Energy-saving powdered iron dryer

Abstract

The utility model discloses an energy-saving type powdered iron dryer, and belongs to the technical field of powdered iron processing equipment. Comprising a drying cylinder; the dispersing cone plate is conical and is fixedly connected with the drying cylinder through a connecting rod; a hot air pipe communicating with the conveying pipe is arranged on the inner wall of the drying cylinder and corresponds to the inclined face of the dispersing conical plate. A stirring assembly located below the dispersing conical plate is arranged at the bottom of the drying cylinder. The feeding box is fixedly arranged on the drying cylinder, the exhaust pipe is connected to the upper end of the drying cylinder, and the exhaust pipe communicates with the feeding box; a spiral feeding mechanism is arranged in the feeding box, and a storage hopper communicating with the feeding box is arranged above the feeding box. According to the device, added fine iron powder can be quickly dispersed by utilizing the dispersion cone plate and the hot air pipe, and meanwhile, the exhaust pipe communicated with the feeding box is arranged, so that energy waste caused by exhaust of waste gas can be greatly reduced.

Description

Technical Field

[0001] This utility model provides an energy-saving iron concentrate dryer, belonging to the technical field of iron concentrate processing equipment. Background Technology

[0002] Iron ore concentrate is an important raw material for steel production. During its production and processing, it typically requires drying to reduce its moisture content. Iron ore concentrate dryers usually consist of a drying drum, a hot air furnace, and a feeding mechanism. The feeding mechanism feeds the iron ore concentrate into the drying drum, and then hot air is introduced into the drum through the hot air furnace to achieve the drying effect. Traditional iron ore concentrate dryers suffer from high energy consumption.

[0003] On the one hand, traditional iron ore concentrate dryers tend to waste a lot of energy, mainly because a large amount of heat energy is directly emitted into the environment with the exhaust gas during the drying process, resulting in energy waste; and this energy is inconvenient to recover and reuse. On the other hand, when feeding iron ore concentrate, structures such as feed pipes are often used, and the iron ore concentrate often enters the dryer in a stagnant state, making it difficult to immediately disperse and increase the contact area with hot air; even if the hot air blown by the hot air blower has a certain dispersing effect, a large air force is often required for iron powder particles with larger particle size and mass, which increases energy consumption and the effect is not very good. Utility Model Content

[0004] The technical problem this invention aims to solve is that during the drying of iron concentrate, the emission of exhaust gas easily leads to energy waste, and at the same time, the iron concentrate is not easy to disperse immediately when it enters the drying drum, which affects the drying effect.

[0005] To solve the above problems, the proposed technical solution is as follows: an energy-saving iron concentrate dryer, including support legs, with a drying cylinder fixedly connected to the support legs upwards; a hot air furnace is fixedly installed on one side of the drying cylinder, and a conveying pipe communicating with the drying cylinder is connected to the hot air furnace; further comprising:

[0006] A dispersing cone plate, which is conical in shape, is fixedly connected to a drying cylinder via a connecting rod; a hot air pipe connected to a conveying pipe is provided on the inner wall of the drying cylinder, and the hot air pipe corresponds to the inclined surface of the dispersing cone plate; a stirring assembly is provided at the bottom of the drying cylinder below the dispersing cone plate;

[0007] The exhaust pipe and the feeding box are provided; the feeding box is fixedly installed on the drying cylinder, the exhaust pipe is connected to the upper end of the drying cylinder and is connected to the feeding box; the feeding box is equipped with a spiral feeding mechanism and a storage hopper connected to the feeding box is provided above the feeding box.

[0008] As an improvement, the bottom of the feeding box is provided with a feed inlet that communicates with the drying cylinder, and the feed inlet corresponds to the apex of the dispersing cone plate.

[0009] As an improvement, several hot air pipes are provided, and these hot air pipes are evenly distributed on the inner wall of the drying cylinder; there is a gap between the dispersing cone plate and the inner wall of the drying cylinder.

[0010] As an improvement, the stirring assembly includes a stirring motor and a stirring shaft. The stirring motor is located at the bottom of the drying cylinder, and the stirring shaft is rotatably located inside the drying cylinder and is fixedly connected to the output shaft of the stirring motor. Stirring blades are fixedly connected to the stirring shaft.

[0011] As an improvement, the spiral feeding mechanism includes a spiral feeding rod and a drive motor; the spiral feeding rod is rotatably disposed inside the feeding box, the drive motor is disposed on the outer wall of the feeding box, and the output end of the drive motor is fixedly connected to the spiral feeding rod.

[0012] As an improvement, an air vent is provided on the top of the feeding box.

[0013] The beneficial effects of this utility model are:

[0014] 1. The conical dispersing cone plate is fixedly connected to the drying cylinder via a connecting rod. By setting the conical dispersing cone plate, the inclined surface of the dispersing cone plate can quickly disperse the iron concentrate powder added to the drying cylinder and prolong the falling time of the iron concentrate powder. At the same time, the hot air pipe corresponds to the inclined surface of the dispersing cone plate, which can quickly dry the dispersed iron concentrate powder. The air force of the hot air pipe can also generate a certain resistance to the falling of the iron concentrate powder, further delaying the falling time of the iron concentrate powder and improving the drying effect.

[0015] 2. The feeding box is equipped with a spiral feeding mechanism, which can increase the uniformity of feeding; the exhaust pipe is connected to the feeding box, and the high-temperature exhaust gas can enter the feeding box through the exhaust pipe to preheat the iron concentrate in the feeding box, which can greatly reduce the waste of heat energy and achieve energy saving effect. Attached Figure Description

[0016] Figure 1 This is a perspective view of an energy-saving iron concentrate dryer according to the present invention.

[0017] Figure 2 This is a perspective view of an energy-saving iron concentrate dryer according to this utility model.

[0018] Figure 3 This is a cross-sectional view of the drying cylinder of an energy-saving iron concentrate dryer according to this utility model.

[0019] Figure 4 This is a cross-sectional view of the feeding box of an energy-saving iron concentrate dryer according to this utility model.

[0020] 1. Support leg; 2. Drying cylinder; 3. Hot air furnace; 4. Conveying pipe; 5. Feeding box; 6. Storage hopper; 7. Exhaust pipe; 8. Connecting rod; 9. Hot air pipe; 10. Dispersing cone plate; 11. Stirring shaft; 12. Stirring motor; 13. Air outlet; 14. Spiral feed rod; 15. Drive motor; 16. Feed inlet. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] according to Figure 1-4 As shown: This utility model provides an energy-saving iron concentrate dryer: including support legs 1, with a drying cylinder 2 fixedly connected to the support legs 1; a hot air furnace 3 is fixedly installed on one side of the drying cylinder 2, and a conveying pipe 4 connected to the hot air furnace 3 and communicating with the drying cylinder 2; it also includes:

[0023] A dispersing cone plate 10 is cone-shaped and is fixedly connected to the drying cylinder 2 via a connecting rod 8. A gap exists between the dispersing cone plate 10 and the inner wall of the drying cylinder 2 to ensure that the iron concentrate falls normally from the dispersing cone plate 10 to the bottom of the drying cylinder 2. A hot air pipe 9 connected to the conveying pipe 4 is installed on the inner wall of the drying cylinder 2, and the hot air pipe 9 corresponds to the inclined surface of the dispersing cone plate 10. Several hot air pipes 9 are provided, and they are evenly distributed on the inner wall of the drying cylinder 2 to improve the uniformity of drying. A stirring assembly is installed at the bottom of the drying cylinder 2 below the dispersing cone plate 10.

[0024] The exhaust pipe 7 and the feeding box 5 are fixedly installed on the drying cylinder 2. An air vent 13 is provided on the top of the feeding box 5 to facilitate ventilation. The exhaust pipe 7 is connected to the upper end of the drying cylinder 2 and is connected to the feeding box 5. A spiral feeding mechanism is provided inside the feeding box 5, and a storage hopper 6 connected to the feeding box 5 is provided on the top of the feeding box 5.

[0025] like Figure 3 , 4 As shown, the bottom of the feeding box 5 is provided with a feed inlet 16 that communicates with the drying cylinder 2, and the feed inlet 16 corresponds to the apex of the dispersing cone plate 10. When the iron concentrate enters the drying cylinder 2 from the feed inlet 16, it can contact the apex of the dispersing cone plate 10 and thus be quickly dispersed by the dispersing cone plate 10.

[0026] like Figure 4 As shown, the screw feeding mechanism includes a screw feed rod 14 and a drive motor 15. The screw feed rod 14 is rotatably disposed inside the feeding box 5, and the drive motor 15 is disposed on the outer wall of the feeding box 5, with the output end of the drive motor 15 fixedly connected to the screw feed rod 14. By setting up the screw feeding mechanism, the uniformity of feeding can be increased, and the drying effect can be improved.

[0027] like Figure 3 As shown, the stirring assembly includes a stirring motor 12 and a stirring shaft 11. The stirring motor 12 is located at the bottom of the drying cylinder 2, and the stirring shaft 11 is rotatably located inside the drying cylinder 2 and is fixedly connected to the output shaft of the stirring motor 12. Stirring blades are fixedly connected to the stirring shaft 11, which can stir the iron concentrate at the bottom of the drying cylinder 2 and make it heat evenly.

[0028] The principle of this utility model

[0029] like Figure 1 , 4 As shown, when using this application, the iron concentrate in the storage hopper 6 can enter the feeding box 5; the drive motor 15 is started, and under the action of the spiral feed rod 14, the iron concentrate can fall into the drying cylinder 2 at a uniform speed through the feed port 16; the iron concentrate entering the drying cylinder 2 is in a relatively concentrated state. When the iron concentrate falls onto the dispersing cone plate 10, it can quickly disperse on the inclined surface of the dispersing cone plate 10, and the hot air furnace 3 continuously introduces hot air into the dispersing cone plate 10 through the hot air pipe 9 to accelerate drying; at the same time, under the influence of the inclined surface of the dispersing cone plate 10 and the air force of the hot air pipe 9, the iron concentrate can stay on the dispersing cone plate 10 for a longer time, improving the drying effect. Finally, the iron concentrate on the dispersing cone plate 10 can fall into the bottom of the drying cylinder 2 through the gap between the dispersing cone plate 10 and the inner wall of the drying cylinder 2; the stirring motor 12 can be started to stir using the stirring shaft 11 and stirring blades.

[0030] During the drying process, the exhaust gas carrying a large amount of heat can enter the feeding box 5 through the exhaust pipe 7 and exchange heat with the iron concentrate that is normally conveyed by the screw in the feeding box 5. This preheats the iron concentrate that is about to be fed, thereby achieving a good effect of recovering and utilizing heat energy, reducing energy waste, and achieving energy saving.

[0031] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An energy-saving iron concentrate dryer, comprising a support leg (1), wherein a drying cylinder (2) is fixedly connected upward to the support leg (1); a hot air furnace (3) is fixedly installed on one side of the drying cylinder (2), and a conveying pipe (4) communicating with the drying cylinder (2) is connected to the hot air furnace (3); characterized in that, Also includes: A dispersing cone plate (10) is cone-shaped and is fixedly connected to the drying cylinder (2) by a connecting rod (8); a hot air pipe (9) communicating with a conveying pipe (4) is provided on the inner wall of the drying cylinder (2), and the hot air pipe (9) corresponds to the inclined surface of the dispersing cone plate (10); a stirring assembly located below the dispersing cone plate (10) is provided at the bottom of the drying cylinder (2); Exhaust pipe (7) and feeding box (5); the feeding box (5) is fixedly installed on the drying cylinder (2), the exhaust pipe (7) is connected to the upper end of the drying cylinder (2), and the exhaust pipe (7) is connected to the feeding box (5); a spiral feeding mechanism is provided inside the feeding box (5), and a storage hopper (6) connected to the feeding box (5) is provided above the feeding box (5).

2. The energy-saving iron concentrate dryer according to claim 1, characterized in that: The bottom of the feeding box (5) is provided with a feed inlet (16) that communicates with the drying cylinder (2), and the feed inlet (16) corresponds to the apex of the dispersing cone plate (10).

3. The energy-saving iron concentrate dryer according to claim 2, characterized in that: Several hot air pipes (9) are provided, and the hot air pipes (9) are evenly distributed on the inner wall of the drying cylinder (2); there is a gap between the dispersing cone plate (10) and the inner wall of the drying cylinder (2).

4. The energy-saving iron concentrate dryer according to claim 1, characterized in that: The stirring assembly includes a stirring motor (12) and a stirring shaft (11). The stirring motor (12) is located at the bottom of the drying cylinder (2), and the stirring shaft (11) is rotatably located inside the drying cylinder (2). The stirring shaft (11) is fixedly connected to the output shaft of the stirring motor (12). Stirring blades are fixedly connected to the stirring shaft (11).

5. The energy-saving iron concentrate dryer according to claim 1, characterized in that: The spiral feeding mechanism includes a spiral feeding rod (14) and a drive motor (15); the spiral feeding rod (14) is rotatably disposed inside the feeding box (5), the drive motor (15) is disposed on the outer wall of the feeding box (5), and the output end of the drive motor (15) is fixedly connected to the spiral feeding rod (14).

6. The energy-saving iron concentrate dryer according to claim 1, characterized in that: An air vent (13) is provided above the feeding box (5).

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