Small-granularity raw ore sintering device

Abstract

The utility model relates to the technical field of sintering, in particular to a small-granularity raw ore sintering device. According to the technical scheme, the sintering device comprises a sintering box, a preheating box is fixedly installed on one side of the upper surface of the sintering box, a cooling box is fixedly installed on the side, away from the preheating box, of the lower surface of the sintering box, conveying belts are arranged in the sintering box, the cooling box and the preheating box, and a feeding port is formed in the side, away from the sintering box, of the upper surface of the preheating box; discharging ports are formed in the sides, away from the feeding port, of the lower surfaces of the preheating box, the sintering box and the cooling box, an induced draft fan is fixedly installed in the middle of the upper surface of the cooling box, and the tail end of an input pipe of the induced draft fan is fixedly connected with the upper surface of the cooling box. According to the utility model, after the sintering of the small-particle raw ore is completed, heat is transferred to the small-particle raw ore to be sintered while forced air cooling is carried out on the small-particle raw ore, so that the sintering efficiency of the small-particle raw ore is improved while the energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering, in particular to a small-grained ore sintering device. Background Art

[0002] Sintering refers to the process of transforming powdered ore into a dense body. It is a traditional process and one of the important processes in the current smelting industry. In the smelting industry, sintering can be used to sinter concentrate powders and rich ore powders of different compositions and particle sizes into blocks, and partially eliminate harmful impurities such as sulfur and phosphorus contained in the ore.

[0003] At present, when small-sized raw ore is sintered through a sintering device, the sintered ore needs to be forced to cool, and a large amount of heat will be released during the cooling process. The direct release of this heat will cause a large amount of energy loss. For this reason, we propose a small-sized raw ore sintering device. Utility Model Content

[0004] The utility model aims to provide a sintering device for small-particle ore, which has the advantages of being able to transfer heat to the small-particle ore to be sintered while forcing the small-particle ore to be sintered after the sintering is completed, saving energy consumption and improving the sintering efficiency of the small-particle ore, and solving the problem that when the current small-particle ore is sintered through a sintering device, the ore material after sintering needs to be forced to cool, and a large amount of heat will be released during the cooling process, and the direct release of this part of heat will cause a large amount of energy loss.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a small-size ore sintering device comprises a sintering box, a preheating box is fixedly installed on one side of the upper surface of the sintering box, a cooling box is fixedly installed on the side of the lower surface of the sintering box away from the preheating box, a conveyor belt is arranged inside the sintering box, a feeding port is arranged on the side of the upper surface of the preheating box away from the sintering box, a discharging port is arranged on the side of the lower surface of the preheating box, the sintering box and the cooling box away from the feeding port, an induced draft fan is fixedly installed at the middle position of the upper surface of the cooling box, the end of the induced draft fan input pipe is fixedly connected to the upper surface of the cooling box, and the end of the induced draft fan output pipe is fixedly connected to the side of the upper surface of the preheating box close to the sintering box through a connecting air duct.

[0006] Preferably, a feed hopper is fixedly mounted on the upper surface of the preheating box at a position above the feed inlet.

[0007] Preferably, an exhaust fan is fixedly installed on the upper surface of the preheating box near the inner side of the feed hopper, the end of the exhaust fan input pipe is fixedly connected to a side of the upper surface of the preheating box near the feed hopper, and the end of the exhaust fan output pipe is fixedly connected to an air outlet pipe.

[0008] Preferably, an air inlet is provided on the lower surface of the cooling box, and a filter is fixedly installed inside the air inlet.

[0009] Preferably, a crushing roller is rotatably mounted on a side of the sintering box away from the preheating box, and a plurality of crushing nail columns are evenly and fixedly mounted on the outer surface of the crushing roller.

[0010] Preferably, a crushing motor is fixedly mounted on the rear surface of the sintering box, and the end of the crushing motor output shaft is fixedly connected to the end of the crushing roller.

[0011] Preferably, the top of the inner wall of the cooling box and the sintering box is located below the discharge port and is equipped with a rotating baffle through a rotating shaft, and the lower surfaces of the two rotating baffles are fixedly connected with coil springs. The inner walls of the cooling box and the sintering box are located below the two rotating baffles and are fixedly equipped with limit plates, and the ends of the two coil springs are respectively fixedly connected to the upper surfaces of the two limit plates.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model achieves the effect of being able to transfer heat to the small-particle ore to be sintered while forcibly cooling the small-particle ore after the sintering is completed by arranging a preheating box, a sintering box, a cooling box, a conveyor belt and an induced draft fan, thereby saving energy consumption and improving the sintering efficiency of the small-particle ore. The small-particle ore falls from the feed port onto the conveyor belt inside the preheating box, and is then transferred to the conveyor belt inside the sintering box. After the sintering is completed inside the sintering box, the finished sintered ore material enters the conveyor belt inside the cooling box. The induced draft fan works to allow external cold air to enter the cooling box to take away the heat of the finished sintered ore material, and the heated hot air enters the preheating box to preheat the small-particle ore material to be sintered in the preheating box.

[0014] 2. The utility model achieves the effect of avoiding blockage of the sintered finished ore materials in the sintering box and the cooling box at the discharge port by arranging crushing rollers, crushing nail columns and crushing motors, and is conducive to the cooling of the sintered finished ore materials. When the finished sintered ore materials on the conveyor belt inside the sintering box pass under the crushing rollers, the crushing motor drives the crushing rollers to rotate, and crushes the finished sintered ore materials on the conveyor belt through the crushing nail columns, avoiding blockage at the discharge port of the sintering box and the cooling box. At the same time, the heat transfer area of ​​the crushed finished sintered ore materials is increased, which can be better cooled.

[0015] 3. The utility model reduces the heat dissipation inside the sintering box by arranging a rotating baffle, a coil spring and a limit plate, and is also conducive to the effect that the raw ore inside the preheating box and the sintering box falls from the discharge port to the conveyor belt inside the sintering box and the cooling box. In the process that the small particles of raw ore on the conveyor belt inside the preheating box fall into the conveyor belt inside the sintering box and the finished sintered raw ore on the conveyor belt inside the sintering box falls into the conveyor belt inside the cooling box, the spiral spring is compressed while the rotating baffle rotates, and the limit plate limits the rotating baffle, so that the rotating baffle tilts at a certain angle, and the ore in the discharge port slides along the rotating baffle to the conveyor belt. When there is no raw ore at the discharge port, the compressed coil spring is released and drives the rotating baffle to rotate, thereby blocking the discharge port, thereby preventing the heat inside the sintering box from entering the preheating box or the cooling box from the discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0018] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure of B;

[0019] Figure 4 It is a rear view structural schematic diagram of the sintering box of the utility model.

[0020] Figure numerals: 1. preheating box; 2. conveyor belt; 3. feed port; 4. feed hopper; 5. exhaust fan; 6. air outlet duct; 7. connecting air duct; 8. induced draft fan; 9. cooling box; 10. air inlet; 11. filter screen; 12. sintering box; 13. discharge port; 14. rotating baffle; 15. limit plate; 16. coil spring; 17. rotating shaft; 18. crushing nail column; 19. crushing roller; 20. crushing motor. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Embodiment 1

[0023] like Figures 1 to 4As shown, the utility model proposes a small-size ore sintering device, comprising a sintering box 12, a preheating box 1 is fixedly installed on one side of the upper surface of the sintering box 12, a cooling box 9 is fixedly installed on the side of the lower surface of the sintering box 12 away from the preheating box 1, a conveyor belt 2 is arranged inside the sintering box 12, a feed port 3 is arranged on the side of the upper surface of the preheating box 1 away from the sintering box 12, a feed hopper 4 is fixedly installed on the upper surface of the preheating box 1 at a position above the feed port 3, and small-size ore is added to the preheating box through the feed hopper 4. On the conveyor belt 2 inside the box 1, the preheating box 1, the sintering box 12 and the cooling box 9 are all provided with a discharge port 13 on the side of the lower surface away from the feed port 3. The induced draft fan 8 is fixedly installed at the middle position of the upper surface of the cooling box 9. The end of the induced draft fan 8 input pipe is fixedly connected to the upper surface of the cooling box 9. The lower surface of the cooling box 9 is provided with an air inlet 10. The air inlet 10 is fixedly installed with a filter screen 11. The external cold air entering the cooling box 9 from the air inlet 10 passes through the filter screen 11 to filter out dust and impurities. The end of the induced draft fan 8 output pipe is connected to the preheating box 1. The side of the upper surface close to the sintering box 12 is fixedly connected through the connecting air duct 7. An exhaust fan 5 is fixedly installed at the inner position of the upper surface of the preheating box 1 close to the feed hopper 4. The end of the exhaust fan 5 input pipe is fixedly connected to the side of the upper surface of the preheating box 1 close to the feed hopper 4. The end of the exhaust fan 5 output pipe is fixedly connected to the outlet pipe 6. The exhaust fan 5 discharges the cooled air inside the preheating box 1. A crushing roller 19 is rotatably installed on the side of the sintering box 12 away from the side close to the preheating box 1. A plurality of crushing nails are evenly fixedly installed on the outer surface of the crushing roller 19. Column 18, a crushing motor 20 is fixedly installed on the rear surface of the sintering box 12, and the end of the output shaft of the crushing motor 20 is fixedly connected to the end of the crushing roller 19. When the finished sintered raw ore on the conveyor belt 2 inside the sintering box 12 passes under the crushing roller 19, the crushing motor 20 drives the crushing roller 19 to rotate, and the finished sintered raw ore on the conveyor belt 2 is crushed by the crushing nail column 18 to avoid blockage at the discharge port 13 of the sintering box 12 and the cooling box 9. At the same time, the heat transfer area of ​​the crushed finished sintered ore is increased, which can be better cooled.

[0024] When the utility model is in use, small-particle raw ore falls from the feed port 3 onto the conveyor belt 2 inside the preheating box 1, and is then transmitted to the conveyor belt 2 inside the sintering box 12. After sintering inside the sintering box 12, the finished sintered raw ore material enters the conveyor belt 2 inside the cooling box 9. The induced draft fan 8 operates to allow external cold air to enter the cooling box 9 to take away the heat of the finished sintered raw ore material. The heated hot air enters the preheating box 1 to preheat the small-particle raw ore material to be sintered in the preheating box 1.

[0025] Embodiment 2

[0026] like Figures 1 to 4As shown, a small-particle ore sintering device proposed by the utility model, compared with the first embodiment, this embodiment also includes a rotating baffle 14 rotatably installed at the top of the inner wall of the cooling box 9 and the sintering box 12 below the discharge port 13 through a rotating shaft 17, and the lower surfaces of the two rotating baffles 14 are fixedly connected with a coil spring 16, and the inner walls of the cooling box 9 and the sintering box 12 are fixedly installed with a limit plate 15 at a position below the two rotating baffles 14, and the ends of the two coil springs 16 are fixedly connected to the upper surfaces of the two limit plates 15.

[0027] In this embodiment, in the process that small particles of ore on the conveyor belt 2 inside the preheating box 1 fall onto the conveyor belt 2 inside the sintering box 12 and the finished sintered ore on the conveyor belt 2 inside the sintering box 12 falls onto the conveyor belt 2 inside the cooling box 9, the rotating baffle 14 rotates while the coil spring 16 is compressed, and the limiting plate 15 limits the rotating baffle 14, so that the rotating baffle 14 is tilted at a certain angle, and the ore in the discharge port 13 will slide along the rotating baffle 14 to the conveyor belt 2. When there is no ore at the discharge port 13, the compressed coil spring 16 is released and drives the rotating baffle 14 to rotate, blocking the discharge port 13, preventing the heat inside the sintering box 12 from entering the preheating box 1 or the cooling box 9 from the position of the discharge port 13, thereby reducing heat energy loss.

[0028] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A small-size ore sintering device, comprising a sintering box (12), characterized in that: A preheating box (1) is fixedly mounted on one side of the upper surface of the sintering box (12); a cooling box (9) is fixedly mounted on the side of the lower surface of the sintering box (12) away from the preheating box (1); a conveyor belt (2) is arranged inside the sintering box (12), the cooling box (9) and the preheating box (1); a feed port (3) is arranged on the side of the upper surface of the preheating box (1) away from the sintering box (12); a discharge port (13) is arranged on the side of the lower surfaces of the preheating box (1), the sintering box (12) and the cooling box (9) away from the feed port (3); an induced draft fan (8) is fixedly mounted at the middle position of the upper surface of the cooling box (9); the end of the inlet pipe of the induced draft fan (8) is fixedly connected to the upper surface of the cooling box (9); and the end of the outlet pipe of the induced draft fan (8) is fixedly connected to the side of the upper surface of the preheating box (1) close to the sintering box (12) through a connecting air duct (7).

2. A small-size ore sintering device according to claim 1, characterized in that: A feed hopper (4) is fixedly mounted on the upper surface of the preheating box (1) at a position above the feed inlet (3).

3. A small-size ore sintering device according to claim 2, characterized in that: An exhaust fan (5) is fixedly installed on the upper surface of the preheating box (1) at a position close to the inner side of the feed hopper (4); the end of the exhaust fan (5) input pipe is fixedly connected to a side of the upper surface of the preheating box (1) close to the feed hopper (4); and the end of the exhaust fan (5) output pipe is fixedly connected to an air outlet pipe (6).

4. The small-size ore sintering device according to claim 1 is characterized in that: The lower surface of the cooling box (9) is provided with an air inlet (10), and a filter screen (11) is fixedly installed inside the air inlet (10).

5. The small-size ore sintering device according to claim 1 is characterized in that: A crushing roller (19) is rotatably mounted on the side of the sintering box (12) away from the preheating box (1), and a plurality of crushing nail columns (18) are evenly and fixedly mounted on the outer surface of the crushing roller (19).

6. A small-size ore sintering device according to claim 5, characterized in that: A crushing motor (20) is fixedly mounted on the rear surface of the sintering box (12), and the end of the output shaft of the crushing motor (20) is fixedly connected to the end of the crushing roller (19).

7. The small-size ore sintering device according to claim 1 is characterized in that: A rotating baffle (14) is rotatably mounted on the top of the inner wall of the cooling box (9) and the sintering box (12) at a position below the discharge port (13) via a rotating shaft (17), and a coil spring (16) is fixedly connected to the lower surface of the two rotating baffles (14). A limiting plate (15) is fixedly mounted on the inner wall of the cooling box (9) and the sintering box (12) at a position below the two rotating baffles (14), and the ends of the two coil springs (16) are respectively fixedly connected to the upper surfaces of the two limiting plates (15).

Images