WO2011047516A1 - Grooved anode structure corresponding to irregular cathode in aluminum electrolytic cell, aluminum electrolytic cell and baking method therefor - Google Patents
Grooved anode structure corresponding to irregular cathode in aluminum electrolytic cell, aluminum electrolytic cell and baking method therefor Download PDFInfo
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- WO2011047516A1 WO2011047516A1 PCT/CN2009/075927 CN2009075927W WO2011047516A1 WO 2011047516 A1 WO2011047516 A1 WO 2011047516A1 CN 2009075927 W CN2009075927 W CN 2009075927W WO 2011047516 A1 WO2011047516 A1 WO 2011047516A1
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- aluminum electrolytic
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- 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
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- 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
Definitions
- the invention belongs to the field of aluminum electrolysis, and particularly relates to an open anode structure, an aluminum electrolysis cell and a roasting method for an aluminum electrolysis shaped cathode electrolysis cell. Background technique
- the industrial hetero-cathode aluminum electrolysis cell roasting method is very important.
- the conventional hetero-cathode electrolysis cell roasting is made of aluminum liquid roasting, gas roasting and coke roasting.
- the aluminum liquid roasting is first poured into the electrolysis tank higher than the cathode boss 7 ⁇ 8cm of aluminum liquid, and then electrified to roast, the aluminum liquid easily penetrates into the shrinkage joint created by the artificial leg and the sewed seam, causing the electrolytic tank to aluminate and stop the tank; gas roasting needs to purchase a special roasting device, which is expensive, and the technology is still Not very mature;
- Shaped cathode coke roasting because the slotted anode is not used, the amount of coke deposited is very large (about 3 tons), and the amount of carbon residue is greatly increased during the start-up process, so that the carbon residue is at the anode bottom.
- the possibility of forming a cinder cake is significantly increased. Summary of the invention
- One of the objects of the present invention is to provide an aluminum electrolysis shaped cathode electrolyzer capable of overcoming the problem of aluminizing stoppage of the electrolytic cell caused by the infiltration of aluminum liquid into the shrinkage joint formed by the artificial stretching leg and the staking seam existing in the prior art. Slotted anode structure, aluminum electrolytic cell and baking method.
- a slotted anode structure for an aluminum electrolytic profiled cathode electrolytic cell which may include: a groove is formed in the anode, and a cathode boss of the shaped cathode is embedded in the groove of the slotted anode, at the cathode boss There is graphite powder on it, and there are coke particles on the cathode surface between the cathode bosses.
- an aluminum electrolytic cell which may include an aluminum electrolytic profiled cathode electrolytic cell slotted anode structure, and the aluminum electrolytic shaped cathode electrolytic cell slotted anode structure may include a groove formed on the anode.
- the cathode boss of the shaped cathode is embedded in the groove of the slotted anode, graphite powder is present on the cathode boss, and coke particles are present on the cathode surface between the cathode bosses.
- a method for roasting an anode structure of an aluminum electrolytic shaped cathode electrolysis cell can be provided, which can include:
- the graphite powder is laid to a thickness of 5 to 30 mm.
- the graphite powder may be laid to a thickness of 10 mm.
- the coke particles are laid to a thickness of 5-30 mm.
- the coke particles may be laid to a thickness of 30 mm.
- the problem of aluminizing the groove of the electrolytic cell caused by the infiltration of the aluminum liquid into the shrinkage slit formed by the artificial leg and the staking seam in the firing is solved.
- FIG. 1 is a schematic view showing a structure of a slotted anode and a cathode of a shaped cathode electrolytic cell according to an embodiment of the present invention, that is, a schematic diagram of a contact between an anode and a cathode;
- FIG. 2 is a schematic view showing a slotted anode structure with two slots according to an embodiment of the present invention, that is, a schematic diagram of a slot position of a cathode corresponding to different anodes; the dimensions of the slots are 8 ⁇ 8 (cm), 8 ⁇ 19 (cm), respectively;
- FIG. 3 is a schematic view showing a structure of a slotted anode having two slots, which is a schematic view of a slotted position of a cathode corresponding to different anodes, wherein the dimensions of the slots are 8 ⁇ 17 (cm), 8 ⁇ 16 (cm), respectively;
- FIG. 4 is a schematic view showing a slotted anode structure according to an embodiment of the present invention, that is, a schematic view of a slotted position of a cathode corresponding to different anodes, wherein the slot has a size of 8 ⁇ 19 (cm);
- FIG. 5 is provided according to an embodiment of the present invention.
- the schematic diagram of the slotted anode structure is opened, that is, the cathode corresponds to the slot position of different anodes, wherein the slot has a size of 8 x 19 (cm);
- FIG. 6 is a slotted slot provided by the embodiment of the present invention.
- Schematic diagram of the anode structure that is, a schematic diagram of the slot position of the cathode corresponding to different anodes, wherein the dimensions of the slots are 8x7 (cm), 8x 19 (cm), respectively;
- FIG. 7 is a schematic view showing a structure of a slotted anode having two slots, which is a schematic diagram of a slot position of a cathode corresponding to different anodes, wherein the slot size is 8 ⁇ 20, respectively. ( cm ), 8x 13 ( cm );
- FIG. 8 is a schematic view showing a slotted anode structure according to an embodiment of the present invention, that is, a schematic view of a slotted position of a cathode corresponding to different anodes, wherein the slot has a size of 8 ⁇ 19 (cm);
- FIG. 9 is provided according to an embodiment of the present invention. A schematic diagram of the flow of a method of being burned. detailed description
- an embodiment of the present invention provides a slotted anode structure for an aluminum electrolytic shaped cathode electrolytic cell, comprising a groove 6 formed on the anode 1 and a cathode boss 2 of the shaped cathode 5 embedded in the slotted anode 1
- graphite powder 3 is present on the cathode boss 2
- coke particles 4 are present on the cathode surface between the cathode bosses 2.
- the thickness of the graphite powder is 5-30 mm, for example, the thickness of the graphite powder may be selected to be 10 mm.
- the thickness of the coke particles is 5-30 mm, for example, the thickness of the coke particles can be selected to be 30 mm.
- a profiled cathode calcination structure using a slotted anode is used, that is, a slotted anode 1 is used, and the cathode boss 2 is just embedded in the groove 6 opened by the anode 1, which creates conditions for the use of coke roasting.
- a 10 mm thick graphite powder 3 is placed on the cathode boss, so that the thickness of the coke 4 is 30 mm, which ensures that the anode 1 is in good contact with the shaped cathode 5.
- Embodiments of the present invention also provide an aluminum electrolytic cell comprising the slotted anode structure of the aluminum electrolytic profiled cathode electrolytic cell shown in FIG.
- An embodiment of the present invention takes a 200KA electrolytic cell as an example (28 sets of slotted anodes), including the following:
- the position and size of the slotted anode are determined. Since the cathode and the anode are not corresponding to each other, the slotted portions of the anodes at different positions are different, but the electrolytic cells have symmetry. Symmetrical position The anode is slotted in the same position and size.
- the 200KA electrolytic cell has 28 sets of anodes. Considering its symmetry, 7 sets of different slotted anodes are required (see Figures 2 to 8).
- an embodiment of the present invention further provides a roasting method using a slotted anode structure of an aluminum electrolysis shaped cathode electrolysis cell, comprising:
- Step S1 divided into two cases: 1. For the slotted anode 1 which has been opened, the depth of the groove 6 of the slotted anode 1 is measured, and if the error is small (within 0.5 cm), the coke may be laid normally; If the error is large, the thickness of the coke particles should be adjusted. 2. For the slotted anode 1 that has not been grooved: Determine the slot depth of the slotted anode according to the thickness of the coke to be laid. Degree.
- Step S2 depositing coke particles 4 on the surface of the cathode 5 between the cathode bosses 2; laying the coke particles 4 to a thickness of 5 -30 mm, for example: 3 ⁇ 4 ports, 30 mm.
- Step S3 laying graphite powder 3 on the cathode boss 2, and laying the graphite powder 3 to have a thickness of 5 -30 mm, for example, 10 mm.
- Step S4 after each of the cathodes corresponds to the coke particles 4 and the graphite powder 3 at the position of the slotted anode, a slotted anode 1 is hung;
- Step S5 checking whether the slotted anode and the cathode are in good contact, if the contact is not good, the method of processing the coke particles to the bottom of the slotted anode is processed, or steps S1 to S4 are repeated to re-adjust the thickness of the coke particles, and then Pour a cathode of coke particles and graphite powder, and then hang all the anodes in turn.
- step S6 calcination is carried out, and the calcination method is the same as the conventional ordinary coke roasting technique, and will not be described again.
- the slotted anode structure, the electrolytic cell and the roasting method of the aluminum electrolysis shaped cathode electrolysis cell provided by the embodiment of the invention overcome the easy penetration of the aluminum liquid into the shrinkage joint generated by the artificial leg and the staking seam, thereby causing the electrolytic tank to aluminate the slot Risks;
- the purchase of special equipment for gas roasting is greatly reduced, and the cost is reduced, and the safety hazard is reduced (because the electrolysis plant does not have a gas pipeline installed, it requires a large construction cost, such as re-installation, ⁇ Filling with gas will bring great safety hazards in the high temperature environment of the electrolysis plant.
- the amount of coke particles laid by ordinary coke roasting is large (about 2 to 3 tons), and the amount of charcoal slag is large during the startup process, and the carbon residue forms carbon in the anode bottom.
- the possibility of slag cake is significantly increased, which brings great harm to the later management of the electrolytic cell, and the hetero-cathode-grooving coke granule roasting method can solve the problems in the above-mentioned roasting method, and is simple and practical, and is convenient to operate. , and the baking effect is very good, which has a great effect on extending the life of the tank.
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Abstract
A grooved anode structure corresponding to an irregular cathode in an aluminum electrolytic cell is disclosed, wherein, grooves are cut on the anode, bulges of the irregular cathode are embedded into the grooves cut on the anode; powdered carbon is lain on the cathode bulges and coke particles are lain on the cathode surface between the cathode bulges. An aluminum electrolytic cell is also disclosed, which includes the above-said grooved anode structure corresponding to the irregular cathode in an aluminum electrolytic cell. A baking method for the grooved anode structure corresponding to the irregular cathode in an aluminum electrolytic cell is also disclosed, which includes laying coke particles on the cathode surface between the cathode bulges; laying powdered carbon on the cathode bulges; suspending the anodes and baking. The present invention can solve the problem that an electrolytic cell may be closed down when the liquid aluminum penetrates into the shrinkage gap formed between the ledge and the lateral seam.
Description
铝电解异型阴极电解槽开槽 Aluminum electrolysis shaped cathode electrolysis cell slotting
阳极结构、 铝电解槽及焙烧方法 技术领域 Anode structure, aluminum electrolytic cell and roasting method
本发明属于铝电解领域，具体涉及一种铝电解异型阴极电解槽开 槽阳极结构、 铝电解槽及焙烧方法。 背景技术 The invention belongs to the field of aluminum electrolysis, and particularly relates to an open anode structure, an aluminum electrolysis cell and a roasting method for an aluminum electrolysis shaped cathode electrolysis cell. Background technique
工业异型阴极铝电解槽焙烧方法非常重要，传统异型阴极电解槽 焙烧釆用铝液焙烧、燃气焙烧和焦粒焙烧三种， 铝液焙烧是在电解槽 内先灌进高于阴极凸台 7 ~ 8cm的铝液， 然后通电焙烧， 铝液容易渗 进人造伸腿和扎固缝产生的收缩缝中， 造成电解槽渗铝停槽； 燃气焙 烧需要购买一套专用焙烧装置， 费用昂贵， 并且技术还不很成熟； 异 型阴极焦粒焙烧， 由于没有使用开槽阳极， 铺设的焦粒量很大（约 3 吨）， 并且启动过程中炭渣的打捞工作量很大， 使得炭渣在阳极底掌 形成炭渣饼的可能性显著增大。 发明内容 The industrial hetero-cathode aluminum electrolysis cell roasting method is very important. The conventional hetero-cathode electrolysis cell roasting is made of aluminum liquid roasting, gas roasting and coke roasting. The aluminum liquid roasting is first poured into the electrolysis tank higher than the cathode boss 7 ~ 8cm of aluminum liquid, and then electrified to roast, the aluminum liquid easily penetrates into the shrinkage joint created by the artificial leg and the sewed seam, causing the electrolytic tank to aluminate and stop the tank; gas roasting needs to purchase a special roasting device, which is expensive, and the technology is still Not very mature; Shaped cathode coke roasting, because the slotted anode is not used, the amount of coke deposited is very large (about 3 tons), and the amount of carbon residue is greatly increased during the start-up process, so that the carbon residue is at the anode bottom. The possibility of forming a cinder cake is significantly increased. Summary of the invention
本发明的目的之一是提供一种能克服现有技术存在的由于铝液 渗进人造伸腿和扎固缝产生的收缩缝中而造成的电解槽渗铝停槽问 题的铝电解异型阴极电解槽开槽阳极结构、 铝电解槽及焙烧方法。 One of the objects of the present invention is to provide an aluminum electrolysis shaped cathode electrolyzer capable of overcoming the problem of aluminizing stoppage of the electrolytic cell caused by the infiltration of aluminum liquid into the shrinkage joint formed by the artificial stretching leg and the staking seam existing in the prior art. Slotted anode structure, aluminum electrolytic cell and baking method.
根据本发明的一个方面，提供一种铝电解异型阴极电解槽开槽阳 极结构， 可包括： 在阳极上开有槽， 异型阴极的阴极凸台嵌在开槽阳 极的槽中， 在阴极凸台上有石墨粉， 在阴极凸台之间的阴极表面有焦 粒。 According to an aspect of the present invention, a slotted anode structure for an aluminum electrolytic profiled cathode electrolytic cell is provided, which may include: a groove is formed in the anode, and a cathode boss of the shaped cathode is embedded in the groove of the slotted anode, at the cathode boss There is graphite powder on it, and there are coke particles on the cathode surface between the cathode bosses.
根据本发明的另一个方面，提供一种铝电解槽， 可包括铝电解异 型阴极电解槽开槽阳极结构，所述铝电解异型阴极电解槽开槽阳极结 构， 可包括在阳极上开有槽， 异型阴极的阴极凸台嵌在开槽阳极的槽 中， 在阴极凸台上有石墨粉， 在阴极凸台之间的阴极表面有焦粒 According to another aspect of the present invention, an aluminum electrolytic cell is provided, which may include an aluminum electrolytic profiled cathode electrolytic cell slotted anode structure, and the aluminum electrolytic shaped cathode electrolytic cell slotted anode structure may include a groove formed on the anode. The cathode boss of the shaped cathode is embedded in the groove of the slotted anode, graphite powder is present on the cathode boss, and coke particles are present on the cathode surface between the cathode bosses.
根据本发明的另一个方面，提供一种铝电解异型阴极电解槽开槽 阳极结构的焙烧方法， 可包括： According to another aspect of the present invention, a method for roasting an anode structure of an aluminum electrolytic shaped cathode electrolysis cell can be provided, which can include:
在阴极凸台之间的阴极表面铺上焦粒；
在所述阴极凸台上铺设石墨粉； Coorating the surface of the cathode between the cathode bosses; Laying graphite powder on the cathode boss;
挂阳极； Hanging anode
进行焙烧。 Calcination is carried out.
所述石墨粉的铺设厚度为 5-30mm。 The graphite powder is laid to a thickness of 5 to 30 mm.
所述石墨粉的铺设厚度可为 10mm。 The graphite powder may be laid to a thickness of 10 mm.
所述焦粒的铺设厚度为 5-30mm。 The coke particles are laid to a thickness of 5-30 mm.
所述焦粒的铺设厚度可为 30mm。 The coke particles may be laid to a thickness of 30 mm.
根据本发明，解决了在焙烧中由于铝液渗进人造伸腿和扎固缝产 生的收缩缝中而造成电解槽渗铝停槽的问题。 附图说明 According to the present invention, the problem of aluminizing the groove of the electrolytic cell caused by the infiltration of the aluminum liquid into the shrinkage slit formed by the artificial leg and the staking seam in the firing is solved. DRAWINGS
图 1 为本发明实施例提供的异型阴极电解槽开槽阳极与阴极结 构示意图， 即阳极与阴极之间接触方式示意图； 1 is a schematic view showing a structure of a slotted anode and a cathode of a shaped cathode electrolytic cell according to an embodiment of the present invention, that is, a schematic diagram of a contact between an anode and a cathode;
图 2为本发明实施例提供的开有 2个槽的开槽阳极结构示意图， 即阴极对应不同阳极的开槽位置示意图； 槽的尺寸分别为 8x8 ( cm ), 8x 19 ( cm ); 2 is a schematic view showing a slotted anode structure with two slots according to an embodiment of the present invention, that is, a schematic diagram of a slot position of a cathode corresponding to different anodes; the dimensions of the slots are 8×8 (cm), 8×19 (cm), respectively;
图 3为本发明实施例提供的开有 2个槽开槽阳极结构示意图，即 阴极对应不同阳极的开槽位置示意图， 其中槽的尺寸分别为 8x 17 ( cm ), 8x 16 ( cm ); 3 is a schematic view showing a structure of a slotted anode having two slots, which is a schematic view of a slotted position of a cathode corresponding to different anodes, wherein the dimensions of the slots are 8×17 (cm), 8×16 (cm), respectively;
图 4为本发明实施例提供的开有 1个槽开槽阳极结构示意图，即 阴极对应不同阳极的开槽位置示意图， 其中槽的尺寸为 8x 19 ( cm ); 图 5为本发明实施例提供的开有 1个槽开槽阳极结构示意图，即 阴极对应不同阳极的开槽位置示意图， 其中槽的尺寸为 8x 19 ( cm ); 图 6为本发明实施例提供的开有 2个槽开槽阳极结构示意图，即 阴极对应不同阳极的开槽位置示意图， 其中槽的尺寸分别为 8x7 ( cm ), 8x 19 ( cm ); 4 is a schematic view showing a slotted anode structure according to an embodiment of the present invention, that is, a schematic view of a slotted position of a cathode corresponding to different anodes, wherein the slot has a size of 8×19 (cm); FIG. 5 is provided according to an embodiment of the present invention. The schematic diagram of the slotted anode structure is opened, that is, the cathode corresponds to the slot position of different anodes, wherein the slot has a size of 8 x 19 (cm); FIG. 6 is a slotted slot provided by the embodiment of the present invention. Schematic diagram of the anode structure, that is, a schematic diagram of the slot position of the cathode corresponding to different anodes, wherein the dimensions of the slots are 8x7 (cm), 8x 19 (cm), respectively;
图 7为本发明实施例提供的开有 2个槽开槽阳极结构示意图，即 阴极对应不同阳极的开槽位置示意图， 其中槽的尺寸分别为 8x20
( cm ), 8x 13 ( cm ); FIG. 7 is a schematic view showing a structure of a slotted anode having two slots, which is a schematic diagram of a slot position of a cathode corresponding to different anodes, wherein the slot size is 8×20, respectively. ( cm ), 8x 13 ( cm );
图 8为本发明实施例提供的开有 1个槽开槽阳极结构示意图，即 阴极对应不同阳极的开槽位置示意图， 其中槽的尺寸为 8x 19 ( cm ); 图 9为本发明实施例提供的一种被烧方法的流程示意图。 具体实施方式 FIG. 8 is a schematic view showing a slotted anode structure according to an embodiment of the present invention, that is, a schematic view of a slotted position of a cathode corresponding to different anodes, wherein the slot has a size of 8×19 (cm); FIG. 9 is provided according to an embodiment of the present invention. A schematic diagram of the flow of a method of being burned. detailed description
如图 1所示，本发明实施例提供的一种铝电解异型阴极电解槽开 槽阳极结构， 包括在阳极 1上开有槽 6, 异型阴极 5的阴极凸台 2嵌 在开槽阳极 1的槽 6中， 在阴极凸台 2上有石墨粉 3 , 在阴极凸台 2 之间的阴极表面有焦粒 4。 其中， 石墨粉的厚度为 5-30mm, 例如， 石墨粉的厚度可选择为 10mm。 焦粒的厚度为 5-30mm, 例如， 焦粒 的厚度可选择为 30mm。 As shown in FIG. 1 , an embodiment of the present invention provides a slotted anode structure for an aluminum electrolytic shaped cathode electrolytic cell, comprising a groove 6 formed on the anode 1 and a cathode boss 2 of the shaped cathode 5 embedded in the slotted anode 1 In the tank 6, graphite powder 3 is present on the cathode boss 2, and coke particles 4 are present on the cathode surface between the cathode bosses 2. Among them, the thickness of the graphite powder is 5-30 mm, for example, the thickness of the graphite powder may be selected to be 10 mm. The thickness of the coke particles is 5-30 mm, for example, the thickness of the coke particles can be selected to be 30 mm.
该结构中使用了开槽阳极的异型阴极焙烧结构，即使用开槽阳极 1 , 阴极凸台 2正好嵌在阳极 1开的槽 6中， 这为使用焦粒焙烧创造 了条件。 为保证阳极 1 与阴极凸台 2柔性接触， 在阴极凸台上铺设 10mm厚的石墨粉 3 , 这样焦粒 4的厚度为 30mm, 这样可以保证阳 极 1与异型阴极 5很好地接触。 In this structure, a profiled cathode calcination structure using a slotted anode is used, that is, a slotted anode 1 is used, and the cathode boss 2 is just embedded in the groove 6 opened by the anode 1, which creates conditions for the use of coke roasting. In order to ensure that the anode 1 is in flexible contact with the cathode boss 2, a 10 mm thick graphite powder 3 is placed on the cathode boss, so that the thickness of the coke 4 is 30 mm, which ensures that the anode 1 is in good contact with the shaped cathode 5.
本发明实施例还提供一种铝电解槽，包括图 1所示的铝电解异型 阴极电解槽开槽阳极结构。 Embodiments of the present invention also provide an aluminum electrolytic cell comprising the slotted anode structure of the aluminum electrolytic profiled cathode electrolytic cell shown in FIG.
本发明的实施例以 200KA电解槽为例 （28组开槽阳极）， 包括 以下内容： An embodiment of the present invention takes a 200KA electrolytic cell as an example (28 sets of slotted anodes), including the following:
使用阳极开槽技术： 根据异型阴极尺寸， 确定开槽阳极的位置和 尺寸， 由于阴极与阳极之间不是——对应关系， 因此不同位置阳极的 开槽部位不一样，但电解槽具有对称性， 对称位置阳极开槽位置和尺 寸一样， 200KA电解槽 28组阳极， 考虑其对称性， 需要 7组不同开 槽阳极（见图 2〜图 8所示）。 Using the anode slotting technology: According to the size of the shaped cathode, the position and size of the slotted anode are determined. Since the cathode and the anode are not corresponding to each other, the slotted portions of the anodes at different positions are different, but the electrolytic cells have symmetry. Symmetrical position The anode is slotted in the same position and size. The 200KA electrolytic cell has 28 sets of anodes. Considering its symmetry, 7 sets of different slotted anodes are required (see Figures 2 to 8).
如图 9所示， 本发明实施例还提供一种使用铝电解异型阴极电 解槽开槽阳极结构的焙烧方法， 包括： As shown in FIG. 9, an embodiment of the present invention further provides a roasting method using a slotted anode structure of an aluminum electrolysis shaped cathode electrolysis cell, comprising:
步骤 Sl、 分两种情况： 1、 针对已经开好槽的开槽阳极 1 : 测量 开槽阳极 1的槽 6的深度， 如误差较小 （在 0.5cm以内）， 可以按照 正常铺设焦粒； 如误差较大， 应调整焦粒的铺设厚度。 2、 针对还没 开槽的开槽阳极 1 : 根据要铺设的焦粒厚度， 确定开槽阳极的开槽深
度。 Step S1, divided into two cases: 1. For the slotted anode 1 which has been opened, the depth of the groove 6 of the slotted anode 1 is measured, and if the error is small (within 0.5 cm), the coke may be laid normally; If the error is large, the thickness of the coke particles should be adjusted. 2. For the slotted anode 1 that has not been grooved: Determine the slot depth of the slotted anode according to the thickness of the coke to be laid. Degree.
步骤 S2、在阴极凸台 2之间的阴极 5表面铺上焦粒 4; 铺设焦粒 4的厚度为 5 -30mm, 例: ¾口， 30mm。 Step S2, depositing coke particles 4 on the surface of the cathode 5 between the cathode bosses 2; laying the coke particles 4 to a thickness of 5 -30 mm, for example: 3⁄4 ports, 30 mm.
步骤 S3、在阴极凸台 2上的铺设石墨粉 3 ,铺设石墨粉 3的厚度 为 5 -30mm, 例如, 10mm。 Step S3, laying graphite powder 3 on the cathode boss 2, and laying the graphite powder 3 to have a thickness of 5 -30 mm, for example, 10 mm.
步骤 S4、每铺一块阴极对应于开槽阳极位置的焦粒 4和石墨粉 3 后， 挂一块开槽阳极 1 ; Step S4, after each of the cathodes corresponds to the coke particles 4 and the graphite powder 3 at the position of the slotted anode, a slotted anode 1 is hung;
步骤 S5、 检查开槽阳极与阴极是否接触良好， 如接触不好， 釆 取往开槽阳极底掌塞焦粒的方法进行处理， 或者重复步骤 S1至 S4, 重新调整焦粒的厚度， 然后再铺下一块阴极的焦粒与石墨粉，依次挂 完所有阳极。 Step S5, checking whether the slotted anode and the cathode are in good contact, if the contact is not good, the method of processing the coke particles to the bottom of the slotted anode is processed, or steps S1 to S4 are repeated to re-adjust the thickness of the coke particles, and then Pour a cathode of coke particles and graphite powder, and then hang all the anodes in turn.
步骤 S6、 进行焙烧， 其焙烧方式与现有的普通焦粒焙烧技术相 同， 不再赘述。 In step S6, calcination is carried out, and the calcination method is the same as the conventional ordinary coke roasting technique, and will not be described again.
通过本发明实施例提供的铝电解异型阴极电解槽开槽阳极结构、 电解槽及焙烧方法，克服了铝液容易渗进人造伸腿和扎固缝产生的收 缩缝中， 造成电解槽渗铝停槽的风险； 与燃气焙烧方法比较， 减少购 买燃气焙烧专用装置， 极大的节约成本费用， 减少了安全隐患（因为 电解厂房未安装燃气管道的还需要如重新安装需要很大一笔建设费 用，釆用灌装燃气，在电解厂房高温环境中，会带来艮大的安全隐患）。 与异型阴极普通焦粒焙烧方法比较，普通焦粒焙烧铺设的焦粒量艮大 (约 2〜3吨）， 并且启动过程中炭渣的打捞工作量很大， 炭渣在阳极 底掌形成炭渣饼的可能性显著增大，对电解槽的后期管理带来^ ί艮大危 害，而异型阴极开槽焦粒焙烧方法能艮好地解决上述焙烧方法中存在 的问题， 简单实用， 操作方便， 并且焙烧效果很好， 对延长槽寿命有 很大作用。 上述实施例为本发明较佳的实施方式，但本发明的实施方式并不 受上述实施例的限制，其他的任何未背离本发明的精神实质与原理下 所作的改变、 修饰、 替代、 组合、 简化， 均应为等效的置换方式， 都 包含在本发明的保护范围之内。
The slotted anode structure, the electrolytic cell and the roasting method of the aluminum electrolysis shaped cathode electrolysis cell provided by the embodiment of the invention overcome the easy penetration of the aluminum liquid into the shrinkage joint generated by the artificial leg and the staking seam, thereby causing the electrolytic tank to aluminate the slot Risks; Compared with the gas roasting method, the purchase of special equipment for gas roasting is greatly reduced, and the cost is reduced, and the safety hazard is reduced (because the electrolysis plant does not have a gas pipeline installed, it requires a large construction cost, such as re-installation, 釆Filling with gas will bring great safety hazards in the high temperature environment of the electrolysis plant. Compared with the ordinary coke roasting method of the heterogeneous cathode, the amount of coke particles laid by ordinary coke roasting is large (about 2 to 3 tons), and the amount of charcoal slag is large during the startup process, and the carbon residue forms carbon in the anode bottom. The possibility of slag cake is significantly increased, which brings great harm to the later management of the electrolytic cell, and the hetero-cathode-grooving coke granule roasting method can solve the problems in the above-mentioned roasting method, and is simple and practical, and is convenient to operate. , and the baking effect is very good, which has a great effect on extending the life of the tank. The above-described embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above-described embodiments, and any other changes, modifications, substitutions, combinations, and modifications may be made without departing from the spirit and scope of the invention. Simplifications, which are equivalent replacement means, are included in the scope of the present invention.
Claims
1、 铝电解异型阴极电解槽开槽阳极结构， 其特征在于： 在阳极上开有槽， 异型阴极的阴极凸台嵌在开槽阳极的槽中， 在 阴极凸台上有石墨粉， 在阴极凸台之间的阴极表面有焦粒。 1. A slotted anode structure for an aluminum electrolytic shaped cathode electrolysis cell, characterized in that: a groove is formed in the anode, a cathode boss of the shaped cathode is embedded in a groove of the slotted anode, and graphite powder is present on the cathode boss at the cathode The cathode surface between the bosses has coke particles.
2、根据权利要求 1所述的铝电解异型阴极电解槽开槽阳极结构， 其特征在于： 2. The slotted anode structure for an aluminum electrolytic profiled cathode electrolytic cell according to claim 1, wherein:
所述石墨粉的厚度为 5-30mm。 The graphite powder has a thickness of 5 to 30 mm.
3、根据权利要求 2所述的铝电解异型阴极电解槽开槽阳极结构， 其特征在于： 3. The slotted anode structure for an aluminum electrolytic profiled cathode electrolysis cell according to claim 2, wherein:
所述石墨粉的厚度为 10mm。 The graphite powder has a thickness of 10 mm.
4、根据权利要求 1所述的铝电解异型阴极电解槽开槽阳极结构， 其特征在于： 4. The slotted anode structure for an aluminum electrolytic profiled cathode electrolysis cell according to claim 1, wherein:
所述焦粒的厚度为 5-30mm。 The coke particles have a thickness of 5 to 30 mm.
5、根据权利要求 4所述的铝电解异型阴极电解槽开槽阳极结构， 其特征在于： 5. The slotted anode structure for an aluminum electrolytic profiled cathode electrolysis cell according to claim 4, wherein:
所述焦粒的厚度为 30mm。 The coke particles have a thickness of 30 mm.
6、 一种电解槽， 其特征在于， 包括铝电解异型阴极电解槽开槽 阳极结构， 所述铝电解异型阴极电解槽开槽阳极结构包括： 6. An electrolytic cell, comprising: an aluminum anode electrolysis shaped cathode electrolytic cell slotted anode structure, wherein the aluminum electrolytic shaped cathode electrolytic cell slotted anode structure comprises:
在阳极上开有槽， 异型阴极的阴极凸台嵌在开槽阳极的槽中， 在 阴极凸台上有石墨粉， 在阴极凸台之间的阴极表面有焦粒。 A groove is formed in the anode, a cathode boss of the shaped cathode is embedded in the groove of the slotted anode, graphite powder is present on the cathode boss, and coke particles are present on the cathode surface between the cathode bosses.
7、 根据权利要求 6所述的电解槽， 其特征在于： 7. The electrolysis cell of claim 6 wherein:
所述石墨粉的厚度为 5-30mm。 The graphite powder has a thickness of 5 to 30 mm.
8、 根据权利要求 7所述的电解槽， 其特征在于： 8. The electrolysis cell of claim 7 wherein:
所述石墨粉的厚度为 10mm。 The graphite powder has a thickness of 10 mm.
9、 根据权利要求 6所述的电解槽， 其特征在于： 9. The electrolysis cell of claim 6 wherein:
所述焦粒的厚度为 5-30mm。 The coke particles have a thickness of 5 to 30 mm.
10、 根据权利要求 9所述的电解槽， 其特征在于： 所述焦粒的厚度为 30mm。 10. The electrolysis cell of claim 9 wherein: The coke grain has a thickness of 30 mm.
11、铝电解异型阴极电解槽开槽阳极结构的焙烧方法， 其特征在 于， 包括： 11. A method for roasting a slotted anode structure of an aluminum electrolytic shaped cathode electrolytic cell, characterized in that:
在阴极凸台之间的阴极表面铺上焦粒； Coorating the surface of the cathode between the cathode bosses;
在所述阴极凸台上铺设石墨粉； Laying graphite powder on the cathode boss;
挂阳极； Hanging anode
进行焙烧。 Calcination is carried out.
12、 根据权利要求 11所述的铝电解异型阴极电解槽开槽阳极焙 烧方法， 其特征在于： 12. The method of slotted anode baking of an aluminum electrolytic shaped cathode electrolysis cell according to claim 11, wherein:
所述石墨粉的铺设厚度为 5-30mm。 The graphite powder is laid to a thickness of 5 to 30 mm.
13、 根据权利要求 12所述的铝电解异型阴极电解槽开槽阳极焙 烧方法， 其特征在于： 13. The method of slotting anode baking of an aluminum electrolytic shaped cathode electrolysis cell according to claim 12, wherein:
所述石墨粉的铺设厚度为 10mm。 The graphite powder was laid to a thickness of 10 mm.
14、 根据权利要求 13所述的铝电解异型阴极电解槽开槽阳极焙 烧方法， 其特征在于： 14. The method of slotting anode baking of an aluminum electrolytic shaped cathode electrolysis cell according to claim 13, wherein:
所述焦粒的铺设厚度为 5-30mm。 The coke particles are laid to a thickness of 5-30 mm.
15、 根据权利要求 14所述的铝电解异型阴极电解槽开槽阳极焙 烧方法， 其特征在于： 15. The method of slotted anode baking of an aluminum electrolytic shaped cathode electrolysis cell according to claim 14, wherein:
所述焦粒的铺设厚度为 30mm。 The coke particles were laid to a thickness of 30 mm.
16、根据权利要求 11至 15所述的铝电解异型阴极电解槽开槽阳 极焙烧方法， 其特征在于， 所述在阴极凸台之间的阴极表面铺上焦粒 之前还包括： The method according to any one of claims 11 to 15, wherein the cathode surface of the cathode between the cathode bosses is coated with coke particles before:
根据要铺设的焦粒厚度， 确定开槽阳极的开槽深度。 The grooved depth of the slotted anode is determined according to the thickness of the coke to be laid.
17、根据权利要求 11至 15所述的铝电解异型阴极电解槽开槽阳 极焙烧方法， 其特征在于， 所述在阴极凸台之间的阴极表面铺上焦粒 之前还包括： The method according to any one of claims 11 to 15, wherein the surface of the cathode between the cathode bosses is coated with coke particles, and the method further comprises:
测量开槽阳极的槽的深度， 以确定焦粒的铺设厚度。 The depth of the groove of the slotted anode is measured to determine the thickness of the coke deposit.
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