A multi-stage cyclone preheater airflow optimization system for gypsum acid production

Abstract

The utility model provides a kind of gypsum preparation acid multistage cyclone preheater airflow optimization system, it is related to cyclone preheater technical field, including cyclone barrel one, the bottom fixed mounting of cyclone barrel one has hot gas inlet pipe, the outer wall fixed mounting of cyclone barrel one has conveying pipe.The utility model is rotated by starting motor two, motor two drives shaft two, since the bevel gear two of shaft two outer wall and the bevel gear one of shaft one end are mutually engaged, shaft two will synchronously drive the reverse rotation of shell two sides'shaft one, wherein the stirring rod two of shaft two outer wall is high-speed rotation in cyclone barrel one, and the raw material that just enters is promptly cut and scattered, and the stirring rod one of shaft one outer wall is rotated in cyclone barrel two, and the raw material entering this place is further dispersed, this design solves the problem that raw material agglomeration is difficult to contact with high-temperature airflow in background art, completely breaks raw material lump, guarantees every raw material can be fully heat exchanged with high-temperature airflow.

Description

Technical Field

[0001] This utility model relates to the field of cyclone preheater technology, and in particular to an airflow optimization system for a multi-stage cyclone preheater for gypsum-based acid production. Background Technology

[0002] In the field of industrial sulfuric acid production, gypsum-based sulfuric acid production has become a key development direction in the green chemical industry in recent years because it enables the resource utilization of industrial by-product gypsum (such as phosphogypsum and desulfurization gypsum), effectively alleviating the environmental pressure caused by solid waste accumulation, and producing high-value-added sulfuric acid products. In the overall process of gypsum-based sulfuric acid production, the preheating of gypsum raw materials is a crucial step that determines subsequent calcination efficiency, energy consumption control, and product quality. The multi-stage cyclone preheater, as the core equipment in this stage, directly affects the economic efficiency and environmental performance of the entire production line due to its airflow stability and raw material heat exchange efficiency.

[0003] In traditional gypsum-based acid production multi-stage cyclone preheaters, poor raw material dispersion is the core issue restricting heat exchange efficiency. After entering the system, gypsum raw materials often form clumps of varying sizes due to uneven airflow disturbance and material agglomeration. These clumps not only have difficulty making sufficient contact with the high-temperature airflow, but also tend to deposit on the inner wall of the equipment, increasing the risk of pipeline blockage. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art and to propose an airflow optimization system for a multi-stage cyclone preheater for gypsum-based acid production.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a multi-stage cyclone preheater airflow optimization system for gypsum acid production, comprising a cyclone cylinder one, a hot gas inlet pipe fixedly installed at the bottom of the cyclone cylinder one, a conveying pipe fixedly installed on the outer wall of the cyclone cylinder one, a feed hopper fixedly installed on the top outer wall of the conveying pipe, a motor one fixedly installed at the end of the conveying pipe away from the cyclone cylinder one, a spiral conveying rod fixedly installed at the output end of the motor one, connecting pipes symmetrically fixedly installed at the top of the cyclone cylinder one, a second cyclone cylinder fixedly installed at the top of the connecting pipe, and a third cyclone cylinder fixedly installed at the top of the second cyclone cylinder. The cyclone has a discharge pipe. A connecting plate is fixedly installed on the outer wall of the second cyclone. A housing is fixedly installed at the end of the connecting plate away from the second cyclone. A rotating shaft is rotatably connected to both sides of the housing. A stirring rod is evenly and symmetrically fixedly installed on the outer wall of the first rotating shaft. A bevel gear is fixedly installed at the end of the first rotating shaft near the housing. A C-shaped frame is fixedly installed on the top of the second cyclone. A motor is fixedly installed on the top of the C-shaped frame. A rotating shaft is fixedly installed at the output end of the second motor. A stirring rod is evenly and symmetrically fixedly installed on the bottom outer wall of the second rotating shaft. A bevel gear is fixedly installed on the outer wall of the second rotating shaft.

[0006] Preferably, the first rotating shaft is rotatably connected to the second cyclone, and the second rotating shaft is rotatably connected to the housing and the first cyclone.

[0007] Preferably, the first bevel gear and the second bevel gear mesh with each other.

[0008] Preferably, an oil inlet pipe is fixedly installed inside the top of the housing, and a screw cap is threadedly connected to the top outer wall of the oil inlet pipe.

[0009] Preferably, the outer wall of the screw cap is provided with anti-slip grooves evenly distributed.

[0010] Preferably, a connecting rod is fixedly installed on one side of the feed hopper, a fixing block is fixedly installed at the end of the connecting rod away from the feed hopper, an L-plate is slidably connected to the outer wall of the connecting rod, a cover plate is fixedly installed at the end of the L-plate away from the connecting rod, a handle is fixedly installed on the side of the L-plate away from the cover plate, and a spring is sleeved on the outer wall of the connecting rod.

[0011] Preferably, one end of the spring is fixedly connected to the L-plate, and the other end of the spring is fixedly connected to the fixing block.

[0012] Preferably, the cover plate is slidably connected to the feed hopper.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, by starting motor two, motor two drives rotating shaft two to rotate. Since the bevel gear two on the outer wall of rotating shaft two meshes with the bevel gear one at the end of rotating shaft one, rotating shaft two will synchronously drive rotating shaft one on both sides of the shell to rotate in opposite directions. The stirring rod two on the outer wall of rotating shaft two rotates at high speed in cyclone cylinder one to cut and disperse the raw materials that have just entered. The stirring rod one on the outer wall of rotating shaft one rotates in cyclone cylinder two to further disperse the raw materials that have entered. This design solves the problem in the background technology that the raw materials are difficult to fully contact with the high-temperature airflow, completely breaks up the raw material clumps, and ensures that each raw material can fully exchange heat with the high-temperature airflow.

[0015] 2. In this utility model, by pulling the handle, the L-plate slides along the outer wall of the connecting rod. At this time, the L-plate will compress the spring sleeved on the outer wall of the connecting rod, thereby separating the cover plate from the feed hopper. Then, the gypsum raw material is poured into the feed hopper. After the raw material enters the conveying pipe through the feed hopper, the handle is released, the spring returns to its natural extended state and pushes the L-plate to reset, so that the cover plate re-fits the feed hopper. This design only opens the cover plate during the brief process of pouring in the raw material, and the spring can quickly reset after the raw material is poured in to achieve sealing, minimizing the exposure time of the feed inlet and eliminating the possibility of foreign matter mixing into the gypsum raw material from the source. Attached Figure Description

[0016] Figure 1 This utility model presents an overall structural schematic diagram of a multi-stage cyclone preheater airflow optimization system for gypsum-based acid production;

[0017] Figure 2 This utility model provides a cross-sectional structural schematic diagram of a multi-stage cyclone preheater airflow optimization system for gypsum-based acid production;

[0018] Figure 3 This invention proposes an airflow optimization system for a multi-stage cyclone preheater in gypsum-based acid production. Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This invention presents a partial structural schematic diagram of a multi-stage cyclone preheater airflow optimization system for gypsum-based acid production.

[0020] Legend: 1. Cyclone 1; 2. Hot air inlet pipe; 3. Conveying pipe; 4. Feed hopper; 5. Motor 1; 6. Screw conveyor; 7. Connecting pipe; 8. Cyclone 2; 9. Discharge pipe; 10. Connecting plate; 11. Shell; 12. Shaft 1; 13. Stirring rod 1; 14. Bevel gear 1; 15. C-frame; 16. Motor 2; 17. Shaft 2; 18. Stirring rod 2; 19. Bevel gear 2; 20. Oil inlet pipe; 21. Screw cap; 22. Anti-slip groove; 23. Connecting rod; 24. Fixing block; 25. L-plate; 26. Cover plate; 27. Handle; 28. Spring. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figures 1-4As shown, this utility model provides a technical solution: a multi-stage cyclone preheater airflow optimization system for gypsum acid production, including a cyclone 1, a hot gas inlet pipe 2 fixedly installed at the bottom of the cyclone 1, a conveying pipe 3 fixedly installed on the outer wall of the cyclone 1, a feed hopper 4 fixedly installed on the top outer wall of the conveying pipe 3, a motor 5 fixedly installed at the end of the conveying pipe 3 away from the cyclone 1, a spiral conveying rod 6 fixedly installed at the output end of the motor 5, connecting pipes 7 symmetrically fixedly installed at the top of the cyclone 1, a second cyclone 8 fixedly installed at the top of the connecting pipes 7, a discharge pipe 9 fixedly installed at the top of the second cyclone 8, a connecting plate 10 fixedly installed on the outer wall of the second cyclone 8, a housing 11 fixedly installed at the end of the connecting plate 10 away from the second cyclone 8, and a rotating shaft 12 rotatably connected to both sides of the housing 11. A stirring rod 13 is uniformly and symmetrically fixedly installed on the outer wall of the housing 11. A bevel gear 14 is fixedly installed at one end of the rotating shaft 12 near the housing 11. A C-shaped frame 15 is fixedly installed on the top of the cyclone 8. A motor 16 is fixedly installed on the top of the C-shaped frame 15. A rotating shaft 17 is fixedly installed at the output end of the motor 16. A stirring rod 18 is uniformly and symmetrically fixedly installed on the bottom outer wall of the rotating shaft 17. A bevel gear 19 is fixedly installed on the outer wall of the rotating shaft 17. The rotating shaft 12 is rotatably connected to the cyclone 8. The rotating shaft 17 is rotatably connected to the housing 11 and the cyclone 11. The bevel gear 14 and the bevel gear 19 mesh with each other. An oil inlet pipe 20 is fixedly installed inside the top of the housing 11. A cap 21 is threadedly connected to the top outer wall of the oil inlet pipe 20. Anti-slip grooves 22 are uniformly opened on the outer wall of the cap 21.

[0024] In this embodiment, by starting motor 2 16, motor 2 16 drives rotating shaft 2 17 to rotate. Since bevel gear 2 19 on the outer wall of rotating shaft 2 17 meshes with bevel gear 14 at the end of rotating shaft 1 12, rotating shaft 2 17 will synchronously drive rotating shaft 1 12 on both sides of housing 11 to rotate in opposite directions. The stirring rod 2 18 on the outer wall of rotating shaft 2 17 rotates at high speed in cyclone 1 1 to cut and disperse the raw material that has just entered. The stirring rod 13 on the outer wall of rotating shaft 1 12 rotates in cyclone 8 to further disperse the raw material that enters here. This design solves the problem in the prior art that raw material agglomeration makes it difficult to fully contact the high-temperature airflow, completely breaks up the raw material agglomeration, and ensures that each raw material can fully exchange heat with the high-temperature airflow.

[0025] Example 2: Figure 4As shown, a connecting rod 23 is fixedly installed on one side of the feed hopper 4. A fixing block 24 is fixedly installed on the end of the connecting rod 23 away from the feed hopper 4. An L-plate 25 is slidably connected to the outer wall of the connecting rod 23. A cover plate 26 is fixedly installed on the end of the L-plate 25 away from the connecting rod 23. A handle 27 is fixedly installed on the side of the L-plate 25 away from the cover plate 26. A spring 28 is sleeved on the outer wall of the connecting rod 23. One end of the spring 28 is fixedly connected to the L-plate 25, and the other end of the spring 28 is fixedly connected to the fixing block 24. The cover plate 26 is slidably connected to the feed hopper 4.

[0026] In this embodiment, by pulling the handle 27, the L-plate 25 slides along the outer wall of the connecting rod 23. At this time, the L-plate 25 compresses the spring 28 sleeved on the outer wall of the connecting rod 23, thereby separating the cover plate 26 from the feed hopper 4. Then, the gypsum raw material is poured into the feed hopper 4. After the raw material enters the conveying pipe 3 along the feed hopper 4, the handle 27 is released, the spring 28 returns to its natural extended state and pushes the L-plate 25 to reset, so that the cover plate 26 re-fits the feed hopper 4. This design only opens the cover plate 26 during the brief process of pouring in the raw material, and the spring 28 can quickly reset after the raw material is poured in to achieve sealing, minimizing the exposure time of the feed inlet and eliminating the possibility of foreign matter mixing into the gypsum raw material from the source.

[0027] The working principle of this embodiment is as follows: In use, first pull the handle 27, causing the L-plate 25 to slide along the outer wall of the connecting rod 23. At this time, the L-plate 25 compresses the spring 28 sleeved on the outer wall of the connecting rod 23, thereby separating the cover plate 26 from the feed hopper 4. Then, pour the gypsum raw material into the feed hopper 4. After the raw material enters the conveying pipe 3 along the feed hopper 4, release the handle 27. The spring 28 returns to its natural extended state and pushes the L-plate 25 back to its original position, causing the cover plate 26 to re-adhere to the feed hopper 4. Then, start the motor 5. The output end of machine 5 drives the spiral conveying rod 6 inside the conveying pipe 3 to rotate, pushing the raw material evenly into the cyclone 1. At the same time, the external high-temperature hot air enters upward through the hot air inlet pipe 2 at the bottom of the cyclone 1. After entering tangentially, the raw material forms a cross-flow with the high-temperature airflow. It spirals upward with the airflow in the cyclone 1, achieving preliminary heat exchange. The raw material that has undergone preliminary heat exchange enters the cyclone 2 8 with the airflow through the symmetrical connecting pipe 7 at the top. The raw material that has completed heat exchange in the cyclone 2 8 is finally discharged from the discharge pipe 9. During the preheating process, to prevent raw material lumps from affecting heat exchange efficiency, motor 16 at the top of C-frame 15 can be started. Motor 16 drives shaft 17 to rotate. Since bevel gear 19 on the outer wall of shaft 17 meshes with bevel gear 14 at the end of shaft 12, shaft 17 will synchronously drive shaft 12 on both sides of housing 11 to rotate in opposite directions. Stirring rod 18 on the outer wall of shaft 17 rotates at high speed in cyclone 11 to cut and disperse the raw material that has just entered. Stirring rod 13 on the outer wall of shaft 12 rotates in cyclone 8 to further disperse the raw material entering there. To reduce friction loss when bevel gear 14 and bevel gear 19 rotate, the cap 21 with anti-slip groove 22 on the oil inlet pipe 20 at the top of housing 11 can be opened to add lubricating oil.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A multi-stage cyclone preheater airflow optimization system for gypsum-based acid production, comprising a cyclone separator (1), characterized in that: A hot air inlet pipe (2) is fixedly installed at the bottom of the first cyclone (1). A conveying pipe (3) is fixedly installed on the outer wall of the first cyclone (1). A feed hopper (4) is fixedly installed on the top outer wall of the conveying pipe (3). A motor (5) is fixedly installed at the end of the conveying pipe (3) away from the first cyclone (1). A spiral conveying rod (6) is fixedly installed at the output end of the motor (5). A connecting pipe (7) is symmetrically fixedly installed at the top of the first cyclone (1). A second cyclone (8) is fixedly installed at the top of the connecting pipe (7). A discharge pipe (9) is fixedly installed at the top of the second cyclone (8). A connecting plate (10) is fixedly installed on the outer wall of the second cyclone (8). The connecting plate (10) is located away from the cyclone. One end of the second cyclone duct (8) is fixedly installed with a housing (11). The two sides of the housing (11) are rotatably connected with a rotating shaft (12). The outer wall of the rotating shaft (12) is uniformly and symmetrically fixedly installed with a stirring rod (13). The end of the rotating shaft (12) near the housing (11) is fixedly installed with a bevel gear (14). The top of the second cyclone duct (8) is fixedly installed with a C-shaped frame (15). The top of the C-shaped frame (15) is fixedly installed with a motor (16). The output end of the motor (16) is fixedly installed with a rotating shaft (17). The bottom outer wall of the rotating shaft (17) is uniformly and symmetrically fixedly installed with a stirring rod (18). The outer wall of the rotating shaft (17) is fixedly installed with a bevel gear (19).

2. The airflow optimization system for a multi-stage cyclone preheater in gypsum-based acid production according to claim 1, characterized in that: The first rotating shaft (12) is rotatably connected to the second cyclone (8), and the second rotating shaft (17) is rotatably connected to the housing (11) and the first cyclone (1).

3. The airflow optimization system for a multi-stage cyclone preheater in gypsum-based acid production according to claim 1, characterized in that: The first bevel gear (14) and the second bevel gear (19) mesh with each other.

4. The airflow optimization system for a multi-stage cyclone preheater in gypsum-based acid production according to claim 1, characterized in that: An oil inlet pipe (20) is fixedly installed inside the top of the housing (11), and a cap (21) is threadedly connected to the top outer wall of the oil inlet pipe (20).

5. The airflow optimization system for a multi-stage cyclone preheater in gypsum-based acid production according to claim 4, characterized in that: The outer wall of the screw cap (21) is uniformly provided with anti-slip grooves (22).

6. The airflow optimization system for a multi-stage cyclone preheater in gypsum-based acid production according to claim 1, characterized in that: A connecting rod (23) is fixedly installed on one side of the feed hopper (4). A fixing block (24) is fixedly installed on the end of the connecting rod (23) away from the feed hopper (4). An L plate (25) is slidably connected to the outer wall of the connecting rod (23). A cover plate (26) is fixedly installed on the end of the L plate (25) away from the connecting rod (23). A handle (27) is fixedly installed on the side of the L plate (25) away from the cover plate (26). A spring (28) is sleeved on the outer wall of the connecting rod (23).

7. The airflow optimization system for a multi-stage cyclone preheater in gypsum-based acid production according to claim 6, characterized in that: One end of the spring (28) is fixedly connected to the L plate (25), and the other end of the spring (28) is fixedly connected to the fixing block (24).

8. The airflow optimization system for a multi-stage cyclone preheater in gypsum-based acid production according to claim 6, characterized in that: The cover plate (26) is slidably connected to the feed hopper (4).

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