A granule classifier for metallurgical material production

Abstract

This utility model relates to the field of metallurgical auxiliary material production technology, specifically a particle classifier for metallurgical auxiliary material production. It includes a base plate, a classifying cylinder above the base plate, an upper screen plate and a lower screen plate installed on the inner wall of the classifying cylinder for particle classification, and two discharge troughs on the side wall of the classifying cylinder for unloading. It also includes a tilting mechanism, disposed on the top surface of the base plate, for tilting the classifying cylinder. The tilting mechanism includes a frame fixed to the top surface of the base plate, two rotating rollers fixed to the outer wall of the classifying cylinder and rotatably connected to two vertical ends of the frame, and a rotating rod coaxially fixed to the surface of one of the rotating rollers away from the classifying cylinder. This utility model solves the problem of inconvenient particle classification and unloading in metallurgical auxiliary materials by setting up a base plate, a classifying cylinder, a feed funnel, a discharge pipe, a solenoid valve, an upper screen plate, a lower screen plate, a tilting mechanism, and a shielding mechanism.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical auxiliary material production technology, specifically a particle classifier for metallurgical auxiliary material production. Background Technology

[0002] In the production of metallurgical auxiliary materials, particle classification is a key step, and a particle classifier is needed in the classification process.

[0003] Patent CN216368878U discloses a silicon carbide particle grading device, including a base plate, a tank on the top of the base plate, a vibration mechanism inside the tank, a filter screen inside the vibration mechanism, a dust removal mechanism on the top of the base plate, and a motor. The right side of the tank is fixedly connected to the motor, which extends through and into the tank at one end.

[0004] Although the device has an anti-clogging function, and can cause the material to vibrate on top of the filter screen by continuous vibration during material classification, thus avoiding material clogging and increasing the material passing through the filter screen and improving the efficiency of material classification, the device has limitations in terms of unloading. The device does not have an unloading structure, making it inconvenient to remove the material particles that have not been screened off the filter screen. Manual unloading is required, which is time-consuming and labor-intensive. In view of this, we propose a particle classifier for metallurgical auxiliary material production. Utility Model Content

[0005] The purpose of this utility model is to provide a particle classifier for metallurgical auxiliary material production. By setting a tilting mechanism and a shielding mechanism, and setting two unloading troughs on the outer wall of the classifier cylinder, the problem of inconvenient unloading of traditional metallurgical auxiliary material classifiers can be solved.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A particle classifier for metallurgical auxiliary material production includes a base plate, a classifying cylinder above the base plate, an upper screen plate and a lower screen plate for classifying particles installed on the inner wall of the classifying cylinder, and two discharge troughs for unloading material on the side wall of the classifying cylinder. The device also includes:

[0008] A tilting mechanism is installed on the top surface of the base plate and is used to tilt the grading cylinder. The tilting mechanism includes a frame fixed on the top surface of the base plate, two rotating rollers fixed on the outer wall of the grading cylinder and rotatably connected to the two vertical plate ends of the frame, a rotating rod coaxially fixed on the surface of one of the rotating rollers away from the grading cylinder, and a motor installed on the outer wall of one of the vertical plate ends of the frame and used to drive the rotating rod to rotate.

[0009] A shielding mechanism is installed on the outer wall of the grading cylinder to shield the two discharge troughs on the outer wall of the grading cylinder. The shielding mechanism includes two baffles slidably connected to the outer wall of the grading cylinder, a vertical plate fixed to the top surface of the grading cylinder, and an electric cylinder installed on the outer wall of the vertical plate for driving the two baffles to move up and down.

[0010] In a preferred embodiment, the thickness of the base plate is 2-6cm, and the bottom surface of the base plate is provided with anti-slip texture;

[0011] In a preferred embodiment, a feed funnel communicating with its inner cavity is fixed on the top surface of the classifying cylinder, and a discharge pipe communicating with its inner cavity is fixed on the bottom end of the classifying cylinder. Solenoid valves are installed on the outer walls of both the discharge pipe and the feed funnel tube.

[0012] In a preferred embodiment, the parts of the grading cylinder that contact the feed hopper and the discharge pipe are all provided with sealing rings. The bottom end of the grading cylinder has a structure that is concave from all sides to the center. The upper screen plate is located above the lower screen plate. The dimensions of the upper screen plate and the lower screen plate are adapted to the inner cavity dimensions of the grading cylinder. The two discharge grooves on the outer wall of the grading cylinder are arranged from top to bottom. The upper screen plate is located between the two discharge grooves on the outer wall of the grading cylinder, and the lower screen plate is located below the two discharge grooves on the outer wall of the grading cylinder.

[0013] These three settings enable metallurgical auxiliary material particles to be classified according to particle size in the classifier. The material enters through the feed funnel, and particles of different sizes are screened by the upper and lower screen plates and discharged through the discharge pipe. The solenoid valve controls the material in and out, making the equipment more stable and less prone to displacement during operation. It also enhances the sealing of the equipment and allows the material to be better concentrated and discharged through the discharge pipe.

[0014] In a preferred embodiment, the tilting mechanism further includes a rotating shaft rotatably connected to one of the vertical plate ends of the frame, and two pulleys located above the base plate and connected by belt drive. The two pulleys are respectively coaxially fixed on the outer circumferential wall of the rotating shaft and the rotating rod, and the output shaft of the motor is coaxially connected to the rotating shaft.

[0015] This setting allows the grading cylinder to swing within a suitable angle range, ensuring more thorough contact between the material and the screen plate, thus improving screening efficiency.

[0016] In a preferred embodiment, the two baffles are arranged from top to bottom and are fixedly connected by two fixed columns. The baffles are tightly attached to the outer wall of the classifying cylinder. The positions of the baffles and the discharge chute on the same side of the outer wall of the classifying cylinder are corresponding and their sizes are compatible. The vertical plate is L-shaped. The cylinder body of the electric cylinder is installed on the top surface of the horizontal plate end of the vertical plate. The piston rod of the electric cylinder passes through the horizontal plate end of the vertical plate and is fixed on the top surface of the upper baffle.

[0017] In a preferred embodiment, the outer wall of the grading cylinder is provided with two vertically arranged guide grooves, and the outer wall of the baffle is fixed with two guide blocks that are slidably connected to the guide grooves on the same side of the outer wall of the grading cylinder;

[0018] In a preferred embodiment, the cross-sectional shape of the guide groove on the outer wall of the grading cylinder is convex, and the shape of the guide block is convex, which matches the shape of the guide groove on the outer wall of the grading cylinder.

[0019] These three settings allow the unloading chute to be opened or closed as needed. During unloading, the grading cylinder tilts, the baffle rises to expose the unloading chute, and the material is smoothly discharged.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. This utility model achieves a three-stage grading function for metallurgical auxiliary material particles through the arrangement of a base plate, a grading cylinder, a feeding funnel, a discharge pipe, two solenoid valves, an upper screen plate, and a lower screen plate. The upper screen plate intercepts larger particles, the lower screen plate separates medium-sized particles, and the smallest particles are discharged through the discharge pipe, forming a complete particle size grading system. At the same time, the concave structure design of the bottom of the grading cylinder, combined with the precise control of the solenoid valves, allows materials of different particle sizes to be discharged in an orderly and efficient manner through their respective outlets, avoiding material retention and mixing, and achieving the dual effects of accurate grading and efficient discharge.

[0022] 2. This utility model, through the design of the tilting mechanism, realizes the pendulum-like motion of the grading cylinder within a suitable angle range. The motor drives the rotating roller through the pulley and belt transmission system, causing the grading cylinder to oscillate periodically. This motion mode greatly increases the contact frequency and collision probability between the material and the screen plate, effectively avoiding screen hole clogging and significantly improving screening efficiency and accuracy. At the same time, in conjunction with the coordinated work of the two discharge troughs on the outer wall of the grading cylinder and the shielding mechanism, when unloading is required, the electric cylinder drives the baffle to rise, exposing the discharge trough. The grading cylinder tilts under the action of the tilting mechanism, allowing the material on the upper and lower screen plates to be discharged quickly and completely without manual intervention, achieving the effect of automated and efficient unloading. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the grading cylinder in this utility model;

[0025] Figure 3 This is a schematic diagram of the overall structure of the tilting mechanism in this utility model;

[0026] Figure 4This is a schematic diagram of the overall structure of the shielding mechanism in this utility model;

[0027] The meanings of the labels in the diagram are as follows:

[0028] 1. Base plate; 2. Grading cylinder; 21. Feed hopper; 22. Discharge pipe; 23. Solenoid valve; 24. Upper screen plate; 25. Lower screen plate; 3. Tilting mechanism; 31. Frame; 32. Rotary roller; 33. Rotating rod; 34. Motor; 35. Rotating shaft; 36. Pulley; 37. Belt; 4. Blocking mechanism; 41. Baffle; 42. Fixed column; 43. Vertical plate; 44. Electric cylinder; 45. Guide block. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0030] Please see Figures 1-2 This utility model provides a technical solution: a particle classifier for metallurgical auxiliary material production, including a base plate 1, a classifier cylinder 2 above the base plate 1, an upper screen plate 24 and a lower screen plate 25 for classifying particles installed on the inner wall of the classifier cylinder 2, and two unloading troughs for unloading material on the side wall of the classifier cylinder 2.

[0031] The thickness of the base plate 1 is 2-6cm, and the bottom surface of the base plate 1 is provided with anti-slip texture;

[0032] A feed hopper 21 connected to its inner cavity is fixed on the top surface of the classifying cylinder 2, and a discharge pipe 22 connected to its inner cavity is fixed at the bottom end of the classifying cylinder 2. Solenoid valves 23 are installed on the outer walls of both the discharge pipe 22 and the feed hopper 21.

[0033] The parts of the grading cylinder 2 that come into contact with the feed hopper 21 and the discharge pipe 22 are all equipped with sealing rings. The bottom of the grading cylinder 2 has a structure that is concave from all sides to the center. The upper screen plate 24 is located above the lower screen plate 25. The dimensions of the upper screen plate 24 and the lower screen plate 25 are adapted to the inner cavity dimensions of the grading cylinder 2. The two discharge grooves on the outer wall of the grading cylinder 2 are arranged from top to bottom. The upper screen plate 24 is located between the two discharge grooves on the outer wall of the grading cylinder 2, and the lower screen plate 25 is located below the two discharge grooves on the outer wall of the grading cylinder 2.

[0034] The metallurgical auxiliary material particle classification is achieved by setting up a base plate 1, a classification cylinder 2, a feeding funnel 21, a discharge pipe 22, a solenoid valve 23, an upper screen plate 24, and a lower screen plate 25. The material enters the classification cylinder through the feeding funnel, is classified through different screen plates, and is then discharged through the discharge pipe. The solenoid valve controls the material in and out, making the operation simple and efficient.

[0035] The thickness of the base plate 1 is preferably 5cm, which makes the equipment more stable and less prone to displacement due to vibration and other factors during operation, thus ensuring the stability and safety of the classifier.

[0036] By setting sealing rings at the contact points between the classifying cylinder 2 and the feed funnel 21 and the discharge pipe 22, and by designing the bottom of the classifying cylinder 2 as a structure that is concave from all sides to the center, the equipment has better sealing performance, preventing material leakage. At the same time, it is conducive to the concentrated discharge of material into the discharge pipe, thereby improving the discharge efficiency.

[0037] In this embodiment, as Figure 1 , Figure 3 As shown, it also includes: a tilting mechanism 3, which is set on the top surface of the base plate 1 and is used to tilt the grading cylinder 2. The tilting mechanism 3 includes a frame 31 fixed on the top surface of the base plate 1, two rollers 32 fixed on the outer wall of the grading cylinder 2 and rotatably connected to the two vertical plate ends of the frame 31, a rotating rod 33 coaxially fixed on the surface of one of the rollers 32 away from the grading cylinder 2, and a motor 34 installed on the outer wall of one of the vertical plate ends of the frame 31 and used to drive the rotating rod 33 to rotate.

[0038] The tilting mechanism 3 also includes a rotating shaft 35 rotatably connected to one of the vertical plate ends of the frame 31, and two pulleys 36 located above the base plate 1 and connected by a belt 37. The two pulleys 36 are coaxially fixed on the outer circumference of the rotating shaft 35 and the rotating rod 33, respectively, and the output shaft of the motor 34 is coaxially connected to the rotating shaft 35.

[0039] Through the coordinated action of components such as frame 31, rotating roller 32, rotating rod 33, motor 34, rotating shaft 35 and pulley 36 in the tilting mechanism 3, the grading cylinder 2 can perform pendulum-like motion within a suitable angle range, increasing the contact and collision opportunities between the material and the screen plate, thereby more fully screening the material and improving the screening accuracy and efficiency.

[0040] In addition, such as Figures 1-2 , Figure 4 As shown, it also includes: a shielding mechanism 4, which is set on the outer wall of the grading cylinder 2 and is used to shield the two unloading troughs on the outer wall of the grading cylinder 2. The shielding mechanism 4 includes two baffles 41 that are slidably connected to the outer wall of the grading cylinder 2, a vertical plate 43 fixed on the top surface of the grading cylinder 2, and an electric cylinder 44 installed on the outer wall of the vertical plate 43 and used to drive the two baffles 41 to rise and fall.

[0041] Two baffles 41 are arranged from top to bottom and are fixedly connected by two fixed columns 42. The baffles 41 are tightly attached to the outer wall of the classifying cylinder 2. The positions of the baffles 41 and the discharge chute on the same side of the outer wall of the classifying cylinder 2 are corresponding and the sizes are compatible. The vertical plate 43 is L-shaped. The cylinder body of the electric cylinder 44 is installed on the top surface of the horizontal plate end of the vertical plate 43. The piston rod of the electric cylinder 44 passes through the horizontal plate end of the vertical plate 43 and is fixed on the top surface of the upper baffle 41.

[0042] The outer wall of the grading cylinder 2 is provided with two vertically arranged guide grooves, and the outer wall of the baffle 41 is fixed with two guide blocks 45 that are slidably connected to the guide grooves on the same side of the outer wall of the grading cylinder 2.

[0043] The cross-sectional shape of the guide groove on the outer wall of the grading cylinder 2 is convex, and the shape of the guide block 45 is convex, which matches the shape of the guide groove on the outer wall of the grading cylinder 2.

[0044] Through the design of the baffle 41, fixed column 42, upright plate 43, electric cylinder 44 in the shielding mechanism 4, as well as the guide groove on the outer wall of the grading cylinder 2 and the guide block 45 of the baffle 41, the opening and closing of the unloading chute can be precisely controlled. When unloading is required, the electric cylinder 44 drives the baffle to rise, exposing the unloading chute. The tilting mechanism 3 drives the grading cylinder 2 to tilt, and the material is smoothly unloaded, realizing automated unloading and improving the convenience and efficiency of unloading.

[0045] It should be added that the two solenoid valves 23, the motor 34, and the electric cylinder 44 are all electrically connected to the external PLC via wires, and the two solenoid valves 23, the motor 34, and the electric cylinder 44 are all electrically connected to the external power supply via wires, and the external PLC is also electrically connected to the external power supply via wires.

[0046] Finally, it should be noted that the two solenoid valves 23, motor 34, electric cylinder 44 and other components involved in this utility model are all general standard parts or components known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components and the matching controller and power supply, are connected by wires. The specific connection method should refer to the working principle in this utility model. The electrical connection between each electrical component is completed in the order of operation. The detailed connection method is a technology known in the art.

[0047] In this embodiment, during actual use, the solenoid valve 23 at the feed hopper 21 is first opened by the PLC, and the material enters the classifier cylinder 2 through the feed hopper. Then the solenoid valve 23 is closed.

[0048] Next, the PLC starts the motor 34, which drives the rotating rod 33 and the rotating roller 32 through the pulley 36 and the rotating shaft 35, so that the grading cylinder 2 makes a pendulum motion within a certain angle range. The material is in full contact with the upper screen plate 24 and the lower screen plate 25 in the grading cylinder to achieve particle grading.

[0049] After grading is completed, the PLC controls the electric cylinder 44 to extend, driving the baffle 41 to rise and expose the unloading chute on the side wall of the grading cylinder 2. At the same time, the motor 34 is started to rotate in the opposite direction, causing the grading cylinder to tilt. The material on the upper screen plate and the lower screen plate is discharged from the corresponding unloading chute. After unloading is completed, the PLC controls the electric cylinder to retract, the baffle plate descends to block the unloading chute, the motor stops, and the grading cylinder resets.

[0050] Finally, the PLC opens the solenoid valve 23 at the discharge pipe 22, and the fine particles at the bottom of the grading cylinder that have been screened are discharged through the discharge pipe. After the discharge is completed, the solenoid valve is closed, completing a complete grading and discharge process.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A particle classifier for metallurgical auxiliary material production, comprising a base plate (1), characterized in that, A grading cylinder (2) is provided above the base plate (1). An upper sieve plate (24) and a lower sieve plate (25) for grading particles are installed on the inner wall of the grading cylinder (2). Two discharge troughs for unloading are provided on the side wall of the grading cylinder (2). The grading cylinder (2) also includes: The tilting mechanism (3) is set on the top surface of the base plate (1) and is used to tilt the grading cylinder (2). The tilting mechanism (3) includes a frame (31) fixed on the top surface of the base plate (1), two rollers (32) fixed on the outer wall of the grading cylinder (2) and rotatably connected to the two vertical plate ends of the frame (31), a rotating rod (33) coaxially fixed on the surface of one of the rollers (32) away from the grading cylinder (2), and a motor (34) installed on the outer wall of one of the vertical plate ends of the frame (31) and used to drive the rotating rod (33) to rotate. The shielding mechanism (4) is set on the outer wall of the grading cylinder (2) and is used to shield the two unloading troughs on the outer wall of the grading cylinder (2). The shielding mechanism (4) includes two baffles (41) slidably connected to the outer wall of the grading cylinder (2), a vertical plate (43) fixed on the top surface of the grading cylinder (2), and an electric cylinder (44) installed on the outer wall of the vertical plate (43) and used to drive the two baffles (41) to rise and fall.

2. The particle classifier for metallurgical auxiliary material production according to claim 1, characterized in that: The thickness of the base plate (1) is 2-6cm, and the bottom surface of the base plate (1) is provided with anti-slip texture.

3. The particle classifier for metallurgical auxiliary material production according to claim 1, characterized in that: The top surface of the grading cylinder (2) is fixed with a feed funnel (21) that communicates with its inner cavity, and the bottom end of the grading cylinder (2) is fixed with a discharge pipe (22) that communicates with its inner cavity. Solenoid valves (23) are installed on the outer walls of the discharge pipe (22) and the feed funnel (21).

4. The particle classifier for metallurgical auxiliary material production according to claim 3, characterized in that: The grading cylinder (2) is provided with sealing rings at the contact points with the feed funnel (21) and the discharge pipe (22). The bottom of the grading cylinder (2) has a structure that is concave from all sides to the center. The upper screen plate (24) is located above the lower screen plate (25). The dimensions of the upper screen plate (24) and the lower screen plate (25) are adapted to the inner cavity dimensions of the grading cylinder (2). The two discharge grooves on the outer wall of the grading cylinder (2) are arranged from top to bottom. The upper screen plate (24) is located between the two discharge grooves on the outer wall of the grading cylinder (2), and the lower screen plate (25) is located below the two discharge grooves on the outer wall of the grading cylinder (2).

5. The particle classifier for metallurgical auxiliary material production according to claim 1, characterized in that: The tilting mechanism (3) also includes a rotating shaft (35) rotatably connected to one of the vertical plates of the frame (31), and two pulleys (36) located above the base plate (1) and connected by a belt (37). The two pulleys (36) are coaxially fixed on the outer circumference of the rotating shaft (35) and the rotating rod (33), respectively, and the output shaft of the motor (34) is coaxially connected to the rotating shaft (35).

6. The particle classifier for metallurgical auxiliary material production according to claim 1, characterized in that: The two baffles (41) are arranged from top to bottom and are fixedly connected by two fixed columns (42). The baffles (41) are tightly attached to the outer wall of the classifying cylinder (2). The positions of the baffles (41) and the discharge troughs on the same side of the outer wall of the classifying cylinder (2) are corresponding and the sizes are compatible. The vertical plate (43) is L-shaped. The cylinder body of the electric cylinder (44) is installed on the top surface of the horizontal plate end of the vertical plate (43). The piston rod of the electric cylinder (44) passes through the horizontal plate end of the vertical plate (43) and is fixed on the top surface of the upper baffle (41).

7. The particle classifier for metallurgical auxiliary material production according to claim 6, characterized in that: The outer wall of the grading cylinder (2) is provided with two vertically arranged guide grooves, and the outer wall of the baffle (41) is fixed with two guide blocks (45) that are slidably connected to the guide grooves on the same side of the outer wall of the grading cylinder (2).

8. The particle classifier for metallurgical auxiliary material production according to claim 7, characterized in that: The cross-sectional shape of the guide groove on the outer wall of the grading cylinder (2) is convex, and the shape of the guide block (45) is convex, which is adapted to the shape of the guide groove on the outer wall of the grading cylinder (2).

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