Secondary slag removal device for casting molten iron

Abstract

The utility model discloses a secondary slag removal device for casting molten iron, and relates to the technical field related to casting. The device comprises a fixed box, a linear motor rotor, a protective cover and a slag beating shovel, a driving motor is fixed to the bottom in the fixed box, a transmission shaft is fixed to the output end of the driving motor and movably connected to the bottom of the fixed box in a penetrating mode, and a driven shaft is inserted into the bottom, on one side of the transmission shaft, of the fixed box in a penetrating mode; slag beating shovels are fixed to the bottom ends of the transmission shaft and the driven shaft, sieve holes are evenly formed in the bottoms of the slag beating shovels in a penetrating mode, a protection cover is fixed to the bottom of the fixed box, and a linear motor rotor is arranged above the fixed box. Through the arrangement of the fixed box, the linear motor rotor, the protective cover and the slag beating shovel, the problems that in the molten iron slag beating process, the protective area for a driving structure is not high enough, and molten iron is prone to being taken away during molten iron slag beating, so that molten iron is wasted are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to casting, and particularly relates to a secondary slag removing device for casting molten iron. Background Art

[0002] Molten iron and slag are very important components in the steel smelting process. Molten iron refers to the liquid iron obtained after the reduction reaction of iron ore in the blast furnace or other smelting equipment, while slag is a by-product containing non-metallic oxides produced in the same process. In the smelting process, effective management of the separation of molten iron and slag is of great significance for improving steel quality, energy conservation and emission reduction, and protecting equipment. Molten iron slag removal refers to the technology of removing impurities and slag from molten iron during the steelmaking process. This process is crucial to improving steel quality and production efficiency, but it still has the following disadvantages in actual use:

[0003] During the working process, the molten iron is directly slag-removed by the slag-removing device. During the slag-removing process, the temperature of the molten iron is relatively high. During the slag-removing process, the heat is directly transferred to the slag-removing device through gas and heat radiation. During the working process, the slag-removing device does not provide enough protection for the driving structure and the durability is not high enough;

[0004] During the slag beating process of molten iron, the slag in the ladle is directly beaten by a slag beating shovel. During the slag beating process, the slag in the molten iron can directly enter the slag beating shovel, but it is easy to take away the molten iron during the operation, resulting in waste of molten iron. Utility Model Content

[0005] The utility model aims to provide a secondary slag removing device for casting molten iron. By arranging a fixed box, a linear motor mover, a protective cover and a slag removing shovel, the utility model solves the problem that the driving structure is not protected high enough during the molten iron slag removing process, and the molten iron is easily carried away during the slag removing process, resulting in waste of molten iron.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a secondary slag removal device for casting molten iron, comprising a fixed box, a linear motor mover, a protective cover and a slag removal shovel. A driving motor is fixed at the bottom of the fixed box, a transmission shaft is fixed at the output end of the driving motor, the transmission shaft is movably connected to the bottom of the fixed box through, a driven shaft is inserted through the bottom of the fixed box on one side of the transmission shaft, a slag removal shovel is fixed to the bottom ends of the transmission shaft and the driven shaft, sieve holes are evenly penetrated at the bottom of the slag removal shovel, a protective cover is fixed to the bottom of the fixed box, a linear motor mover is arranged above the fixed box, when working, the driving motor is fixed therein through the fixed box, when the linear motor mover is working, the hydraulic cylinder is driven to move, the fixed box is driven to move, the heat of the molten iron is protected from the fixed box through the protective cover, and the slag in the molten iron ladle is packaged when the slag removal shovel rotates.

[0008] Furthermore, a driving gear is fixed to the upper part of the circumferential side of the transmission shaft, and a driven gear is fixed to the upper part of the circumferential side of the driven shaft, the driving gear and the driven gear are meshed with each other, the top ends of the driving gear and the driven gear are in contact with the bottom of the fixed box, the driving gear and the driven gear are both arranged in a protective cover, and the transmission shaft is meshed with the driven gear through the driving gear, so that the transmission shaft and the driven shaft rotate in opposite directions.

[0009] Furthermore, a limiting plate is fixed to the top end of the driven shaft, and the bottom end of the limiting plate is in contact with the bottom of the fixed box, and the position of the driven shaft is limited by the limiting plate.

[0010] Furthermore, a linear motor stator is movably connected inside the linear motor mover, a hydraulic cylinder is fixed at the bottom of the linear motor mover, a hydraulic rod is movably connected inside the hydraulic cylinder, and the bottom end of the hydraulic rod is fixed at the top center of the fixed box. When the linear motor mover is working, the linear motor stator cooperates with the support, and the hydraulic cylinder drives the hydraulic rod to drive the fixed box to rise and fall.

[0011] Furthermore, movable holes are symmetrically opened at the bottom of the protective cover, and the transmission shaft and the driven shaft are respectively inserted into the two movable holes, and the protective cover is movably connected to the transmission shaft and the driven shaft through the movable holes.

[0012] Furthermore, the two slag shovels are symmetrically arranged, and the sides and tops of the two slag shovels close to each other are both opened, and the slag is scraped into them by the slag shovels.

[0013] The utility model has the following beneficial effects:

[0014] The utility model solves the problem of insufficient protection of the driving structure during the molten iron slag beating process by arranging a fixed box, a linear motor mover and a protective cover. When the fixed box is arranged above the molten iron ladle, the protective cover prevents hot air from moving directly to the fixed box, effectively preventing damage caused by heat, and the driving motor is enclosed in the fixed box by the fixed box, thereby further protecting the driving motor and reducing the probability of damage to the driving motor.

[0015] The utility model solves the problem that molten iron is easily carried away and causes waste of molten iron by arranging a fixed box and a slag shovel. After the slag shovel enters the molten iron ladle and the two slag shovels are combined, the molten iron falls into the molten iron ladle through the sieve holes after the slag shovel rises, but the slag remains in the slag shovel, so that when the molten iron is slaged, the amount of molten iron carried away by the slag is reduced, thereby reducing the waste of molten iron. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a stereoscopic diagram of the assembly structure of a secondary slag removal device for casting molten iron;

[0018] Figure 2 It is a three-dimensional diagram of the fixed box structure;

[0019] Figure 3 It is a three-dimensional diagram of the linear motor rotor structure;

[0020] Figure 4 It is a three-dimensional diagram of the protective cover structure;

[0021] Figure 5 This is a three-dimensional diagram of the slag shovel structure.

[0022] Reference numerals:

[0023] 1. Fixed box; 101. Driving motor; 102. Transmission shaft; 103. Driving gear; 104. Driven gear; 105. Driven shaft; 106. Limit plate; 2. Linear motor mover; 201. Linear motor stator; 202. Hydraulic cylinder; 203. Hydraulic rod; 3. Protective cover; 301. Movable hole; 4. Slag shovel; 401. Screen hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0025] See also Figure 1-5 The utility model is a secondary slag removal device for casting molten iron, comprising a fixed box 1, a linear motor mover 2, a protective cover 3 and a slag removal shovel 4. A driving motor 101 is fixed at the bottom of the fixed box 1, and the driving motor 101 is enclosed in the fixed box 1. The driving motor 101 drives a transmission shaft 102 to rotate. A transmission shaft 102 is fixed at the output end of the driving motor 101. The driving motor 101 drives the transmission shaft 102 to rotate, thereby driving the slag removal shovel 4 to rotate. The transmission shaft 102 is movably connected to the bottom of the fixed box 1. A driven shaft 105 is inserted through the bottom of the fixed box 1 on one side of the transmission shaft 102. A slag shovel 4 is fixed to the bottom end of the driving shaft 102 and the driven shaft 105. When the driving shaft 102 and the driven shaft 105 rotate in opposite directions, the slag shovel 4 is opened and closed to scrape the slag in the molten iron. The bottom of the slag shovel 4 is evenly penetrated with sieve holes 401. After the molten iron and slag enter through the sieve holes 401, the molten iron leaks into the ladle, and the slag is contained therein. A protective cover 3 is fixed to the bottom of the fixed box 1 to block the heat dissipated in the ladle. A linear motor mover 2 is arranged above the fixed box 1 to drive the fixed box 1 to move when the linear motor mover 2 is working.

[0026] Specifically, a driving gear 103 is fixed to the upper part of the peripheral side of the transmission shaft 102, and a driven gear 104 is fixed to the upper part of the peripheral side of the driven shaft 105. The driving gear 103 and the driven gear 104 are meshed with each other, and the top ends of the driving gear 103 and the driven gear 104 are in contact with the bottom of the fixed box 1. The driving gear 103 and the driven gear 104 are both arranged in the protective cover 3. When working, the driving motor 101 drives the transmission shaft 102 to rotate. When the transmission shaft 102 rotates, the driving gear 103 is driven to rotate, and the driven gear 104 is driven to rotate through the rotation of the driving gear 103, so that when working, the transmission shaft 102 and the driven shaft 105 rotate in opposite directions.

[0027] Furthermore, a limiting plate 106 is fixed to the top of the driven shaft 105 , and the bottom end of the limiting plate 106 contacts the bottom of the fixed box 1 , so that the driven shaft 105 limits the position of the limiting plate 106 through the limiting plate 106 .

[0028] Furthermore, a linear motor stator 201 is movably connected inside the linear motor mover 2, a hydraulic cylinder 202 is fixed at the bottom of the linear motor mover 2, a hydraulic rod 203 is movably connected inside the hydraulic cylinder 202, and the bottom end of the hydraulic rod 203 is fixed at the top center of the fixed box 1. When working, the two ends of the linear motor stator 201 respectively work with the external supporting structure, and the hydraulic cylinder 202 drives the hydraulic rod 203 to rise and fall, and the hydraulic rod 203 drives the fixed box 1 to move.

[0029] Furthermore, movable holes 301 are symmetrically opened at the bottom of the protective cover 3, and the transmission shaft 102 and the driven shaft 105 are respectively inserted into the two movable holes 301. When the protective cover 3 is working, the transmission shaft 102 and the driven shaft 105 are movably connected through the movable holes 301.

[0030] The operation process of this embodiment is as follows: when working, first start the drive motor 101, the drive motor 101 drives the transmission shaft 102 to rotate counterclockwise, so that when the transmission shaft 102 rotates counterclockwise, the two slag shovels 4 rotate counterclockwise to the surface away from the vertical opening to contact each other, start the linear motor mover 2, when the linear motor mover 2 works, it moves on the linear motor stator 201, until the fixed box 1 moves to a suitable position, start the hydraulic cylinder 202, the hydraulic cylinder 202 drives the hydraulic rod 203 to descend, and the fixed box 1 is driven to descend by the hydraulic rod 203, and at the same time, the two slag shovels 4 are driven to enter the liquid surface of the molten iron in the iron ladle by the descent of the fixed box 1, so that Half of the slag shovel 4 is immersed in the molten iron, and then the drive motor 101 is started to rotate clockwise, driving the two slag shovels 4 with the open sides to close together. After closing together, the hydraulic cylinder 202 is started to drive the hydraulic rod 203 to rise, so that the slag shovel 4 leaves the molten iron ladle. When the linear motor mover 2 works, the slag shovel 4 is driven to leave the top of the molten iron ladle, and at the same time, the drive motor 101 is started to rotate counterclockwise, so that the two slag shovels 4 move away from each other and then open, until the two slag shovels 4 collide with each other, and the slag is poured out. When the fixed box 1 is set above the molten iron ladle, the protective cover 3 prevents hot air from moving directly to the fixed box 1, which effectively prevents damage caused by heat. Specific embodiment 2

[0031] See also Figure 1 , 5 On the basis of the specific embodiment 1, the two slag shovels 4 are symmetrically arranged, and the sides and tops of the two slag shovels 4 close to each other are both opened. When the two slag shovels 4 are working, when the two slag shovels 4 are put together, the slag shovels 4 scrape the slag into it and contain it.

[0032] The operation process of this embodiment is: during operation, after the slag shovel 4 enters the molten iron ladle, when the two slag shovels 4 are combined, after the slag shovel 4 rises, the molten iron falls into the molten iron tank through the sieve hole 401, but the slag remains in the slag shovel 4.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A secondary slag removal device for molten iron casting, comprising a fixed box (1), a linear motor mover (2), a protective cover (3) and a slag removal shovel (4), characterized in that: A driving motor (101) is fixed to the bottom of the fixed box (1), a transmission shaft (102) is fixed to the output end of the driving motor (101), the transmission shaft (102) is passed through and movably connected to the bottom of the fixed box (1), a driven shaft (105) is inserted through the bottom of the fixed box (1) on one side of the transmission shaft (102), a slag shovel (4) is fixed to the bottom ends of both the transmission shaft (102) and the driven shaft (105), and sieve holes (401) are evenly passed through the bottom of the slag shovel (4), a protective cover (3) is fixed to the bottom of the fixed box (1), and a linear motor mover (2) is arranged above the fixed box (1).

2. A secondary slag removal device for molten iron casting according to claim 1, characterized in that: A driving gear (103) is fixed to the upper part of the circumferential side of the transmission shaft (102), and a driven gear (104) is fixed to the upper part of the circumferential side of the driven shaft (105). The driving gear (103) and the driven gear (104) are meshed with each other. The top ends of the driving gear (103) and the driven gear (104) are in contact with the bottom of the fixed box (1). The driving gear (103) and the driven gear (104) are both arranged in a protective cover (3).

3. A secondary slag removal device for molten iron casting according to claim 1, characterized in that: A limiting plate (106) is fixed to the top end of the driven shaft (105), and the bottom end of the limiting plate (106) is in contact with the bottom of the fixed box (1).

4. A secondary slag removal device for molten iron casting according to claim 1, characterized in that: The linear motor mover (2) is movably connected to a linear motor stator (201), a hydraulic cylinder (202) is fixed to the bottom of the linear motor mover (2), a hydraulic rod (203) is movably connected to the hydraulic cylinder (202), and the bottom end of the hydraulic rod (203) is fixed to the top center of the fixed box (1).

5. The secondary slag removal device for molten iron casting according to claim 1, characterized in that: The bottom of the protective cover (3) is symmetrically provided with movable holes (301), and the transmission shaft (102) and the driven shaft (105) are respectively inserted into the two movable holes (301).

6. A secondary slag removal device for molten iron casting according to claim 1, characterized in that: The two slag shovels (4) are symmetrically arranged, and the sides and tops of the two slag shovels (4) close to each other are both open.

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