Ball press machine for producing high-chromium ore pressed balls

Abstract

The utility model discloses a ball press machine for producing high-chromium ore pressed balls, which relates to the field of high-chromium ore pressed balls and comprises a ball press box, a first rotary drum and a second rotary drum are rotatably connected in the ball press box and are arranged in parallel, and opposite sides of the first rotary drum and the second rotary drum are attached to each other. A plurality of semispherical grooves are formed in the outer sides of the first rotary drum and the second rotary drum, an air cavity is formed between the outer side and the inner side of the ball pressing box, and two air blowing plates are distributed in a V shape and can shield the top end of the first rotary drum or the second rotary drum, so that powder is prevented from scattering all around from the upper portion of the first rotary drum or the second rotary drum; meanwhile, an air pump is started, the raw materials in the semispherical grooves in the first rotary drum and the second rotary drum can be blown out through air ports, the raw materials are concentrated between the first rotary drum and the second rotary drum to be subjected to the ball pressing procedure, the cleaning effect is achieved, the raw materials are prevented from being taken away to the other side, and the utilization rate of the raw materials is increased.

Description

Technical Field

[0001] The utility model relates to the field of high-chromium ore briquetting, and particularly relates to a briquetting machine for producing high-chromium ore briquettes. Background Art

[0002] The chromium raw ore currently used in the submerged arc furnace has a large amount of fine powder. When added into the furnace, the air permeability of the furnace charge is poor, and blowout accidents are likely to occur. During tapping, a large amount of furnace charge is lost, resulting in increased costs. By adding various binders to chromium fine powder, stirring, pressing into balls by a briquetting machine, then sintering and pre-reducing, and adding them into the submerged arc furnace, the output can be increased, the power consumption can be reduced, and the cost can be reduced.

[0003] However, when the chromium fine powder is pressed into balls by the briquetting machine, there are gaps in the internal extrusion mechanism of the briquetting machine. A part of the chromium powder is extruded into balls and discharged together with the finished balls, which is likely to cause waste of resources.

[0004] Therefore, it is necessary to propose a briquetting machine for producing high-chromium ore briquettes to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a briquetting machine for producing high-chromium ore briquettes to solve the problem that when the chromium fine powder is pressed into balls by the briquetting machine, there are gaps in the internal extrusion mechanism of the briquetting machine. A part of the chromium powder is extruded into balls and discharged together with the finished balls, which is likely to cause waste of resources.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A briquetting machine for producing high-chromium ore briquettes, including a briquetting box. Inside the briquetting box, a first rotating cylinder and a second rotating cylinder are rotatably connected. The first rotating cylinder and the second rotating cylinder are arranged in parallel, and the opposite sides of the first rotating cylinder and the second rotating cylinder are in contact. A plurality of hemispherical grooves are opened on the outer sides of the first rotating cylinder and the second rotating cylinder. An air cavity is opened between the outer side and the inner side of the briquetting box. One side of the top of the briquetting box is fixed with an air pump, and the air pump is connected to the air cavity. On both sides of the top inside the briquetting box, blowing plates are fixed. The two blowing plates are arranged in a V shape, and air outlets are opened at the bottom ends of the two blowing plates. The air outlets are communicated with the air cavity, and the air outlets are directly opposite to the upper surfaces of the corresponding first rotating cylinder or second rotating cylinder.

[0007] Preferably, an output port is fixed at the bottom end of the briquetting box, and a through groove is opened at the bottom end of the briquetting box. The through groove is communicated with the output port.

[0008] Preferably, a right-angled trapezoidal block is fixed inside the output port, and an air exhaust port is arranged on one side of the output port close to the first rotating cylinder. The air exhaust port is communicated with the air cavity.

[0009] Preferably, the inclined surface of the right trapezoidal block faces the lower part of the through groove, the right angle of the right trapezoidal block is arranged on the side away from the air outlet, and there is a distance between both sides of the right trapezoidal block and both sides inside the output port.

[0010] Preferably, a feed inlet is arranged at the top end of the briquetting box, the bottom end of the feed inlet communicates with the inside of the briquetting box, a cavity is formed inside the blowing plate, and the cavity communicates with the air port and the air chamber.

[0011] Preferably, two driving motors are fixed on one side of the briquetting box, and the two driving motors are respectively connected to the first rotating cylinder and the second rotating cylinder.

[0012] The technical effects and advantages of the present utility model:

[0013] 1. In the actual operation of the present utility model, the two blowing plates are distributed in a V shape, which can block the top ends of the first rotating cylinder or the second rotating cylinder, preventing the powder from scattering above the first rotating cylinder or the second rotating cylinder, resulting in some powder being unable to undergo the briquetting process. At the same time, when the air pump is started, the raw materials in the hemispherical grooves on the first rotating cylinder and the second rotating cylinder can be blown out through the air port, enabling the raw materials to be concentrated between the first rotating cylinder and the second rotating cylinder for the briquetting process, playing a cleaning role, preventing the raw materials from being carried to the other side, and improving the utilization rate of the raw materials.

[0014] 2. Further, the gas generated by the air pump can be discharged horizontally from the air outlet. After the briquetting process, there will be some powdered materials that do not form spheres. When the powdered materials and the raw material balls are discharged from the bottom end of the through groove, the wind generated by the air outlet can blow the lighter powdered materials to one side of the right trapezoidal block. Since the raw material balls are larger in volume and heavier in mass, they can slide down to the other side of the right trapezoidal block through the inclined surface of the right trapezoidal block, automatically completing the separation work. The falling powdered materials can be collected and recycled, reducing the waste of resources. Description of the Drawings

[0015] Figure 1 It is a schematic internal structure diagram of the briquetting box of the present utility model.

[0016] Figure 2 It is a schematic structural diagram of the driving motor of the present utility model.

[0017] In the figure: 1. Briquetting box; 2. Feed inlet; 3. Air pump; 4. Air chamber; 5. Blowing plate; 6. First rotating cylinder; 7. Hemispherical groove; 8. Second rotating cylinder; 9. Output port; 10. Right trapezoidal block; 11. Air outlet; 12. Through groove; 13. Driving motor. Detailed Embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] The present invention provides a briquetting machine for producing high-chromium ore briquettes as shown in Figure 1 - Figure 2 , which includes a briquetting box 1. Inside the briquetting box 1, a first rotating cylinder 6 and a second rotating cylinder 8 are rotatably connected. On one side of the briquetting box 1, two driving motors 13 are fixed. The two driving motors 13 are respectively connected to the first rotating cylinder 6 and the second rotating cylinder 8. The two driving motors 13 can drive the first rotating cylinder 6 and the second rotating cylinder 8 to rotate relatively, and the sides of the first rotating cylinder 6 and the second rotating cylinder 8 that are close to each other are in contact.

[0020] At the top of the briquetting box 1, a feed inlet 2 is provided. The bottom end of the feed inlet 2 is communicated with the inside of the briquetting box 1. The first rotating cylinder 6 and the second rotating cylinder 8 are arranged in parallel, and the opposite sides of the first rotating cylinder 6 and the second rotating cylinder 8 are in contact. A plurality of hemispherical grooves 7 are formed on the outer sides of the first rotating cylinder 6 and the second rotating cylinder 8.

[0021] In the actual operation of the present invention, chromium powder ore is added with various binders, stirred, and then input into the inside of the briquetting box 1 through the feed inlet 2. The first rotating cylinder 6 and the second rotating cylinder 8 rotate relatively, so that the raw materials enter into the hemispherical grooves 7. Through the pressurized contact of the first rotating cylinder 6 and the second rotating cylinder 8, raw material balls are formed. A through groove 12 is formed at the bottom end of the briquetting box 1. The through groove 12 is communicated with an outlet 9. An outlet 9 is fixed at the bottom end of the briquetting box 1. The raw material balls can be discharged from the outlet 9.

[0022] An air cavity 4 is formed between the outer side and the inner side of the briquetting box 1. An air pump 3 is fixed on one side of the top of the briquetting box 1. The air pump 3 is connected to the air cavity 4. On both sides of the top end inside the briquetting box 1, blowing plates 5 are fixed. The two blowing plates 5 are arranged in a V shape, and air outlets are formed at the bottom ends of the two blowing plates 5. The air outlets are communicated with the air cavity 4. The air outlets are directly opposite to the upper surfaces of the corresponding first rotating cylinder 6 or the second rotating cylinder 8. A cavity is formed inside the blowing plate 5. The cavity is communicated with the air outlet and the air cavity 4.

[0023] In the actual operation of the utility model, the two blowing plates 5 are distributed in a V shape, which can block the top of the first rotating cylinder 6 or the second rotating cylinder 8, avoiding the scattering of the powder from above the first rotating cylinder 6 or the second rotating cylinder 8, resulting in part of the powder being unable to undergo the briquetting process. At the same time, when the air pump 3 is started, the raw materials in the hemispherical grooves 7 on the first rotating cylinder 6 and the second rotating cylinder 8 can be blown out through the air ports, so that the raw materials are concentrated between the first rotating cylinder 6 and the second rotating cylinder 8 for the briquetting process, playing a cleaning role and preventing the raw materials from being carried to the other side.

[0024] A right trapezoidal block 10 is fixed inside the output port 9. An air outlet 11 is arranged on one side of the output port 9 close to the first rotating cylinder 6, and the air outlet 11 is communicated with the air cavity 4.

[0025] The inclined surface of the right trapezoidal block 10 faces the lower part of the through groove 12. The right angle of the right trapezoidal block 10 is arranged on the side far from the air outlet 11, and there is a gap between both sides of the right trapezoidal block 10 and both sides inside the output port 9.

[0026] Furthermore, the gas generated by the air pump 3 can be discharged horizontally from the air outlet 11. After the briquetting process, there will be some powder generating spheres. When the powder and the raw material balls are discharged from the bottom end of the through groove 12 together, the wind force generated by the air outlet 11 can blow the lighter powder to one side of the right trapezoidal block 10. Due to the larger volume and heavier mass of the raw material balls, they can slide down to the other side of the right trapezoidal block 10 through the inclined surface of the right trapezoidal block 10, automatically completing the separation work. The falling powder can be collected and recycled, reducing the waste of resources.

Claims

1. A briquetting machine for producing high-chromium ore briquettes, including a briquetting box (1), characterized in that: Inside the briquetting box (1), a first rotating cylinder (6) and a second rotating cylinder (8) are rotatably connected. The first rotating cylinder (6) and the second rotating cylinder (8) are arranged in parallel, and the opposite sides of the first rotating cylinder (6) and the second rotating cylinder (8) are in contact. A plurality of hemispherical grooves (7) are provided on the outer sides of the first rotating cylinder (6) and the second rotating cylinder (8). An air cavity (4) is provided between the outer side and the inner side of the briquetting box (1). On one side of the top end of the briquetting box (1), an air pump (3) is fixed. The air pump (3) is connected to the air cavity (4). On both sides of the inner top end of the briquetting box (1), blowing plates (5) are fixed. The two blowing plates (5) are arranged in a V shape, and air outlets are provided at the bottom ends of the two blowing plates (5). The air outlets are communicated with the air cavity (4), and the air outlets are directly opposite to the upper surfaces of the corresponding first rotating cylinder (6) or second rotating cylinder (8).

2. The briquetting machine for producing high-chromium ore briquettes according to claim 1, wherein: At the bottom end of the briquetting box (1), an output port (9) is fixed. A through groove (12) is provided at the bottom end of the briquetting box (1). The through groove (12) is communicated with the output port (9).

3. The briquetting machine for producing high-chromium ore briquettes according to claim 2, characterized in that: Inside the output port (9), a right-angled trapezoidal block (10) is fixed. On one side of the output port (9) close to the first rotating cylinder (6), an air exhaust port (11) is provided. The air exhaust port (11) is communicated with the air cavity (4).

4. The briquetting machine for producing high-chromium ore briquettes according to claim 3, characterized in that: The inclined surface of the right-angled trapezoidal block (10) is directly opposite to the lower part of the through groove (12). The right angle of the right-angled trapezoidal block (10) is arranged on the side away from the air exhaust port (11). A gap is left between both sides of the right-angled trapezoidal block (10) and both sides inside the output port (9).

5. The briquetting machine for producing high-chromium ore briquettes according to claim 1, characterized in that: On the top end of the briquetting box (1), a feed inlet (2) is provided. The bottom end of the feed inlet (2) is communicated with the inside of the briquetting box (1). A cavity is provided inside the blowing plate (5). The cavity is communicated with the air outlet and the air cavity (4).

6. The briquetting machine for producing high-chromium ore briquettes according to claim 1, characterized in that: On one side of the briquetting box (1), two driving motors (13) are fixed. The two driving motors (13) are respectively connected to the first rotating cylinder (6) and the second rotating cylinder (8).

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