CN2488920Y - Cathode block device - Google Patents
Cathode block device Download PDFInfo
- Publication number
- CN2488920Y CN2488920Y CN 01248238 CN01248238U CN2488920Y CN 2488920 Y CN2488920 Y CN 2488920Y CN 01248238 CN01248238 CN 01248238 CN 01248238 U CN01248238 U CN 01248238U CN 2488920 Y CN2488920 Y CN 2488920Y
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- cathode block
- cathode
- graphite
- density
- rod iron
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Abstract
The utility model relates to a cathode carbon block device, comprising a bottom basal body part of half graphite whose resistivity is 15 to 30 Ohm.m. Density is 1.45 to 1.70 g / cm <3>, and a middle layer, whose resistivity is 20 to 45 Ohm.m, the density is 1.45 to 1.70 g / cm <3>, and a top basal body part without anthracite after calcining, whose resistivity is 40 to 70 Ohm.m, the density is 1.45 to 1.65 g / cm <3>; and an electrode steel bar is inserted into the steel bar containing hole which is at the bottom of the bottom basal body. The utility model has the advantages of resisting the erosion of aluminium liquid and the etching of natrium, having a low steel char brush contact drop and hearth voltage drop, and extending the service time of the electrolyte tank.
Description
The utility model relates to the anti-aluminium corrosion of energy, reduces aluminium electrolytic cell cathode voltage, improves the cathode block device of bath life.Belong to the component technology in the nonferrous metallurgy electrolytic cell equipment, particularly the cathode structure of aluminium cell device.
The cathode block device of electrolytic aluminium factory aluminium cell is an integral part of cell construction, it is concerning Aluminium Electrolysis, be crucial, it directly has influence on the life-span of electrolyzer and the furnace bottom volts lost of electrolyzer, thereby can have influence on the power consumption of Aluminium Electrolysis.
The carbon piece negative electrode of the electrolyzer in the aluminum current electrolysis production has following several.
1. be the unformed carbonaceous carbon piece of main aggregate composition with the hard coal after the calcining.
2. being main aggregate composition with graphite and rubble China ink, is binding agent with pitch, after the moulding, through the carbon piece that roasting forms, is called semi-graphite carbon piece.
3. be main raw material (aggregate) with the after-smithing petroleum coke with the pitch kneading and compacting after, first roasting moulding is heat-treated to 2300～2500 ℃ and the carbon piece made is referred to as semi-graphited carbon piece then in graphite furnace.
4. be main raw material (aggregate) with the after-smithing petroleum coke with the pitch kneading and compacting after, first roasting moulding is heat-treated to 2700～3000 ℃ and the carbon piece made is referred to as the graphitized carbon piece then in graphite furnace.
Aluminium electrolytic cell cathode conduction rod iron is connected with two kinds with carbon piece negative electrode: a kind of is that cathode steel bar is placed in the dovetail-indent of cathode block, pours into a mould ferrophosphorus in dovetail-indent and cathode steel bar, makes negative electrode conduct electricity rod iron by ferrophosphorus and connects with cathode block.Another kind is to make firm by ramming with the carbon element ramming paste between negative electrode conduction rod iron and dovetail-indent.Make cathode block realize connecting by the ramming paste of making firm by ramming with the conduction rod iron.These two kinds of method and apparatus are all adopted by electrolytic aluminium factory at present.
The purpose of this utility model provide novel aluminium electrolysis cell cathode carbon block and with the conduction rod iron coupling unit.This device has anti-aluminium liquid and washes away abrasion, anti-sodium etch, contact drop of steel charcoal and furnace bottom loss of voltage, the advantage that can prolong bath life.
The utility model utilizes that cathode block top is hard, ultimate compression strength is high, wear resistance is good; The bottom is soft, resistance is low, anti-sodium erosion performance is good, and the advantage that touch voltage reduces between the rod iron, realizes that cathode block and negative electrode conduct electricity rod iron and be connected.
Make dovetail-indent in the bottom along the boring of carbon piece longitudinal direction or in the bottom, the cathode block that the hole, garden is arranged for the bottom, cathode steel bar can be inserted in this hole, realize the connection of electricity, slit between hole and the rod iron can be coated with sticking with the charcoal mud that Graphite Powder 99 and thermosetting resin are made, and also can be coated with sticking without this charcoal mud.In this case, the slit between rod iron and the carbon piece is very little, and rod iron temperature when the calcination caused rod iron that raises in this part very little slit expands and realizes and the combining closely of cathode block.Make the cathode block of dovetail-indent for the bottom, make firm by ramming or cast with plain paste of charcoal between rod iron and the dovetail-indent with the phosphorus pig iron.
The purpose of this utility model is achieved through the following technical measures.The cathode carbon pieces device comprises by resistivity in 15～30 Ω m, density at 1.45～1.70g/cm
3Bottom schungite body portion, resistivity is at 20～45 Ω m, density is at 1.45～1.70g/cm
3The middle layer, and resistivity 40～70 Ω m, density 1.45～1.65g/cm
3Calcining back, top anthracite-base body portion.The electrode rod iron then inserts the rod iron that is arranged on matrix bottom, bottom and takes in the hole.
Accompanying drawing is the structural representation of cathode block device provided by the utility model.Wherein Fig. 1 is the structural representation of the cathode block device of garden cylindricality cathode steel bar.Fig. 2 is the structural representation of the cathode block device of square column type cathode steel bar.
By most preferred embodiment the utility model technical characterictic is done further narration below in conjunction with accompanying drawing.
Embodiment one.As shown in Figure 1: cathode block 1, circular cathode rod iron 3, the top 6 of cathode block (major portion of its aggregate is a calcined anthracite), the bottom 4 of cathode block (being semi-graphite), cathode block is layer 5 (major ingredient of its aggregate is the mixture of calcined anthracite and graphite) excessively, when the slit 2 between cathode steel bar 3 and the carbon piece bottom schungite matrix 4 is connected between cathode block and cathode steel bar, rod iron is directly inserted taking in the hole of cathode block, bonding is stuck with paste with graphite in slit therebetween, also can.
Embodiment two, as shown in Figure 2: cathode block 1, square cathode steel bar 3, the top 6 of negative electrode carbon (main component of its aggregate is a calcined anthracite), the bottom 4 (semi-graphite) of cathode block, excessive layer 5, the major ingredient of its aggregate is the mixture of calcined anthracite and graphite, the weighting material between carbon piece bottom dovetail-indent and the square rod iron is plain ramming paste of charcoal or cast iron.
When negative electrode connects with the square cathode steel bar, earlier make dovetail-indent in the bottom of cathode block (semi-graphite), then cathode steel bar is inserted in the dovetail-indent, stick with paste tamping with charcoal is plain between dovetail-indent and the cathode steel bar, or with the phosphorus pig iron of casting.
Claims (3)
1. cathode block device is characterized in that the cathode carbon pieces device comprises by resistivity in 15～30 Ω m, density at 1.45～1.70g/cm
3Bottom schungite body portion, resistivity is at 20～45 Ω m, density is at 1.45～1.70g/cm
3The middle layer, and resistivity 40～70 Ω m, density 1.45～1.65g/cm
3Calcining back, top anthracite-base body portion, the electrode rod iron then inserts the rod iron that is arranged on matrix bottom, bottom and takes in the hole.
2. cathode block device according to claim 1, the bottom matrix 4 that it is characterized in that cathode block is semi-graphite, cathode block is layer 5 excessively, the major ingredient of its aggregate is the mixture of calcined anthracite and graphite, when being connected between cathode block and cathode steel bar, directly insert rod iron in the hole of cathode block bottom in slit 2 between cathode steel bar 3 and the carbon piece bottom schungite matrix 4, slit 2 usefulness graphite are stuck with paste bonding therebetween, also can.
3. cathode block device according to claim 1, the bottom 4 that it is characterized in that cathode block is semi-graphite, excessively the major ingredient of layer 5 its aggregate is the mixture of calcined anthracite and graphite, and the weighting material between carbon piece bottom dovetail-indent and the square rod iron is plain ramming paste of charcoal or cast iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01248238 CN2488920Y (en) | 2001-06-18 | 2001-06-18 | Cathode block device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01248238 CN2488920Y (en) | 2001-06-18 | 2001-06-18 | Cathode block device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2488920Y true CN2488920Y (en) | 2002-05-01 |
Family
ID=33658926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01248238 Expired - Fee Related CN2488920Y (en) | 2001-06-18 | 2001-06-18 | Cathode block device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2488920Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101296881B (en) * | 2005-10-28 | 2013-06-26 | 东洋炭素株式会社 | Graphite member for beam-line internal member of ion implantation apparatus |
-
2001
- 2001-06-18 CN CN 01248238 patent/CN2488920Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101296881B (en) * | 2005-10-28 | 2013-06-26 | 东洋炭素株式会社 | Graphite member for beam-line internal member of ion implantation apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |