CN1047006A - Particulate electrode paste and method for making thereof - Google Patents
Particulate electrode paste and method for making thereof Download PDFInfo
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- CN1047006A CN1047006A CN 90102334 CN90102334A CN1047006A CN 1047006 A CN1047006 A CN 1047006A CN 90102334 CN90102334 CN 90102334 CN 90102334 A CN90102334 A CN 90102334A CN 1047006 A CN1047006 A CN 1047006A
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Abstract
The present invention relates to a kind of particulate electrode paste and method for making thereof, it is under normal temperature condition solid asphalt and carbon material to be mixed and made into, and also can add plastic agent and/or oleic acid surfactant.Its Processes and apparatus is simple, produces and stablizes, and quality can reach the like product national standard.Applicable to the electrode paste of the continuously automatic roasting electrode of iron alloy electric furnace, yellow phosphorus electric furnace, furnace of calcium carbide and ore-smelting electric furnace, also can be used for the electrode casting mold of newly-built electric furnace.
Description
The present invention relates to the electrode paste of roasting electrode and the improvement of method for making thereof automatically continuously of iron alloy electric furnace, yellow phosphorus electric furnace, furnace of calcium carbide and ore-smelting electric furnace.
The production that traditional electrode is stuck with paste is the heat transfer source with steam, electricity or coal, molten asphalt tar, the calcined anthracite in the heating kneading machine and/or the mixture of metallurgical coke particle and tarvia, heating-up temperature is generally 120-140 ℃, and cooling curing moulding behind the stirring certain hour.Render in the electrode iron-clad of iron alloy electric furnace, yellow phosphorus electric furnace or furnace of calcium carbide and make self-baking electrode.Produce the kind electrode paste and not only expend a large amount of energy and man-hour, but also corresponding production auxiliary equipment will be arranged.It is big to be not only the maintenance of equipment amount, in case thermal source is broken off, certainly will stop production.
The purpose of this invention is to provide a kind of electrode paste and normal temperature production method thereof, can save a large amount of energy, man-hour and equipment.
The present invention realizes in the following manner: will account for the solid asphalt of the 14-32% of total weight, all the other are the granulated carbon cellulosic material, evenly mix under normal temperature condition, and the two general practical granularity is≤30mm.Carbon material comprises how grey carbon material, as metallurgical coke, anthracite etc.; Few grey carbon material is as petroleum coke, pitch coke, graphite etc.; Many ashes or few grey basic carbon material by obtaining behind many ashes or the few grey carbon material immersion electrolyte, have wherein infiltrated other material, as Al, Al2O3, NaF etc.; Can add wherein one or more.Pitch can be used coal tar pitch and/or petroleum asphalt, and is better with coal tar pitch.After do mixing, preferably add the 0.8-6.2%(weight ratio again) plastic agent and/or 0.2-3.3%(weight ratio) the oleic acid surfactant.Plastic agent is carbolineum, coal tar, washing oil, creasote, can add wherein one or more, it is the wet char cellulosic material well, and can reduce asphalt softening point and surface tension thereof, thereby has improved the suction-operated of carbon material particles of aggregates to binder pitch.Surfactant oleic acid (C17H33COOH) can further reduce the surperficial tension of pitch.When the pitch of powdery electrode in sticking with paste is heated, can soak into the carbon material particle well on electric furnace.Thereby further improved the mechanical strength of electrode paste.
Embodiment one: open wide (uncovered) formula iron alloy electric furnace and test and the result with the electrode lake:
1. fill a prescription: raw material granularity (mm) weight proportion (%)
Anthracite 8-0 52
Metallurgical coke 0.5-0 28
Coal tar pitch (93 ℃ of R.B softening points) 20
Carbolineum (adding) 1.4
Oleic acid (adding) 1.2
2. siccative granularity (mesh analysis) is formed:
Granularity (mm)+8-8～+ 4-4～+ 0.15-0.15
(%) 3.4 38.2 23 35 in siccative
3. mix the condition of pinching: 28 ℃ of room temperatures, with 25 liter kneading machines (driving shaft is 33 rev/mins, 19 rev/mins of driven axles), incorporation time 50 minutes.
4. sample roasting: 100 ℃ of programming rates/time, 12 hours time, 900 ℃ of maximum temperatures are incubated 3 hours.
5. sample testing result:
Ash content (%) fugitive constituent (%) bulk density compressive resistance resistivity
（g/cm
3） （Mpa） （Ωmm
2/M）
9.08 15.13 1.38 21.5 88.0
Embodiment two: airtight (with cover) formula iron alloy electric furnace (or furnace of calcium carbide) is tested and the result with electrode paste,
1. fill a prescription: raw material granularity (mm) weight proportion (%)
Anthracite 20-0 53
Petroleum coke 0.5-0 27
Graphite 0.5-0 2.5
Pitch (93 ℃ of RB softening points) 17.5
Carbolineum (adding) 3.5
Oleic acid (adding) 1.2
2. dry granular degree (mesh analysis composition):
Granularity (mm)＞20-20～+ 40-4～+ 0.15-0.15
(%) 4 39 21 36 in siccative
3. mix the condition of pinching: 28 ℃ of room temperatures; Kneading machine swept volume 25 liters; Mix and pinch 50 minutes time.
4. sample roasting: 100 ℃/h of programming rate, roasting time 12 hours, 900 ℃ of maximum temperatures are incubated 3 hours.
5. sample testing result:
Ash content (%) volatile matter (%) bulk density compressive resistance resistivity
（g/cm3） （Mpa） （Ωmm2/M）
5.71 15.53 1.38 16.8 68
Add above-mentioned two kinds of particulate electrode pastes in the electrode shell of electric furnace, its dust does not swing, segregation-free phenomenon during the binding agent fusing. This electrode paste quality has reached the national standard of like product. This electrode paste production system auxiliary equipment is few, save the energy, per 1000 tons of electrode paste fuel saving coal 350-380 tons, and the production cost is low, produces normally stable. Be suitable for the manufacturing of the continuous automatic-baking electrode paste of iron alloy electric furnace, yellow phosphorus electric furnace, furnace of calcium carbide and ore-smelting electric furnace etc.
Particulate electrode paste both had been applicable to the complementary goods of the electric furnace electrode consumption that is moving, and also was applicable to newly-built electric furnace electrode casting mold. Casting mold needs equally make electrode paste that certain plasticity be arranged the electrode paste heating, the compactness that contacts with electrode iron-clad (especially brasses place) with the overall integrity that ensures electrode and electrode paste.
Claims (7)
1, a kind of production method of electrode paste is characterized in that and will account for total weight 14-32%, the solid asphalt of granularity≤30mm, and surplus is the carbon material of granularity≤30mm, evenly mixes under normal temperature condition.
2, method according to claim 1 is characterized in that used pitch is coal tar pitch.
3, method according to claim 1 and 2 is characterized in that adding an amount of plasticity and/or oleic acid surfactant.
4, a kind of electrode paste that utilizes the described method of claim 1 to produce is characterized in that having the weight of accounting for 14-32% in the component, the solid asphalt of granularity≤30mm, and surplus is the carbon material of granularity≤30mm.
5, electrode paste according to claim 4 is characterized in that said pitch is coal tar pitch.
6,, it is characterized in that adding the plastic agent of 0.8-6.2% and/or the oleic acid surfactant of 0.2-3.3% according to claim 4 or 5 described electrode pastes.
7, electrode paste according to claim 6 is characterized in that plastic agent is a carbolineum, and coking oil, washing oil, creasote add wherein one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90102334 CN1047006A (en) | 1990-04-21 | 1990-04-21 | Particulate electrode paste and method for making thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90102334 CN1047006A (en) | 1990-04-21 | 1990-04-21 | Particulate electrode paste and method for making thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1047006A true CN1047006A (en) | 1990-11-14 |
Family
ID=4877466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90102334 Pending CN1047006A (en) | 1990-04-21 | 1990-04-21 | Particulate electrode paste and method for making thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1047006A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7005112B1 (en) | 1999-02-18 | 2006-02-28 | Kyowa Co., Ltd. | Thermal decomposer for waste |
| CN101608319B (en) * | 2008-06-16 | 2011-06-01 | 中国铝业股份有限公司 | Low-shrinkage cathode paste |
| US9131538B2 (en) | 2009-12-16 | 2015-09-08 | Italghisa S.P.A. | Electrode paste for electrodes in a graphite and/or anthracite with hydrocarbon base |
| WO2017167859A1 (en) * | 2016-03-31 | 2017-10-05 | Rheinfelden Carbon Gmbh & Co. Kg | Electrode material |
| CN107364866A (en) * | 2017-06-28 | 2017-11-21 | 大连华锐重工集团股份有限公司 | A kind of low-order coal prepares the method and compound binding agent of calcium carbide furnace charge |
| CN111414706A (en) * | 2020-03-31 | 2020-07-14 | 宁夏宁平炭素有限责任公司 | Method for calculating optimal resistivity and resistance heat of electrode paste in self-baking electrode baking process |
| CN111628146A (en) * | 2020-04-23 | 2020-09-04 | 湖南中科星城石墨有限公司 | Process for preparing lithium ion battery negative electrode material by filling microcrystalline graphite with asphalt |
-
1990
- 1990-04-21 CN CN 90102334 patent/CN1047006A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7005112B1 (en) | 1999-02-18 | 2006-02-28 | Kyowa Co., Ltd. | Thermal decomposer for waste |
| CN101608319B (en) * | 2008-06-16 | 2011-06-01 | 中国铝业股份有限公司 | Low-shrinkage cathode paste |
| US9131538B2 (en) | 2009-12-16 | 2015-09-08 | Italghisa S.P.A. | Electrode paste for electrodes in a graphite and/or anthracite with hydrocarbon base |
| US10560987B2 (en) | 2016-03-31 | 2020-02-11 | Rheinfelden Carbon Gmbh & Co. Kg | Electrode composition |
| CN109076657A (en) * | 2016-03-31 | 2018-12-21 | 莱茵费尔登碳业有限责任两合公司 | electrode material |
| WO2017167859A1 (en) * | 2016-03-31 | 2017-10-05 | Rheinfelden Carbon Gmbh & Co. Kg | Electrode material |
| CN109076657B (en) * | 2016-03-31 | 2020-11-27 | 莱茵费尔登碳业有限责任两合公司 | Electrode material |
| EA036783B1 (en) * | 2016-03-31 | 2020-12-21 | Райнфельден Карбон Гмбх Унд Ко. Кг | Electrode composition |
| EA036783B9 (en) * | 2016-03-31 | 2021-03-11 | Райнфельден Карбон Гмбх Унд Ко. Кг | Electrode composition |
| CN107364866A (en) * | 2017-06-28 | 2017-11-21 | 大连华锐重工集团股份有限公司 | A kind of low-order coal prepares the method and compound binding agent of calcium carbide furnace charge |
| CN111414706A (en) * | 2020-03-31 | 2020-07-14 | 宁夏宁平炭素有限责任公司 | Method for calculating optimal resistivity and resistance heat of electrode paste in self-baking electrode baking process |
| CN111414706B (en) * | 2020-03-31 | 2022-07-08 | 宁夏宁平炭素有限责任公司 | Calculation method for optimal resistivity and resistance heat of self-baking electrode baked strip electrode paste |
| CN111628146A (en) * | 2020-04-23 | 2020-09-04 | 湖南中科星城石墨有限公司 | Process for preparing lithium ion battery negative electrode material by filling microcrystalline graphite with asphalt |
| CN111628146B (en) * | 2020-04-23 | 2023-09-12 | 湖南中科星城石墨有限公司 | Process for preparing lithium ion battery anode material by filling microcrystalline graphite with asphalt |
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