Screening equipment for producing high slag erosion resistance iron channel castable

Abstract

This utility model discloses a screening device for producing high-slag-erosion-resistant iron trough castable, specifically relating to the technical field of screening equipment. It includes a driving component for driving a screen frame to screen the iron trough castable. The driving component comprises two screws respectively located on both sides of the screen frame, with the screws externally fixed to the screen frame via a buffer component. A movable shaft is located at the bottom of the buffer component. This utility model uses a servo motor to drive the screws to rotate. The screws drive the movable shaft to rotate synchronously via a first pulley, a belt, and a second pulley. Thus, when the screws drive the moving seat to reciprocate the screen frame, the movable shaft drives a lever to repeatedly move a spring-limited connecting plate up and down. This causes the material on the screen plate to not only be pushed but also thrown up and fall freely due to the up-and-down movement of the screen plate, creating a compound vibration. This also increases the collision efficiency between the material and the screen frame, achieving the purpose of breaking up material agglomeration and preventing screen frame blockage.

Description

Technical Field

[0001] This utility model relates to the field of screening equipment technology, and more specifically to a screening equipment for the production of high slag erosion refractory castable. Background Technology

[0002] High-slag-erosion-resistant trough castable is a refractory material specifically designed for trough linings in the metallurgical industry. In the steelmaking process, the trough plays a crucial role in guiding the flow of molten iron and slag, and its lining material needs to withstand extremely high temperatures, intense erosion, and chemical corrosion from the slag. High-slag-erosion-resistant trough castable is typically composed of various refractory raw materials, such as corundum, silicon carbide, and aluminum-magnesium spinel, with the addition of appropriate binders and additives, and is prepared through a special process. This castable exhibits excellent high-temperature resistance, capable of withstanding temperatures up to 1500℃ or even higher for extended periods without softening or deformation; it possesses good thermal shock resistance, capable of coping with rapid temperature changes within the trough; and, more importantly, it has an extremely low coefficient of thermal expansion and high density, effectively resisting slag penetration and chemical corrosion, significantly extending the service life of the trough lining and reducing downtime and maintenance costs caused by lining damage.

[0003] The performance of high slag erosion resistant castable refractory mortars largely depends on the quality and particle size distribution of their raw materials. Various refractory raw materials used in the production process, such as corundum particles and silicon carbide powder, often exhibit inconsistent particle sizes due to factors in mining and processing. The roles and performance of raw materials with different particle sizes vary significantly in the castable. Therefore, precise screening of the raw materials before batching is necessary to ensure that each material is within the appropriate particle size range. This is a crucial prerequisite for guaranteeing the stable quality and excellent performance of high slag erosion resistant castable refractory mortars.

[0004] As shown in the prior art disclosed in CN221453253U, although this prior art facilitates rapid screening of castable refractory in the tapping trough by using a combination of a screening frame, lead screw, first support plate, second support plate, mounting frame, and screening rod, allowing operators to pour the castable refractory material into the screening frame, start the stepper motor, and then drive the lead screw to rotate. Under the rotation of the lead screw, the movement of the threaded sleeve causes the screening frame to sway left and right on the support frame, thereby continuously screening the castable refractory inside, leaving large particles inside the screening frame. Simultaneously, as the screening frame moves left and right, the screening rod moves relative to the screening frame, further accelerating the screening efficiency. However, this prior art involves screening with back-and-forth displacement, relying solely on gravity for screening, resulting in low efficiency and a tendency for material adhesion to cause clogging of the screening frame, thus affecting the screening effect of this technical solution. Utility Model Content

[0005] To overcome the aforementioned deficiencies of the prior art, this utility model provides a screening device for the production of high slag erosion refractory castable. A servo motor drives the screw to rotate, and the screw drives the movable shaft to rotate synchronously via a first pulley, a belt, and a second pulley. As the screw drives the movable seat to move the screen frame back and forth, the movable shaft drives the lever to repeatedly move the connecting plate, which is limited by a spring, up and down. This causes the material to not only be pushed on the screen plate, but also to be thrown up and fall freely due to the up and down swing of the screen plate, thus forming a compound vibration to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a screening device for producing high slag erosion refractory iron trough castable, including a driving component for driving the screen frame to screen the iron trough castable;

[0007] The driving component includes two screws respectively located on both sides of the screen frame, and the screws are fixed to the screen frame by a buffer component. The bottom of the buffer component is provided with a movable shaft, one end of which is connected to the screws by a linkage component, and a lever for moving the buffer component up and down is sleeved on the outside of the movable shaft.

[0008] In a preferred embodiment, the buffer includes a movable seat sleeved on the outside of the screw, the movable seat being threadedly connected to the screw, a fixed bracket being installed on the top of the movable seat near the screen frame, a plurality of spaced studs being threadedly connected inside the fixed bracket, a common connecting plate for connecting the screen frame being sleeved on the bottom of the plurality of screws, a spring for limiting the connecting plate being sleeved on the top of each screw, and a lever being located at the bottom of the connecting plate.

[0009] In a preferred embodiment, the linkage includes a first pulley and a second pulley driven by a belt, the first pulley being sleeved outside the rear end of the screw, and the second pulley being sleeved outside the rear end of the movable shaft.

[0010] In a preferred embodiment, a mounting bracket is sleeved on the bottom end of the screw, and both ends of the screw are movably connected to the inner wall of the mounting bracket via bearings. Two mounting seats are installed on the side of the mounting bracket near the movable shaft, and both ends of the movable shaft are movably connected to the two mounting seats respectively via bearings.

[0011] The rear end of the mounting bracket is equipped with a servo motor for driving the screw.

[0012] In a preferred embodiment, a positioning post for limiting the movable seat is installed inside the mounting frame. The positioning post is located at the bottom of the screw, and the bottom end of the movable seat is sleeved on the outside of the positioning post.

[0013] In a preferred embodiment, the mounting frame is equipped with legs at both the front and rear ends, and a support plate is installed between the two corresponding legs. The top of the two support plates is provided with the same collection box.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] The screw is driven to rotate by a servo motor. The screw drives the movable shaft to rotate synchronously via the first pulley, belt, and second pulley. As the screw drives the moving seat to move the screen frame back and forth, the movable shaft drives the lever to repeatedly move the connecting plate, which is limited by the spring, up and down. This causes the material to not only be pushed on the screen plate, but also to be thrown up and fall freely due to the up and down swing of the screen plate. This creates a compound vibration and increases the collision efficiency between the material and the screen frame, thereby breaking up material agglomeration and preventing screen frame blockage, thus ensuring screening effect and efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 For the present utility model Figure 1 Enlarged view of section A in the middle;

[0018] Figure 3 This is a side view of the movable seat of this utility model;

[0019] Figure 4 This is the main view of the movable axis of this utility model;

[0020] Figure 5 This is a rear view of the mounting bracket of this utility model.

[0021] The attached figures are labeled as follows: 1. Screen frame; 2. Screw; 3. Movable shaft; 4. Lever; 5. Movable seat; 6. Fixed bracket; 7. Stud; 8. Connecting plate; 9. Spring; 10. Belt; 11. First pulley; 12. Second pulley; 13. Mounting frame; 14. Mounting seat; 15. Servo motor; 16. Positioning column; 17. Support leg; 18. Support plate; 19. Collection box. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Refer to the instruction manual appendix Figure 1-5This utility model provides a screening device for producing high slag erosion refractory castable, including a driving component for driving a screen frame 1 to screen the refractory castable; the driving component includes two screws 2 respectively located on both sides of the screen frame 1, and the screws 2 are fixed to the screen frame 1 by a buffer component. The bottom of the buffer component is provided with a movable shaft 3, one end of the movable shaft 3 is connected to the screws 2 by a linkage component, and a lever 4 for moving the buffer component up and down is sleeved on the outside of the movable shaft 3.

[0024] The worker places the material inside the screen frame 1. Then, because the linkage includes a first pulley 11 and a second pulley 12 driven by a belt 10, the first pulley 11 is sleeved on the outside of the rear end of the screw 2, and the second pulley 12 is sleeved on the outside of the rear end of the movable shaft 3, the screw 2 drives the movable shaft 3 to rotate through the first pulley 11, the belt 10 and the second pulley 12, thereby driving the lever 4 on the movable shaft 3 to rotate.

[0025] Furthermore, the buffer component includes a movable seat 5 sleeved on the outside of the screw 2. The movable seat 5 is threadedly connected to the screw 2. A fixed bracket 6 is installed on the top of the movable seat 5 near the screen frame 1. Multiple spaced studs 7 are threadedly connected inside the fixed bracket 6. The bottom ends of multiple screws 2 are sleeved with the same connecting plate 8 for connecting the screen frame 1. Each screw 2 has a spring 9 sleeved on its top end for limiting the connecting plate 8. The lever 4 is located at the bottom of the connecting plate 8, so that the screw 2 drives the movable seat 5 and the fixed bracket 1. When the support 6 drives the screen frame 1 to move back and forth, the lever 4 can repeatedly move the connecting plate 8, which is limited by the spring 9, up and down with the rotation of the movable shaft 3. Thus, while the screen plate moves back and forth, the periodic movement of the lever 4 and the elastic action of the spring 9 generate up and down swing, forming a compound vibration. The material on the screen plate is not only pushed, but also thrown up and falls freely due to the up and down swing of the screen plate, forming a parabolic motion trajectory. This increases the collision efficiency between the material and the screen frame 1, thereby breaking up material agglomeration and preventing the screen frame 1 from clogging.

[0026] To achieve the operation of the screw 2 and the movable shaft 3, it is necessary to ensure the stability of the screw 2 and the movable shaft 3, such as... Figure 1 , 2 As shown in Figures 4 and 5, a mounting bracket 13 is sleeved on the bottom end of the screw 2, and both ends of the screw 2 are movably connected to the inner wall of the mounting bracket 13 through bearings. Two mounting seats 14 are installed on the side of the mounting bracket 13 near the movable shaft 3, and both ends of the movable shaft 3 are movably connected to the two mounting seats 14 respectively through bearings. A servo motor 15 for driving the screw 2 is installed at the rear end of the mounting bracket 13.

[0027] The screw 2 is supported by the mounting bracket 13, and the movable shaft 3 is supported by the two mounting seats 14, thereby ensuring the operational stability of the screw 2 and the movable shaft 3. At the same time, the screw 2 is driven to rotate by the servo motor 15, and the screw 2 drives the movable shaft 3 to rotate by the first pulley 11, the belt 10 and the second pulley 12.

[0028] To ensure the displacement stability of the movable seat 5 on the screw 2, it is necessary to limit the movement of the movable seat 5, such as... Figure 2 , 3 As shown in Figure 5, a positioning post 16 for limiting the movement of the movable seat 5 is installed inside the mounting bracket 13. The positioning post 16 is located at the bottom of the screw 2, and the bottom end of the movable seat 5 is sleeved on the outside of the positioning post 16. Since the bottom end of the movable seat 5 is slidably connected to the positioning post 16, the positioning post 16 can limit the displacement of the movable seat 5, thereby ensuring the displacement stability of the movable seat 5.

[0029] After the material is screened by the screen frame 1, the screened material needs to be collected by the collection box 19, such as... Figure 1 As shown, the mounting frame 13 has support legs 17 installed at both the front and rear ends of the bottom, and a support plate 18 is installed between the two corresponding support legs 17. The top of the two support plates 18 is provided with the same collection box 19. Since the collection box 19 is located at the bottom of the screen frame 1, the material screened by the screen frame 1 can fall into the collection box 19, thereby realizing the collection of the screened material.

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A screening device for the production of high slag erosion resistant iron trough castable, characterized in that: Includes a drive unit for driving the screen frame (1) to screen the iron trough castable; The driving component includes two screws (2) respectively located on both sides of the screen frame (1), and the screws (2) are fixed to the screen frame (1) by a buffer component. The bottom of the buffer component is provided with a movable shaft (3), one end of the movable shaft (3) is connected to the screws (2) by a linkage component, and a lever (4) for moving the buffer component up and down is sleeved on the outside of the movable shaft (3).

2. A screening apparatus for the production of high slag corrosion resistant iron trough castable according to claim 1, characterized in that: The buffer includes a movable seat (5) sleeved on the outside of the screw (2), the movable seat (5) being threadedly connected to the screw (2), a fixed bracket (6) being installed on the top of the movable seat (5) near the screen frame (1), a plurality of spaced studs (7) being threadedly connected inside the fixed bracket (6), a connecting plate (8) for connecting the screen frame (1) being sleeved on the bottom of the plurality of screws (2), a spring (9) for limiting the connecting plate (8) being sleeved on the top of each screw (2), and a lever (4) being located at the bottom of the connecting plate (8).

3. The screening apparatus for producing high slag corrosion resistant iron trough castable according to claim 1, characterized in that: The linkage includes a first pulley (11) and a second pulley (12) driven by a belt (10). The first pulley (11) is sleeved outside the rear end of the screw (2), and the second pulley (12) is sleeved outside the rear end of the movable shaft (3).

4. The screening apparatus for producing high slag corrosion resistant iron trough castable according to claim 1, characterized in that: The screw (2) is fitted with a mounting bracket (13) on the outside of the bottom end, and both ends of the screw (2) are movably connected to the inner wall of the mounting bracket (13) through bearings. Two mounting seats (14) are installed on the side of the mounting bracket (13) near the movable shaft (3), and both ends of the movable shaft (3) are movably connected to the two mounting seats (14) respectively through bearings. The mounting bracket (13) has a servo motor (15) installed at the rear end for driving the screw (2) to rotate.

5. A screening apparatus for the production of high slag corrosion resistant iron spout castable according to claim 4, characterized in that: The mounting bracket (13) is equipped with a positioning post (16) for limiting the moving seat (5). The positioning post (16) is located at the bottom of the screw (2), and the bottom end of the moving seat (5) is sleeved on the outside of the positioning post (16).

6. A screening apparatus for producing a high slag corrosion resistant iron spout castable according to claim 4, characterized in that: The mounting bracket (13) has feet (17) installed at the bottom of both the front and rear ends, and a support plate (18) is installed between the two corresponding feet (17). The top of the two support plates (18) is provided with the same collection box (19).

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