A production method for reducing the iron-carbon voltage drop of anode carbon blocks and anode carbon block finished product

Abstract

The present invention discloses a production method for reducing the iron-carbon voltage drop of an anode carbon block and a finished anode carbon block product, mainly relating to the field of anode carbon block production methods. It includes S1, grinding the flatness of the tamping bowl trough of the anode carbon block by a grinding device; S2, layering the tamping bowl trough of the anode carbon block according to the depth; S3, after the integrated control system takes over the layered area divided in the tamping bowl trough, grouting the calcined and continuously high-temperature molten iron and pouring it into the tamping bowl trough at a normal distribution rate until the molten iron grouting operation is completed in area A of the above-mentioned S2 step. The beneficial effect of the present invention is that it can ensure that the anode carbon block produced by this production method will not have a voltage difference problem caused by a loose and loose connection position after being connected to the anode end of the electrolytic cell, ensuring that the voltage difference between the metal end and the anode carbon block is small, so that the electrolytic cell can fully exert its electrolysis function.

Description

Technical Field

[0001] The present invention relates to the field of anode carbon block production methods, in particular to a production method for reducing the iron-carbon voltage drop of an anode carbon block and an anode carbon block finished product. Background Art

[0002] Anode carbon blocks are a common anode end block structure in electrolytic cells. Their main production method is to mix calcined petroleum coke and asphalt at high temperature, extrude the mixture through a molding device, and then roast the extruded anode carbon blocks in a roasting furnace, thereby completing the preparation of the finished anode carbon blocks. The anode carbon blocks are then transported to the electrolytic cell and used as the anode end of the electrolytic cell. In order to facilitate the stable and effective installation of the anode carbon blocks at the anode end of the electrolytic cell, a tamping bowl trough (installation trough) is set during the anode carbon block molding operation. This is to facilitate the connection of the anode carbon blocks to the anode metal end of the electrolytic cell, thereby ensuring that the anode carbon blocks can be effectively installed in the electrolytic cell.

[0003] When installing the anode metal end and anode carbon block of an electrolytic cell, in order to ensure an effective connection between the metal end and the ramming bowl, molten iron needs to be poured into the gap between the ramming bowl and the metal end after the metal end is inserted into the ramming bowl. This will make the connection between the metal end and the anode carbon block more closely fitting after the molten iron cools, thereby achieving the purpose of effective connection between the metal end and the anode carbon block. However, the traditional pouring and adhesion method will have the following problems:

[0004] 1. After solidification, the poured molten iron not only serves to secure the metal end to the ramming bowl of the anode carbon block, but also serves as a pathway in the electrolytic cell. Therefore, if the poured molten iron is unevenly poured at the connection, a large voltage difference will occur between the metal end and the anode carbon block. This is due to the large resistance of the molten iron, which in turn results in a lower electrolysis efficiency of the anode carbon block as the anode end, hindering effective electrolysis in the electrolytic cell.

[0005] 2. Because the anode carbon block is made of a mixture of calcined petroleum coke and asphalt, there will be a certain gap between the surface and the inside of the anode carbon block after the anode carbon block is formed. This makes it impossible for the traditional molten iron pouring method to effectively fit the molten iron into the gap inside the anode carbon block during operation, which will also lead to a large voltage difference between the metal end and the anode carbon block, and it is easy to cause the metal end and the anode carbon block to be not firmly fixed.

[0006] Therefore, based on the above problems, a production method for reducing the iron-carbon voltage drop of the anode carbon block and a setting of the finished anode carbon block are carried out, which can be different from the traditional method of pouring molten iron, so that the molten iron can be evenly poured into the gap between the metal end and the ramming bowl groove of the anode carbon block, thereby ensuring that the voltage difference between the metal end and the anode carbon block is small, so as to reduce the iron-carbon voltage drop of the anode carbon block and enable the electrolytic cell to fully exert its electrolysis function. Summary of the Invention

[0007] The purpose of the present invention is to provide a production method for reducing the iron-carbon voltage drop of an anode carbon block and a finished anode carbon block product. It can ensure that the anode carbon block produced by this production method will not have a voltage difference problem caused by a loose and loose connection position after being connected to the anode end of an electrolytic cell, and ensure that the voltage difference between the metal end and the anode carbon block is small, so as to reduce the iron-carbon voltage drop of the anode carbon block and enable the electrolytic cell to fully exert its electrolysis function.

[0008] To achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions:

[0009] A production method for reducing the iron-carbon voltage drop of an anode carbon block comprises the following steps:

[0010] S1, using a grinding device to grind the flatness of the tamping bowl of the anode carbon block, and to flatten and clean the attached end surface in the tamping bowl. After the flatness grinding is completed, the grinding waste in the tamping bowl and adhered to the attached end surface is cleaned;

[0011] S2, fixing the relative position between the metal end of the electrolytic cell and the pounding bowl groove of the anode carbon block by a fixing device, then stratifying the pounding bowl groove of the anode carbon block according to the depth dimension, dividing the stratified areas into A, B, ..., N-1, N according to the depth stratification information in different pounding bowl grooves, and transmitting the division information to the integrated control system;

[0012] S3, after the integrated control system receives the divided layered areas in the ramming bowl tank, it pours the calcined and continuously high-temperature molten iron into the ramming bowl tank through the conveying equipment, so that the molten iron is poured into the ramming bowl tank at a normal distribution rate until the molten iron grouting operation in area A of the above step S2 is completed;

[0013] S4, when the surface of the molten iron in the area A is in an initial crystallized state, grouting the molten iron again into the area B in the ramming bowl at a normal distribution rate until the area B is completely covered with molten iron;

[0014] S5, sequentially pouring molten iron into the ramming bowl trough into the divided regions formed in step S2, while the pouring needs to be performed at a normally distributed rate, and when pouring molten iron into adjacent divided regions, the surface of the molten iron in the layered region that has been poured with molten iron needs to be in an initial crystallized state;

[0015] S6, after the molten iron is poured into the N area in the ramming bowl trough, wait until the surface of the molten iron in the N area is in the initial crystallized state, and then continue to pour the molten iron into the ramming bowl trough, so that the molten iron overflows the ramming bowl trough and diffuses and adheres to the end surface of the anode carbon block around the upper end of the ramming bowl trough until the poured molten iron is completely cooled, thereby completing the molten iron pouring operation.

[0016] The anode carbon block flatness polishing step in step S1 is as follows:

[0017] Use the grinding wheel grinding mechanism to grind the inner wall of the tamping bowl groove of the anode carbon block to make the tamping bowl groove of the anode carbon block flat. At the same time, ensure that the tamping bowl groove is in a dry state, and use the fan mechanism to clean the anode carbon block waste ground in the tamping bowl groove.

[0018] In the step S3, the normal distribution rate mode during molten iron pouring is:

[0019] The pouring rate of pouring molten iron into the ramming bowl trough shows that the pouring rate in the initial stage and the final stage is higher than the pouring rate in the middle stage.

[0020] The hierarchical region division method in step S2 includes the following steps:

[0021] S21, input the standard size of the tamping bowl groove in the anode carbon block into the integrated control system, and process the imported standard size of the tamping bowl groove through the integrated control system, and according to the basic heat conduction equation:

[0022] ;

[0023] Calculate the stratified area information for standard sizes in the tamping bowl.

[0024] in, is the temperature, which changes with time t and spatial position, where ,in is the thermal diffusivity, is the thermal conductivity, is the density, is the specific heat capacity, is the Laplace operator of the temperature field, which is used to describe the change of temperature gradient;

[0025] S22, the integrated control system transmits the analyzed ramming bowl trough layer area information to the conveying equipment used for molten iron pouring, so that the conveying equipment performs the molten iron pouring operation according to the information transmitted by the integrated control system.

[0026] The molten iron pouring overflow mode in step S6 is:

[0027] The molten iron is poured close to the metal end through a conveying device, so that the molten iron flows and extends outward with the metal end as the center, and is poured close to the metal end at different angles, so that the molten iron effectively surrounds the metal end and overflows to contact the end face of the anode carbon block.

[0028] Anode carbon block finished product with a production method for reducing the iron-carbon voltage drop of anode carbon blocks:

[0029] The invention comprises an anode carbon block and a metal end. The ramming bowl groove of the anode carbon block and the metal end are connected by pouring molten iron, and the poured molten iron presents a conical radial structure at the position of the metal end.

[0030] The inner end surface of the ramming bowl trough is a non-granular end surface, and the end surface gap on the non-granular end surface is tightly filled with poured molten iron.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] 1. Different from the traditional molten iron pouring method, this method first grinds the flatness of the end surface of the anode carbon block in the tamping bowl groove. Because before roasting, the dressing will continue to be screwed into the tamping bowl groove to meet the roasting requirements of the anode carbon block. Here, the flatness grinding of the end surface of the anode carbon block can not only remove the dressing mixed between the carbon block particles, but also remove some fixed and unstable end surface particles to ensure that the anode carbon block and the metal end of the electrolytic cell are effectively connected after the molten iron is poured.

[0033] 2. Secondly, when the connection between the tamping bowl trough and the metal end is made by pouring molten iron, the tamping bowl trough is divided into layered areas, so that the molten iron is poured according to the different divided areas, and the molten iron is poured at a normal distribution rate, so that the molten iron can be stably and effectively infiltrated and cooled in the divided areas, so that the molten iron can effectively penetrate into the gap of the end surface of the tamping bowl trough, thereby ensuring that the integrity between the anode carbon block and the metal end is stronger under the action of the molten iron after pouring. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Attachment Figure 1 It is a schematic structural diagram of the anode carbon block of the present invention.

[0035] Attachment Figure 2It is a structural schematic diagram of the anode carbon block extrusion molding die of the present invention.

[0036] Attachment Figure 3 It is a schematic diagram of the layered area division in the anode carbon block tamping bowl tank of the present invention.

[0037] Attachment Figure 4 It is a theoretical cross-sectional view after molten iron pouring according to the present invention.

[0038] Reference numerals shown in the accompanying drawings:

[0039] 1. Anode carbon block; 2. Pounding bowl; 3. Metal end. DETAILED DESCRIPTION

[0040] Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiments are only used to illustrate the present invention and are not used in limiting the scope of the present invention.In addition, should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the application equally.

[0041] The basic requirement for the anode carbon block 1 as the anode end of the electrolytic cell is to be effectively connected to the anode metal end 3 of the electrolytic cell. The normal and effective connection method is to effectively fix the anode carbon block 1 and the metal end 3 by pouring molten iron. However, this method has the following problems:

[0042] 1. During the forming and preparation of the anode carbon block 1, a baking operation is required. In order to prevent the trough body of the ramming bowl 2 from being deformed by heat during baking, fillers are filled inside. This means that after baking, the fillers in the ramming bowl 2 of the anode carbon block 1 need to be cleaned, which causes some fillers to remain in the gaps in the ramming bowl 2. When molten iron is subsequently poured into the ramming bowl 2, the presence of the fillers will prevent the molten iron from effectively contacting the inner wall of the ramming bowl 2, thereby affecting the normal contact between the molten iron and the anode carbon block 1.

[0043] 2. After solidification, the poured molten iron not only serves to secure the metal end 3 to the ramming bowl 2 of the anode carbon block 1, but also serves as a pathway in the electrolytic cell. Therefore, if the poured molten iron is unevenly poured at the connection, a large voltage difference will occur between the metal end 3 and the anode carbon block 1. This is caused by the high resistance of the molten iron, which in turn reduces the electrolysis efficiency of the anode carbon block 1 as the anode end, hindering effective electrolysis in the electrolytic cell.

[0044] 3. At the same time, the raw material of the anode carbon block 1 is a mixture of calcined petroleum coke and asphalt. Therefore, after the anode carbon block 1 is formed, a certain gap will appear between the surface and the inside of the anode carbon block 1. This makes it impossible for the traditional molten iron pouring method to effectively fit the molten iron into the gap inside the anode carbon block 1 during operation, which will also lead to a large voltage difference between the metal end 3 and the anode carbon block 1, and it is easy to cause the metal end 3 and the anode carbon block 1 to be not firmly fixed.

[0045] Based on the above technical problems, different from the traditional method, a production method for reducing the iron-carbon voltage drop of the anode carbon block 1 is designed, which includes the following steps:

[0046] S1, the ramming bowl 2 of the anode carbon block 1 is polished for flatness by a polishing device, so that the attached end surface in the ramming bowl 2 is smoothed and cleaned, and after the flatness is completed, the polishing waste in the ramming bowl 2 and adhered to the attached end surface is cleaned; in order to solve the problem of fillers in the ramming bowl 2 of the anode carbon block 1, a polishing device is used here to polish the inner wall of the ramming bowl 2 of the anode carbon block 1. First, the fillers in the anode carbon block 1 will affect the normal contact between the molten iron and the anode carbon block 1, and they need to be effectively cleaned; secondly, and more importantly, the anode carbon block 1 itself is generated by mixing calcined petroleum coke and asphalt of different particle sizes, so the calcined petroleum coke particles in the inner wall of the ramming bowl 2 are prone to falling off under the action of external force if they are not leveled. In this case, the poured molten iron will come into contact with unstable particles, thereby affecting the stability of the poured molten iron. Therefore, the grinding equipment here also needs to clean and level the uneven particles in the ramming bowl trough 2 to meet the stability requirements after the molten iron is poured.

[0047] S2, fixing the relative position between the metal end 3 of the electrolytic cell and the pounding bowl 2 of the anode carbon block 1 by a fixing device, then stratifying the pounding bowl 2 of the anode carbon block 1 according to the depth dimension, dividing the stratified areas into A, B, ..., N-1, N according to the depth stratification information in different pounding bowls 2, and transmitting the division information to the integrated control system;

[0048] S3, after the integrated control system receives the divided layered areas in the ramming bowl 2, it pours the calcined and continuously high-temperature molten iron into the ramming bowl 2 through the conveying equipment at a normal distribution rate until the molten iron grouting operation in area A of the above step S2 is completed;

[0049] S4, when the surface of the molten iron in the area A is in an initial crystallized state, grouting the molten iron again into the area B in the ramming bowl 2 at a normal distribution rate until the area B is completely covered with molten iron;

[0050] Regarding the operation purpose of the above-mentioned S2-S4, because the traditional molten iron pouring method is to directly pour the molten iron into the ramming bowl 2 at one time during operation to achieve the connection between the ramming bowl 2 and the anode carbon block 1. When the above-mentioned method is operated, the ramming bowl 2 is divided into layers according to the depth, so that different molten iron pouring operations are performed in different layers. For the traditional molten iron pouring method, after the high-temperature molten iron is directly poured into the ramming bowl 2 at one time, the overall volume of the molten iron decreases due to the gradual close arrangement of the molecules during the cooling process of the molten iron. In this case, there will be a problem of force between the molten iron and the inner wall of the ramming bowl 2 during the cooling process, thereby causing a gap between the molten iron and the ramming bowl 2 under the force. Although the gap is small, it will directly affect the effective connection between the molten iron and the ramming bowl 2. Moreover, the most important thing is that the molten iron that penetrates into the gap of the inner wall of the ramming bowl 2 will also be unable to effectively contact the gap of the inner wall of the ramming bowl 2 due to thermal expansion and contraction, thereby preventing effective contact between the molten iron and the ramming bowl 2.

[0051] Through the above steps, the molten iron is poured into the divided areas of the ramming bowl trough 2 at a normally distributed rate. In the initial stage of pouring, it is believed that the molten iron is less and not easy to accumulate heat, so the rate can be faster at this stage. As the molten iron is gradually poured, the pouring rate of the molten iron gradually slows down, making it easier for heat to diffuse outward and not easy to accumulate heat, so that the molten iron can better penetrate in this state. Subsequently, as the molten iron pouring operation in a certain area is gradually completed, the pouring rate is accelerated, thereby completing the molten iron pouring operation in the area. The molten iron pouring operation in the first stage is not the most important. The most important thing is that when the molten iron surface in area A is in the initial crystallization state, the molten iron pouring operation in the next area is carried out; the originality of this method is that when the molten iron surface in the previous stage is in the initial crystallization state, it is proved that the molten iron in the previous stage begins to be in a crystallization state, but in this state, the molten iron still has a certain fluidity. When the molten iron in the next area is poured, the heat can be transferred to the molten iron in the previous area, so that the molten iron in the previous area that is in contact with the inner wall of the ramming bowl trough 2 continues to be in a fluid state, thereby extending the cooling time of the molten iron in this area. In addition, because the molten iron in the next area absorbs heat, the heat in the molten iron pouring area can be better diffused outward, that is, while the molten iron that is about to be in solid state cooling in the previous stage is hot-melted, the heat of the molten iron in the pouring area is ensured to be better diffused outward. This method can better dissipate the heat in the molten iron, and at the same time, it can also ensure that the molten iron that is about to solidify in the previous stage remains in an infiltration state within the gap, and will not excessively escape from the end surface gap of the ramming bowl trough 2 due to shrinkage. Moreover, the poured and infiltrated molten iron can be kept at a relatively high temperature state at all times, and because of the pressure of the poured molten iron, the poured molten iron is subjected to the effects of high temperature and pressure, which reduces the shrinkage size of the molten iron infiltrated in the inner wall of the ramming bowl trough 2, so as to achieve a tighter fit between the molten iron and the inner wall of the ramming bowl trough 2 after cooling, thereby reducing the voltage difference between the anode carbon block 1 and the metal end 3 during the electrolysis process, so as to achieve the purpose of effective electrolysis.

[0052] S5, sequentially pouring molten iron into the area divided into the ramming bowl 2 in step S2, while the pouring is required to be performed at a normally distributed rate, and when pouring molten iron into adjacent divided areas, the surface of the molten iron in the layered area that has been poured with molten iron in the previous step is required to be in an initial crystallized state;

[0053] S6, after the molten iron is poured into the N area in the ramming bowl 2, wait until the surface of the molten iron in the N area is in the initial crystallized state, and then continue to pour the molten iron into the ramming bowl 2, so that the molten iron overflows the ramming bowl 2 and diffuses and adheres to the end surface of the anode carbon block 1 around the upper end of the ramming bowl 2 until the poured molten iron is completely cooled, thereby completing the molten iron pouring operation.

[0054] The top pouring method of the ramming bowl 2 in step S6 is to ensure that the poured molten iron and the top end surface of the anode carbon block 1 can be effectively released, thereby further achieving the purpose of reducing the voltage difference between the metal end 3 and the anode carbon block 1.

[0055] The above method operation is further optimized as follows:

[0056] The flatness grinding step of the anode carbon block 1 in step S1 is as follows: use a grinding wheel grinding mechanism to grind the inner wall of the ramming bowl trough 2 of the anode carbon block 1 so that the ramming bowl trough 2 of the anode carbon block 1 is in a flat state, and at the same time ensure that the ramming bowl trough 2 is in a dry state, and use a blower mechanism to clean the anode carbon block 1 waste material ground in the ramming bowl trough 2. Here, the dry state in the ramming bowl trough 2 is mainly highlighted to avoid the problem of excessive water vaporization after the molten iron is poured into the ramming bowl trough 2, thereby affecting the normal penetration of the molten iron into the gap on the inner wall of the ramming bowl trough 2. At the same time, if too much water vapor is generated, it will lead to the generation of cavity bubbles in the molten iron, thereby causing the voltage difference between the metal end 3 and the anode carbon block 1 to become larger.

[0057] In the step S3, the normal distribution rate mode when pouring molten iron is as follows: the pouring rate of the molten iron into the ramming bowl trough 2 shows that the pouring rate in the initial stage and the final stage is higher than the pouring rate in the middle stage. The description of the normal distribution pouring rate is given above and will not be further explained here.

[0058] The hierarchical region division method in step S2 includes the following steps:

[0059] S21, input the standard size of the pounding bowl tank 2 in the anode carbon block 1 into the integrated control system, and process the imported standard size of the pounding bowl tank 2 through the integrated control system, and according to the basic heat conduction equation:

[0060] ;

[0061] Calculate the layered area information for standard sizes in the tamping bowl 2.

[0062] in, is the temperature, which changes with time t and spatial position, where ,in is the thermal diffusivity, is the thermal conductivity, is the density, is the specific heat capacity, is the Laplace operator of the temperature field, which is used to describe the change of temperature gradient;

[0063] S22, the integrated control system transmits the analyzed layered area information of the ramming bowl trough 2 to the conveying equipment used for molten iron pouring, so that the conveying equipment performs the molten iron pouring operation according to the information transmitted by the integrated control system.

[0064] Because the sizes of the area divisions for the anode carbon blocks 1 in the ramming bowl troughs 2 of different sizes and depths are different, and for the basic formula of heat conduction, it can be calculated based on the thermal conductivity of the molten iron and the anode carbon block 1 and the Laplace operator of the temperature field to determine the cardinal size suitable for the area size division in the ramming bowl troughs 2 of different sizes and depths, so as to facilitate the heat capacity connection operation between the metal end 3 and the molten iron of the anode carbon block 1 of different sizes and specifications.

[0065] The molten iron pouring and overflowing method in the step S6 is: the molten iron is poured close to the metal end 3 through the conveying equipment, so that the molten iron flows and extends outward with the position of the metal end 3 as the center, and the molten iron is poured close to the metal end 3 at different angles, so that the molten iron effectively surrounds the metal end 3 and overflows to contact the end face of the anode carbon block 1.

[0066] A finished product of an anode carbon block 1 produced by a method for reducing the iron-carbon voltage drop of an anode carbon block 1:

[0067] It includes an anode carbon block 1 and a metal end 3. The ramming bowl 2 of the anode carbon block 1 and the metal end 3 are connected by pouring molten iron, and the poured molten iron presents a conical radial structure at the position of the metal end 3, thereby achieving the purpose of effectively fixing the metal end 3 and the anode carbon block 1 while reducing the voltage difference between the two.

[0068] The inner end face of the ramming bowl trough 2 is a non-granular end face, and the end face gap on the non-granular end face is tightly filled with poured molten iron. After the molten iron is poured by the above method, the metallic iron in the ramming bowl trough 2 will be effectively distributed and penetrated into the gap of the ramming bowl trough 2, thereby minimizing the voltage difference between the anode carbon block 1 and the metal end 3 to the greatest extent, so as to ensure that the produced anode carbon block 1 is effectively used as the anode end of the electrolytic cell.

[0069] Therefore, a production method for reducing the iron-carbon voltage drop of the anode carbon block 1 and the finished anode carbon block 1 can ensure that the anode carbon block 1 produced by this production method will not have a voltage difference problem caused by a loose and loose connection position after being connected to the anode end of the electrolytic cell, and ensure that the voltage difference between the metal end 3 and the anode carbon block 1 is small, so as to reduce the iron-carbon voltage drop of the anode carbon block 1, so that the electrolytic cell can fully exert its electrolysis function.

Claims

1. A production method for reducing the iron-carbon voltage drop of anode carbon blocks, characterized in that: The steps include: S1, using a grinding device to grind the flatness of the tamping bowl of the anode carbon block, and to flatten and clean the attached end surface in the tamping bowl. After the flatness grinding is completed, the grinding waste in the tamping bowl and adhered to the attached end surface is cleaned; S2, fixing the relative position between the metal end of the electrolytic cell and the pounding bowl groove of the anode carbon block by a fixing device, then stratifying the pounding bowl groove of the anode carbon block according to the depth dimension, dividing the stratified areas into A, B, ..., N-1, N according to the depth stratification information in different pounding bowl grooves, and transmitting the division information to the integrated control system; S3, after the integrated control system receives the divided layered areas in the ramming bowl tank, it pours the calcined and continuously high-temperature molten iron into the ramming bowl tank through the conveying equipment, so that the molten iron is poured into the ramming bowl tank at a normal distribution rate until the molten iron grouting operation in area A of the above step S2 is completed; S4, when the surface of the molten iron in the area A is in an initial crystallized state, grouting the molten iron again into the area B in the ramming bowl at a normal distribution rate until the area B is completely covered with molten iron; S5, sequentially pouring molten iron into the ramming bowl trough into the divided regions formed in step S2, while the pouring needs to be performed at a normally distributed rate, and when pouring molten iron into adjacent divided regions, the surface of the molten iron in the layered region that has been poured with molten iron needs to be in an initial crystallized state; S6, after the molten iron is poured into the N region of the ramming bowl, wait until the surface of the molten iron in the N region is in an initial crystallized state, and then continue pouring the molten iron into the ramming bowl, so that the molten iron overflows the ramming bowl and diffuses and adheres to the end surface of the anode carbon block around the upper end of the ramming bowl until the poured molten iron is completely cooled, thereby completing the molten iron pouring operation; In the step S3, the normal distribution rate mode during molten iron pouring is: The pouring rate of pouring molten iron into the ramming bowl trough shows that the pouring rate in the initial stage and the final stage is higher than the pouring rate in the middle stage.

2. The method for reducing the iron-carbon voltage drop of anode carbon blocks according to claim 1, characterized in that: The anode carbon block flatness polishing step in step S1 is as follows: Use the grinding wheel grinding mechanism to grind the inner wall of the tamping bowl groove of the anode carbon block to make the tamping bowl groove of the anode carbon block flat. At the same time, ensure that the tamping bowl groove is in a dry state, and use the fan mechanism to clean the anode carbon block waste ground in the tamping bowl groove.

3. The method for reducing the iron-carbon voltage drop of anode carbon blocks according to claim 1, characterized in that: The hierarchical region division method in step S2 includes the following steps: S21, input the standard size of the tamping bowl groove in the anode carbon block into the integrated control system, and process the imported standard size of the tamping bowl groove through the integrated control system, and according to the basic heat conduction equation: ； Calculate the stratified area information for standard sizes in the tamping bowl. in, is the temperature, which changes with time t and spatial position, where ,in is the thermal diffusivity, is the thermal conductivity, is the density, is the specific heat capacity, is the Laplace operator of the temperature field, which is used to describe the change of temperature gradient; S22, the integrated control system transmits the analyzed ramming bowl trough layer area information to the conveying equipment used for molten iron pouring, so that the conveying equipment performs the molten iron pouring operation according to the information transmitted by the integrated control system.

4. The method for reducing the iron-carbon voltage drop of anode carbon blocks according to claim 1, characterized in that: The molten iron pouring overflow mode in step S6 is: The molten iron is poured close to the metal end through the conveying equipment, so that the molten iron flows and extends outward with the metal end as the center, and the molten iron is poured at different angles of the metal end, so that the molten iron effectively surrounds the metal end and overflows to contact the end face of the anode carbon block.

5. A finished anode carbon block, prepared by the production method for reducing the iron-carbon voltage drop of an anode carbon block according to any one of claims 1 to 4, characterized in that: The invention comprises an anode carbon block and a metal end. The ramming bowl groove of the anode carbon block and the metal end are connected by pouring molten iron, and the poured molten iron presents a conical radial structure at the position of the metal end.

6. The finished anode carbon block according to claim 5, characterized in that: The inner end surface of the ramming bowl trough is a non-granular end surface, and the end surface gap on the non-granular end surface is tightly filled with poured molten iron.

Images