Smokeless screening device for molten steel refining slag modifier

Abstract

The utility model relates to a smokeless molten steel refining slag modifier screening device which comprises a screen drum (10) used for containing a slag modifier to be screened. The driving assembly (20) comprises a swing rod (21) and a rotating shaft (22), the swing rod (21) can swing around the lower end of the swing rod (21), the rotating shaft (22) is rotatably installed at the upper end of the swing rod (21), and the rotating shaft (22) is connected with the screen drum (10); the swing rod (21) swings around the lower end of the swing rod (21) in a reciprocating mode, the rotating shaft (22) at the upper end of the swing rod (21) rotates, the screen drum (10) is driven to swing in a reciprocating mode and rotate at the same time, the slag modifier to be screened in the screen drum (10) is screened, the motion mode of the screen drum (10) is enriched, and the screening effect and screening efficiency of the slag modifier are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel smelting, in particular to a smokeless molten steel refining slag conditioning agent screening device. Background Art

[0002] The main components of casting slag tailings are CaO and AL2O3. They have low oxidizability, low melting point and fast melting speed. They are excellent raw materials for producing slag conditioning agents for molten steel refining. Ladle casting slag tailings are used to prepare high-aluminum slag conditioning agents, which are used to treat and recycle ladle casting slag, reduce steelmaking production costs, optimize steelmaking refining processes, and avoid environmental pollution caused by improper storage of ladle casting slag tailings. The specific process includes water-cooling the casting slag and then hammering it to obtain large pieces of slag steel and small pieces of casting slag, which are then mixed with alumina powder and aluminum powder and made into balls. After screening, drying and screening again, a slag conditioning agent with a wide range of uses is produced.

[0003] In the process of preparing high-aluminum slag adjusting agent using ladle casting slag and tailings, the prepared high-aluminum slag adjusting agent needs to be screened to obtain products of different diameters. However, the existing high-aluminum slag adjusting agent screening device has a single movement form, poor screening effect and low screening efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing high-aluminum slag adjusting agent screening device has a single movement form, poor screening effect and low screening efficiency.

[0005] In order to solve the above problems, the utility model provides a smokeless molten steel refining slag conditioning agent screening device, including a screen drum, which is used to hold the slag conditioning agent to be screened, and also includes a driving assembly, which includes a swing rod and a rotating shaft. The swing rod can swing around its lower end, and the upper end of the swing rod is rotatably mounted with a rotating shaft, which is connected to the screen drum.

[0006] The smokeless molten steel refining slag conditioning agent screening device provided by the utility model also has the following technical features:

[0007] The driving assembly also includes a motor and a disc. The output shaft of the motor is eccentrically fixed to the disc. The disc is rotatably sleeved in a connecting ring. The connecting ring is hinged to one end of a pull rod. The other end of the pull rod is fixed to the upper end of a swing rod.

[0008] The connecting ring is fixed to one end of the connecting rod, the connecting rod is arranged along the radial direction of the connecting ring, and the other end of the connecting rod is hinged to one end of the pulling rod.

[0009] The output shaft of the motor is fixed to the first pulley, the first pulley is connected to the second pulley through a belt transmission, the second pulley is fixed to the driving shaft, the driving shaft is fixed to the first gear, the first gear is meshed with the second gear, and the second gear is fixed to the rotating shaft;

[0010] The lower end of the swing rod at one end of the driving shaft is rotatably connected, and the other end of the driving shaft is rotatably connected to the bracket through the first support, and a motor is fixed on the bracket.

[0011] The rotating shaft is fixed to the first square shaft, the first square shaft is sleeved in the first square sleeve, the first square sleeve is fixed to one end of the screen cylinder, an annular groove is opened circumferentially on the outer wall of the first square sleeve, a bayonet pin is provided in the annular groove to slide along the groove, and the bayonet pin is fixed to the swing rod;

[0012] The other end of the screen drum is fixed to the second square sleeve, and the second square sleeve is sleeved with a second square shaft. The second square shaft is rotatably connected to one end of the first connecting rod, and the other end of the first connecting rod is rotatably connected to the bracket through a second support.

[0013] The annular groove is an annular wavy groove.

[0014] The bayonet is fixed to one end of the support rod, and the other end of the support rod is fixed to the swing rod.

[0015] The first square sleeve is coaxially arranged with the second square sleeve, and the swing rod and the first connecting rod have the same length.

[0016] A collecting groove is provided on the upper surface of the bracket, the collecting groove is located below the screen cylinder, and a discharge port is provided at the bottom of the collecting groove.

[0017] The sieve cylinder is provided with an opening, and a cover plate corresponding to the opening is installed on the sieve cylinder.

[0018] The utility model has the following beneficial effects: the swing rod swings back and forth around its lower end and rotates through the rotating shaft at its upper end, thereby driving the screen drum to swing back and forth and rotate at the same time, so as to screen the slag conditioning agent to be screened therein, thereby enriching the movement form of the screen drum and improving the screening effect and screening efficiency of the slag conditioning agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an axonometric drawing of the first viewing angle of the utility model;

[0020] Figure 2 for Figure 1 A partial enlarged view of

[0021] Figure 3 It is an axonometric drawing of the second viewing angle of the present utility model;

[0022] Figure 4 It is a partial sectional view of the main view of the utility model. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0024] like Figures 1 to 4 As shown, the utility model smokeless molten steel refining slag conditioning agent screening device includes a screen drum 10, which is used to hold the slag conditioning agent to be screened, and also includes a driving assembly 20, which includes a swing rod 21 and a rotating shaft 22. The swing rod 21 can swing around its lower end, and the upper end of the swing rod 21 is rotatably mounted with a rotating shaft 22, and the rotating shaft 22 is connected to the screen drum 10.

[0025] The utility model drives the screen drum 10 to swing back and forth and rotate at the same time by the reciprocating swing of the swing rod 21 around its lower end and the rotation of the rotating shaft 22 at its upper end, so as to screen the slag conditioning agent to be screened therein, enriching the movement form of the screen drum 10 and improving the screening effect and screening efficiency of the slag conditioning agent.

[0026] A driving device may be fixed on the upper end of the swing rod 21 , and an output end of the driving device is connected to the rotating shaft 22 for driving the rotating shaft 22 to rotate.

[0027] Preferably, the driving assembly 20 also includes a motor 23 and a disc 24. The output shaft of the motor 23 is eccentrically fixed to the disc 24. The disc 24 can be rotatably mounted in a connecting ring 25. The connecting ring 25 is hinged to one end of a pull rod 26. The other end of the pull rod 26 is fixed to the upper end of the rocker 21.

[0028] The utility model drives the disc 24 to rotate eccentrically through the output shaft of the motor 23, and pulls or pushes the swing rod 21 to swing back and forth around its lower end through the connecting ring 25 and the pull rod 26, thereby driving the screen drum 10 to swing back and forth.

[0029] The other end of the pull rod 26 is vertically fixed to the upper end of the swing rod 21 .

[0030] Preferably, the connecting ring 25 is fixed to one end of a connecting rod 27 , the connecting rod 27 is arranged along the radial direction of the connecting ring 25 , and the other end of the connecting rod 27 is hinged to one end of a pull rod 26 .

[0031] Preferably, the output shaft of the motor 23 is fixed to the first pulley 31, the first pulley 31 is connected to the second pulley 32 through a belt 33, the second pulley 32 is fixed to the drive shaft 34, the drive shaft 34 is fixed to the first gear 35, the first gear 35 is meshed with the second gear 36, and the second gear 36 is fixed to the rotating shaft 22;

[0032] One end of the driving shaft 34 is rotatably connected to the lower end of the swing rod 21 , and the other end of the driving shaft 34 is rotatably connected to a bracket 38 via a first support 37 , and a motor 23 is fixed to the bracket 38 .

[0033] The utility model drives the first pulley 31 to rotate through the output shaft of the motor 23, and drives the second pulley 32, the drive shaft 34, and the first gear 35 to rotate through the belt 33, and drives the second gear 36, the rotating shaft 22 and the screen drum 10 to rotate. Since the rocker arm 21 swings back and forth around its lower end at the same time, the second gear 36, the rotating shaft 22 and the screen drum 10 can rotate at variable speeds, thereby realizing the reciprocating swing of the screen drum 10 and the variable speed rotation at the same time, so as to better screen the slag conditioning agent to be screened therein, further enriching the movement form of the screen drum 10, and improving the screening effect and screening efficiency of the slag conditioning agent.

[0034] Preferably, the rotating shaft 22 is fixed to the first square shaft 41, the first square shaft 41 is sleeved in the first square sleeve 42, the first square sleeve 42 is fixed to one end of the screen drum 10, an annular groove 43 is circumferentially opened on the outer wall of the first square sleeve 42, a bayonet 44 sliding along the annular groove 43 is provided, and the bayonet 44 is fixed to the swing rod 21;

[0035] The other end of the screen drum 10 is fixed to the second square sleeve 45 , and a second square shaft 46 is sleeved in the second square sleeve 45 . The second square shaft 46 is rotatably connected to one end of a first connecting rod 47 , and the other end of the first connecting rod 47 is rotatably connected to the bracket 38 through a second support 48 .

[0036] The utility model drives the first square shaft 41 to rotate through the rotating shaft 22, and drives the screen drum 10 to rotate. At the same time, the pin 44 on the rocker arm 21 slides along the annular groove 43 on the first square sleeve 42, driving the first square sleeve 42 to move axially, so that the screen drum 10 can rock along its axial direction while swinging back and forth and rotating at variable speeds, so as to better screen the slag-conditioning agent to be screened therein, further enriching the movement form of the screen drum 10, and improving the screening effect and screening efficiency of the slag-conditioning agent; at the same time, the second square shaft 46 and the second square sleeve 45 realize the supporting effect on the other end of the screen drum 10.

[0037] Preferably, the annular groove 43 is an annular wavy groove.

[0038] Preferably, see Figure 3 The bayonet 44 is fixed to one end of the support rod 49 , and the other end of the support rod 49 is fixed to the swing rod 21 .

[0039] Preferably, the first square sleeve 42 and the second square sleeve 45 are coaxially arranged, and the swing rod 21 and the first connecting rod 47 have the same length.

[0040] Preferably, a collecting groove 11 is provided on the upper surface of the bracket 38 , the collecting groove 11 is located below the sieve drum 10 , and a discharge port 12 is provided at the bottom of the collecting groove 11 .

[0041] Wherein, the discharge port 12 is provided with a valve.

[0042] Preferably, see Figure 4 The sieve drum 10 is provided with an opening 13 , and a cover plate 14 corresponding to the opening is installed on the sieve drum 10 .

[0043] The cover plate 14 may be installed by hinge, snap-fit, etc.

[0044] The working principle of the utility model is as follows:

[0045] First, open the cover plate 14 on the screen drum 10, and load the slag conditioning agent to be screened from the opening 13; start the motor 23, the output shaft of the motor 23 drives the disc 24 to rotate eccentrically, and pulls or pushes the swing rod 21 to swing back and forth around its lower end through the connecting ring 25 and the pull rod 26, thereby driving the screen drum 10 to swing back and forth; at the same time, the output shaft of the motor 23 drives the first pulley 31 to rotate, and drives the second pulley 32, the driving shaft 34, and the first gear 35 to rotate through the belt 33, driving the second gear 36, the rotating shaft 22 and the screen drum 10 to rotate. Since the swing rod 21 swings back and forth around its lower end at the same time, the second gear 36, the rotating shaft 22 and the screen drum 10 can The rotating shaft 22 drives the screen drum 10 to rotate at a variable speed through the first square shaft 41, and at the same time, the latch 44 on the rocker arm 21 slides along the annular groove 43 on the first square sleeve 42, driving the first square sleeve 42 to move axially, so that the screen drum 10 can swing along its axial direction while reciprocating and rotating at a variable speed, so as to better screen the slag-conditioning agent to be screened therein, further enriching the movement form of the screen drum 10 and improving the screening effect and screening efficiency of the slag-conditioning agent; at the same time, the second square shaft 46 and the second square sleeve 45 realize the support effect on the other end of the screen drum 10.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A smokeless molten steel refining slag conditioning agent screening device, comprising a screen drum (10) for containing the slag conditioning agent to be screened, characterized in that: It also includes a driving assembly (20), which includes a swing rod (21) and a rotating shaft (22). The swing rod (21) can swing around its lower end. The rotating shaft (22) is rotatably mounted on the upper end of the swing rod (21). The rotating shaft (22) is connected to the screen drum (10).

2. The smokeless molten steel refining slag conditioning agent screening device according to claim 1 is characterized in that: The driving assembly (20) further comprises a motor (23) and a disc (24). The output shaft of the motor (23) is eccentrically fixed to the disc (24). The disc (24) is rotatably mounted in a connecting ring (25). The connecting ring (25) is hinged to one end of a pull rod (26). The other end of the pull rod (26) is fixed to the upper end of the swing rod (21).

3. The smokeless molten steel refining slag conditioning agent screening device according to claim 2 is characterized in that: The connecting ring (25) is fixed to one end of a connecting rod (27), the connecting rod (27) is arranged along the radial direction of the connecting ring (25), and the other end of the connecting rod (27) is hinged to one end of a pull rod (26).

4. The smokeless molten steel refining slag conditioning agent screening device according to claim 2 is characterized in that: The output shaft of the motor (23) is fixed to the first pulley (31), the first pulley (31) is connected to the second pulley (32) via a belt (33), the second pulley (32) is fixed to the drive shaft (34), the drive shaft (34) is fixed to the first gear (35), the first gear (35) is meshed with the second gear (36), and the second gear (36) is fixed to the rotating shaft (22); One end of the drive shaft (34) is rotatably connected to the lower end of the swing rod (21), and the other end of the drive shaft (34) is rotatably connected to a bracket (38) via a first support (37), and a motor (23) is fixed to the bracket (38).

5. The smokeless molten steel refining slag conditioning agent screening device according to claim 4 is characterized in that: The rotating shaft (22) is fixed to the first square shaft (41), the first square shaft (41) is sleeved in the first square sleeve (42), the first square sleeve (42) is fixed to one end of the screen drum (10), an annular groove (43) is circumferentially formed on the outer wall of the first square sleeve (42), a latch (44) is provided in the annular groove (43) and slides along the groove, and the latch (44) is fixed to the swing rod (21); The other end of the screen drum (10) is fixed to a second square sleeve (45), a second square shaft (46) is sleeved inside the second square sleeve (45), the second square shaft (46) is rotatably connected to one end of a first connecting rod (47), and the other end of the first connecting rod (47) is rotatably connected to a bracket (38) via a second support (48).

6. The smokeless molten steel refining slag conditioning agent screening device according to claim 5 is characterized in that: The annular groove (43) is an annular wavy groove.

7. The smokeless molten steel refining slag conditioning agent screening device according to claim 5 is characterized in that: The latch (44) is fixed to one end of the support rod (49), and the other end of the support rod (49) is fixed to the swing rod (21).

8. The smokeless molten steel refining slag conditioning agent screening device according to claim 5, characterized in that: The first square sleeve (42) and the second square sleeve (45) are coaxially arranged, and the swing rod (21) and the first connecting rod (47) have the same length.

9. The smokeless molten steel refining slag conditioning agent screening device according to claim 4, characterized in that: A collecting groove (11) is provided on the upper surface of the bracket (38), the collecting groove (11) is located below the screen drum (10), and a discharge port (12) is provided at the bottom of the collecting groove (11).

10. The smokeless molten steel refining slag conditioning agent screening device according to claim 1, characterized in that: The sieve drum (10) is provided with an opening (13), and a cover plate (14) corresponding to the opening is installed on the sieve drum (10).

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