A raw material filtering device for pellet production

Abstract

The utility model discloses a raw material filtering device for pellet production, including several equal interval settings of parallelly arranged rotating stick, both ends of rotating stick are with the both sides of half enclosure board rotatory connection, and the one end of rotating stick is with drive motor transmission connection, and drive motor installs on the one side lateral wall of half enclosure board, and installs on the both sides lateral wall top end of half enclosure board all has the vertical board, and installs the oil cylinder on the lateral wall of vertical board, and the piston rod of oil cylinder passes through vertical board and extends to the above of rotating stick, the utility model has the advantages of: through several equal interval settings of parallelly arranged rotating stick, can filter out the solid impurity that carries in the iron concentrate powder, and the rotating rotating stick in rotation can automatically clean up the solid impurity that filters out, thereby has improved the filtering effect of iron concentrate powder, has guaranteed the normal production progress of subsequent pellet, has also reduced the labor intensity of on -the -spot operator, and has eliminated the potential safety hazard.

Description

Technical fields:

[0001] This utility model belongs to the field of pellet production, and in particular relates to a raw material filtration device for pellet production. Background technology:

[0002] Pelletizing is one of the important methods for agglomerating mineral powder. First, the mineral powder is mixed with an appropriate amount of water and binder to form green pellets with uniform viscosity and sufficient strength. After drying and preheating, these green pellets are calcined in an oxidizing atmosphere to agglomerate, thus producing pelletized ore. This method is particularly suitable for processing fine mineral concentrates.

[0003] Iron concentrate is one of the raw materials for pellet production. During the transfer of iron concentrate, it inevitably contains large solid impurities (such as stones and bricks). Therefore, the iron concentrate needs to be filtered before entering the pellet production system. Current technology typically uses filter screens to filter the iron concentrate. While this method has low investment costs, the filtered solid impurities accumulate on the screen surface. Furthermore, the structure of the filter screen itself reduces the flow rate of the iron concentrate, resulting in low filtration efficiency and affecting the subsequent pellet production schedule. Additionally, the solid impurities filtered by the screen need to be manually removed by on-site personnel, which is not only time-consuming and labor-intensive but also poses certain safety hazards. Summary of the Invention:

[0004] The purpose of this invention is to provide a raw material filtration device for pellet production, and to overcome the shortcomings of the prior art, effectively solving the existing problem of low raw material filtration efficiency in pellet production.

[0005] The present invention relates to a raw material filtration device for pellet production, comprising a plurality of rotating rollers arranged side by side at equal intervals. Both ends of each rotating roller are rotatably connected to the side walls of a semi-enclosed plate. One end of each rotating roller is connected to a drive motor, which is mounted on one side wall of the semi-enclosed plate. Vertical plates are mounted on the top of both side walls of the semi-enclosed plate. A hydraulic cylinder is mounted on the outer side wall of the vertical plate. The piston rod of the hydraulic cylinder extends through the vertical plate to the top of the rotating roller. A lever is vertically arranged in the gap between two adjacent rotating rollers. The top end of the lever is fixedly connected to a cantilever, which is mounted on the piston rod of the hydraulic cylinder.

[0006] Furthermore, sliding holes are provided at both ends of the cantilever, and sliding rods are slidably connected in the sliding holes. Both ends of the sliding rods are fixedly connected to the inner sidewall of the upright plate.

[0007] Furthermore, a material collection hopper is provided below the rotating roller, and the bottom wall of the semi-enclosed plate is fixedly connected to the top wall of the material collection hopper.

[0008] Furthermore, a waste collection hopper is provided below the discharge end of the rotating roller.

[0009] Furthermore, several of the rotating rollers are arranged side by side at equal intervals, tilted downwards at an angle.

[0010] The beneficial effects of this utility model are as follows: By using several rotating rollers arranged side by side at equal intervals, solid impurities carried in iron concentrate can be filtered out. At the same time, the rotating rollers can automatically clean up the filtered solid impurities, thereby improving the filtration effect of iron concentrate, ensuring the normal production progress of subsequent pellets, reducing the labor intensity of on-site workers, and eliminating safety hazards. Attached image description:

[0011] Figure 1 This is a partial cross-sectional view of the main view of this utility model;

[0012] Figure 2 This is a top view of the present invention;

[0013] In the diagram, 1 is a rotating roller, 2 is a half-enclosure plate, 3 is a drive motor, 4 is a vertical plate, 5 is a hydraulic cylinder, 6 is a lever, 7 is a cantilever, 8 is a sliding rod, 9 is a collection hopper, 10 is a waste collection hopper, and 11 is a discharge hopper. Detailed implementation method:

[0014] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings:

[0015] like Figures 1 to 2 As shown, a raw material filtration device for pellet production includes several rotating rollers 1 arranged side by side at equal intervals. Both ends of each rotating roller 1 are rotatably connected to the side walls of a semi-enclosed plate 2. One end of each rotating roller 1 is connected to a drive motor 3, which is mounted on one side wall of the semi-enclosed plate 2. Vertical plates 4 are installed at the top of both side walls of the semi-enclosed plate 2. Hydraulic cylinders 5 are installed on the outer side walls of the vertical plates 4. The piston rods of the hydraulic cylinders 5 extend through the vertical plates 4 to the top of the rotating rollers 1, and are vertically positioned in the gaps between adjacent rotating rollers 1. There is a lever 6, the top end of which is fixedly connected to a cantilever 7. The cantilever 7 is mounted on the piston rod of the oil cylinder 5. Sliding holes are provided at both ends of the cantilever 7, and a sliding rod 8 is slidably connected in the sliding holes. Both ends of the sliding rod 8 are fixedly connected to the inner side wall of the vertical plate 4. A collection hopper 9 is provided below the rotating roller 1. The bottom wall of the semi-enclosed plate 2 is fixedly connected to the top wall of the collection hopper 9. A waste collection hopper 10 is provided below the discharge end of the rotating roller 1. Several rotating rollers 1 are arranged side by side at equal intervals with an angled downward orientation.

[0016] Specifically, by using several rotating rollers 1 arranged side by side at equal intervals, solid impurities carried in the iron concentrate can be filtered out, and the rotating rollers 1 can automatically clean up the filtered solid impurities.

[0017] In actual use, the raw iron concentrate stored in the hopper 11 is fed onto several rotating rollers 1 arranged side by side at equal intervals. Because of its small size, the powdery iron concentrate can smoothly flow through the gap between adjacent rotating rollers 1 into the collection hopper 9 below. Larger solid impurities carried in the iron concentrate cannot pass through the gap and are blocked between the two rotating rollers 1, thus filtering out the solid impurities. During this process, the rotating rollers 1, rotating in the same direction, gradually convey the filtered solid impurities to the discharge end of the rollers 1 and finally drop them into the waste collection hopper 10. Each rotating roller 1 has its own corresponding drive motor 3 to transmit driving force, enabling each roller 1 to generate a large conveying force, further facilitating the filtration of solid impurities. Solid impurities are conveyed away; when the filtered solid impurities still remain in the gap between two adjacent rotating rollers 1, the on-site personnel can start the hydraulic cylinder 5 and drive the cantilever 7 to move. At this time, the cantilever 7 drives the lever 6 to move in the gap between two adjacent rotating rollers 1. When the lever 6 comes into contact with the solid impurities, it can change its stopping position, thereby making it easier for the rotating roller 1 to transmit them to the waste collection hopper 10; the cantilever 7 slides on the slide bar 8, making its movement direction more stable; the hydraulic cylinder 5 can also be controlled to reciprocate using the existing PLC controller, thereby achieving the effect of automatically cleaning solid impurities; several rotating rollers 1 are arranged side by side at equal intervals with an angled downward orientation, which further facilitates the rapid transmission of the filtered solid impurities from the rotating rollers 1 to the waste collection hopper 10.

[0018] The above are merely preferred embodiments of the present utility model and are 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 shall be included within the protection scope of the present utility model.

Claims

1. A raw material filtration device for pellet production, characterized in that: The device includes several rotating rollers (1) arranged side by side at equal intervals. Both ends of each rotating roller (1) are rotatably connected to the two side walls of the semi-enclosed plate (2). One end of each rotating roller (1) is connected to a drive motor (3). The drive motor (3) is installed on one side wall of the semi-enclosed plate (2). A vertical plate (4) is installed at the top of each side wall of the semi-enclosed plate (2). A hydraulic cylinder (5) is installed on the outer side wall of the vertical plate (4). The piston rod of the hydraulic cylinder (5) extends through the vertical plate (4) to the top of the rotating roller (1). A lever (6) is vertically arranged in the gap between two adjacent rotating rollers (1). The top of the lever (6) is fixedly connected to a cantilever (7). The cantilever (7) is installed on the piston rod of the hydraulic cylinder (5).

2. The raw material filtration device for pellet production according to claim 1, characterized in that: Sliding holes are provided at both ends of the cantilever (7), and sliding rods (8) are slidably connected in the sliding holes. Both ends of the sliding rods (8) are fixedly connected to the inner sidewall of the upright plate (4).

3. The raw material filtration device for pellet production according to claim 1, characterized in that: A material collection hopper (9) is provided below the rotating roller (1), and the bottom wall of the semi-enclosed plate (2) is fixedly connected to the top wall of the material collection hopper (9).

4. The raw material filtration device for pellet production according to claim 1, characterized in that: A waste collection hopper (10) is provided below the discharge end of the rotating roller (1).

5. A raw material filtration device for pellet production according to claim 1, characterized in that: Several of the rotating rollers (1) are arranged side by side at equal intervals with the rollers tilted downwards at an angle.

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