A high efficiency vortex type drying system

Abstract

The utility model discloses a high -efficient vortex type drying system, including the cylinder drying machine, the bottom of cylinder drying machine is provided with the base, and the top surface fixed mounting of base has the speed -reducing motor, the outer wall surface fixed mounting of cylinder drying machine has the gear ring, and the left and right ends of cylinder drying machine are connected through the bearing feeding end and the discharge end respectively, in the utility model, install the conical mixer in the feeding end of cylinder drying machine, when the combustion heat source, hot air enters the feeding cover of cylinder drying machine through the heat source import, passes through the hot -blast port of the upper end of the inclined plate and enters the hot -blast cover with the porous structure, realizes horizontal heat source delivery, at this moment, the phosphorite of conical screw push of conical mixer passes through the communicating mouth and the feeding port in proper order and enters the feeding cover, makes the phosphorite and air that fall to the inclined plate and heat source fully, evenly mixes, to make the drying temperature more constant, reduces the interference of the drying environment to the outside air continuous entry.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, and in particular to a high-efficiency vortex drying system. Background Technology

[0002] Currently, the main purpose of drying phosphate rock is to reduce its moisture content and increase its dryness, thereby improving its processing performance and application effect.

[0003] In existing technologies, drum dryers are commonly used to dry phosphate rock. However, traditional drum dryers introduce outside air at the feeding end during the feeding stage, which interferes with the drying environment inside the drum dryer. Secondly, the raw phosphate rock itself may have agglomeration, causing the agglomerated raw phosphate rock entering the drum dryer to accumulate particles, which in turn leads to hot air short-circuiting.

[0004] To address this, a high-efficiency vortex drying system is proposed, which has the advantages of reducing interference in the drying environment and avoiding hot air short-circuiting, thereby solving the problems mentioned in the background technology. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a highly efficient vortex drying system.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a high-efficiency vortex drying system, including a drum dryer. A base is provided below the drum dryer, and a geared motor is fixedly installed on the top surface of the base. A geared ring is fixedly installed on the outer wall of the drum dryer. The left and right ends of the drum dryer are respectively connected to the feed end and the discharge end via bearings. A gear is fixedly installed on the output end of the geared motor, and the gear meshes with the geared ring on the outer wall of the drum dryer. A heat source inlet is provided on the end face of the feed end, and a conical mixer is connected to the top of the feed end via a flange. The top of the conical mixer is fixedly mounted... Equipped with a servo motor, the output end of which is fixed to a stirring shaft via a coupling. A conical spiral is welded to the bottom end of the stirring shaft. The right end of the drum dryer is connected to a feed hood, which is connected to a heat source inlet. The feed hood and the feed end are rotatably connected via a bearing. A sealing filler is provided on the lower inner side of the feed end, which contacts the feed hood. A connecting nozzle connected to a conical mixer is welded to the upper inner side of the feed end. An inclined plate is welded inside the feed hood, and a hot air vent is opened on the surface of the inclined plate. A hot air hood is welded to the upper end of the inclined plate corresponding to the hot air vent. A feed port is opened on the surface of the hot air hood corresponding to the connecting nozzle.

[0007] As a further description of the above technical solution: a stirring rod is welded to the upper surface of the stirring shaft, and several stirring columns are welded at equal intervals to the bottom surface of the stirring rod; a filter screen is detachably installed on the inner wall of the conical mixer, and the center of the filter screen is connected to the stirring shaft through a bearing; a feeding nozzle is connected to the top of the conical mixer, and a crushing roller assembly is installed inside the feeding nozzle; the crushing roller assembly consists of a motor drive component and a crushing roller whose output end is fixed by a coupling.

[0008] As a further description of the above technical solution: the stirring column of the stirring rod is arranged vertically about the filter screen, and a gap is reserved between the stirring column of the stirring rod and the filter screen.

[0009] As a further description of the above technical solution: the lower end of the connecting nozzle is provided with an arc-shaped opening, and the arc-shaped opening is in contact with the outer wall of the feed hood, and a heat-resistant rubber ring is provided between the arc-shaped opening and the outer wall of the feed hood.

[0010] As a further description of the above technical solution: the top of the discharge end is connected to an air duct, and the air duct is connected to an external cyclone separator; the bottom of the discharge end is connected to a discharge nozzle.

[0011] As a further description of the above technical solution: the outer walls of both the feed end and the discharge end are welded with several legs, and both the feed end and the discharge end are disc-shaped structures.

[0012] As a further description of the above technical solution: the material of the sealing filler is polytetrafluoroethylene, ceramic fiber cotton or glass fiber cotton.

[0013] As a further description of the above technical solution: the side of the hot air hood facing the air inlet is provided with a porous structure, and the porous structure of the hot air is connected to the hot air inlet and the heat source inlet.

[0014] This utility model has the following beneficial effects: In this invention, a conical mixer is installed at the feed end of the drum dryer. When the heat source is ignited, hot air enters the feed hood of the drum dryer through the heat source inlet, and then passes through the hot air inlet at the upper end of the inclined plate into the hot air hood with a porous structure, thus achieving transverse heat source delivery. At this time, the phosphate rock pushed by the conical spiral at the conical mixer passes through the connecting nozzle and the feed inlet in sequence into the feed hood, so that the phosphate rock falling onto the inclined plate and the air are fully and evenly mixed with the heat source, so that the drying temperature is more constant and the interference of the continuous entry of outside air on the drying environment is reduced. In this invention, a crushing roller assembly is installed at the feeding nozzle of a conical mixer. The crushing roller assembly consists of a motor drive and crushing rollers fixed to its output end via a coupling. As the two crushing rollers of the assembly rotate, the phosphate rock entering the feeding nozzle undergoes pre-crushing treatment, breaking up any lumps in the phosphate rock and preventing large particles from accumulating and causing a hot air short circuit in the drum dryer. Furthermore, a servo motor drives the stirring shaft to rotate, which in turn drives the stirring rod and several stirring columns mounted on its bottom surface to rotate. This allows the stirring rod and the stirring columns to disperse and stir the phosphate rock falling onto the filter screen, increasing the filter screen's filtration effect, maintaining the optimal particle size distribution of the phosphate rock feed, and improving the phosphate rock drying efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a high-efficiency vortex drying system according to the present invention; Figure 2 This is a cross-sectional view of the internal structure of the feed end; Figure 3 This is a schematic diagram of the internal structure of a cone mixer; Figure 4 This is a schematic diagram of the discharge end.

[0016] Legend: 1. Rotary drum dryer; 2. Feeding end; 3. Conical mixer; 4. Heat source inlet; 5. Discharge end; 6. Discharge nozzle; 7. Exhaust pipe; 8. Gear ring; 9. Base; 10. Gear motor; 11. Gear; 12. Servo motor; 13. Feeding nozzle; 14. Feed hood; 15. Inclined plate; 16. Feed inlet; 17. Hot air hood; 18. Hot air outlet; 19. Sealing filler; 20. Connecting nozzle; 21. Agitator shaft; 22. Filter screen; 23. Agitator rod; 24. Agitator column; 25. Conical spiral; 26. Crushing roller assembly. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] According to an embodiment of the present invention, a high-efficiency vortex drying system is provided.

[0019] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4As shown, a high-efficiency vortex drying system according to an embodiment of the present invention includes a drum dryer 1. A base 9 is provided below the drum dryer 1, and a geared motor 10 is fixedly installed on the top surface of the base 9. A gear ring 8 is fixedly installed on the outer wall of the drum dryer 1, and the left and right ends of the drum dryer 1 are respectively connected to the feed end 2 and the discharge end 5 through bearings. A gear 11 is fixedly installed on the output end of the geared motor 10, and the gear 11 meshes with the gear ring 8 on the outer wall of the drum dryer 1. A heat source inlet 4 is opened on the end face of the feed end 2, and the top of the feed end 2 is connected through a flange. A conical mixer 3 is provided, with a servo motor 12 fixedly mounted on its top. The output end of the servo motor 12 is fixed to a stirring shaft 21 via a coupling. A conical spiral 25 is welded to the bottom end of the stirring shaft 21. A feed hood 14 is connected to the right end of the drum dryer 1, and the feed hood 14 is connected to the heat source inlet 4. The feed hood 14 and the feed end 2 are rotatably connected via bearings. A sealing filler 19 is provided on the lower inner side of the feed end 2, contacting the feed hood 14. A connecting nozzle 20, communicating with the conical mixer 3, is welded to the upper inner side of the feed end 2. The feed hood 14... An inclined plate 15 is welded internally, and a hot air vent 18 is opened on the surface of the inclined plate 15. A hot air hood 17 is welded to the upper end of the inclined plate 15 corresponding to the hot air vent 18. A feed inlet 16 is opened on the surface of the hot air hood 17 corresponding to the connecting nozzle 20. The drum dryer 1 is also equipped with a control system, which includes a PLC control system (to accurately control and monitor the dryer's operating parameters such as temperature, speed, and drying time, to achieve automated operation and improve drying efficiency and quality) and a touch screen (as a human-machine interface, facilitating operators to set and adjust various parameters, and also allowing real-time monitoring). The display shows the operating status of the dryer. The specific details are well-known prior art and will not be elaborated further. The feed end 2 and the discharge end 5 are rotatably connected to both ends of the drum dryer 1 through bearings, which is beneficial for the drying of phosphate rock and the feeding and discharging of materials. The servo motor 12 and the motor drive of the crushing roller group 26 described below are controlled by manually starting and stopping the switch. The wiring diagram of the power components and the power supply are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail. Please refer to Figure 3A stirring rod 23 is welded to the upper surface of the stirring shaft 21, and several stirring columns 24 are welded at equal intervals to the bottom surface of the stirring rod 23. A filter screen 22 is detachably installed on the inner wall of the conical mixer 3, and the center of the filter screen 22 is connected to the stirring shaft 21 through a bearing. A feeding nozzle 13 is connected to the top of the conical mixer 3, and a crushing roller group 26 is installed inside the feeding nozzle 13. The crushing roller group 26 consists of a motor drive and a crushing roller whose output end is fixed by a coupling. Through the above, on the one hand, the agglomerates in the phosphate rock are crushed to avoid the hot air short circuit phenomenon caused by the accumulation of large particles in the drum dryer 1. On the other hand, the particle standard of the phosphate rock feed is maintained to the optimal state, thereby improving the phosphate rock drying efficiency.

[0020] Please refer to Figure 3 The stirring column 24 of the stirring rod 23 is set vertically about the filter screen 22, and a gap is reserved between the stirring column 24 of the stirring rod 23 and the filter screen 22. Through the stirring column 24 of the stirring rod 23, the phosphate rock falling on the filter screen 22 can be dispersed and stirred, thereby increasing the filtration effect of the filter screen 22.

[0021] Please refer to Figure 2 The lower end of the connecting nozzle 20 is provided with an arc-shaped opening, which contacts the outer wall of the feed hood 14. A heat-resistant rubber ring is provided between the arc-shaped opening and the outer wall of the feed hood 14. Through the setting of the arc-shaped opening and the heat-resistant rubber ring, the connecting nozzle 20 and the feed hood 14 are kept in a sealed state and can rotate relative to each other.

[0022] Please refer to Figure 1 and Figure 4 The top of the discharge end 5 is connected to the air duct 7, and the air duct 7 is connected to the external cyclone separator. The bottom of the discharge end 5 is connected to the discharge nozzle 6. The air duct 7 and the external cyclone separator facilitate the separation of drying flue gas and particulate matter. The discharge nozzle 6 facilitates the discharge of phosphate rock after drying.

[0023] Please refer to Figure 1 , Figure 2 and Figure 4 Both the feed end 2 and the discharge end 5 have several support legs welded to their outer walls. Both the feed end 2 and the discharge end 5 are disc-shaped structures. The support legs increase the support effect of the feed end 2 and the discharge end 5. The disc-shaped structure of the feed end 2 and the discharge end 5 meets the rotation requirements of the drum dryer 1.

[0024] Please refer to Figure 2 The sealing filler 19 is made of polytetrafluoroethylene, ceramic fiber cotton or glass fiber cotton. By using the above materials as the sealing filler 19, the problem of phosphate rock entering the lower part of the feed hood 2 and being unable to be discharged is avoided, thus reducing raw material loss.

[0025] Please refer to Figure 2 The hot air hood 17 has a porous structure on the side facing the air inlet, and the porous structure of the hot air is connected to the hot air inlet 18 and the heat source inlet 4. With this structure, the porous hot air hood 17 allows the phosphate rock and air falling onto the inclined plate 15 to be fully and evenly mixed with the heat source, so as to make the drying temperature more constant.

[0026] Working principle: In use, powdered phosphate rock is first fed into the feeding nozzle 13 of the conical mixer 3. A crushing roller assembly 26 is installed at the feeding nozzle 13 of the conical mixer 3. The crushing roller assembly 26 consists of a motor drive and crushing rollers fixed to its output end via a coupling. As the two crushing rollers of the crushing roller assembly 26 rotate, the phosphate rock entering the feeding nozzle 13 undergoes pre-crushing treatment, breaking up any lumps in the phosphate rock. The servo motor 12 drives the stirring shaft 21 to rotate, which in turn drives the stirring rod 23 and several stirring columns 24 mounted on its bottom surface to rotate. This allows the stirring rod 23 and the stirring columns 24 to crush the phosphate rock falling onto the filter screen 22. The ore is dispersed and stirred to increase the filtration effect of the filter screen 22 and maintain the particle size standard of the phosphate rock feed to the optimal state. When the heat source is burned, hot air enters the feed hood 14 of the drum dryer 1 through the heat source inlet 4, and then enters the hot air hood 17 with a porous structure through the hot air inlet 18 at the upper end of the inclined plate 15 to realize the transverse heat source conveying. At this time, the phosphate rock pushed by the conical spiral 25 at the conical mixer 3 passes through the connecting nozzle 20 and the feed inlet 16 in sequence and enters the feed hood 14, so that the phosphate rock falling to the inclined plate 15 and the air are fully and evenly mixed with the heat source, so as to make the drying temperature more constant, until the phosphate rock entering the drum dryer 1 undergoes efficient drying treatment.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency vortex drying system, comprising a rotary drum dryer (1), characterized in that: A base (9) is provided below the drum dryer (1), and a geared motor (10) is fixedly installed on the top surface of the base (9). A gear ring (8) is fixedly installed on the outer wall of the drum dryer (1), and the left and right ends of the drum dryer (1) are respectively connected to the feed end (2) and the discharge end (5) through bearings. A gear (11) is fixedly installed on the output end of the geared motor (10), and the gear (11) meshes with the gear ring (8) on the outer wall of the drum dryer (1). A heat source inlet (4) is opened on the end face of the feed end (2), and a conical mixer (3) is connected to the top of the feed end (2) through a flange. A servo motor (12) is fixedly installed on the top of the conical mixer (3), and a stirring shaft (21) is fixed to the output end of the servo motor (12) through a coupling. A conical spiral (25) is welded to the bottom end of the mixing shaft (21). The right end of the drum dryer (1) is connected to the feed hood (14), and the feed hood (14) is connected to the heat source inlet (4). The feed hood (14) and the feed end (2) are rotatably connected by a bearing. The lower inner side of the feed end (2) is provided with a sealing filler (19) that contacts the feed hood (14). The upper inner side of the feed end (2) is welded with a connecting nozzle (20) that communicates with the conical mixer (3). An inclined plate (15) is welded inside the feed hood (14). A hot air port (18) is opened on the surface of the inclined plate (15). A hot air hood (17) is welded to the upper end of the inclined plate (15) corresponding to the hot air port (18). A feed port (16) is opened on the surface of the hot air hood (17) corresponding to the connecting nozzle (20).

2. The high-efficiency vortex drying system according to claim 1, characterized in that: The upper surface of the stirring shaft (21) is welded with a stirring rod (23), and a number of stirring columns (24) are welded at equal intervals on the bottom surface of the stirring rod (23). The inner wall of the conical mixer (3) is detachably equipped with a filter screen (22), and the center of the filter screen (22) is connected to the stirring shaft (21) through a bearing. The top of the conical mixer (3) is connected to a feeding nozzle (13), and a crushing roller group (26) is installed inside the feeding nozzle (13). The crushing roller group (26) is composed of a motor drive and a crushing roller whose output end is fixed by a coupling.

3. The high-efficiency vortex drying system according to claim 2, characterized in that: The stirring column (24) of the stirring rod (23) is set vertically about the filter screen (22), and a gap is reserved between the stirring column (24) of the stirring rod (23) and the filter screen (22).

4. The high-efficiency vortex drying system according to claim 1, characterized in that: The lower end of the connecting nozzle (20) is provided with an arc-shaped opening, and the arc-shaped opening is in contact with the outer wall of the feed hood (14), and a heat-resistant rubber ring is provided between the arc-shaped opening and the outer wall of the feed hood (14).

5. The high-efficiency vortex drying system according to claim 1, characterized in that: The top of the discharge end (5) is connected to an air duct (7), and the air duct (7) is connected to an external cyclone separator. The bottom of the discharge end (5) is connected to a discharge nozzle (6).

6. The high-efficiency vortex drying system according to claim 1, characterized in that: The outer walls of the feed end (2) and the discharge end (5) are welded with several legs, and both the feed end (2) and the discharge end (5) are disc-shaped structures.

7. The high-efficiency vortex drying system according to claim 1, characterized in that: The sealing filler (19) is made of polytetrafluoroethylene, ceramic fiber cotton or glass fiber cotton.

8. The high-efficiency vortex drying system according to claim 1, characterized in that: The hot air hood (17) has a porous structure on the side facing the air inlet, and the porous structure of the hot air is connected to the hot air inlet (18) and the heat source inlet (4).

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