Combined runner system for casting eight steel ingots through bottom pouring method

Abstract

The utility model relates to a combined runner system for casting eight steel ingots through a bottom pouring method, and belongs to the technical field of steel ingot casting equipment in the metallurgical industry. According to the technical scheme, the central injection pipe combination unit comprises a funnel brick (1) and an injection pipe brick (2) which are combined together up and down; the center brick combination unit comprises a hexagonal six-hole center brick (5), two straight channel runners (3) and four inclined channel runners (4), the two straight channel runners (3) and the four inclined channel runners (4) are communicated with the hexagonal six-hole center brick (5), the two straight channel runners (3) are oppositely arranged, and the four inclined channel runners (4) are oppositely arranged in pairs; the shunting brick combination unit comprises a hexagonal three-hole shunting brick (7) and three shunting runners (6) communicated with the hexagonal three-hole shunting brick (7); the mold bottom brick combination unit comprises a mold bottom runner (8), and a mold bottom tail brick (9) and a mold bottom brick (10) which are communicated with the mold bottom runner (8); the utility model has the beneficial effects of preventing the molten steel from rising irregularly and reducing the weight deviation of the steel ingot.

Description

Technical Field

[0001] The utility model relates to a combined runner system for casting eight ingots by the bottom-pouring method, belonging to the technical field of ingot casting equipment in the metallurgical industry. Background Technique

[0002] At present, the steel market has an increasing demand for special high-alloy and high-value-added steel plates, and the requirements are becoming more and more strict. The single-order weight of special high-alloy and high-value-added steel plates is generally between 8 - 14t.

[0003] In the bottom-pouring method of casting, the height difference of the molten steel is utilized to make the nozzle of the ladle face the center casting tube directly. The molten steel flows along the center casting tube perpendicular to the ground into several branch runners parallel to the ground, and then the combined structure of the tail brick and the mold bottom brick is used to make the molten steel rise into the mold. The bottom-pouring method can meet the requirement of casting multiple ingots simultaneously, and the molten steel flows into the designated mold through the laid runners. Due to the number of branches and the size of the casting car, the distances from the ingot mold to the center casting tube are different, and the rising heights of the molten steel in the mold are different during casting. Therefore, when casting 8 or more ingots simultaneously, it is impossible to ensure that the molten steel levels in each ingot mold are the same. Thus, runners composed of runner bricks with different inner diameters are designed to change the molten steel flow rate in the runner to make it differ very little, so as to meet the requirement of rising evenly when casting 8 ingots simultaneously and satisfy the production demand. Content of the Utility Model

[0004] The purpose of the utility model is to provide a combined runner system for casting eight ingots by the bottom-pouring method, which can avoid uneven rising of the molten steel, reduce the weight deviation of the ingots, and solve the problems existing in the background technique.

[0005] The technical solution of the utility model is as follows:

[0006] A combined runner system for casting eight ingots by the bottom-pouring method includes a middle pouring tube combination unit, a center brick combination unit, a shunt brick combination unit, and a mold bottom brick combination unit;

[0007] The middle pouring tube combination unit includes a funnel brick and a pouring tube brick combined up and down; the center brick combination unit includes a hexagonal six-hole center brick, two straight-groove runners and four inclined-groove runners connected to the hexagonal six-hole center brick. The two straight-groove runners are arranged oppositely, and the four inclined-groove runners are arranged in pairs oppositely; the shunt brick combination unit includes a hexagonal three-hole shunt brick and three shunt runners connected to the hexagonal three-hole shunt brick; the mold bottom brick combination unit includes a mold bottom runner, a mold bottom tail brick and a mold bottom brick connected to the mold bottom runner;

[0008] The middle pouring tube combination unit is one unit, the central brick combination unit is one unit, the flow-dividing brick combination unit is two units, and the mold bottom brick combination unit is eight units. The pouring tube brick in the middle pouring tube combination unit is connected to the hexagonal six-hole central brick in the central brick combination unit. The two straight-groove runner channels in the central brick combination unit are respectively connected to one flow-dividing runner channel in one flow-dividing brick combination unit. The four straight-groove runner channels in the central brick combination unit and the other four flow-dividing runner channels in the two flow-dividing brick combination units are respectively connected to the mold bottom runner channels in the eight mold bottom brick combination units.

[0009] The diameter of the straight-groove runner channel in the central brick combination unit is larger than that of the inclined-groove runner channel. The diameter of the flow-dividing runner channel in the flow-dividing brick combination unit is larger than that of the straight-groove runner channel. The diameter of the mold bottom runner channel in the mold bottom brick combination unit is the same as that of the flow-dividing runner channel.

[0010] The two straight-groove runner channels, the four inclined-groove runner channels in the central brick combination unit, the three flow-dividing runner channels in the flow-dividing brick combination unit package, and the mold bottom runner channels in the mold bottom brick combination unit are built with runner bricks of different diameters and different quantities.

[0011] The inner diameter of the runner brick of the two straight-groove runner channels in the central brick combination unit is 50 mm, and the inner diameter of the runner brick of the four inclined-groove runner channels is 35 mm. The inner diameter of the runner brick of the three flow-dividing runner channels in the flow-dividing brick combination unit package is 60 mm, and the inner diameter of the runner brick of the mold bottom runner channel in the mold bottom brick combination unit is 60 mm.

[0012] The inner diameter of the mold bottom tail brick and the mold bottom brick in the mold bottom brick combination unit is 60 mm.

[0013] The inner diameter of the funnel brick and the pouring tube brick in the middle pouring tube combination unit is 100 mm.

[0014] The beneficial effects of the present utility model are as follows: the structure is simple. By using runner bricks with different inner diameters and different quantities to change the pressure and flow rate of the molten steel flow, the molten steel rises evenly into the ingot mold, meeting the production of ingots with different weights and too many pieces per coil, making the production efficient, stable and safe. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the middle pouring tube combination unit;

[0016] Figure 2 It is a schematic diagram of the central brick combination unit;

[0017] Figure 3 It is a schematic diagram of the flow-dividing brick combination unit;

[0018] Figure 4 It is a schematic diagram of the mold bottom brick combination unit;

[0019] Figure 5This is the top view of the overall assembly of the utility model;

[0020] In the figure: hopper brick 1, pouring tube brick 2, straight groove runner 3, inclined groove runner 4, hexagonal six-hole center brick 5, shunt runner 6, hexagonal three-hole shunt brick 7, mold bottom runner 8, tail brick 9, mold bottom brick 10. Specific embodiments

[0021] The following further illustrates the utility model through examples in conjunction with the accompanying drawings.

[0022] Refer to the attached Figures 1-5 , a combined runner system for casting eight ingots by the bottom-pouring method, comprising a middle-pouring tube combined unit, a center brick combined unit, a shunt brick combined unit, and a mold bottom brick combined unit;

[0023] The middle-pouring tube combined unit comprises a hopper brick 1 and a pouring tube brick 2 combined up and down; the center brick combined unit comprises a hexagonal six-hole center brick 5, two straight groove runners 3 and four inclined groove runners 4 connected to the hexagonal six-hole center brick 5, the two straight groove runners 3 are arranged oppositely, and the four inclined groove runners 4 are arranged in pairs oppositely; the shunt brick combined unit comprises a hexagonal three-hole shunt brick 7 and three shunt runners 6 connected to the hexagonal three-hole shunt brick 7; the mold bottom brick combined unit comprises a mold bottom runner 8, a mold bottom tail brick 9 and a mold bottom brick 10 connected to the mold bottom runner 8;

[0024] The middle-pouring tube combined unit is one unit, the center brick combined unit is one unit, the shunt brick combined unit is two units, the mold bottom brick combined unit is eight units, the pouring tube brick 2 in the middle-pouring tube combined unit is connected to the hexagonal six-hole center brick 5 in the center brick combined unit, the two straight groove runners 3 in the center brick combined unit are respectively connected to one shunt runner 6 in one shunt brick combined unit, and the four straight groove runners 3 in the center brick combined unit and the other four shunt runners 6 in the two shunt brick combined units are respectively connected to the mold bottom runners 8 in the eight mold bottom brick combined units.

[0025] In this embodiment, refer to the attached Figure 1 , 5 , the middle-pouring tube combined unit is at the highest position of the runner system, comprising a hopper brick 1 and a pouring tube brick 2, the inner diameters of the hopper brick 1 and the pouring tube brick 2 are 100 mm, and according to the height of the middle-casting tube, the number of middle-pouring tube bricks used is different. Right below the pouring tube brick 2 is a hexagonal six-hole center brick 5.

[0026] Refer to the attached Figure 2 , 5 , the center brick combined unit comprises two straight groove runners 3, four inclined groove runners 4 and a hexagonal six-hole center brick 5. Each of the four inclined groove runners 4 uses a runner brick with a length of 300 mm and an inner diameter of 35 mm, and the two straight groove runners 3 use two runner bricks with an inner diameter of 50 mm.

[0027] Refer to the attached Figure 3 、 5 The shunting brick combination unit includes three shunting runners 6 and a hexagonal three-hole shunting brick 7. The inner diameter of the runner bricks of the three shunting runners 6 is 60 mm.

[0028] Refer to the attached Figure 4 、 5 The bottom mold brick combination unit includes a bottom mold runner 8, a tail brick 9 and a bottom mold brick 10, adopting a runner brick with an inner diameter of 60 mm + a tail brick with an inner diameter of 60 mm + a bottom mold brick of 60 mm, directly below the ingot mold.

[0029] Figures 1-5 Four diagonal runner channels 4 and four shunting runner channels 6 are respectively lengthened by 300 mm, with a runner brick with an inner diameter of 60 mm ( Figure 4 the bottom mold runner 8 in Figure 3 ), a tail brick 9 with a length of 250 mm and an inner diameter of 60 mm + a bottom mold brick 10; two straight runner channels 3 with a runner brick with an inner diameter of 60 mm (

[0030] By combining Figures 1-5 these components, a runner system can be combined that extends from top to bottom and from the center to the surroundings, as shown in Figure 5 , to meet the requirements of the upcasting method for casting 8 or more ingots with a flat rise, and to eliminate the problem of uneven rise of the molten steel in the ingot mold due to different distances. The runner bricks with different inner diameters are arranged around the central brick, aiming to generate different flow rates of the molten steel here, facilitating the same flow rate of the molten steel inside the subsequent runners and meeting the requirement that the flow rate and pressure of the molten steel at the 8 bottom mold bricks are the same or differ very little.

[0031] According to the different lengths of the runners, the inner diameter size of the runner bricks and the number of bricks can be adjusted to change the pressure and flow rate of the steel flow.

Claims

1. A combined channel system for casting eight steel ingots by pouring method, characterized in that: It includes a center injection pipe assembly unit, a center brick assembly unit, a diversion brick assembly unit and a mold bottom brick assembly unit; The central injection pipe assembly unit comprises a funnel brick (1) and an injection pipe brick (2) assembled together in an upper and lower manner; the center brick assembly unit comprises a hexagonal six-hole center brick (5) and two straight groove soup channels (3) and four oblique groove soup channels (4) connected to the hexagonal six-hole center brick (5), the two straight groove soup channels (3) being arranged opposite to each other, and the four oblique groove soup channels (4) being arranged opposite to each other in pairs; the diversion brick assembly unit comprises a hexagonal three-hole diversion brick (7) and three diversion soup channels (6) connected to the hexagonal three-hole diversion brick (7); the mold bottom brick assembly unit comprises a mold bottom soup channel (8) and a mold bottom tail brick (9) and a mold bottom brick (10) connected to the mold bottom soup channel (8); The central injection pipe assembly unit is one unit, the central brick assembly unit is one unit, the diversion brick assembly unit is two units, and the mold bottom brick assembly unit is eight units. The injection pipe brick (2) in the central injection pipe assembly unit is connected to the hexagonal six-hole central brick (5) in the central brick assembly unit. The two straight groove soup channels (3) in the central brick assembly unit are respectively connected to one diversion soup channel (6) in one diversion brick assembly unit. The four straight groove soup channels (3) in the central brick assembly unit and the four diversion soup channels (6) in the two diversion brick assembly units are respectively connected to the mold bottom soup channels (8) in the eight mold bottom brick assembly units.

2. The combined channel system for casting eight steel ingots by pouring method according to claim 1, characterized in that: The diameter of the straight groove channel (3) in the central brick assembly unit is greater than the diameter of the oblique groove channel (4), the diameter of the diverter channel (6) in the diverter brick assembly unit is greater than the diameter of the straight groove channel (3), and the diameter of the mold bottom channel (8) in the mold bottom brick assembly unit is the same as the diverter channel (6).

3. The combined channel system for casting eight steel ingots by pouring method according to claim 2, characterized in that: The two straight groove soup channels (3) and four oblique groove soup channels (4) in the central brick assembly unit, the three diverter soup channels (6) in the diverter brick assembly unit package, and the mold bottom soup channel (8) in the mold bottom brick assembly unit are built by bricks with different diameters and different numbers.

4. The combined channel system for casting eight steel ingots by pouring method according to claim 3, characterized in that: The inner diameter of the soup channel bricks of the two straight groove soup channels (3) in the central brick assembly unit is 50 mm, and the inner diameter of the soup channel bricks of the four oblique groove soup channels (4) is 35 mm; the inner diameter of the soup channel bricks of the three diverter soup channels (6) in the diverter brick assembly unit package is 60 mm, and the inner diameter of the soup channel bricks of the mold bottom soup channel (8) in the mold bottom brick assembly unit is 60 mm.

5. The combined channel system for casting eight steel ingots by pouring method according to claim 4, characterized in that: The inner diameters of the mold bottom tail brick (9) and the mold bottom brick (10) in the mold bottom brick assembly unit are 60 mm.

6. The combined channel system for casting eight steel ingots by pouring method according to claim 1, characterized in that: The inner diameters of the funnel brick (1) and the injection pipe brick (2) in the central injection pipe assembly unit are 100 mm.

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