CN108284505A - A kind of high graphite cathode carbon pieces production technology - Google Patents
A kind of high graphite cathode carbon pieces production technology Download PDFInfo
- Publication number
- CN108284505A CN108284505A CN201810028893.9A CN201810028893A CN108284505A CN 108284505 A CN108284505 A CN 108284505A CN 201810028893 A CN201810028893 A CN 201810028893A CN 108284505 A CN108284505 A CN 108284505A
- Authority
- CN
- China
- Prior art keywords
- batch mixing
- cathode carbon
- carbon pieces
- pitch
- production technology
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 25
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000005516 engineering process Methods 0.000 title claims abstract description 11
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 11
- 239000010439 graphite Substances 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 238000004898 kneading Methods 0.000 claims abstract description 17
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 14
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 238000001354 calcination Methods 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000002844 melting Methods 0.000 claims abstract description 4
- 230000008018 melting Effects 0.000 claims abstract description 4
- 238000010257 thawing Methods 0.000 claims abstract description 4
- 238000003801 milling Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/12—Anodes
- C25C3/125—Anodes based on carbon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The present invention relates to cathode carbon pieces technical field of producing, especially a kind of high graphite cathode carbon pieces production technology, including step 1：Sorting is crushed, step 2：The pitch for taking 150 200 parts by weight, is melted using heat-conducting oil furnace, obtains melting pitch, step 3：Batch mixing A is poured into kneading machine, starts kneading machine, is gradually mixed the pitch after thawing with batch mixing A, step 4：Carbon block batch mixing C is poured into vibrating forming machine mold, side vibrates, side batch turning, 1.3 1.5Mpa of atmospheric pressure, under vacuum environment, side vibration, side batch turning, step 5：Molding carbon block is subjected to high-temperature roasting, 1,250 1400 DEG C of calcination temperature, step 6：It is machined after cooling.Cathode carbon pieces resistivity produced by the invention is low, thermal conductivity is high, real density, bulk density is big, the porosity is low, improves service life, saves cost, meets the use of electrolytic cell.
Description
Technical field
The present invention relates to cathode carbon pieces technical field of producing more particularly to a kind of high graphite cathode carbon pieces to produce work
Skill.
Background technology
Cathode carbon pieces are used as the cathode of aluminium cell, it builds by laying bricks or stones is also known as bottom carbon block in bottom of electrolytic tank.Characteristic cathode charcoal
Block plays conductive and composition cell lining double action.
Current plant-manufactured cathode carbon pieces thermal conductivity is not high, and density is small, and mechanical strength is low, and the porosity is big, cannot meet
Condition when electrolytic cell, service life is very low, causes the waste of resource.
Invention content
The purpose of the present invention is to solve the bad disadvantages of cathode carbon pieces using effect in the prior art, and one proposed
Kind high graphite cathode carbon pieces production technology.
To achieve the goals above, present invention employs following technical solutions：
A kind of high graphite cathode carbon pieces production technology, includes the following steps：
Step 1：It selects 100-120 parts by weight electro-forge coals to be crushed to 3-6mm, selects 90-100 parts by weight artificial graphites mill
Powder makes granularity control in 0.3-0.5mm, the two is carried out dry-mixed, obtains batch mixing A；
Step 2：The pitch for taking 150-200 parts by weight, is melted using heat-conducting oil furnace, obtains melting pitch；
Step 3：Batch mixing A is poured into kneading machine, starts kneading machine, gradually mixes the pitch after thawing with batch mixing A,
Working environment：Under vacuum environment, atmospheric pressure 1.35-1.45Mpa, 120-140 DEG C of temperature, it is mixed that kneading obtains carbon block afterwards for a period of time
Expect C；By such technique, the density of batch mixing is greatly improved, viscosity ensures the progress of subsequent technique；
Step 4：Carbon block batch mixing C is poured into vibrating forming machine mold, side vibration, side batch turning, atmospheric pressure 1.3-
1.5Mpa, under vacuum environment, side vibration, side batch turning makes material condense more solid, ensures density, reduces the porosity；
Step 5：Molding carbon block is subjected to high-temperature roasting, 1250-1400 DEG C of calcination temperature；
Step 6：It is machined after cooling, obtains the cathode carbon pieces of required shape.
Preferably, motor often rotates 2 minutes in step 3 kneading process, need to rest 2 minutes, using intermittent kneading, supplies
It takes time 60-80 minutes, by such technique, material is made to be sufficiently mixed, further increase material density, reduce the porosity.
Preferably, step 4 mold vibration is using four bit cycles vibrations all around, and the oil spout in vibration is effectively anti-
The only viscous glutinous mold of material, ensures carbon block integrality after molding, uniformity.
A kind of high graphite cathode carbon pieces production technology proposed by the present invention, advantageous effect are：The moon of this technique productions
Pole carbon block resistivity is low, thermal conductivity is high, real density, bulk density is big, the porosity is low, improves service life, saves cost, meets
The use of electrolytic cell.
Specific implementation mode
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.
A kind of high graphite cathode carbon pieces production technology, includes the following steps：
Step 1：It selects 100-120 parts by weight electro-forge coals to be crushed to 3-6mm, selects 90-100 parts by weight artificial graphites mill
Powder makes granularity control in 0.3-0.5mm, the two is carried out dry-mixed, obtains batch mixing A；
Step 2：The pitch for taking 150-200 parts by weight, is melted using heat-conducting oil furnace, obtains melting pitch；
Step 3：Batch mixing A is poured into kneading machine, starts kneading machine, gradually mixes the pitch after thawing with batch mixing A,
Working environment：Under vacuum environment, atmospheric pressure 1.35-1.45Mpa, 120-140 DEG C of temperature, it is mixed that kneading obtains carbon block afterwards for a period of time
Expect C；Motor often rotates 2 minutes in kneading process, need to rest 2 minutes, is led to for taking time 60-80 minutes using intermittent kneading
Such technique is crossed, material is made to be sufficiently mixed, further increases material density, the porosity is reduced and is greatly carried by such technique
The high density of batch mixing, viscosity ensure the progress of subsequent technique.
Step 4：Carbon block batch mixing C is poured into vibrating forming machine mold, side vibration, side batch turning, atmospheric pressure 1.3-
1.5Mpa, under vacuum environment, side vibration, side batch turning makes material condense more solid, ensures density, reduces the porosity.
Step 5：Molding carbon block is subjected to high-temperature roasting, 1250-1400 DEG C of calcination temperature；
Step 6：It is machined after cooling, obtains the cathode carbon pieces of required shape.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (3)
1. a kind of high graphite cathode carbon pieces production technology, which is characterized in that include the following steps：
Step 1：It selects 100-120 parts by weight electro-forge coals to be crushed to 3-6mm, selects 90-100 parts by weight artificial graphites milling, make
Granularity control carries out the two dry-mixed in 0.3-0.5mm, obtains batch mixing A；
Step 2：The pitch for taking 150-200 parts by weight, is melted using heat-conducting oil furnace, obtains melting pitch；
Step 3：Batch mixing A is poured into kneading machine, starts kneading machine, gradually mixes the pitch after thawing with batch mixing A, is worked
Environment：Under vacuum environment, atmospheric pressure 1.35-1.45Mpa, 120-140 DEG C of temperature, kneading obtains carbon block batch mixing C afterwards for a period of time；
Step 4：Carbon block batch mixing C is poured into vibrating forming machine mold, side vibrates, side batch turning, atmospheric pressure 1.3-1.5Mpa, very
Under Altitude；
Step 5：Molding carbon block is subjected to high-temperature roasting, 1250-1400 DEG C of calcination temperature；
Step 6：It is machined after cooling, obtains the cathode carbon pieces of required shape.
2. a kind of high graphite cathode carbon pieces production technology according to claim 1, which is characterized in that step 3 kneading mistake
Motor often rotates 2 minutes in journey, need to rest 2 minutes, using intermittent kneading, for taking time 60-80 minutes.
3. a kind of high graphite cathode carbon pieces production technology according to claim 1, which is characterized in that step 4 mold shakes
It is dynamic to be vibrated using four bit cycles all around, the oil spout in vibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810028893.9A CN108284505A (en) | 2018-01-12 | 2018-01-12 | A kind of high graphite cathode carbon pieces production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810028893.9A CN108284505A (en) | 2018-01-12 | 2018-01-12 | A kind of high graphite cathode carbon pieces production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108284505A true CN108284505A (en) | 2018-07-17 |
Family
ID=62835153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810028893.9A Pending CN108284505A (en) | 2018-01-12 | 2018-01-12 | A kind of high graphite cathode carbon pieces production technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108284505A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1480562A (en) * | 2003-08-04 | 2004-03-10 | 青铜峡市青鑫炭素有限责任公司 | High graphite cathode carbon block and its producing method |
| CN1594662A (en) * | 2004-07-02 | 2005-03-16 | 贵阳铝镁设计研究院 | Production process for graphitized cathode |
| CN101949034A (en) * | 2010-09-30 | 2011-01-19 | 广西强强碳素股份有限公司 | Cathode graphitizing current stop block for aluminum electrolysis |
| WO2011014916A1 (en) * | 2009-08-04 | 2011-02-10 | Commonwealth Scientific And Industrial Research Organisation | A process for producing a carbonaceous product from biomass |
| CN103864048A (en) * | 2014-01-26 | 2014-06-18 | 宁夏永威炭业有限责任公司 | Method for preparing large high-power carbon electrode by using semi-graphitized anthracite |
| CN106376121A (en) * | 2016-08-26 | 2017-02-01 | 河北顺天电极有限公司 | High-graphite carbon electrode and preparation method thereof |
-
2018
- 2018-01-12 CN CN201810028893.9A patent/CN108284505A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1480562A (en) * | 2003-08-04 | 2004-03-10 | 青铜峡市青鑫炭素有限责任公司 | High graphite cathode carbon block and its producing method |
| CN1594662A (en) * | 2004-07-02 | 2005-03-16 | 贵阳铝镁设计研究院 | Production process for graphitized cathode |
| WO2011014916A1 (en) * | 2009-08-04 | 2011-02-10 | Commonwealth Scientific And Industrial Research Organisation | A process for producing a carbonaceous product from biomass |
| CN101949034A (en) * | 2010-09-30 | 2011-01-19 | 广西强强碳素股份有限公司 | Cathode graphitizing current stop block for aluminum electrolysis |
| CN103864048A (en) * | 2014-01-26 | 2014-06-18 | 宁夏永威炭业有限责任公司 | Method for preparing large high-power carbon electrode by using semi-graphitized anthracite |
| CN106376121A (en) * | 2016-08-26 | 2017-02-01 | 河北顺天电极有限公司 | High-graphite carbon electrode and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180717 |