A high-efficiency dry grinder for scrap steel slag

Abstract

The present invention relates to a high-efficiency dry grinder for waste steel slag, and belongs to the technical field of waste steel slag treatment in the metallurgical industry. The technical scheme is: comprising a drum (1), an inlet and outlet (2), a motor (3), a bracket (7), a fan (8), a lifting plate (10) and a blanking hole (11), the two ends of the drum (1) are respectively rotatably connected to the bracket (7), the motor (3) is drivingly connected to one end of the drum (1) through a transmission mechanism, and the other end of the drum (1) is provided with a fan (8); an inlet and outlet (2) is provided on one edge of the polygonal drum, a cover plate is provided on the inlet and outlet (2), and a plurality of blanking holes (11) are respectively provided on the other edges of the polygonal drum, and a lifting plate (10) is provided on each edge on the inner side of the polygonal drum. The beneficial effects of the present invention are: the powder can be effectively separated from the steel slag, the separation effect is good, the working efficiency is high, and it is safe and reliable.

Description

Technical Field

[0001] The invention relates to a high-efficiency dry grinder for waste steel slag, belonging to the technical field of waste steel slag treatment in the metallurgical industry. Background Art

[0002] In the process of recycling waste steel slag, rod mills are mostly used to process steel slag with an external size of less than 350mm, while hammering or brazing are used to process steel slag with an external size of more than 350mm. The hammering or brazing method is inefficient, noisy and unsafe. Summary of the invention

[0003] The purpose of the present invention is to provide a high-efficiency dry grinder for waste steel slag, which can effectively separate powder from steel slag, has good separation effect, high working efficiency, safety and reliability, and solves the problems existing in the background technology.

[0004] The technical solution of the present invention is:

[0005] A high-efficiency dry grinder for scrap steel slag comprises a drum, an inlet and outlet, a motor, a bracket, a fan, a lifting plate and a blanking hole. The two ends of the drum are rotatably connected to the bracket respectively, the motor is drivingly connected to one end of the drum through a transmission mechanism, and a fan is provided at the other end of the drum; the drum is polygonal, one edge of the polygonal drum is provided with an inlet and outlet, a cover plate is provided on the inlet and outlet, and a plurality of blanking holes are provided on the other edges of the polygonal drum respectively, and a lifting plate is provided on each edge on the inner side of the polygonal drum.

[0006] The drum is in the shape of a regular hexagon, and the inlet and outlet are rectangular openings, which are arranged on one edge of the drum; the lifting plate is formed by bending a rectangular plate, and is divided into a connecting plate and a bending plate, the connecting plate is fixed on the edge of the regular hexagonal drum, and the bending plate extends toward the inside of the drum in the same direction.

[0007] The bending angle of the rectangular plate is greater than 90 degrees.

[0008] The cover plate on the inlet and outlet is fixed on the drum by bolts.

[0009] The blanking hole on the roller is a tapered hole.

[0010] The fan blows air toward the inside of the drum along the axial direction of the drum.

[0011] The motor is fixed on a motor base.

[0012] The transmission mechanism of the motor comprises a belt pulley set and a speed regulator, and the motor is drivingly connected to the drum via the belt pulley set and the speed regulator.

[0013] The beneficial effects of the present invention are:

[0014] (1) The drum adopts a polygonal structure, and a lifting plate is set inside the drum to help turn the material and improve work efficiency;

[0015] (2) The function of the fan is to quickly separate the ground powder from the main material, greatly improving the grinding efficiency.

[0016] (3) The drop hole on the drum wall is conical, which can improve the separation efficiency of powder and grinded material.

[0017] (4) A sealed soundproof and dustproof cover can be installed on the outside of the entire equipment to reduce noise so that the noise value meets environmental protection requirements. At the same time, an exhaust fan is used to send the dust-containing gas in the sealed space of the soundproof and dustproof cover to the bag dust collector for treatment, so that the discharged dust-containing gas meets environmental protection requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 Schematic diagram of the internal structure of the drum;

[0020] Figure 3 It is a schematic diagram of the blanking hole on the roller;

[0021] Figure 4 for Figure 3 AA cross-section diagram;

[0022] In the figure: drum 1, inlet and outlet 2, motor 3, pulley group 4, speed regulator 5, motor base 6, bracket 7, fan 8, drum end air chamber 9, lifting plate 10, drop hole 11, connecting plate 12, bending plate 13. DETAILED DESCRIPTION

[0023] The present invention will be further described below by way of examples with reference to the accompanying drawings.

[0024] See attached Figure 1-4 A high-efficiency dry grinder for scrap steel slag comprises a drum 1, a material inlet and outlet 2, a motor 3, a bracket 7, a fan 8, a lifting plate 10 and a material drop hole 11. The two ends of the drum 1 are rotatably connected to the bracket 7 respectively, the motor 3 is drivingly connected to one end of the drum 1 through a transmission mechanism, and a fan 8 is provided at the other end of the drum 1; the drum 1 is polygonal, and a material inlet and outlet 2 is provided on one edge of the polygonal drum, a cover plate is provided on the material inlet and outlet 2, and a plurality of material drop holes 11 are respectively provided on the other edges of the polygonal drum, and a lifting plate 10 is provided on each edge on the inner side of the polygonal drum.

[0025] In this example, refer to the attached Figure 1 , 2The transmission mechanism of the motor 3 includes a pulley set 4 and a speed regulator 5, and the motor 3 is connected to the drum 1 through the pulley set 4 and the speed regulator 5. Different speeds of the drum 1 can be achieved through the pulley set 4 and the speed regulator 5, and this speed can be adjusted according to the material conditions.

[0026] See attached Figure 1 , 2 The drum 1 is in the shape of a regular hexagonal prism, and the inlet and outlet 2 are rectangular openings, which are arranged on an edge of the drum 1; the lifting plate 10 is formed by bending a rectangular plate, and is divided into a connecting plate 12 and a bending plate 13, the connecting plate is fixed on the edge of the regular hexagonal drum, and the bending plate extends toward the inside of the drum in the same direction, and the cover plate on the inlet and outlet 2 is fixed to the drum 1 by bolts.

[0027] See attached Figure 1 , 2 The blanking hole 11 is arranged in the middle of the drum 1. There is no blanking hole on the axial length of 300 mm at both ends of the drum 1, forming a relatively closed drum end wind chamber 9. After the wind blown in by the fan 8 reaches the drum end wind chamber 9, part of it returns, so that the solid material and the powdery material can be further separated.

[0028] See attached Figure 3 , 4 The blanking hole 11 on the roller 1 is a tapered hole.

[0029] The specific working process is as follows:

[0030] Open the inlet and outlet 2, pour the material into the drum 1, then fix the cover plate on the inlet and outlet with bolts, start the motor 3, and the drum 1 rotates. Due to the action of the lifting plate 10, the material can be raised in the drum 1, and then fall from a high point, realizing the self-grinding and collision of the material, and achieving the separation of the metal phase and the non-metal phase of the material. At the same time, the fan 8 installed at the other end of the drum 1 blows away the fine powder ground in the drum 1 to improve the efficiency of the self-grinding of the material. There is no drop hole on the axial length of 300mm at both ends of the drum, forming a relatively closed cylinder end wind chamber 9. After the wind blown in by the fan 8 reaches the cylinder end wind chamber 9, part of it returns, so that the solid material and the powdery material can be further separated. The powder falls from the drop hole 11 on the drum wall and is collected. After a working cycle is completed, the inlet and outlet 2 is turned to the bottom, the inlet and outlet 2 is opened, and the finished material is automatically discharged.

[0031] In addition, a sealed soundproof and dustproof cover can be installed outside the equipment to reduce noise so that the noise value meets environmental protection requirements. At the same time, an exhaust fan is used to send the dust-containing gas in the sealed space of the soundproof and dustproof cover to the bag dust collector for treatment, so that the discharged dust-containing gas meets environmental protection requirements.

Claims

1. A high-efficiency dry mill for waste steel slag, characterized by: The invention comprises a roller (1), a material inlet and outlet (2), a motor (3), a bracket (7), a fan (8), a lifting plate (10) and a material drop hole (11); the two ends of the roller (1) are respectively rotatably connected to the bracket (7); the motor (3) is drivingly connected to one end of the roller (1) through a transmission mechanism; the other end of the roller (1) is provided with a fan (8); the roller (1) is polygonal, one edge of the polygonal roller is provided with a material inlet and outlet (2), a cover plate is provided on the material inlet and outlet (2), and a plurality of drop holes (11) are respectively provided on the other edges of the polygonal roller. The material hole (11) is provided with a material lifting plate (10) on each edge of the inner side of the multi-prism roller; the roller (1) is in the shape of a regular hexagonal prism, the material inlet and outlet (2) is in the shape of a rectangular opening, and the material inlet and outlet (2) is arranged on an edge of the roller (1); the material lifting plate (10) is formed by bending a rectangular plate, and is divided into a connecting plate (12) and a bending plate (13), the connecting plate is fixed on the edge of the regular hexagonal prism roller, and the bending plate extends toward the inner side of the roller and has the same direction; the fan (8) blows air into the interior of the roller (1) along the axial direction of the roller (1); Due to the action of the lifting plate (10), the material is lifted up in the drum (1) and then falls from a high point, thereby achieving self-grinding and collision of the material and separation of the metal phase and the non-metal phase of the material; A fan (8) installed at the other end of the drum (1) blows away the fine powder ground from the drum (1); the two ends of the drum have no drop holes (11) in an axial length of 300 mm, forming a relatively closed drum end wind chamber (9); after the wind blown in by the fan (8) reaches the drum end wind chamber (9), part of it returns, thereby achieving further separation of solid materials and powdery materials.

2. A high-efficiency dry grinding machine for scrap steel slag according to claim 1, characterized in that: The cover plate on the inlet and outlet (2) is fixed to the drum (1) by means of bolts.

3. The high-efficiency dry grinding machine for scrap steel slag according to claim 1, characterized in that: The blanking hole (11) on the roller (1) is a tapered hole.

4. The high-efficiency dry grinding machine for scrap steel slag according to claim 1, characterized in that: The motor (3) is fixed on a motor base (6).

5. The high-efficiency dry grinding machine for scrap steel slag according to claim 1, characterized in that: The transmission mechanism of the motor (3) comprises a belt pulley group (4) and a speed regulator (5), and the motor (3) is drivingly connected to the drum (1) via the belt pulley group (4) and the speed regulator (5).

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