium oxide bentonite | Solid | 7～8 | 300～2000 | 40～100 | 35～55 | Do not have/do not have | Do not have/10 | Weak/10 | 3 |
| Pollopas | Urea, formaldehyde, sodium chloride, ammonium chloride etc. | Liquid | 2～3 | 25～30 (liters) | 15～20 (liters) | 50～80 | +++/＋ | Poisonous/less than 10 years | By force/10 | 17.5 |
| Polyacrylamide | Acrylamide, clay sodium chloride, bleaching powder | Liquid | 4～6 | 25～30 (liters) | 15～20 (liters) | 50～80 | +++/＋ | Severe toxicity/less than 10 years | By force/10 | 25.6 |
Claims (1)
1, a kind of solid grounded resistance reducing agent relates to electric conducting material, and particularly a kind of inorganic-chemical solid reducer of ground resistance is characterized in that: its constituent, and the content of each composition by weight percentage scope be:
Alumina cement 0.01-40 sepiolite 20-90
Zeolite 2-28 graphite 2-10
Rare earth oxide 0.04-5 magnetic iron powder 1-5
Zinc powder 0.9-10 magnesium powder 0.05-3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90109011 CN1030872C (en) | 1990-11-17 | 1990-11-17 | Solid resistance-reducing agent for grounding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90109011 CN1030872C (en) | 1990-11-17 | 1990-11-17 | Solid resistance-reducing agent for grounding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1051817A CN1051817A (en) | 1991-05-29 |
| CN1030872C true CN1030872C (en) | 1996-01-31 |
Family
ID=4881243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90109011 Expired - Fee Related CN1030872C (en) | 1990-11-17 | 1990-11-17 | Solid resistance-reducing agent for grounding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1030872C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036623C (en) * | 1994-07-25 | 1997-12-03 | 江黎前 | Physical solid grounded resistance reducing agent |
| CN101552385B (en) * | 2009-05-13 | 2010-12-29 | 北京林业大学 | Graphite aluminum-magnesium alloy grounding material and preparing method thereof |
| CN104218334B (en) * | 2014-08-15 | 2016-06-08 | 东莞市华炜雷电防护设备有限公司 | A kind of reduce method and the grounded resistance reducing agent thereof that grounding body is corroded by grounded resistance reducing agent |
| CN108598730A (en) * | 2015-12-23 | 2018-09-28 | 长沙市雷立行电子科技有限公司 | It is sustained ionic grounding electrode |
| CN108376575B (en) * | 2018-02-07 | 2020-11-03 | 湖南中普技术股份有限公司 | Polymer resin resistance reducing agent and preparation and use methods thereof |
| CN112447310B (en) * | 2020-11-13 | 2022-06-14 | 广东电网有限责任公司 | Resistance reducing agent and preparation method and application thereof |
-
1990
- 1990-11-17 CN CN 90109011 patent/CN1030872C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1051817A (en) | 1991-05-29 |
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