Regenerated pig iron screening device capable of adjusting feeding granularity

Abstract

The regenerated pig iron screening device comprises a grading screening machine box, a pretreatment box and a coarse screening assembly, a feeding mechanism is installed on the top of the side face of the grading screening machine box, and the pretreatment box is placed on the side face, close to the feeding mechanism, of the grading screening machine box and located below the feeding mechanism. The coarse screening assembly is arranged in an inner cavity of the top of the pretreatment box, an inclined guide plate is arranged below the coarse screening assembly, the outer surface of the inclined guide plate and the inner surface of the bottom of the pretreatment box are fixedly installed, a collecting box is fixedly installed on the side face, away from the feeding sleeve and the discharging sleeve, of the pretreatment box, and a vertical spiral feeding machine is fixedly installed on the side face of the collecting box. The raw materials are pretreated through the coarse screening assembly, the feeding granularity range of the raw materials entering the grading screening machine box to be screened is adjusted to a certain degree, the follow-up refining effect and efficiency are improved, and the interference problem of large-particle raw materials on small-particle raw materials is solved.

Description

Technical Field

[0001] This utility model relates to the field of recycled pig iron screening technology, and more specifically, to a recycled pig iron screening device with adjustable feed particle size. Background Technology

[0002] Recycled pig iron screening refers to the process of crushing and removing impurities from recycled waste pig iron, and then classifying it according to particle size using a vibrating screen or drum screen.

[0003] A search revealed CN218835172U, which discloses a filtration device with screening function for iron powder recycling and processing. The device includes a feeding assembly comprising a processing box, a feeding pipe, a storage bucket, an auger rod, a motor, and a connecting plate. The feeding pipe is fixedly inserted into the side of the processing box, the storage bucket is fixedly inserted into the side of the feeding pipe, the auger rod is rotatably connected to the inner wall of the feeding pipe, the connecting plate is fixedly connected to the side of the processing box, and the motor is fixedly connected to the side of the connecting plate.

[0004] However, this type of filtration device with screening function for iron powder recycling still has the following drawbacks. For example, different application scenarios have different requirements for the particle size of recycled pig iron after fine screening. The feeding system of the above-mentioned device lacks a pre-screening function, making it unable to screen out particles within a specific range. This problem is particularly pronounced when finely screening small-particle pig iron: large particles entering the processing box will increase the load on the screening system, interfere with the screening of small particles, and are more likely to cause screen blockage, reducing screening accuracy and affecting overall efficiency and quality. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a recycled pig iron screening device with adjustable feed particle size, so as to solve the problem that the recycled pig iron screening device in the prior art lacks a pre-screening function, and the unfiltered large particles increase the load, interfere with the screening of small particles, and affect efficiency and quality.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a recycled pig iron screening device with adjustable feed particle size, comprising...

[0007] A grading and screening machine housing, wherein a feeding mechanism is installed on the top of the side of the grading and screening machine housing;

[0008] A pretreatment box is placed on the side of the grading and screening machine box near the feeding mechanism and below the feeding mechanism. A feeding sleeve is fixedly installed on one side of the top of the pretreatment box, and a discharge sleeve is fixedly installed on the other side.

[0009] A coarse screening assembly is located in the inner cavity at the top of the pretreatment box. An inclined guide plate is located below the coarse screening assembly. The outer surface of the inclined guide plate is fixedly installed with the inner surface of the bottom of the pretreatment box. A collection box is fixedly installed on the side of the pretreatment box away from the feed sleeve and discharge sleeve. A vertical screw feeder is fixedly installed on the side of the collection box. The outer surface of the feed pipe at the bottom of the vertical screw feeder is fixedly sleeved with the inner surface of the side wall of the collection box, and the end of the discharge pipe at the top is located above the feed hopper of the feeding mechanism.

[0010] The coarse screening component includes a drum screen and a motor. The outer edges of both ends of the drum screen are rotatably installed on the inner walls of both sides of the pretreatment box. Multiple guide plates are provided inside the drum screen. A toothed ring is fixedly sleeved on the outer surface of the drum screen near the discharge sleeve. The outer surface of the motor is fixedly installed on the top of the pretreatment box, and a gear is fixedly sleeved on the output end. The gear and the toothed ring mesh with each other.

[0011] The grading and screening machine has multiple discharge ports on the side away from the feeding mechanism, and two conveyor belt mechanisms are arranged in close contact with the outer surface of the feeding mechanism. The two conveyor belt mechanisms are arranged overlapping each other, and auxiliary material changing components are provided at the ends of each other that are far apart from each other.

[0012] The auxiliary material changing assembly includes a fixed box and an electric telescopic rod. The fixed box is placed at the end of the conveyor belt mechanism, and a movable box is slidably installed on its inner surface. Two electric telescopic rods are arranged in parallel, and the outer surfaces of the bottom ends of the two electric telescopic rods are respectively fixedly installed on the inner surfaces of the two ends of the conveyor belt mechanism near the fixed box. Baffles are fixedly installed on the top ends of the two electric telescopic rods.

[0013] The bottom of the inner cavity of the feed sleeve is inclined, and a collection box is placed at the bottom of the discharge pipe of the discharge sleeve.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In the above scheme, by setting up structures such as a coarse screening component and a vertical screw conveyor, after the scrap pig iron is crushed and impurities are removed, the workers feed it in through the feed pipe at the top of the feed sleeve, and it slides along the inner wall into the coarse screening component. At this time, the workers control the coarse screening component to screen the introduced pig iron raw material. Based on the mesh diameter of the drum screen, small-diameter particles within a certain specification range are screened out, and the small particles slide into the inside of the collection box along the inclined guide plate. Then, through the lifting handle of the connected vertical screw conveyor, they are discharged from the discharge pipe of the vertical screw conveyor into the hopper of the feeding mechanism. With the help of the feeding mechanism, they are guided into the grading and screening box for further fine screening. Thus, the pretreatment of the raw material by the coarse screening component can, to a certain extent, adjust the particle size range of the raw material entering the grading and screening box, improve the effect and efficiency of subsequent fine screening, and reduce the interference of large particles on small particles.

[0016] In the above scheme, by setting up an auxiliary material changing component, when the material is discharged from the side away from the feeding mechanism after being screened by the grading and screening box, the material can be fed into the movable boxes at both ends by two sets of overlapping conveyor belts installed on the surface of the grading and screening box, with opposite transmission directions. When the material is full, the operator can retract the electric telescopic rod, causing the baffle installed at the top to come into contact with the surface of the conveyor belt, intercepting the material on the side of the baffle. After emptying the material inside the movable box and placing the movable box back into the fixed box, the baffle is raised. This allows the operator to change the raw materials without stopping the machine, improving production continuity and efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the pretreatment box, feeding sleeve, coarse screening component, etc. of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the coarse screening component, inclined guide plate, collection box, etc. of this utility model;

[0020] Figure 4 This is a schematic diagram of the conveyor belt mechanism and auxiliary material changing component of this utility model.

[0021] [Figure Labels]

[0022] 1. Grading and screening machine casing; 2. Feeding mechanism; 3. Pre-treatment box; 4. Feeding sleeve; 5. Coarse screening component; 50. Rotary drum screen; 51. Guide plate; 52. Motor; 53. Gear; 54. Gear ring; 6. Discharge sleeve; 7. Inclined guide plate; 8. Collection box; 9. Vertical screw feeder; 10. Conveyor belt mechanism; 11. Auxiliary material changing component; 110. Fixed box; 111. Movable box; 112. Electric telescopic rod; 113. Baffle. Detailed Implementation

[0023] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0024] As attached Figure 1 To be continued Figure 4 An embodiment of this utility model provides a recycled pig iron screening device with adjustable feed particle size, including...

[0025] A grading and screening machine box 1 is provided with a feeding mechanism 2 installed on the top side of the grading and screening machine box 1.

[0026] The pretreatment box 3 is placed on the side of the grading and screening machine box 1 near the feeding mechanism 2 and below the feeding mechanism 2. A feeding sleeve 4 is fixedly installed on one side of the top of the pretreatment box 3, and a discharge sleeve 6 is fixedly installed on the other side.

[0027] The coarse screening component 5 is located in the inner cavity at the top of the pretreatment box 3. An inclined guide plate 7 is located below the coarse screening component 5. The outer surface of the inclined guide plate 7 is fixedly installed with the inner surface of the bottom of the pretreatment box 3. A collection box 8 is fixedly installed on the side of the pretreatment box 3 away from the feed sleeve 4 and the discharge sleeve 6. A vertical screw feeder 9 is fixedly installed on the side of the collection box 8. The outer surface of the feed pipe at the bottom of the vertical screw feeder 9 is fixedly sleeved with the inner surface of the side wall of the collection box 8, and the end of the discharge pipe at the top is located above the feed hopper of the feeding mechanism 2.

[0028] By setting up a vertical screw feeder 9, which is a high-efficiency and continuous conveying device for powdery and granular materials in the existing equipment, the material is lifted upward along the vertical pipe by rotating the screw blades driven by the motor.

[0029] By setting up a conveyor belt mechanism 10, which is an existing belt conveyor equipment, generally composed of a belt, rollers, drive unit, frame, etc., the conveyor belt mechanism 10 drives the rollers to rotate through a motor, causing the belt to circulate and thus smoothly transport bulk materials or packaged goods.

[0030] The coarse screening component 5 includes a drum screen 50 and a motor 52. The outer edges of both ends of the drum screen 50 are rotatably installed on the inner walls of both sides of the pretreatment box 3. Multiple guide plates 51 are provided inside the drum screen 50. A toothed ring 54 is fixedly sleeved on the outer surface of the drum screen 50 near the discharge sleeve 6. The outer surface of the motor 52 is fixedly installed on the top of the pretreatment box 3, and a gear 53 is fixedly sleeved on the output end. The gear 53 and the toothed ring 54 mesh with each other.

[0031] By setting up the coarse screening component 5, during screening, the operator controls the motor 52 to start, and the gear 53 fixedly sleeved at its output end will rotate, driving the meshing gear ring 54 and the drum screen 50 sleeved inside the gear ring 54 to rotate. The drum screen 50 rotates along the inner walls on both sides of the top of the pretreatment box 3 to screen the raw materials inside. Small particles of raw materials fall into the collection box 8 through the inclined guide plate 7, while large particles of raw materials remain inside the guide plate 51 and are transported and discharged towards the discharge sleeve 6 through the guide plate 51.

[0032] The grading and screening machine 1 has multiple discharge ports on the side away from the feeding mechanism 2, and two conveyor belt mechanisms 10 are arranged in close contact with the outer surface of the feeding mechanism 2. The two conveyor belt mechanisms 10 are arranged overlapping each other, and each of them has an auxiliary material changing component 11 at the ends that are far apart from each other.

[0033] The auxiliary material changing component 11 includes a fixed box 110 and an electric telescopic rod 112. The fixed box 110 is placed at the end of the conveyor belt mechanism 10, and a movable box 111 is slidably installed on its inner surface. Two electric telescopic rods 112 are arranged in parallel, and the outer surfaces of the bottom ends of the two electric telescopic rods 112 are fixedly installed on the inner surfaces of the two sides of the end of the conveyor belt mechanism 10 near the fixed box 110, respectively. Baffles 113 are fixedly installed on the top ends of the two electric telescopic rods 112.

[0034] The bottom of the inner cavity of the feed sleeve 4 is inclined, and a collection box is placed at the bottom of the discharge pipe of the discharge sleeve 6.

[0035] The working process of this utility model is as follows:

[0036] After the scrap pig iron is crushed and impurities are removed, the workers feed it into the feed pipe at the top of the feed sleeve 4, and it slides along the inner wall into the coarse screening component 5. At this time, the workers control the coarse screening component 5 to screen the imported pig iron raw material. Based on the mesh diameter of the drum screen 50, small diameter particles within a certain specification range are screened out. The small particles slide along the inclined guide plate 7 into the collection box 8, and then are fed through the lifting handle of the vertical screw feeder 9. They are discharged from the discharge pipe of the vertical screw feeder 9 into the hopper of the feeding mechanism 2. With the help of the feeding mechanism 2, they are guided into the grading and screening box 1 for further fine screening.

[0037] In addition, when the material is discharged from the side away from the feeding mechanism 2 after screening by the grading and screening box 1, the material can be fed into the movable boxes 111 at both ends by two sets of overlapping conveyor belt mechanisms 10 with opposite transmission directions and attached to the surface of the grading and screening box 1. When the material is full, the operator can retract the electric telescopic rod 112 to drive the baffle 113 installed at the top to attach to the surface of the conveyor belt mechanism 10, intercepting the material on the side of the baffle 113. After emptying the material inside the movable box 111 and placing the movable box 111 back into the fixed box 110, the baffle 113 is controlled to rise.

[0038] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0039] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0040] 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 recycled pig iron screening device with adjustable feed particle size, characterized in that, include A grading and screening machine box (1) is provided with a feeding mechanism (2) installed on the top of the side of the grading and screening machine box (1); The pretreatment box (3) is placed on the side of the grading and screening machine box (1) near the feeding mechanism (2) and below the feeding mechanism (2). A feeding sleeve (4) is fixedly installed on one side of the top of the pretreatment box (3), and a discharge sleeve (6) is fixedly installed on the other side. A coarse screening component (5) is set in the inner cavity at the top of the pretreatment box (3). An inclined guide plate (7) is set below the coarse screening component (5). The outer surface of the inclined guide plate (7) is fixedly installed with the inner surface of the bottom of the pretreatment box (3). A collection box (8) is fixedly installed on the side of the pretreatment box (3) away from the feed sleeve (4) and the discharge sleeve (6). A vertical screw feeder (9) is fixedly installed on the side of the collection box (8). The outer surface of the feed pipe at the bottom of the vertical screw feeder (9) is fixedly sleeved with the inner surface of the side wall of the collection box (8), and the end of the discharge pipe at the top is set above the feed hopper of the feeding mechanism (2).

2. The adjustable feed particle size recycling pig iron screening device according to claim 1, characterized in that, The coarse screening component (5) includes a drum screen (50) and a motor (52). The outer edges of both ends of the drum screen (50) are rotatably installed on the inner walls of both sides of the pretreatment box (3). Multiple guide plates (51) are provided inside the drum screen (50). A toothed ring (54) is fixedly sleeved on the outer surface of the drum screen (50) near the discharge sleeve (6). The outer surface of the motor (52) is fixedly installed on the top of the pretreatment box (3), and a gear (53) is fixedly sleeved on the output end. The gear (53) and the toothed ring (54) mesh with each other.

3. The adjustable feed particle size recycled pig iron screening device according to claim 1, characterized in that, The grading and screening machine box (1) has multiple discharge ports on the side away from the feeding mechanism (2), and two conveyor belt mechanisms (10) are provided on the outer surface of the feeding mechanism (2). The two conveyor belt mechanisms (10) are arranged overlapping each other, and auxiliary material changing components (11) are provided at the ends of each other.

4. The adjustable feed particle size recycled pig iron screening device according to claim 3, characterized in that, The auxiliary material changing assembly (11) includes a fixed box (110) and an electric telescopic rod (112). The fixed box (110) is placed at the end of the conveyor belt mechanism (10), and a movable box (111) is slidably installed on its inner surface. Two electric telescopic rods (112) are arranged in parallel, and the outer surfaces of the bottom ends of the two electric telescopic rods (112) are respectively fixedly installed on the inner surfaces of the two sides of the end of the conveyor belt mechanism (10) near the fixed box (110). A baffle (113) is fixedly installed on the top of the two electric telescopic rods (112).

5. The adjustable feed particle size recycled pig iron screening device according to claim 1, characterized in that, The bottom of the inner cavity of the feed sleeve (4) is inclined, and a collection box is placed at the bottom of the discharge pipe of the discharge sleeve (6).

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