A new titanium slag electric furnace lining structure and slag hanging method

Abstract

A new titanium slag electric furnace lining structure and slag hanging method, the lining structure comprises from bottom to top dead iron zone structure, live iron zone structure, titanium slag zone structure and radiation zone structure, the dead iron zone structure and the radiation zone structure each comprises a cylindrical brick, the live iron zone structure and the titanium slag zone structure each comprises a brick, a brick wall and a groove arranged between the brick and the brick wall, and the brick, the groove and the brick wall are annular structures, the sum of the thicknesses of the brick, the groove and the brick wall of the live iron zone structure is equal to the thickness of the brick of the dead iron zone structure, the sum of the thicknesses of the brick, the groove and the brick wall of the titanium slag zone structure is equal to the thickness of the brick of the live iron zone structure, and the thickness of the brick of the radiation zone structure is 80% to 90% of the thickness of the brick of the titanium slag zone structure.The titanium slag electric furnace lining structure and slag hanging method have the characteristics of saving refractory materials, quickly forming a slag hanging layer and simple maintenance, can effectively reduce the electric furnace construction and maintenance cost, and improve the service life of the titanium slag electric furnace.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of titanium slag smelting, in particular to a new titanium slag electric furnace lining structure and a slag hanging method. BACKGROUND

[0002] Titanium slag production is an important basis for the development of the titanium industry chain. In recent years, with the development of the domestic titanium industry, the demand for high-quality titanium raw materials has increased year by year. Large-scale titanium slag electric furnaces (installed power > 25 MVA) have rapidly developed in China, and new and expanded projects have emerged. However, there is little research on the structure of titanium slag electric furnaces in China. The industry is developing rapidly but is highly homogenized, and technological progress is slow. The electric furnace is the basic equipment for titanium slag smelting, and the service life and stability of the furnace lining are directly related to the safety and production efficiency of titanium slag production. Due to the characteristics of high temperature and corrosion, it is difficult for refractory materials to be used stably for a long time. The slag hanging layer is the most effective method to protect the titanium slag furnace lining, but how to form a stable slag hanging layer has always been a problem in the industry.

[0003] Therefore, there is room for improvement in forming a stable slag hanging layer in the electric furnace. SUMMARY

[0004] In view of the deficiencies in the prior art, the purpose of the present application is to provide a new titanium slag electric furnace lining structure and a slag hanging method to solve the technical problems of difficulty in hanging slag for newly built titanium slag electric furnaces and short service life of the furnace lining.

[0005] To achieve the above-mentioned purpose, the technical solution provided by the present application is as follows:

[0006] A new titanium slag electric furnace lining structure, comprising a dead iron zone structure, a live iron zone structure, a titanium slag zone structure and a radiation zone structure from bottom to top, the dead iron zone structure and the radiation zone structure each comprising a cylindrical brick body, the live iron zone structure and the titanium slag zone structure each comprising a brick body, a brick wall and a groove arranged between the brick body and the brick wall, and the brick body, the groove and the brick wall are all annular structures, the sum of the thicknesses of the brick body, the groove and the brick wall of the live iron zone structure is equal to the thickness of the brick body of the dead iron zone structure, the sum of the thicknesses of the brick body, the groove and the brick wall of the titanium slag zone structure is equal to the thickness of the brick body of the live iron zone structure, and the thickness of the brick body of the radiation zone structure is 80% to 90% of the thickness of the brick body of the titanium slag zone structure.

[0007] In some embodiments, the titanium slag zone structure comprises, from bottom to top, a first titanium slag zone structure, a second titanium slag zone structure and a third titanium slag zone structure, each of the first titanium slag zone structure, the second titanium slag zone structure and the third titanium slag zone structure comprises a brick body, a brick wall and a groove arranged between the brick body and the brick wall, and the brick body, the groove and the brick wall are annular structures, the sum of the thicknesses of the brick body, the groove and the brick wall of the first titanium slag zone structure is equal to the thickness of the brick body of the live metal zone structure, the sum of the thicknesses of the brick body, the groove and the brick wall of the second titanium slag zone structure is equal to the thickness of the brick body of the first titanium slag zone structure, the sum of the thicknesses of the brick body, the groove and the brick wall of the third titanium slag zone structure is equal to the thickness of the brick body of the second titanium slag zone structure, and the thickness of the brick body of the radiation zone structure is equal to 80% to 90% of the thickness of the brick body of the third titanium slag zone structure.

[0008] In some embodiments, the height of the brick body and the brick wall of the live metal zone structure is the same, and the height of the brick body and the brick wall of each of the first titanium slag zone structure, the second titanium slag zone structure and the third titanium slag zone structure is the same.

[0009] In some embodiments, the thickness of the dead metal zone structure is controlled to be 1000 mm to 1500 mm, and the thickness of the brick body of the live metal zone structure is 80% to 90% of the thickness of the brick body of the dead metal zone structure.

[0010] In some embodiments, the height of the brick body and the brick wall of each of the first titanium slag zone structure, the second titanium slag zone structure and the third titanium slag zone structure is equal and is 400 mm to 800 mm.

[0011] In some embodiments, the thickness of the brick body of the first titanium slag zone structure is 80% to 90% of the thickness of the brick body of the live metal zone structure, the thickness of the brick body of the second titanium slag zone structure is 80% to 90% of the thickness of the brick body of the first titanium slag zone structure, and the thickness of the brick body of the third titanium slag zone structure is 80% to 90% of the thickness of the brick body of the second titanium slag zone structure.

[0012] In some embodiments, the height of the brick body and the brick wall of each of the live metal zone structure, the first titanium slag zone structure, the second titanium slag zone structure and the third titanium slag zone structure is equal and is 400 mm to 800 mm, and the thickness of the brick wall of each of the live metal zone structure and the first titanium slag zone structure, the second titanium slag zone structure and the third titanium slag zone structure is 65 mm.

[0013] A slag hanging method of the new titanium slag electric furnace lining structure described above, comprising the following steps:

[0014] Step 1: initial charging, loading iron materials in the dead metal zone structure, then loading a mixture of titanium concentrate and reducing agent above the iron materials until the upper surface of the mixture reaches half the height of the live metal zone structure, and finally loading reducing agent;

[0015] Step 2: fill the powdery titanium slag into all the grooves;

[0016] Step 3: send power to the furnace until a titanium slag pool is formed in the furnace, analyze the grade of the titanium slag in the titanium slag pool by sampling, and control the grade of the titanium slag in the titanium slag pool;

[0017] Step 4: increase the temperature of the titanium slag pool, add the reducing agent from the center of the titanium slag pool at one time, stop power supply and cool down when the height of the foaming slag reaches the upper limit of the titanium slag zone structure, and fill the remaining area of the groove naturally during the process of the titanium slag liquid level descending;

[0018] Step 5: repeat Step 4 until the grooves are filled and a stable slag layer slope is formed above the grooves, and the hanging slag is ended when the overall thickness of the slag layer reaches the set value.

[0019] In some embodiments, in Step 1, the height of the loaded reducing agent in the titanium slag electric furnace lining structure above the mixed materials is 50mm-300mm, and the filling amount of the powdery titanium slag is 30%-60% of the volume of the groove.

[0020] In some embodiments, in Step 3, the titanium dioxide content in the titanium slag pool is controlled to be 76%-80%, and the set value of the overall thickness of the slag layer in Step 5 is 600mm.

[0021] The beneficial effects of the present application are:

[0022] The new titanium slag electric furnace lining structure and the hanging slag method of the present application form a hanging slag layer attachment base through the special-shaped lining with different lining heights, and form a rapid formation and stable control method of the hanging slag layer in combination with a specific feeding and power supply system. The titanium slag electric furnace lining structure and the hanging slag method of the present application have the characteristics of saving refractory materials, rapidly forming a hanging slag layer, and simple maintenance, can effectively reduce the construction and maintenance cost of the electric furnace, and improve the service life of the titanium slag electric furnace. The hanging slag method of the present application has a great guiding effect on the newly built titanium slag electric furnace, and has a certain popularization and application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a cross-sectional single-side schematic view of the new titanium slag electric furnace lining structure of the present application. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the present application more clear and explicit, the present application will be further described in detail below in combination with embodiments and drawings. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0025] The present application provides a new titanium slag electric furnace lining structure, as shown in Figure 1As shown, the structure includes, from bottom to top, a dead iron zone structure 1, a live iron zone structure 2, a titanium slag zone structure 3, and a radiation zone structure 4. The dead iron zone structure 1 and the radiation zone structure 4 each include a cylindrical brick body. The live iron zone structure 2 and the titanium slag zone structure 3 each include a brick body, a brick wall, and a groove arranged between the brick body and the brick wall, and the brick body, the groove, and the brick wall are annular structures. The sum of the thicknesses of the brick body, the groove, and the brick wall of the live iron zone structure 2 is equal to the thickness of the brick body of the dead iron zone structure 1. The sum of the thicknesses of the brick body, the groove, and the brick wall of the titanium slag zone structure 3 is equal to the thickness of the brick body of the live iron zone structure 2. The thickness of the brick body of the radiation zone structure 4 is 80% to 90% of the thickness of the brick body of the titanium slag zone structure 3. The outer sides of the dead iron zone structure 1, the live iron zone structure 2, the titanium slag zone structure 3, and the radiation zone structure 4 are aligned and tightly adhere to the inner side of a furnace shell (not shown). The thickness of the brick body of the radiation zone structure 4 being 80% to 90% of the thickness of the brick body of the titanium slag zone structure 3 means that the outer side of the radiation zone structure 4 is aligned with the outer side of the titanium slag zone structure 3, and the thickness of the brick body of the radiation zone structure 4 extending inward along the thickness direction of the brick body of the titanium slag zone structure 3 above the brick body of the titanium slag zone structure 3 is equal to 80% to 90% of the thickness of the brick body of the titanium slag zone structure 3.

[0026] In some embodiments, the height of the brick body and the brick wall of the live iron zone structure 2 is the same, and the height of the brick body and the brick wall of the titanium slag zone structure 3 is the same.

[0027] In some embodiments, the height of the titanium slag zone structure 3 is determined according to the thickness of the titanium slag layer in the smelting process, and the thickness of the titanium slag layer is 1000 mm to 2500 mm.

[0028] In some embodiments, the titanium slag zone structure 3 includes, from bottom to top, a first titanium slag zone structure 31, a second titanium slag zone structure 32, and a third titanium slag zone structure 33. Each of the first titanium slag zone structure 31, the second titanium slag zone structure 32, and the third titanium slag zone structure 33 includes a brick body, a brick wall, and a groove arranged between the brick body and the brick wall, and the brick body, the groove, and the brick wall are annular structures. The sum of the thicknesses of the brick body, the groove, and the brick wall of the first titanium slag zone structure 31 is equal to the thickness of the brick body of the live iron zone structure 2. The sum of the thicknesses of the brick body, the groove, and the brick wall of the second titanium slag zone structure 32 is equal to the thickness of the brick body of the first titanium slag zone structure 31. The sum of the thicknesses of the brick body, the groove, and the brick wall of the third titanium slag zone structure 33 is equal to the thickness of the brick body of the second titanium slag zone structure 32. The thickness of the brick body of the radiation zone structure 4 is equal to 80% to 90% of the thickness of the brick body of the third titanium slag zone structure 33.

[0029] In some embodiments, the height of the brick body and the brick wall of the live iron zone structure 2 is the same, and the height of the brick body and the brick wall of the titanium slag zone structure 3 is the same.

[0030] In some embodiments, the dead iron zone structure 1 is located below the tapping hole 5, the live iron zone structure 2 is located between the tapping hole 5 and the slag hole 6, the titanium slag zone structure 3 is located above the slag hole 6, and the radiation zone structure 4 is located above the titanium slag zone structure 3 until the position of the furnace cover.

[0031] In some embodiments, the dead iron zone structure 1 is built in a straight cylinder type, the thickness of the dead iron zone structure 1 is controlled to be 1000mm-1500mm, and the dead iron zone structure 1 is entirely built using refractory bricks.

[0032] In some embodiments, the thickness of the brick body of the live iron zone structure 2 is equal to the thickness of the brick body of the dead iron zone structure 1, and the thickness of the brick body of the live iron zone structure 2 is 80%-90% of the thickness of the brick body of the dead iron zone structure 1. The thickness of the brick body of the live iron zone structure 2 being 80%-90% of the thickness of the brick body of the dead iron zone structure 1 means that the outer side of the live iron zone structure 2 is aligned with the outer side of the dead iron zone structure 1, and the thickness of the brick body of the live iron zone structure 2 extending inward along the thickness direction of the brick body of the dead iron zone structure 1 above the brick body of the dead iron zone structure 1 is equal to 80%-90% of the thickness of the brick body of the dead iron zone structure 1.

[0033] In some embodiments, the height of the brick body and the brick wall of the live iron zone structure 2 are equal, and the height is 400mm-800mm.

[0034] In some embodiments, the height of the brick body and the brick wall of each of the first titanium slag zone structure 31, the second titanium slag zone structure 32, and the third titanium slag zone structure 33 are equal, and the height of the brick body and the brick wall of each of the first titanium slag zone structure 31, the second titanium slag zone structure 32, and the third titanium slag zone structure 33 is 400mm-800mm.

[0035] In some embodiments, the thickness of the brick body, the groove, and the brick wall of the first titanium slag zone structure 31 is equal to the thickness of the brick body of the live iron zone structure 2, and the thickness of the brick body of the first titanium slag zone structure 31 is 80%-90% of the thickness of the brick body of the live iron zone structure 2; the thickness of the brick body, the groove, and the brick wall of the second titanium slag zone structure 32 is equal to the thickness of the brick body of the first titanium slag zone structure 31, and the thickness of the brick body of the second titanium slag zone structure 32 is 80%-90% of the thickness of the brick body of the first titanium slag zone structure 31; the thickness of the brick body, the groove, and the brick wall of the third titanium slag zone structure 33 is equal to the thickness of the brick body of the second titanium slag zone structure 32, and the thickness of the brick body of the third titanium slag zone structure 33 is 80%-90% of the thickness of the brick body of the second titanium slag zone structure 32. Here, the outer sides of the adjacent two structures are aligned as the reference, and the thickness of the brick body of the upper structure is 80%-90% of the thickness of the brick body of the adjacent lower structure. The titanium slag zone structure 3 of the present application adopts a setback building method.

[0036] In some embodiments, the thickness of the brick walls of the live iron zone structure 2, the first titanium slag zone structure 31, the second titanium slag zone structure 32, and the third titanium slag zone structure 33 are the same. The thickness of the brick walls of the live iron zone structure 2, the first titanium slag zone structure 31, the second titanium slag zone structure 32, and the third titanium slag zone structure 33 are all 65mm.

[0037] In some embodiments, the radiation zone structure 4 is built using straight cylinder masonry.

[0038] The present application provides a new method for hanging slag of a titanium slag electric furnace lining structure, comprising the following steps:

[0039] Step 1: initial charging, iron material is loaded in the dead iron zone structure 1, then a mixture of titanium concentrate and reducing agent is loaded above the iron material until the upper surface of the mixture reaches half the height of the live iron zone structure 2, and finally reducing agent is loaded;

[0040] Step 2: fill the grooves with powdered titanium slag;

[0041] Step 3: send power to heat the furnace until a titanium slag pool is formed in the furnace, sample and analyze the grade of the titanium slag in the titanium slag pool, and control the grade of the titanium slag in the titanium slag pool;

[0042] Step 4: increase the temperature of the titanium slag pool, add reducing agent from the center of the titanium slag pool at one time, stop power when the height of the foamed slag reaches the upper limit of the titanium slag zone structure 3, and cool down, and naturally fill the remaining area of the groove during the process of the titanium slag level dropping;

[0043] Step 5: repeat step 4 until the groove is filled and a stable slag hanging layer slope is formed above it, and end the slag hanging when the overall thickness of the slag hanging layer reaches the set value.

[0044] In some embodiments, in step 1, the iron material loaded in the dead iron zone structure 1 accounts for 80% of the internal volume of the dead iron zone structure 1, and the iron material can be iron powder or iron block. The height of the reducing agent loaded finally in the titanium slag electric furnace lining structure above the mixture is 50mm-300mm.

[0045] In some embodiments, in step 2, the grade of the filled powdered titanium slag is greater than or equal to the grade of the titanium slag product to be produced, and the filling amount of the powdered titanium slag is 30%-60% of the volume of the groove.

[0046] In some embodiments, in step 3, the grade of the titanium slag in the titanium slag pool is controlled to be 1-2 percentage points higher than the target product grade. In some embodiments, in step 3, the titanium dioxide content in the titanium slag pool is controlled to be 76%-80%.

[0047] In some embodiments, in step 4, the temperature of the titanium slag bath is increased to 1680-1720℃ by supplying a large current (80%-100% of the rated current), and the amount of reducing agent added is 500-1000 kg.

[0048] In some embodiments, the set value of the overall thickness of the slag layer in step 5 is 600 mm.

[0049] One embodiment of the new furnace lining structure of the titanium slag electric furnace of the present application is a furnace lining structure of a certain 33 MVA titanium slag electric furnace, which comprises, from bottom to top, a dead iron zone structure 1, a live iron zone structure 2, a titanium slag zone structure 3, and a radiation zone structure 4. The height of the dead iron zone structure 1 is 1000 mm, and the thickness of the brick body of the dead iron zone structure 1 is 1400 mm. The height of the live iron zone structure 2 is 500 mm, and the brick body, groove, and brick wall of the live iron zone structure 2 are all annular structures, the sum of the thicknesses of the brick body, groove, and brick wall is 1400 mm, the thickness of the brick body of the live iron zone structure 2 is 90% of the thickness of the brick body of the dead iron zone structure 1 (i.e. 1260 mm), the groove thickness is 75 mm, and the height of the brick wall is 500 mm and the thickness is 65 mm. The height of the first titanium slag zone structure 31 is 600 mm, and the brick body, groove, and brick wall of the first titanium slag zone structure 31 are all annular structures, the sum of the thicknesses of the brick body, groove, and brick wall is equal to 1260 mm, the thickness of the brick body of the first titanium slag zone structure 31 is 85% of the thickness of the brick body of the live iron zone structure 2 (i.e. 1071 mm), the groove thickness is 124 mm, and the height of the brick wall is 600 mm and the thickness is 65 mm. The height of the second titanium slag zone structure 32 is 600 mm, and the brick body, groove, and brick wall of the second titanium slag zone structure 32 are all annular structures, the sum of the thicknesses of the brick body, groove, and brick wall is equal to 1071 mm, the thickness of the brick body of the second titanium slag zone structure 32 is 83% of the thickness of the brick body of the first titanium slag zone structure 31 (i.e. 889 mm), the groove thickness is 117 mm, and the height of the brick wall is 600 mm and the thickness is 65 mm. The height of the third titanium slag zone structure 33 is 600 mm, and the brick body, groove, and brick wall of the third titanium slag zone structure 33 are all annular structures, the sum of the thicknesses of the brick body, groove, and brick wall is equal to 889 mm, the thickness of the brick body of the third titanium slag zone structure 33 is 80% of the thickness of the brick body of the second titanium slag zone structure 32 (i.e. 711 mm), the groove thickness is 113 mm, and the height of the brick wall is 600 mm and the thickness is 65 mm. The thickness of the brick body of the radiation zone structure 4 is 90% of the thickness of the brick body of the third titanium slag zone structure 33 (i.e. 640 mm), and the height of the radiation zone structure 4 is 2000 mm.

[0050] The bricklaying method of the new furnace lining structure of the titanium slag electric furnace of the above embodiment comprises the following steps:

[0051] First, the straight cylinder type brickwork dead iron zone structure 1 is adopted, the brickwork height of the dead iron zone structure 1 is 1000mm, and the brickwork thickness is 1400mm.

[0052] Secondly, the brick body of the live iron zone structure 2 is aligned and built above the dead iron zone structure 1 and outside the dead iron zone structure 1, the brickwork height is 500mm, the brickwork thickness is 90% of the brickwork thickness of the dead iron zone structure 1 (i.e. 1260mm), and then the brick wall is built vertically upward along the inner wall of the brick body of the dead iron zone structure 1, the brickwork height is 500mm, the brickwork thickness is 65mm, and the groove thickness is 75mm.

[0053] Secondly, the brick body of the first titanium slag zone structure 31 is aligned and built above the live iron zone structure 2 and outside the live iron zone structure 2, the brickwork height is 600mm, the brickwork thickness is 85% of the brickwork thickness of the live iron zone structure 2 (i.e. 1071mm), and then the brick wall is built vertically upward along the inner wall of the brick body of the live iron zone structure 2, the brickwork height is 600mm, the brickwork thickness is 65mm, and the groove thickness is 124mm.

[0054] Secondly, the brick body of the second titanium slag zone structure 32 is aligned and built above the first titanium slag zone structure 31 and outside the first titanium slag zone structure 31, the brickwork height is 600mm, the brickwork thickness is 83% of the brickwork thickness of the first titanium slag zone structure 31 (i.e. 889mm), and then the brick wall is built vertically upward along the inner wall of the brick body of the first titanium slag zone structure 31, the brickwork height is 600mm, the brickwork thickness is 65mm, and the groove thickness is 117mm.

[0055] Secondly, the brick body of the third titanium slag zone structure 33 is aligned and built above the second titanium slag zone structure 32 and outside the second titanium slag zone structure 32, the brickwork height is 600mm, the brickwork thickness is 80% of the brickwork thickness of the second titanium slag zone structure 32 (i.e. 711mm), and then the brick wall is built vertically upward along the inner wall of the brick body of the second titanium slag zone structure 32, the brickwork height is 600mm, the brickwork thickness is 65mm, and the groove thickness is 113mm.

[0056] Finally, the brick body of the radiation zone structure 4 is aligned and built above the third titanium slag zone structure 33 and outside the third titanium slag zone structure 33, the brickwork height is 2000mm, the brickwork thickness is 90% of the brickwork thickness of the third titanium slag zone structure 33 (i.e. 640mm), and the brickwork of the new titanium slag electric furnace lining structure is completed.

[0057] The slag hanging method of the new titanium slag electric furnace lining structure of the above embodiment is as follows: when initial charging, 80% of the internal volume of the dead iron zone structure 1 is filled with iron powder, then the mixture of titanium concentrate and reducing agent is charged above the iron powder until the upper surface of the mixture reaches half the height of the live iron zone structure 2, and finally 300 mm high reducing agent is charged in the titanium slag electric furnace lining structure above the mixture; the grooves are filled with powdery titanium slag (TiO2 grade ≧80%) with a filling amount of 40% of the groove volume. The furnace is powered until a titanium slag pool is formed in the furnace, the grade of the titanium slag in the titanium slag pool is analyzed, and the grade of the titanium slag in the titanium slag pool is controlled to be TiO2 content 78%. A current of 40000A is used for power supply, the temperature of the titanium slag pool is increased to 1700℃, then 600 kg of reducing agent is added from the center of the titanium slag pool at one time to artificially generate foaming slag. When the height of the foaming slag reaches the upper limit of the titanium slag zone structure 3, power is cut off for cooling, and the remaining area of the groove is naturally filled during the titanium slag liquid level drops. Such repeated operation is performed until the groove is filled and a stable slag hanging layer slope is formed above it, and the hanging slag layer ends when the overall thickness is 600 mm.

[0058] The new titanium slag electric furnace lining structure of the present application is a "stepped gear" titanium slag electric furnace lining structure, which forms a slag hanging layer attachment foundation by building different shaped linings at different lining heights, and quickly forms a stable slag hanging layer and stably controls it during smelting process. It has the characteristics of saving refractory materials, quickly forming a slag hanging layer, and simple maintenance, can effectively reduce the lining and maintenance cost of the electric furnace, and improve the service life of the titanium slag electric furnace. This method has great guiding effect on newly built titanium slag electric furnace and has certain popularization and application prospect. It has important significance for the safe operation of large titanium slag electric furnace and improving production efficiency.

[0059] The above-described embodiments only express the implementation of the present application, which is described in detail and specifically, but it should not be understood as a limitation on the scope of the present application. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application.

Claims

1. A new structure of a furnace lining of a titanium slag electric furnace, characterized in that, The structure comprises from bottom to top a dead iron zone structure, a live iron zone structure, a titanium slag zone structure and a radiation zone structure, the dead iron zone structure and the radiation zone structure each comprise a cylindrical brick body, the live iron zone structure and the titanium slag zone structure each comprise a brick body, a brick wall and a groove arranged between the brick body and the brick wall and the brick body, the groove and the brick wall are annular structures, the sum of the thicknesses of the brick body, the groove and the brick wall of the live iron zone structure is equal to the thickness of the brick body of the dead iron zone structure, the titanium slag zone structure comprises from bottom to top a first titanium slag zone structure, a second titanium slag zone structure and a third titanium slag zone structure, the first titanium slag zone structure, the second titanium slag zone structure and the third titanium slag zone structure each comprise a brick body, a brick wall and a groove arranged between the brick body and the brick wall and the brick body, the groove and the brick wall are annular structures, the sum of the thicknesses of the brick body, the groove and the brick wall of the first titanium slag zone structure is equal to the thickness of the brick body of the live iron zone structure, the sum of the thicknesses of the brick body, the groove and the brick wall of the second titanium slag zone structure is equal to the thickness of the brick body of the first titanium slag zone structure, the sum of the thicknesses of the brick body, the groove and the brick wall of the third titanium slag zone structure is equal to the thickness of the brick body of the second titanium slag zone structure, the thickness of the brick body of the radiation zone structure is equal to 80% to 90% of the thickness of the brick body of the third titanium slag zone structure.

2. The new titanium slag electric furnace lining structure according to claim 1, characterized in that, The heights of the brick body and the brick wall of the live iron zone structure are the same, and the heights of the respective brick body and brick wall of the first titanium slag zone structure, the second titanium slag zone structure and the third titanium slag zone structure are the same.

3. The new titanium slag electric furnace lining structure according to claim 1, characterized in that, The thickness of the dead iron zone structure is controlled to be 1000mm to 1500mm, and the thickness of the brick body of the live iron zone structure is 80% to 90% of the thickness of the brick body of the dead iron zone structure.

4. The new titanium slag electric furnace lining structure according to claim 1, characterized in that, The heights of the respective brick body and brick wall of the first titanium slag zone structure, the second titanium slag zone structure and the third titanium slag zone structure are equal and the heights of the respective brick body and brick wall are 400mm to 800mm.

5. The new titanium slag electric furnace lining structure according to claim 1, characterized in that, The thickness of the brick body of the first titanium slag zone structure is 80% to 90% of the thickness of the brick body of the live iron zone structure, the thickness of the brick body of the second titanium slag zone structure is 80% to 90% of the thickness of the brick body of the first titanium slag zone structure, and the thickness of the brick body of the third titanium slag zone structure is 80% to 90% of the thickness of the brick body of the second titanium slag zone structure.

6. The new titanium slag electric furnace lining structure according to claim 1, characterized in that, The heights of the respective brick body and brick wall of the live iron zone structure, the first titanium slag zone structure, the second titanium slag zone structure and the third titanium slag zone structure are equal and the heights of the respective brick body and brick wall are 400mm to 800mm, and the thicknesses of the brick walls of the live iron zone structure and the first titanium slag zone structure, the second titanium slag zone structure and the third titanium slag zone structure are all 65mm.

7. A method of slag hanging for the new titanium slag electric furnace furnace lining structure according to any one of claims 1 to 6, characterized in that, The structure comprises the following steps: Step 1: initial charging, loading iron materials in the dead iron zone structure, then loading a mixture of titanium concentrate and reducing agent above the iron materials until the upper surface of the mixture reaches half the height of the live iron zone structure, and finally loading the reducing agent; Step 2: filling all the grooves with powdered titanium slag; Step 3: Send power to the furnace until a titanium slag pool is formed in the furnace, analyze the grade of titanium slag in the titanium slag pool by sampling, and control the grade of titanium slag in the titanium slag pool; Step 4: Increase the temperature of the titanium slag pool, add the reducing agent from the center of the titanium slag pool at one time, stop power supply and cool down when the height of the foamed slag reaches the upper limit of the titanium slag zone structure, and fill the remaining area of the groove naturally during the process of the titanium slag liquid level dropping; Step 5: Repeat step 4 until the groove is filled and a stable slag layer slope is formed above it, and the whole thickness of the slag layer reaches the set value to end the slagging.

8. The new method of slag hanging of the electric furnace lining structure of titanium slag according to claim 7, characterized by, In the step 1, the height of the reducing agent loaded in the titanium slag furnace lining structure above the mixture is 50mm-300mm, and the filling amount of the powdery titanium slag is 30%-60% of the volume of the groove.

9. The new method of slag hanging of the electric furnace lining structure of titanium slag according to claim 7, characterized by, In the step 3, the content of titanium dioxide in the titanium slag pool is controlled to be 76%-80%, and the set value of the whole thickness of the slag layer in the step 5 is 600mm.

Images