Chemical fertilizer production drying machine capable of recycling waste heat

Abstract

The utility model discloses a chemical fertilizer production dryer capable of recovering waste heat, which relates to the field of dryers and comprises a dryer body and a drying mechanism, a roller is arranged in the dryer body, two ends of the roller are rotatably connected with the dryer body through bearings, one end of the dryer body is provided with a feed port, and the other end of the dryer body is provided with a discharge port. The waste heat recycling device has the advantages that the other end of each backflow pipe is connected with one side of the corresponding discharging port, part of waste heat air can be recycled through the backflow pipes, resource waste caused by direct discharging of the air is avoided, the air purifier is arranged between the backflow pipes, and therefore the waste heat of the air can be recycled. The filter layer is arranged on the feeding opening, so that the fertilizer is not prone to being sucked into the backflow pipe, the scraping plate is arranged on the inner wall of the roller, under continuous rotation, the scraping plate scatters the fertilizer, the fertilizer is not prone to being hung on the wall, and the drying effect is more remarkable.

Description

Technical Field

[0001] The utility model relates to the field of drying machines, in particular to a fertilizer production drying machine with waste heat recovery. Background Art

[0002] When producing fertilizers, there is still about 30% moisture after molding. Excessive moisture will affect the strength of the fertilizer and it is easy to crush during packaging and transportation. On the other hand, excessive moisture will easily cause mold and deterioration during storage. Therefore, the fertilizer must be dried in time during the process to evaporate excess moisture. The fertilizer dryer is a key equipment in the fertilizer production line. It can dry granular organic fertilizer or compound fertilizer very well. The dryer has a high degree of automation, is easy to operate, and can work continuously at high load. However, the existing dryers used in fertilizer production cannot recover waste heat for secondary utilization when in use, resulting in a waste of resources. Utility Model Content

[0003] The utility model provides a fertilizer production dryer with waste heat recovery, which solves the existing problems.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fertilizer production dryer with waste heat recovery, including a dryer body and a drying mechanism, a drum is provided inside the dryer body, and both ends of the drum are rotatably connected to the dryer body through bearings, a feed port is provided at one end of the dryer body, and a discharge port is provided at the other end of the dryer body, a rotating mechanism is provided between the drum and the dryer, one side of the feed port is connected to the drying mechanism, and the drying mechanism is a drying structure with a circulating air duct structure.

[0005] Preferably, the drying mechanism includes a hot air duct, a hot air blower, a return pipe, pillars and a support plate, one end of the hot air duct is connected to one side of the feed port, the other end of the hot air duct is connected to the hot air blower, one side of the hot air blower is connected to one end of the return pipe, the other end of the return pipe is connected to one side of the feed port, the hot air blower is installed on the support plate, pillars are provided at the four corners of the bottom of the support plate, and an air purifier is provided between the return pipes.

[0006] Preferably, the rotating mechanism comprises a motor, a driving gear and a driven gear, the motor is mounted at the bottom of the dryer body, a driving gear is arranged on the output shaft of the motor, a driven gear is arranged on the outer wall of the drum, and the driving gear and the driven gear are meshed with each other.

[0007] Preferably, multiple layers of scrapers are provided on the inner wall of the drum.

[0008] Preferably, a filter layer is provided on the feed inlet.

[0009] Preferably, a material discharge box is provided below the material discharge port.

[0010] The beneficial effects of the utility model are as follows: the other end of the return pipe is connected to one side of the discharge port, the return pipe can recycle part of the waste heat of the air, avoiding the waste of resources caused by direct discharge of air, an air purifier is arranged between the return pipes, which can purify the odor of fertilizer mixed in the recycled air, a filter layer is arranged on the feed port, so that the fertilizer is not easily sucked into the return pipe, when the motor is working, it drives the active gear on the output shaft to rotate, thereby driving the driven gear to rotate, so that the drum rotates, and under high-speed rotation, the fertilizer can be dispersed under the action of gravity, which is beneficial to drying, and at the same time, it can also promote the fertilizer to move forward, a scraper is arranged on the inner wall of the drum, and under continuous rotation, the scraper breaks up the fertilizer, so that the fertilizer is not easy to hang on the wall, and the drying effect is more significant. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 It is a cross-sectional structural schematic diagram of the utility model.

[0013] Figure 3 It is a schematic cross-sectional view of the utility model from another angle.

[0014] Numbers in the figure: 1. Dryer body; 2. Feed inlet; 3. Discharge inlet; 4. Drum; 5. Motor; 6. Driving gear; 7. Driven gear; 8. Hot air duct; 9. Hot air blower; 10. Drying mechanism; 11. Pillar; 12. Support plate; 13. Filter layer; 14. Discharge box; 15. Reflux pipe; 16. Rotating mechanism; 17. Scraper; 18. Air purifier. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0016] Reference Figure 1-Figure 3 As shown, a fertilizer production dryer with waste heat recovery includes a dryer body 1 and a drying mechanism 10. A drum 4 is provided inside the dryer body 1. Both ends of the drum 4 are rotatably connected to the dryer body 1 through bearings. A feed port 2 is provided at one end of the dryer body 1, and a discharge port 3 is provided at the other end of the dryer body 1. A rotating mechanism 16 is provided between the drum 4 and the dryer. One side of the feed port 2 is connected to the drying mechanism 10, and the drying mechanism 10 is a drying structure with a circulating air duct structure, which can recycle the hot air from the drying.

[0017] The drying mechanism 10 includes a hot air pipe 8, a hot air blower 9, a return pipe 15, a pillar 11 and a support plate 12. One end of the hot air pipe 8 is connected to one side of the feed port 2, and the other end of the hot air pipe 8 is connected to the hot air blower 9, so that the hot air blower 9 can dry the fertilizer more effectively and directly. One side of the hot air blower 9 is connected to one end of the return pipe 15, and the other end of the return pipe 15 is connected to the side of the feed port 3. The return pipe 15 can recycle part of the waste heat of the air to avoid the waste of resources caused by direct discharge of air. The hot air blower 9 is installed on the support plate 12. Pillars 11 are provided at the four corners of the bottom of the support plate 12 to stabilize it. An air purifier 18 is provided between the return pipes 15 to purify the odor of the fertilizer mixed in the recycled air.

[0018] The rotating mechanism 16 includes a motor 5, a driving gear 6 and a driven gear 7. The motor 5 is installed at the bottom of the dryer body 1. The output shaft of the motor 5 is provided with a driving gear 6, and the outer wall of the drum 4 is provided with a driven gear 7. The driving gear 6 and the driven gear 7 are meshed with each other, so that when the motor 5 is working, the driving gear 6 on the output shaft is driven to rotate, thereby driving the driven gear 7 to rotate, so that the drum 4 rotates. Under high-speed rotation, the fertilizer can be dispersed under the action of gravity, which is conducive to drying and can also promote the fertilizer to move forward. A multi-layer scraper 17 is provided on the inner wall of the drum 4. Under continuous rotation, the scraper 17 breaks up the fertilizer, making it difficult for the fertilizer to hang on the wall, and the drying effect is more significant. A filtering layer 13 is provided on the feed port 2, so that the fertilizer is not easily sucked into the reflux pipe 15. A discharge box 14 is provided below the discharge port 3 for collecting the dried fertilizer.

[0019] Working principle: When the present practical device is in use, firstly, the fertilizer containing water is poured in from the feed port 2, the hot air blower 9 works, and the dried air is sent into the drum 4 through the hot air pipe 8 to dry the fertilizer, and the motor 5 works, driving the active gear 6 on the output shaft to rotate, thereby driving the driven gear 7 to rotate, so that the drum 4 rotates, and the fertilizer can be dispersed under high-speed rotation, which is beneficial to drying, and at the same time, it can also promote the fertilizer to move forward, and the scraper 17 breaks up the fertilizer, making it difficult for the fertilizer to hang on the wall, and the drying effect is more significant, and the air in the air and part of the waste heat air are recycled through the return pipe 15, so as to avoid the waste of resources caused by the direct discharge of the air containing waste heat, and the air purifier 18 is arranged between the return pipes 15, which can purify the odor of the fertilizer mixed in the recycled air, and the dried fertilizer falls out through the discharge port 3 and falls into the discharge box 14.

[0020] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fertilizer production dryer with waste heat recovery, comprising a dryer body (1) and a drying mechanism (10), It is characterized in that A drum (4) is provided inside the dryer body (1), and both ends of the drum (4) are rotatably connected to the dryer body (1) via bearings. A feed port (2) is provided at one end of the dryer body (1), and a discharge port (3) is provided at the other end of the dryer body (1). A rotating mechanism (16) is provided between the drum (4) and the dryer, and one side of the feed port (2) is connected to a drying mechanism (10), and the drying mechanism (10) is a drying structure with a circulating air duct structure.

2. A fertilizer production dryer with waste heat recovery according to claim 1, It is characterized in that The drying mechanism (10) comprises a hot air pipe (8), a hot air blower (9), a return pipe (15), a support (11) and a support plate (12); one end of the hot air pipe (8) is connected to one side of the feed port (2); the other end of the hot air pipe (8) is connected to the hot air blower (9); one side of the hot air blower (9) is connected to one end of the return pipe (15); the other end of the return pipe (15) is connected to one side of the feed port (3); the hot air blower (9) is mounted on the support plate (12); support pillars (11) are provided at the four corners of the bottom of the support plate (12); and an air purifier (18) is provided between the return pipes (15).

3. A fertilizer production dryer with waste heat recovery according to claim 1, It is characterized in that The rotating mechanism (16) comprises a motor (5), a driving gear (6) and a driven gear (7); the motor (5) is mounted at the bottom of the dryer body (1); the output shaft of the motor (5) is provided with a driving gear (6); the outer wall of the drum (4) is provided with a driven gear (7); the driving gear (6) and the driven gear (7) are meshed with each other.

4. A fertilizer production dryer with waste heat recovery according to claim 1, It is characterized in that The inner wall of the drum (4) is provided with multiple layers of scrapers (17).

5. A fertilizer production dryer with waste heat recovery according to claim 1, It is characterized in that A filtering layer (13) is provided on the feed inlet (2).

6. A fertilizer production dryer with waste heat recovery according to claim 1, It is characterized in that A material discharge box (14) is provided below the material discharge port (3).

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