Production method for reducing iron-carbon voltage drop of anode carbon block and anode carbon block finished product

Abstract

The invention discloses a production method for reducing iron-carbon voltage drop of an anode carbon block and an anode carbon block finished product, and mainly relates to the field of anode carbon block production methods. Comprising the steps that S1, flatness grinding is conducted on the interior of a bowl smashing groove of the anode carbon block through grinding equipment; s2, layering the pounding bowl groove of the anode carbon block according to the depth; and S3, after the integrated control system receives the layered areas divided in the tamping bowl groove, the calcined molten iron which is continuously kept at the high temperature is grouted and poured into the tamping bowl groove at the normal distribution rate till the molten iron grouting operation is completed in the area A in the step S2. The production method has the beneficial effects that after the anode carbon block produced by the production method is connected with the anode end of the electrolytic tank, the problem of voltage difference caused by untight and infirm connection position is avoided, and the voltage difference between the metal end and the anode carbon block is relatively small; and the electrolytic tank can give full play to the electrolysis function.

Description

Technical Field

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

[0002] An anode carbon block is a common anode end block structure in an electrolytic cell. Its main production method is to mix calcined petroleum coke and pitch at high temperature, then extrude the mixture of the anode carbon block through a forming device, and bake the extruded anode carbon block in a baking furnace to complete the preparation operation of the finished anode carbon block. Subsequently, the anode carbon block is 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 block at the anode end position of the electrolytic cell, a dimple groove (installation groove) is set during the forming operation of the anode carbon block. The purpose is to facilitate the connection between the anode carbon block and the metal end of the anode in the electrolytic cell, so as to ensure that the anode carbon block can be effectively installed in the electrolytic cell.

[0003] When installing the anode metal end of the electrolytic cell and the anode carbon block, in order to ensure an effective connection between the metal end and the dimple groove, after the metal end is inserted into the dimple groove, it is necessary to pour molten iron into the gap existing at the connection between the dimple groove and the metal end, so that after the molten iron cools, the connection between the metal end and the anode carbon block becomes more fitting, thereby achieving the purpose of effectively connecting the metal end and the anode carbon block. However, the following problems will occur with the traditional pouring and adhesion method: 1. Because the poured molten iron, after solidification, is not only used for fixing between the metal end and the dimple groove of the anode carbon block, but also serves as a path in the electrolytic cell. Therefore, if the poured molten iron is unevenly poured at the connection, there will be a large voltage difference between the metal end and the anode carbon block, which is caused by the relatively large resistance of the molten iron, and further leads to a low electrolysis efficiency of the anode carbon block as the anode end, which is not conducive to the effective electrolysis of the electrolytic cell.

[0004] 2. Since the anode carbon block production material is a mixture of calcined petroleum coke and pitch, after the anode carbon block is formed, there will also be certain gaps between the surface and the inside of the anode carbon block. This makes it impossible for the traditional molten iron pouring method to effectively fit the molten iron into the gaps 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 have the problem of insecure fixation between the metal end and the anode carbon block.

[0005] Therefore, based on the above problems, a production method for reducing the iron-carbon voltage drop of anode carbon blocks and the setting of finished anode carbon blocks are provided. This method can be different from the traditional way of pouring molten iron between them, enabling the molten iron to be evenly poured into the gap between the metal end and the tamping bowl groove of the anode carbon block, thereby ensuring a small voltage difference between the metal end and the anode carbon block, reducing the iron-carbon voltage drop of the anode carbon block, and enabling the electrolytic cell to fully exert its electrolytic function. Summary of the Invention

[0006] The object of the present invention is to provide a production method for reducing the iron-carbon voltage drop of anode carbon blocks and finished anode carbon blocks. After the anode carbon blocks produced by using this production method are connected to the anode end of the electrolytic cell, problems such as loose and unstable connection positions leading to voltage differences can be avoided, ensuring a small voltage difference between the metal end and the anode carbon block, reducing the iron-carbon voltage drop of the anode carbon block, and enabling the electrolytic cell to fully exert its electrolytic function.

[0007] To achieve the above object, the present invention is realized through the following technical solutions: A production method for reducing the iron-carbon voltage drop of anode carbon blocks includes the following steps: S1. Use a grinding device to polish the inside of the tamping bowl groove of the anode carbon block to make the attached end face inside the tamping bowl groove flat and clean. After the flatness is completed, clean the grinding waste inside the tamping bowl groove and adhered to the attached end face. S2. Use a fixing device to fix the relative position between the metal end of the electrolytic cell and the tamping bowl groove of the anode carbon block, and then layer the tamping bowl groove of the anode carbon block according to the depth dimension. Divide the layering area according to the depth layering information in different tamping bowl grooves: A, B,..., N - 1, N, and transmit the division information to the integrated control system. S3. After the integrated control system receives the layered areas divided inside the tamping bowl groove, use a conveying device to pour the calcined and continuously high-temperature molten iron into the tamping bowl groove at a normal distribution rate until the molten iron pouring operation in area A of step S2 is completed. S4. When the surface of the molten iron in area A is in the initial crystallization state, pour molten iron into area B inside the tamping bowl groove again at a normal distribution rate until area B is completely covered with molten iron. S5. Pour molten iron into the area divisions of the tamping bowl groove in step S2 in sequence, and the pouring requirement is to pour at a normal distribution rate. When pouring molten iron into adjacent divided areas, the surface of the molten iron in the previously poured layered area needs to be in the initial crystallization state. S6. After the molten iron is poured into the N area of the pouring bowl groove, when the surface of the molten iron in the N area is in the initial crystallization state, continue to pour the molten iron into the pouring bowl groove, so that the molten iron overflows the pouring bowl groove and spreads and adheres to the end face of the anode carbon block around the upper end of the pouring bowl groove until the poured molten iron is completely cooled, thus completing the molten iron pouring operation.

[0008] The step of grinding the flatness of the anode carbon block in the S1 step is as follows: Use a grinding wheel grinding mechanism to grind the inner wall of the pouring bowl groove of the anode carbon block to make the pouring bowl groove of the anode carbon block in a flat state. At the same time, ensure that the inside of the pouring bowl groove is in a dry state, and use a blower mechanism to clean the waste of the anode carbon block ground in the pouring bowl groove.

[0009] In the S3 step, the normal distribution rate method during the molten iron pouring is as follows: The pouring rate of pouring the molten iron into the pouring bowl groove shows that the pouring rates in the initial stage and the end stage are higher than the pouring rate in the middle stage.

[0010] The method of dividing the layered area in the S2 step includes the following steps: S21. Input the standard size of the pouring bowl groove in the anode carbon block into the integrated control system. The integrated control system processes the imported standard size of the pouring bowl groove and calculates the layered area information for the standard size in the pouring bowl groove according to the basic heat conduction equation: ; Calculate the layered area information for the standard size in the pouring bowl groove. Among them, is the temperature, which changes with time t and spatial position. In the formula, , where 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 temperature gradient change; S22. The integrated control system transmits the analyzed layered area information of the pouring bowl groove to the conveying equipment 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.

[0011] The molten iron pouring overflow method in the S6 step is as follows: Pour the molten iron against the metal end through the conveying equipment, so that the molten iron flows and extends outward with the metal end position as the center, and perform water-lean pouring at different angular positions 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.

[0012] Anode carbon block finished product of a production method for reducing the iron-carbon voltage drop of anode carbon blocks: The invention comprises an anode carbon block and a metal end. The tamping 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.

[0013] The inner end surface of the tamping bowl groove is a non-granular end surface, and the end surface gap on the non-granular end surface is tightly filled with poured molten iron.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. Different from the traditional molten iron pouring method, this method first grinds the flatness of the end face 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 face 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 face particles to ensure that the anode carbon block and the metal end of the electrolytic cell are effectively connected after pouring molten iron.

[0015] 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, and the molten iron can effectively penetrate into the gap on 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

[0016] Attached Figure 1 It is a schematic structural diagram of the anode carbon block of the present invention.

[0017] Attached Figure 2 It is a structural schematic diagram of the anode carbon block extrusion molding die of the present invention.

[0018] Attached Figure 3 It is a schematic diagram of dividing the layered areas in the anode carbon block pounding bowl tank according to the present invention.

[0019] Attached Figure 4 It is a theoretical cross-sectional view after molten iron pouring according to the present invention.

[0020] Numbers shown in the accompanying drawings: 1. Anode carbon block; 2. Ramming bowl; 3. Metal end. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it 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 also fall within the scope defined by this application.

[0022] 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 through the method of pouring molten iron. However, the following problems exist in this method: 1. During the forming and preparation operation of the anode carbon block 1, a roasting operation is required. In order to avoid the problem of heat-induced deformation of the trough body of the ramming bowl 2 during roasting, a filler is filled inside it. This makes it necessary to clean the filler in the ramming bowl 2 of the anode carbon block 1 after roasting is completed, which causes some filler to remain in the gaps inside the ramming bowl 2. When pouring molten iron into the ramming bowl 2 later, the molten iron cannot effectively contact the inner wall of the ramming bowl 2 due to the presence of the filler, thus affecting the normal contact between the molten iron and the anode carbon block 1.

[0023] 2. Since the poured molten iron, after solidification, not only serves to fix the metal end 3 and the ramming bowl 2 of the anode carbon block 1, but also needs to serve as a path in the electrolytic cell. Therefore, if the poured molten iron is unevenly poured at the joint, there will be a large voltage difference between the metal end 3 and the anode carbon block 1, which is caused by the relatively large resistance of the molten iron, and further leads to a low electrolysis efficiency of the anode carbon block 1 as the anode end, which is not conducive to the effective electrolysis of the electrolytic cell.

[0024] 3. At the same time, the raw material of the anode carbon block 1 is a mixture of calcined petroleum coke and pitch. Therefore, after the anode carbon block 1 is formed, there will also be certain gaps between the surface and the interior 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 gaps inside the anode carbon block 1 during operation, thus also resulting in a large voltage difference between the metal end 3 and the anode carbon block 1 and prone to the problem of insecure fixation between the metal end 3 and the anode carbon block 1.

[0025] 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, including the following steps: S1. Use a grinding device to polish the flatness inside the ramming bowl groove 2 of the anode carbon block 1, so as to level and clean the attachment end surface inside the ramming bowl groove 2. After the flatness is completed, clean the grinding waste inside the ramming bowl groove 2 and adhered to the attachment end surface. Regarding the filler problem in the ramming bowl groove 2 of the anode carbon block 1, here use a grinding device to polish the inner wall of the ramming bowl groove 2 of the anode carbon block 1. First, the filler existing in the anode carbon block 1 will affect the normal contact between the molten iron and the anode carbon block 1, and it needs to be effectively cleaned. Second, and more importantly, the anode carbon block 1 itself is formed by mixing calcined petroleum coke with different particle sizes and pitch. Therefore, without leveling treatment, the calcined petroleum coke particles on the inner wall of the ramming bowl groove 2 are likely to have the problem of particle shedding under the action of external force. In this case, it will cause the molten iron after pouring to come into contact with the unstable particles, thus affecting the stability of the molten iron after pouring. So the grinding device here also needs to clean and level the uneven particles in the ramming bowl groove 2 to meet the stability requirements after the molten iron is poured.

[0026] S2. Use a fixing device to fix the relative position between the metal end 3 of the electrolytic cell and the ramming bowl groove 2 of the anode carbon block 1, and then layer the ramming bowl groove 2 of the anode carbon block 1 according to the depth dimension. Divide the layering area according to the depth layering information in different ramming bowl grooves 2: A, B, ……, N - 1, N, and transmit the division information to the integrated control system; S3. After the integrated control system receives the layered areas divided inside the ramming bowl groove 2, use a conveying device to pour the calcined and continuously high - temperature molten iron grout into the ramming bowl groove 2 at a normal distribution rate until the molten iron grouting operation is completed in area A of the above step S2; S4. When the surface of the molten iron in area A is in the initial crystallization state, perform the molten iron grouting operation again into area B inside the ramming bowl groove 2 at a normal distribution rate until area B is completely covered with molten iron; For the operation purposes of S2 - S4 above, in the traditional hot metal pouring method, when operating, the hot metal is directly poured into the ramming bowl groove 2 at once to achieve the connection between the ramming bowl groove 2 and the anode carbon block 1. However, when operating the above method, by dividing the ramming bowl groove 2 into layers according to the depth, different hot metal pouring operations are carried out in different divided areas. For the traditional hot metal pouring method, after directly pouring the high-temperature hot metal into the ramming bowl groove 2 at once, during the cooling process of the hot metal, due to the gradual close arrangement of molecules, the overall volume of the hot metal decreases. In this case, there will be a problem that there is a force between the hot metal and the inner wall of the ramming bowl groove 2 during the cooling process, resulting in a gap between the hot metal and the ramming bowl groove 2 under the action of the force. Although this gap is small, it will directly affect the effective connection between the hot metal and the ramming bowl groove 2. And most importantly, the hot metal that penetrates into the gap of the inner wall of the ramming bowl groove 2 will also have a problem that it cannot effectively contact the gap of the inner wall of the ramming bowl groove 2 due to thermal expansion and contraction, thus unable to make the hot metal and the ramming bowl groove 2 effectively contact.

[0027] Through the above steps of operation, the molten iron is poured into the area division position in the ramming bowl 2 at a normal distribution rate. In the initial stage of pouring, since there is less molten iron at this time and it is not easy to accumulate heat, the rate can be relatively fast in this stage. As the molten iron is gradually poured, the pouring rate of the molten iron gradually slows down, making it easier for the heat to diffuse outward and not easy to accumulate heat, so that the molten iron can penetrate better in this state. Subsequently, when the pouring operation of the molten iron in a certain area is gradually completed, the pouring rate is accelerated, thus completing the pouring operation of the molten iron in the area. The pouring operation of the molten iron in the first stage is not the most important. The most important thing is to perform the pouring operation of the molten iron in the next area when the surface of the molten iron in area A is in the initial crystallization state. The principle of this method is that when the surface of the molten iron in the previous stage is in the initial crystallization state, it proves that the molten iron in the previous stage has started to be in the crystallization state, but the molten iron still has a certain fluidity in this state. When the molten iron in the next area is poured, it can transfer heat to the molten iron in the previous area, making the molten iron in contact with the inner wall of the ramming bowl 2 in the previous area continue to be in a fluid state, so as to extend the cooling time of the molten iron in this area. And because the molten iron in the next area absorbs heat, the heat in the area where the molten iron is poured can diffuse better outward. That is, while melting the molten iron that is about to be in a solid state and cooled in the previous stage, it ensures that the heat of the molten iron in the pouring area diffuses better outward. This method can make the heat in the molten iron dissipate better, and at the same time can ensure that the molten iron that is about to solidify in the previous stage remains in the penetration state in the gap and will not be overly separated from the end face gap of the ramming bowl 2 due to cold shrinkage. Moreover, it can always keep the poured and penetrated molten iron in a relatively high temperature state. And due to the action of the pouring pressure of the molten iron, the poured molten iron, under the action of high temperature and pressure, reduces the cold shrinkage size of the molten iron penetrating into the inner wall of the ramming bowl 2, so as to achieve the purpose of closer fitting between the molten iron and the inner wall of the ramming bowl 2 after cooling, thereby reducing the voltage difference between the anode carbon block 1 and the metal end 3 during the electrolysis process to achieve the purpose of effective electrolysis.

[0028] S5. Pour the molten iron into the area divisions of the ramming bowl 2 carried out in step S2 in sequence. At the same time, the pouring requirement is to pour at a normal distribution rate. And when pouring the molten iron into the adjacent divided areas, the surface of the molten iron in the stratified area where the molten iron has been poured in the previous step needs to be in the initial crystallization state. S6. After the molten iron is poured into area N of the ramming bowl 2, when the surface of the molten iron in area N is in the initial crystallization state, continue to pour the molten iron into the ramming bowl 2, so that the molten iron overflows the ramming bowl 2 and spreads and adheres to the end face of the anode carbon block 1 around the upper end of the ramming bowl 2 until the poured molten iron is completely cooled, thus completing the molten iron pouring operation.

[0029] For the pouring method at the top of the ladle groove 2 in step S6, it is to ensure that effective contact can also be achieved between the poured molten iron and the top end face of the anode carbon block 1, so as to further reduce the voltage difference between the metal end 3 and the anode carbon block 1.

[0030] The following further step optimizations are carried out on the above method operation: 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 ladle groove 2 of the anode carbon block 1 to make the ladle groove 2 of the anode carbon block 1 in a flat state. At the same time, under the condition that the ladle groove 2 is in a dry state, use a blower mechanism to clean the waste of the anode carbon block 1 ground in the ladle groove 2. Here, the dry state in the ladle groove 2 is mainly emphasized to avoid excessive water vaporization problems after the molten iron is poured into the ladle groove 2, which affects the normal penetration of the molten iron into the inner wall gap of the ladle groove 2. At the same time, if too much water vapor is generated, it will easily cause the generation of cavity bubbles in the molten iron, resulting in an increase in the voltage difference between the metal end 3 and the anode carbon block 1.

[0031] In step S3, the normal distribution rate method during molten iron pouring is as follows: The pouring rate of pouring the molten iron into the ladle groove 2 shows that the pouring rates in the initial stage and the end stage are higher than the pouring rate in the middle stage. Regarding the description of this normal distribution pouring rate above, no more explanations will be given here.

[0032] The stratification area division method in step S2 includes the following steps: S21, input the standard size of the ladle groove 2 in the anode carbon block 1 into the integrated control system. The integrated control system processes the imported standard size of the ladle groove 2 and, according to the basic heat conduction equation: ; Calculate the stratification area information for the standard size in the ladle groove 2, where, is the temperature, which changes with time t and spatial position. In the formula, , where is the thermal diffusivity, is the thermal conductivity, is the density, is the specific heat capacity, is the Laplace operator of the temperature field, used to describe the temperature gradient change; S22, the integrated control system transmits the analyzed stratification area information of the ladle groove 2 to the conveying equipment for molten iron pouring, so that the conveying equipment performs molten iron pouring operations according to the information transmitted by the integrated control system.

[0033] Since the sizes for regional division are different for the ramming bowl grooves 2 of the anode carbon blocks 1 with different sizes and depths, and for the basic heat conduction formula, calculations can be performed based on the heat conductivities of the molten iron and the anode carbon blocks 1 and the Laplace operator of the temperature field to determine the base sizes suitable for regional size division in the ramming bowl grooves 2 with different sizes and depths, thus facilitating the molten iron heat capacity connection operation between the metal ends 3 and the anode carbon blocks 1 of different size specifications.

[0034] The way of overflowing molten iron perfusion in the step S6 is as follows: The molten iron is perfused through the conveying equipment close to the metal end 3, so that the molten iron flows and extends outward with the metal end 3 as the center, and the molten iron is perfused in contact with the water at different angular positions of the metal end 3, so that the molten iron effectively surrounds the metal end 3 and overflows to contact the end face of the anode carbon block 1.

[0035] A finished product of the anode carbon block 1 of a production method for reducing the iron-carbon voltage drop of the anode carbon block 1: It includes the anode carbon block 1 and the metal end 3. The ramming bowl groove 2 of the anode carbon block 1 is connected to the metal end 3 through molten iron perfusion, and the perfused molten iron forms a conical radial structure at the position of the metal end 3, so as to reduce the voltage difference between the two while achieving the purpose of effectively fixing the metal end 3 and the anode carbon block 1.

[0036] The inner end face of the ramming bowl groove 2 is a non-granular end face, and the end face gaps on the non-granular end face are tightly filled with the perfused molten iron. After the molten iron perfusion is carried out by the above method, the metallic iron in the ramming bowl groove 2 is effectively distributed and permeated in the gaps of the ramming bowl groove 2, thereby minimizing the voltage difference between the anode carbon block 1 and the metal end 3 to ensure that the produced anode carbon block 1 can be effectively used as the positive electrode end of the electrolytic cell.

[0037] Therefore, a production method for reducing the iron-carbon voltage drop of the anode carbon block 1 and the finished product of the anode carbon block 1 can ensure that after the anode carbon block 1 produced by using this production method is connected to the positive electrode end of the electrolytic cell, there will be no voltage difference problems caused by loose or insecure connection positions, ensuring 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 and enable the electrolytic cell to fully exert its electrolysis function.

Claims

1. A production method for reducing the iron-carbon voltage drop of anode carbon blocks, characterized in that, Including the following steps: S1. Use a grinding device to grind the flatness of the ramming bowl groove of the anode carbon block, so as to level and clean the attaching end surface in the ramming bowl groove. After the flatness is completed, clean the grinding waste in the ramming bowl groove and adhered to the attaching end surface; S2. Use a fixing device to fix the relative position between the metal end of the electrolytic cell and the ramming bowl groove of the anode carbon block. Then, layer the ramming bowl groove of the anode carbon block according to the depth dimension, and divide the layering area according to the depth layering information in different ramming bowl grooves: A, B, ……, N - 1, N, and transmit the division information to the integrated control system; S3. After the integrated control system receives the layered areas divided in the ramming bowl groove, use a conveying device to pour molten iron that has been calcined and continuously maintained at a high temperature into the ramming bowl groove at a normal distribution rate until the molten iron pouring operation in area A of step S2 is completed; S4. When the surface of the molten iron in area A is in the initial crystallization state, pour molten iron into area B in the ramming bowl groove again at a normal distribution rate until area B is completely covered with molten iron; S5. Sequentially perform molten iron pouring on the area divisions of the ramming bowl groove in step S2. At the same time, the pouring requirement needs to be carried out at a normal distribution rate. And when pouring molten iron into adjacent divided areas, the surface of the molten iron in the previously poured molten iron layered area needs to be in the initial crystallization state; S6. When the molten iron is poured into area N of the ramming bowl groove, wait until the surface of the molten iron in area N is in the initial crystallization state, and then continue to pour molten iron into the ramming bowl groove, so that the molten iron overflows the ramming bowl groove and spreads and adheres to the end surface of the anode carbon block around the upper end of the ramming bowl groove until the poured molten iron is completely cooled, thus completing the molten iron pouring operation.

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

3. The production method for reducing the iron-carbon voltage drop of anode carbon blocks according to claim 1, wherein In step S3, the normal distribution rate method during molten iron pouring is: The pouring rate of pouring molten iron into the ramming bowl groove shows that the pouring rates in the initial stage and the end stage are higher than the pouring rate in the middle stage.

4. The production method for reducing the iron-carbon voltage drop of anode carbon blocks according to claim 1, characterized in that, The layering area division method in step S2 includes the following steps: S21. Input the standard size of the ramming bowl groove in the anode carbon block into the integrated control system. The integrated control system processes the imported standard size of the ramming bowl groove and according to the basic heat conduction equation: ； Calculate the layering area information for the standard size in the ramming bowl groove, Among them, is the temperature, which changes with time t and spatial position. In the formula, , where is the thermal diffusivity, is the thermal conductivity, is the density, is the specific heat capacity, is the Laplacian operator of the temperature field, used to describe the change of temperature gradient; S22. The integrated control system transmits the analyzed ramming bowl groove layering area information to the conveying device for molten iron pouring, so that the conveying device performs the molten iron pouring operation according to the information transmitted by the integrated control system.

5. The production method for reducing the iron-carbon voltage drop of anode carbon blocks according to claim 1, characterized in that, The molten iron pouring overflow method in step S6 is: Pour the molten iron against the metal end through a conveying device, so that the molten iron flows and extends outward with the position of the metal end as the center, and pour the molten iron against the water at different angular positions 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.

6. A finished anodic carbon block is prepared by the production method for reducing the iron-carbon voltage drop of an anodic carbon block according to any one of claims 1-5, and is characterized in that, It includes an anode carbon block and a metal end. The ramming bowl groove of the anode carbon block is connected to the metal end through molten iron pouring, and the poured molten iron has a conical radial structure at the position of the metal end.

7. The finished product of an anode carbon block according to claim 6, characterized in that, The inner end face of the ramming bowl groove is a non-granular end face, and the end face gap on the non-granular end face is tightly filled with the poured molten iron.

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